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JavaScript

5 years ago
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.jade = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
(function (process){
'use strict';
/*!
* Jade
* Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
* MIT Licensed
*/
/**
* Module dependencies.
*/
var Parser = require('./parser')
, Lexer = require('./lexer')
, Compiler = require('./compiler')
, runtime = require('./runtime')
, addWith = require('with')
, fs = require('fs')
, utils = require('./utils');
/**
* Expose self closing tags.
*/
// FIXME: either stop exporting selfClosing in v2 or export the new object
// form
exports.selfClosing = Object.keys(require('void-elements'));
/**
* Default supported doctypes.
*/
exports.doctypes = require('./doctypes');
/**
* Text filters.
*/
exports.filters = require('./filters');
/**
* Utilities.
*/
exports.utils = utils;
/**
* Expose `Compiler`.
*/
exports.Compiler = Compiler;
/**
* Expose `Parser`.
*/
exports.Parser = Parser;
/**
* Expose `Lexer`.
*/
exports.Lexer = Lexer;
/**
* Nodes.
*/
exports.nodes = require('./nodes');
/**
* Jade runtime helpers.
*/
exports.runtime = runtime;
/**
* Template function cache.
*/
exports.cache = {};
/**
* Parse the given `str` of jade and return a function body.
*
* @param {String} str
* @param {Object} options
* @return {Object}
* @api private
*/
function parse(str, options){
if (options.lexer) {
console.warn('Using `lexer` as a local in render() is deprecated and '
+ 'will be interpreted as an option in Jade 2.0.0');
}
// Parse
var parser = new (options.parser || Parser)(str, options.filename, options);
var tokens;
try {
// Parse
tokens = parser.parse();
} catch (err) {
parser = parser.context();
runtime.rethrow(err, parser.filename, parser.lexer.lineno, parser.input);
}
// Compile
var compiler = new (options.compiler || Compiler)(tokens, options);
var js;
try {
js = compiler.compile();
} catch (err) {
if (err.line && (err.filename || !options.filename)) {
runtime.rethrow(err, err.filename, err.line, parser.input);
} else {
if (err instanceof Error) {
err.message += '\n\nPlease report this entire error and stack trace to https://github.com/jadejs/jade/issues';
}
throw err;
}
}
// Debug compiler
if (options.debug) {
console.error('\nCompiled Function:\n\n\u001b[90m%s\u001b[0m', js.replace(/^/gm, ' '));
}
var globals = [];
if (options.globals) {
globals = options.globals.slice();
}
globals.push('jade');
globals.push('jade_mixins');
globals.push('jade_interp');
globals.push('jade_debug');
globals.push('buf');
var body = ''
+ 'var buf = [];\n'
+ 'var jade_mixins = {};\n'
+ 'var jade_interp;\n'
+ (options.self
? 'var self = locals || {};\n' + js
: addWith('locals || {}', '\n' + js, globals)) + ';'
+ 'return buf.join("");';
return {body: body, dependencies: parser.dependencies};
}
/**
* Get the template from a string or a file, either compiled on-the-fly or
* read from cache (if enabled), and cache the template if needed.
*
* If `str` is not set, the file specified in `options.filename` will be read.
*
* If `options.cache` is true, this function reads the file from
* `options.filename` so it must be set prior to calling this function.
*
* @param {Object} options
* @param {String=} str
* @return {Function}
* @api private
*/
function handleTemplateCache (options, str) {
var key = options.filename;
if (options.cache && exports.cache[key]) {
return exports.cache[key];
} else {
if (str === undefined) str = fs.readFileSync(options.filename, 'utf8');
var templ = exports.compile(str, options);
if (options.cache) exports.cache[key] = templ;
return templ;
}
}
/**
* Compile a `Function` representation of the given jade `str`.
*
* Options:
*
* - `compileDebug` when `false` debugging code is stripped from the compiled
template, when it is explicitly `true`, the source code is included in
the compiled template for better accuracy.
* - `filename` used to improve errors when `compileDebug` is not `false` and to resolve imports/extends
*
* @param {String} str
* @param {Options} options
* @return {Function}
* @api public
*/
exports.compile = function(str, options){
var options = options || {}
, filename = options.filename
? utils.stringify(options.filename)
: 'undefined'
, fn;
str = String(str);
var parsed = parse(str, options);
if (options.compileDebug !== false) {
fn = [
'var jade_debug = [ new jade.DebugItem( 1, ' + filename + ' ) ];'
, 'try {'
, parsed.body
, '} catch (err) {'
, ' jade.rethrow(err, jade_debug[0].filename, jade_debug[0].lineno' + (options.compileDebug === true ? ',' + utils.stringify(str) : '') + ');'
, '}'
].join('\n');
} else {
fn = parsed.body;
}
fn = new Function('locals, jade', fn)
var res = function(locals){ return fn(locals, Object.create(runtime)) };
if (options.client) {
res.toString = function () {
var err = new Error('The `client` option is deprecated, use the `jade.compileClient` method instead');
err.name = 'Warning';
console.error(err.stack || /* istanbul ignore next */ err.message);
return exports.compileClient(str, options);
};
}
res.dependencies = parsed.dependencies;
return res;
};
/**
* Compile a JavaScript source representation of the given jade `str`.
*
* Options:
*
* - `compileDebug` When it is `true`, the source code is included in
* the compiled template for better error messages.
* - `filename` used to improve errors when `compileDebug` is not `true` and to resolve imports/extends
* - `name` the name of the resulting function (defaults to "template")
*
* @param {String} str
* @param {Options} options
* @return {Object}
* @api public
*/
exports.compileClientWithDependenciesTracked = function(str, options){
var options = options || {};
var name = options.name || 'template';
var filename = options.filename ? utils.stringify(options.filename) : 'undefined';
var fn;
str = String(str);
options.compileDebug = options.compileDebug ? true : false;
var parsed = parse(str, options);
if (options.compileDebug) {
fn = [
'var jade_debug = [ new jade.DebugItem( 1, ' + filename + ' ) ];'
, 'try {'
, parsed.body
, '} catch (err) {'
, ' jade.rethrow(err, jade_debug[0].filename, jade_debug[0].lineno, ' + utils.stringify(str) + ');'
, '}'
].join('\n');
} else {
fn = parsed.body;
}
return {body: 'function ' + name + '(locals) {\n' + fn + '\n}', dependencies: parsed.dependencies};
};
/**
* Compile a JavaScript source representation of the given jade `str`.
*
* Options:
*
* - `compileDebug` When it is `true`, the source code is included in
* the compiled template for better error messages.
* - `filename` used to improve errors when `compileDebug` is not `true` and to resolve imports/extends
* - `name` the name of the resulting function (defaults to "template")
*
* @param {String} str
* @param {Options} options
* @return {String}
* @api public
*/
exports.compileClient = function (str, options) {
return exports.compileClientWithDependenciesTracked(str, options).body;
};
/**
* Compile a `Function` representation of the given jade file.
*
* Options:
*
* - `compileDebug` when `false` debugging code is stripped from the compiled
template, when it is explicitly `true`, the source code is included in
the compiled template for better accuracy.
*
* @param {String} path
* @param {Options} options
* @return {Function}
* @api public
*/
exports.compileFile = function (path, options) {
options = options || {};
options.filename = path;
return handleTemplateCache(options);
};
/**
* Render the given `str` of jade.
*
* Options:
*
* - `cache` enable template caching
* - `filename` filename required for `include` / `extends` and caching
*
* @param {String} str
* @param {Object|Function} options or fn
* @param {Function|undefined} fn
* @returns {String}
* @api public
*/
exports.render = function(str, options, fn){
// support callback API
if ('function' == typeof options) {
fn = options, options = undefined;
}
if (typeof fn === 'function') {
var res
try {
res = exports.render(str, options);
} catch (ex) {
return fn(ex);
}
return fn(null, res);
}
options = options || {};
// cache requires .filename
if (options.cache && !options.filename) {
throw new Error('the "filename" option is required for caching');
}
return handleTemplateCache(options, str)(options);
};
/**
* Render a Jade file at the given `path`.
*
* @param {String} path
* @param {Object|Function} options or callback
* @param {Function|undefined} fn
* @returns {String}
* @api public
*/
exports.renderFile = function(path, options, fn){
// support callback API
if ('function' == typeof options) {
fn = options, options = undefined;
}
if (typeof fn === 'function') {
var res
try {
res = exports.renderFile(path, options);
} catch (ex) {
return fn(ex);
}
return fn(null, res);
}
options = options || {};
options.filename = path;
return handleTemplateCache(options)(options);
};
/**
* Compile a Jade file at the given `path` for use on the client.
*
* @param {String} path
* @param {Object} options
* @returns {String}
* @api public
*/
exports.compileFileClient = function(path, options){
var key = path + ':client';
options = options || {};
options.filename = path;
if (options.cache && exports.cache[key]) {
return exports.cache[key];
}
var str = fs.readFileSync(options.filename, 'utf8');
var out = exports.compileClient(str, options);
if (options.cache) exports.cache[key] = out;
return out;
};
/**
* Express support.
*/
exports.__express = function(path, options, fn) {
if(options.compileDebug == undefined && process.env.NODE_ENV === 'production') {
options.compileDebug = false;
}
exports.renderFile(path, options, fn);
}
}).call(this,require('_process'))
},{"./compiler":2,"./doctypes":3,"./filters":4,"./lexer":6,"./nodes":16,"./parser":23,"./runtime":24,"./utils":25,"_process":28,"fs":26,"void-elements":34,"with":35}],2:[function(require,module,exports){
'use strict';
var nodes = require('./nodes');
var filters = require('./filters');
var doctypes = require('./doctypes');
var runtime = require('./runtime');
var utils = require('./utils');
var selfClosing = require('void-elements');
var parseJSExpression = require('character-parser').parseMax;
var constantinople = require('constantinople');
function isConstant(src) {
return constantinople(src, {jade: runtime, 'jade_interp': undefined});
}
function toConstant(src) {
return constantinople.toConstant(src, {jade: runtime, 'jade_interp': undefined});
}
function errorAtNode(node, error) {
error.line = node.line;
error.filename = node.filename;
return error;
}
/**
* Initialize `Compiler` with the given `node`.
*
* @param {Node} node
* @param {Object} options
* @api public
*/
var Compiler = module.exports = function Compiler(node, options) {
this.options = options = options || {};
this.node = node;
this.hasCompiledDoctype = false;
this.hasCompiledTag = false;
this.pp = options.pretty || false;
if (this.pp && typeof this.pp !== 'string') {
this.pp = ' ';
}
this.debug = false !== options.compileDebug;
this.indents = 0;
this.parentIndents = 0;
this.terse = false;
this.mixins = {};
this.dynamicMixins = false;
if (options.doctype) this.setDoctype(options.doctype);
};
/**
* Compiler prototype.
*/
Compiler.prototype = {
/**
* Compile parse tree to JavaScript.
*
* @api public
*/
compile: function(){
this.buf = [];
if (this.pp) this.buf.push("var jade_indent = [];");
this.lastBufferedIdx = -1;
this.visit(this.node);
if (!this.dynamicMixins) {
// if there are no dynamic mixins we can remove any un-used mixins
var mixinNames = Object.keys(this.mixins);
for (var i = 0; i < mixinNames.length; i++) {
var mixin = this.mixins[mixinNames[i]];
if (!mixin.used) {
for (var x = 0; x < mixin.instances.length; x++) {
for (var y = mixin.instances[x].start; y < mixin.instances[x].end; y++) {
this.buf[y] = '';
}
}
}
}
}
return this.buf.join('\n');
},
/**
* Sets the default doctype `name`. Sets terse mode to `true` when
* html 5 is used, causing self-closing tags to end with ">" vs "/>",
* and boolean attributes are not mirrored.
*
* @param {string} name
* @api public
*/
setDoctype: function(name){
this.doctype = doctypes[name.toLowerCase()] || '<!DOCTYPE ' + name + '>';
this.terse = this.doctype.toLowerCase() == '<!doctype html>';
this.xml = 0 == this.doctype.indexOf('<?xml');
},
/**
* Buffer the given `str` exactly as is or with interpolation
*
* @param {String} str
* @param {Boolean} interpolate
* @api public
*/
buffer: function (str, interpolate) {
var self = this;
if (interpolate) {
var match = /(\\)?([#!]){((?:.|\n)*)$/.exec(str);
if (match) {
this.buffer(str.substr(0, match.index), false);
if (match[1]) { // escape
this.buffer(match[2] + '{', false);
this.buffer(match[3], true);
return;
} else {
var rest = match[3];
var range = parseJSExpression(rest);
var code = ('!' == match[2] ? '' : 'jade.escape') + "((jade_interp = " + range.src + ") == null ? '' : jade_interp)";
this.bufferExpression(code);
this.buffer(rest.substr(range.end + 1), true);
return;
}
}
}
str = utils.stringify(str);
str = str.substr(1, str.length - 2);
if (this.lastBufferedIdx == this.buf.length) {
if (this.lastBufferedType === 'code') this.lastBuffered += ' + "';
this.lastBufferedType = 'text';
this.lastBuffered += str;
this.buf[this.lastBufferedIdx - 1] = 'buf.push(' + this.bufferStartChar + this.lastBuffered + '");'
} else {
this.buf.push('buf.push("' + str + '");');
this.lastBufferedType = 'text';
this.bufferStartChar = '"';
this.lastBuffered = str;
this.lastBufferedIdx = this.buf.length;
}
},
/**
* Buffer the given `src` so it is evaluated at run time
*
* @param {String} src
* @api public
*/
bufferExpression: function (src) {
if (isConstant(src)) {
return this.buffer(toConstant(src) + '', false)
}
if (this.lastBufferedIdx == this.buf.length) {
if (this.lastBufferedType === 'text') this.lastBuffered += '"';
this.lastBufferedType = 'code';
this.lastBuffered += ' + (' + src + ')';
this.buf[this.lastBufferedIdx - 1] = 'buf.push(' + this.bufferStartChar + this.lastBuffered + ');'
} else {
this.buf.push('buf.push(' + src + ');');
this.lastBufferedType = 'code';
this.bufferStartChar = '';
this.lastBuffered = '(' + src + ')';
this.lastBufferedIdx = this.buf.length;
}
},
/**
* Buffer an indent based on the current `indent`
* property and an additional `offset`.
*
* @param {Number} offset
* @param {Boolean} newline
* @api public
*/
prettyIndent: function(offset, newline){
offset = offset || 0;
newline = newline ? '\n' : '';
this.buffer(newline + Array(this.indents + offset).join(this.pp));
if (this.parentIndents)
this.buf.push("buf.push.apply(buf, jade_indent);");
},
/**
* Visit `node`.
*
* @param {Node} node
* @api public
*/
visit: function(node){
var debug = this.debug;
if (debug) {
this.buf.push('jade_debug.unshift(new jade.DebugItem( ' + node.line
+ ', ' + (node.filename
? utils.stringify(node.filename)
: 'jade_debug[0].filename')
+ ' ));');
}
// Massive hack to fix our context
// stack for - else[ if] etc
if (false === node.debug && this.debug) {
this.buf.pop();
this.buf.pop();
}
this.visitNode(node);
if (debug) this.buf.push('jade_debug.shift();');
},
/**
* Visit `node`.
*
* @param {Node} node
* @api public
*/
visitNode: function(node){
return this['visit' + node.type](node);
},
/**
* Visit case `node`.
*
* @param {Literal} node
* @api public
*/
visitCase: function(node){
var _ = this.withinCase;
this.withinCase = true;
this.buf.push('switch (' + node.expr + '){');
this.visit(node.block);
this.buf.push('}');
this.withinCase = _;
},
/**
* Visit when `node`.
*
* @param {Literal} node
* @api public
*/
visitWhen: function(node){
if ('default' == node.expr) {
this.buf.push('default:');
} else {
this.buf.push('case ' + node.expr + ':');
}
if (node.block) {
this.visit(node.block);
this.buf.push(' break;');
}
},
/**
* Visit literal `node`.
*
* @param {Literal} node
* @api public
*/
visitLiteral: function(node){
this.buffer(node.str);
},
/**
* Visit all nodes in `block`.
*
* @param {Block} block
* @api public
*/
visitBlock: function(block){
var len = block.nodes.length
, escape = this.escape
, pp = this.pp
// Pretty print multi-line text
if (pp && len > 1 && !escape && block.nodes[0].isText && block.nodes[1].isText)
this.prettyIndent(1, true);
for (var i = 0; i < len; ++i) {
// Pretty print text
if (pp && i > 0 && !escape && block.nodes[i].isText && block.nodes[i-1].isText)
this.prettyIndent(1, false);
this.visit(block.nodes[i]);
// Multiple text nodes are separated by newlines
if (block.nodes[i+1] && block.nodes[i].isText && block.nodes[i+1].isText)
this.buffer('\n');
}
},
/**
* Visit a mixin's `block` keyword.
*
* @param {MixinBlock} block
* @api public
*/
visitMixinBlock: function(block){
if (this.pp) this.buf.push("jade_indent.push('" + Array(this.indents + 1).join(this.pp) + "');");
this.buf.push('block && block();');
if (this.pp) this.buf.push("jade_indent.pop();");
},
/**
* Visit `doctype`. Sets terse mode to `true` when html 5
* is used, causing self-closing tags to end with ">" vs "/>",
* and boolean attributes are not mirrored.
*
* @param {Doctype} doctype
* @api public
*/
visitDoctype: function(doctype){
if (doctype && (doctype.val || !this.doctype)) {
this.setDoctype(doctype.val || 'default');
}
if (this.doctype) this.buffer(this.doctype);
this.hasCompiledDoctype = true;
},
/**
* Visit `mixin`, generating a function that
* may be called within the template.
*
* @param {Mixin} mixin
* @api public
*/
visitMixin: function(mixin){
var name = 'jade_mixins[';
var args = mixin.args || '';
var block = mixin.block;
var attrs = mixin.attrs;
var attrsBlocks = mixin.attributeBlocks.slice();
var pp = this.pp;
var dynamic = mixin.name[0]==='#';
var key = mixin.name;
if (dynamic) this.dynamicMixins = true;
name += (dynamic ? mixin.name.substr(2,mixin.name.length-3):'"'+mixin.name+'"')+']';
this.mixins[key] = this.mixins[key] || {used: false, instances: []};
if (mixin.call) {
this.mixins[key].used = true;
if (pp) this.buf.push("jade_indent.push('" + Array(this.indents + 1).join(pp) + "');")
if (block || attrs.length || attrsBlocks.length) {
this.buf.push(name + '.call({');
if (block) {
this.buf.push('block: function(){');
// Render block with no indents, dynamically added when rendered
this.parentIndents++;
var _indents = this.indents;
this.indents = 0;
this.visit(mixin.block);
this.indents = _indents;
this.parentIndents--;
if (attrs.length || attrsBlocks.length) {
this.buf.push('},');
} else {
this.buf.push('}');
}
}
if (attrsBlocks.length) {
if (attrs.length) {
var val = this.attrs(attrs);
attrsBlocks.unshift(val);
}
this.buf.push('attributes: jade.merge([' + attrsBlocks.join(',') + '])');
} else if (attrs.length) {
var val = this.attrs(attrs);
this.buf.push('attributes: ' + val);
}
if (args) {
this.buf.push('}, ' + args + ');');
} else {
this.buf.push('});');
}
} else {
this.buf.push(name + '(' + args + ');');
}
if (pp) this.buf.push("jade_indent.pop();")
} else {
var mixin_start = this.buf.length;
args = args ? args.split(',') : [];
var rest;
if (args.length && /^\.\.\./.test(args[args.length - 1].trim())) {
rest = args.pop().trim().replace(/^\.\.\./, '');
}
// we need use jade_interp here for v8: https://code.google.com/p/v8/issues/detail?id=4165
// once fixed, use this: this.buf.push(name + ' = function(' + args.join(',') + '){');
this.buf.push(name + ' = jade_interp = function(' + args.join(',') + '){');
this.buf.push('var block = (this && this.block), attributes = (this && this.attributes) || {};');
if (rest) {
this.buf.push('var ' + rest + ' = [];');
this.buf.push('for (jade_interp = ' + args.length + '; jade_interp < arguments.length; jade_interp++) {');
this.buf.push(' ' + rest + '.push(arguments[jade_interp]);');
this.buf.push('}');
}
this.parentIndents++;
this.visit(block);
this.parentIndents--;
this.buf.push('};');
var mixin_end = this.buf.length;
this.mixins[key].instances.push({start: mixin_start, end: mixin_end});
}
},
/**
* Visit `tag` buffering tag markup, generating
* attributes, visiting the `tag`'s code and block.
*
* @param {Tag} tag
* @api public
*/
visitTag: function(tag){
this.indents++;
var name = tag.name
, pp = this.pp
, self = this;
function bufferName() {
if (tag.buffer) self.bufferExpression(name);
else self.buffer(name);
}
if ('pre' == tag.name) this.escape = true;
if (!this.hasCompiledTag) {
if (!this.hasCompiledDoctype && 'html' == name) {
this.visitDoctype();
}
this.hasCompiledTag = true;
}
// pretty print
if (pp && !tag.isInline())
this.prettyIndent(0, true);
if (tag.selfClosing || (!this.xml && selfClosing[tag.name])) {
this.buffer('<');
bufferName();
this.visitAttributes(tag.attrs, tag.attributeBlocks.slice());
this.terse
? this.buffer('>')
: this.buffer('/>');
// if it is non-empty throw an error
if (tag.block &&
!(tag.block.type === 'Block' && tag.block.nodes.length === 0) &&
tag.block.nodes.some(function (tag) {
return tag.type !== 'Text' || !/^\s*$/.test(tag.val)
})) {
throw errorAtNode(tag, new Error(name + ' is self closing and should not have content.'));
}
} else {
// Optimize attributes buffering
this.buffer('<');
bufferName();
this.visitAttributes(tag.attrs, tag.attributeBlocks.slice());
this.buffer('>');
if (tag.code) this.visitCode(tag.code);
this.visit(tag.block);
// pretty print
if (pp && !tag.isInline() && 'pre' != tag.name && !tag.canInline())
this.prettyIndent(0, true);
this.buffer('</');
bufferName();
this.buffer('>');
}
if ('pre' == tag.name) this.escape = false;
this.indents--;
},
/**
* Visit `filter`, throwing when the filter does not exist.
*
* @param {Filter} filter
* @api public
*/
visitFilter: function(filter){
var text = filter.block.nodes.map(
function(node){ return node.val; }
).join('\n');
filter.attrs.filename = this.options.filename;
try {
this.buffer(filters(filter.name, text, filter.attrs), true);
} catch (err) {
throw errorAtNode(filter, err);
}
},
/**
* Visit `text` node.
*
* @param {Text} text
* @api public
*/
visitText: function(text){
this.buffer(text.val, true);
},
/**
* Visit a `comment`, only buffering when the buffer flag is set.
*
* @param {Comment} comment
* @api public
*/
visitComment: function(comment){
if (!comment.buffer) return;
if (this.pp) this.prettyIndent(1, true);
this.buffer('<!--' + comment.val + '-->');
},
/**
* Visit a `BlockComment`.
*
* @param {Comment} comment
* @api public
*/
visitBlockComment: function(comment){
if (!comment.buffer) return;
if (this.pp) this.prettyIndent(1, true);
this.buffer('<!--' + comment.val);
this.visit(comment.block);
if (this.pp) this.prettyIndent(1, true);
this.buffer('-->');
},
/**
* Visit `code`, respecting buffer / escape flags.
* If the code is followed by a block, wrap it in
* a self-calling function.
*
* @param {Code} code
* @api public
*/
visitCode: function(code){
// Wrap code blocks with {}.
// we only wrap unbuffered code blocks ATM
// since they are usually flow control
// Buffer code
if (code.buffer) {
var val = code.val.trim();
val = 'null == (jade_interp = '+val+') ? "" : jade_interp';
if (code.escape) val = 'jade.escape(' + val + ')';
this.bufferExpression(val);
} else {
this.buf.push(code.val);
}
// Block support
if (code.block) {
if (!code.buffer) this.buf.push('{');
this.visit(code.block);
if (!code.buffer) this.buf.push('}');
}
},
/**
* Visit `each` block.
*
* @param {Each} each
* @api public
*/
visitEach: function(each){
this.buf.push(''
+ '// iterate ' + each.obj + '\n'
+ ';(function(){\n'
+ ' var $$obj = ' + each.obj + ';\n'
+ ' if (\'number\' == typeof $$obj.length) {\n');
if (each.alternative) {
this.buf.push(' if ($$obj.length) {');
}
this.buf.push(''
+ ' for (var ' + each.key + ' = 0, $$l = $$obj.length; ' + each.key + ' < $$l; ' + each.key + '++) {\n'
+ ' var ' + each.val + ' = $$obj[' + each.key + '];\n');
this.visit(each.block);
this.buf.push(' }\n');
if (each.alternative) {
this.buf.push(' } else {');
this.visit(each.alternative);
this.buf.push(' }');
}
this.buf.push(''
+ ' } else {\n'
+ ' var $$l = 0;\n'
+ ' for (var ' + each.key + ' in $$obj) {\n'
+ ' $$l++;'
+ ' var ' + each.val + ' = $$obj[' + each.key + '];\n');
this.visit(each.block);
this.buf.push(' }\n');
if (each.alternative) {
this.buf.push(' if ($$l === 0) {');
this.visit(each.alternative);
this.buf.push(' }');
}
this.buf.push(' }\n}).call(this);\n');
},
/**
* Visit `attrs`.
*
* @param {Array} attrs
* @api public
*/
visitAttributes: function(attrs, attributeBlocks){
if (attributeBlocks.length) {
if (attrs.length) {
var val = this.attrs(attrs);
attributeBlocks.unshift(val);
}
this.bufferExpression('jade.attrs(jade.merge([' + attributeBlocks.join(',') + ']), ' + utils.stringify(this.terse) + ')');
} else if (attrs.length) {
this.attrs(attrs, true);
}
},
/**
* Compile attributes.
*/
attrs: function(attrs, buffer){
var buf = [];
var classes = [];
var classEscaping = [];
attrs.forEach(function(attr){
var key = attr.name;
var escaped = attr.escaped;
if (key === 'class') {
classes.push(attr.val);
classEscaping.push(attr.escaped);
} else if (isConstant(attr.val)) {
if (buffer) {
this.buffer(runtime.attr(key, toConstant(attr.val), escaped, this.terse));
} else {
var val = toConstant(attr.val);
if (key === 'style') val = runtime.style(val);
if (escaped && !(key.indexOf('data') === 0 && typeof val !== 'string')) {
val = runtime.escape(val);
}
buf.push(utils.stringify(key) + ': ' + utils.stringify(val));
}
} else {
if (buffer) {
this.bufferExpression('jade.attr("' + key + '", ' + attr.val + ', ' + utils.stringify(escaped) + ', ' + utils.stringify(this.terse) + ')');
} else {
var val = attr.val;
if (key === 'style') {
val = 'jade.style(' + val + ')';
}
if (escaped && !(key.indexOf('data') === 0)) {
val = 'jade.escape(' + val + ')';
} else if (escaped) {
val = '(typeof (jade_interp = ' + val + ') == "string" ? jade.escape(jade_interp) : jade_interp)';
}
buf.push(utils.stringify(key) + ': ' + val);
}
}
}.bind(this));
if (buffer) {
if (classes.every(isConstant)) {
this.buffer(runtime.cls(classes.map(toConstant), classEscaping));
} else {
this.bufferExpression('jade.cls([' + classes.join(',') + '], ' + utils.stringify(classEscaping) + ')');
}
} else if (classes.length) {
if (classes.every(isConstant)) {
classes = utils.stringify(runtime.joinClasses(classes.map(toConstant).map(runtime.joinClasses).map(function (cls, i) {
return classEscaping[i] ? runtime.escape(cls) : cls;
})));
} else {
classes = '(jade_interp = ' + utils.stringify(classEscaping) + ',' +
' jade.joinClasses([' + classes.join(',') + '].map(jade.joinClasses).map(function (cls, i) {' +
' return jade_interp[i] ? jade.escape(cls) : cls' +
' }))' +
')';
}
if (classes.length)
buf.push('"class": ' + classes);
}
return '{' + buf.join(',') + '}';
}
};
},{"./doctypes":3,"./filters":4,"./nodes":16,"./runtime":24,"./utils":25,"character-parser":29,"constantinople":30,"void-elements":34}],3:[function(require,module,exports){
'use strict';
module.exports = {
'default': '<!DOCTYPE html>'
, 'xml': '<?xml version="1.0" encoding="utf-8" ?>'
, 'transitional': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'
, 'strict': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">'
, 'frameset': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">'
, '1.1': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
, 'basic': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN" "http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">'
, 'mobile': '<!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.2//EN" "http://www.openmobilealliance.org/tech/DTD/xhtml-mobile12.dtd">'
};
},{}],4:[function(require,module,exports){
'use strict';
module.exports = filter;
function filter(name, str, options) {
if (typeof filter[name] === 'function') {
return filter[name](str, options);
} else {
throw new Error('unknown filter ":' + name + '"');
}
}
},{}],5:[function(require,module,exports){
'use strict';
module.exports = [
'a'
, 'abbr'
, 'acronym'
, 'b'
, 'br'
, 'code'
, 'em'
, 'font'
, 'i'
, 'img'
, 'ins'
, 'kbd'
, 'map'
, 'samp'
, 'small'
, 'span'
, 'strong'
, 'sub'
, 'sup'
];
},{}],6:[function(require,module,exports){
'use strict';
var utils = require('./utils');
var characterParser = require('character-parser');
/**
* Initialize `Lexer` with the given `str`.
*
* @param {String} str
* @param {String} filename
* @api private
*/
var Lexer = module.exports = function Lexer(str, filename) {
this.input = str.replace(/\r\n|\r/g, '\n');
this.filename = filename;
this.deferredTokens = [];
this.lastIndents = 0;
this.lineno = 1;
this.stash = [];
this.indentStack = [];
this.indentRe = null;
this.pipeless = false;
};
function assertExpression(exp) {
//this verifies that a JavaScript expression is valid
Function('', 'return (' + exp + ')');
}
function assertNestingCorrect(exp) {
//this verifies that code is properly nested, but allows
//invalid JavaScript such as the contents of `attributes`
var res = characterParser(exp)
if (res.isNesting()) {
throw new Error('Nesting must match on expression `' + exp + '`')
}
}
/**
* Lexer prototype.
*/
Lexer.prototype = {
/**
* Construct a token with the given `type` and `val`.
*
* @param {String} type
* @param {String} val
* @return {Object}
* @api private
*/
tok: function(type, val){
return {
type: type
, line: this.lineno
, val: val
}
},
/**
* Consume the given `len` of input.
*
* @param {Number} len
* @api private
*/
consume: function(len){
this.input = this.input.substr(len);
},
/**
* Scan for `type` with the given `regexp`.
*
* @param {String} type
* @param {RegExp} regexp
* @return {Object}
* @api private
*/
scan: function(regexp, type){
var captures;
if (captures = regexp.exec(this.input)) {
this.consume(captures[0].length);
return this.tok(type, captures[1]);
}
},
/**
* Defer the given `tok`.
*
* @param {Object} tok
* @api private
*/
defer: function(tok){
this.deferredTokens.push(tok);
},
/**
* Lookahead `n` tokens.
*
* @param {Number} n
* @return {Object}
* @api private
*/
lookahead: function(n){
var fetch = n - this.stash.length;
while (fetch-- > 0) this.stash.push(this.next());
return this.stash[--n];
},
/**
* Return the indexOf `(` or `{` or `[` / `)` or `}` or `]` delimiters.
*
* @return {Number}
* @api private
*/
bracketExpression: function(skip){
skip = skip || 0;
var start = this.input[skip];
if (start != '(' && start != '{' && start != '[') throw new Error('unrecognized start character');
var end = ({'(': ')', '{': '}', '[': ']'})[start];
var range = characterParser.parseMax(this.input, {start: skip + 1});
if (this.input[range.end] !== end) throw new Error('start character ' + start + ' does not match end character ' + this.input[range.end]);
return range;
},
/**
* Stashed token.
*/
stashed: function() {
return this.stash.length
&& this.stash.shift();
},
/**
* Deferred token.
*/
deferred: function() {
return this.deferredTokens.length
&& this.deferredTokens.shift();
},
/**
* end-of-source.
*/
eos: function() {
if (this.input.length) return;
if (this.indentStack.length) {
this.indentStack.shift();
return this.tok('outdent');
} else {
return this.tok('eos');
}
},
/**
* Blank line.
*/
blank: function() {
var captures;
if (captures = /^\n *\n/.exec(this.input)) {
this.consume(captures[0].length - 1);
++this.lineno;
if (this.pipeless) return this.tok('text', '');
return this.next();
}
},
/**
* Comment.
*/
comment: function() {
var captures;
if (captures = /^\/\/(-)?([^\n]*)/.exec(this.input)) {
this.consume(captures[0].length);
var tok = this.tok('comment', captures[2]);
tok.buffer = '-' != captures[1];
this.pipeless = true;
return tok;
}
},
/**
* Interpolated tag.
*/
interpolation: function() {
if (/^#\{/.test(this.input)) {
var match = this.bracketExpression(1);
this.consume(match.end + 1);
return this.tok('interpolation', match.src);
}
},
/**
* Tag.
*/
tag: function() {
var captures;
if (captures = /^(\w[-:\w]*)(\/?)/.exec(this.input)) {
this.consume(captures[0].length);
var tok, name = captures[1];
if (':' == name[name.length - 1]) {
name = name.slice(0, -1);
tok = this.tok('tag', name);
this.defer(this.tok(':'));
if (this.input[0] !== ' ') {
console.warn('Warning: space required after `:` on line ' + this.lineno +
' of jade file "' + this.filename + '"');
}
while (' ' == this.input[0]) this.input = this.input.substr(1);
} else {
tok = this.tok('tag', name);
}
tok.selfClosing = !!captures[2];
return tok;
}
},
/**
* Filter.
*/
filter: function() {
var tok = this.scan(/^:([\w\-]+)/, 'filter');
if (tok) {
this.pipeless = true;
return tok;
}
},
/**
* Doctype.
*/
doctype: function() {
if (this.scan(/^!!! *([^\n]+)?/, 'doctype')) {
throw new Error('`!!!` is deprecated, you must now use `doctype`');
}
var node = this.scan(/^(?:doctype) *([^\n]+)?/, 'doctype');
if (node && node.val && node.val.trim() === '5') {
throw new Error('`doctype 5` is deprecated, you must now use `doctype html`');
}
return node;
},
/**
* Id.
*/
id: function() {
return this.scan(/^#([\w-]+)/, 'id');
},
/**
* Class.
*/
className: function() {
return this.scan(/^\.([\w-]+)/, 'class');
},
/**
* Text.
*/
text: function() {
return this.scan(/^(?:\| ?| )([^\n]+)/, 'text') ||
this.scan(/^\|?( )/, 'text') ||
this.scan(/^(<[^\n]*)/, 'text');
},
textFail: function () {
var tok;
if (tok = this.scan(/^([^\.\n][^\n]+)/, 'text')) {
console.warn('Warning: missing space before text for line ' + this.lineno +
' of jade file "' + this.filename + '"');
return tok;
}
},
/**
* Dot.
*/
dot: function() {
var match;
if (match = this.scan(/^\./, 'dot')) {
this.pipeless = true;
return match;
}
},
/**
* Extends.
*/
"extends": function() {
return this.scan(/^extends? +([^\n]+)/, 'extends');
},
/**
* Block prepend.
*/
prepend: function() {
var captures;
if (captures = /^prepend +([^\n]+)/.exec(this.input)) {
this.consume(captures[0].length);
var mode = 'prepend'
, name = captures[1]
, tok = this.tok('block', name);
tok.mode = mode;
return tok;
}
},
/**
* Block append.
*/
append: function() {
var captures;
if (captures = /^append +([^\n]+)/.exec(this.input)) {
this.consume(captures[0].length);
var mode = 'append'
, name = captures[1]
, tok = this.tok('block', name);
tok.mode = mode;
return tok;
}
},
/**
* Block.
*/
block: function() {
var captures;
if (captures = /^block\b *(?:(prepend|append) +)?([^\n]+)/.exec(this.input)) {
this.consume(captures[0].length);
var mode = captures[1] || 'replace'
, name = captures[2]
, tok = this.tok('block', name);
tok.mode = mode;
return tok;
}
},
/**
* Mixin Block.
*/
mixinBlock: function() {
var captures;
if (captures = /^block[ \t]*(\n|$)/.exec(this.input)) {
this.consume(captures[0].length - captures[1].length);
return this.tok('mixin-block');
}
},
/**
* Yield.
*/
'yield': function() {
return this.scan(/^yield */, 'yield');
},
/**
* Include.
*/
include: function() {
return this.scan(/^include +([^\n]+)/, 'include');
},
/**
* Include with filter
*/
includeFiltered: function() {
var captures;
if (captures = /^include:([\w\-]+)([\( ])/.exec(this.input)) {
this.consume(captures[0].length - 1);
var filter = captures[1];
var attrs = captures[2] === '(' ? this.attrs() : null;
if (!(captures[2] === ' ' || this.input[0] === ' ')) {
throw new Error('expected space after include:filter but got ' + utils.stringify(this.input[0]));
}
captures = /^ *([^\n]+)/.exec(this.input);
if (!captures || captures[1].trim() === '') {
throw new Error('missing path for include:filter');
}
this.consume(captures[0].length);
var path = captures[1];
var tok = this.tok('include', path);
tok.filter = filter;
tok.attrs = attrs;
return tok;
}
},
/**
* Case.
*/
"case": function() {
return this.scan(/^case +([^\n]+)/, 'case');
},
/**
* When.
*/
when: function() {
return this.scan(/^when +([^:\n]+)/, 'when');
},
/**
* Default.
*/
"default": function() {
return this.scan(/^default */, 'default');
},
/**
* Call mixin.
*/
call: function(){
var tok, captures;
if (captures = /^\+(\s*)(([-\w]+)|(#\{))/.exec(this.input)) {
// try to consume simple or interpolated call
if (captures[3]) {
// simple call
this.consume(captures[0].length);
tok = this.tok('call', captures[3]);
} else {
// interpolated call
var match = this.bracketExpression(2 + captures[1].length);
this.consume(match.end + 1);
assertExpression(match.src);
tok = this.tok('call', '#{'+match.src+'}');
}
// Check for args (not attributes)
if (captures = /^ *\(/.exec(this.input)) {
var range = this.bracketExpression(captures[0].length - 1);
if (!/^\s*[-\w]+ *=/.test(range.src)) { // not attributes
this.consume(range.end + 1);
tok.args = range.src;
}
if (tok.args) {
assertExpression('[' + tok.args + ']');
}
}
return tok;
}
},
/**
* Mixin.
*/
mixin: function(){
var captures;
if (captures = /^mixin +([-\w]+)(?: *\((.*)\))? */.exec(this.input)) {
this.consume(captures[0].length);
var tok = this.tok('mixin', captures[1]);
tok.args = captures[2];
return tok;
}
},
/**
* Conditional.
*/
conditional: function() {
var captures;
if (captures = /^(if|unless|else if|else)\b([^\n]*)/.exec(this.input)) {
this.consume(captures[0].length);
var type = captures[1]
var js = captures[2];
var isIf = false;
var isElse = false;
switch (type) {
case 'if':
assertExpression(js)
js = 'if (' + js + ')';
isIf = true;
break;
case 'unless':
assertExpression(js)
js = 'if (!(' + js + '))';
isIf = true;
break;
case 'else if':
assertExpression(js)
js = 'else if (' + js + ')';
isIf = true;
isElse = true;
break;
case 'else':
if (js && js.trim()) {
throw new Error('`else` cannot have a condition, perhaps you meant `else if`');
}
js = 'else';
isElse = true;
break;
}
var tok = this.tok('code', js);
tok.isElse = isElse;
tok.isIf = isIf;
tok.requiresBlock = true;
return tok;
}
},
/**
* While.
*/
"while": function() {
var captures;
if (captures = /^while +([^\n]+)/.exec(this.input)) {
this.consume(captures[0].length);
assertExpression(captures[1])
var tok = this.tok('code', 'while (' + captures[1] + ')');
tok.requiresBlock = true;
return tok;
}
},
/**
* Each.
*/
each: function() {
var captures;
if (captures = /^(?:- *)?(?:each|for) +([a-zA-Z_$][\w$]*)(?: *, *([a-zA-Z_$][\w$]*))? * in *([^\n]+)/.exec(this.input)) {
this.consume(captures[0].length);
var tok = this.tok('each', captures[1]);
tok.key = captures[2] || '$index';
assertExpression(captures[3])
tok.code = captures[3];
return tok;
}
},
/**
* Code.
*/
code: function() {
var captures;
if (captures = /^(!?=|-)[ \t]*([^\n]+)/.exec(this.input)) {
this.consume(captures[0].length);
var flags = captures[1];
captures[1] = captures[2];
var tok = this.tok('code', captures[1]);
tok.escape = flags.charAt(0) === '=';
tok.buffer = flags.charAt(0) === '=' || flags.charAt(1) === '=';
if (tok.buffer) assertExpression(captures[1])
return tok;
}
},
/**
* Block code.
*/
blockCode: function() {
var captures;
if (captures = /^-\n/.exec(this.input)) {
this.consume(captures[0].length - 1);
var tok = this.tok('blockCode');
this.pipeless = true;
return tok;
}
},
/**
* Attributes.
*/
attrs: function() {
if ('(' == this.input.charAt(0)) {
var index = this.bracketExpression().end
, str = this.input.substr(1, index-1)
, tok = this.tok('attrs');
assertNestingCorrect(str);
var quote = '';
var interpolate = function (attr) {
return attr.replace(/(\\)?#\{(.+)/g, function(_, escape, expr){
if (escape) return _;
try {
var range = characterParser.parseMax(expr);
if (expr[range.end] !== '}') return _.substr(0, 2) + interpolate(_.substr(2));
assertExpression(range.src)
return quote + " + (" + range.src + ") + " + quote + interpolate(expr.substr(range.end + 1));
} catch (ex) {
return _.substr(0, 2) + interpolate(_.substr(2));
}
});
}
this.consume(index + 1);
tok.attrs = [];
var escapedAttr = true
var key = '';
var val = '';
var interpolatable = '';
var state = characterParser.defaultState();
var loc = 'key';
var isEndOfAttribute = function (i) {
if (key.trim() === '') return false;
if (i === str.length) return true;
if (loc === 'key') {
if (str[i] === ' ' || str[i] === '\n') {
for (var x = i; x < str.length; x++) {
if (str[x] != ' ' && str[x] != '\n') {
if (str[x] === '=' || str[x] === '!' || str[x] === ',') return false;
else return true;
}
}
}
return str[i] === ','
} else if (loc === 'value' && !state.isNesting()) {
try {
assertExpression(val);
if (str[i] === ' ' || str[i] === '\n') {
for (var x = i; x < str.length; x++) {
if (str[x] != ' ' && str[x] != '\n') {
if (characterParser.isPunctuator(str[x]) && str[x] != '"' && str[x] != "'") return false;
else return true;
}
}
}
return str[i] === ',';
} catch (ex) {
return false;
}
}
}
this.lineno += str.split("\n").length - 1;
for (var i = 0; i <= str.length; i++) {
if (isEndOfAttribute(i)) {
val = val.trim();
if (val) assertExpression(val)
key = key.trim();
key = key.replace(/^['"]|['"]$/g, '');
tok.attrs.push({
name: key,
val: '' == val ? true : val,
escaped: escapedAttr
});
key = val = '';
loc = 'key';
escapedAttr = false;
} else {
switch (loc) {
case 'key-char':
if (str[i] === quote) {
loc = 'key';
if (i + 1 < str.length && [' ', ',', '!', '=', '\n'].indexOf(str[i + 1]) === -1)
throw new Error('Unexpected character ' + str[i + 1] + ' expected ` `, `\\n`, `,`, `!` or `=`');
} else {
key += str[i];
}
break;
case 'key':
if (key === '' && (str[i] === '"' || str[i] === "'")) {
loc = 'key-char';
quote = str[i];
} else if (str[i] === '!' || str[i] === '=') {
escapedAttr = str[i] !== '!';
if (str[i] === '!') i++;
if (str[i] !== '=') throw new Error('Unexpected character ' + str[i] + ' expected `=`');
loc = 'value';
state = characterParser.defaultState();
} else {
key += str[i]
}
break;
case 'value':
state = characterParser.parseChar(str[i], state);
if (state.isString()) {
loc = 'string';
quote = str[i];
interpolatable = str[i];
} else {
val += str[i];
}
break;
case 'string':
state = characterParser.parseChar(str[i], state);
interpolatable += str[i];
if (!state.isString()) {
loc = 'value';
val += interpolate(interpolatable);
}
break;
}
}
}
if ('/' == this.input.charAt(0)) {
this.consume(1);
tok.selfClosing = true;
}
return tok;
}
},
/**
* &attributes block
*/
attributesBlock: function () {
var captures;
if (/^&attributes\b/.test(this.input)) {
this.consume(11);
var args = this.bracketExpression();
this.consume(args.end + 1);
return this.tok('&attributes', args.src);
}
},
/**
* Indent | Outdent | Newline.
*/
indent: function() {
var captures, re;
// established regexp
if (this.indentRe) {
captures = this.indentRe.exec(this.input);
// determine regexp
} else {
// tabs
re = /^\n(\t*) */;
captures = re.exec(this.input);
// spaces
if (captures && !captures[1].length) {
re = /^\n( *)/;
captures = re.exec(this.input);
}
// established
if (captures && captures[1].length) this.indentRe = re;
}
if (captures) {
var tok
, indents = captures[1].length;
++this.lineno;
this.consume(indents + 1);
if (' ' == this.input[0] || '\t' == this.input[0]) {
throw new Error('Invalid indentation, you can use tabs or spaces but not both');
}
// blank line
if ('\n' == this.input[0]) {
this.pipeless = false;
return this.tok('newline');
}
// outdent
if (this.indentStack.length && indents < this.indentStack[0]) {
while (this.indentStack.length && this.indentStack[0] > indents) {
this.stash.push(this.tok('outdent'));
this.indentStack.shift();
}
tok = this.stash.pop();
// indent
} else if (indents && indents != this.indentStack[0]) {
this.indentStack.unshift(indents);
tok = this.tok('indent', indents);
// newline
} else {
tok = this.tok('newline');
}
this.pipeless = false;
return tok;
}
},
/**
* Pipe-less text consumed only when
* pipeless is true;
*/
pipelessText: function() {
if (!this.pipeless) return;
var captures, re;
// established regexp
if (this.indentRe) {
captures = this.indentRe.exec(this.input);
// determine regexp
} else {
// tabs
re = /^\n(\t*) */;
captures = re.exec(this.input);
// spaces
if (captures && !captures[1].length) {
re = /^\n( *)/;
captures = re.exec(this.input);
}
// established
if (captures && captures[1].length) this.indentRe = re;
}
var indents = captures && captures[1].length;
if (indents && (this.indentStack.length === 0 || indents > this.indentStack[0])) {
var indent = captures[1];
var line;
var tokens = [];
var isMatch;
do {
// text has `\n` as a prefix
var i = this.input.substr(1).indexOf('\n');
if (-1 == i) i = this.input.length - 1;
var str = this.input.substr(1, i);
isMatch = str.substr(0, indent.length) === indent || !str.trim();
if (isMatch) {
// consume test along with `\n` prefix if match
this.consume(str.length + 1);
++this.lineno;
tokens.push(str.substr(indent.length));
}
} while(this.input.length && isMatch);
while (this.input.length === 0 && tokens[tokens.length - 1] === '') tokens.pop();
return this.tok('pipeless-text', tokens);
}
},
/**
* ':'
*/
colon: function() {
var good = /^: +/.test(this.input);
var res = this.scan(/^: */, ':');
if (res && !good) {
console.warn('Warning: space required after `:` on line ' + this.lineno +
' of jade file "' + this.filename + '"');
}
return res;
},
fail: function () {
throw new Error('unexpected text ' + this.input.substr(0, 5));
},
/**
* Return the next token object, or those
* previously stashed by lookahead.
*
* @return {Object}
* @api private
*/
advance: function(){
return this.stashed()
|| this.next();
},
/**
* Return the next token object.
*
* @return {Object}
* @api private
*/
next: function() {
return this.deferred()
|| this.blank()
|| this.eos()
|| this.pipelessText()
|| this.yield()
|| this.doctype()
|| this.interpolation()
|| this["case"]()
|| this.when()
|| this["default"]()
|| this["extends"]()
|| this.append()
|| this.prepend()
|| this.block()
|| this.mixinBlock()
|| this.include()
|| this.includeFiltered()
|| this.mixin()
|| this.call()
|| this.conditional()
|| this.each()
|| this["while"]()
|| this.tag()
|| this.filter()
|| this.blockCode()
|| this.code()
|| this.id()
|| this.className()
|| this.attrs()
|| this.attributesBlock()
|| this.indent()
|| this.text()
|| this.comment()
|| this.colon()
|| this.dot()
|| this.textFail()
|| this.fail();
}
};
},{"./utils":25,"character-parser":29}],7:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize a `Attrs` node.
*
* @api public
*/
var Attrs = module.exports = function Attrs() {
this.attributeNames = [];
this.attrs = [];
this.attributeBlocks = [];
};
// Inherit from `Node`.
Attrs.prototype = Object.create(Node.prototype);
Attrs.prototype.constructor = Attrs;
Attrs.prototype.type = 'Attrs';
/**
* Set attribute `name` to `val`, keep in mind these become
* part of a raw js object literal, so to quote a value you must
* '"quote me"', otherwise or example 'user.name' is literal JavaScript.
*
* @param {String} name
* @param {String} val
* @param {Boolean} escaped
* @return {Tag} for chaining
* @api public
*/
Attrs.prototype.setAttribute = function(name, val, escaped){
if (name !== 'class' && this.attributeNames.indexOf(name) !== -1) {
throw new Error('Duplicate attribute "' + name + '" is not allowed.');
}
this.attributeNames.push(name);
this.attrs.push({ name: name, val: val, escaped: escaped });
return this;
};
/**
* Remove attribute `name` when present.
*
* @param {String} name
* @api public
*/
Attrs.prototype.removeAttribute = function(name){
var err = new Error('attrs.removeAttribute is deprecated and will be removed in v2.0.0');
console.warn(err.stack);
for (var i = 0, len = this.attrs.length; i < len; ++i) {
if (this.attrs[i] && this.attrs[i].name == name) {
delete this.attrs[i];
}
}
};
/**
* Get attribute value by `name`.
*
* @param {String} name
* @return {String}
* @api public
*/
Attrs.prototype.getAttribute = function(name){
var err = new Error('attrs.getAttribute is deprecated and will be removed in v2.0.0');
console.warn(err.stack);
for (var i = 0, len = this.attrs.length; i < len; ++i) {
if (this.attrs[i] && this.attrs[i].name == name) {
return this.attrs[i].val;
}
}
};
Attrs.prototype.addAttributes = function (src) {
this.attributeBlocks.push(src);
};
},{"./node":20}],8:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize a `BlockComment` with the given `block`.
*
* @param {String} val
* @param {Block} block
* @param {Boolean} buffer
* @api public
*/
var BlockComment = module.exports = function BlockComment(val, block, buffer) {
this.block = block;
this.val = val;
this.buffer = buffer;
};
// Inherit from `Node`.
BlockComment.prototype = Object.create(Node.prototype);
BlockComment.prototype.constructor = BlockComment;
BlockComment.prototype.type = 'BlockComment';
},{"./node":20}],9:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize a new `Block` with an optional `node`.
*
* @param {Node} node
* @api public
*/
var Block = module.exports = function Block(node){
this.nodes = [];
if (node) this.push(node);
};
// Inherit from `Node`.
Block.prototype = Object.create(Node.prototype);
Block.prototype.constructor = Block;
Block.prototype.type = 'Block';
/**
* Block flag.
*/
Block.prototype.isBlock = true;
/**
* Replace the nodes in `other` with the nodes
* in `this` block.
*
* @param {Block} other
* @api private
*/
Block.prototype.replace = function(other){
var err = new Error('block.replace is deprecated and will be removed in v2.0.0');
console.warn(err.stack);
other.nodes = this.nodes;
};
/**
* Push the given `node`.
*
* @param {Node} node
* @return {Number}
* @api public
*/
Block.prototype.push = function(node){
return this.nodes.push(node);
};
/**
* Check if this block is empty.
*
* @return {Boolean}
* @api public
*/
Block.prototype.isEmpty = function(){
return 0 == this.nodes.length;
};
/**
* Unshift the given `node`.
*
* @param {Node} node
* @return {Number}
* @api public
*/
Block.prototype.unshift = function(node){
return this.nodes.unshift(node);
};
/**
* Return the "last" block, or the first `yield` node.
*
* @return {Block}
* @api private
*/
Block.prototype.includeBlock = function(){
var ret = this
, node;
for (var i = 0, len = this.nodes.length; i < len; ++i) {
node = this.nodes[i];
if (node.yield) return node;
else if (node.textOnly) continue;
else if (node.includeBlock) ret = node.includeBlock();
else if (node.block && !node.block.isEmpty()) ret = node.block.includeBlock();
if (ret.yield) return ret;
}
return ret;
};
/**
* Return a clone of this block.
*
* @return {Block}
* @api private
*/
Block.prototype.clone = function(){
var err = new Error('block.clone is deprecated and will be removed in v2.0.0');
console.warn(err.stack);
var clone = new Block;
for (var i = 0, len = this.nodes.length; i < len; ++i) {
clone.push(this.nodes[i].clone());
}
return clone;
};
},{"./node":20}],10:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize a new `Case` with `expr`.
*
* @param {String} expr
* @api public
*/
var Case = exports = module.exports = function Case(expr, block){
this.expr = expr;
this.block = block;
};
// Inherit from `Node`.
Case.prototype = Object.create(Node.prototype);
Case.prototype.constructor = Case;
Case.prototype.type = 'Case';
var When = exports.When = function When(expr, block){
this.expr = expr;
this.block = block;
this.debug = false;
};
// Inherit from `Node`.
When.prototype = Object.create(Node.prototype);
When.prototype.constructor = When;
When.prototype.type = 'When';
},{"./node":20}],11:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize a `Code` node with the given code `val`.
* Code may also be optionally buffered and escaped.
*
* @param {String} val
* @param {Boolean} buffer
* @param {Boolean} escape
* @api public
*/
var Code = module.exports = function Code(val, buffer, escape) {
this.val = val;
this.buffer = buffer;
this.escape = escape;
if (val.match(/^ *else/)) this.debug = false;
};
// Inherit from `Node`.
Code.prototype = Object.create(Node.prototype);
Code.prototype.constructor = Code;
Code.prototype.type = 'Code'; // prevent the minifiers removing this
},{"./node":20}],12:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize a `Comment` with the given `val`, optionally `buffer`,
* otherwise the comment may render in the output.
*
* @param {String} val
* @param {Boolean} buffer
* @api public
*/
var Comment = module.exports = function Comment(val, buffer) {
this.val = val;
this.buffer = buffer;
};
// Inherit from `Node`.
Comment.prototype = Object.create(Node.prototype);
Comment.prototype.constructor = Comment;
Comment.prototype.type = 'Comment';
},{"./node":20}],13:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize a `Doctype` with the given `val`.
*
* @param {String} val
* @api public
*/
var Doctype = module.exports = function Doctype(val) {
this.val = val;
};
// Inherit from `Node`.
Doctype.prototype = Object.create(Node.prototype);
Doctype.prototype.constructor = Doctype;
Doctype.prototype.type = 'Doctype';
},{"./node":20}],14:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize an `Each` node, representing iteration
*
* @param {String} obj
* @param {String} val
* @param {String} key
* @param {Block} block
* @api public
*/
var Each = module.exports = function Each(obj, val, key, block) {
this.obj = obj;
this.val = val;
this.key = key;
this.block = block;
};
// Inherit from `Node`.
Each.prototype = Object.create(Node.prototype);
Each.prototype.constructor = Each;
Each.prototype.type = 'Each';
},{"./node":20}],15:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize a `Filter` node with the given
* filter `name` and `block`.
*
* @param {String} name
* @param {Block|Node} block
* @api public
*/
var Filter = module.exports = function Filter(name, block, attrs) {
this.name = name;
this.block = block;
this.attrs = attrs;
};
// Inherit from `Node`.
Filter.prototype = Object.create(Node.prototype);
Filter.prototype.constructor = Filter;
Filter.prototype.type = 'Filter';
},{"./node":20}],16:[function(require,module,exports){
'use strict';
exports.Node = require('./node');
exports.Tag = require('./tag');
exports.Code = require('./code');
exports.Each = require('./each');
exports.Case = require('./case');
exports.Text = require('./text');
exports.Block = require('./block');
exports.MixinBlock = require('./mixin-block');
exports.Mixin = require('./mixin');
exports.Filter = require('./filter');
exports.Comment = require('./comment');
exports.Literal = require('./literal');
exports.BlockComment = require('./block-comment');
exports.Doctype = require('./doctype');
},{"./block":9,"./block-comment":8,"./case":10,"./code":11,"./comment":12,"./doctype":13,"./each":14,"./filter":15,"./literal":17,"./mixin":19,"./mixin-block":18,"./node":20,"./tag":21,"./text":22}],17:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize a `Literal` node with the given `str.
*
* @param {String} str
* @api public
*/
var Literal = module.exports = function Literal(str) {
this.str = str;
};
// Inherit from `Node`.
Literal.prototype = Object.create(Node.prototype);
Literal.prototype.constructor = Literal;
Literal.prototype.type = 'Literal';
},{"./node":20}],18:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize a new `Block` with an optional `node`.
*
* @param {Node} node
* @api public
*/
var MixinBlock = module.exports = function MixinBlock(){};
// Inherit from `Node`.
MixinBlock.prototype = Object.create(Node.prototype);
MixinBlock.prototype.constructor = MixinBlock;
MixinBlock.prototype.type = 'MixinBlock';
},{"./node":20}],19:[function(require,module,exports){
'use strict';
var Attrs = require('./attrs');
/**
* Initialize a new `Mixin` with `name` and `block`.
*
* @param {String} name
* @param {String} args
* @param {Block} block
* @api public
*/
var Mixin = module.exports = function Mixin(name, args, block, call){
Attrs.call(this);
this.name = name;
this.args = args;
this.block = block;
this.call = call;
};
// Inherit from `Attrs`.
Mixin.prototype = Object.create(Attrs.prototype);
Mixin.prototype.constructor = Mixin;
Mixin.prototype.type = 'Mixin';
},{"./attrs":7}],20:[function(require,module,exports){
'use strict';
var Node = module.exports = function Node(){};
/**
* Clone this node (return itself)
*
* @return {Node}
* @api private
*/
Node.prototype.clone = function(){
var err = new Error('node.clone is deprecated and will be removed in v2.0.0');
console.warn(err.stack);
return this;
};
Node.prototype.type = '';
},{}],21:[function(require,module,exports){
'use strict';
var Attrs = require('./attrs');
var Block = require('./block');
var inlineTags = require('../inline-tags');
/**
* Initialize a `Tag` node with the given tag `name` and optional `block`.
*
* @param {String} name
* @param {Block} block
* @api public
*/
var Tag = module.exports = function Tag(name, block) {
Attrs.call(this);
this.name = name;
this.block = block || new Block;
};
// Inherit from `Attrs`.
Tag.prototype = Object.create(Attrs.prototype);
Tag.prototype.constructor = Tag;
Tag.prototype.type = 'Tag';
/**
* Clone this tag.
*
* @return {Tag}
* @api private
*/
Tag.prototype.clone = function(){
var err = new Error('tag.clone is deprecated and will be removed in v2.0.0');
console.warn(err.stack);
var clone = new Tag(this.name, this.block.clone());
clone.line = this.line;
clone.attrs = this.attrs;
clone.textOnly = this.textOnly;
return clone;
};
/**
* Check if this tag is an inline tag.
*
* @return {Boolean}
* @api private
*/
Tag.prototype.isInline = function(){
return ~inlineTags.indexOf(this.name);
};
/**
* Check if this tag's contents can be inlined. Used for pretty printing.
*
* @return {Boolean}
* @api private
*/
Tag.prototype.canInline = function(){
var nodes = this.block.nodes;
function isInline(node){
// Recurse if the node is a block
if (node.isBlock) return node.nodes.every(isInline);
return node.isText || (node.isInline && node.isInline());
}
// Empty tag
if (!nodes.length) return true;
// Text-only or inline-only tag
if (1 == nodes.length) return isInline(nodes[0]);
// Multi-line inline-only tag
if (this.block.nodes.every(isInline)) {
for (var i = 1, len = nodes.length; i < len; ++i) {
if (nodes[i-1].isText && nodes[i].isText)
return false;
}
return true;
}
// Mixed tag
return false;
};
},{"../inline-tags":5,"./attrs":7,"./block":9}],22:[function(require,module,exports){
'use strict';
var Node = require('./node');
/**
* Initialize a `Text` node with optional `line`.
*
* @param {String} line
* @api public
*/
var Text = module.exports = function Text(line) {
this.val = line;
};
// Inherit from `Node`.
Text.prototype = Object.create(Node.prototype);
Text.prototype.constructor = Text;
Text.prototype.type = 'Text';
/**
* Flag as text.
*/
Text.prototype.isText = true;
},{"./node":20}],23:[function(require,module,exports){
'use strict';
var Lexer = require('./lexer');
var nodes = require('./nodes');
var utils = require('./utils');
var filters = require('./filters');
var path = require('path');
var constantinople = require('constantinople');
var parseJSExpression = require('character-parser').parseMax;
var extname = path.extname;
/**
* Initialize `Parser` with the given input `str` and `filename`.
*
* @param {String} str
* @param {String} filename
* @param {Object} options
* @api public
*/
var Parser = exports = module.exports = function Parser(str, filename, options){
//Strip any UTF-8 BOM off of the start of `str`, if it exists.
this.input = str.replace(/^\uFEFF/, '');
this.lexer = new Lexer(this.input, filename);
this.filename = filename;
this.blocks = {};
this.mixins = {};
this.options = options;
this.contexts = [this];
this.inMixin = 0;
this.dependencies = [];
this.inBlock = 0;
};
/**
* Parser prototype.
*/
Parser.prototype = {
/**
* Save original constructor
*/
constructor: Parser,
/**
* Push `parser` onto the context stack,
* or pop and return a `Parser`.
*/
context: function(parser){
if (parser) {
this.contexts.push(parser);
} else {
return this.contexts.pop();
}
},
/**
* Return the next token object.
*
* @return {Object}
* @api private
*/
advance: function(){
return this.lexer.advance();
},
/**
* Single token lookahead.
*
* @return {Object}
* @api private
*/
peek: function() {
return this.lookahead(1);
},
/**
* Return lexer lineno.
*
* @return {Number}
* @api private
*/
line: function() {
return this.lexer.lineno;
},
/**
* `n` token lookahead.
*
* @param {Number} n
* @return {Object}
* @api private
*/
lookahead: function(n){
return this.lexer.lookahead(n);
},
/**
* Parse input returning a string of js for evaluation.
*
* @return {String}
* @api public
*/
parse: function(){
var block = new nodes.Block, parser;
block.line = 0;
block.filename = this.filename;
while ('eos' != this.peek().type) {
if ('newline' == this.peek().type) {
this.advance();
} else {
var next = this.peek();
var expr = this.parseExpr();
expr.filename = expr.filename || this.filename;
expr.line = next.line;
block.push(expr);
}
}
if (parser = this.extending) {
this.context(parser);
var ast = parser.parse();
this.context();
// hoist mixins
for (var name in this.mixins)
ast.unshift(this.mixins[name]);
return ast;
}
if (!this.extending && !this.included && Object.keys(this.blocks).length){
var blocks = [];
utils.walkAST(block, function (node) {
if (node.type === 'Block' && node.name) {
blocks.push(node.name);
}
});
Object.keys(this.blocks).forEach(function (name) {
if (blocks.indexOf(name) === -1 && !this.blocks[name].isSubBlock) {
console.warn('Warning: Unexpected block "'
+ name
+ '" '
+ ' on line '
+ this.blocks[name].line
+ ' of '
+ (this.blocks[name].filename)
+ '. This block is never used. This warning will be an error in v2.0.0');
}
}.bind(this));
}
return block;
},
/**
* Expect the given type, or throw an exception.
*
* @param {String} type
* @api private
*/
expect: function(type){
if (this.peek().type === type) {
return this.advance();
} else {
throw new Error('expected "' + type + '", but got "' + this.peek().type + '"');
}
},
/**
* Accept the given `type`.
*
* @param {String} type
* @api private
*/
accept: function(type){
if (this.peek().type === type) {
return this.advance();
}
},
/**
* tag
* | doctype
* | mixin
* | include
* | filter
* | comment
* | text
* | each
* | code
* | yield
* | id
* | class
* | interpolation
*/
parseExpr: function(){
switch (this.peek().type) {
case 'tag':
return this.parseTag();
case 'mixin':
return this.parseMixin();
case 'block':
return this.parseBlock();
case 'mixin-block':
return this.parseMixinBlock();
case 'case':
return this.parseCase();
case 'extends':
return this.parseExtends();
case 'include':
return this.parseInclude();
case 'doctype':
return this.parseDoctype();
case 'filter':
return this.parseFilter();
case 'comment':
return this.parseComment();
case 'text':
return this.parseText();
case 'each':
return this.parseEach();
case 'code':
return this.parseCode();
case 'blockCode':
return this.parseBlockCode();
case 'call':
return this.parseCall();
case 'interpolation':
return this.parseInterpolation();
case 'yield':
this.advance();
var block = new nodes.Block;
block.yield = true;
return block;
case 'id':
case 'class':
var tok = this.advance();
this.lexer.defer(this.lexer.tok('tag', 'div'));
this.lexer.defer(tok);
return this.parseExpr();
default:
throw new Error('unexpected token "' + this.peek().type + '"');
}
},
/**
* Text
*/
parseText: function(){
var tok = this.expect('text');
var tokens = this.parseInlineTagsInText(tok.val);
if (tokens.length === 1) return tokens[0];
var node = new nodes.Block;
for (var i = 0; i < tokens.length; i++) {
node.push(tokens[i]);
};
return node;
},
/**
* ':' expr
* | block
*/
parseBlockExpansion: function(){
if (':' == this.peek().type) {
this.advance();
return new nodes.Block(this.parseExpr());
} else {
return this.block();
}
},
/**
* case
*/
parseCase: function(){
var val = this.expect('case').val;
var node = new nodes.Case(val);
node.line = this.line();
var block = new nodes.Block;
block.line = this.line();
block.filename = this.filename;
this.expect('indent');
while ('outdent' != this.peek().type) {
switch (this.peek().type) {
case 'comment':
case 'newline':
this.advance();
break;
case 'when':
block.push(this.parseWhen());
break;
case 'default':
block.push(this.parseDefault());
break;
default:
throw new Error('Unexpected token "' + this.peek().type
+ '", expected "when", "default" or "newline"');
}
}
this.expect('outdent');
node.block = block;
return node;
},
/**
* when
*/
parseWhen: function(){
var val = this.expect('when').val;
if (this.peek().type !== 'newline')
return new nodes.Case.When(val, this.parseBlockExpansion());
else
return new nodes.Case.When(val);
},
/**
* default
*/
parseDefault: function(){
this.expect('default');
return new nodes.Case.When('default', this.parseBlockExpansion());
},
/**
* code
*/
parseCode: function(afterIf){
var tok = this.expect('code');
var node = new nodes.Code(tok.val, tok.buffer, tok.escape);
var block;
node.line = this.line();
// throw an error if an else does not have an if
if (tok.isElse && !tok.hasIf) {
throw new Error('Unexpected else without if');
}
// handle block
block = 'indent' == this.peek().type;
if (block) {
node.block = this.block();
}
// handle missing block
if (tok.requiresBlock && !block) {
node.block = new nodes.Block();
}
// mark presense of if for future elses
if (tok.isIf && this.peek().isElse) {
this.peek().hasIf = true;
} else if (tok.isIf && this.peek().type === 'newline' && this.lookahead(2).isElse) {
this.lookahead(2).hasIf = true;
}
return node;
},
/**
* block code
*/
parseBlockCode: function(){
var tok = this.expect('blockCode');
var node;
var body = this.peek();
var text;
if (body.type === 'pipeless-text') {
this.advance();
text = body.val.join('\n');
} else {
text = '';
}
node = new nodes.Code(text, false, false);
return node;
},
/**
* comment
*/
parseComment: function(){
var tok = this.expect('comment');
var node;
var block;
if (block = this.parseTextBlock()) {
node = new nodes.BlockComment(tok.val, block, tok.buffer);
} else {
node = new nodes.Comment(tok.val, tok.buffer);
}
node.line = this.line();
return node;
},
/**
* doctype
*/
parseDoctype: function(){
var tok = this.expect('doctype');
var node = new nodes.Doctype(tok.val);
node.line = this.line();
return node;
},
/**
* filter attrs? text-block
*/
parseFilter: function(){
var tok = this.expect('filter');
var attrs = this.accept('attrs');
var block;
block = this.parseTextBlock() || new nodes.Block();
var options = {};
if (attrs) {
attrs.attrs.forEach(function (attribute) {
options[attribute.name] = constantinople.toConstant(attribute.val);
});
}
var node = new nodes.Filter(tok.val, block, options);
node.line = this.line();
return node;
},
/**
* each block
*/
parseEach: function(){
var tok = this.expect('each');
var node = new nodes.Each(tok.code, tok.val, tok.key);
node.line = this.line();
node.block = this.block();
if (this.peek().type == 'code' && this.peek().val == 'else') {
this.advance();
node.alternative = this.block();
}
return node;
},
/**
* Resolves a path relative to the template for use in
* includes and extends
*
* @param {String} path
* @param {String} purpose Used in error messages.
* @return {String}
* @api private
*/
resolvePath: function (path, purpose) {
var p = require('path');
var dirname = p.dirname;
var basename = p.basename;
var join = p.join;
if (path[0] !== '/' && !this.filename)
throw new Error('the "filename" option is required to use "' + purpose + '" with "relative" paths');
if (path[0] === '/' && !this.options.basedir)
throw new Error('the "basedir" option is required to use "' + purpose + '" with "absolute" paths');
path = join(path[0] === '/' ? this.options.basedir : dirname(this.filename), path);
if (basename(path).indexOf('.') === -1) path += '.jade';
return path;
},
/**
* 'extends' name
*/
parseExtends: function(){
var fs = require('fs');
var path = this.resolvePath(this.expect('extends').val.trim(), 'extends');
if ('.jade' != path.substr(-5)) path += '.jade';
this.dependencies.push(path);
var str = fs.readFileSync(path, 'utf8');
var parser = new this.constructor(str, path, this.options);
parser.dependencies = this.dependencies;
parser.blocks = this.blocks;
parser.included = this.included;
parser.contexts = this.contexts;
this.extending = parser;
// TODO: null node
return new nodes.Literal('');
},
/**
* 'block' name block
*/
parseBlock: function(){
var block = this.expect('block');
var mode = block.mode;
var name = block.val.trim();
var line = block.line;
this.inBlock++;
block = 'indent' == this.peek().type
? this.block()
: new nodes.Block(new nodes.Literal(''));
this.inBlock--;
block.name = name;
block.line = line;
var prev = this.blocks[name] || {prepended: [], appended: []}
if (prev.mode === 'replace') return this.blocks[name] = prev;
var allNodes = prev.prepended.concat(block.nodes).concat(prev.appended);
switch (mode) {
case 'append':
prev.appended = prev.parser === this ?
prev.appended.concat(block.nodes) :
block.nodes.concat(prev.appended);
break;
case 'prepend':
prev.prepended = prev.parser === this ?
block.nodes.concat(prev.prepended) :
prev.prepended.concat(block.nodes);
break;
}
block.nodes = allNodes;
block.appended = prev.appended;
block.prepended = prev.prepended;
block.mode = mode;
block.parser = this;
block.isSubBlock = this.inBlock > 0;
return this.blocks[name] = block;
},
parseMixinBlock: function () {
var block = this.expect('mixin-block');
if (!this.inMixin) {
throw new Error('Anonymous blocks are not allowed unless they are part of a mixin.');
}
return new nodes.MixinBlock();
},
/**
* include block?
*/
parseInclude: function(){
var fs = require('fs');
var tok = this.expect('include');
var path = this.resolvePath(tok.val.trim(), 'include');
this.dependencies.push(path);
// has-filter
if (tok.filter) {
var str = fs.readFileSync(path, 'utf8').replace(/\r/g, '');
var options = {filename: path};
if (tok.attrs) {
tok.attrs.attrs.forEach(function (attribute) {
options[attribute.name] = constantinople.toConstant(attribute.val);
});
}
str = filters(tok.filter, str, options);
return new nodes.Literal(str);
}
// non-jade
if ('.jade' != path.substr(-5)) {
var str = fs.readFileSync(path, 'utf8').replace(/\r/g, '');
return new nodes.Literal(str);
}
var str = fs.readFileSync(path, 'utf8');
var parser = new this.constructor(str, path, this.options);
parser.dependencies = this.dependencies;
parser.blocks = utils.merge({}, this.blocks);
parser.included = true;
parser.mixins = this.mixins;
this.context(parser);
var ast = parser.parse();
this.context();
ast.filename = path;
if ('indent' == this.peek().type) {
ast.includeBlock().push(this.block());
}
return ast;
},
/**
* call ident block
*/
parseCall: function(){
var tok = this.expect('call');
var name = tok.val;
var args = tok.args;
var mixin = new nodes.Mixin(name, args, new nodes.Block, true);
this.tag(mixin);
if (mixin.code) {
mixin.block.push(mixin.code);
mixin.code = null;
}
if (mixin.block.isEmpty()) mixin.block = null;
return mixin;
},
/**
* mixin block
*/
parseMixin: function(){
var tok = this.expect('mixin');
var name = tok.val;
var args = tok.args;
var mixin;
// definition
if ('indent' == this.peek().type) {
this.inMixin++;
mixin = new nodes.Mixin(name, args, this.block(), false);
this.mixins[name] = mixin;
this.inMixin--;
return mixin;
// call
} else {
return new nodes.Mixin(name, args, null, true);
}
},
parseInlineTagsInText: function (str) {
var line = this.line();
var match = /(\\)?#\[((?:.|\n)*)$/.exec(str);
if (match) {
if (match[1]) { // escape
var text = new nodes.Text(str.substr(0, match.index) + '#[');
text.line = line;
var rest = this.parseInlineTagsInText(match[2]);
if (rest[0].type === 'Text') {
text.val += rest[0].val;
rest.shift();
}
return [text].concat(rest);
} else {
var text = new nodes.Text(str.substr(0, match.index));
text.line = line;
var buffer = [text];
var rest = match[2];
var range = parseJSExpression(rest);
var inner = new Parser(range.src, this.filename, this.options);
buffer.push(inner.parse());
return buffer.concat(this.parseInlineTagsInText(rest.substr(range.end + 1)));
}
} else {
var text = new nodes.Text(str);
text.line = line;
return [text];
}
},
/**
* indent (text | newline)* outdent
*/
parseTextBlock: function(){
var block = new nodes.Block;
block.line = this.line();
var body = this.peek();
if (body.type !== 'pipeless-text') return;
this.advance();
block.nodes = body.val.reduce(function (accumulator, text) {
return accumulator.concat(this.parseInlineTagsInText(text));
}.bind(this), []);
return block;
},
/**
* indent expr* outdent
*/
block: function(){
var block = new nodes.Block;
block.line = this.line();
block.filename = this.filename;
this.expect('indent');
while ('outdent' != this.peek().type) {
if ('newline' == this.peek().type) {
this.advance();
} else {
var expr = this.parseExpr();
expr.filename = this.filename;
block.push(expr);
}
}
this.expect('outdent');
return block;
},
/**
* interpolation (attrs | class | id)* (text | code | ':')? newline* block?
*/
parseInterpolation: function(){
var tok = this.advance();
var tag = new nodes.Tag(tok.val);
tag.buffer = true;
return this.tag(tag);
},
/**
* tag (attrs | class | id)* (text | code | ':')? newline* block?
*/
parseTag: function(){
var tok = this.advance();
var tag = new nodes.Tag(tok.val);
tag.selfClosing = tok.selfClosing;
return this.tag(tag);
},
/**
* Parse tag.
*/
tag: function(tag){
tag.line = this.line();
var seenAttrs = false;
// (attrs | class | id)*
out:
while (true) {
switch (this.peek().type) {
case 'id':
case 'class':
var tok = this.advance();
tag.setAttribute(tok.type, "'" + tok.val + "'");
continue;
case 'attrs':
if (seenAttrs) {
console.warn(this.filename + ', line ' + this.peek().line + ':\nYou should not have jade tags with multiple attributes.');
}
seenAttrs = true;
var tok = this.advance();
var attrs = tok.attrs;
if (tok.selfClosing) tag.selfClosing = true;
for (var i = 0; i < attrs.length; i++) {
tag.setAttribute(attrs[i].name, attrs[i].val, attrs[i].escaped);
}
continue;
case '&attributes':
var tok = this.advance();
tag.addAttributes(tok.val);
break;
default:
break out;
}
}
// check immediate '.'
if ('dot' == this.peek().type) {
tag.textOnly = true;
this.advance();
}
// (text | code | ':')?
switch (this.peek().type) {
case 'text':
tag.block.push(this.parseText());
break;
case 'code':
tag.code = this.parseCode();
break;
case ':':
this.advance();
tag.block = new nodes.Block;
tag.block.push(this.parseExpr());
break;
case 'newline':
case 'indent':
case 'outdent':
case 'eos':
case 'pipeless-text':
break;
default:
throw new Error('Unexpected token `' + this.peek().type + '` expected `text`, `code`, `:`, `newline` or `eos`')
}
// newline*
while ('newline' == this.peek().type) this.advance();
// block?
if (tag.textOnly) {
tag.block = this.parseTextBlock() || new nodes.Block();
} else if ('indent' == this.peek().type) {
var block = this.block();
for (var i = 0, len = block.nodes.length; i < len; ++i) {
tag.block.push(block.nodes[i]);
}
}
return tag;
}
};
},{"./filters":4,"./lexer":6,"./nodes":16,"./utils":25,"character-parser":29,"constantinople":30,"fs":26,"path":27}],24:[function(require,module,exports){
'use strict';
/**
* Merge two attribute objects giving precedence
* to values in object `b`. Classes are special-cased
* allowing for arrays and merging/joining appropriately
* resulting in a string.
*
* @param {Object} a
* @param {Object} b
* @return {Object} a
* @api private
*/
exports.merge = function merge(a, b) {
if (arguments.length === 1) {
var attrs = a[0];
for (var i = 1; i < a.length; i++) {
attrs = merge(attrs, a[i]);
}
return attrs;
}
var ac = a['class'];
var bc = b['class'];
if (ac || bc) {
ac = ac || [];
bc = bc || [];
if (!Array.isArray(ac)) ac = [ac];
if (!Array.isArray(bc)) bc = [bc];
a['class'] = ac.concat(bc).filter(nulls);
}
for (var key in b) {
if (key != 'class') {
a[key] = b[key];
}
}
return a;
};
/**
* Filter null `val`s.
*
* @param {*} val
* @return {Boolean}
* @api private
*/
function nulls(val) {
return val != null && val !== '';
}
/**
* join array as classes.
*
* @param {*} val
* @return {String}
*/
exports.joinClasses = joinClasses;
function joinClasses(val) {
return (Array.isArray(val) ? val.map(joinClasses) :
(val && typeof val === 'object') ? Object.keys(val).filter(function (key) { return val[key]; }) :
[val]).filter(nulls).join(' ');
}
/**
* Render the given classes.
*
* @param {Array} classes
* @param {Array.<Boolean>} escaped
* @return {String}
*/
exports.cls = function cls(classes, escaped) {
var buf = [];
for (var i = 0; i < classes.length; i++) {
if (escaped && escaped[i]) {
buf.push(exports.escape(joinClasses([classes[i]])));
} else {
buf.push(joinClasses(classes[i]));
}
}
var text = joinClasses(buf);
if (text.length) {
return ' class="' + text + '"';
} else {
return '';
}
};
exports.style = function (val) {
if (val && typeof val === 'object') {
return Object.keys(val).map(function (style) {
return style + ':' + val[style];
}).join(';');
} else {
return val;
}
};
/**
* Render the given attribute.
*
* @param {String} key
* @param {String} val
* @param {Boolean} escaped
* @param {Boolean} terse
* @return {String}
*/
exports.attr = function attr(key, val, escaped, terse) {
if (key === 'style') {
val = exports.style(val);
}
if ('boolean' == typeof val || null == val) {
if (val) {
return ' ' + (terse ? key : key + '="' + key + '"');
} else {
return '';
}
} else if (0 == key.indexOf('data') && 'string' != typeof val) {
if (JSON.stringify(val).indexOf('&') !== -1) {
console.warn('Since Jade 2.0.0, ampersands (`&`) in data attributes ' +
'will be escaped to `&amp;`');
};
if (val && typeof val.toISOString === 'function') {
console.warn('Jade will eliminate the double quotes around dates in ' +
'ISO form after 2.0.0');
}
return ' ' + key + "='" + JSON.stringify(val).replace(/'/g, '&apos;') + "'";
} else if (escaped) {
if (val && typeof val.toISOString === 'function') {
console.warn('Jade will stringify dates in ISO form after 2.0.0');
}
return ' ' + key + '="' + exports.escape(val) + '"';
} else {
if (val && typeof val.toISOString === 'function') {
console.warn('Jade will stringify dates in ISO form after 2.0.0');
}
return ' ' + key + '="' + val + '"';
}
};
/**
* Render the given attributes object.
*
* @param {Object} obj
* @param {Object} escaped
* @return {String}
*/
exports.attrs = function attrs(obj, terse){
var buf = [];
var keys = Object.keys(obj);
if (keys.length) {
for (var i = 0; i < keys.length; ++i) {
var key = keys[i]
, val = obj[key];
if ('class' == key) {
if (val = joinClasses(val)) {
buf.push(' ' + key + '="' + val + '"');
}
} else {
buf.push(exports.attr(key, val, false, terse));
}
}
}
return buf.join('');
};
/**
* Escape the given string of `html`.
*
* @param {String} html
* @return {String}
* @api private
*/
var jade_encode_html_rules = {
'&': '&amp;',
'<': '&lt;',
'>': '&gt;',
'"': '&quot;'
};
var jade_match_html = /[&<>"]/g;
function jade_encode_char(c) {
return jade_encode_html_rules[c] || c;
}
exports.escape = jade_escape;
function jade_escape(html){
var result = String(html).replace(jade_match_html, jade_encode_char);
if (result === '' + html) return html;
else return result;
};
/**
* Re-throw the given `err` in context to the
* the jade in `filename` at the given `lineno`.
*
* @param {Error} err
* @param {String} filename
* @param {String} lineno
* @api private
*/
exports.rethrow = function rethrow(err, filename, lineno, str){
if (!(err instanceof Error)) throw err;
if ((typeof window != 'undefined' || !filename) && !str) {
err.message += ' on line ' + lineno;
throw err;
}
try {
str = str || require('fs').readFileSync(filename, 'utf8')
} catch (ex) {
rethrow(err, null, lineno)
}
var context = 3
, lines = str.split('\n')
, start = Math.max(lineno - context, 0)
, end = Math.min(lines.length, lineno + context);
// Error context
var context = lines.slice(start, end).map(function(line, i){
var curr = i + start + 1;
return (curr == lineno ? ' > ' : ' ')
+ curr
+ '| '
+ line;
}).join('\n');
// Alter exception message
err.path = filename;
err.message = (filename || 'Jade') + ':' + lineno
+ '\n' + context + '\n\n' + err.message;
throw err;
};
exports.DebugItem = function DebugItem(lineno, filename) {
this.lineno = lineno;
this.filename = filename;
}
},{"fs":26}],25:[function(require,module,exports){
'use strict';
/**
* Merge `b` into `a`.
*
* @param {Object} a
* @param {Object} b
* @return {Object}
* @api public
*/
exports.merge = function(a, b) {
for (var key in b) a[key] = b[key];
return a;
};
exports.stringify = function(str) {
return JSON.stringify(str)
.replace(/\u2028/g, '\\u2028')
.replace(/\u2029/g, '\\u2029');
};
exports.walkAST = function walkAST(ast, before, after) {
before && before(ast);
switch (ast.type) {
case 'Block':
ast.nodes.forEach(function (node) {
walkAST(node, before, after);
});
break;
case 'Case':
case 'Each':
case 'Mixin':
case 'Tag':
case 'When':
case 'Code':
ast.block && walkAST(ast.block, before, after);
break;
case 'Attrs':
case 'BlockComment':
case 'Comment':
case 'Doctype':
case 'Filter':
case 'Literal':
case 'MixinBlock':
case 'Text':
break;
default:
throw new Error('Unexpected node type ' + ast.type);
break;
}
after && after(ast);
};
},{}],26:[function(require,module,exports){
},{}],27:[function(require,module,exports){
(function (process){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// resolves . and .. elements in a path array with directory names there
// must be no slashes, empty elements, or device names (c:\) in the array
// (so also no leading and trailing slashes - it does not distinguish
// relative and absolute paths)
function normalizeArray(parts, allowAboveRoot) {
// if the path tries to go above the root, `up` ends up > 0
var up = 0;
for (var i = parts.length - 1; i >= 0; i--) {
var last = parts[i];
if (last === '.') {
parts.splice(i, 1);
} else if (last === '..') {
parts.splice(i, 1);
up++;
} else if (up) {
parts.splice(i, 1);
up--;
}
}
// if the path is allowed to go above the root, restore leading ..s
if (allowAboveRoot) {
for (; up--; up) {
parts.unshift('..');
}
}
return parts;
}
// Split a filename into [root, dir, basename, ext], unix version
// 'root' is just a slash, or nothing.
var splitPathRe =
/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
var splitPath = function(filename) {
return splitPathRe.exec(filename).slice(1);
};
// path.resolve([from ...], to)
// posix version
exports.resolve = function() {
var resolvedPath = '',
resolvedAbsolute = false;
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
var path = (i >= 0) ? arguments[i] : process.cwd();
// Skip empty and invalid entries
if (typeof path !== 'string') {
throw new TypeError('Arguments to path.resolve must be strings');
} else if (!path) {
continue;
}
resolvedPath = path + '/' + resolvedPath;
resolvedAbsolute = path.charAt(0) === '/';
}
// At this point the path should be resolved to a full absolute path, but
// handle relative paths to be safe (might happen when process.cwd() fails)
// Normalize the path
resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
return !!p;
}), !resolvedAbsolute).join('/');
return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
};
// path.normalize(path)
// posix version
exports.normalize = function(path) {
var isAbsolute = exports.isAbsolute(path),
trailingSlash = substr(path, -1) === '/';
// Normalize the path
path = normalizeArray(filter(path.split('/'), function(p) {
return !!p;
}), !isAbsolute).join('/');
if (!path && !isAbsolute) {
path = '.';
}
if (path && trailingSlash) {
path += '/';
}
return (isAbsolute ? '/' : '') + path;
};
// posix version
exports.isAbsolute = function(path) {
return path.charAt(0) === '/';
};
// posix version
exports.join = function() {
var paths = Array.prototype.slice.call(arguments, 0);
return exports.normalize(filter(paths, function(p, index) {
if (typeof p !== 'string') {
throw new TypeError('Arguments to path.join must be strings');
}
return p;
}).join('/'));
};
// path.relative(from, to)
// posix version
exports.relative = function(from, to) {
from = exports.resolve(from).substr(1);
to = exports.resolve(to).substr(1);
function trim(arr) {
var start = 0;
for (; start < arr.length; start++) {
if (arr[start] !== '') break;
}
var end = arr.length - 1;
for (; end >= 0; end--) {
if (arr[end] !== '') break;
}
if (start > end) return [];
return arr.slice(start, end - start + 1);
}
var fromParts = trim(from.split('/'));
var toParts = trim(to.split('/'));
var length = Math.min(fromParts.length, toParts.length);
var samePartsLength = length;
for (var i = 0; i < length; i++) {
if (fromParts[i] !== toParts[i]) {
samePartsLength = i;
break;
}
}
var outputParts = [];
for (var i = samePartsLength; i < fromParts.length; i++) {
outputParts.push('..');
}
outputParts = outputParts.concat(toParts.slice(samePartsLength));
return outputParts.join('/');
};
exports.sep = '/';
exports.delimiter = ':';
exports.dirname = function(path) {
var result = splitPath(path),
root = result[0],
dir = result[1];
if (!root && !dir) {
// No dirname whatsoever
return '.';
}
if (dir) {
// It has a dirname, strip trailing slash
dir = dir.substr(0, dir.length - 1);
}
return root + dir;
};
exports.basename = function(path, ext) {
var f = splitPath(path)[2];
// TODO: make this comparison case-insensitive on windows?
if (ext && f.substr(-1 * ext.length) === ext) {
f = f.substr(0, f.length - ext.length);
}
return f;
};
exports.extname = function(path) {
return splitPath(path)[3];
};
function filter (xs, f) {
if (xs.filter) return xs.filter(f);
var res = [];
for (var i = 0; i < xs.length; i++) {
if (f(xs[i], i, xs)) res.push(xs[i]);
}
return res;
}
// String.prototype.substr - negative index don't work in IE8
var substr = 'ab'.substr(-1) === 'b'
? function (str, start, len) { return str.substr(start, len) }
: function (str, start, len) {
if (start < 0) start = str.length + start;
return str.substr(start, len);
}
;
}).call(this,require('_process'))
},{"_process":28}],28:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;
function cleanUpNextTick() {
draining = false;
if (currentQueue.length) {
queue = currentQueue.concat(queue);
} else {
queueIndex = -1;
}
if (queue.length) {
drainQueue();
}
}
function drainQueue() {
if (draining) {
return;
}
var timeout = setTimeout(cleanUpNextTick);
draining = true;
var len = queue.length;
while(len) {
currentQueue = queue;
queue = [];
while (++queueIndex < len) {
currentQueue[queueIndex].run();
}
queueIndex = -1;
len = queue.length;
}
currentQueue = null;
draining = false;
clearTimeout(timeout);
}
process.nextTick = function (fun) {
var args = new Array(arguments.length - 1);
if (arguments.length > 1) {
for (var i = 1; i < arguments.length; i++) {
args[i - 1] = arguments[i];
}
}
queue.push(new Item(fun, args));
if (queue.length === 1 && !draining) {
setTimeout(drainQueue, 0);
}
};
// v8 likes predictible objects
function Item(fun, array) {
this.fun = fun;
this.array = array;
}
Item.prototype.run = function () {
this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};
function noop() {}
process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.binding = function (name) {
throw new Error('process.binding is not supported');
};
// TODO(shtylman)
process.cwd = function () { return '/' };
process.chdir = function (dir) {
throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };
},{}],29:[function(require,module,exports){
exports = (module.exports = parse);
exports.parse = parse;
function parse(src, state, options) {
options = options || {};
state = state || exports.defaultState();
var start = options.start || 0;
var end = options.end || src.length;
var index = start;
while (index < end) {
if (state.roundDepth < 0 || state.curlyDepth < 0 || state.squareDepth < 0) {
throw new SyntaxError('Mismatched Bracket: ' + src[index - 1]);
}
exports.parseChar(src[index++], state);
}
return state;
}
exports.parseMax = parseMax;
function parseMax(src, options) {
options = options || {};
var start = options.start || 0;
var index = start;
var state = exports.defaultState();
while (state.roundDepth >= 0 && state.curlyDepth >= 0 && state.squareDepth >= 0) {
if (index >= src.length) {
throw new Error('The end of the string was reached with no closing bracket found.');
}
exports.parseChar(src[index++], state);
}
var end = index - 1;
return {
start: start,
end: end,
src: src.substring(start, end)
};
}
exports.parseUntil = parseUntil;
function parseUntil(src, delimiter, options) {
options = options || {};
var includeLineComment = options.includeLineComment || false;
var start = options.start || 0;
var index = start;
var state = exports.defaultState();
while (state.isString() || state.regexp || state.blockComment ||
(!includeLineComment && state.lineComment) || !startsWith(src, delimiter, index)) {
exports.parseChar(src[index++], state);
}
var end = index;
return {
start: start,
end: end,
src: src.substring(start, end)
};
}
exports.parseChar = parseChar;
function parseChar(character, state) {
if (character.length !== 1) throw new Error('Character must be a string of length 1');
state = state || exports.defaultState();
state.src = state.src || '';
state.src += character;
var wasComment = state.blockComment || state.lineComment;
var lastChar = state.history ? state.history[0] : '';
if (state.regexpStart) {
if (character === '/' || character == '*') {
state.regexp = false;
}
state.regexpStart = false;
}
if (state.lineComment) {
if (character === '\n') {
state.lineComment = false;
}
} else if (state.blockComment) {
if (state.lastChar === '*' && character === '/') {
state.blockComment = false;
}
} else if (state.singleQuote) {
if (character === '\'' && !state.escaped) {
state.singleQuote = false;
} else if (character === '\\' && !state.escaped) {
state.escaped = true;
} else {
state.escaped = false;
}
} else if (state.doubleQuote) {
if (character === '"' && !state.escaped) {
state.doubleQuote = false;
} else if (character === '\\' && !state.escaped) {
state.escaped = true;
} else {
state.escaped = false;
}
} else if (state.regexp) {
if (character === '/' && !state.escaped) {
state.regexp = false;
} else if (character === '\\' && !state.escaped) {
state.escaped = true;
} else {
state.escaped = false;
}
} else if (lastChar === '/' && character === '/') {
state.history = state.history.substr(1);
state.lineComment = true;
} else if (lastChar === '/' && character === '*') {
state.history = state.history.substr(1);
state.blockComment = true;
} else if (character === '/' && isRegexp(state.history)) {
state.regexp = true;
state.regexpStart = true;
} else if (character === '\'') {
state.singleQuote = true;
} else if (character === '"') {
state.doubleQuote = true;
} else if (character === '(') {
state.roundDepth++;
} else if (character === ')') {
state.roundDepth--;
} else if (character === '{') {
state.curlyDepth++;
} else if (character === '}') {
state.curlyDepth--;
} else if (character === '[') {
state.squareDepth++;
} else if (character === ']') {
state.squareDepth--;
}
if (!state.blockComment && !state.lineComment && !wasComment) state.history = character + state.history;
state.lastChar = character; // store last character for ending block comments
return state;
}
exports.defaultState = function () { return new State() };
function State() {
this.lineComment = false;
this.blockComment = false;
this.singleQuote = false;
this.doubleQuote = false;
this.regexp = false;
this.escaped = false;
this.roundDepth = 0;
this.curlyDepth = 0;
this.squareDepth = 0;
this.history = ''
this.lastChar = ''
}
State.prototype.isString = function () {
return this.singleQuote || this.doubleQuote;
}
State.prototype.isComment = function () {
return this.lineComment || this.blockComment;
}
State.prototype.isNesting = function () {
return this.isString() || this.isComment() || this.regexp || this.roundDepth > 0 || this.curlyDepth > 0 || this.squareDepth > 0
}
function startsWith(str, start, i) {
return str.substr(i || 0, start.length) === start;
}
exports.isPunctuator = isPunctuator
function isPunctuator(c) {
if (!c) return true; // the start of a string is a punctuator
var code = c.charCodeAt(0)
switch (code) {
case 46: // . dot
case 40: // ( open bracket
case 41: // ) close bracket
case 59: // ; semicolon
case 44: // , comma
case 123: // { open curly brace
case 125: // } close curly brace
case 91: // [
case 93: // ]
case 58: // :
case 63: // ?
case 126: // ~
case 37: // %
case 38: // &
case 42: // *:
case 43: // +
case 45: // -
case 47: // /
case 60: // <
case 62: // >
case 94: // ^
case 124: // |
case 33: // !
case 61: // =
return true;
default:
return false;
}
}
exports.isKeyword = isKeyword
function isKeyword(id) {
return (id === 'if') || (id === 'in') || (id === 'do') || (id === 'var') || (id === 'for') || (id === 'new') ||
(id === 'try') || (id === 'let') || (id === 'this') || (id === 'else') || (id === 'case') ||
(id === 'void') || (id === 'with') || (id === 'enum') || (id === 'while') || (id === 'break') || (id === 'catch') ||
(id === 'throw') || (id === 'const') || (id === 'yield') || (id === 'class') || (id === 'super') ||
(id === 'return') || (id === 'typeof') || (id === 'delete') || (id === 'switch') || (id === 'export') ||
(id === 'import') || (id === 'default') || (id === 'finally') || (id === 'extends') || (id === 'function') ||
(id === 'continue') || (id === 'debugger') || (id === 'package') || (id === 'private') || (id === 'interface') ||
(id === 'instanceof') || (id === 'implements') || (id === 'protected') || (id === 'public') || (id === 'static') ||
(id === 'yield') || (id === 'let');
}
function isRegexp(history) {
//could be start of regexp or divide sign
history = history.replace(/^\s*/, '');
//unless its an `if`, `while`, `for` or `with` it's a divide, so we assume it's a divide
if (history[0] === ')') return false;
//unless it's a function expression, it's a regexp, so we assume it's a regexp
if (history[0] === '}') return true;
//any punctuation means it's a regexp
if (isPunctuator(history[0])) return true;
//if the last thing was a keyword then it must be a regexp (e.g. `typeof /foo/`)
if (/^\w+\b/.test(history) && isKeyword(/^\w+\b/.exec(history)[0].split('').reverse().join(''))) return true;
return false;
}
},{}],30:[function(require,module,exports){
'use strict'
var detect = require('acorn-globals');
var lastSRC = '(null)';
var lastRes = true;
var lastConstants = undefined;
module.exports = isConstant;
function isConstant(src, constants) {
src = '(' + src + ')';
if (lastSRC === src && lastConstants === constants) return lastRes;
lastSRC = src;
lastConstants = constants;
try {
isExpression(src);
return lastRes = (detect(src).filter(function (key) {
return !constants || !(key.name in constants);
}).length === 0);
} catch (ex) {
return lastRes = false;
}
}
isConstant.isConstant = isConstant;
isConstant.toConstant = toConstant;
function toConstant(src, constants) {
if (!isConstant(src, constants)) throw new Error(JSON.stringify(src) + ' is not constant.');
return Function(Object.keys(constants || {}).join(','), 'return (' + src + ')').apply(null, Object.keys(constants || {}).map(function (key) {
return constants[key];
}));
}
function isExpression(src) {
try {
eval('throw "STOP"; (function () { return (' + src + '); })()');
return false;
}
catch (err) {
return err === 'STOP';
}
}
},{"acorn-globals":31}],31:[function(require,module,exports){
'use strict';
var acorn = require('acorn');
var walk = require('acorn/dist/walk');
// polyfill for https://github.com/marijnh/acorn/pull/231
walk.base.ExportNamedDeclaration = walk.base.ExportDefaultDeclaration = function (node, st, c) {
return c(node.declaration, st);
};
walk.base.ImportDefaultSpecifier = walk.base.ImportNamespaceSpecifier = function () {};
function isScope(node) {
return node.type === 'FunctionExpression' || node.type === 'FunctionDeclaration' || node.type === 'Program';
}
function isBlockScope(node) {
return node.type === 'BlockStatement' || isScope(node);
}
function declaresArguments(node) {
return node.type === 'FunctionExpression' || node.type === 'FunctionDeclaration' || node.type === 'ArrowFunction';
}
function declaresThis(node) {
return node.type === 'FunctionExpression' || node.type === 'FunctionDeclaration';
}
function reallyParse(source) {
try {
return acorn.parse(source, {
ecmaVersion: 6,
allowReturnOutsideFunction: true,
sourceType: 'module'
});
} catch (ex) {
if (ex.name !== 'SyntaxError') {
throw ex;
}
try {
return acorn.parse(source, {
ecmaVersion: 6,
allowReturnOutsideFunction: true
});
} catch (ex) {
if (ex.name !== 'SyntaxError') {
throw ex;
}
return acorn.parse(source, {
ecmaVersion: 5,
allowReturnOutsideFunction: true
});
}
}
}
module.exports = findGlobals;
module.exports.parse = reallyParse;
function findGlobals(source) {
var globals = [];
var ast = typeof source === 'string' ?
ast = reallyParse(source) :
source;
if (!(ast && typeof ast === 'object' && ast.type === 'Program')) {
throw new TypeError('Source must be either a string of JavaScript or an acorn AST');
}
var declareFunction = function (node) {
var fn = node;
fn.locals = fn.locals || {};
node.params.forEach(function (node) {
fn.locals[node.name] = true;
});
if (node.id) {
fn.locals[node.id.name] = true;
}
}
walk.ancestor(ast, {
'VariableDeclaration': function (node, parents) {
var parent = null;
for (var i = parents.length - 1; i >= 0 && parent === null; i--) {
if (node.kind === 'var' ? isScope(parents[i]) : isBlockScope(parents[i])) {
parent = parents[i];
}
}
parent.locals = parent.locals || {};
node.declarations.forEach(function (declaration) {
parent.locals[declaration.id.name] = true;
});
},
'FunctionDeclaration': function (node, parents) {
var parent = null;
for (var i = parents.length - 2; i >= 0 && parent === null; i--) {
if (isScope(parents[i])) {
parent = parents[i];
}
}
parent.locals = parent.locals || {};
parent.locals[node.id.name] = true;
declareFunction(node);
},
'Function': declareFunction,
'TryStatement': function (node) {
node.handler.body.locals = node.handler.body.locals || {};
node.handler.body.locals[node.handler.param.name] = true;
},
'ImportDefaultSpecifier': function (node) {
if (node.local.type === 'Identifier') {
ast.locals = ast.locals || {};
ast.locals[node.local.name] = true;
}
},
'ImportSpecifier': function (node) {
var id = node.local ? node.local : node.imported;
if (id.type === 'Identifier') {
ast.locals = ast.locals || {};
ast.locals[id.name] = true;
}
},
'ImportNamespaceSpecifier': function (node) {
if (node.local.type === 'Identifier') {
ast.locals = ast.locals || {};
ast.locals[node.local.name] = true;
}
}
});
walk.ancestor(ast, {
'Identifier': function (node, parents) {
var name = node.name;
if (name === 'undefined') return;
for (var i = 0; i < parents.length; i++) {
if (name === 'arguments' && declaresArguments(parents[i])) {
return;
}
if (parents[i].locals && name in parents[i].locals) {
return;
}
}
node.parents = parents;
globals.push(node);
},
ThisExpression: function (node, parents) {
for (var i = 0; i < parents.length; i++) {
if (declaresThis(parents[i])) {
return;
}
}
node.parents = parents;
globals.push(node);
}
});
var groupedGlobals = {};
globals.forEach(function (node) {
groupedGlobals[node.name] = (groupedGlobals[node.name] || []);
groupedGlobals[node.name].push(node);
});
return Object.keys(groupedGlobals).sort().map(function (name) {
return {name: name, nodes: groupedGlobals[name]};
});
}
},{"acorn":32,"acorn/dist/walk":33}],32:[function(require,module,exports){
(function (global){
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.acorn = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
// The main exported interface (under `self.acorn` when in the
// browser) is a `parse` function that takes a code string and
// returns an abstract syntax tree as specified by [Mozilla parser
// API][api].
//
// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
"use strict";
exports.parse = parse;
// This function tries to parse a single expression at a given
// offset in a string. Useful for parsing mixed-language formats
// that embed JavaScript expressions.
exports.parseExpressionAt = parseExpressionAt;
// Acorn is organized as a tokenizer and a recursive-descent parser.
// The `tokenize` export provides an interface to the tokenizer.
exports.tokenizer = tokenizer;
exports.__esModule = true;
// Acorn is a tiny, fast JavaScript parser written in JavaScript.
//
// Acorn was written by Marijn Haverbeke, Ingvar Stepanyan, and
// various contributors and released under an MIT license.
//
// Git repositories for Acorn are available at
//
// http://marijnhaverbeke.nl/git/acorn
// https://github.com/marijnh/acorn.git
//
// Please use the [github bug tracker][ghbt] to report issues.
//
// [ghbt]: https://github.com/marijnh/acorn/issues
//
// This file defines the main parser interface. The library also comes
// with a [error-tolerant parser][dammit] and an
// [abstract syntax tree walker][walk], defined in other files.
//
// [dammit]: acorn_loose.js
// [walk]: util/walk.js
var _state = _dereq_("./state");
var Parser = _state.Parser;
var _options = _dereq_("./options");
var getOptions = _options.getOptions;
_dereq_("./parseutil");
_dereq_("./statement");
_dereq_("./lval");
_dereq_("./expression");
exports.Parser = _state.Parser;
exports.plugins = _state.plugins;
exports.defaultOptions = _options.defaultOptions;
var _location = _dereq_("./location");
exports.SourceLocation = _location.SourceLocation;
exports.getLineInfo = _location.getLineInfo;
exports.Node = _dereq_("./node").Node;
var _tokentype = _dereq_("./tokentype");
exports.TokenType = _tokentype.TokenType;
exports.tokTypes = _tokentype.types;
var _tokencontext = _dereq_("./tokencontext");
exports.TokContext = _tokencontext.TokContext;
exports.tokContexts = _tokencontext.types;
var _identifier = _dereq_("./identifier");
exports.isIdentifierChar = _identifier.isIdentifierChar;
exports.isIdentifierStart = _identifier.isIdentifierStart;
exports.Token = _dereq_("./tokenize").Token;
var _whitespace = _dereq_("./whitespace");
exports.isNewLine = _whitespace.isNewLine;
exports.lineBreak = _whitespace.lineBreak;
exports.lineBreakG = _whitespace.lineBreakG;
var version = "1.2.2";exports.version = version;
function parse(input, options) {
var p = parser(options, input);
var startPos = p.pos,
startLoc = p.options.locations && p.curPosition();
p.nextToken();
return p.parseTopLevel(p.options.program || p.startNodeAt(startPos, startLoc));
}
function parseExpressionAt(input, pos, options) {
var p = parser(options, input, pos);
p.nextToken();
return p.parseExpression();
}
function tokenizer(input, options) {
return parser(options, input);
}
function parser(options, input) {
return new Parser(getOptions(options), String(input));
}
},{"./expression":6,"./identifier":7,"./location":8,"./lval":9,"./node":10,"./options":11,"./parseutil":12,"./state":13,"./statement":14,"./tokencontext":15,"./tokenize":16,"./tokentype":17,"./whitespace":19}],2:[function(_dereq_,module,exports){
if (typeof Object.create === 'function') {
// implementation from standard node.js 'util' module
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
ctor.prototype = Object.create(superCtor.prototype, {
constructor: {
value: ctor,
enumerable: false,
writable: true,
configurable: true
}
});
};
} else {
// old school shim for old browsers
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
var TempCtor = function () {}
TempCtor.prototype = superCtor.prototype
ctor.prototype = new TempCtor()
ctor.prototype.constructor = ctor
}
}
},{}],3:[function(_dereq_,module,exports){
// shim for using process in browser
var process = module.exports = {};
var queue = [];
var draining = false;
function drainQueue() {
if (draining) {
return;
}
draining = true;
var currentQueue;
var len = queue.length;
while(len) {
currentQueue = queue;
queue = [];
var i = -1;
while (++i < len) {
currentQueue[i]();
}
len = queue.length;
}
draining = false;
}
process.nextTick = function (fun) {
queue.push(fun);
if (!draining) {
setTimeout(drainQueue, 0);
}
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};
function noop() {}
process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.binding = function (name) {
throw new Error('process.binding is not supported');
};
// TODO(shtylman)
process.cwd = function () { return '/' };
process.chdir = function (dir) {
throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };
},{}],4:[function(_dereq_,module,exports){
module.exports = function isBuffer(arg) {
return arg && typeof arg === 'object'
&& typeof arg.copy === 'function'
&& typeof arg.fill === 'function'
&& typeof arg.readUInt8 === 'function';
}
},{}],5:[function(_dereq_,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
if (!isString(f)) {
var objects = [];
for (var i = 0; i < arguments.length; i++) {
objects.push(inspect(arguments[i]));
}
return objects.join(' ');
}
var i = 1;
var args = arguments;
var len = args.length;
var str = String(f).replace(formatRegExp, function(x) {
if (x === '%%') return '%';
if (i >= len) return x;
switch (x) {
case '%s': return String(args[i++]);
case '%d': return Number(args[i++]);
case '%j':
try {
return JSON.stringify(args[i++]);
} catch (_) {
return '[Circular]';
}
default:
return x;
}
});
for (var x = args[i]; i < len; x = args[++i]) {
if (isNull(x) || !isObject(x)) {
str += ' ' + x;
} else {
str += ' ' + inspect(x);
}
}
return str;
};
// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
// Allow for deprecating things in the process of starting up.
if (isUndefined(global.process)) {
return function() {
return exports.deprecate(fn, msg).apply(this, arguments);
};
}
if (process.noDeprecation === true) {
return fn;
}
var warned = false;
function deprecated() {
if (!warned) {
if (process.throwDeprecation) {
throw new Error(msg);
} else if (process.traceDeprecation) {
console.trace(msg);
} else {
console.error(msg);
}
warned = true;
}
return fn.apply(this, arguments);
}
return deprecated;
};
var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
if (isUndefined(debugEnviron))
debugEnviron = process.env.NODE_DEBUG || '';
set = set.toUpperCase();
if (!debugs[set]) {
if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
var pid = process.pid;
debugs[set] = function() {
var msg = exports.format.apply(exports, arguments);
console.error('%s %d: %s', set, pid, msg);
};
} else {
debugs[set] = function() {};
}
}
return debugs[set];
};
/**
* Echos the value of a value. Trys to print the value out
* in the best way possible given the different types.
*
* @param {Object} obj The object to print out.
* @param {Object} opts Optional options object that alters the output.
*/
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
// default options
var ctx = {
seen: [],
stylize: stylizeNoColor
};
// legacy...
if (arguments.length >= 3) ctx.depth = arguments[2];
if (arguments.length >= 4) ctx.colors = arguments[3];
if (isBoolean(opts)) {
// legacy...
ctx.showHidden = opts;
} else if (opts) {
// got an "options" object
exports._extend(ctx, opts);
}
// set default options
if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
if (isUndefined(ctx.depth)) ctx.depth = 2;
if (isUndefined(ctx.colors)) ctx.colors = false;
if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
if (ctx.colors) ctx.stylize = stylizeWithColor;
return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;
// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
'bold' : [1, 22],
'italic' : [3, 23],
'underline' : [4, 24],
'inverse' : [7, 27],
'white' : [37, 39],
'grey' : [90, 39],
'black' : [30, 39],
'blue' : [34, 39],
'cyan' : [36, 39],
'green' : [32, 39],
'magenta' : [35, 39],
'red' : [31, 39],
'yellow' : [33, 39]
};
// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
'special': 'cyan',
'number': 'yellow',
'boolean': 'yellow',
'undefined': 'grey',
'null': 'bold',
'string': 'green',
'date': 'magenta',
// "name": intentionally not styling
'regexp': 'red'
};
function stylizeWithColor(str, styleType) {
var style = inspect.styles[styleType];
if (style) {
return '\u001b[' + inspect.colors[style][0] + 'm' + str +
'\u001b[' + inspect.colors[style][1] + 'm';
} else {
return str;
}
}
function stylizeNoColor(str, styleType) {
return str;
}
function arrayToHash(array) {
var hash = {};
array.forEach(function(val, idx) {
hash[val] = true;
});
return hash;
}
function formatValue(ctx, value, recurseTimes) {
// Provide a hook for user-specified inspect functions.
// Check that value is an object with an inspect function on it
if (ctx.customInspect &&
value &&
isFunction(value.inspect) &&
// Filter out the util module, it's inspect function is special
value.inspect !== exports.inspect &&
// Also filter out any prototype objects using the circular check.
!(value.constructor && value.constructor.prototype === value)) {
var ret = value.inspect(recurseTimes, ctx);
if (!isString(ret)) {
ret = formatValue(ctx, ret, recurseTimes);
}
return ret;
}
// Primitive types cannot have properties
var primitive = formatPrimitive(ctx, value);
if (primitive) {
return primitive;
}
// Look up the keys of the object.
var keys = Object.keys(value);
var visibleKeys = arrayToHash(keys);
if (ctx.showHidden) {
keys = Object.getOwnPropertyNames(value);
}
// IE doesn't make error fields non-enumerable
// http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
if (isError(value)
&& (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
return formatError(value);
}
// Some type of object without properties can be shortcutted.
if (keys.length === 0) {
if (isFunction(value)) {
var name = value.name ? ': ' + value.name : '';
return ctx.stylize('[Function' + name + ']', 'special');
}
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
}
if (isDate(value)) {
return ctx.stylize(Date.prototype.toString.call(value), 'date');
}
if (isError(value)) {
return formatError(value);
}
}
var base = '', array = false, braces = ['{', '}'];
// Make Array say that they are Array
if (isArray(value)) {
array = true;
braces = ['[', ']'];
}
// Make functions say that they are functions
if (isFunction(value)) {
var n = value.name ? ': ' + value.name : '';
base = ' [Function' + n + ']';
}
// Make RegExps say that they are RegExps
if (isRegExp(value)) {
base = ' ' + RegExp.prototype.toString.call(value);
}
// Make dates with properties first say the date
if (isDate(value)) {
base = ' ' + Date.prototype.toUTCString.call(value);
}
// Make error with message first say the error
if (isError(value)) {
base = ' ' + formatError(value);
}
if (keys.length === 0 && (!array || value.length == 0)) {
return braces[0] + base + braces[1];
}
if (recurseTimes < 0) {
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
} else {
return ctx.stylize('[Object]', 'special');
}
}
ctx.seen.push(value);
var output;
if (array) {
output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
} else {
output = keys.map(function(key) {
return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
});
}
ctx.seen.pop();
return reduceToSingleString(output, base, braces);
}
function formatPrimitive(ctx, value) {
if (isUndefined(value))
return ctx.stylize('undefined', 'undefined');
if (isString(value)) {
var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
.replace(/'/g, "\\'")
.replace(/\\"/g, '"') + '\'';
return ctx.stylize(simple, 'string');
}
if (isNumber(value))
return ctx.stylize('' + value, 'number');
if (isBoolean(value))
return ctx.stylize('' + value, 'boolean');
// For some reason typeof null is "object", so special case here.
if (isNull(value))
return ctx.stylize('null', 'null');
}
function formatError(value) {
return '[' + Error.prototype.toString.call(value) + ']';
}
function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
var output = [];
for (var i = 0, l = value.length; i < l; ++i) {
if (hasOwnProperty(value, String(i))) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
String(i), true));
} else {
output.push('');
}
}
keys.forEach(function(key) {
if (!key.match(/^\d+$/)) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
key, true));
}
});
return output;
}
function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
var name, str, desc;
desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
if (desc.get) {
if (desc.set) {
str = ctx.stylize('[Getter/Setter]', 'special');
} else {
str = ctx.stylize('[Getter]', 'special');
}
} else {
if (desc.set) {
str = ctx.stylize('[Setter]', 'special');
}
}
if (!hasOwnProperty(visibleKeys, key)) {
name = '[' + key + ']';
}
if (!str) {
if (ctx.seen.indexOf(desc.value) < 0) {
if (isNull(recurseTimes)) {
str = formatValue(ctx, desc.value, null);
} else {
str = formatValue(ctx, desc.value, recurseTimes - 1);
}
if (str.indexOf('\n') > -1) {
if (array) {
str = str.split('\n').map(function(line) {
return ' ' + line;
}).join('\n').substr(2);
} else {
str = '\n' + str.split('\n').map(function(line) {
return ' ' + line;
}).join('\n');
}
}
} else {
str = ctx.stylize('[Circular]', 'special');
}
}
if (isUndefined(name)) {
if (array && key.match(/^\d+$/)) {
return str;
}
name = JSON.stringify('' + key);
if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
name = name.substr(1, name.length - 2);
name = ctx.stylize(name, 'name');
} else {
name = name.replace(/'/g, "\\'")
.replace(/\\"/g, '"')
.replace(/(^"|"$)/g, "'");
name = ctx.stylize(name, 'string');
}
}
return name + ': ' + str;
}
function reduceToSingleString(output, base, braces) {
var numLinesEst = 0;
var length = output.reduce(function(prev, cur) {
numLinesEst++;
if (cur.indexOf('\n') >= 0) numLinesEst++;
return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
}, 0);
if (length > 60) {
return braces[0] +
(base === '' ? '' : base + '\n ') +
' ' +
output.join(',\n ') +
' ' +
braces[1];
}
return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}
// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
return Array.isArray(ar);
}
exports.isArray = isArray;
function isBoolean(arg) {
return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;
function isNull(arg) {
return arg === null;
}
exports.isNull = isNull;
function isNullOrUndefined(arg) {
return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;
function isNumber(arg) {
return typeof arg === 'number';
}
exports.isNumber = isNumber;
function isString(arg) {
return typeof arg === 'string';
}
exports.isString = isString;
function isSymbol(arg) {
return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;
function isUndefined(arg) {
return arg === void 0;
}
exports.isUndefined = isUndefined;
function isRegExp(re) {
return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;
function isObject(arg) {
return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;
function isDate(d) {
return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;
function isError(e) {
return isObject(e) &&
(objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;
function isFunction(arg) {
return typeof arg === 'function';
}
exports.isFunction = isFunction;
function isPrimitive(arg) {
return arg === null ||
typeof arg === 'boolean' ||
typeof arg === 'number' ||
typeof arg === 'string' ||
typeof arg === 'symbol' || // ES6 symbol
typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;
exports.isBuffer = _dereq_('./support/isBuffer');
function objectToString(o) {
return Object.prototype.toString.call(o);
}
function pad(n) {
return n < 10 ? '0' + n.toString(10) : n.toString(10);
}
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
'Oct', 'Nov', 'Dec'];
// 26 Feb 16:19:34
function timestamp() {
var d = new Date();
var time = [pad(d.getHours()),
pad(d.getMinutes()),
pad(d.getSeconds())].join(':');
return [d.getDate(), months[d.getMonth()], time].join(' ');
}
// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};
/**
* Inherit the prototype methods from one constructor into another.
*
* The Function.prototype.inherits from lang.js rewritten as a standalone
* function (not on Function.prototype). NOTE: If this file is to be loaded
* during bootstrapping this function needs to be rewritten using some native
* functions as prototype setup using normal JavaScript does not work as
* expected during bootstrapping (see mirror.js in r114903).
*
* @param {function} ctor Constructor function which needs to inherit the
* prototype.
* @param {function} superCtor Constructor function to inherit prototype from.
*/
exports.inherits = _dereq_('inherits');
exports._extend = function(origin, add) {
// Don't do anything if add isn't an object
if (!add || !isObject(add)) return origin;
var keys = Object.keys(add);
var i = keys.length;
while (i--) {
origin[keys[i]] = add[keys[i]];
}
return origin;
};
function hasOwnProperty(obj, prop) {
return Object.prototype.hasOwnProperty.call(obj, prop);
}
}).call(this,_dereq_('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":4,"_process":3,"inherits":2}],6:[function(_dereq_,module,exports){
// A recursive descent parser operates by defining functions for all
// syntactic elements, and recursively calling those, each function
// advancing the input stream and returning an AST node. Precedence
// of constructs (for example, the fact that `!x[1]` means `!(x[1])`
// instead of `(!x)[1]` is handled by the fact that the parser
// function that parses unary prefix operators is called first, and
// in turn calls the function that parses `[]` subscripts — that
// way, it'll receive the node for `x[1]` already parsed, and wraps
// *that* in the unary operator node.
//
// Acorn uses an [operator precedence parser][opp] to handle binary
// operator precedence, because it is much more compact than using
// the technique outlined above, which uses different, nesting
// functions to specify precedence, for all of the ten binary
// precedence levels that JavaScript defines.
//
// [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser
"use strict";
var tt = _dereq_("./tokentype").types;
var Parser = _dereq_("./state").Parser;
var reservedWords = _dereq_("./identifier").reservedWords;
var has = _dereq_("./util").has;
var pp = Parser.prototype;
// Check if property name clashes with already added.
// Object/class getters and setters are not allowed to clash —
// either with each other or with an init property — and in
// strict mode, init properties are also not allowed to be repeated.
pp.checkPropClash = function (prop, propHash) {
if (this.options.ecmaVersion >= 6) return;
var key = prop.key,
name = undefined;
switch (key.type) {
case "Identifier":
name = key.name;break;
case "Literal":
name = String(key.value);break;
default:
return;
}
var kind = prop.kind || "init",
other = undefined;
if (has(propHash, name)) {
other = propHash[name];
var isGetSet = kind !== "init";
if ((this.strict || isGetSet) && other[kind] || !(isGetSet ^ other.init)) this.raise(key.start, "Redefinition of property");
} else {
other = propHash[name] = {
init: false,
get: false,
set: false
};
}
other[kind] = true;
};
// ### Expression parsing
// These nest, from the most general expression type at the top to
// 'atomic', nondivisible expression types at the bottom. Most of
// the functions will simply let the function(s) below them parse,
// and, *if* the syntactic construct they handle is present, wrap
// the AST node that the inner parser gave them in another node.
// Parse a full expression. The optional arguments are used to
// forbid the `in` operator (in for loops initalization expressions)
// and provide reference for storing '=' operator inside shorthand
// property assignment in contexts where both object expression
// and object pattern might appear (so it's possible to raise
// delayed syntax error at correct position).
pp.parseExpression = function (noIn, refShorthandDefaultPos) {
var startPos = this.start,
startLoc = this.startLoc;
var expr = this.parseMaybeAssign(noIn, refShorthandDefaultPos);
if (this.type === tt.comma) {
var node = this.startNodeAt(startPos, startLoc);
node.expressions = [expr];
while (this.eat(tt.comma)) node.expressions.push(this.parseMaybeAssign(noIn, refShorthandDefaultPos));
return this.finishNode(node, "SequenceExpression");
}
return expr;
};
// Parse an assignment expression. This includes applications of
// operators like `+=`.
pp.parseMaybeAssign = function (noIn, refShorthandDefaultPos, afterLeftParse) {
if (this.type == tt._yield && this.inGenerator) return this.parseYield();
var failOnShorthandAssign = undefined;
if (!refShorthandDefaultPos) {
refShorthandDefaultPos = { start: 0 };
failOnShorthandAssign = true;
} else {
failOnShorthandAssign = false;
}
var startPos = this.start,
startLoc = this.startLoc;
if (this.type == tt.parenL || this.type == tt.name) this.potentialArrowAt = this.start;
var left = this.parseMaybeConditional(noIn, refShorthandDefaultPos);
if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc);
if (this.type.isAssign) {
var node = this.startNodeAt(startPos, startLoc);
node.operator = this.value;
node.left = this.type === tt.eq ? this.toAssignable(left) : left;
refShorthandDefaultPos.start = 0; // reset because shorthand default was used correctly
this.checkLVal(left);
this.next();
node.right = this.parseMaybeAssign(noIn);
return this.finishNode(node, "AssignmentExpression");
} else if (failOnShorthandAssign && refShorthandDefaultPos.start) {
this.unexpected(refShorthandDefaultPos.start);
}
return left;
};
// Parse a ternary conditional (`?:`) operator.
pp.parseMaybeConditional = function (noIn, refShorthandDefaultPos) {
var startPos = this.start,
startLoc = this.startLoc;
var expr = this.parseExprOps(noIn, refShorthandDefaultPos);
if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
if (this.eat(tt.question)) {
var node = this.startNodeAt(startPos, startLoc);
node.test = expr;
node.consequent = this.parseMaybeAssign();
this.expect(tt.colon);
node.alternate = this.parseMaybeAssign(noIn);
return this.finishNode(node, "ConditionalExpression");
}
return expr;
};
// Start the precedence parser.
pp.parseExprOps = function (noIn, refShorthandDefaultPos) {
var startPos = this.start,
startLoc = this.startLoc;
var expr = this.parseMaybeUnary(refShorthandDefaultPos);
if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
return this.parseExprOp(expr, startPos, startLoc, -1, noIn);
};
// Parse binary operators with the operator precedence parsing
// algorithm. `left` is the left-hand side of the operator.
// `minPrec` provides context that allows the function to stop and
// defer further parser to one of its callers when it encounters an
// operator that has a lower precedence than the set it is parsing.
pp.parseExprOp = function (left, leftStartPos, leftStartLoc, minPrec, noIn) {
var prec = this.type.binop;
if (Array.isArray(leftStartPos)) {
if (this.options.locations && noIn === undefined) {
// shift arguments to left by one
noIn = minPrec;
minPrec = leftStartLoc;
// flatten leftStartPos
leftStartLoc = leftStartPos[1];
leftStartPos = leftStartPos[0];
}
}
if (prec != null && (!noIn || this.type !== tt._in)) {
if (prec > minPrec) {
var node = this.startNodeAt(leftStartPos, leftStartLoc);
node.left = left;
node.operator = this.value;
var op = this.type;
this.next();
var startPos = this.start,
startLoc = this.startLoc;
node.right = this.parseExprOp(this.parseMaybeUnary(), startPos, startLoc, prec, noIn);
this.finishNode(node, op === tt.logicalOR || op === tt.logicalAND ? "LogicalExpression" : "BinaryExpression");
return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn);
}
}
return left;
};
// Parse unary operators, both prefix and postfix.
pp.parseMaybeUnary = function (refShorthandDefaultPos) {
if (this.type.prefix) {
var node = this.startNode(),
update = this.type === tt.incDec;
node.operator = this.value;
node.prefix = true;
this.next();
node.argument = this.parseMaybeUnary();
if (refShorthandDefaultPos && refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start);
if (update) this.checkLVal(node.argument);else if (this.strict && node.operator === "delete" && node.argument.type === "Identifier") this.raise(node.start, "Deleting local variable in strict mode");
return this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
}
var startPos = this.start,
startLoc = this.startLoc;
var expr = this.parseExprSubscripts(refShorthandDefaultPos);
if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
while (this.type.postfix && !this.canInsertSemicolon()) {
var node = this.startNodeAt(startPos, startLoc);
node.operator = this.value;
node.prefix = false;
node.argument = expr;
this.checkLVal(expr);
this.next();
expr = this.finishNode(node, "UpdateExpression");
}
return expr;
};
// Parse call, dot, and `[]`-subscript expressions.
pp.parseExprSubscripts = function (refShorthandDefaultPos) {
var startPos = this.start,
startLoc = this.startLoc;
var expr = this.parseExprAtom(refShorthandDefaultPos);
if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
return this.parseSubscripts(expr, startPos, startLoc);
};
pp.parseSubscripts = function (base, startPos, startLoc, noCalls) {
if (Array.isArray(startPos)) {
if (this.options.locations && noCalls === undefined) {
// shift arguments to left by one
noCalls = startLoc;
// flatten startPos
startLoc = startPos[1];
startPos = startPos[0];
}
}
for (;;) {
if (this.eat(tt.dot)) {
var node = this.startNodeAt(startPos, startLoc);
node.object = base;
node.property = this.parseIdent(true);
node.computed = false;
base = this.finishNode(node, "MemberExpression");
} else if (this.eat(tt.bracketL)) {
var node = this.startNodeAt(startPos, startLoc);
node.object = base;
node.property = this.parseExpression();
node.computed = true;
this.expect(tt.bracketR);
base = this.finishNode(node, "MemberExpression");
} else if (!noCalls && this.eat(tt.parenL)) {
var node = this.startNodeAt(startPos, startLoc);
node.callee = base;
node.arguments = this.parseExprList(tt.parenR, false);
base = this.finishNode(node, "CallExpression");
} else if (this.type === tt.backQuote) {
var node = this.startNodeAt(startPos, startLoc);
node.tag = base;
node.quasi = this.parseTemplate();
base = this.finishNode(node, "TaggedTemplateExpression");
} else {
return base;
}
}
};
// Parse an atomic expression — either a single token that is an
// expression, an expression started by a keyword like `function` or
// `new`, or an expression wrapped in punctuation like `()`, `[]`,
// or `{}`.
pp.parseExprAtom = function (refShorthandDefaultPos) {
var node = undefined,
canBeArrow = this.potentialArrowAt == this.start;
switch (this.type) {
case tt._this:
case tt._super:
var type = this.type === tt._this ? "ThisExpression" : "Super";
node = this.startNode();
this.next();
return this.finishNode(node, type);
case tt._yield:
if (this.inGenerator) this.unexpected();
case tt.name:
var startPos = this.start,
startLoc = this.startLoc;
var id = this.parseIdent(this.type !== tt.name);
if (canBeArrow && !this.canInsertSemicolon() && this.eat(tt.arrow)) return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id]);
return id;
case tt.regexp:
var value = this.value;
node = this.parseLiteral(value.value);
node.regex = { pattern: value.pattern, flags: value.flags };
return node;
case tt.num:case tt.string:
return this.parseLiteral(this.value);
case tt._null:case tt._true:case tt._false:
node = this.startNode();
node.value = this.type === tt._null ? null : this.type === tt._true;
node.raw = this.type.keyword;
this.next();
return this.finishNode(node, "Literal");
case tt.parenL:
return this.parseParenAndDistinguishExpression(canBeArrow);
case tt.bracketL:
node = this.startNode();
this.next();
// check whether this is array comprehension or regular array
if (this.options.ecmaVersion >= 7 && this.type === tt._for) {
return this.parseComprehension(node, false);
}
node.elements = this.parseExprList(tt.bracketR, true, true, refShorthandDefaultPos);
return this.finishNode(node, "ArrayExpression");
case tt.braceL:
return this.parseObj(false, refShorthandDefaultPos);
case tt._function:
node = this.startNode();
this.next();
return this.parseFunction(node, false);
case tt._class:
return this.parseClass(this.startNode(), false);
case tt._new:
return this.parseNew();
case tt.backQuote:
return this.parseTemplate();
default:
this.unexpected();
}
};
pp.parseLiteral = function (value) {
var node = this.startNode();
node.value = value;
node.raw = this.input.slice(this.start, this.end);
this.next();
return this.finishNode(node, "Literal");
};
pp.parseParenExpression = function () {
this.expect(tt.parenL);
var val = this.parseExpression();
this.expect(tt.parenR);
return val;
};
pp.parseParenAndDistinguishExpression = function (canBeArrow) {
var startPos = this.start,
startLoc = this.startLoc,
val = undefined;
if (this.options.ecmaVersion >= 6) {
this.next();
if (this.options.ecmaVersion >= 7 && this.type === tt._for) {
return this.parseComprehension(this.startNodeAt(startPos, startLoc), true);
}
var innerStartPos = this.start,
innerStartLoc = this.startLoc;
var exprList = [],
first = true;
var refShorthandDefaultPos = { start: 0 },
spreadStart = undefined,
innerParenStart = undefined;
while (this.type !== tt.parenR) {
first ? first = false : this.expect(tt.comma);
if (this.type === tt.ellipsis) {
spreadStart = this.start;
exprList.push(this.parseParenItem(this.parseRest()));
break;
} else {
if (this.type === tt.parenL && !innerParenStart) {
innerParenStart = this.start;
}
exprList.push(this.parseMaybeAssign(false, refShorthandDefaultPos, this.parseParenItem));
}
}
var innerEndPos = this.start,
innerEndLoc = this.startLoc;
this.expect(tt.parenR);
if (canBeArrow && !this.canInsertSemicolon() && this.eat(tt.arrow)) {
if (innerParenStart) this.unexpected(innerParenStart);
return this.parseParenArrowList(startPos, startLoc, exprList);
}
if (!exprList.length) this.unexpected(this.lastTokStart);
if (spreadStart) this.unexpected(spreadStart);
if (refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start);
if (exprList.length > 1) {
val = this.startNodeAt(innerStartPos, innerStartLoc);
val.expressions = exprList;
this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
} else {
val = exprList[0];
}
} else {
val = this.parseParenExpression();
}
if (this.options.preserveParens) {
var par = this.startNodeAt(startPos, startLoc);
par.expression = val;
return this.finishNode(par, "ParenthesizedExpression");
} else {
return val;
}
};
pp.parseParenItem = function (item) {
return item;
};
pp.parseParenArrowList = function (startPos, startLoc, exprList) {
return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList);
};
// New's precedence is slightly tricky. It must allow its argument
// to be a `[]` or dot subscript expression, but not a call — at
// least, not without wrapping it in parentheses. Thus, it uses the
var empty = [];
pp.parseNew = function () {
var node = this.startNode();
var meta = this.parseIdent(true);
if (this.options.ecmaVersion >= 6 && this.eat(tt.dot)) {
node.meta = meta;
node.property = this.parseIdent(true);
if (node.property.name !== "target") this.raise(node.property.start, "The only valid meta property for new is new.target");
return this.finishNode(node, "MetaProperty");
}
var startPos = this.start,
startLoc = this.startLoc;
node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
if (this.eat(tt.parenL)) node.arguments = this.parseExprList(tt.parenR, false);else node.arguments = empty;
return this.finishNode(node, "NewExpression");
};
// Parse template expression.
pp.parseTemplateElement = function () {
var elem = this.startNode();
elem.value = {
raw: this.input.slice(this.start, this.end),
cooked: this.value
};
this.next();
elem.tail = this.type === tt.backQuote;
return this.finishNode(elem, "TemplateElement");
};
pp.parseTemplate = function () {
var node = this.startNode();
this.next();
node.expressions = [];
var curElt = this.parseTemplateElement();
node.quasis = [curElt];
while (!curElt.tail) {
this.expect(tt.dollarBraceL);
node.expressions.push(this.parseExpression());
this.expect(tt.braceR);
node.quasis.push(curElt = this.parseTemplateElement());
}
this.next();
return this.finishNode(node, "TemplateLiteral");
};
// Parse an object literal or binding pattern.
pp.parseObj = function (isPattern, refShorthandDefaultPos) {
var node = this.startNode(),
first = true,
propHash = {};
node.properties = [];
this.next();
while (!this.eat(tt.braceR)) {
if (!first) {
this.expect(tt.comma);
if (this.afterTrailingComma(tt.braceR)) break;
} else first = false;
var prop = this.startNode(),
isGenerator = undefined,
startPos = undefined,
startLoc = undefined;
if (this.options.ecmaVersion >= 6) {
prop.method = false;
prop.shorthand = false;
if (isPattern || refShorthandDefaultPos) {
startPos = this.start;
startLoc = this.startLoc;
}
if (!isPattern) isGenerator = this.eat(tt.star);
}
this.parsePropertyName(prop);
this.parsePropertyValue(prop, isPattern, isGenerator, startPos, startLoc, refShorthandDefaultPos);
this.checkPropClash(prop, propHash);
node.properties.push(this.finishNode(prop, "Property"));
}
return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression");
};
pp.parsePropertyValue = function (prop, isPattern, isGenerator, startPos, startLoc, refShorthandDefaultPos) {
if (this.eat(tt.colon)) {
prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refShorthandDefaultPos);
prop.kind = "init";
} else if (this.options.ecmaVersion >= 6 && this.type === tt.parenL) {
if (isPattern) this.unexpected();
prop.kind = "init";
prop.method = true;
prop.value = this.parseMethod(isGenerator);
} else if (this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" && (prop.key.name === "get" || prop.key.name === "set") && (this.type != tt.comma && this.type != tt.braceR)) {
if (isGenerator || isPattern) this.unexpected();
prop.kind = prop.key.name;
this.parsePropertyName(prop);
prop.value = this.parseMethod(false);
} else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
prop.kind = "init";
if (isPattern) {
if (this.isKeyword(prop.key.name) || this.strict && (reservedWords.strictBind(prop.key.name) || reservedWords.strict(prop.key.name)) || !this.options.allowReserved && this.isReservedWord(prop.key.name)) this.raise(prop.key.start, "Binding " + prop.key.name);
prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
} else if (this.type === tt.eq && refShorthandDefaultPos) {
if (!refShorthandDefaultPos.start) refShorthandDefaultPos.start = this.start;
prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
} else {
prop.value = prop.key;
}
prop.shorthand = true;
} else this.unexpected();
};
pp.parsePropertyName = function (prop) {
if (this.options.ecmaVersion >= 6) {
if (this.eat(tt.bracketL)) {
prop.computed = true;
prop.key = this.parseMaybeAssign();
this.expect(tt.bracketR);
return prop.key;
} else {
prop.computed = false;
}
}
return prop.key = this.type === tt.num || this.type === tt.string ? this.parseExprAtom() : this.parseIdent(true);
};
// Initialize empty function node.
pp.initFunction = function (node) {
node.id = null;
if (this.options.ecmaVersion >= 6) {
node.generator = false;
node.expression = false;
}
};
// Parse object or class method.
pp.parseMethod = function (isGenerator) {
var node = this.startNode();
this.initFunction(node);
this.expect(tt.parenL);
node.params = this.parseBindingList(tt.parenR, false, false);
var allowExpressionBody = undefined;
if (this.options.ecmaVersion >= 6) {
node.generator = isGenerator;
allowExpressionBody = true;
} else {
allowExpressionBody = false;
}
this.parseFunctionBody(node, allowExpressionBody);
return this.finishNode(node, "FunctionExpression");
};
// Parse arrow function expression with given parameters.
pp.parseArrowExpression = function (node, params) {
this.initFunction(node);
node.params = this.toAssignableList(params, true);
this.parseFunctionBody(node, true);
return this.finishNode(node, "ArrowFunctionExpression");
};
// Parse function body and check parameters.
pp.parseFunctionBody = function (node, allowExpression) {
var isExpression = allowExpression && this.type !== tt.braceL;
if (isExpression) {
node.body = this.parseMaybeAssign();
node.expression = true;
} else {
// Start a new scope with regard to labels and the `inFunction`
// flag (restore them to their old value afterwards).
var oldInFunc = this.inFunction,
oldInGen = this.inGenerator,
oldLabels = this.labels;
this.inFunction = true;this.inGenerator = node.generator;this.labels = [];
node.body = this.parseBlock(true);
node.expression = false;
this.inFunction = oldInFunc;this.inGenerator = oldInGen;this.labels = oldLabels;
}
// If this is a strict mode function, verify that argument names
// are not repeated, and it does not try to bind the words `eval`
// or `arguments`.
if (this.strict || !isExpression && node.body.body.length && this.isUseStrict(node.body.body[0])) {
var nameHash = {},
oldStrict = this.strict;
this.strict = true;
if (node.id) this.checkLVal(node.id, true);
for (var i = 0; i < node.params.length; i++) {
this.checkLVal(node.params[i], true, nameHash);
}this.strict = oldStrict;
}
};
// Parses a comma-separated list of expressions, and returns them as
// an array. `close` is the token type that ends the list, and
// `allowEmpty` can be turned on to allow subsequent commas with
// nothing in between them to be parsed as `null` (which is needed
// for array literals).
pp.parseExprList = function (close, allowTrailingComma, allowEmpty, refShorthandDefaultPos) {
var elts = [],
first = true;
while (!this.eat(close)) {
if (!first) {
this.expect(tt.comma);
if (allowTrailingComma && this.afterTrailingComma(close)) break;
} else first = false;
if (allowEmpty && this.type === tt.comma) {
elts.push(null);
} else {
if (this.type === tt.ellipsis) elts.push(this.parseSpread(refShorthandDefaultPos));else elts.push(this.parseMaybeAssign(false, refShorthandDefaultPos));
}
}
return elts;
};
// Parse the next token as an identifier. If `liberal` is true (used
// when parsing properties), it will also convert keywords into
// identifiers.
pp.parseIdent = function (liberal) {
var node = this.startNode();
if (liberal && this.options.allowReserved == "never") liberal = false;
if (this.type === tt.name) {
if (!liberal && (!this.options.allowReserved && this.isReservedWord(this.value) || this.strict && reservedWords.strict(this.value) && (this.options.ecmaVersion >= 6 || this.input.slice(this.start, this.end).indexOf("\\") == -1))) this.raise(this.start, "The keyword '" + this.value + "' is reserved");
node.name = this.value;
} else if (liberal && this.type.keyword) {
node.name = this.type.keyword;
} else {
this.unexpected();
}
this.next();
return this.finishNode(node, "Identifier");
};
// Parses yield expression inside generator.
pp.parseYield = function () {
var node = this.startNode();
this.next();
if (this.type == tt.semi || this.canInsertSemicolon() || this.type != tt.star && !this.type.startsExpr) {
node.delegate = false;
node.argument = null;
} else {
node.delegate = this.eat(tt.star);
node.argument = this.parseMaybeAssign();
}
return this.finishNode(node, "YieldExpression");
};
// Parses array and generator comprehensions.
pp.parseComprehension = function (node, isGenerator) {
node.blocks = [];
while (this.type === tt._for) {
var block = this.startNode();
this.next();
this.expect(tt.parenL);
block.left = this.parseBindingAtom();
this.checkLVal(block.left, true);
this.expectContextual("of");
block.right = this.parseExpression();
this.expect(tt.parenR);
node.blocks.push(this.finishNode(block, "ComprehensionBlock"));
}
node.filter = this.eat(tt._if) ? this.parseParenExpression() : null;
node.body = this.parseExpression();
this.expect(isGenerator ? tt.parenR : tt.bracketR);
node.generator = isGenerator;
return this.finishNode(node, "ComprehensionExpression");
};
},{"./identifier":7,"./state":13,"./tokentype":17,"./util":18}],7:[function(_dereq_,module,exports){
// Test whether a given character code starts an identifier.
"use strict";
exports.isIdentifierStart = isIdentifierStart;
// Test whether a given character is part of an identifier.
exports.isIdentifierChar = isIdentifierChar;
exports.__esModule = true;
// This is a trick taken from Esprima. It turns out that, on
// non-Chrome browsers, to check whether a string is in a set, a
// predicate containing a big ugly `switch` statement is faster than
// a regular expression, and on Chrome the two are about on par.
// This function uses `eval` (non-lexical) to produce such a
// predicate from a space-separated string of words.
//
// It starts by sorting the words by length.
function makePredicate(words) {
words = words.split(" ");
var f = "",
cats = [];
out: for (var i = 0; i < words.length; ++i) {
for (var j = 0; j < cats.length; ++j) {
if (cats[j][0].length == words[i].length) {
cats[j].push(words[i]);
continue out;
}
}cats.push([words[i]]);
}
function compareTo(arr) {
if (arr.length == 1) {
return f += "return str === " + JSON.stringify(arr[0]) + ";";
}f += "switch(str){";
for (var i = 0; i < arr.length; ++i) {
f += "case " + JSON.stringify(arr[i]) + ":";
}f += "return true}return false;";
}
// When there are more than three length categories, an outer
// switch first dispatches on the lengths, to save on comparisons.
if (cats.length > 3) {
cats.sort(function (a, b) {
return b.length - a.length;
});
f += "switch(str.length){";
for (var i = 0; i < cats.length; ++i) {
var cat = cats[i];
f += "case " + cat[0].length + ":";
compareTo(cat);
}
f += "}"
// Otherwise, simply generate a flat `switch` statement.
;
} else {
compareTo(words);
}
return new Function("str", f);
}
// Reserved word lists for various dialects of the language
var reservedWords = {
3: makePredicate("abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile"),
5: makePredicate("class enum extends super const export import"),
6: makePredicate("enum await"),
strict: makePredicate("implements interface let package private protected public static yield"),
strictBind: makePredicate("eval arguments")
};
exports.reservedWords = reservedWords;
// And the keywords
var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this";
var keywords = {
5: makePredicate(ecma5AndLessKeywords),
6: makePredicate(ecma5AndLessKeywords + " let const class extends export import yield super")
};
exports.keywords = keywords;
// ## Character categories
// Big ugly regular expressions that match characters in the
// whitespace, identifier, and identifier-start categories. These
// are only applied when a character is found to actually have a
// code point above 128.
// Generated by `tools/generate-identifier-regex.js`.
var nonASCIIidentifierStartChars = "ªµºÀ-ÖØ-öø-ˁˆ-ˑˠ-ˤˬˮͰ-ʹͶͷͺ-ͽͿΆΈ-ΊΌΎ-ΡΣ-ϵϷ-ҁҊ-ԯԱ-Ֆՙա-ևא-תװ-ײؠ-يٮٯٱ-ۓەۥۦۮۯۺ-ۼۿܐܒ-ܯݍ-ޥޱߊ-ߪߴߵߺࠀ-ࠕࠚࠤࠨࡀ-ࡘࢠ-ࢲऄ-हऽॐक़-ॡॱ-ঀঅ-ঌএঐও-নপ-রলশ-হঽৎড়ঢ়য়-ৡৰৱਅ-ਊਏਐਓ-ਨਪ-ਰਲਲ਼ਵਸ਼ਸਹਖ਼-ੜਫ਼ੲ-ੴઅ-ઍએ-ઑઓ-નપ-રલળવ-હઽૐૠૡଅ-ଌଏଐଓ-ନପ-ରଲଳଵ-ହଽଡ଼ଢ଼ୟ-ୡୱஃஅ-ஊஎ-ஐஒ-கஙசஜஞடணதந-பம-ஹௐఅ-ఌఎ-ఐఒ-నప-హఽౘౙౠౡಅ-ಌಎ-ಐಒ-ನಪ-ಳವ-ಹಽೞೠೡೱೲഅ-ഌഎ-ഐഒ-ഺഽൎൠൡൺ-ൿඅ-ඖක-නඳ-රලව-ෆก-ะาำเ-ๆກຂຄງຈຊຍດ-ທນ-ຟມ-ຣລວສຫອ-ະາຳຽເ-ໄໆໜ-ໟༀཀ-ཇཉ-ཬྈ-ྌက-ဪဿၐ-ၕၚ-ၝၡၥၦၮ-ၰၵ-ႁႎႠ-ჅჇჍა-ჺჼ-ቈቊ-ቍቐ-ቖቘቚ-ቝበ-ኈኊ-ኍነ-ኰኲ-ኵኸ-ኾዀዂ-ዅወ-ዖዘ-ጐጒ-ጕጘ-ፚᎀ-ᎏᎠ-Ᏼᐁ-ᙬᙯ-ᙿᚁ-ᚚᚠ-ᛪᛮ-ᛸᜀ-ᜌᜎ-ᜑᜠ-ᜱᝀ-ᝑᝠ-ᝬᝮ-ᝰក-ឳៗៜᠠ-ᡷᢀ-ᢨᢪᢰ-ᣵᤀ-ᤞᥐ-ᥭᥰ-ᥴᦀ-ᦫᧁ-ᧇᨀ-ᨖᨠ-ᩔᪧᬅ-ᬳᭅ-ᭋᮃ-ᮠᮮᮯᮺ-ᯥᰀ-ᰣᱍ-ᱏᱚ-ᱽᳩ-ᳬᳮ-ᳱᳵᳶᴀ-ᶿḀ-ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ᾼιῂ-ῄῆ-ῌῐ-ΐῖ-Ίῠ-Ῥῲ-ῴῶ-ῼⁱⁿₐ-ₜℂℇℊ-ℓℕ℘-ℝℤΩℨK-ℹℼ-ℿⅅ-ⅉⅎⅠ-ↈⰀ-Ⱞⰰ-ⱞⱠ-ⳤⳫ-ⳮⳲⳳⴀ-ⴥⴧⴭⴰ-ⵧⵯⶀ-ⶖⶠ-ⶦⶨ-ⶮⶰ-ⶶⶸ-ⶾⷀ-ⷆⷈ-ⷎⷐ-ⷖⷘ-ⷞ々-〇〡-〩〱-〵〸-〼ぁ-ゖ゛-ゟァ-ヺー-ヿㄅ-ㄭㄱ-ㆎㆠ-ㆺㇰ-ㇿ㐀-䶵一-鿌ꀀ-ꒌꓐ-ꓽꔀ-ꘌꘐ-ꘟꘪꘫꙀ-ꙮꙿ-ꚝꚠ-ꛯꜗ-ꜟꜢ-ꞈꞋ-ꞎꞐ-ꞭꞰꞱꟷ-ꠁꠃ-ꠅꠇ-ꠊꠌ-ꠢꡀ-ꡳꢂ-ꢳꣲ-ꣷꣻꤊ-ꤥꤰ-ꥆꥠ-ꥼꦄ-ꦲꧏꧠ-ꧤꧦ-ꧯꧺ-ꧾꨀ-ꨨꩀ-ꩂꩄ-ꩋꩠ-ꩶꩺꩾ-ꪯꪱꪵꪶꪹ-ꪽꫀꫂꫛ-ꫝꫠ-ꫪꫲ-ꫴꬁ-ꬆꬉ-ꬎꬑ-ꬖꬠ-ꬦꬨ-ꬮꬰ-ꭚꭜ-ꭟꭤꭥꯀ-ꯢ가-힣ힰ-ퟆퟋ-ퟻ豈-舘並-龎ff-stﬓ-ﬗיִײַ-ﬨשׁ-זּטּ-לּמּנּסּףּפּצּ-ﮱﯓ-ﴽﵐ-ﶏﶒ-ﷇﷰ-ﷻﹰ-ﹴﹶ-ﻼA--zヲ-하-ᅦᅧ-ᅬᅭ-ᅲᅳ-ᅵ";
var nonASCIIidentifierChars = "‌‍·̀-ͯ·҃-֑҇-ׇֽֿׁׂׅׄؐ-ًؚ-٩ٰۖ-ۜ۟-۪ۤۧۨ-ۭ۰-۹ܑܰ-݊ަ-ް߀-߉߫-߳ࠖ-࠙ࠛ-ࠣࠥ-ࠧࠩ-࡙࠭-࡛ࣤ-ःऺ-़ा-ॏ॑-ॗॢॣ०-९ঁ-ঃ়া-ৄেৈো-্ৗৢৣ০-৯ਁ-ਃ਼ਾ-ੂੇੈੋ-੍ੑ੦-ੱੵઁ-ઃ઼ા-ૅે-ૉો-્ૢૣ૦-૯ଁ-ଃ଼ା-ୄେୈୋ-୍ୖୗୢୣ୦-୯ஂா-ூெ-ைொ-்ௗ௦-௯ఀ-ఃా-ౄె-ైొ-్ౕౖౢౣ౦-౯ಁ-ಃ಼ಾ-ೄೆ-ೈೊ-್ೕೖೢೣ೦-೯ഁ-ഃാ-ൄെ-ൈൊ-്ൗൢൣ൦-൯ංඃ්ා-ුූෘ-ෟ෦-෯ෲෳัิ-ฺ็-๎๐-๙ັິ-ູົຼ່-ໍ໐-໙༘༙༠-༩༹༵༷༾༿ཱ-྄྆྇ྍ-ྗྙ-ྼ࿆ါ-ှ၀-၉ၖ-ၙၞ-ၠၢ-ၤၧ-ၭၱ-ၴႂ-ႍႏ-ႝ፝-፟፩-፱ᜒ-᜔ᜲ-᜴ᝒᝓᝲᝳ឴-៓៝០-៩᠋-᠍᠐-᠙ᢩᤠ-ᤫᤰ-᤻᥆-᥏ᦰ-ᧀᧈᧉ᧐-᧚ᨗ-ᨛᩕ-ᩞ᩠-᩿᩼-᪉᪐-᪙᪰-᪽ᬀ-ᬄ᬴-᭄᭐-᭙᭫-᭳ᮀ-ᮂᮡ-ᮭ᮰-᮹᯦-᯳ᰤ-᰷᱀-᱉᱐-᱙᳐-᳔᳒-᳨᳭ᳲ-᳴᳸᳹᷀-᷵᷼-᷿‿⁀⁔⃐-⃥⃜⃡-⃰⳯-⵿⳱ⷠ-〪ⷿ-゙゚〯꘠-꘩꙯ꙴ-꙽ꚟ꛰꛱ꠂ꠆ꠋꠣ-ꠧꢀꢁꢴ-꣄꣐-꣙꣠-꣱꤀-꤉ꤦ-꤭ꥇ-꥓ꦀ-ꦃ꦳-꧀꧐-꧙ꧥ꧰-꧹ꨩ-ꨶꩃꩌꩍ꩐-꩙ꩻ-ꩽꪰꪲ-ꪴꪷꪸꪾ꪿꫁ꫫ-ꫯꫵ꫶ꯣ-ꯪ꯬꯭꯰-꯹ﬞ︀-️︠-︭︳︴﹍--_";
var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");
nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;
// These are a run-length and offset encoded representation of the
// >0xffff code points that are a valid part of identifiers. The
// offset starts at 0x10000, and each pair of numbers represents an
// offset to the next range, and then a size of the range. They were
// generated by tools/generate-identifier-regex.js
var astralIdentifierStartCodes = [0, 11, 2, 25, 2, 18, 2, 1, 2, 14, 3, 13, 35, 122, 70, 52, 268, 28, 4, 48, 48, 31, 17, 26, 6, 37, 11, 29, 3, 35, 5, 7, 2, 4, 43, 157, 99, 39, 9, 51, 157, 310, 10, 21, 11, 7, 153, 5, 3, 0, 2, 43, 2, 1, 4, 0, 3, 22, 11, 22, 10, 30, 98, 21, 11, 25, 71, 55, 7, 1, 65, 0, 16, 3, 2, 2, 2, 26, 45, 28, 4, 28, 36, 7, 2, 27, 28, 53, 11, 21, 11, 18, 14, 17, 111, 72, 955, 52, 76, 44, 33, 24, 27, 35, 42, 34, 4, 0, 13, 47, 15, 3, 22, 0, 38, 17, 2, 24, 133, 46, 39, 7, 3, 1, 3, 21, 2, 6, 2, 1, 2, 4, 4, 0, 32, 4, 287, 47, 21, 1, 2, 0, 185, 46, 82, 47, 21, 0, 60, 42, 502, 63, 32, 0, 449, 56, 1288, 920, 104, 110, 2962, 1070, 13266, 568, 8, 30, 114, 29, 19, 47, 17, 3, 32, 20, 6, 18, 881, 68, 12, 0, 67, 12, 16481, 1, 3071, 106, 6, 12, 4, 8, 8, 9, 5991, 84, 2, 70, 2, 1, 3, 0, 3, 1, 3, 3, 2, 11, 2, 0, 2, 6, 2, 64, 2, 3, 3, 7, 2, 6, 2, 27, 2, 3, 2, 4, 2, 0, 4, 6, 2, 339, 3, 24, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 7, 4149, 196, 1340, 3, 2, 26, 2, 1, 2, 0, 3, 0, 2, 9, 2, 3, 2, 0, 2, 0, 7, 0, 5, 0, 2, 0, 2, 0, 2, 2, 2, 1, 2, 0, 3, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 3, 3, 2, 6, 2, 3, 2, 3, 2, 0, 2, 9, 2, 16, 6, 2, 2, 4, 2, 16, 4421, 42710, 42, 4148, 12, 221, 16355, 541];
var astralIdentifierCodes = [509, 0, 227, 0, 150, 4, 294, 9, 1368, 2, 2, 1, 6, 3, 41, 2, 5, 0, 166, 1, 1306, 2, 54, 14, 32, 9, 16, 3, 46, 10, 54, 9, 7, 2, 37, 13, 2, 9, 52, 0, 13, 2, 49, 13, 16, 9, 83, 11, 168, 11, 6, 9, 8, 2, 57, 0, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 316, 19, 13, 9, 214, 6, 3, 8, 112, 16, 16, 9, 82, 12, 9, 9, 535, 9, 20855, 9, 135, 4, 60, 6, 26, 9, 1016, 45, 17, 3, 19723, 1, 5319, 4, 4, 5, 9, 7, 3, 6, 31, 3, 149, 2, 1418, 49, 4305, 6, 792618, 239];
// This has a complexity linear to the value of the code. The
// assumption is that looking up astral identifier characters is
// rare.
function isInAstralSet(code, set) {
var pos = 65536;
for (var i = 0; i < set.length; i += 2) {
pos += set[i];
if (pos > code) {
return false;
}pos += set[i + 1];
if (pos >= code) {
return true;
}
}
}
function isIdentifierStart(code, astral) {
if (code < 65) {
return code === 36;
}if (code < 91) {
return true;
}if (code < 97) {
return code === 95;
}if (code < 123) {
return true;
}if (code <= 65535) {
return code >= 170 && nonASCIIidentifierStart.test(String.fromCharCode(code));
}if (astral === false) {
return false;
}return isInAstralSet(code, astralIdentifierStartCodes);
}
function isIdentifierChar(code, astral) {
if (code < 48) {
return code === 36;
}if (code < 58) {
return true;
}if (code < 65) {
return false;
}if (code < 91) {
return true;
}if (code < 97) {
return code === 95;
}if (code < 123) {
return true;
}if (code <= 65535) {
return code >= 170 && nonASCIIidentifier.test(String.fromCharCode(code));
}if (astral === false) {
return false;
}return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes);
}
},{}],8:[function(_dereq_,module,exports){
"use strict";
var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };
// The `getLineInfo` function is mostly useful when the
// `locations` option is off (for performance reasons) and you
// want to find the line/column position for a given character
// offset. `input` should be the code string that the offset refers
// into.
exports.getLineInfo = getLineInfo;
exports.__esModule = true;
var Parser = _dereq_("./state").Parser;
var lineBreakG = _dereq_("./whitespace").lineBreakG;
var deprecate = _dereq_("util").deprecate;
// These are used when `options.locations` is on, for the
// `startLoc` and `endLoc` properties.
var Position = exports.Position = (function () {
function Position(line, col) {
_classCallCheck(this, Position);
this.line = line;
this.column = col;
}
Position.prototype.offset = function offset(n) {
return new Position(this.line, this.column + n);
};
return Position;
})();
var SourceLocation = exports.SourceLocation = function SourceLocation(p, start, end) {
_classCallCheck(this, SourceLocation);
this.start = start;
this.end = end;
if (p.sourceFile !== null) this.source = p.sourceFile;
};
function getLineInfo(input, offset) {
for (var line = 1, cur = 0;;) {
lineBreakG.lastIndex = cur;
var match = lineBreakG.exec(input);
if (match && match.index < offset) {
++line;
cur = match.index + match[0].length;
} else {
return new Position(line, offset - cur);
}
}
}
var pp = Parser.prototype;
// This function is used to raise exceptions on parse errors. It
// takes an offset integer (into the current `input`) to indicate
// the location of the error, attaches the position to the end
// of the error message, and then raises a `SyntaxError` with that
// message.
pp.raise = function (pos, message) {
var loc = getLineInfo(this.input, pos);
message += " (" + loc.line + ":" + loc.column + ")";
var err = new SyntaxError(message);
err.pos = pos;err.loc = loc;err.raisedAt = this.pos;
throw err;
};
pp.curPosition = function () {
return new Position(this.curLine, this.pos - this.lineStart);
};
pp.markPosition = function () {
return this.options.locations ? [this.start, this.startLoc] : this.start;
};
},{"./state":13,"./whitespace":19,"util":5}],9:[function(_dereq_,module,exports){
"use strict";
var tt = _dereq_("./tokentype").types;
var Parser = _dereq_("./state").Parser;
var reservedWords = _dereq_("./identifier").reservedWords;
var has = _dereq_("./util").has;
var pp = Parser.prototype;
// Convert existing expression atom to assignable pattern
// if possible.
pp.toAssignable = function (node, isBinding) {
if (this.options.ecmaVersion >= 6 && node) {
switch (node.type) {
case "Identifier":
case "ObjectPattern":
case "ArrayPattern":
case "AssignmentPattern":
break;
case "ObjectExpression":
node.type = "ObjectPattern";
for (var i = 0; i < node.properties.length; i++) {
var prop = node.properties[i];
if (prop.kind !== "init") this.raise(prop.key.start, "Object pattern can't contain getter or setter");
this.toAssignable(prop.value, isBinding);
}
break;
case "ArrayExpression":
node.type = "ArrayPattern";
this.toAssignableList(node.elements, isBinding);
break;
case "AssignmentExpression":
if (node.operator === "=") {
node.type = "AssignmentPattern";
} else {
this.raise(node.left.end, "Only '=' operator can be used for specifying default value.");
}
break;
case "ParenthesizedExpression":
node.expression = this.toAssignable(node.expression, isBinding);
break;
case "MemberExpression":
if (!isBinding) break;
default:
this.raise(node.start, "Assigning to rvalue");
}
}
return node;
};
// Convert list of expression atoms to binding list.
pp.toAssignableList = function (exprList, isBinding) {
var end = exprList.length;
if (end) {
var last = exprList[end - 1];
if (last && last.type == "RestElement") {
--end;
} else if (last && last.type == "SpreadElement") {
last.type = "RestElement";
var arg = last.argument;
this.toAssignable(arg, isBinding);
if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern") this.unexpected(arg.start);
--end;
}
}
for (var i = 0; i < end; i++) {
var elt = exprList[i];
if (elt) this.toAssignable(elt, isBinding);
}
return exprList;
};
// Parses spread element.
pp.parseSpread = function (refShorthandDefaultPos) {
var node = this.startNode();
this.next();
node.argument = this.parseMaybeAssign(refShorthandDefaultPos);
return this.finishNode(node, "SpreadElement");
};
pp.parseRest = function () {
var node = this.startNode();
this.next();
node.argument = this.type === tt.name || this.type === tt.bracketL ? this.parseBindingAtom() : this.unexpected();
return this.finishNode(node, "RestElement");
};
// Parses lvalue (assignable) atom.
pp.parseBindingAtom = function () {
if (this.options.ecmaVersion < 6) return this.parseIdent();
switch (this.type) {
case tt.name:
return this.parseIdent();
case tt.bracketL:
var node = this.startNode();
this.next();
node.elements = this.parseBindingList(tt.bracketR, true, true);
return this.finishNode(node, "ArrayPattern");
case tt.braceL:
return this.parseObj(true);
default:
this.unexpected();
}
};
pp.parseBindingList = function (close, allowEmpty, allowTrailingComma) {
var elts = [],
first = true;
while (!this.eat(close)) {
if (first) first = false;else this.expect(tt.comma);
if (allowEmpty && this.type === tt.comma) {
elts.push(null);
} else if (allowTrailingComma && this.afterTrailingComma(close)) {
break;
} else if (this.type === tt.ellipsis) {
var rest = this.parseRest();
this.parseBindingListItem(rest);
elts.push(rest);
this.expect(close);
break;
} else {
var elem = this.parseMaybeDefault(this.start, this.startLoc);
this.parseBindingListItem(elem);
elts.push(elem);
}
}
return elts;
};
pp.parseBindingListItem = function (param) {
return param;
};
// Parses assignment pattern around given atom if possible.
pp.parseMaybeDefault = function (startPos, startLoc, left) {
if (Array.isArray(startPos)) {
if (this.options.locations && noCalls === undefined) {
// shift arguments to left by one
left = startLoc;
// flatten startPos
startLoc = startPos[1];
startPos = startPos[0];
}
}
left = left || this.parseBindingAtom();
if (!this.eat(tt.eq)) return left;
var node = this.startNodeAt(startPos, startLoc);
node.operator = "=";
node.left = left;
node.right = this.parseMaybeAssign();
return this.finishNode(node, "AssignmentPattern");
};
// Verify that a node is an lval — something that can be assigned
// to.
pp.checkLVal = function (expr, isBinding, checkClashes) {
switch (expr.type) {
case "Identifier":
if (this.strict && (reservedWords.strictBind(expr.name) || reservedWords.strict(expr.name))) this.raise(expr.start, (isBinding ? "Binding " : "Assigning to ") + expr.name + " in strict mode");
if (checkClashes) {
if (has(checkClashes, expr.name)) this.raise(expr.start, "Argument name clash in strict mode");
checkClashes[expr.name] = true;
}
break;
case "MemberExpression":
if (isBinding) this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression");
break;
case "ObjectPattern":
for (var i = 0; i < expr.properties.length; i++) {
this.checkLVal(expr.properties[i].value, isBinding, checkClashes);
}break;
case "ArrayPattern":
for (var i = 0; i < expr.elements.length; i++) {
var elem = expr.elements[i];
if (elem) this.checkLVal(elem, isBinding, checkClashes);
}
break;
case "AssignmentPattern":
this.checkLVal(expr.left, isBinding, checkClashes);
break;
case "RestElement":
this.checkLVal(expr.argument, isBinding, checkClashes);
break;
case "ParenthesizedExpression":
this.checkLVal(expr.expression, isBinding, checkClashes);
break;
default:
this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " rvalue");
}
};
},{"./identifier":7,"./state":13,"./tokentype":17,"./util":18}],10:[function(_dereq_,module,exports){
"use strict";
var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };
exports.__esModule = true;
var Parser = _dereq_("./state").Parser;
var SourceLocation = _dereq_("./location").SourceLocation;
// Start an AST node, attaching a start offset.
var pp = Parser.prototype;
var Node = exports.Node = function Node() {
_classCallCheck(this, Node);
};
pp.startNode = function () {
var node = new Node();
node.start = this.start;
if (this.options.locations) node.loc = new SourceLocation(this, this.startLoc);
if (this.options.directSourceFile) node.sourceFile = this.options.directSourceFile;
if (this.options.ranges) node.range = [this.start, 0];
return node;
};
pp.startNodeAt = function (pos, loc) {
var node = new Node();
if (Array.isArray(pos)) {
if (this.options.locations && loc === undefined) {
// flatten pos
loc = pos[1];
pos = pos[0];
}
}
node.start = pos;
if (this.options.locations) node.loc = new SourceLocation(this, loc);
if (this.options.directSourceFile) node.sourceFile = this.options.directSourceFile;
if (this.options.ranges) node.range = [pos, 0];
return node;
};
// Finish an AST node, adding `type` and `end` properties.
pp.finishNode = function (node, type) {
node.type = type;
node.end = this.lastTokEnd;
if (this.options.locations) node.loc.end = this.lastTokEndLoc;
if (this.options.ranges) node.range[1] = this.lastTokEnd;
return node;
};
// Finish node at given position
pp.finishNodeAt = function (node, type, pos, loc) {
node.type = type;
if (Array.isArray(pos)) {
if (this.options.locations && loc === undefined) {
// flatten pos
loc = pos[1];
pos = pos[0];
}
}
node.end = pos;
if (this.options.locations) node.loc.end = loc;
if (this.options.ranges) node.range[1] = pos;
return node;
};
},{"./location":8,"./state":13}],11:[function(_dereq_,module,exports){
// Interpret and default an options object
"use strict";
exports.getOptions = getOptions;
exports.__esModule = true;
var _util = _dereq_("./util");
var has = _util.has;
var isArray = _util.isArray;
var SourceLocation = _dereq_("./location").SourceLocation;
// A second optional argument can be given to further configure
// the parser process. These options are recognized:
var defaultOptions = {
// `ecmaVersion` indicates the ECMAScript version to parse. Must
// be either 3, or 5, or 6. This influences support for strict
// mode, the set of reserved words, support for getters and
// setters and other features.
ecmaVersion: 5,
// Source type ("script" or "module") for different semantics
sourceType: "script",
// `onInsertedSemicolon` can be a callback that will be called
// when a semicolon is automatically inserted. It will be passed
// th position of the comma as an offset, and if `locations` is
// enabled, it is given the location as a `{line, column}` object
// as second argument.
onInsertedSemicolon: null,
// `onTrailingComma` is similar to `onInsertedSemicolon`, but for
// trailing commas.
onTrailingComma: null,
// By default, reserved words are not enforced. Disable
// `allowReserved` to enforce them. When this option has the
// value "never", reserved words and keywords can also not be
// used as property names.
allowReserved: true,
// When enabled, a return at the top level is not considered an
// error.
allowReturnOutsideFunction: false,
// When enabled, import/export statements are not constrained to
// appearing at the top of the program.
allowImportExportEverywhere: false,
// When enabled, hashbang directive in the beginning of file
// is allowed and treated as a line comment.
allowHashBang: false,
// When `locations` is on, `loc` properties holding objects with
// `start` and `end` properties in `{line, column}` form (with
// line being 1-based and column 0-based) will be attached to the
// nodes.
locations: false,
// A function can be passed as `onToken` option, which will
// cause Acorn to call that function with object in the same
// format as tokenize() returns. Note that you are not
// allowed to call the parser from the callback—that will
// corrupt its internal state.
onToken: null,
// A function can be passed as `onComment` option, which will
// cause Acorn to call that function with `(block, text, start,
// end)` parameters whenever a comment is skipped. `block` is a
// boolean indicating whether this is a block (`/* */`) comment,
// `text` is the content of the comment, and `start` and `end` are
// character offsets that denote the start and end of the comment.
// When the `locations` option is on, two more parameters are
// passed, the full `{line, column}` locations of the start and
// end of the comments. Note that you are not allowed to call the
// parser from the callback—that will corrupt its internal state.
onComment: null,
// Nodes have their start and end characters offsets recorded in
// `start` and `end` properties (directly on the node, rather than
// the `loc` object, which holds line/column data. To also add a
// [semi-standardized][range] `range` property holding a `[start,
// end]` array with the same numbers, set the `ranges` option to
// `true`.
//
// [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
ranges: false,
// It is possible to parse multiple files into a single AST by
// passing the tree produced by parsing the first file as
// `program` option in subsequent parses. This will add the
// toplevel forms of the parsed file to the `Program` (top) node
// of an existing parse tree.
program: null,
// When `locations` is on, you can pass this to record the source
// file in every node's `loc` object.
sourceFile: null,
// This value, if given, is stored in every node, whether
// `locations` is on or off.
directSourceFile: null,
// When enabled, parenthesized expressions are represented by
// (non-standard) ParenthesizedExpression nodes
preserveParens: false,
plugins: {}
};exports.defaultOptions = defaultOptions;
function getOptions(opts) {
var options = {};
for (var opt in defaultOptions) {
options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt];
}if (isArray(options.onToken)) {
(function () {
var tokens = options.onToken;
options.onToken = function (token) {
return tokens.push(token);
};
})();
}
if (isArray(options.onComment)) options.onComment = pushComment(options, options.onComment);
return options;
}
function pushComment(options, array) {
return function (block, text, start, end, startLoc, endLoc) {
var comment = {
type: block ? "Block" : "Line",
value: text,
start: start,
end: end
};
if (options.locations) comment.loc = new SourceLocation(this, startLoc, endLoc);
if (options.ranges) comment.range = [start, end];
array.push(comment);
};
}
},{"./location":8,"./util":18}],12:[function(_dereq_,module,exports){
"use strict";
var tt = _dereq_("./tokentype").types;
var Parser = _dereq_("./state").Parser;
var lineBreak = _dereq_("./whitespace").lineBreak;
var pp = Parser.prototype;
// ## Parser utilities
// Test whether a statement node is the string literal `"use strict"`.
pp.isUseStrict = function (stmt) {
return this.options.ecmaVersion >= 5 && stmt.type === "ExpressionStatement" && stmt.expression.type === "Literal" && stmt.expression.value === "use strict";
};
// Predicate that tests whether the next token is of the given
// type, and if yes, consumes it as a side effect.
pp.eat = function (type) {
if (this.type === type) {
this.next();
return true;
} else {
return false;
}
};
// Tests whether parsed token is a contextual keyword.
pp.isContextual = function (name) {
return this.type === tt.name && this.value === name;
};
// Consumes contextual keyword if possible.
pp.eatContextual = function (name) {
return this.value === name && this.eat(tt.name);
};
// Asserts that following token is given contextual keyword.
pp.expectContextual = function (name) {
if (!this.eatContextual(name)) this.unexpected();
};
// Test whether a semicolon can be inserted at the current position.
pp.canInsertSemicolon = function () {
return this.type === tt.eof || this.type === tt.braceR || lineBreak.test(this.input.slice(this.lastTokEnd, this.start));
};
pp.insertSemicolon = function () {
if (this.canInsertSemicolon()) {
if (this.options.onInsertedSemicolon) this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc);
return true;
}
};
// Consume a semicolon, or, failing that, see if we are allowed to
// pretend that there is a semicolon at this position.
pp.semicolon = function () {
if (!this.eat(tt.semi) && !this.insertSemicolon()) this.unexpected();
};
pp.afterTrailingComma = function (tokType) {
if (this.type == tokType) {
if (this.options.onTrailingComma) this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc);
this.next();
return true;
}
};
// Expect a token of a given type. If found, consume it, otherwise,
// raise an unexpected token error.
pp.expect = function (type) {
this.eat(type) || this.unexpected();
};
// Raise an unexpected token error.
pp.unexpected = function (pos) {
this.raise(pos != null ? pos : this.start, "Unexpected token");
};
},{"./state":13,"./tokentype":17,"./whitespace":19}],13:[function(_dereq_,module,exports){
"use strict";
exports.Parser = Parser;
exports.__esModule = true;
var _identifier = _dereq_("./identifier");
var reservedWords = _identifier.reservedWords;
var keywords = _identifier.keywords;
var tt = _dereq_("./tokentype").types;
var lineBreak = _dereq_("./whitespace").lineBreak;
function Parser(options, input, startPos) {
this.options = options;
this.sourceFile = this.options.sourceFile || null;
this.isKeyword = keywords[this.options.ecmaVersion >= 6 ? 6 : 5];
this.isReservedWord = reservedWords[this.options.ecmaVersion];
this.input = input;
// Load plugins
this.loadPlugins(this.options.plugins);
// Set up token state
// The current position of the tokenizer in the input.
if (startPos) {
this.pos = startPos;
this.lineStart = Math.max(0, this.input.lastIndexOf("\n", startPos));
this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;
} else {
this.pos = this.lineStart = 0;
this.curLine = 1;
}
// Properties of the current token:
// Its type
this.type = tt.eof;
// For tokens that include more information than their type, the value
this.value = null;
// Its start and end offset
this.start = this.end = this.pos;
// And, if locations are used, the {line, column} object
// corresponding to those offsets
this.startLoc = this.endLoc = null;
// Position information for the previous token
this.lastTokEndLoc = this.lastTokStartLoc = null;
this.lastTokStart = this.lastTokEnd = this.pos;
// The context stack is used to superficially track syntactic
// context to predict whether a regular expression is allowed in a
// given position.
this.context = this.initialContext();
this.exprAllowed = true;
// Figure out if it's a module code.
this.strict = this.inModule = this.options.sourceType === "module";
// Used to signify the start of a potential arrow function
this.potentialArrowAt = -1;
// Flags to track whether we are in a function, a generator.
this.inFunction = this.inGenerator = false;
// Labels in scope.
this.labels = [];
// If enabled, skip leading hashbang line.
if (this.pos === 0 && this.options.allowHashBang && this.input.slice(0, 2) === "#!") this.skipLineComment(2);
}
Parser.prototype.extend = function (name, f) {
this[name] = f(this[name]);
};
// Registered plugins
var plugins = {};
exports.plugins = plugins;
Parser.prototype.loadPlugins = function (plugins) {
for (var _name in plugins) {
var plugin = exports.plugins[_name];
if (!plugin) throw new Error("Plugin '" + _name + "' not found");
plugin(this, plugins[_name]);
}
};
},{"./identifier":7,"./tokentype":17,"./whitespace":19}],14:[function(_dereq_,module,exports){
"use strict";
var tt = _dereq_("./tokentype").types;
var Parser = _dereq_("./state").Parser;
var lineBreak = _dereq_("./whitespace").lineBreak;
var pp = Parser.prototype;
// ### Statement parsing
// Parse a program. Initializes the parser, reads any number of
// statements, and wraps them in a Program node. Optionally takes a
// `program` argument. If present, the statements will be appended
// to its body instead of creating a new node.
pp.parseTopLevel = function (node) {
var first = true;
if (!node.body) node.body = [];
while (this.type !== tt.eof) {
var stmt = this.parseStatement(true, true);
node.body.push(stmt);
if (first && this.isUseStrict(stmt)) this.setStrict(true);
first = false;
}
this.next();
if (this.options.ecmaVersion >= 6) {
node.sourceType = this.options.sourceType;
}
return this.finishNode(node, "Program");
};
var loopLabel = { kind: "loop" },
switchLabel = { kind: "switch" };
// Parse a single statement.
//
// If expecting a statement and finding a slash operator, parse a
// regular expression literal. This is to handle cases like
// `if (foo) /blah/.exec(foo)`, where looking at the previous token
// does not help.
pp.parseStatement = function (declaration, topLevel) {
var starttype = this.type,
node = this.startNode();
// Most types of statements are recognized by the keyword they
// start with. Many are trivial to parse, some require a bit of
// complexity.
switch (starttype) {
case tt._break:case tt._continue:
return this.parseBreakContinueStatement(node, starttype.keyword);
case tt._debugger:
return this.parseDebuggerStatement(node);
case tt._do:
return this.parseDoStatement(node);
case tt._for:
return this.parseForStatement(node);
case tt._function:
if (!declaration && this.options.ecmaVersion >= 6) this.unexpected();
return this.parseFunctionStatement(node);
case tt._class:
if (!declaration) this.unexpected();
return this.parseClass(node, true);
case tt._if:
return this.parseIfStatement(node);
case tt._return:
return this.parseReturnStatement(node);
case tt._switch:
return this.parseSwitchStatement(node);
case tt._throw:
return this.parseThrowStatement(node);
case tt._try:
return this.parseTryStatement(node);
case tt._let:case tt._const:
if (!declaration) this.unexpected(); // NOTE: falls through to _var
case tt._var:
return this.parseVarStatement(node, starttype);
case tt._while:
return this.parseWhileStatement(node);
case tt._with:
return this.parseWithStatement(node);
case tt.braceL:
return this.parseBlock();
case tt.semi:
return this.parseEmptyStatement(node);
case tt._export:
case tt._import:
if (!this.options.allowImportExportEverywhere) {
if (!topLevel) this.raise(this.start, "'import' and 'export' may only appear at the top level");
if (!this.inModule) this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'");
}
return starttype === tt._import ? this.parseImport(node) : this.parseExport(node);
// If the statement does not start with a statement keyword or a
// brace, it's an ExpressionStatement or LabeledStatement. We
// simply start parsing an expression, and afterwards, if the
// next token is a colon and the expression was a simple
// Identifier node, we switch to interpreting it as a label.
default:
var maybeName = this.value,
expr = this.parseExpression();
if (starttype === tt.name && expr.type === "Identifier" && this.eat(tt.colon)) return this.parseLabeledStatement(node, maybeName, expr);else return this.parseExpressionStatement(node, expr);
}
};
pp.parseBreakContinueStatement = function (node, keyword) {
var isBreak = keyword == "break";
this.next();
if (this.eat(tt.semi) || this.insertSemicolon()) node.label = null;else if (this.type !== tt.name) this.unexpected();else {
node.label = this.parseIdent();
this.semicolon();
}
// Verify that there is an actual destination to break or
// continue to.
for (var i = 0; i < this.labels.length; ++i) {
var lab = this.labels[i];
if (node.label == null || lab.name === node.label.name) {
if (lab.kind != null && (isBreak || lab.kind === "loop")) break;
if (node.label && isBreak) break;
}
}
if (i === this.labels.length) this.raise(node.start, "Unsyntactic " + keyword);
return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement");
};
pp.parseDebuggerStatement = function (node) {
this.next();
this.semicolon();
return this.finishNode(node, "DebuggerStatement");
};
pp.parseDoStatement = function (node) {
this.next();
this.labels.push(loopLabel);
node.body = this.parseStatement(false);
this.labels.pop();
this.expect(tt._while);
node.test = this.parseParenExpression();
if (this.options.ecmaVersion >= 6) this.eat(tt.semi);else this.semicolon();
return this.finishNode(node, "DoWhileStatement");
};
// Disambiguating between a `for` and a `for`/`in` or `for`/`of`
// loop is non-trivial. Basically, we have to parse the init `var`
// statement or expression, disallowing the `in` operator (see
// the second parameter to `parseExpression`), and then check
// whether the next token is `in` or `of`. When there is no init
// part (semicolon immediately after the opening parenthesis), it
// is a regular `for` loop.
pp.parseForStatement = function (node) {
this.next();
this.labels.push(loopLabel);
this.expect(tt.parenL);
if (this.type === tt.semi) return this.parseFor(node, null);
if (this.type === tt._var || this.type === tt._let || this.type === tt._const) {
var _init = this.startNode(),
varKind = this.type;
this.next();
this.parseVar(_init, true, varKind);
this.finishNode(_init, "VariableDeclaration");
if ((this.type === tt._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) && _init.declarations.length === 1 && !(varKind !== tt._var && _init.declarations[0].init)) return this.parseForIn(node, _init);
return this.parseFor(node, _init);
}
var refShorthandDefaultPos = { start: 0 };
var init = this.parseExpression(true, refShorthandDefaultPos);
if (this.type === tt._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) {
this.toAssignable(init);
this.checkLVal(init);
return this.parseForIn(node, init);
} else if (refShorthandDefaultPos.start) {
this.unexpected(refShorthandDefaultPos.start);
}
return this.parseFor(node, init);
};
pp.parseFunctionStatement = function (node) {
this.next();
return this.parseFunction(node, true);
};
pp.parseIfStatement = function (node) {
this.next();
node.test = this.parseParenExpression();
node.consequent = this.parseStatement(false);
node.alternate = this.eat(tt._else) ? this.parseStatement(false) : null;
return this.finishNode(node, "IfStatement");
};
pp.parseReturnStatement = function (node) {
if (!this.inFunction && !this.options.allowReturnOutsideFunction) this.raise(this.start, "'return' outside of function");
this.next();
// In `return` (and `break`/`continue`), the keywords with
// optional arguments, we eagerly look for a semicolon or the
// possibility to insert one.
if (this.eat(tt.semi) || this.insertSemicolon()) node.argument = null;else {
node.argument = this.parseExpression();this.semicolon();
}
return this.finishNode(node, "ReturnStatement");
};
pp.parseSwitchStatement = function (node) {
this.next();
node.discriminant = this.parseParenExpression();
node.cases = [];
this.expect(tt.braceL);
this.labels.push(switchLabel);
// Statements under must be grouped (by label) in SwitchCase
// nodes. `cur` is used to keep the node that we are currently
// adding statements to.
for (var cur, sawDefault; this.type != tt.braceR;) {
if (this.type === tt._case || this.type === tt._default) {
var isCase = this.type === tt._case;
if (cur) this.finishNode(cur, "SwitchCase");
node.cases.push(cur = this.startNode());
cur.consequent = [];
this.next();
if (isCase) {
cur.test = this.parseExpression();
} else {
if (sawDefault) this.raise(this.lastTokStart, "Multiple default clauses");
sawDefault = true;
cur.test = null;
}
this.expect(tt.colon);
} else {
if (!cur) this.unexpected();
cur.consequent.push(this.parseStatement(true));
}
}
if (cur) this.finishNode(cur, "SwitchCase");
this.next(); // Closing brace
this.labels.pop();
return this.finishNode(node, "SwitchStatement");
};
pp.parseThrowStatement = function (node) {
this.next();
if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) this.raise(this.lastTokEnd, "Illegal newline after throw");
node.argument = this.parseExpression();
this.semicolon();
return this.finishNode(node, "ThrowStatement");
};
// Reused empty array added for node fields that are always empty.
var empty = [];
pp.parseTryStatement = function (node) {
this.next();
node.block = this.parseBlock();
node.handler = null;
if (this.type === tt._catch) {
var clause = this.startNode();
this.next();
this.expect(tt.parenL);
clause.param = this.parseBindingAtom();
this.checkLVal(clause.param, true);
this.expect(tt.parenR);
clause.guard = null;
clause.body = this.parseBlock();
node.handler = this.finishNode(clause, "CatchClause");
}
node.guardedHandlers = empty;
node.finalizer = this.eat(tt._finally) ? this.parseBlock() : null;
if (!node.handler && !node.finalizer) this.raise(node.start, "Missing catch or finally clause");
return this.finishNode(node, "TryStatement");
};
pp.parseVarStatement = function (node, kind) {
this.next();
this.parseVar(node, false, kind);
this.semicolon();
return this.finishNode(node, "VariableDeclaration");
};
pp.parseWhileStatement = function (node) {
this.next();
node.test = this.parseParenExpression();
this.labels.push(loopLabel);
node.body = this.parseStatement(false);
this.labels.pop();
return this.finishNode(node, "WhileStatement");
};
pp.parseWithStatement = function (node) {
if (this.strict) this.raise(this.start, "'with' in strict mode");
this.next();
node.object = this.parseParenExpression();
node.body = this.parseStatement(false);
return this.finishNode(node, "WithStatement");
};
pp.parseEmptyStatement = function (node) {
this.next();
return this.finishNode(node, "EmptyStatement");
};
pp.parseLabeledStatement = function (node, maybeName, expr) {
for (var i = 0; i < this.labels.length; ++i) {
if (this.labels[i].name === maybeName) this.raise(expr.start, "Label '" + maybeName + "' is already declared");
}var kind = this.type.isLoop ? "loop" : this.type === tt._switch ? "switch" : null;
this.labels.push({ name: maybeName, kind: kind });
node.body = this.parseStatement(true);
this.labels.pop();
node.label = expr;
return this.finishNode(node, "LabeledStatement");
};
pp.parseExpressionStatement = function (node, expr) {
node.expression = expr;
this.semicolon();
return this.finishNode(node, "ExpressionStatement");
};
// Parse a semicolon-enclosed block of statements, handling `"use
// strict"` declarations when `allowStrict` is true (used for
// function bodies).
pp.parseBlock = function (allowStrict) {
var node = this.startNode(),
first = true,
oldStrict = undefined;
node.body = [];
this.expect(tt.braceL);
while (!this.eat(tt.braceR)) {
var stmt = this.parseStatement(true);
node.body.push(stmt);
if (first && allowStrict && this.isUseStrict(stmt)) {
oldStrict = this.strict;
this.setStrict(this.strict = true);
}
first = false;
}
if (oldStrict === false) this.setStrict(false);
return this.finishNode(node, "BlockStatement");
};
// Parse a regular `for` loop. The disambiguation code in
// `parseStatement` will already have parsed the init statement or
// expression.
pp.parseFor = function (node, init) {
node.init = init;
this.expect(tt.semi);
node.test = this.type === tt.semi ? null : this.parseExpression();
this.expect(tt.semi);
node.update = this.type === tt.parenR ? null : this.parseExpression();
this.expect(tt.parenR);
node.body = this.parseStatement(false);
this.labels.pop();
return this.finishNode(node, "ForStatement");
};
// Parse a `for`/`in` and `for`/`of` loop, which are almost
// same from parser's perspective.
pp.parseForIn = function (node, init) {
var type = this.type === tt._in ? "ForInStatement" : "ForOfStatement";
this.next();
node.left = init;
node.right = this.parseExpression();
this.expect(tt.parenR);
node.body = this.parseStatement(false);
this.labels.pop();
return this.finishNode(node, type);
};
// Parse a list of variable declarations.
pp.parseVar = function (node, isFor, kind) {
node.declarations = [];
node.kind = kind.keyword;
for (;;) {
var decl = this.startNode();
this.parseVarId(decl);
if (this.eat(tt.eq)) {
decl.init = this.parseMaybeAssign(isFor);
} else if (kind === tt._const && !(this.type === tt._in || this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
this.unexpected();
} else if (decl.id.type != "Identifier" && !(isFor && (this.type === tt._in || this.isContextual("of")))) {
this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value");
} else {
decl.init = null;
}
node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
if (!this.eat(tt.comma)) break;
}
return node;
};
pp.parseVarId = function (decl) {
decl.id = this.parseBindingAtom();
this.checkLVal(decl.id, true);
};
// Parse a function declaration or literal (depending on the
// `isStatement` parameter).
pp.parseFunction = function (node, isStatement, allowExpressionBody) {
this.initFunction(node);
if (this.options.ecmaVersion >= 6) node.generator = this.eat(tt.star);
if (isStatement || this.type === tt.name) node.id = this.parseIdent();
this.parseFunctionParams(node);
this.parseFunctionBody(node, allowExpressionBody);
return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression");
};
pp.parseFunctionParams = function (node) {
this.expect(tt.parenL);
node.params = this.parseBindingList(tt.parenR, false, false);
};
// Parse a class declaration or literal (depending on the
// `isStatement` parameter).
pp.parseClass = function (node, isStatement) {
this.next();
this.parseClassId(node, isStatement);
this.parseClassSuper(node);
var classBody = this.startNode();
var hadConstructor = false;
classBody.body = [];
this.expect(tt.braceL);
while (!this.eat(tt.braceR)) {
if (this.eat(tt.semi)) continue;
var method = this.startNode();
var isGenerator = this.eat(tt.star);
var isMaybeStatic = this.type === tt.name && this.value === "static";
this.parsePropertyName(method);
method["static"] = isMaybeStatic && this.type !== tt.parenL;
if (method["static"]) {
if (isGenerator) this.unexpected();
isGenerator = this.eat(tt.star);
this.parsePropertyName(method);
}
method.kind = "method";
if (!method.computed) {
var key = method.key;
var isGetSet = false;
if (!isGenerator && key.type === "Identifier" && this.type !== tt.parenL && (key.name === "get" || key.name === "set")) {
isGetSet = true;
method.kind = key.name;
key = this.parsePropertyName(method);
}
if (!method["static"] && (key.type === "Identifier" && key.name === "constructor" || key.type === "Literal" && key.value === "constructor")) {
if (hadConstructor) this.raise(key.start, "Duplicate constructor in the same class");
if (isGetSet) this.raise(key.start, "Constructor can't have get/set modifier");
if (isGenerator) this.raise(key.start, "Constructor can't be a generator");
method.kind = "constructor";
hadConstructor = true;
}
}
this.parseClassMethod(classBody, method, isGenerator);
}
node.body = this.finishNode(classBody, "ClassBody");
return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression");
};
pp.parseClassMethod = function (classBody, method, isGenerator) {
method.value = this.parseMethod(isGenerator);
classBody.body.push(this.finishNode(method, "MethodDefinition"));
};
pp.parseClassId = function (node, isStatement) {
node.id = this.type === tt.name ? this.parseIdent() : isStatement ? this.unexpected() : null;
};
pp.parseClassSuper = function (node) {
node.superClass = this.eat(tt._extends) ? this.parseExprSubscripts() : null;
};
// Parses module export declaration.
pp.parseExport = function (node) {
this.next();
// export * from '...'
if (this.eat(tt.star)) {
this.expectContextual("from");
node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected();
this.semicolon();
return this.finishNode(node, "ExportAllDeclaration");
}
if (this.eat(tt._default)) {
// export default ...
var expr = this.parseMaybeAssign();
var needsSemi = true;
if (expr.type == "FunctionExpression" || expr.type == "ClassExpression") {
needsSemi = false;
if (expr.id) {
expr.type = expr.type == "FunctionExpression" ? "FunctionDeclaration" : "ClassDeclaration";
}
}
node.declaration = expr;
if (needsSemi) this.semicolon();
return this.finishNode(node, "ExportDefaultDeclaration");
}
// export var|const|let|function|class ...
if (this.shouldParseExportStatement()) {
node.declaration = this.parseStatement(true);
node.specifiers = [];
node.source = null;
} else {
// export { x, y as z } [from '...']
node.declaration = null;
node.specifiers = this.parseExportSpecifiers();
if (this.eatContextual("from")) {
node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected();
} else {
node.source = null;
}
this.semicolon();
}
return this.finishNode(node, "ExportNamedDeclaration");
};
pp.shouldParseExportStatement = function () {
return this.type.keyword;
};
// Parses a comma-separated list of module exports.
pp.parseExportSpecifiers = function () {
var nodes = [],
first = true;
// export { x, y as z } [from '...']
this.expect(tt.braceL);
while (!this.eat(tt.braceR)) {
if (!first) {
this.expect(tt.comma);
if (this.afterTrailingComma(tt.braceR)) break;
} else first = false;
var node = this.startNode();
node.local = this.parseIdent(this.type === tt._default);
node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local;
nodes.push(this.finishNode(node, "ExportSpecifier"));
}
return nodes;
};
// Parses import declaration.
pp.parseImport = function (node) {
this.next();
// import '...'
if (this.type === tt.string) {
node.specifiers = empty;
node.source = this.parseExprAtom();
node.kind = "";
} else {
node.specifiers = this.parseImportSpecifiers();
this.expectContextual("from");
node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected();
}
this.semicolon();
return this.finishNode(node, "ImportDeclaration");
};
// Parses a comma-separated list of module imports.
pp.parseImportSpecifiers = function () {
var nodes = [],
first = true;
if (this.type === tt.name) {
// import defaultObj, { x, y as z } from '...'
var node = this.startNode();
node.local = this.parseIdent();
this.checkLVal(node.local, true);
nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
if (!this.eat(tt.comma)) return nodes;
}
if (this.type === tt.star) {
var node = this.startNode();
this.next();
this.expectContextual("as");
node.local = this.parseIdent();
this.checkLVal(node.local, true);
nodes.push(this.finishNode(node, "ImportNamespaceSpecifier"));
return nodes;
}
this.expect(tt.braceL);
while (!this.eat(tt.braceR)) {
if (!first) {
this.expect(tt.comma);
if (this.afterTrailingComma(tt.braceR)) break;
} else first = false;
var node = this.startNode();
node.imported = this.parseIdent(true);
node.local = this.eatContextual("as") ? this.parseIdent() : node.imported;
this.checkLVal(node.local, true);
nodes.push(this.finishNode(node, "ImportSpecifier"));
}
return nodes;
};
},{"./state":13,"./tokentype":17,"./whitespace":19}],15:[function(_dereq_,module,exports){
"use strict";
var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };
exports.__esModule = true;
// The algorithm used to determine whether a regexp can appear at a
// given point in the program is loosely based on sweet.js' approach.
// See https://github.com/mozilla/sweet.js/wiki/design
var Parser = _dereq_("./state").Parser;
var tt = _dereq_("./tokentype").types;
var lineBreak = _dereq_("./whitespace").lineBreak;
var TokContext = exports.TokContext = function TokContext(token, isExpr, preserveSpace, override) {
_classCallCheck(this, TokContext);
this.token = token;
this.isExpr = isExpr;
this.preserveSpace = preserveSpace;
this.override = override;
};
var types = {
b_stat: new TokContext("{", false),
b_expr: new TokContext("{", true),
b_tmpl: new TokContext("${", true),
p_stat: new TokContext("(", false),
p_expr: new TokContext("(", true),
q_tmpl: new TokContext("`", true, true, function (p) {
return p.readTmplToken();
}),
f_expr: new TokContext("function", true)
};
exports.types = types;
var pp = Parser.prototype;
pp.initialContext = function () {
return [types.b_stat];
};
pp.braceIsBlock = function (prevType) {
var parent = undefined;
if (prevType === tt.colon && (parent = this.curContext()).token == "{") return !parent.isExpr;
if (prevType === tt._return) return lineBreak.test(this.input.slice(this.lastTokEnd, this.start));
if (prevType === tt._else || prevType === tt.semi || prevType === tt.eof) return true;
if (prevType == tt.braceL) return this.curContext() === types.b_stat;
return !this.exprAllowed;
};
pp.updateContext = function (prevType) {
var update = undefined,
type = this.type;
if (type.keyword && prevType == tt.dot) this.exprAllowed = false;else if (update = type.updateContext) update.call(this, prevType);else this.exprAllowed = type.beforeExpr;
};
// Token-specific context update code
tt.parenR.updateContext = tt.braceR.updateContext = function () {
if (this.context.length == 1) {
this.exprAllowed = true;
return;
}
var out = this.context.pop();
if (out === types.b_stat && this.curContext() === types.f_expr) {
this.context.pop();
this.exprAllowed = false;
} else if (out === types.b_tmpl) {
this.exprAllowed = true;
} else {
this.exprAllowed = !out.isExpr;
}
};
tt.braceL.updateContext = function (prevType) {
this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr);
this.exprAllowed = true;
};
tt.dollarBraceL.updateContext = function () {
this.context.push(types.b_tmpl);
this.exprAllowed = true;
};
tt.parenL.updateContext = function (prevType) {
var statementParens = prevType === tt._if || prevType === tt._for || prevType === tt._with || prevType === tt._while;
this.context.push(statementParens ? types.p_stat : types.p_expr);
this.exprAllowed = true;
};
tt.incDec.updateContext = function () {};
tt._function.updateContext = function () {
if (this.curContext() !== types.b_stat) this.context.push(types.f_expr);
this.exprAllowed = false;
};
tt.backQuote.updateContext = function () {
if (this.curContext() === types.q_tmpl) this.context.pop();else this.context.push(types.q_tmpl);
this.exprAllowed = false;
};
// tokExprAllowed stays unchanged
},{"./state":13,"./tokentype":17,"./whitespace":19}],16:[function(_dereq_,module,exports){
"use strict";
var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };
exports.__esModule = true;
var _identifier = _dereq_("./identifier");
var isIdentifierStart = _identifier.isIdentifierStart;
var isIdentifierChar = _identifier.isIdentifierChar;
var _tokentype = _dereq_("./tokentype");
var tt = _tokentype.types;
var keywordTypes = _tokentype.keywords;
var Parser = _dereq_("./state").Parser;
var SourceLocation = _dereq_("./location").SourceLocation;
var _whitespace = _dereq_("./whitespace");
var lineBreak = _whitespace.lineBreak;
var lineBreakG = _whitespace.lineBreakG;
var isNewLine = _whitespace.isNewLine;
var nonASCIIwhitespace = _whitespace.nonASCIIwhitespace;
// Object type used to represent tokens. Note that normally, tokens
// simply exist as properties on the parser object. This is only
// used for the onToken callback and the external tokenizer.
var Token = exports.Token = function Token(p) {
_classCallCheck(this, Token);
this.type = p.type;
this.value = p.value;
this.start = p.start;
this.end = p.end;
if (p.options.locations) this.loc = new SourceLocation(p, p.startLoc, p.endLoc);
if (p.options.ranges) this.range = [p.start, p.end];
};
// ## Tokenizer
var pp = Parser.prototype;
// Are we running under Rhino?
var isRhino = typeof Packages !== "undefined";
// Move to the next token
pp.next = function () {
if (this.options.onToken) this.options.onToken(new Token(this));
this.lastTokEnd = this.end;
this.lastTokStart = this.start;
this.lastTokEndLoc = this.endLoc;
this.lastTokStartLoc = this.startLoc;
this.nextToken();
};
pp.getToken = function () {
this.next();
return new Token(this);
};
// If we're in an ES6 environment, make parsers iterable
if (typeof Symbol !== "undefined") pp[Symbol.iterator] = function () {
var self = this;
return { next: function next() {
var token = self.getToken();
return {
done: token.type === tt.eof,
value: token
};
} };
};
// Toggle strict mode. Re-reads the next number or string to please
// pedantic tests (`"use strict"; 010;` should fail).
pp.setStrict = function (strict) {
this.strict = strict;
if (this.type !== tt.num && this.type !== tt.string) return;
this.pos = this.start;
if (this.options.locations) {
while (this.pos < this.lineStart) {
this.lineStart = this.input.lastIndexOf("\n", this.lineStart - 2) + 1;
--this.curLine;
}
}
this.nextToken();
};
pp.curContext = function () {
return this.context[this.context.length - 1];
};
// Read a single token, updating the parser object's token-related
// properties.
pp.nextToken = function () {
var curContext = this.curContext();
if (!curContext || !curContext.preserveSpace) this.skipSpace();
this.start = this.pos;
if (this.options.locations) this.startLoc = this.curPosition();
if (this.pos >= this.input.length) return this.finishToken(tt.eof);
if (curContext.override) return curContext.override(this);else this.readToken(this.fullCharCodeAtPos());
};
pp.readToken = function (code) {
// Identifier or keyword. '\uXXXX' sequences are allowed in
// identifiers, so '\' also dispatches to that.
if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */) return this.readWord();
return this.getTokenFromCode(code);
};
pp.fullCharCodeAtPos = function () {
var code = this.input.charCodeAt(this.pos);
if (code <= 55295 || code >= 57344) return code;
var next = this.input.charCodeAt(this.pos + 1);
return (code << 10) + next - 56613888;
};
pp.skipBlockComment = function () {
var startLoc = this.options.onComment && this.options.locations && this.curPosition();
var start = this.pos,
end = this.input.indexOf("*/", this.pos += 2);
if (end === -1) this.raise(this.pos - 2, "Unterminated comment");
this.pos = end + 2;
if (this.options.locations) {
lineBreakG.lastIndex = start;
var match = undefined;
while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) {
++this.curLine;
this.lineStart = match.index + match[0].length;
}
}
if (this.options.onComment) this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos, startLoc, this.options.locations && this.curPosition());
};
pp.skipLineComment = function (startSkip) {
var start = this.pos;
var startLoc = this.options.onComment && this.options.locations && this.curPosition();
var ch = this.input.charCodeAt(this.pos += startSkip);
while (this.pos < this.input.length && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) {
++this.pos;
ch = this.input.charCodeAt(this.pos);
}
if (this.options.onComment) this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos, startLoc, this.options.locations && this.curPosition());
};
// Called at the start of the parse and after every token. Skips
// whitespace and comments, and.
pp.skipSpace = function () {
while (this.pos < this.input.length) {
var ch = this.input.charCodeAt(this.pos);
if (ch === 32) {
// ' '
++this.pos;
} else if (ch === 13) {
++this.pos;
var next = this.input.charCodeAt(this.pos);
if (next === 10) {
++this.pos;
}
if (this.options.locations) {
++this.curLine;
this.lineStart = this.pos;
}
} else if (ch === 10 || ch === 8232 || ch === 8233) {
++this.pos;
if (this.options.locations) {
++this.curLine;
this.lineStart = this.pos;
}
} else if (ch > 8 && ch < 14) {
++this.pos;
} else if (ch === 47) {
// '/'
var next = this.input.charCodeAt(this.pos + 1);
if (next === 42) {
// '*'
this.skipBlockComment();
} else if (next === 47) {
// '/'
this.skipLineComment(2);
} else break;
} else if (ch === 160) {
// '\xa0'
++this.pos;
} else if (ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
++this.pos;
} else {
break;
}
}
};
// Called at the end of every token. Sets `end`, `val`, and
// maintains `context` and `exprAllowed`, and skips the space after
// the token, so that the next one's `start` will point at the
// right position.
pp.finishToken = function (type, val) {
this.end = this.pos;
if (this.options.locations) this.endLoc = this.curPosition();
var prevType = this.type;
this.type = type;
this.value = val;
this.updateContext(prevType);
};
// ### Token reading
// This is the function that is called to fetch the next token. It
// is somewhat obscure, because it works in character codes rather
// than characters, and because operator parsing has been inlined
// into it.
//
// All in the name of speed.
//
pp.readToken_dot = function () {
var next = this.input.charCodeAt(this.pos + 1);
if (next >= 48 && next <= 57) return this.readNumber(true);
var next2 = this.input.charCodeAt(this.pos + 2);
if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) {
// 46 = dot '.'
this.pos += 3;
return this.finishToken(tt.ellipsis);
} else {
++this.pos;
return this.finishToken(tt.dot);
}
};
pp.readToken_slash = function () {
// '/'
var next = this.input.charCodeAt(this.pos + 1);
if (this.exprAllowed) {
++this.pos;return this.readRegexp();
}
if (next === 61) return this.finishOp(tt.assign, 2);
return this.finishOp(tt.slash, 1);
};
pp.readToken_mult_modulo = function (code) {
// '%*'
var next = this.input.charCodeAt(this.pos + 1);
if (next === 61) return this.finishOp(tt.assign, 2);
return this.finishOp(code === 42 ? tt.star : tt.modulo, 1);
};
pp.readToken_pipe_amp = function (code) {
// '|&'
var next = this.input.charCodeAt(this.pos + 1);
if (next === code) return this.finishOp(code === 124 ? tt.logicalOR : tt.logicalAND, 2);
if (next === 61) return this.finishOp(tt.assign, 2);
return this.finishOp(code === 124 ? tt.bitwiseOR : tt.bitwiseAND, 1);
};
pp.readToken_caret = function () {
// '^'
var next = this.input.charCodeAt(this.pos + 1);
if (next === 61) return this.finishOp(tt.assign, 2);
return this.finishOp(tt.bitwiseXOR, 1);
};
pp.readToken_plus_min = function (code) {
// '+-'
var next = this.input.charCodeAt(this.pos + 1);
if (next === code) {
if (next == 45 && this.input.charCodeAt(this.pos + 2) == 62 && lineBreak.test(this.input.slice(this.lastTokEnd, this.pos))) {
// A `-->` line comment
this.skipLineComment(3);
this.skipSpace();
return this.nextToken();
}
return this.finishOp(tt.incDec, 2);
}
if (next === 61) return this.finishOp(tt.assign, 2);
return this.finishOp(tt.plusMin, 1);
};
pp.readToken_lt_gt = function (code) {
// '<>'
var next = this.input.charCodeAt(this.pos + 1);
var size = 1;
if (next === code) {
size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(tt.assign, size + 1);
return this.finishOp(tt.bitShift, size);
}
if (next == 33 && code == 60 && this.input.charCodeAt(this.pos + 2) == 45 && this.input.charCodeAt(this.pos + 3) == 45) {
if (this.inModule) this.unexpected();
// `<!--`, an XML-style comment that should be interpreted as a line comment
this.skipLineComment(4);
this.skipSpace();
return this.nextToken();
}
if (next === 61) size = this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2;
return this.finishOp(tt.relational, size);
};
pp.readToken_eq_excl = function (code) {
// '=!'
var next = this.input.charCodeAt(this.pos + 1);
if (next === 61) return this.finishOp(tt.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2);
if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) {
// '=>'
this.pos += 2;
return this.finishToken(tt.arrow);
}
return this.finishOp(code === 61 ? tt.eq : tt.prefix, 1);
};
pp.getTokenFromCode = function (code) {
switch (code) {
// The interpretation of a dot depends on whether it is followed
// by a digit or another two dots.
case 46:
// '.'
return this.readToken_dot();
// Punctuation tokens.
case 40:
++this.pos;return this.finishToken(tt.parenL);
case 41:
++this.pos;return this.finishToken(tt.parenR);
case 59:
++this.pos;return this.finishToken(tt.semi);
case 44:
++this.pos;return this.finishToken(tt.comma);
case 91:
++this.pos;return this.finishToken(tt.bracketL);
case 93:
++this.pos;return this.finishToken(tt.bracketR);
case 123:
++this.pos;return this.finishToken(tt.braceL);
case 125:
++this.pos;return this.finishToken(tt.braceR);
case 58:
++this.pos;return this.finishToken(tt.colon);
case 63:
++this.pos;return this.finishToken(tt.question);
case 96:
// '`'
if (this.options.ecmaVersion < 6) break;
++this.pos;
return this.finishToken(tt.backQuote);
case 48:
// '0'
var next = this.input.charCodeAt(this.pos + 1);
if (next === 120 || next === 88) return this.readRadixNumber(16); // '0x', '0X' - hex number
if (this.options.ecmaVersion >= 6) {
if (next === 111 || next === 79) return this.readRadixNumber(8); // '0o', '0O' - octal number
if (next === 98 || next === 66) return this.readRadixNumber(2); // '0b', '0B' - binary number
}
// Anything else beginning with a digit is an integer, octal
// number, or float.
case 49:case 50:case 51:case 52:case 53:case 54:case 55:case 56:case 57:
// 1-9
return this.readNumber(false);
// Quotes produce strings.
case 34:case 39:
// '"', "'"
return this.readString(code);
// Operators are parsed inline in tiny state machines. '=' (61) is
// often referred to. `finishOp` simply skips the amount of
// characters it is given as second argument, and returns a token
// of the type given by its first argument.
case 47:
// '/'
return this.readToken_slash();
case 37:case 42:
// '%*'
return this.readToken_mult_modulo(code);
case 124:case 38:
// '|&'
return this.readToken_pipe_amp(code);
case 94:
// '^'
return this.readToken_caret();
case 43:case 45:
// '+-'
return this.readToken_plus_min(code);
case 60:case 62:
// '<>'
return this.readToken_lt_gt(code);
case 61:case 33:
// '=!'
return this.readToken_eq_excl(code);
case 126:
// '~'
return this.finishOp(tt.prefix, 1);
}
this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'");
};
pp.finishOp = function (type, size) {
var str = this.input.slice(this.pos, this.pos + size);
this.pos += size;
return this.finishToken(type, str);
};
var regexpUnicodeSupport = false;
try {
new RegExp("￿", "u");regexpUnicodeSupport = true;
} catch (e) {}
// Parse a regular expression. Some context-awareness is necessary,
// since a '/' inside a '[]' set does not end the expression.
pp.readRegexp = function () {
var escaped = undefined,
inClass = undefined,
start = this.pos;
for (;;) {
if (this.pos >= this.input.length) this.raise(start, "Unterminated regular expression");
var ch = this.input.charAt(this.pos);
if (lineBreak.test(ch)) this.raise(start, "Unterminated regular expression");
if (!escaped) {
if (ch === "[") inClass = true;else if (ch === "]" && inClass) inClass = false;else if (ch === "/" && !inClass) break;
escaped = ch === "\\";
} else escaped = false;
++this.pos;
}
var content = this.input.slice(start, this.pos);
++this.pos;
// Need to use `readWord1` because '\uXXXX' sequences are allowed
// here (don't ask).
var mods = this.readWord1();
var tmp = content;
if (mods) {
var validFlags = /^[gmsiy]*$/;
if (this.options.ecmaVersion >= 6) validFlags = /^[gmsiyu]*$/;
if (!validFlags.test(mods)) this.raise(start, "Invalid regular expression flag");
if (mods.indexOf("u") >= 0 && !regexpUnicodeSupport) {
// Replace each astral symbol and every Unicode escape sequence that
// possibly represents an astral symbol or a paired surrogate with a
// single ASCII symbol to avoid throwing on regular expressions that
// are only valid in combination with the `/u` flag.
// Note: replacing with the ASCII symbol `x` might cause false
// negatives in unlikely scenarios. For example, `[\u{61}-b]` is a
// perfectly valid pattern that is equivalent to `[a-b]`, but it would
// be replaced by `[x-b]` which throws an error.
tmp = tmp.replace(/\\u([a-fA-F0-9]{4})|\\u\{([0-9a-fA-F]+)\}|[\uD800-\uDBFF][\uDC00-\uDFFF]/g, "x");
}
}
// Detect invalid regular expressions.
var value = null;
// Rhino's regular expression parser is flaky and throws uncatchable exceptions,
// so don't do detection if we are running under Rhino
if (!isRhino) {
try {
new RegExp(tmp);
} catch (e) {
if (e instanceof SyntaxError) this.raise(start, "Error parsing regular expression: " + e.message);
this.raise(e);
}
// Get a regular expression object for this pattern-flag pair, or `null` in
// case the current environment doesn't support the flags it uses.
try {
value = new RegExp(content, mods);
} catch (err) {}
}
return this.finishToken(tt.regexp, { pattern: content, flags: mods, value: value });
};
// Read an integer in the given radix. Return null if zero digits
// were read, the integer value otherwise. When `len` is given, this
// will return `null` unless the integer has exactly `len` digits.
pp.readInt = function (radix, len) {
var start = this.pos,
total = 0;
for (var i = 0, e = len == null ? Infinity : len; i < e; ++i) {
var code = this.input.charCodeAt(this.pos),
val = undefined;
if (code >= 97) val = code - 97 + 10; // a
else if (code >= 65) val = code - 65 + 10; // A
else if (code >= 48 && code <= 57) val = code - 48; // 0-9
else val = Infinity;
if (val >= radix) break;
++this.pos;
total = total * radix + val;
}
if (this.pos === start || len != null && this.pos - start !== len) return null;
return total;
};
pp.readRadixNumber = function (radix) {
this.pos += 2; // 0x
var val = this.readInt(radix);
if (val == null) this.raise(this.start + 2, "Expected number in radix " + radix);
if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number");
return this.finishToken(tt.num, val);
};
// Read an integer, octal integer, or floating-point number.
pp.readNumber = function (startsWithDot) {
var start = this.pos,
isFloat = false,
octal = this.input.charCodeAt(this.pos) === 48;
if (!startsWithDot && this.readInt(10) === null) this.raise(start, "Invalid number");
if (this.input.charCodeAt(this.pos) === 46) {
++this.pos;
this.readInt(10);
isFloat = true;
}
var next = this.input.charCodeAt(this.pos);
if (next === 69 || next === 101) {
// 'eE'
next = this.input.charCodeAt(++this.pos);
if (next === 43 || next === 45) ++this.pos; // '+-'
if (this.readInt(10) === null) this.raise(start, "Invalid number");
isFloat = true;
}
if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number");
var str = this.input.slice(start, this.pos),
val = undefined;
if (isFloat) val = parseFloat(str);else if (!octal || str.length === 1) val = parseInt(str, 10);else if (/[89]/.test(str) || this.strict) this.raise(start, "Invalid number");else val = parseInt(str, 8);
return this.finishToken(tt.num, val);
};
// Read a string value, interpreting backslash-escapes.
pp.readCodePoint = function () {
var ch = this.input.charCodeAt(this.pos),
code = undefined;
if (ch === 123) {
if (this.options.ecmaVersion < 6) this.unexpected();
++this.pos;
code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
++this.pos;
if (code > 1114111) this.unexpected();
} else {
code = this.readHexChar(4);
}
return code;
};
function codePointToString(code) {
// UTF-16 Decoding
if (code <= 65535) {
return String.fromCharCode(code);
}return String.fromCharCode((code - 65536 >> 10) + 55296, (code - 65536 & 1023) + 56320);
}
pp.readString = function (quote) {
var out = "",
chunkStart = ++this.pos;
for (;;) {
if (this.pos >= this.input.length) this.raise(this.start, "Unterminated string constant");
var ch = this.input.charCodeAt(this.pos);
if (ch === quote) break;
if (ch === 92) {
// '\'
out += this.input.slice(chunkStart, this.pos);
out += this.readEscapedChar();
chunkStart = this.pos;
} else {
if (isNewLine(ch)) this.raise(this.start, "Unterminated string constant");
++this.pos;
}
}
out += this.input.slice(chunkStart, this.pos++);
return this.finishToken(tt.string, out);
};
// Reads template string tokens.
pp.readTmplToken = function () {
var out = "",
chunkStart = this.pos;
for (;;) {
if (this.pos >= this.input.length) this.raise(this.start, "Unterminated template");
var ch = this.input.charCodeAt(this.pos);
if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) {
// '`', '${'
if (this.pos === this.start && this.type === tt.template) {
if (ch === 36) {
this.pos += 2;
return this.finishToken(tt.dollarBraceL);
} else {
++this.pos;
return this.finishToken(tt.backQuote);
}
}
out += this.input.slice(chunkStart, this.pos);
return this.finishToken(tt.template, out);
}
if (ch === 92) {
// '\'
out += this.input.slice(chunkStart, this.pos);
out += this.readEscapedChar();
chunkStart = this.pos;
} else if (isNewLine(ch)) {
out += this.input.slice(chunkStart, this.pos);
++this.pos;
if (ch === 13 && this.input.charCodeAt(this.pos) === 10) {
++this.pos;
out += "\n";
} else {
out += String.fromCharCode(ch);
}
if (this.options.locations) {
++this.curLine;
this.lineStart = this.pos;
}
chunkStart = this.pos;
} else {
++this.pos;
}
}
};
// Used to read escaped characters
pp.readEscapedChar = function () {
var ch = this.input.charCodeAt(++this.pos);
var octal = /^[0-7]+/.exec(this.input.slice(this.pos, this.pos + 3));
if (octal) octal = octal[0];
while (octal && parseInt(octal, 8) > 255) octal = octal.slice(0, -1);
if (octal === "0") octal = null;
++this.pos;
if (octal) {
if (this.strict) this.raise(this.pos - 2, "Octal literal in strict mode");
this.pos += octal.length - 1;
return String.fromCharCode(parseInt(octal, 8));
} else {
switch (ch) {
case 110:
return "\n"; // 'n' -> '\n'
case 114:
return "\r"; // 'r' -> '\r'
case 120:
return String.fromCharCode(this.readHexChar(2)); // 'x'
case 117:
return codePointToString(this.readCodePoint()); // 'u'
case 116:
return "\t"; // 't' -> '\t'
case 98:
return "\b"; // 'b' -> '\b'
case 118:
return "\u000b"; // 'v' -> '\u000b'
case 102:
return "\f"; // 'f' -> '\f'
case 48:
return "\u0000"; // 0 -> '\0'
case 13:
if (this.input.charCodeAt(this.pos) === 10) ++this.pos; // '\r\n'
case 10:
// ' \n'
if (this.options.locations) {
this.lineStart = this.pos;++this.curLine;
}
return "";
default:
return String.fromCharCode(ch);
}
}
};
// Used to read character escape sequences ('\x', '\u', '\U').
pp.readHexChar = function (len) {
var n = this.readInt(16, len);
if (n === null) this.raise(this.start, "Bad character escape sequence");
return n;
};
// Used to signal to callers of `readWord1` whether the word
// contained any escape sequences. This is needed because words with
// escape sequences must not be interpreted as keywords.
var containsEsc;
// Read an identifier, and return it as a string. Sets `containsEsc`
// to whether the word contained a '\u' escape.
//
// Incrementally adds only escaped chars, adding other chunks as-is
// as a micro-optimization.
pp.readWord1 = function () {
containsEsc = false;
var word = "",
first = true,
chunkStart = this.pos;
var astral = this.options.ecmaVersion >= 6;
while (this.pos < this.input.length) {
var ch = this.fullCharCodeAtPos();
if (isIdentifierChar(ch, astral)) {
this.pos += ch <= 65535 ? 1 : 2;
} else if (ch === 92) {
// "\"
containsEsc = true;
word += this.input.slice(chunkStart, this.pos);
var escStart = this.pos;
if (this.input.charCodeAt(++this.pos) != 117) // "u"
this.raise(this.pos, "Expecting Unicode escape sequence \\uXXXX");
++this.pos;
var esc = this.readCodePoint();
if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral)) this.raise(escStart, "Invalid Unicode escape");
word += codePointToString(esc);
chunkStart = this.pos;
} else {
break;
}
first = false;
}
return word + this.input.slice(chunkStart, this.pos);
};
// Read an identifier or keyword token. Will check for reserved
// words when necessary.
pp.readWord = function () {
var word = this.readWord1();
var type = tt.name;
if ((this.options.ecmaVersion >= 6 || !containsEsc) && this.isKeyword(word)) type = keywordTypes[word];
return this.finishToken(type, word);
};
},{"./identifier":7,"./location":8,"./state":13,"./tokentype":17,"./whitespace":19}],17:[function(_dereq_,module,exports){
"use strict";
var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };
exports.__esModule = true;
// ## Token types
// The assignment of fine-grained, information-carrying type objects
// allows the tokenizer to store the information it has about a
// token in a way that is very cheap for the parser to look up.
// All token type variables start with an underscore, to make them
// easy to recognize.
// The `beforeExpr` property is used to disambiguate between regular
// expressions and divisions. It is set on all token types that can
// be followed by an expression (thus, a slash after them would be a
// regular expression).
//
// `isLoop` marks a keyword as starting a loop, which is important
// to know when parsing a label, in order to allow or disallow
// continue jumps to that label.
var TokenType = exports.TokenType = function TokenType(label) {
var conf = arguments[1] === undefined ? {} : arguments[1];
_classCallCheck(this, TokenType);
this.label = label;
this.keyword = conf.keyword;
this.beforeExpr = !!conf.beforeExpr;
this.startsExpr = !!conf.startsExpr;
this.isLoop = !!conf.isLoop;
this.isAssign = !!conf.isAssign;
this.prefix = !!conf.prefix;
this.postfix = !!conf.postfix;
this.binop = conf.binop || null;
this.updateContext = null;
};
function binop(name, prec) {
return new TokenType(name, { beforeExpr: true, binop: prec });
}
var beforeExpr = { beforeExpr: true },
startsExpr = { startsExpr: true };
var types = {
num: new TokenType("num", startsExpr),
regexp: new TokenType("regexp", startsExpr),
string: new TokenType("string", startsExpr),
name: new TokenType("name", startsExpr),
eof: new TokenType("eof"),
// Punctuation token types.
bracketL: new TokenType("[", { beforeExpr: true, startsExpr: true }),
bracketR: new TokenType("]"),
braceL: new TokenType("{", { beforeExpr: true, startsExpr: true }),
braceR: new TokenType("}"),
parenL: new TokenType("(", { beforeExpr: true, startsExpr: true }),
parenR: new TokenType(")"),
comma: new TokenType(",", beforeExpr),
semi: new TokenType(";", beforeExpr),
colon: new TokenType(":", beforeExpr),
dot: new TokenType("."),
question: new TokenType("?", beforeExpr),
arrow: new TokenType("=>", beforeExpr),
template: new TokenType("template"),
ellipsis: new TokenType("...", beforeExpr),
backQuote: new TokenType("`", startsExpr),
dollarBraceL: new TokenType("${", { beforeExpr: true, startsExpr: true }),
// Operators. These carry several kinds of properties to help the
// parser use them properly (the presence of these properties is
// what categorizes them as operators).
//
// `binop`, when present, specifies that this operator is a binary
// operator, and will refer to its precedence.
//
// `prefix` and `postfix` mark the operator as a prefix or postfix
// unary operator.
//
// `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
// binary operators with a very low precedence, that should result
// in AssignmentExpression nodes.
eq: new TokenType("=", { beforeExpr: true, isAssign: true }),
assign: new TokenType("_=", { beforeExpr: true, isAssign: true }),
incDec: new TokenType("++/--", { prefix: true, postfix: true, startsExpr: true }),
prefix: new TokenType("prefix", { beforeExpr: true, prefix: true, startsExpr: true }),
logicalOR: binop("||", 1),
logicalAND: binop("&&", 2),
bitwiseOR: binop("|", 3),
bitwiseXOR: binop("^", 4),
bitwiseAND: binop("&", 5),
equality: binop("==/!=", 6),
relational: binop("</>", 7),
bitShift: binop("<</>>", 8),
plusMin: new TokenType("+/-", { beforeExpr: true, binop: 9, prefix: true, startsExpr: true }),
modulo: binop("%", 10),
star: binop("*", 10),
slash: binop("/", 10)
};
exports.types = types;
// Map keyword names to token types.
var keywords = {};
exports.keywords = keywords;
// Succinct definitions of keyword token types
function kw(name) {
var options = arguments[1] === undefined ? {} : arguments[1];
options.keyword = name;
keywords[name] = types["_" + name] = new TokenType(name, options);
}
kw("break");
kw("case", beforeExpr);
kw("catch");
kw("continue");
kw("debugger");
kw("default");
kw("do", { isLoop: true });
kw("else", beforeExpr);
kw("finally");
kw("for", { isLoop: true });
kw("function", startsExpr);
kw("if");
kw("return", beforeExpr);
kw("switch");
kw("throw", beforeExpr);
kw("try");
kw("var");
kw("let");
kw("const");
kw("while", { isLoop: true });
kw("with");
kw("new", { beforeExpr: true, startsExpr: true });
kw("this", startsExpr);
kw("super", startsExpr);
kw("class");
kw("extends", beforeExpr);
kw("export");
kw("import");
kw("yield", { beforeExpr: true, startsExpr: true });
kw("null", startsExpr);
kw("true", startsExpr);
kw("false", startsExpr);
kw("in", { beforeExpr: true, binop: 7 });
kw("instanceof", { beforeExpr: true, binop: 7 });
kw("typeof", { beforeExpr: true, prefix: true, startsExpr: true });
kw("void", { beforeExpr: true, prefix: true, startsExpr: true });
kw("delete", { beforeExpr: true, prefix: true, startsExpr: true });
},{}],18:[function(_dereq_,module,exports){
"use strict";
exports.isArray = isArray;
// Checks if an object has a property.
exports.has = has;
exports.__esModule = true;
function isArray(obj) {
return Object.prototype.toString.call(obj) === "[object Array]";
}
function has(obj, propName) {
return Object.prototype.hasOwnProperty.call(obj, propName);
}
},{}],19:[function(_dereq_,module,exports){
"use strict";
exports.isNewLine = isNewLine;
exports.__esModule = true;
// Matches a whole line break (where CRLF is considered a single
// line break). Used to count lines.
var lineBreak = /\r\n?|\n|\u2028|\u2029/;
exports.lineBreak = lineBreak;
var lineBreakG = new RegExp(lineBreak.source, "g");
exports.lineBreakG = lineBreakG;
function isNewLine(code) {
return code === 10 || code === 13 || code === 8232 || code == 8233;
}
var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;
exports.nonASCIIwhitespace = nonASCIIwhitespace;
},{}]},{},[1])(1)
});
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],33:[function(require,module,exports){
(function (global){
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}(g.acorn || (g.acorn = {})).walk = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
"use strict";
var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };
// AST walker module for Mozilla Parser API compatible trees
// A simple walk is one where you simply specify callbacks to be
// called on specific nodes. The last two arguments are optional. A
// simple use would be
//
// walk.simple(myTree, {
// Expression: function(node) { ... }
// });
//
// to do something with all expressions. All Parser API node types
// can be used to identify node types, as well as Expression,
// Statement, and ScopeBody, which denote categories of nodes.
//
// The base argument can be used to pass a custom (recursive)
// walker, and state can be used to give this walked an initial
// state.
exports.simple = simple;
// An ancestor walk builds up an array of ancestor nodes (including
// the current node) and passes them to the callback as the state parameter.
exports.ancestor = ancestor;
// A recursive walk is one where your functions override the default
// walkers. They can modify and replace the state parameter that's
// threaded through the walk, and can opt how and whether to walk
// their child nodes (by calling their third argument on these
// nodes).
exports.recursive = recursive;
// Find a node with a given start, end, and type (all are optional,
// null can be used as wildcard). Returns a {node, state} object, or
// undefined when it doesn't find a matching node.
exports.findNodeAt = findNodeAt;
// Find the innermost node of a given type that contains the given
// position. Interface similar to findNodeAt.
exports.findNodeAround = findNodeAround;
// Find the outermost matching node after a given position.
exports.findNodeAfter = findNodeAfter;
// Find the outermost matching node before a given position.
exports.findNodeBefore = findNodeBefore;
// Used to create a custom walker. Will fill in all missing node
// type properties with the defaults.
exports.make = make;
exports.__esModule = true;
function simple(node, visitors, base, state) {
if (!base) base = exports.base;(function c(node, st, override) {
var type = override || node.type,
found = visitors[type];
base[type](node, st, c);
if (found) found(node, st);
})(node, state);
}
function ancestor(node, visitors, base, state) {
if (!base) base = exports.base;
if (!state) state = [];(function c(node, st, override) {
var type = override || node.type,
found = visitors[type];
if (node != st[st.length - 1]) {
st = st.slice();
st.push(node);
}
base[type](node, st, c);
if (found) found(node, st);
})(node, state);
}
function recursive(node, state, funcs, base) {
var visitor = funcs ? exports.make(funcs, base) : base;(function c(node, st, override) {
visitor[override || node.type](node, st, c);
})(node, state);
}
function makeTest(test) {
if (typeof test == "string") {
return function (type) {
return type == test;
};
} else if (!test) {
return function () {
return true;
};
} else {
return test;
}
}
var Found = function Found(node, state) {
_classCallCheck(this, Found);
this.node = node;this.state = state;
};
function findNodeAt(node, start, end, test, base, state) {
test = makeTest(test);
if (!base) base = exports.base;
try {
;(function c(node, st, override) {
var type = override || node.type;
if ((start == null || node.start <= start) && (end == null || node.end >= end)) base[type](node, st, c);
if (test(type, node) && (start == null || node.start == start) && (end == null || node.end == end)) throw new Found(node, st);
})(node, state);
} catch (e) {
if (e instanceof Found) {
return e;
}throw e;
}
}
function findNodeAround(node, pos, test, base, state) {
test = makeTest(test);
if (!base) base = exports.base;
try {
;(function c(node, st, override) {
var type = override || node.type;
if (node.start > pos || node.end < pos) {
return;
}base[type](node, st, c);
if (test(type, node)) throw new Found(node, st);
})(node, state);
} catch (e) {
if (e instanceof Found) {
return e;
}throw e;
}
}
function findNodeAfter(node, pos, test, base, state) {
test = makeTest(test);
if (!base) base = exports.base;
try {
;(function c(node, st, override) {
if (node.end < pos) {
return;
}var type = override || node.type;
if (node.start >= pos && test(type, node)) throw new Found(node, st);
base[type](node, st, c);
})(node, state);
} catch (e) {
if (e instanceof Found) {
return e;
}throw e;
}
}
function findNodeBefore(node, pos, test, base, state) {
test = makeTest(test);
if (!base) base = exports.base;
var max = undefined;(function c(node, st, override) {
if (node.start > pos) {
return;
}var type = override || node.type;
if (node.end <= pos && (!max || max.node.end < node.end) && test(type, node)) max = new Found(node, st);
base[type](node, st, c);
})(node, state);
return max;
}
function make(funcs, base) {
if (!base) base = exports.base;
var visitor = {};
for (var type in base) visitor[type] = base[type];
for (var type in funcs) visitor[type] = funcs[type];
return visitor;
}
function skipThrough(node, st, c) {
c(node, st);
}
function ignore(_node, _st, _c) {}
// Node walkers.
var base = {};
exports.base = base;
base.Program = base.BlockStatement = function (node, st, c) {
for (var i = 0; i < node.body.length; ++i) {
c(node.body[i], st, "Statement");
}
};
base.Statement = skipThrough;
base.EmptyStatement = ignore;
base.ExpressionStatement = base.ParenthesizedExpression = function (node, st, c) {
return c(node.expression, st, "Expression");
};
base.IfStatement = function (node, st, c) {
c(node.test, st, "Expression");
c(node.consequent, st, "Statement");
if (node.alternate) c(node.alternate, st, "Statement");
};
base.LabeledStatement = function (node, st, c) {
return c(node.body, st, "Statement");
};
base.BreakStatement = base.ContinueStatement = ignore;
base.WithStatement = function (node, st, c) {
c(node.object, st, "Expression");
c(node.body, st, "Statement");
};
base.SwitchStatement = function (node, st, c) {
c(node.discriminant, st, "Expression");
for (var i = 0; i < node.cases.length; ++i) {
var cs = node.cases[i];
if (cs.test) c(cs.test, st, "Expression");
for (var j = 0; j < cs.consequent.length; ++j) {
c(cs.consequent[j], st, "Statement");
}
}
};
base.ReturnStatement = base.YieldExpression = function (node, st, c) {
if (node.argument) c(node.argument, st, "Expression");
};
base.ThrowStatement = base.SpreadElement = base.RestElement = function (node, st, c) {
return c(node.argument, st, "Expression");
};
base.TryStatement = function (node, st, c) {
c(node.block, st, "Statement");
if (node.handler) c(node.handler.body, st, "ScopeBody");
if (node.finalizer) c(node.finalizer, st, "Statement");
};
base.WhileStatement = base.DoWhileStatement = function (node, st, c) {
c(node.test, st, "Expression");
c(node.body, st, "Statement");
};
base.ForStatement = function (node, st, c) {
if (node.init) c(node.init, st, "ForInit");
if (node.test) c(node.test, st, "Expression");
if (node.update) c(node.update, st, "Expression");
c(node.body, st, "Statement");
};
base.ForInStatement = base.ForOfStatement = function (node, st, c) {
c(node.left, st, "ForInit");
c(node.right, st, "Expression");
c(node.body, st, "Statement");
};
base.ForInit = function (node, st, c) {
if (node.type == "VariableDeclaration") c(node, st);else c(node, st, "Expression");
};
base.DebuggerStatement = ignore;
base.FunctionDeclaration = function (node, st, c) {
return c(node, st, "Function");
};
base.VariableDeclaration = function (node, st, c) {
for (var i = 0; i < node.declarations.length; ++i) {
var decl = node.declarations[i];
if (decl.init) c(decl.init, st, "Expression");
}
};
base.Function = function (node, st, c) {
return c(node.body, st, "ScopeBody");
};
base.ScopeBody = function (node, st, c) {
return c(node, st, "Statement");
};
base.Expression = skipThrough;
base.ThisExpression = base.Super = base.MetaProperty = ignore;
base.ArrayExpression = base.ArrayPattern = function (node, st, c) {
for (var i = 0; i < node.elements.length; ++i) {
var elt = node.elements[i];
if (elt) c(elt, st, "Expression");
}
};
base.ObjectExpression = base.ObjectPattern = function (node, st, c) {
for (var i = 0; i < node.properties.length; ++i) {
c(node.properties[i], st);
}
};
base.FunctionExpression = base.ArrowFunctionExpression = base.FunctionDeclaration;
base.SequenceExpression = base.TemplateLiteral = function (node, st, c) {
for (var i = 0; i < node.expressions.length; ++i) {
c(node.expressions[i], st, "Expression");
}
};
base.UnaryExpression = base.UpdateExpression = function (node, st, c) {
c(node.argument, st, "Expression");
};
base.BinaryExpression = base.AssignmentExpression = base.AssignmentPattern = base.LogicalExpression = function (node, st, c) {
c(node.left, st, "Expression");
c(node.right, st, "Expression");
};
base.ConditionalExpression = function (node, st, c) {
c(node.test, st, "Expression");
c(node.consequent, st, "Expression");
c(node.alternate, st, "Expression");
};
base.NewExpression = base.CallExpression = function (node, st, c) {
c(node.callee, st, "Expression");
if (node.arguments) for (var i = 0; i < node.arguments.length; ++i) {
c(node.arguments[i], st, "Expression");
}
};
base.MemberExpression = function (node, st, c) {
c(node.object, st, "Expression");
if (node.computed) c(node.property, st, "Expression");
};
base.ExportNamedDeclaration = base.ExportDefaultDeclaration = function (node, st, c) {
return c(node.declaration, st);
};
base.ImportDeclaration = function (node, st, c) {
for (var i = 0; i < node.specifiers.length; i++) {
c(node.specifiers[i], st);
}
};
base.ImportSpecifier = base.ImportDefaultSpecifier = base.ImportNamespaceSpecifier = base.Identifier = base.Literal = ignore;
base.TaggedTemplateExpression = function (node, st, c) {
c(node.tag, st, "Expression");
c(node.quasi, st);
};
base.ClassDeclaration = base.ClassExpression = function (node, st, c) {
if (node.superClass) c(node.superClass, st, "Expression");
for (var i = 0; i < node.body.body.length; i++) {
c(node.body.body[i], st);
}
};
base.MethodDefinition = base.Property = function (node, st, c) {
if (node.computed) c(node.key, st, "Expression");
c(node.value, st, "Expression");
};
base.ComprehensionExpression = function (node, st, c) {
for (var i = 0; i < node.blocks.length; i++) {
c(node.blocks[i].right, st, "Expression");
}c(node.body, st, "Expression");
};
},{}]},{},[1])(1)
});
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],34:[function(require,module,exports){
/**
* This file automatically generated from `pre-publish.js`.
* Do not manually edit.
*/
module.exports = {
"area": true,
"base": true,
"br": true,
"col": true,
"embed": true,
"hr": true,
"img": true,
"input": true,
"keygen": true,
"link": true,
"menuitem": true,
"meta": true,
"param": true,
"source": true,
"track": true,
"wbr": true
};
},{}],35:[function(require,module,exports){
'use strict';
var detect = require('acorn-globals');
var acorn = require('acorn');
var walk = require('acorn/dist/walk');
// polyfill for https://github.com/marijnh/acorn/pull/231
walk.base.ExportNamedDeclaration = walk.base.ExportDefaultDeclaration = function (node, st, c) {
return c(node.declaration, st);
};
walk.base.ImportDefaultSpecifier = walk.base.ImportNamespaceSpecifier = function () {};
// hacky fix for https://github.com/marijnh/acorn/issues/227
function reallyParse(source) {
try {
return acorn.parse(source, {
ecmaVersion: 5,
allowReturnOutsideFunction: true
});
} catch (ex) {
if (ex.name !== 'SyntaxError') {
throw ex;
}
return acorn.parse(source, {
ecmaVersion: 6,
allowReturnOutsideFunction: true
});
}
}
module.exports = addWith
/**
* Mimic `with` as far as possible but at compile time
*
* @param {String} obj The object part of a with expression
* @param {String} src The body of the with expression
* @param {Array.<String>} exclude A list of variable names to explicitly exclude
*/
function addWith(obj, src, exclude) {
obj = obj + ''
src = src + ''
exclude = exclude || []
exclude = exclude.concat(detect(obj).map(function (global) { return global.name; }))
var vars = detect(src).map(function (global) { return global.name; })
.filter(function (v) {
return exclude.indexOf(v) === -1
})
if (vars.length === 0) return src
var declareLocal = ''
var local = 'locals_for_with'
var result = 'result_of_with'
if (/^[a-zA-Z0-9$_]+$/.test(obj)) {
local = obj
} else {
while (vars.indexOf(local) != -1 || exclude.indexOf(local) != -1) {
local += '_'
}
declareLocal = 'var ' + local + ' = (' + obj + ')'
}
while (vars.indexOf(result) != -1 || exclude.indexOf(result) != -1) {
result += '_'
}
var inputVars = vars.map(function (v) {
return JSON.stringify(v) + ' in ' + local + '?' +
local + '.' + v + ':' +
'typeof ' + v + '!=="undefined"?' + v + ':undefined'
})
src = '(function (' + vars.join(', ') + ') {' +
src +
'}.call(this' + inputVars.map(function (v) { return ',' + v; }).join('') + '))'
return ';' + declareLocal + ';' + unwrapReturns(src, result) + ';'
}
/**
* Take a self calling function, and unwrap it such that return inside the function
* results in return outside the function
*
* @param {String} src Some JavaScript code representing a self-calling function
* @param {String} result A temporary variable to store the result in
*/
function unwrapReturns(src, result) {
var originalSource = src
var hasReturn = false
var ast = reallyParse(src)
var ref
src = src.split('')
// get a reference to the function that was inserted to add an inner context
if ((ref = ast.body).length !== 1
|| (ref = ref[0]).type !== 'ExpressionStatement'
|| (ref = ref.expression).type !== 'CallExpression'
|| (ref = ref.callee).type !== 'MemberExpression' || ref.computed !== false || ref.property.name !== 'call'
|| (ref = ref.object).type !== 'FunctionExpression')
throw new Error('AST does not seem to represent a self-calling function')
var fn = ref
walk.recursive(ast, null, {
Function: function (node, st, c) {
if (node === fn) {
c(node.body, st, "ScopeBody");
}
},
ReturnStatement: function (node) {
hasReturn = true
replace(node, 'return {value: ' + source(node.argument) + '};');
}
});
function source(node) {
return src.slice(node.start, node.end).join('')
}
function replace(node, str) {
for (var i = node.start; i < node.end; i++) {
src[i] = ''
}
src[node.start] = str
}
if (!hasReturn) return originalSource
else return 'var ' + result + '=' + src.join('') + ';if (' + result + ') return ' + result + '.value'
}
},{"acorn":37,"acorn-globals":36,"acorn/dist/walk":38}],36:[function(require,module,exports){
arguments[4][31][0].apply(exports,arguments)
},{"acorn":37,"acorn/dist/walk":38,"dup":31}],37:[function(require,module,exports){
arguments[4][32][0].apply(exports,arguments)
},{"dup":32}],38:[function(require,module,exports){
arguments[4][33][0].apply(exports,arguments)
},{"dup":33}]},{},[1])(1)
});