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298 lines
35 KiB
JavaScript
298 lines
35 KiB
JavaScript
6 years ago
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define(['exports', './utils', './exception', './base'], function (exports, _utils, _exception, _base) {
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'use strict';
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exports.__esModule = true;
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exports.checkRevision = checkRevision;
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exports.template = template;
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exports.wrapProgram = wrapProgram;
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exports.resolvePartial = resolvePartial;
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exports.invokePartial = invokePartial;
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exports.noop = noop;
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// istanbul ignore next
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
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var _Exception = _interopRequireDefault(_exception);
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function checkRevision(compilerInfo) {
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var compilerRevision = compilerInfo && compilerInfo[0] || 1,
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currentRevision = _base.COMPILER_REVISION;
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if (compilerRevision !== currentRevision) {
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if (compilerRevision < currentRevision) {
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var runtimeVersions = _base.REVISION_CHANGES[currentRevision],
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compilerVersions = _base.REVISION_CHANGES[compilerRevision];
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throw new _Exception['default']('Template was precompiled with an older version of Handlebars than the current runtime. ' + 'Please update your precompiler to a newer version (' + runtimeVersions + ') or downgrade your runtime to an older version (' + compilerVersions + ').');
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} else {
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// Use the embedded version info since the runtime doesn't know about this revision yet
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throw new _Exception['default']('Template was precompiled with a newer version of Handlebars than the current runtime. ' + 'Please update your runtime to a newer version (' + compilerInfo[1] + ').');
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}
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}
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}
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function template(templateSpec, env) {
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/* istanbul ignore next */
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if (!env) {
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throw new _Exception['default']('No environment passed to template');
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}
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if (!templateSpec || !templateSpec.main) {
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throw new _Exception['default']('Unknown template object: ' + typeof templateSpec);
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}
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templateSpec.main.decorator = templateSpec.main_d;
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// Note: Using env.VM references rather than local var references throughout this section to allow
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// for external users to override these as psuedo-supported APIs.
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env.VM.checkRevision(templateSpec.compiler);
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function invokePartialWrapper(partial, context, options) {
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if (options.hash) {
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context = _utils.extend({}, context, options.hash);
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if (options.ids) {
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options.ids[0] = true;
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}
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}
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partial = env.VM.resolvePartial.call(this, partial, context, options);
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var result = env.VM.invokePartial.call(this, partial, context, options);
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if (result == null && env.compile) {
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options.partials[options.name] = env.compile(partial, templateSpec.compilerOptions, env);
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result = options.partials[options.name](context, options);
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}
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if (result != null) {
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if (options.indent) {
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var lines = result.split('\n');
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for (var i = 0, l = lines.length; i < l; i++) {
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if (!lines[i] && i + 1 === l) {
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break;
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}
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lines[i] = options.indent + lines[i];
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}
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result = lines.join('\n');
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}
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return result;
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} else {
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throw new _Exception['default']('The partial ' + options.name + ' could not be compiled when running in runtime-only mode');
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}
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}
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// Just add water
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var container = {
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strict: function strict(obj, name) {
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if (!(name in obj)) {
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throw new _Exception['default']('"' + name + '" not defined in ' + obj);
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}
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return obj[name];
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},
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lookup: function lookup(depths, name) {
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var len = depths.length;
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for (var i = 0; i < len; i++) {
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if (depths[i] && depths[i][name] != null) {
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return depths[i][name];
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}
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}
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},
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lambda: function lambda(current, context) {
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return typeof current === 'function' ? current.call(context) : current;
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},
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escapeExpression: _utils.escapeExpression,
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invokePartial: invokePartialWrapper,
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fn: function fn(i) {
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var ret = templateSpec[i];
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ret.decorator = templateSpec[i + '_d'];
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return ret;
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},
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programs: [],
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program: function program(i, data, declaredBlockParams, blockParams, depths) {
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var programWrapper = this.programs[i],
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fn = this.fn(i);
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if (data || depths || blockParams || declaredBlockParams) {
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programWrapper = wrapProgram(this, i, fn, data, declaredBlockParams, blockParams, depths);
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} else if (!programWrapper) {
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programWrapper = this.programs[i] = wrapProgram(this, i, fn);
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}
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return programWrapper;
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},
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data: function data(value, depth) {
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while (value && depth--) {
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value = value._parent;
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}
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return value;
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},
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merge: function merge(param, common) {
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var obj = param || common;
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if (param && common && param !== common) {
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obj = _utils.extend({}, common, param);
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}
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return obj;
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},
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// An empty object to use as replacement for null-contexts
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nullContext: Object.seal({}),
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noop: env.VM.noop,
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compilerInfo: templateSpec.compiler
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};
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function ret(context) {
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var options = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];
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var data = options.data;
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ret._setup(options);
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if (!options.partial && templateSpec.useData) {
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data = initData(context, data);
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}
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var depths = undefined,
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blockParams = templateSpec.useBlockParams ? [] : undefined;
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if (templateSpec.useDepths) {
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if (options.depths) {
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depths = context != options.depths[0] ? [context].concat(options.depths) : options.depths;
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} else {
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depths = [context];
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}
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}
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function main(context /*, options*/) {
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return '' + templateSpec.main(container, context, container.helpers, container.partials, data, blockParams, depths);
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}
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main = executeDecorators(templateSpec.main, main, container, options.depths || [], data, blockParams);
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return main(context, options);
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}
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ret.isTop = true;
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ret._setup = function (options) {
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if (!options.partial) {
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container.helpers = container.merge(options.helpers, env.helpers);
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if (templateSpec.usePartial) {
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container.partials = container.merge(options.partials, env.partials);
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}
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if (templateSpec.usePartial || templateSpec.useDecorators) {
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container.decorators = container.merge(options.decorators, env.decorators);
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}
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} else {
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container.helpers = options.helpers;
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container.partials = options.partials;
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container.decorators = options.decorators;
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}
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};
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ret._child = function (i, data, blockParams, depths) {
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if (templateSpec.useBlockParams && !blockParams) {
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throw new _Exception['default']('must pass block params');
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}
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if (templateSpec.useDepths && !depths) {
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throw new _Exception['default']('must pass parent depths');
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}
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return wrapProgram(container, i, templateSpec[i], data, 0, blockParams, depths);
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};
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return ret;
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}
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function wrapProgram(container, i, fn, data, declaredBlockParams, blockParams, depths) {
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function prog(context) {
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var options = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];
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var currentDepths = depths;
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if (depths && context != depths[0] && !(context === container.nullContext && depths[0] === null)) {
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currentDepths = [context].concat(depths);
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}
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return fn(container, context, container.helpers, container.partials, options.data || data, blockParams && [options.blockParams].concat(blockParams), currentDepths);
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}
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prog = executeDecorators(fn, prog, container, depths, data, blockParams);
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prog.program = i;
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prog.depth = depths ? depths.length : 0;
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prog.blockParams = declaredBlockParams || 0;
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return prog;
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}
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function resolvePartial(partial, context, options) {
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if (!partial) {
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if (options.name === '@partial-block') {
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partial = options.data['partial-block'];
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} else {
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partial = options.partials[options.name];
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}
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} else if (!partial.call && !options.name) {
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// This is a dynamic partial that returned a string
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options.name = partial;
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partial = options.partials[partial];
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}
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return partial;
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}
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function invokePartial(partial, context, options) {
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// Use the current closure context to save the partial-block if this partial
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var currentPartialBlock = options.data && options.data['partial-block'];
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options.partial = true;
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if (options.ids) {
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options.data.contextPath = options.ids[0] || options.data.contextPath;
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}
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var partialBlock = undefined;
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if (options.fn && options.fn !== noop) {
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(function () {
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options.data = _base.createFrame(options.data);
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// Wrapper function to get access to currentPartialBlock from the closure
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var fn = options.fn;
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partialBlock = options.data['partial-block'] = function partialBlockWrapper(context) {
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var options = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];
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// Restore the partial-block from the closure for the execution of the block
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// i.e. the part inside the block of the partial call.
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options.data = _base.createFrame(options.data);
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options.data['partial-block'] = currentPartialBlock;
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return fn(context, options);
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};
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if (fn.partials) {
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options.partials = _utils.extend({}, options.partials, fn.partials);
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}
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})();
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}
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if (partial === undefined && partialBlock) {
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partial = partialBlock;
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}
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if (partial === undefined) {
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throw new _Exception['default']('The partial ' + options.name + ' could not be found');
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} else if (partial instanceof Function) {
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return partial(context, options);
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}
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}
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function noop() {
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return '';
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}
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function initData(context, data) {
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if (!data || !('root' in data)) {
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data = data ? _base.createFrame(data) : {};
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data.root = context;
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}
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return data;
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}
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function executeDecorators(fn, prog, container, depths, data, blockParams) {
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if (fn.decorator) {
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var props = {};
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prog = fn.decorator(prog, props, container, depths && depths[0], data, blockParams, depths);
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_utils.extend(prog, props);
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}
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return prog;
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}
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});
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