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JavaScript

"use strict";
var _map = require("lodash/map");
var _map2 = _interopRequireDefault(_map);
var _babelTypes = require("babel-types");
var t = _interopRequireWildcard(_babelTypes);
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function crawl(node) {
var state = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
if (t.isMemberExpression(node)) {
crawl(node.object, state);
if (node.computed) crawl(node.property, state);
} else if (t.isBinary(node) || t.isAssignmentExpression(node)) {
crawl(node.left, state);
crawl(node.right, state);
} else if (t.isCallExpression(node)) {
state.hasCall = true;
crawl(node.callee, state);
} else if (t.isFunction(node)) {
state.hasFunction = true;
} else if (t.isIdentifier(node)) {
state.hasHelper = state.hasHelper || isHelper(node.callee);
}
return state;
}
function isHelper(node) {
if (t.isMemberExpression(node)) {
return isHelper(node.object) || isHelper(node.property);
} else if (t.isIdentifier(node)) {
return node.name === "require" || node.name[0] === "_";
} else if (t.isCallExpression(node)) {
return isHelper(node.callee);
} else if (t.isBinary(node) || t.isAssignmentExpression(node)) {
return t.isIdentifier(node.left) && isHelper(node.left) || isHelper(node.right);
} else {
return false;
}
}
function isType(node) {
return t.isLiteral(node) || t.isObjectExpression(node) || t.isArrayExpression(node) || t.isIdentifier(node) || t.isMemberExpression(node);
}
exports.nodes = {
AssignmentExpression: function AssignmentExpression(node) {
var state = crawl(node.right);
if (state.hasCall && state.hasHelper || state.hasFunction) {
return {
before: state.hasFunction,
after: true
};
}
},
SwitchCase: function SwitchCase(node, parent) {
return {
before: node.consequent.length || parent.cases[0] === node
};
},
LogicalExpression: function LogicalExpression(node) {
if (t.isFunction(node.left) || t.isFunction(node.right)) {
return {
after: true
};
}
},
Literal: function Literal(node) {
if (node.value === "use strict") {
return {
after: true
};
}
},
CallExpression: function CallExpression(node) {
if (t.isFunction(node.callee) || isHelper(node)) {
return {
before: true,
after: true
};
}
},
VariableDeclaration: function VariableDeclaration(node) {
for (var i = 0; i < node.declarations.length; i++) {
var declar = node.declarations[i];
var enabled = isHelper(declar.id) && !isType(declar.init);
if (!enabled) {
var state = crawl(declar.init);
enabled = isHelper(declar.init) && state.hasCall || state.hasFunction;
}
if (enabled) {
return {
before: true,
after: true
};
}
}
},
IfStatement: function IfStatement(node) {
if (t.isBlockStatement(node.consequent)) {
return {
before: true,
after: true
};
}
}
};
exports.nodes.ObjectProperty = exports.nodes.ObjectTypeProperty = exports.nodes.ObjectMethod = exports.nodes.SpreadProperty = function (node, parent) {
if (parent.properties[0] === node) {
return {
before: true
};
}
};
exports.list = {
VariableDeclaration: function VariableDeclaration(node) {
return (0, _map2.default)(node.declarations, "init");
},
ArrayExpression: function ArrayExpression(node) {
return node.elements;
},
ObjectExpression: function ObjectExpression(node) {
return node.properties;
}
};
[["Function", true], ["Class", true], ["Loop", true], ["LabeledStatement", true], ["SwitchStatement", true], ["TryStatement", true]].forEach(function (_ref) {
var type = _ref[0],
amounts = _ref[1];
if (typeof amounts === "boolean") {
amounts = { after: amounts, before: amounts };
}
[type].concat(t.FLIPPED_ALIAS_KEYS[type] || []).forEach(function (type) {
exports.nodes[type] = function () {
return amounts;
};
});
});