diff options
Diffstat (limited to 'node_modules/babel-plugin-transform-es2015-destructuring')
4 files changed, 607 insertions, 0 deletions
diff --git a/node_modules/babel-plugin-transform-es2015-destructuring/.npmignore b/node_modules/babel-plugin-transform-es2015-destructuring/.npmignore new file mode 100644 index 000000000..31852902b --- /dev/null +++ b/node_modules/babel-plugin-transform-es2015-destructuring/.npmignore @@ -0,0 +1,4 @@ +node_modules +*.log +src +test diff --git a/node_modules/babel-plugin-transform-es2015-destructuring/README.md b/node_modules/babel-plugin-transform-es2015-destructuring/README.md new file mode 100644 index 000000000..b20732c4b --- /dev/null +++ b/node_modules/babel-plugin-transform-es2015-destructuring/README.md @@ -0,0 +1,35 @@ +# babel-plugin-transform-es2015-destructuring + +> Compile ES2015 destructuring to ES5 + +## Installation + +```sh +npm install --save-dev babel-plugin-transform-es2015-destructuring +``` + +## Usage + +### Via `.babelrc` (Recommended) + +**.babelrc** + +```json +{ + "plugins": ["transform-es2015-destructuring"] +} +``` + +### Via CLI + +```sh +babel --plugins transform-es2015-destructuring script.js +``` + +### Via Node API + +```javascript +require("babel-core").transform("code", { + plugins: ["transform-es2015-destructuring"] +}); +``` diff --git a/node_modules/babel-plugin-transform-es2015-destructuring/lib/index.js b/node_modules/babel-plugin-transform-es2015-destructuring/lib/index.js new file mode 100644 index 000000000..689fb60c6 --- /dev/null +++ b/node_modules/babel-plugin-transform-es2015-destructuring/lib/index.js @@ -0,0 +1,551 @@ +"use strict"; + +exports.__esModule = true; + +var _classCallCheck2 = require("babel-runtime/helpers/classCallCheck"); + +var _classCallCheck3 = _interopRequireDefault(_classCallCheck2); + +var _getIterator2 = require("babel-runtime/core-js/get-iterator"); + +var _getIterator3 = _interopRequireDefault(_getIterator2); + +exports.default = function (_ref) { + var t = _ref.types; + + + function variableDeclarationHasPattern(node) { + for (var _iterator = node.declarations, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) { + var _ref2; + + if (_isArray) { + if (_i >= _iterator.length) break; + _ref2 = _iterator[_i++]; + } else { + _i = _iterator.next(); + if (_i.done) break; + _ref2 = _i.value; + } + + var declar = _ref2; + + if (t.isPattern(declar.id)) { + return true; + } + } + return false; + } + + function hasRest(pattern) { + for (var _iterator2 = pattern.elements, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) { + var _ref3; + + if (_isArray2) { + if (_i2 >= _iterator2.length) break; + _ref3 = _iterator2[_i2++]; + } else { + _i2 = _iterator2.next(); + if (_i2.done) break; + _ref3 = _i2.value; + } + + var elem = _ref3; + + if (t.isRestElement(elem)) { + return true; + } + } + return false; + } + + var arrayUnpackVisitor = { + ReferencedIdentifier: function ReferencedIdentifier(path, state) { + if (state.bindings[path.node.name]) { + state.deopt = true; + path.stop(); + } + } + }; + + var DestructuringTransformer = function () { + function DestructuringTransformer(opts) { + (0, _classCallCheck3.default)(this, DestructuringTransformer); + + this.blockHoist = opts.blockHoist; + this.operator = opts.operator; + this.arrays = {}; + this.nodes = opts.nodes || []; + this.scope = opts.scope; + this.file = opts.file; + this.kind = opts.kind; + } + + DestructuringTransformer.prototype.buildVariableAssignment = function buildVariableAssignment(id, init) { + var op = this.operator; + if (t.isMemberExpression(id)) op = "="; + + var node = void 0; + + if (op) { + node = t.expressionStatement(t.assignmentExpression(op, id, init)); + } else { + node = t.variableDeclaration(this.kind, [t.variableDeclarator(id, init)]); + } + + node._blockHoist = this.blockHoist; + + return node; + }; + + DestructuringTransformer.prototype.buildVariableDeclaration = function buildVariableDeclaration(id, init) { + var declar = t.variableDeclaration("var", [t.variableDeclarator(id, init)]); + declar._blockHoist = this.blockHoist; + return declar; + }; + + DestructuringTransformer.prototype.push = function push(id, init) { + if (t.isObjectPattern(id)) { + this.pushObjectPattern(id, init); + } else if (t.isArrayPattern(id)) { + this.pushArrayPattern(id, init); + } else if (t.isAssignmentPattern(id)) { + this.pushAssignmentPattern(id, init); + } else { + this.nodes.push(this.buildVariableAssignment(id, init)); + } + }; + + DestructuringTransformer.prototype.toArray = function toArray(node, count) { + if (this.file.opts.loose || t.isIdentifier(node) && this.arrays[node.name]) { + return node; + } else { + return this.scope.toArray(node, count); + } + }; + + DestructuringTransformer.prototype.pushAssignmentPattern = function pushAssignmentPattern(pattern, valueRef) { + + var tempValueRef = this.scope.generateUidIdentifierBasedOnNode(valueRef); + + var declar = t.variableDeclaration("var", [t.variableDeclarator(tempValueRef, valueRef)]); + declar._blockHoist = this.blockHoist; + this.nodes.push(declar); + + var tempConditional = t.conditionalExpression(t.binaryExpression("===", tempValueRef, t.identifier("undefined")), pattern.right, tempValueRef); + + var left = pattern.left; + if (t.isPattern(left)) { + var tempValueDefault = t.expressionStatement(t.assignmentExpression("=", tempValueRef, tempConditional)); + tempValueDefault._blockHoist = this.blockHoist; + + this.nodes.push(tempValueDefault); + this.push(left, tempValueRef); + } else { + this.nodes.push(this.buildVariableAssignment(left, tempConditional)); + } + }; + + DestructuringTransformer.prototype.pushObjectRest = function pushObjectRest(pattern, objRef, spreadProp, spreadPropIndex) { + + var keys = []; + + for (var i = 0; i < pattern.properties.length; i++) { + var prop = pattern.properties[i]; + + if (i >= spreadPropIndex) break; + + if (t.isRestProperty(prop)) continue; + + var key = prop.key; + if (t.isIdentifier(key) && !prop.computed) key = t.stringLiteral(prop.key.name); + keys.push(key); + } + + keys = t.arrayExpression(keys); + + var value = t.callExpression(this.file.addHelper("objectWithoutProperties"), [objRef, keys]); + this.nodes.push(this.buildVariableAssignment(spreadProp.argument, value)); + }; + + DestructuringTransformer.prototype.pushObjectProperty = function pushObjectProperty(prop, propRef) { + if (t.isLiteral(prop.key)) prop.computed = true; + + var pattern = prop.value; + var objRef = t.memberExpression(propRef, prop.key, prop.computed); + + if (t.isPattern(pattern)) { + this.push(pattern, objRef); + } else { + this.nodes.push(this.buildVariableAssignment(pattern, objRef)); + } + }; + + DestructuringTransformer.prototype.pushObjectPattern = function pushObjectPattern(pattern, objRef) { + + if (!pattern.properties.length) { + this.nodes.push(t.expressionStatement(t.callExpression(this.file.addHelper("objectDestructuringEmpty"), [objRef]))); + } + + if (pattern.properties.length > 1 && !this.scope.isStatic(objRef)) { + var temp = this.scope.generateUidIdentifierBasedOnNode(objRef); + this.nodes.push(this.buildVariableDeclaration(temp, objRef)); + objRef = temp; + } + + for (var i = 0; i < pattern.properties.length; i++) { + var prop = pattern.properties[i]; + if (t.isRestProperty(prop)) { + this.pushObjectRest(pattern, objRef, prop, i); + } else { + this.pushObjectProperty(prop, objRef); + } + } + }; + + DestructuringTransformer.prototype.canUnpackArrayPattern = function canUnpackArrayPattern(pattern, arr) { + if (!t.isArrayExpression(arr)) return false; + + if (pattern.elements.length > arr.elements.length) return; + if (pattern.elements.length < arr.elements.length && !hasRest(pattern)) return false; + + for (var _iterator3 = pattern.elements, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : (0, _getIterator3.default)(_iterator3);;) { + var _ref4; + + if (_isArray3) { + if (_i3 >= _iterator3.length) break; + _ref4 = _iterator3[_i3++]; + } else { + _i3 = _iterator3.next(); + if (_i3.done) break; + _ref4 = _i3.value; + } + + var elem = _ref4; + + if (!elem) return false; + + if (t.isMemberExpression(elem)) return false; + } + + for (var _iterator4 = arr.elements, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : (0, _getIterator3.default)(_iterator4);;) { + var _ref5; + + if (_isArray4) { + if (_i4 >= _iterator4.length) break; + _ref5 = _iterator4[_i4++]; + } else { + _i4 = _iterator4.next(); + if (_i4.done) break; + _ref5 = _i4.value; + } + + var _elem = _ref5; + + if (t.isSpreadElement(_elem)) return false; + + if (t.isCallExpression(_elem)) return false; + + if (t.isMemberExpression(_elem)) return false; + } + + var bindings = t.getBindingIdentifiers(pattern); + var state = { deopt: false, bindings: bindings }; + this.scope.traverse(arr, arrayUnpackVisitor, state); + return !state.deopt; + }; + + DestructuringTransformer.prototype.pushUnpackedArrayPattern = function pushUnpackedArrayPattern(pattern, arr) { + for (var i = 0; i < pattern.elements.length; i++) { + var elem = pattern.elements[i]; + if (t.isRestElement(elem)) { + this.push(elem.argument, t.arrayExpression(arr.elements.slice(i))); + } else { + this.push(elem, arr.elements[i]); + } + } + }; + + DestructuringTransformer.prototype.pushArrayPattern = function pushArrayPattern(pattern, arrayRef) { + if (!pattern.elements) return; + + if (this.canUnpackArrayPattern(pattern, arrayRef)) { + return this.pushUnpackedArrayPattern(pattern, arrayRef); + } + + var count = !hasRest(pattern) && pattern.elements.length; + + var toArray = this.toArray(arrayRef, count); + + if (t.isIdentifier(toArray)) { + arrayRef = toArray; + } else { + arrayRef = this.scope.generateUidIdentifierBasedOnNode(arrayRef); + this.arrays[arrayRef.name] = true; + this.nodes.push(this.buildVariableDeclaration(arrayRef, toArray)); + } + + for (var i = 0; i < pattern.elements.length; i++) { + var elem = pattern.elements[i]; + + if (!elem) continue; + + var elemRef = void 0; + + if (t.isRestElement(elem)) { + elemRef = this.toArray(arrayRef); + elemRef = t.callExpression(t.memberExpression(elemRef, t.identifier("slice")), [t.numericLiteral(i)]); + + elem = elem.argument; + } else { + elemRef = t.memberExpression(arrayRef, t.numericLiteral(i), true); + } + + this.push(elem, elemRef); + } + }; + + DestructuringTransformer.prototype.init = function init(pattern, ref) { + + if (!t.isArrayExpression(ref) && !t.isMemberExpression(ref)) { + var memo = this.scope.maybeGenerateMemoised(ref, true); + if (memo) { + this.nodes.push(this.buildVariableDeclaration(memo, ref)); + ref = memo; + } + } + + this.push(pattern, ref); + + return this.nodes; + }; + + return DestructuringTransformer; + }(); + + return { + visitor: { + ExportNamedDeclaration: function ExportNamedDeclaration(path) { + var declaration = path.get("declaration"); + if (!declaration.isVariableDeclaration()) return; + if (!variableDeclarationHasPattern(declaration.node)) return; + + var specifiers = []; + + for (var name in path.getOuterBindingIdentifiers(path)) { + var id = t.identifier(name); + specifiers.push(t.exportSpecifier(id, id)); + } + + path.replaceWith(declaration.node); + path.insertAfter(t.exportNamedDeclaration(null, specifiers)); + }, + ForXStatement: function ForXStatement(path, file) { + var node = path.node, + scope = path.scope; + + var left = node.left; + + if (t.isPattern(left)) { + + var temp = scope.generateUidIdentifier("ref"); + + node.left = t.variableDeclaration("var", [t.variableDeclarator(temp)]); + + path.ensureBlock(); + + node.body.body.unshift(t.variableDeclaration("var", [t.variableDeclarator(left, temp)])); + + return; + } + + if (!t.isVariableDeclaration(left)) return; + + var pattern = left.declarations[0].id; + if (!t.isPattern(pattern)) return; + + var key = scope.generateUidIdentifier("ref"); + node.left = t.variableDeclaration(left.kind, [t.variableDeclarator(key, null)]); + + var nodes = []; + + var destructuring = new DestructuringTransformer({ + kind: left.kind, + file: file, + scope: scope, + nodes: nodes + }); + + destructuring.init(pattern, key); + + path.ensureBlock(); + + var block = node.body; + block.body = nodes.concat(block.body); + }, + CatchClause: function CatchClause(_ref6, file) { + var node = _ref6.node, + scope = _ref6.scope; + + var pattern = node.param; + if (!t.isPattern(pattern)) return; + + var ref = scope.generateUidIdentifier("ref"); + node.param = ref; + + var nodes = []; + + var destructuring = new DestructuringTransformer({ + kind: "let", + file: file, + scope: scope, + nodes: nodes + }); + destructuring.init(pattern, ref); + + node.body.body = nodes.concat(node.body.body); + }, + AssignmentExpression: function AssignmentExpression(path, file) { + var node = path.node, + scope = path.scope; + + if (!t.isPattern(node.left)) return; + + var nodes = []; + + var destructuring = new DestructuringTransformer({ + operator: node.operator, + file: file, + scope: scope, + nodes: nodes + }); + + var ref = void 0; + if (path.isCompletionRecord() || !path.parentPath.isExpressionStatement()) { + ref = scope.generateUidIdentifierBasedOnNode(node.right, "ref"); + + nodes.push(t.variableDeclaration("var", [t.variableDeclarator(ref, node.right)])); + + if (t.isArrayExpression(node.right)) { + destructuring.arrays[ref.name] = true; + } + } + + destructuring.init(node.left, ref || node.right); + + if (ref) { + nodes.push(t.expressionStatement(ref)); + } + + path.replaceWithMultiple(nodes); + }, + VariableDeclaration: function VariableDeclaration(path, file) { + var node = path.node, + scope = path.scope, + parent = path.parent; + + if (t.isForXStatement(parent)) return; + if (!parent || !path.container) return; + if (!variableDeclarationHasPattern(node)) return; + + var nodes = []; + var declar = void 0; + + for (var i = 0; i < node.declarations.length; i++) { + declar = node.declarations[i]; + + var patternId = declar.init; + var pattern = declar.id; + + var destructuring = new DestructuringTransformer({ + blockHoist: node._blockHoist, + nodes: nodes, + scope: scope, + kind: node.kind, + file: file + }); + + if (t.isPattern(pattern)) { + destructuring.init(pattern, patternId); + + if (+i !== node.declarations.length - 1) { + t.inherits(nodes[nodes.length - 1], declar); + } + } else { + nodes.push(t.inherits(destructuring.buildVariableAssignment(declar.id, declar.init), declar)); + } + } + + var nodesOut = []; + for (var _iterator5 = nodes, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : (0, _getIterator3.default)(_iterator5);;) { + var _ref7; + + if (_isArray5) { + if (_i5 >= _iterator5.length) break; + _ref7 = _iterator5[_i5++]; + } else { + _i5 = _iterator5.next(); + if (_i5.done) break; + _ref7 = _i5.value; + } + + var _node = _ref7; + + var tail = nodesOut[nodesOut.length - 1]; + if (tail && t.isVariableDeclaration(tail) && t.isVariableDeclaration(_node) && tail.kind === _node.kind) { + var _tail$declarations; + + (_tail$declarations = tail.declarations).push.apply(_tail$declarations, _node.declarations); + } else { + nodesOut.push(_node); + } + } + + for (var _iterator6 = nodesOut, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : (0, _getIterator3.default)(_iterator6);;) { + var _ref8; + + if (_isArray6) { + if (_i6 >= _iterator6.length) break; + _ref8 = _iterator6[_i6++]; + } else { + _i6 = _iterator6.next(); + if (_i6.done) break; + _ref8 = _i6.value; + } + + var nodeOut = _ref8; + + if (!nodeOut.declarations) continue; + for (var _iterator7 = nodeOut.declarations, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : (0, _getIterator3.default)(_iterator7);;) { + var _ref9; + + if (_isArray7) { + if (_i7 >= _iterator7.length) break; + _ref9 = _iterator7[_i7++]; + } else { + _i7 = _iterator7.next(); + if (_i7.done) break; + _ref9 = _i7.value; + } + + var declaration = _ref9; + var name = declaration.id.name; + + if (scope.bindings[name]) { + scope.bindings[name].kind = nodeOut.kind; + } + } + } + + if (nodesOut.length === 1) { + path.replaceWith(nodesOut[0]); + } else { + path.replaceWithMultiple(nodesOut); + } + } + } + }; +}; + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +module.exports = exports["default"];
\ No newline at end of file diff --git a/node_modules/babel-plugin-transform-es2015-destructuring/package.json b/node_modules/babel-plugin-transform-es2015-destructuring/package.json new file mode 100644 index 000000000..93ab9d2b8 --- /dev/null +++ b/node_modules/babel-plugin-transform-es2015-destructuring/package.json @@ -0,0 +1,17 @@ +{ + "name": "babel-plugin-transform-es2015-destructuring", + "version": "6.23.0", + "description": "Compile ES2015 destructuring to ES5", + "repository": "https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-es2015-destructuring", + "license": "MIT", + "main": "lib/index.js", + "keywords": [ + "babel-plugin" + ], + "dependencies": { + "babel-runtime": "^6.22.0" + }, + "devDependencies": { + "babel-helper-plugin-test-runner": "^6.22.0" + } +} |