diff options
Diffstat (limited to 'node_modules/babel-plugin-transform-es2015-destructuring/lib/index.js')
-rw-r--r-- | node_modules/babel-plugin-transform-es2015-destructuring/lib/index.js | 551 |
1 files changed, 0 insertions, 551 deletions
diff --git a/node_modules/babel-plugin-transform-es2015-destructuring/lib/index.js b/node_modules/babel-plugin-transform-es2015-destructuring/lib/index.js deleted file mode 100644 index 689fb60..0000000 --- a/node_modules/babel-plugin-transform-es2015-destructuring/lib/index.js +++ /dev/null @@ -1,551 +0,0 @@ -"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"];
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