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path: root/node_modules/babylon/lib/parser/lval.js
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Diffstat (limited to 'node_modules/babylon/lib/parser/lval.js')
-rw-r--r--node_modules/babylon/lib/parser/lval.js315
1 files changed, 0 insertions, 315 deletions
diff --git a/node_modules/babylon/lib/parser/lval.js b/node_modules/babylon/lib/parser/lval.js
deleted file mode 100644
index 1bdbfa1f0..000000000
--- a/node_modules/babylon/lib/parser/lval.js
+++ /dev/null
@@ -1,315 +0,0 @@
-"use strict";
-
-var _types = require("../tokenizer/types");
-
-var _index = require("./index");
-
-var _index2 = _interopRequireDefault(_index);
-
-var _identifier = require("../util/identifier");
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-var pp = _index2.default.prototype;
-
-// Convert existing expression atom to assignable pattern
-// if possible.
-
-/* eslint indent: 0 */
-
-pp.toAssignable = function (node, isBinding, contextDescription) {
- if (node) {
- switch (node.type) {
- case "Identifier":
- case "ObjectPattern":
- case "ArrayPattern":
- case "AssignmentPattern":
- break;
-
- case "ObjectExpression":
- node.type = "ObjectPattern";
- for (var _iterator = node.properties, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
- var _ref;
-
- if (_isArray) {
- if (_i >= _iterator.length) break;
- _ref = _iterator[_i++];
- } else {
- _i = _iterator.next();
- if (_i.done) break;
- _ref = _i.value;
- }
-
- var prop = _ref;
-
- if (prop.type === "ObjectMethod") {
- if (prop.kind === "get" || prop.kind === "set") {
- this.raise(prop.key.start, "Object pattern can't contain getter or setter");
- } else {
- this.raise(prop.key.start, "Object pattern can't contain methods");
- }
- } else {
- this.toAssignable(prop, isBinding, "object destructuring pattern");
- }
- }
- break;
-
- case "ObjectProperty":
- this.toAssignable(node.value, isBinding, contextDescription);
- break;
-
- case "SpreadProperty":
- node.type = "RestProperty";
- break;
-
- case "ArrayExpression":
- node.type = "ArrayPattern";
- this.toAssignableList(node.elements, isBinding, contextDescription);
- break;
-
- case "AssignmentExpression":
- if (node.operator === "=") {
- node.type = "AssignmentPattern";
- delete node.operator;
- } else {
- this.raise(node.left.end, "Only '=' operator can be used for specifying default value.");
- }
- break;
-
- case "MemberExpression":
- if (!isBinding) break;
-
- default:
- {
- var message = "Invalid left-hand side" + (contextDescription ? " in " + contextDescription : /* istanbul ignore next */"expression");
- this.raise(node.start, message);
- }
- }
- }
- return node;
-};
-
-// Convert list of expression atoms to binding list.
-
-pp.toAssignableList = function (exprList, isBinding, contextDescription) {
- 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, contextDescription);
- 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, contextDescription);
- }
- return exprList;
-};
-
-// Convert list of expression atoms to a list of
-
-pp.toReferencedList = function (exprList) {
- return exprList;
-};
-
-// Parses spread element.
-
-pp.parseSpread = function (refShorthandDefaultPos) {
- var node = this.startNode();
- this.next();
- node.argument = this.parseMaybeAssign(false, refShorthandDefaultPos);
- return this.finishNode(node, "SpreadElement");
-};
-
-pp.parseRest = function () {
- var node = this.startNode();
- this.next();
- node.argument = this.parseBindingIdentifier();
- return this.finishNode(node, "RestElement");
-};
-
-pp.shouldAllowYieldIdentifier = function () {
- return this.match(_types.types._yield) && !this.state.strict && !this.state.inGenerator;
-};
-
-pp.parseBindingIdentifier = function () {
- return this.parseIdentifier(this.shouldAllowYieldIdentifier());
-};
-
-// Parses lvalue (assignable) atom.
-
-pp.parseBindingAtom = function () {
- switch (this.state.type) {
- case _types.types._yield:
- if (this.state.strict || this.state.inGenerator) this.unexpected();
- // fall-through
- case _types.types.name:
- return this.parseIdentifier(true);
-
- case _types.types.bracketL:
- var node = this.startNode();
- this.next();
- node.elements = this.parseBindingList(_types.types.bracketR, true);
- return this.finishNode(node, "ArrayPattern");
-
- case _types.types.braceL:
- return this.parseObj(true);
-
- default:
- this.unexpected();
- }
-};
-
-pp.parseBindingList = function (close, allowEmpty) {
- var elts = [];
- var first = true;
- while (!this.eat(close)) {
- if (first) {
- first = false;
- } else {
- this.expect(_types.types.comma);
- }
- if (allowEmpty && this.match(_types.types.comma)) {
- elts.push(null);
- } else if (this.eat(close)) {
- break;
- } else if (this.match(_types.types.ellipsis)) {
- elts.push(this.parseAssignableListItemTypes(this.parseRest()));
- this.expect(close);
- break;
- } else {
- var decorators = [];
- while (this.match(_types.types.at)) {
- decorators.push(this.parseDecorator());
- }
- var left = this.parseMaybeDefault();
- if (decorators.length) {
- left.decorators = decorators;
- }
- this.parseAssignableListItemTypes(left);
- elts.push(this.parseMaybeDefault(left.start, left.loc.start, left));
- }
- }
- return elts;
-};
-
-pp.parseAssignableListItemTypes = function (param) {
- return param;
-};
-
-// Parses assignment pattern around given atom if possible.
-
-pp.parseMaybeDefault = function (startPos, startLoc, left) {
- startLoc = startLoc || this.state.startLoc;
- startPos = startPos || this.state.start;
- left = left || this.parseBindingAtom();
- if (!this.eat(_types.types.eq)) return left;
-
- var node = this.startNodeAt(startPos, startLoc);
- 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, contextDescription) {
- switch (expr.type) {
- case "Identifier":
- if (this.state.strict && (_identifier.reservedWords.strictBind(expr.name) || _identifier.reservedWords.strict(expr.name))) {
- this.raise(expr.start, (isBinding ? "Binding " : "Assigning to ") + expr.name + " in strict mode");
- }
-
- if (checkClashes) {
- // we need to prefix this with an underscore for the cases where we have a key of
- // `__proto__`. there's a bug in old V8 where the following wouldn't work:
- //
- // > var obj = Object.create(null);
- // undefined
- // > obj.__proto__
- // null
- // > obj.__proto__ = true;
- // true
- // > obj.__proto__
- // null
- var key = "_" + expr.name;
-
- if (checkClashes[key]) {
- this.raise(expr.start, "Argument name clash in strict mode");
- } else {
- checkClashes[key] = true;
- }
- }
- break;
-
- case "MemberExpression":
- if (isBinding) this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression");
- break;
-
- case "ObjectPattern":
- for (var _iterator2 = expr.properties, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
- var _ref2;
-
- if (_isArray2) {
- if (_i2 >= _iterator2.length) break;
- _ref2 = _iterator2[_i2++];
- } else {
- _i2 = _iterator2.next();
- if (_i2.done) break;
- _ref2 = _i2.value;
- }
-
- var prop = _ref2;
-
- if (prop.type === "ObjectProperty") prop = prop.value;
- this.checkLVal(prop, isBinding, checkClashes, "object destructuring pattern");
- }
- break;
-
- case "ArrayPattern":
- for (var _iterator3 = expr.elements, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
- var _ref3;
-
- if (_isArray3) {
- if (_i3 >= _iterator3.length) break;
- _ref3 = _iterator3[_i3++];
- } else {
- _i3 = _iterator3.next();
- if (_i3.done) break;
- _ref3 = _i3.value;
- }
-
- var elem = _ref3;
-
- if (elem) this.checkLVal(elem, isBinding, checkClashes, "array destructuring pattern");
- }
- break;
-
- case "AssignmentPattern":
- this.checkLVal(expr.left, isBinding, checkClashes, "assignment pattern");
- break;
-
- case "RestProperty":
- this.checkLVal(expr.argument, isBinding, checkClashes, "rest property");
- break;
-
- case "RestElement":
- this.checkLVal(expr.argument, isBinding, checkClashes, "rest element");
- break;
-
- default:
- {
- var message = (isBinding ? /* istanbul ignore next */"Binding invalid" : "Invalid") + " left-hand side" + (contextDescription ? " in " + contextDescription : /* istanbul ignore next */"expression");
- this.raise(expr.start, message);
- }
- }
-}; \ No newline at end of file
generated by cgit v1.2.3 (git 2.26.2) at 2024-08-21 22:39:03 +0000