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s.golasch
171
build/node_modules/prepack/lib/intrinsics/ecma262/Error.js
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171
build/node_modules/prepack/lib/intrinsics/ecma262/Error.js
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }(); /**
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* Copyright (c) 2017-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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exports.default = function (realm) {
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return build("Error", realm, false);
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};
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exports.describeLocation = describeLocation;
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exports.build = build;
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var _index = require("../../values/index.js");
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var _index2 = require("../../methods/index.js");
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var _singletons = require("../../singletons.js");
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var _invariant = require("../../invariant.js");
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var _invariant2 = _interopRequireDefault(_invariant);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function describeLocation(realm, callerFn, env, loc) {
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var locString = "";
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var displayName = "";
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if (callerFn) {
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if (callerFn instanceof _index.NativeFunctionValue) {
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locString = "native";
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}
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var name = callerFn.$Get("name", callerFn);
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if (!name.mightBeUndefined()) displayName = _singletons.To.ToStringPartial(realm, name);else name.throwIfNotConcrete();
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if (env && env.$NewTarget) displayName = "new " + displayName;
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}
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if (!locString) {
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if (loc) {
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locString = loc.start.line + ":" + (loc.start.column + 1);
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if (loc.source) locString = loc.source + ":" + locString;
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} else {
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locString = (loc ? loc.source : undefined) || "unknown";
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if (!displayName) return undefined;
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}
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}
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if (displayName) {
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return "at " + displayName + " (" + locString + ")";
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} else {
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return "at " + locString;
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}
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}
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function buildStack(realm, context) {
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(0, _invariant2.default)(context.$ErrorData);
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var stack = context.$ErrorData.contextStack;
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if (!stack) return realm.intrinsics.undefined;
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var lines = [];
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var header = "";
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header += _singletons.To.ToStringPartial(realm, (0, _index2.Get)(realm, context, "name"));
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var msg = (0, _index2.Get)(realm, context, "message");
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if (!msg.mightBeUndefined()) {
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msg = _singletons.To.ToStringPartial(realm, msg);
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if (msg) header += ": " + msg;
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} else {
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msg.throwIfNotConcrete();
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}
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var _iteratorNormalCompletion = true;
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var _didIteratorError = false;
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var _iteratorError = undefined;
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try {
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for (var _iterator = stack.reverse()[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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var executionContext = _step.value;
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var caller = executionContext.caller;
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var locString = describeLocation(realm, caller ? caller.function : undefined, caller ? caller.lexicalEnvironment : undefined, executionContext.loc);
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if (locString !== undefined) lines.push(locString);
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}
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} catch (err) {
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_didIteratorError = true;
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_iteratorError = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion && _iterator.return) {
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_iterator.return();
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}
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} finally {
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if (_didIteratorError) {
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throw _iteratorError;
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}
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}
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}
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return new _index.StringValue(realm, header + "\n " + lines.join("\n "));
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}
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function build(name, realm) {
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var inheritError = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
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var func = new _index.NativeFunctionValue(realm, name, name, 1, function (context, _ref, argLength, NewTarget) {
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var _ref2 = _slicedToArray(_ref, 1),
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message = _ref2[0];
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// 1. If NewTarget is undefined, let newTarget be the active function object, else let newTarget be NewTarget.
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var newTarget = NewTarget || func;
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// 2. Let O be ? OrdinaryCreateFromConstructor(newTarget, "%ErrorPrototype%", « [[ErrorData]] »).
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var O = _singletons.Create.OrdinaryCreateFromConstructor(realm, newTarget, name + "Prototype", { $ErrorData: undefined });
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O.$ErrorData = {
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contextStack: realm.contextStack.slice(1),
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locationData: undefined
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};
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// Build a text description of the stack.
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var stackDesc = {
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value: buildStack(realm, O),
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enumerable: false,
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configurable: true,
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writable: true
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};
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_singletons.Properties.DefinePropertyOrThrow(realm, O, "stack", stackDesc);
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// 3. If message is not undefined, then
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if (!message.mightBeUndefined()) {
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// a. Let msg be ? ToString(message).
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var msg = message.getType() === _index.StringValue ? message : _singletons.To.ToStringValue(realm, message);
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// b. Let msgDesc be the PropertyDescriptor{[[Value]]: msg, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true}.
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var msgDesc = {
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value: msg,
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writable: true,
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enumerable: false,
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configurable: true
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};
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// c. Perform ! DefinePropertyOrThrow(O, "message", msgDesc).
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_singletons.Properties.DefinePropertyOrThrow(realm, O, "message", msgDesc);
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} else {
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message.throwIfNotConcrete();
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}
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// 4. Return O.
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return O;
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});
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if (inheritError) {
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func.$Prototype = realm.intrinsics.Error;
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}
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return func;
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}
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//# sourceMappingURL=Error.js.map
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