240 lines
15 KiB
JavaScript
240 lines
15 KiB
JavaScript
"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 (ast, strictCode, env, realm) {
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if (ast.callee.type === "Super") {
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return (0, _SuperCall2.default)(ast.arguments, strictCode, env, realm);
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}
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// ECMA262 12.3.4.1
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realm.setNextExecutionContextLocation(ast.loc);
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// 1. Let ref be the result of evaluating MemberExpression.
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var ref = env.evaluate(ast.callee, strictCode);
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// 2. Let func be ? GetValue(ref).
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var func = _singletons.Environment.GetValue(realm, ref);
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return EvaluateCall(ref, func, ast, strictCode, env, realm);
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};
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var _errors = require("../errors.js");
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var _completions = require("../completions.js");
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var _environment = require("../environment.js");
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var _index = require("../values/index.js");
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var _singletons = require("../singletons.js");
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var _index2 = require("../methods/index.js");
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var _invariant = require("../invariant.js");
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var _invariant2 = _interopRequireDefault(_invariant);
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var _babelTypes = require("babel-types");
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var t = _interopRequireWildcard(_babelTypes);
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var _SuperCall = require("./SuperCall");
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var _SuperCall2 = _interopRequireDefault(_SuperCall);
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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; } }
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function callBothFunctionsAndJoinTheirEffects(args, ast, strictCode, env, realm) {
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var _args = _slicedToArray(args, 3),
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cond = _args[0],
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func1 = _args[1],
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func2 = _args[2];
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(0, _invariant2.default)(cond instanceof _index.AbstractValue && cond.getType() === _index.BooleanValue);
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(0, _invariant2.default)(_index.Value.isTypeCompatibleWith(func1.getType(), _index.FunctionValue));
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(0, _invariant2.default)(_index.Value.isTypeCompatibleWith(func2.getType(), _index.FunctionValue));
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var _realm$evaluateForEff = realm.evaluateForEffects(function () {
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return EvaluateCall(func1, func1, ast, strictCode, env, realm);
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}),
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_realm$evaluateForEff2 = _slicedToArray(_realm$evaluateForEff, 5),
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compl1 = _realm$evaluateForEff2[0],
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gen1 = _realm$evaluateForEff2[1],
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bindings1 = _realm$evaluateForEff2[2],
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properties1 = _realm$evaluateForEff2[3],
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createdObj1 = _realm$evaluateForEff2[4];
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var _realm$evaluateForEff3 = realm.evaluateForEffects(function () {
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return EvaluateCall(func2, func2, ast, strictCode, env, realm);
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}),
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_realm$evaluateForEff4 = _slicedToArray(_realm$evaluateForEff3, 5),
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compl2 = _realm$evaluateForEff4[0],
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gen2 = _realm$evaluateForEff4[1],
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bindings2 = _realm$evaluateForEff4[2],
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properties2 = _realm$evaluateForEff4[3],
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createdObj2 = _realm$evaluateForEff4[4];
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var joinedEffects = _singletons.Join.joinEffects(realm, cond, [compl1, gen1, bindings1, properties1, createdObj1], [compl2, gen2, bindings2, properties2, createdObj2]);
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var completion = joinedEffects[0];
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if (completion instanceof _completions.PossiblyNormalCompletion) {
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// in this case one of the branches may complete abruptly, which means that
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// not all control flow branches join into one flow at this point.
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// Consequently we have to continue tracking changes until the point where
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// all the branches come together into one.
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completion = realm.composeWithSavedCompletion(completion);
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}
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// Note that the effects of (non joining) abrupt branches are not included
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// in joinedEffects, but are tracked separately inside completion.
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realm.applyEffects(joinedEffects);
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// return or throw completion
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if (completion instanceof _completions.AbruptCompletion) throw completion;
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(0, _invariant2.default)(completion instanceof _index.Value);
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return completion;
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}
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function EvaluateCall(ref, func, ast, strictCode, env, realm) {
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function generateRuntimeCall() {
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var args = [func];
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var _ref = ref instanceof _environment.Reference ? [ref.base, ref.referencedName] : [],
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_ref2 = _slicedToArray(_ref, 2),
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thisArg = _ref2[0],
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propName = _ref2[1];
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if (thisArg instanceof _index.Value) args = [thisArg];
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if (propName !== undefined && typeof propName !== "string") args.push(propName);
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args = args.concat((0, _index2.ArgumentListEvaluation)(realm, strictCode, env, ast.arguments));
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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 = args[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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var arg = _step.value;
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if (arg !== func) {
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_singletons.Leak.leakValue(realm, arg, ast.loc);
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}
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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 _index.AbstractValue.createTemporalFromBuildFunction(realm, _index.Value, args, function (nodes) {
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var callFunc = void 0;
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var argStart = 1;
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if (thisArg instanceof _index.Value) {
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if (typeof propName === "string") {
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callFunc = t.memberExpression(nodes[0], t.identifier(propName), !t.isValidIdentifier(propName));
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} else {
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callFunc = t.memberExpression(nodes[0], nodes[1], true);
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argStart = 2;
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}
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} else {
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callFunc = nodes[0];
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}
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var fun_args = nodes.slice(argStart);
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return t.callExpression(callFunc, fun_args);
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});
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}
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if (func instanceof _index.AbstractValue) {
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if (!_index.Value.isTypeCompatibleWith(func.getType(), _index.FunctionValue)) {
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var loc = ast.callee.type === "MemberExpression" ? ast.callee.property.loc : ast.callee.loc;
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var error = new _errors.CompilerDiagnostic("might not be a function", loc, "PP0005", "RecoverableError");
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if (realm.handleError(error) === "Fail") throw new _errors.FatalError();
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} else if (func.kind === "conditional") {
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return callBothFunctionsAndJoinTheirEffects(func.args, ast, strictCode, env, realm);
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} else {
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// Assume that it is a safe function. TODO #705: really?
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}
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return generateRuntimeCall();
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}
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(0, _invariant2.default)(func instanceof _index.ConcreteValue);
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// 3. If Type(ref) is Reference and IsPropertyReference(ref) is false and GetReferencedName(ref) is "eval", then
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if (ref instanceof _environment.Reference && !_singletons.Environment.IsPropertyReference(realm, ref) && _singletons.Environment.GetReferencedName(realm, ref) === "eval") {
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// a. If SameValue(func, %eval%) is true, then
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if ((0, _index2.SameValue)(realm, func, realm.intrinsics.eval)) {
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// i. Let argList be ? ArgumentListEvaluation(Arguments).
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var argList = (0, _index2.ArgumentListEvaluation)(realm, strictCode, env, ast.arguments);
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// ii. If argList has no elements, return undefined.
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if (argList.length === 0) return realm.intrinsics.undefined;
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// iii. Let evalText be the first element of argList.
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var evalText = argList[0];
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// iv. If the source code matching this CallExpression is strict code, let strictCaller be true. Otherwise let strictCaller be false.
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var strictCaller = strictCode;
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// v. Let evalRealm be the current Realm Record.
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var evalRealm = realm;
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// vi. Return ? PerformEval(evalText, evalRealm, strictCaller, true).
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if (evalText instanceof _index.AbstractValue) {
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var _loc = ast.arguments[0].loc;
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var _error = new _errors.CompilerDiagnostic("eval argument must be a known value", _loc, "PP0006", "RecoverableError");
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if (realm.handleError(_error) === "Fail") throw new _errors.FatalError();
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// Assume that it is a safe eval with no visible heap changes or abrupt control flow.
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return generateRuntimeCall();
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}
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return _singletons.Functions.PerformEval(realm, evalText, evalRealm, strictCaller, true);
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}
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}
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var thisValue = void 0;
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// 4. If Type(ref) is Reference, then
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if (ref instanceof _environment.Reference) {
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// a. If IsPropertyReference(ref) is true, then
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if (_singletons.Environment.IsPropertyReference(realm, ref)) {
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// i. Let thisValue be GetThisValue(ref).
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thisValue = (0, _index2.GetThisValue)(realm, ref);
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} else {
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// b. Else, the base of ref is an Environment Record
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// i. Let refEnv be GetBase(ref).
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var refEnv = _singletons.Environment.GetBase(realm, ref);
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(0, _invariant2.default)(refEnv instanceof _environment.EnvironmentRecord);
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// ii. Let thisValue be refEnv.WithBaseObject().
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thisValue = refEnv.WithBaseObject();
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}
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} else {
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// 5. Else Type(ref) is not Reference,
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// a. Let thisValue be undefined.
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thisValue = realm.intrinsics.undefined;
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}
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// 6. Let thisCall be this CallExpression.
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var thisCall = ast;
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// 7. Let tailCall be IsInTailPosition(thisCall). (See 14.6.1)
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var tailCall = (0, _index2.IsInTailPosition)(realm, thisCall);
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// 8. Return ? EvaluateDirectCall(func, thisValue, Arguments, tailCall).
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return (0, _index2.EvaluateDirectCall)(realm, strictCode, env, ref, func, thisValue, ast.arguments, tailCall);
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}
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//# sourceMappingURL=CallExpression.js.map
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