06a792b7cc
Make the parser handle references to "this" as unresolved variables, so the same logic as for the rest of function parameters is used for the receiver. Minor additions to the code generation handle copying the receiver to the context, along with the rest of the function parameters. Based on work by Adrian Perez de Castro <aperez@igalia.com>. BUG=v8:2700 LOG=N Review URL: https://codereview.chromium.org/1130733003 Cr-Commit-Position: refs/heads/master@{#28263}
82 lines
3.0 KiB
JavaScript
82 lines
3.0 KiB
JavaScript
// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --harmony-arrow-functions
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var object = {};
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var global = this;
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var call = Function.call.bind(Function.call);
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var globalSloppyArrow = () => this;
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var globalStrictArrow = () => { "use strict"; return this; };
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var globalSloppyArrowEval = (s) => eval(s);
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var globalStrictArrowEval = (s) => { "use strict"; return eval(s); };
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var sloppyFunctionArrow = function() {
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return (() => this)();
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};
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var strictFunctionArrow = function() {
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"use strict";
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return (() => this)();
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};
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var sloppyFunctionEvalArrow = function() {
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return eval("(() => this)()");
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};
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var strictFunctionEvalArrow = function() {
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"use strict";
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return eval("(() => this)()");
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};
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var sloppyFunctionArrowEval = function(s) {
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return (() => eval(s))();
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};
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var strictFunctionArrowEval = function(s) {
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"use strict";
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return (() => eval(s))();
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};
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var withObject = { 'this': object }
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var arrowInsideWith, arrowInsideWithEval;
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with (withObject) {
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arrowInsideWith = () => this;
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arrowInsideWithEval = (s) => eval(s);
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}
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assertEquals(global, call(globalSloppyArrow, object));
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assertEquals(global, call(globalStrictArrow, object));
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assertEquals(global, call(globalSloppyArrowEval, object, "this"));
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assertEquals(global, call(globalStrictArrowEval, object, "this"));
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assertEquals(global, call(globalSloppyArrowEval, object, "(() => this)()"));
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assertEquals(global, call(globalStrictArrowEval, object, "(() => this)()"));
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assertEquals(object, call(sloppyFunctionArrow, object));
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assertEquals(global, call(sloppyFunctionArrow, undefined));
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assertEquals(object, call(strictFunctionArrow, object));
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assertEquals(undefined, call(strictFunctionArrow, undefined));
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assertEquals(object, call(sloppyFunctionEvalArrow, object));
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assertEquals(global, call(sloppyFunctionEvalArrow, undefined));
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assertEquals(object, call(strictFunctionEvalArrow, object));
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assertEquals(undefined, call(strictFunctionEvalArrow, undefined));
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assertEquals(object, call(sloppyFunctionArrowEval, object, "this"));
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assertEquals(global, call(sloppyFunctionArrowEval, undefined, "this"));
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assertEquals(object, call(strictFunctionArrowEval, object, "this"));
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assertEquals(undefined, call(strictFunctionArrowEval, undefined, "this"));
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assertEquals(object,
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call(sloppyFunctionArrowEval, object, "(() => this)()"));
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assertEquals(global,
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call(sloppyFunctionArrowEval, undefined, "(() => this)()"));
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assertEquals(object,
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call(strictFunctionArrowEval, object, "(() => this)()"));
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assertEquals(undefined,
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call(strictFunctionArrowEval, undefined, "(() => this)()"));
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assertEquals(global, call(arrowInsideWith, undefined));
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assertEquals(global, call(arrowInsideWith, object));
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assertEquals(global, call(arrowInsideWithEval, undefined, "this"));
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assertEquals(global, call(arrowInsideWithEval, object, "this"));
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assertEquals(global, call(arrowInsideWithEval, undefined, "(() => this)()"));
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assertEquals(global, call(arrowInsideWithEval, object, "(() => this)()"));
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