Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "test/cctest/compiler/function-tester.h" |
| 6 | |
| 7 | namespace v8 { |
| 8 | namespace internal { |
| 9 | namespace compiler { |
| 10 | |
| 11 | TEST(ArgumentsMapped) { |
| 12 | FunctionTester T("(function(a) { return arguments; })"); |
| 13 | |
| 14 | Handle<Object> arguments; |
| 15 | T.Call(T.Val(19), T.Val(23), T.Val(42), T.Val(65)).ToHandle(&arguments); |
| 16 | CHECK(arguments->IsJSObject() && !arguments->IsJSArray()); |
| 17 | CHECK(JSObject::cast(*arguments)->HasSloppyArgumentsElements()); |
| 18 | Handle<String> l = T.isolate->factory()->length_string(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 19 | Handle<Object> length = Object::GetProperty(arguments, l).ToHandleChecked(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 20 | CHECK_EQ(4, length->Number()); |
| 21 | } |
| 22 | |
| 23 | |
| 24 | TEST(ArgumentsUnmapped) { |
| 25 | FunctionTester T("(function(a) { 'use strict'; return arguments; })"); |
| 26 | |
| 27 | Handle<Object> arguments; |
| 28 | T.Call(T.Val(19), T.Val(23), T.Val(42), T.Val(65)).ToHandle(&arguments); |
| 29 | CHECK(arguments->IsJSObject() && !arguments->IsJSArray()); |
| 30 | CHECK(!JSObject::cast(*arguments)->HasSloppyArgumentsElements()); |
| 31 | Handle<String> l = T.isolate->factory()->length_string(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 32 | Handle<Object> length = Object::GetProperty(arguments, l).ToHandleChecked(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 33 | CHECK_EQ(4, length->Number()); |
| 34 | } |
| 35 | |
| 36 | |
| 37 | TEST(ArgumentsRest) { |
| 38 | FunctionTester T("(function(a, ...args) { return args; })"); |
| 39 | |
| 40 | Handle<Object> arguments; |
| 41 | T.Call(T.Val(19), T.Val(23), T.Val(42), T.Val(65)).ToHandle(&arguments); |
| 42 | CHECK(arguments->IsJSObject() && arguments->IsJSArray()); |
| 43 | CHECK(!JSObject::cast(*arguments)->HasSloppyArgumentsElements()); |
| 44 | Handle<String> l = T.isolate->factory()->length_string(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 45 | Handle<Object> length = Object::GetProperty(arguments, l).ToHandleChecked(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 46 | CHECK_EQ(3, length->Number()); |
| 47 | } |
| 48 | |
| 49 | } // namespace compiler |
| 50 | } // namespace internal |
| 51 | } // namespace v8 |