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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "test/cctest/compiler/function-tester.h"
using namespace v8::internal;
using namespace v8::internal::compiler;
TEST(ArgumentsMapped) {
FunctionTester T("(function(a) { return arguments; })");
Handle<Object> arguments;
T.Call(T.Val(19), T.Val(23), T.Val(42), T.Val(65)).ToHandle(&arguments);
CHECK(arguments->IsJSObject() && !arguments->IsJSArray());
CHECK(JSObject::cast(*arguments)->HasSloppyArgumentsElements());
Handle<String> l = T.isolate->factory()->length_string();
Handle<Object> length = JSObject::GetProperty(arguments, l).ToHandleChecked();
CHECK_EQ(4, length->Number());
}
TEST(ArgumentsUnmapped) {
FunctionTester T("(function(a) { 'use strict'; return arguments; })");
Handle<Object> arguments;
T.Call(T.Val(19), T.Val(23), T.Val(42), T.Val(65)).ToHandle(&arguments);
CHECK(arguments->IsJSObject() && !arguments->IsJSArray());
CHECK(!JSObject::cast(*arguments)->HasSloppyArgumentsElements());
Handle<String> l = T.isolate->factory()->length_string();
Handle<Object> length = JSObject::GetProperty(arguments, l).ToHandleChecked();
CHECK_EQ(4, length->Number());
}
TEST(ArgumentsRest) {
FLAG_harmony_rest_parameters = true;
FunctionTester T("(function(a, ...args) { return args; })");
Handle<Object> arguments;
T.Call(T.Val(19), T.Val(23), T.Val(42), T.Val(65)).ToHandle(&arguments);
CHECK(arguments->IsJSObject() && arguments->IsJSArray());
CHECK(!JSObject::cast(*arguments)->HasSloppyArgumentsElements());
Handle<String> l = T.isolate->factory()->length_string();
Handle<Object> length = JSObject::GetProperty(arguments, l).ToHandleChecked();
CHECK_EQ(3, length->Number());
}
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