1// Copyright 2018 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#ifndef V8_EXECUTION_ARGUMENTS_INL_H_
6#define V8_EXECUTION_ARGUMENTS_INL_H_
7
8#include "src/execution/arguments.h"
9
10#include "src/handles/handles-inl.h"
11#include "src/objects/objects-inl.h"  // TODO(jkummerow): Just smi-inl.h.
12#include "src/objects/tagged-index.h"
13
14namespace v8 {
15namespace internal {
16
17template <ArgumentsType T>
18Arguments<T>::ChangeValueScope::ChangeValueScope(Isolate* isolate,
19                                                 Arguments* args, int index,
20                                                 Object value)
21    : location_(args->address_of_arg_at(index)) {
22  old_value_ = handle(Object(*location_), isolate);
23  *location_ = value.ptr();
24}
25
26template <ArgumentsType T>
27int Arguments<T>::smi_value_at(int index) const {
28  Object obj = (*this)[index];
29  int value = Smi::ToInt(obj);
30  DCHECK_IMPLIES(obj.IsTaggedIndex(), value == tagged_index_value_at(index));
31  return value;
32}
33
34template <ArgumentsType T>
35uint32_t Arguments<T>::positive_smi_value_at(int index) const {
36  int value = smi_value_at(index);
37  DCHECK_LE(0, value);
38  return value;
39}
40
41template <ArgumentsType T>
42int Arguments<T>::tagged_index_value_at(int index) const {
43  return static_cast<int>(TaggedIndex::cast((*this)[index]).value());
44}
45
46template <ArgumentsType T>
47double Arguments<T>::number_value_at(int index) const {
48  return (*this)[index].Number();
49}
50
51}  // namespace internal
52}  // namespace v8
53
54#endif  // V8_EXECUTION_ARGUMENTS_INL_H_
55