1// Copyright 2013 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 "src/v8.h"
6
7#include "src/arguments.h"
8#include "src/vm-state-inl.h"
9
10namespace v8 {
11namespace internal {
12
13
14template<typename T>
15template<typename V>
16v8::Handle<V> CustomArguments<T>::GetReturnValue(Isolate* isolate) {
17  // Check the ReturnValue.
18  Object** handle = &this->begin()[kReturnValueOffset];
19  // Nothing was set, return empty handle as per previous behaviour.
20  if ((*handle)->IsTheHole()) return v8::Handle<V>();
21  return Utils::Convert<Object, V>(Handle<Object>(handle));
22}
23
24
25v8::Handle<v8::Value> FunctionCallbackArguments::Call(FunctionCallback f) {
26  Isolate* isolate = this->isolate();
27  VMState<EXTERNAL> state(isolate);
28  ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f));
29  FunctionCallbackInfo<v8::Value> info(begin(),
30                                       argv_,
31                                       argc_,
32                                       is_construct_call_);
33  f(info);
34  return GetReturnValue<v8::Value>(isolate);
35}
36
37
38#define WRITE_CALL_0(Function, ReturnValue)                                    \
39v8::Handle<ReturnValue> PropertyCallbackArguments::Call(Function f) {          \
40  Isolate* isolate = this->isolate();                                          \
41  VMState<EXTERNAL> state(isolate);                                            \
42  ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f));                 \
43  PropertyCallbackInfo<ReturnValue> info(begin());                             \
44  f(info);                                                                     \
45  return GetReturnValue<ReturnValue>(isolate);                                 \
46}
47
48
49#define WRITE_CALL_1(Function, ReturnValue, Arg1)                              \
50v8::Handle<ReturnValue> PropertyCallbackArguments::Call(Function f,            \
51                                                        Arg1 arg1) {           \
52  Isolate* isolate = this->isolate();                                          \
53  VMState<EXTERNAL> state(isolate);                                            \
54  ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f));                 \
55  PropertyCallbackInfo<ReturnValue> info(begin());                             \
56  f(arg1, info);                                                               \
57  return GetReturnValue<ReturnValue>(isolate);                                 \
58}
59
60
61#define WRITE_CALL_2(Function, ReturnValue, Arg1, Arg2)                        \
62v8::Handle<ReturnValue> PropertyCallbackArguments::Call(Function f,            \
63                                                        Arg1 arg1,             \
64                                                        Arg2 arg2) {           \
65  Isolate* isolate = this->isolate();                                          \
66  VMState<EXTERNAL> state(isolate);                                            \
67  ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f));                 \
68  PropertyCallbackInfo<ReturnValue> info(begin());                             \
69  f(arg1, arg2, info);                                                         \
70  return GetReturnValue<ReturnValue>(isolate);                                 \
71}
72
73
74#define WRITE_CALL_2_VOID(Function, ReturnValue, Arg1, Arg2)                   \
75void PropertyCallbackArguments::Call(Function f,                               \
76                                     Arg1 arg1,                                \
77                                     Arg2 arg2) {                              \
78  Isolate* isolate = this->isolate();                                          \
79  VMState<EXTERNAL> state(isolate);                                            \
80  ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f));                 \
81  PropertyCallbackInfo<ReturnValue> info(begin());                             \
82  f(arg1, arg2, info);                                                         \
83}
84
85
86FOR_EACH_CALLBACK_TABLE_MAPPING_0(WRITE_CALL_0)
87FOR_EACH_CALLBACK_TABLE_MAPPING_1(WRITE_CALL_1)
88FOR_EACH_CALLBACK_TABLE_MAPPING_2(WRITE_CALL_2)
89FOR_EACH_CALLBACK_TABLE_MAPPING_2_VOID_RETURN(WRITE_CALL_2_VOID)
90
91#undef WRITE_CALL_0
92#undef WRITE_CALL_1
93#undef WRITE_CALL_2
94#undef WRITE_CALL_2_VOID
95
96
97double ClobberDoubleRegisters(double x1, double x2, double x3, double x4) {
98  // TODO(ulan): This clobbers only subset of registers depending on compiler,
99  // Rewrite this in assembly to really clobber all registers.
100  // GCC for ia32 uses the FPU and does not touch XMM registers.
101  return x1 * 1.01 + x2 * 2.02 + x3 * 3.03 + x4 * 4.04;
102}
103
104
105} }  // namespace v8::internal
106