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// Copyright 2013 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 "src/arguments.h"
#include "src/api.h"
#include "src/vm-state-inl.h"
namespace v8 {
namespace internal {
template <typename T>
template <typename V>
v8::Local<V> CustomArguments<T>::GetReturnValue(Isolate* isolate) {
// Check the ReturnValue.
Object** handle = &this->begin()[kReturnValueOffset];
// Nothing was set, return empty handle as per previous behaviour.
if ((*handle)->IsTheHole()) return v8::Local<V>();
return Utils::Convert<Object, V>(Handle<Object>(handle));
}
v8::Local<v8::Value> FunctionCallbackArguments::Call(FunctionCallback f) {
Isolate* isolate = this->isolate();
VMState<EXTERNAL> state(isolate);
ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f));
FunctionCallbackInfo<v8::Value> info(begin(),
argv_,
argc_,
is_construct_call_);
f(info);
return GetReturnValue<v8::Value>(isolate);
}
#define WRITE_CALL_0(Function, ReturnValue) \
v8::Local<ReturnValue> PropertyCallbackArguments::Call(Function f) { \
Isolate* isolate = this->isolate(); \
VMState<EXTERNAL> state(isolate); \
ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f)); \
PropertyCallbackInfo<ReturnValue> info(begin()); \
f(info); \
return GetReturnValue<ReturnValue>(isolate); \
}
#define WRITE_CALL_1(Function, ReturnValue, Arg1) \
v8::Local<ReturnValue> PropertyCallbackArguments::Call(Function f, \
Arg1 arg1) { \
Isolate* isolate = this->isolate(); \
VMState<EXTERNAL> state(isolate); \
ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f)); \
PropertyCallbackInfo<ReturnValue> info(begin()); \
f(arg1, info); \
return GetReturnValue<ReturnValue>(isolate); \
}
#define WRITE_CALL_2(Function, ReturnValue, Arg1, Arg2) \
v8::Local<ReturnValue> PropertyCallbackArguments::Call( \
Function f, Arg1 arg1, Arg2 arg2) { \
Isolate* isolate = this->isolate(); \
VMState<EXTERNAL> state(isolate); \
ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f)); \
PropertyCallbackInfo<ReturnValue> info(begin()); \
f(arg1, arg2, info); \
return GetReturnValue<ReturnValue>(isolate); \
}
#define WRITE_CALL_2_VOID(Function, ReturnValue, Arg1, Arg2) \
void PropertyCallbackArguments::Call(Function f, Arg1 arg1, Arg2 arg2) { \
Isolate* isolate = this->isolate(); \
VMState<EXTERNAL> state(isolate); \
ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f)); \
PropertyCallbackInfo<ReturnValue> info(begin()); \
f(arg1, arg2, info); \
}
FOR_EACH_CALLBACK_TABLE_MAPPING_0(WRITE_CALL_0)
FOR_EACH_CALLBACK_TABLE_MAPPING_1(WRITE_CALL_1)
FOR_EACH_CALLBACK_TABLE_MAPPING_2(WRITE_CALL_2)
FOR_EACH_CALLBACK_TABLE_MAPPING_2_VOID_RETURN(WRITE_CALL_2_VOID)
#undef WRITE_CALL_0
#undef WRITE_CALL_1
#undef WRITE_CALL_2
#undef WRITE_CALL_2_VOID
double ClobberDoubleRegisters(double x1, double x2, double x3, double x4) {
// TODO(ulan): This clobbers only subset of registers depending on compiler,
// Rewrite this in assembly to really clobber all registers.
// GCC for ia32 uses the FPU and does not touch XMM registers.
return x1 * 1.01 + x2 * 2.02 + x3 * 3.03 + x4 * 4.04;
}
} // namespace internal
} // namespace v8
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