Add callback converter.

This commit is contained in:
Cheng Zhao 2014-08-10 19:05:25 +08:00
parent 5d6921ff2a
commit 1387d3969e
6 changed files with 453 additions and 1 deletions

291
native_mate/callback.h Normal file
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// This file was GENERATED by command:
// pump.py callback.h.pump
// DO NOT EDIT BY HAND!!!
// Copyright (c) 2014 GitHub, Inc. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "base/bind.h"
#include "base/callback.h"
#include "native_mate/function_template.h"
#include "native_mate/locker.h"
#include "native_mate/scoped_persistent.h"
namespace mate {
namespace internal {
typedef scoped_refptr<RefCountedPersistent<v8::Function> > SafeV8Function;
// Helper to convert type to V8 with storage type (const T& to T).
template<typename T>
v8::Handle<v8::Value> ConvertToV8(v8::Isolate* isolate, T a) {
return Converter<typename base::internal::CallbackParamTraits<T>::StorageType>
::ToV8(isolate, a);
}
// This set of templates invokes a V8::Function by converting the C++ types.
template<typename Sig>
struct V8FunctionInvoker;
template<typename R>
struct V8FunctionInvoker<R()> {
static R Go(v8::Isolate* isolate, SafeV8Function function) {
R ret;
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> val(holder->Call(holder, 0, NULL));
Converter<R>::FromV8(isolate, val, &ret);
return ret;
}
};
template<>
struct V8FunctionInvoker<void()> {
static void Go(v8::Isolate* isolate, SafeV8Function function) {
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
holder->Call(holder, 0, NULL);
}
};
template<typename R, typename P1>
struct V8FunctionInvoker<R(P1)> {
static R Go(v8::Isolate* isolate, SafeV8Function function, P1 a1) {
R ret;
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
};
v8::Handle<v8::Value> val(holder->Call(holder, arraysize(args), args));
Converter<R>::FromV8(isolate, val, &ret);
return ret;
}
};
template<typename P1>
struct V8FunctionInvoker<void(P1)> {
static void Go(v8::Isolate* isolate, SafeV8Function function, P1 a1) {
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
};
holder->Call(holder, arraysize(args), args);
}
};
template<typename R, typename P1, typename P2>
struct V8FunctionInvoker<R(P1, P2)> {
static R Go(v8::Isolate* isolate, SafeV8Function function, P1 a1, P2 a2) {
R ret;
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
ConvertToV8(isolate, a2),
};
v8::Handle<v8::Value> val(holder->Call(holder, arraysize(args), args));
Converter<R>::FromV8(isolate, val, &ret);
return ret;
}
};
template<typename P1, typename P2>
struct V8FunctionInvoker<void(P1, P2)> {
static void Go(v8::Isolate* isolate, SafeV8Function function, P1 a1, P2 a2) {
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
ConvertToV8(isolate, a2),
};
holder->Call(holder, arraysize(args), args);
}
};
template<typename R, typename P1, typename P2, typename P3>
struct V8FunctionInvoker<R(P1, P2, P3)> {
static R Go(v8::Isolate* isolate, SafeV8Function function, P1 a1, P2 a2,
P3 a3) {
R ret;
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
ConvertToV8(isolate, a2),
ConvertToV8(isolate, a3),
};
v8::Handle<v8::Value> val(holder->Call(holder, arraysize(args), args));
Converter<R>::FromV8(isolate, val, &ret);
return ret;
}
};
template<typename P1, typename P2, typename P3>
struct V8FunctionInvoker<void(P1, P2, P3)> {
static void Go(v8::Isolate* isolate, SafeV8Function function, P1 a1, P2 a2,
P3 a3) {
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
ConvertToV8(isolate, a2),
ConvertToV8(isolate, a3),
};
holder->Call(holder, arraysize(args), args);
}
};
template<typename R, typename P1, typename P2, typename P3, typename P4>
struct V8FunctionInvoker<R(P1, P2, P3, P4)> {
static R Go(v8::Isolate* isolate, SafeV8Function function, P1 a1, P2 a2,
P3 a3, P4 a4) {
R ret;
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
ConvertToV8(isolate, a2),
ConvertToV8(isolate, a3),
ConvertToV8(isolate, a4),
};
v8::Handle<v8::Value> val(holder->Call(holder, arraysize(args), args));
Converter<R>::FromV8(isolate, val, &ret);
return ret;
}
};
template<typename P1, typename P2, typename P3, typename P4>
struct V8FunctionInvoker<void(P1, P2, P3, P4)> {
static void Go(v8::Isolate* isolate, SafeV8Function function, P1 a1, P2 a2,
P3 a3, P4 a4) {
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
ConvertToV8(isolate, a2),
ConvertToV8(isolate, a3),
ConvertToV8(isolate, a4),
};
holder->Call(holder, arraysize(args), args);
}
};
template<typename R, typename P1, typename P2, typename P3, typename P4,
typename P5>
struct V8FunctionInvoker<R(P1, P2, P3, P4, P5)> {
static R Go(v8::Isolate* isolate, SafeV8Function function, P1 a1, P2 a2,
P3 a3, P4 a4, P5 a5) {
R ret;
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
ConvertToV8(isolate, a2),
ConvertToV8(isolate, a3),
ConvertToV8(isolate, a4),
ConvertToV8(isolate, a5),
};
v8::Handle<v8::Value> val(holder->Call(holder, arraysize(args), args));
Converter<R>::FromV8(isolate, val, &ret);
return ret;
}
};
template<typename P1, typename P2, typename P3, typename P4, typename P5>
struct V8FunctionInvoker<void(P1, P2, P3, P4, P5)> {
static void Go(v8::Isolate* isolate, SafeV8Function function, P1 a1, P2 a2,
P3 a3, P4 a4, P5 a5) {
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
ConvertToV8(isolate, a2),
ConvertToV8(isolate, a3),
ConvertToV8(isolate, a4),
ConvertToV8(isolate, a5),
};
holder->Call(holder, arraysize(args), args);
}
};
template<typename R, typename P1, typename P2, typename P3, typename P4,
typename P5, typename P6>
struct V8FunctionInvoker<R(P1, P2, P3, P4, P5, P6)> {
static R Go(v8::Isolate* isolate, SafeV8Function function, P1 a1, P2 a2,
P3 a3, P4 a4, P5 a5, P6 a6) {
R ret;
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
ConvertToV8(isolate, a2),
ConvertToV8(isolate, a3),
ConvertToV8(isolate, a4),
ConvertToV8(isolate, a5),
ConvertToV8(isolate, a6),
};
v8::Handle<v8::Value> val(holder->Call(holder, arraysize(args), args));
Converter<R>::FromV8(isolate, val, &ret);
return ret;
}
};
template<typename P1, typename P2, typename P3, typename P4, typename P5,
typename P6>
struct V8FunctionInvoker<void(P1, P2, P3, P4, P5, P6)> {
static void Go(v8::Isolate* isolate, SafeV8Function function, P1 a1, P2 a2,
P3 a3, P4 a4, P5 a5, P6 a6) {
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
v8::Handle<v8::Value> args[] = {
ConvertToV8(isolate, a1),
ConvertToV8(isolate, a2),
ConvertToV8(isolate, a3),
ConvertToV8(isolate, a4),
ConvertToV8(isolate, a5),
ConvertToV8(isolate, a6),
};
holder->Call(holder, arraysize(args), args);
}
};
} // namespace internal
template<typename Sig>
struct Converter<base::Callback<Sig> > {
static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
const base::Callback<Sig>& val) {
return CreateFunctionTemplate(isolate, val)->GetFunction();
}
static bool FromV8(v8::Isolate* isolate,
v8::Handle<v8::Value> val,
base::Callback<Sig>* out) {
if (!val->IsFunction())
return false;
internal::SafeV8Function function(
new RefCountedPersistent<v8::Function>(val));
*out = base::Bind(&internal::V8FunctionInvoker<Sig>::Go, isolate, function);
return true;
}
};
} // namespace mate

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$$ This is a pump file for generating file templates. Pump is a python
$$ script that is part of the Google Test suite of utilities. Description
$$ can be found here:
$$
$$ http://code.google.com/p/googletest/wiki/PumpManual
$$
$var MAX_ARITY = 6
// Copyright (c) 2014 GitHub, Inc. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "base/bind.h"
#include "base/callback.h"
#include "native_mate/function_template.h"
#include "native_mate/locker.h"
#include "native_mate/scoped_persistent.h"
namespace mate {
namespace internal {
typedef scoped_refptr<RefCountedPersistent<v8::Function> > SafeV8Function;
// Helper to convert type to V8 with storage type (const T& to T).
template<typename T>
v8::Handle<v8::Value> ConvertToV8(v8::Isolate* isolate, T a) {
return Converter<typename base::internal::CallbackParamTraits<T>::StorageType>
::ToV8(isolate, a);
}
// This set of templates invokes a V8::Function by converting the C++ types.
template<typename Sig>
struct V8FunctionInvoker;
$range ARITY 0..MAX_ARITY
$for ARITY [[
$range ARG 1..ARITY
template<typename R$for ARG [[, typename P$(ARG)]]>
struct V8FunctionInvoker<R($for ARG , [[P$(ARG)]])> {
static R Go(v8::Isolate* isolate, SafeV8Function function$for ARG [[, P$(ARG) a$(ARG)]]) {
R ret;
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
$if ARITY == 0 [[
v8::Handle<v8::Value> val(holder->Call(holder, 0, NULL));
]] $else [[
v8::Handle<v8::Value> args[] = {
$for ARG [[
ConvertToV8(isolate, a$(ARG)),
]]
};
v8::Handle<v8::Value> val(holder->Call(holder, arraysize(args), args));
]]
Converter<R>::FromV8(isolate, val, &ret);
return ret;
}
};
template<$for ARG , [[typename P$(ARG)]]>
struct V8FunctionInvoker<void($for ARG , [[P$(ARG)]])> {
static void Go(v8::Isolate* isolate, SafeV8Function function$for ARG [[, P$(ARG) a$(ARG)]]) {
Locker locker(isolate);
MATE_HANDLE_SCOPE(isolate);
v8::Handle<v8::Function> holder = function->NewHandle();
$if ARITY == 0 [[
holder->Call(holder, 0, NULL);
]] $else [[
v8::Handle<v8::Value> args[] = {
$for ARG [[
ConvertToV8(isolate, a$(ARG)),
]]
};
holder->Call(holder, arraysize(args), args);
]]
}
};
]]
} // namespace internal
template<typename Sig>
struct Converter<base::Callback<Sig> > {
static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
const base::Callback<Sig>& val) {
return CreateFunctionTemplate(isolate, val)->GetFunction();
}
static bool FromV8(v8::Isolate* isolate,
v8::Handle<v8::Value> val,
base::Callback<Sig>* out) {
if (!val->IsFunction())
return false;
internal::SafeV8Function function(
new RefCountedPersistent<v8::Function>(val));
*out = base::Bind(&internal::V8FunctionInvoker<Sig>::Go, isolate, function);
return true;
}
};
} // namespace mate

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native_mate/locker.cc Normal file
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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE.chromium file.
#include "native_mate/locker.h"
namespace mate {
Locker::Locker(v8::Isolate* isolate) {
if (v8::Locker::IsActive())
locker_.reset(new v8::Locker(isolate));
}
Locker::~Locker() {
}
} // namespace mate

30
native_mate/locker.h Normal file
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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE.chromium file.
#ifndef NATIVE_MATE_LOCKER_H_
#define NATIVE_MATE_LOCKER_H_
#include "base/memory/scoped_ptr.h"
#include "v8/include/v8.h"
namespace mate {
// Only lock when lockers are used in current thread.
class Locker {
public:
explicit Locker(v8::Isolate* isolate);
~Locker();
private:
void* operator new(size_t size);
void operator delete(void*, size_t);
scoped_ptr<v8::Locker> locker_;
DISALLOW_COPY_AND_ASSIGN(Locker);
};
} // namespace mate
#endif // NATIVE_MATE_LOCKER_H_

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@ -56,7 +56,7 @@ class ScopedPersistent {
v8::Handle<T> NewHandle(v8::Isolate* isolate) const {
if (handle_.IsEmpty())
return v8::Local<T>();
return v8::Local<T>::New(isolate, handle_);
return MATE_PERSISTENT_TO_LOCAL(T, isolate, handle_);
}
template<typename P, typename C>

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@ -3,6 +3,7 @@
'native_mate_files': [
'native_mate/arguments.cc',
'native_mate/arguments.h',
'native_mate/callback.h',
'native_mate/compat.h',
'native_mate/constructor.h',
'native_mate/converter.cc',
@ -12,6 +13,8 @@
'native_mate/function_template.cc',
'native_mate/function_template.h',
'native_mate/handle.h',
'native_mate/locker.cc',
'native_mate/locker.h',
'native_mate/object_template_builder.cc',
'native_mate/object_template_builder.h',
'native_mate/scoped_persistent.h',