Use C++11 version of CreateFunctionTemplate
This commit is contained in:
Cheng Zhao
parent
41cd6d13c9
commit
656e403f01
2 changed files with 122 additions and 734 deletions
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@ -1,7 +1,3 @@
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// This file was GENERATED by command:
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// pump.py function_template.h.pump
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// DO NOT EDIT BY HAND!!!
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// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE.chromium file.
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@ -17,8 +13,6 @@
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namespace mate {
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class PerIsolateData;
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enum CreateFunctionTemplateFlags {
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HolderIsFirstArgument = 1 << 0,
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SafeAfterDestroyed = 1 << 1,
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@ -96,221 +90,6 @@ class CallbackHolder : public CallbackHolderBase {
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DISALLOW_COPY_AND_ASSIGN(CallbackHolder);
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};
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// This set of templates invokes a base::Callback, converts the return type to a
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// JavaScript value, and returns that value to script via the provided
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// mate::Arguments object.
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//
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// In C++, you can declare the function foo(void), but you can't pass a void
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// expression to foo. As a result, we must specialize the case of Callbacks that
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// have the void return type.
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template<typename R, typename P1 = void, typename P2 = void,
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typename P3 = void, typename P4 = void, typename P5 = void,
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typename P6 = void, typename P7 = void>
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struct Invoker {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<R(P1, P2, P3, P4, P5, P6, P7)>& callback,
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const P1& a1,
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const P2& a2,
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const P3& a3,
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const P4& a4,
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const P5& a5,
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const P6& a6,
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const P7& a7) {
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MATE_METHOD_RETURN(callback.Run(a1, a2, a3, a4, a5, a6, a7));
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}
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};
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template<typename P1, typename P2, typename P3, typename P4, typename P5,
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typename P6, typename P7>
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struct Invoker<void, P1, P2, P3, P4, P5, P6, P7> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<void(P1, P2, P3, P4, P5, P6, P7)>& callback,
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const P1& a1,
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const P2& a2,
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const P3& a3,
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const P4& a4,
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const P5& a5,
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const P6& a6,
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const P7& a7) {
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callback.Run(a1, a2, a3, a4, a5, a6, a7);
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MATE_METHOD_RETURN_UNDEFINED();
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}
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};
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template<typename R, typename P1, typename P2, typename P3, typename P4,
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typename P5, typename P6>
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struct Invoker<R, P1, P2, P3, P4, P5, P6, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<R(P1, P2, P3, P4, P5, P6)>& callback,
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const P1& a1,
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const P2& a2,
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const P3& a3,
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const P4& a4,
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const P5& a5,
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const P6& a6) {
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MATE_METHOD_RETURN(callback.Run(a1, a2, a3, a4, a5, a6));
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}
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};
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template<typename P1, typename P2, typename P3, typename P4, typename P5,
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typename P6>
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struct Invoker<void, P1, P2, P3, P4, P5, P6, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<void(P1, P2, P3, P4, P5, P6)>& callback,
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const P1& a1,
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const P2& a2,
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const P3& a3,
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const P4& a4,
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const P5& a5,
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const P6& a6) {
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callback.Run(a1, a2, a3, a4, a5, a6);
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MATE_METHOD_RETURN_UNDEFINED();
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}
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};
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template<typename R, typename P1, typename P2, typename P3, typename P4,
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typename P5>
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struct Invoker<R, P1, P2, P3, P4, P5, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<R(P1, P2, P3, P4, P5)>& callback,
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const P1& a1,
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const P2& a2,
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const P3& a3,
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const P4& a4,
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const P5& a5) {
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MATE_METHOD_RETURN(callback.Run(a1, a2, a3, a4, a5));
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}
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};
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template<typename P1, typename P2, typename P3, typename P4, typename P5>
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struct Invoker<void, P1, P2, P3, P4, P5, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<void(P1, P2, P3, P4, P5)>& callback,
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const P1& a1,
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const P2& a2,
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const P3& a3,
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const P4& a4,
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const P5& a5) {
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callback.Run(a1, a2, a3, a4, a5);
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MATE_METHOD_RETURN_UNDEFINED();
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}
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};
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template<typename R, typename P1, typename P2, typename P3, typename P4>
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struct Invoker<R, P1, P2, P3, P4, void, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<R(P1, P2, P3, P4)>& callback,
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const P1& a1,
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const P2& a2,
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const P3& a3,
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const P4& a4) {
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MATE_METHOD_RETURN(callback.Run(a1, a2, a3, a4));
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}
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};
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template<typename P1, typename P2, typename P3, typename P4>
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struct Invoker<void, P1, P2, P3, P4, void, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<void(P1, P2, P3, P4)>& callback,
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const P1& a1,
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const P2& a2,
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const P3& a3,
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const P4& a4) {
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callback.Run(a1, a2, a3, a4);
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MATE_METHOD_RETURN_UNDEFINED();
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}
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};
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template<typename R, typename P1, typename P2, typename P3>
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struct Invoker<R, P1, P2, P3, void, void, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<R(P1, P2, P3)>& callback,
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const P1& a1,
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const P2& a2,
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const P3& a3) {
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MATE_METHOD_RETURN(callback.Run(a1, a2, a3));
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}
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};
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template<typename P1, typename P2, typename P3>
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struct Invoker<void, P1, P2, P3, void, void, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<void(P1, P2, P3)>& callback,
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const P1& a1,
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const P2& a2,
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const P3& a3) {
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callback.Run(a1, a2, a3);
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MATE_METHOD_RETURN_UNDEFINED();
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}
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};
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template<typename R, typename P1, typename P2>
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struct Invoker<R, P1, P2, void, void, void, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<R(P1, P2)>& callback,
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const P1& a1,
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const P2& a2) {
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MATE_METHOD_RETURN(callback.Run(a1, a2));
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}
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};
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template<typename P1, typename P2>
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struct Invoker<void, P1, P2, void, void, void, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<void(P1, P2)>& callback,
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const P1& a1,
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const P2& a2) {
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callback.Run(a1, a2);
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MATE_METHOD_RETURN_UNDEFINED();
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}
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};
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template<typename R, typename P1>
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struct Invoker<R, P1, void, void, void, void, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<R(P1)>& callback,
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const P1& a1) {
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MATE_METHOD_RETURN(callback.Run(a1));
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}
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};
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template<typename P1>
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struct Invoker<void, P1, void, void, void, void, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<void(P1)>& callback,
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const P1& a1) {
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callback.Run(a1);
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MATE_METHOD_RETURN_UNDEFINED();
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}
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};
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template<typename R>
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struct Invoker<R, void, void, void, void, void, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<R()>& callback) {
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MATE_METHOD_RETURN(callback.Run());
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}
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};
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template<>
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struct Invoker<void, void, void, void, void, void, void, void> {
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inline static MATE_METHOD_RETURN_TYPE Go(
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Arguments& args,
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const base::Callback<void()>& callback) {
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callback.Run();
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MATE_METHOD_RETURN_UNDEFINED();
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}
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};
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template<typename T>
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bool GetNextArgument(Arguments* args, int create_flags, bool is_first,
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T* result) {
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@ -341,278 +120,120 @@ inline bool GetNextArgument(Arguments* args, int create_flags,
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return true;
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}
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// Classes for generating and storing an argument pack of integer indices
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// (based on well-known "indices trick", see: http://goo.gl/bKKojn):
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template <size_t... indices>
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struct IndicesHolder {};
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template <size_t requested_index, size_t... indices>
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struct IndicesGenerator {
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using type = typename IndicesGenerator<requested_index - 1,
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requested_index - 1,
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indices...>::type;
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};
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template <size_t... indices>
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struct IndicesGenerator<0, indices...> {
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using type = IndicesHolder<indices...>;
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};
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// Class template for extracting and storing single argument for callback
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// at position |index|.
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template <size_t index, typename ArgType>
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struct ArgumentHolder {
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using ArgLocalType = typename CallbackParamTraits<ArgType>::LocalType;
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ArgLocalType value;
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bool ok;
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ArgumentHolder(Arguments* args, int create_flags)
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: ok(false) {
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if (index == 0 &&
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(create_flags & HolderIsFirstArgument) &&
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!(create_flags & SafeAfterDestroyed) &&
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DestroyedChecker<ArgLocalType>::IsDestroyed(args)) {
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args->ThrowError("Object has been destroyed");
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return;
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}
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ok = GetNextArgument(args, create_flags, index == 0, &value);
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if (!ok) {
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// Ideally we would include the expected c++ type in the error
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// message which we can access via typeid(ArgType).name()
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// however we compile with no-rtti, which disables typeid.
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args->ThrowError();
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}
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}
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};
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// Class template for converting arguments from JavaScript to C++ and running
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// the callback with them.
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template <typename IndicesType, typename... ArgTypes>
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class Invoker {};
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template <size_t... indices, typename... ArgTypes>
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class Invoker<IndicesHolder<indices...>, ArgTypes...>
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: public ArgumentHolder<indices, ArgTypes>... {
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public:
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// Invoker<> inherits from ArgumentHolder<> for each argument.
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// C++ has always been strict about the class initialization order,
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// so it is guaranteed ArgumentHolders will be initialized (and thus, will
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// extract arguments from Arguments) in the right order.
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Invoker(Arguments* args, int create_flags)
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: ArgumentHolder<indices, ArgTypes>(args, create_flags)..., args_(args) {
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// GCC thinks that create_flags is going unused, even though the
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// expansion above clearly makes use of it. Per jyasskin@, casting
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// to void is the commonly accepted way to convince the compiler
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// that you're actually using a parameter/varible.
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(void)create_flags;
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}
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bool IsOK() {
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return And(ArgumentHolder<indices, ArgTypes>::ok...);
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}
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template <typename ReturnType>
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void DispatchToCallback(base::Callback<ReturnType(ArgTypes...)> callback) {
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args_->Return(callback.Run(ArgumentHolder<indices, ArgTypes>::value...));
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}
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// In C++, you can declare the function foo(void), but you can't pass a void
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// expression to foo. As a result, we must specialize the case of Callbacks
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// that have the void return type.
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void DispatchToCallback(base::Callback<void(ArgTypes...)> callback) {
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callback.Run(ArgumentHolder<indices, ArgTypes>::value...);
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}
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private:
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static bool And() { return true; }
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template <typename... T>
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static bool And(bool arg1, T... args) {
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return arg1 && And(args...);
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}
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Arguments* args_;
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};
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// DispatchToCallback converts all the JavaScript arguments to C++ types and
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// invokes the base::Callback.
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template<typename Sig>
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struct Dispatcher {
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};
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template <typename Sig>
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struct Dispatcher {};
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template<typename R>
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struct Dispatcher<R()> {
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static MATE_METHOD(DispatchToCallback) {
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template <typename ReturnType, typename... ArgTypes>
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struct Dispatcher<ReturnType(ArgTypes...)> {
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static void DispatchToCallback(
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const v8::FunctionCallbackInfo<v8::Value>& info) {
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Arguments args(info);
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v8::Local<v8::External> v8_holder;
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CHECK(args.GetData(&v8_holder));
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CallbackHolderBase* holder_base = reinterpret_cast<CallbackHolderBase*>(
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v8_holder->Value());
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typedef CallbackHolder<R()> HolderT;
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typedef CallbackHolder<ReturnType(ArgTypes...)> HolderT;
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HolderT* holder = static_cast<HolderT*>(holder_base);
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return Invoker<R>::Go(args, holder->callback);
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}
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};
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template<typename R, typename P1>
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struct Dispatcher<R(P1)> {
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static MATE_METHOD(DispatchToCallback) {
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Arguments args(info);
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v8::Local<v8::External> v8_holder;
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CHECK(args.GetData(&v8_holder));
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CallbackHolderBase* holder_base = reinterpret_cast<CallbackHolderBase*>(
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v8_holder->Value());
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typedef CallbackHolder<R(P1)> HolderT;
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HolderT* holder = static_cast<HolderT*>(holder_base);
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typename CallbackParamTraits<P1>::LocalType a1;
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if ((holder->flags & HolderIsFirstArgument) &&
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!(holder->flags & SafeAfterDestroyed) &&
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DestroyedChecker<typename
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CallbackParamTraits<P1>::LocalType>::IsDestroyed(&args)) {
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args.ThrowError("Object has been destroyed");
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MATE_METHOD_RETURN_UNDEFINED();
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}
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if (!GetNextArgument(&args, holder->flags, true, &a1)) {
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args.ThrowError();
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MATE_METHOD_RETURN_UNDEFINED();
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}
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return Invoker<R, P1>::Go(args, holder->callback, a1);
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}
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};
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template<typename R, typename P1, typename P2>
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struct Dispatcher<R(P1, P2)> {
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static MATE_METHOD(DispatchToCallback) {
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Arguments args(info);
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v8::Local<v8::External> v8_holder;
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CHECK(args.GetData(&v8_holder));
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CallbackHolderBase* holder_base = reinterpret_cast<CallbackHolderBase*>(
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v8_holder->Value());
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typedef CallbackHolder<R(P1, P2)> HolderT;
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HolderT* holder = static_cast<HolderT*>(holder_base);
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typename CallbackParamTraits<P1>::LocalType a1;
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typename CallbackParamTraits<P2>::LocalType a2;
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if ((holder->flags & HolderIsFirstArgument) &&
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!(holder->flags & SafeAfterDestroyed) &&
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DestroyedChecker<typename
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CallbackParamTraits<P1>::LocalType>::IsDestroyed(&args)) {
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args.ThrowError("Object has been destroyed");
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MATE_METHOD_RETURN_UNDEFINED();
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}
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if (!GetNextArgument(&args, holder->flags, true, &a1) ||
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!GetNextArgument(&args, holder->flags, false, &a2)) {
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args.ThrowError();
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MATE_METHOD_RETURN_UNDEFINED();
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}
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return Invoker<R, P1, P2>::Go(args, holder->callback, a1, a2);
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}
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};
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template<typename R, typename P1, typename P2, typename P3>
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struct Dispatcher<R(P1, P2, P3)> {
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static MATE_METHOD(DispatchToCallback) {
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Arguments args(info);
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v8::Local<v8::External> v8_holder;
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CHECK(args.GetData(&v8_holder));
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CallbackHolderBase* holder_base = reinterpret_cast<CallbackHolderBase*>(
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v8_holder->Value());
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typedef CallbackHolder<R(P1, P2, P3)> HolderT;
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HolderT* holder = static_cast<HolderT*>(holder_base);
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typename CallbackParamTraits<P1>::LocalType a1;
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typename CallbackParamTraits<P2>::LocalType a2;
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typename CallbackParamTraits<P3>::LocalType a3;
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if ((holder->flags & HolderIsFirstArgument) &&
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!(holder->flags & SafeAfterDestroyed) &&
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DestroyedChecker<typename
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CallbackParamTraits<P1>::LocalType>::IsDestroyed(&args)) {
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args.ThrowError("Object has been destroyed");
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MATE_METHOD_RETURN_UNDEFINED();
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}
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||||
if (!GetNextArgument(&args, holder->flags, true, &a1) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a2) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a3)) {
|
||||
args.ThrowError();
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
|
||||
return Invoker<R, P1, P2, P3>::Go(args, holder->callback, a1, a2, a3);
|
||||
}
|
||||
};
|
||||
|
||||
template<typename R, typename P1, typename P2, typename P3, typename P4>
|
||||
struct Dispatcher<R(P1, P2, P3, P4)> {
|
||||
static MATE_METHOD(DispatchToCallback) {
|
||||
Arguments args(info);
|
||||
v8::Local<v8::External> v8_holder;
|
||||
CHECK(args.GetData(&v8_holder));
|
||||
CallbackHolderBase* holder_base = reinterpret_cast<CallbackHolderBase*>(
|
||||
v8_holder->Value());
|
||||
|
||||
typedef CallbackHolder<R(P1, P2, P3, P4)> HolderT;
|
||||
HolderT* holder = static_cast<HolderT*>(holder_base);
|
||||
|
||||
typename CallbackParamTraits<P1>::LocalType a1;
|
||||
typename CallbackParamTraits<P2>::LocalType a2;
|
||||
typename CallbackParamTraits<P3>::LocalType a3;
|
||||
typename CallbackParamTraits<P4>::LocalType a4;
|
||||
if ((holder->flags & HolderIsFirstArgument) &&
|
||||
!(holder->flags & SafeAfterDestroyed) &&
|
||||
DestroyedChecker<typename
|
||||
CallbackParamTraits<P1>::LocalType>::IsDestroyed(&args)) {
|
||||
args.ThrowError("Object has been destroyed");
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
if (!GetNextArgument(&args, holder->flags, true, &a1) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a2) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a3) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a4)) {
|
||||
args.ThrowError();
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
|
||||
return Invoker<R, P1, P2, P3, P4>::Go(args, holder->callback, a1, a2, a3,
|
||||
a4);
|
||||
}
|
||||
};
|
||||
|
||||
template<typename R, typename P1, typename P2, typename P3, typename P4,
|
||||
typename P5>
|
||||
struct Dispatcher<R(P1, P2, P3, P4, P5)> {
|
||||
static MATE_METHOD(DispatchToCallback) {
|
||||
Arguments args(info);
|
||||
v8::Local<v8::External> v8_holder;
|
||||
CHECK(args.GetData(&v8_holder));
|
||||
CallbackHolderBase* holder_base = reinterpret_cast<CallbackHolderBase*>(
|
||||
v8_holder->Value());
|
||||
|
||||
typedef CallbackHolder<R(P1, P2, P3, P4, P5)> HolderT;
|
||||
HolderT* holder = static_cast<HolderT*>(holder_base);
|
||||
|
||||
typename CallbackParamTraits<P1>::LocalType a1;
|
||||
typename CallbackParamTraits<P2>::LocalType a2;
|
||||
typename CallbackParamTraits<P3>::LocalType a3;
|
||||
typename CallbackParamTraits<P4>::LocalType a4;
|
||||
typename CallbackParamTraits<P5>::LocalType a5;
|
||||
if ((holder->flags & HolderIsFirstArgument) &&
|
||||
!(holder->flags & SafeAfterDestroyed) &&
|
||||
DestroyedChecker<typename
|
||||
CallbackParamTraits<P1>::LocalType>::IsDestroyed(&args)) {
|
||||
args.ThrowError("Object has been destroyed");
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
if (!GetNextArgument(&args, holder->flags, true, &a1) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a2) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a3) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a4) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a5)) {
|
||||
args.ThrowError();
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
|
||||
return Invoker<R, P1, P2, P3, P4, P5>::Go(args, holder->callback, a1, a2,
|
||||
a3, a4, a5);
|
||||
}
|
||||
};
|
||||
|
||||
template<typename R, typename P1, typename P2, typename P3, typename P4,
|
||||
typename P5, typename P6>
|
||||
struct Dispatcher<R(P1, P2, P3, P4, P5, P6)> {
|
||||
static MATE_METHOD(DispatchToCallback) {
|
||||
Arguments args(info);
|
||||
v8::Local<v8::External> v8_holder;
|
||||
CHECK(args.GetData(&v8_holder));
|
||||
CallbackHolderBase* holder_base = reinterpret_cast<CallbackHolderBase*>(
|
||||
v8_holder->Value());
|
||||
|
||||
typedef CallbackHolder<R(P1, P2, P3, P4, P5, P6)> HolderT;
|
||||
HolderT* holder = static_cast<HolderT*>(holder_base);
|
||||
|
||||
typename CallbackParamTraits<P1>::LocalType a1;
|
||||
typename CallbackParamTraits<P2>::LocalType a2;
|
||||
typename CallbackParamTraits<P3>::LocalType a3;
|
||||
typename CallbackParamTraits<P4>::LocalType a4;
|
||||
typename CallbackParamTraits<P5>::LocalType a5;
|
||||
typename CallbackParamTraits<P6>::LocalType a6;
|
||||
if ((holder->flags & HolderIsFirstArgument) &&
|
||||
!(holder->flags & SafeAfterDestroyed) &&
|
||||
DestroyedChecker<typename
|
||||
CallbackParamTraits<P1>::LocalType>::IsDestroyed(&args)) {
|
||||
args.ThrowError("Object has been destroyed");
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
if (!GetNextArgument(&args, holder->flags, true, &a1) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a2) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a3) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a4) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a5) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a6)) {
|
||||
args.ThrowError();
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
|
||||
return Invoker<R, P1, P2, P3, P4, P5, P6>::Go(args, holder->callback, a1,
|
||||
a2, a3, a4, a5, a6);
|
||||
}
|
||||
};
|
||||
|
||||
template<typename R, typename P1, typename P2, typename P3, typename P4,
|
||||
typename P5, typename P6, typename P7>
|
||||
struct Dispatcher<R(P1, P2, P3, P4, P5, P6, P7)> {
|
||||
static MATE_METHOD(DispatchToCallback) {
|
||||
Arguments args(info);
|
||||
v8::Local<v8::External> v8_holder;
|
||||
CHECK(args.GetData(&v8_holder));
|
||||
CallbackHolderBase* holder_base = reinterpret_cast<CallbackHolderBase*>(
|
||||
v8_holder->Value());
|
||||
|
||||
typedef CallbackHolder<R(P1, P2, P3, P4, P5, P6, P7)> HolderT;
|
||||
HolderT* holder = static_cast<HolderT*>(holder_base);
|
||||
|
||||
typename CallbackParamTraits<P1>::LocalType a1;
|
||||
typename CallbackParamTraits<P2>::LocalType a2;
|
||||
typename CallbackParamTraits<P3>::LocalType a3;
|
||||
typename CallbackParamTraits<P4>::LocalType a4;
|
||||
typename CallbackParamTraits<P5>::LocalType a5;
|
||||
typename CallbackParamTraits<P6>::LocalType a6;
|
||||
typename CallbackParamTraits<P7>::LocalType a7;
|
||||
if ((holder->flags & HolderIsFirstArgument) &&
|
||||
!(holder->flags & SafeAfterDestroyed) &&
|
||||
DestroyedChecker<typename
|
||||
CallbackParamTraits<P1>::LocalType>::IsDestroyed(&args)) {
|
||||
args.ThrowError("Object has been destroyed");
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
if (!GetNextArgument(&args, holder->flags, true, &a1) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a2) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a3) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a4) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a5) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a6) ||
|
||||
!GetNextArgument(&args, holder->flags, false, &a7)) {
|
||||
args.ThrowError();
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
|
||||
return Invoker<R, P1, P2, P3, P4, P5, P6, P7>::Go(args, holder->callback,
|
||||
a1, a2, a3, a4, a5, a6, a7);
|
||||
using Indices = typename IndicesGenerator<sizeof...(ArgTypes)>::type;
|
||||
Invoker<Indices, ArgTypes...> invoker(&args, holder->flags);
|
||||
if (invoker.IsOK())
|
||||
invoker.DispatchToCallback(holder->callback);
|
||||
}
|
||||
};
|
||||
|
||||
|
|
@ -621,8 +242,13 @@ struct Dispatcher<R(P1, P2, P3, P4, P5, P6, P7)> {
|
|||
|
||||
// CreateFunctionTemplate creates a v8::FunctionTemplate that will create
|
||||
// JavaScript functions that execute a provided C++ function or base::Callback.
|
||||
// JavaScript arguments are automatically converted via mate::Converter, as is
|
||||
// JavaScript arguments are automatically converted via gin::Converter, as is
|
||||
// the return value of the C++ function, if any.
|
||||
//
|
||||
// NOTE: V8 caches FunctionTemplates for a lifetime of a web page for its own
|
||||
// internal reasons, thus it is generally a good idea to cache the template
|
||||
// returned by this function. Otherwise, repeated method invocations from JS
|
||||
// will create substantial memory leaks. See http://crbug.com/463487.
|
||||
template<typename Sig>
|
||||
v8::Local<v8::FunctionTemplate> CreateFunctionTemplate(
|
||||
v8::Isolate* isolate, const base::Callback<Sig> callback,
|
||||
|
|
@ -631,14 +257,26 @@ v8::Local<v8::FunctionTemplate> CreateFunctionTemplate(
|
|||
HolderT* holder = new HolderT(isolate, callback, callback_flags);
|
||||
|
||||
return v8::FunctionTemplate::New(
|
||||
#if NODE_VERSION_AT_LEAST(0, 11, 11)
|
||||
isolate,
|
||||
#endif
|
||||
&internal::Dispatcher<Sig>::DispatchToCallback,
|
||||
ConvertToV8<v8::Local<v8::External> >(isolate,
|
||||
holder->GetHandle(isolate)));
|
||||
}
|
||||
|
||||
// CreateFunctionHandler installs a CallAsFunction handler on the given
|
||||
// object template that forwards to a provided C++ function or base::Callback.
|
||||
template<typename Sig>
|
||||
void CreateFunctionHandler(v8::Isolate* isolate,
|
||||
v8::Local<v8::ObjectTemplate> tmpl,
|
||||
const base::Callback<Sig> callback,
|
||||
int callback_flags = 0) {
|
||||
typedef internal::CallbackHolder<Sig> HolderT;
|
||||
HolderT* holder = new HolderT(isolate, callback, callback_flags);
|
||||
tmpl->SetCallAsFunctionHandler(&internal::Dispatcher<Sig>::DispatchToCallback,
|
||||
ConvertToV8<v8::Local<v8::External> >(
|
||||
isolate, holder->GetHandle(isolate)));
|
||||
}
|
||||
|
||||
} // namespace mate
|
||||
|
||||
#endif // NATIVE_MATE_FUNCTION_TEMPLATE_H_
|
||||
|
|
|
|||
|
|
@ -1,250 +0,0 @@
|
|||
$$ This is a pump file for generating file templates. Pump is a python
|
||||
$$ 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 = 7
|
||||
// Copyright 2013 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_FUNCTION_TEMPLATE_H_
|
||||
#define NATIVE_MATE_FUNCTION_TEMPLATE_H_
|
||||
|
||||
#include "base/callback.h"
|
||||
#include "base/logging.h"
|
||||
#include "native_mate/arguments.h"
|
||||
#include "native_mate/wrappable.h"
|
||||
#include "v8/include/v8.h"
|
||||
|
||||
namespace mate {
|
||||
|
||||
class PerIsolateData;
|
||||
|
||||
enum CreateFunctionTemplateFlags {
|
||||
HolderIsFirstArgument = 1 << 0,
|
||||
SafeAfterDestroyed = 1 << 1,
|
||||
};
|
||||
|
||||
namespace internal {
|
||||
|
||||
// Check if the class has been destroyed.
|
||||
template<typename T, typename Enable = void>
|
||||
struct DestroyedChecker {
|
||||
static bool IsDestroyed(Arguments* args) {
|
||||
return false;
|
||||
}
|
||||
};
|
||||
template<typename T>
|
||||
struct DestroyedChecker<T*, typename enable_if<
|
||||
is_convertible<T*, Wrappable*>::value>::type> {
|
||||
static bool IsDestroyed(Arguments* args) {
|
||||
T* object;
|
||||
if (args->GetHolder(&object))
|
||||
return static_cast<Wrappable*>(object)->IsDestroyed();
|
||||
else
|
||||
return false;
|
||||
}
|
||||
};
|
||||
|
||||
template<typename T>
|
||||
struct CallbackParamTraits {
|
||||
typedef T LocalType;
|
||||
};
|
||||
template<typename T>
|
||||
struct CallbackParamTraits<const T&> {
|
||||
typedef T LocalType;
|
||||
};
|
||||
template<typename T>
|
||||
struct CallbackParamTraits<const T*> {
|
||||
typedef T* LocalType;
|
||||
};
|
||||
|
||||
|
||||
// CallbackHolder and CallbackHolderBase are used to pass a base::Callback from
|
||||
// CreateFunctionTemplate through v8 (via v8::FunctionTemplate) to
|
||||
// DispatchToCallback, where it is invoked.
|
||||
|
||||
// This simple base class is used so that we can share a single object template
|
||||
// among every CallbackHolder instance.
|
||||
class CallbackHolderBase {
|
||||
public:
|
||||
v8::Local<v8::External> GetHandle(v8::Isolate* isolate);
|
||||
|
||||
protected:
|
||||
explicit CallbackHolderBase(v8::Isolate* isolate);
|
||||
virtual ~CallbackHolderBase();
|
||||
|
||||
private:
|
||||
static MATE_WEAK_CALLBACK(WeakCallback, v8::External, CallbackHolderBase);
|
||||
|
||||
v8::UniquePersistent<v8::External> v8_ref_;
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(CallbackHolderBase);
|
||||
};
|
||||
|
||||
template<typename Sig>
|
||||
class CallbackHolder : public CallbackHolderBase {
|
||||
public:
|
||||
CallbackHolder(v8::Isolate* isolate,
|
||||
const base::Callback<Sig>& callback,
|
||||
int flags)
|
||||
: CallbackHolderBase(isolate), callback(callback), flags(flags) {}
|
||||
base::Callback<Sig> callback;
|
||||
int flags;
|
||||
private:
|
||||
virtual ~CallbackHolder() {}
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(CallbackHolder);
|
||||
};
|
||||
|
||||
|
||||
// This set of templates invokes a base::Callback, converts the return type to a
|
||||
// JavaScript value, and returns that value to script via the provided
|
||||
// mate::Arguments object.
|
||||
//
|
||||
// In C++, you can declare the function foo(void), but you can't pass a void
|
||||
// expression to foo. As a result, we must specialize the case of Callbacks that
|
||||
// have the void return type.
|
||||
|
||||
$range ARITY 0..MAX_ARITY
|
||||
$for ARITY [[
|
||||
$var INV_ARITY = MAX_ARITY - ARITY
|
||||
$range ARG 1..INV_ARITY
|
||||
$range VOID INV_ARITY+1..MAX_ARITY
|
||||
|
||||
$if ARITY == 0 [[
|
||||
template<typename R$for ARG [[, typename P$(ARG) = void]]>
|
||||
struct Invoker {
|
||||
]] $else [[
|
||||
template<typename R$for ARG [[, typename P$(ARG)]]>
|
||||
struct Invoker<R$for ARG [[, P$(ARG)]]$for VOID [[, void]]> {
|
||||
]]
|
||||
|
||||
inline static MATE_METHOD_RETURN_TYPE Go(
|
||||
Arguments& args,
|
||||
const base::Callback<R($for ARG , [[P$(ARG)]])>& callback$for ARG [[,
|
||||
const P$(ARG)& a$(ARG)]]) {
|
||||
MATE_METHOD_RETURN(callback.Run($for ARG, [[a$(ARG)]]));
|
||||
}
|
||||
};
|
||||
template<$for ARG , [[typename P$(ARG)]]>
|
||||
struct Invoker<void$for ARG [[, P$(ARG)]]$for VOID [[, void]]> {
|
||||
inline static MATE_METHOD_RETURN_TYPE Go(
|
||||
Arguments& args,
|
||||
const base::Callback<void($for ARG , [[P$(ARG)]])>& callback$for ARG [[,
|
||||
const P$(ARG)& a$(ARG)]]) {
|
||||
callback.Run($for ARG, [[a$(ARG)]]);
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
]]
|
||||
|
||||
template<typename T>
|
||||
bool GetNextArgument(Arguments* args, int create_flags, bool is_first,
|
||||
T* result) {
|
||||
if (is_first && (create_flags & HolderIsFirstArgument) != 0) {
|
||||
return args->GetHolder(result);
|
||||
} else {
|
||||
return args->GetNext(result);
|
||||
}
|
||||
}
|
||||
|
||||
// For advanced use cases, we allow callers to request the unparsed Arguments
|
||||
// object and poke around in it directly.
|
||||
inline bool GetNextArgument(Arguments* args, int create_flags, bool is_first,
|
||||
Arguments* result) {
|
||||
*result = *args;
|
||||
return true;
|
||||
}
|
||||
inline bool GetNextArgument(Arguments* args, int create_flags, bool is_first,
|
||||
Arguments** result) {
|
||||
*result = args;
|
||||
return true;
|
||||
}
|
||||
|
||||
// It's common for clients to just need the isolate, so we make that easy.
|
||||
inline bool GetNextArgument(Arguments* args, int create_flags,
|
||||
bool is_first, v8::Isolate** result) {
|
||||
*result = args->isolate();
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
// DispatchToCallback converts all the JavaScript arguments to C++ types and
|
||||
// invokes the base::Callback.
|
||||
template<typename Sig>
|
||||
struct Dispatcher {
|
||||
};
|
||||
|
||||
$range ARITY 0..MAX_ARITY
|
||||
$for ARITY [[
|
||||
$range ARG 1..ARITY
|
||||
|
||||
template<typename R$for ARG [[, typename P$(ARG)]]>
|
||||
struct Dispatcher<R($for ARG , [[P$(ARG)]])> {
|
||||
static MATE_METHOD(DispatchToCallback) {
|
||||
Arguments args(info);
|
||||
v8::Local<v8::External> v8_holder;
|
||||
CHECK(args.GetData(&v8_holder));
|
||||
CallbackHolderBase* holder_base = reinterpret_cast<CallbackHolderBase*>(
|
||||
v8_holder->Value());
|
||||
|
||||
typedef CallbackHolder<R($for ARG , [[P$(ARG)]])> HolderT;
|
||||
HolderT* holder = static_cast<HolderT*>(holder_base);
|
||||
|
||||
$if ARITY != 0 [[
|
||||
|
||||
|
||||
$for ARG [[ typename CallbackParamTraits<P$(ARG)>::LocalType a$(ARG);
|
||||
|
||||
]]
|
||||
if ((holder->flags & HolderIsFirstArgument) &&
|
||||
!(holder->flags & SafeAfterDestroyed) &&
|
||||
DestroyedChecker<typename CallbackParamTraits<P1>::LocalType>::IsDestroyed(&args)) {
|
||||
args.ThrowError("Object has been destroyed");
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
if ($for ARG ||
|
||||
[[!GetNextArgument(&args, holder->flags, $if ARG == 1 [[true]] $else [[false]], &a$(ARG))]]) {
|
||||
args.ThrowError();
|
||||
MATE_METHOD_RETURN_UNDEFINED();
|
||||
}
|
||||
|
||||
]]
|
||||
|
||||
return Invoker<R$for ARG [[, P$(ARG)]]>::Go(args, holder->callback$for ARG [[, a$(ARG)]]);
|
||||
}
|
||||
};
|
||||
|
||||
]]
|
||||
|
||||
} // namespace internal
|
||||
|
||||
|
||||
// CreateFunctionTemplate creates a v8::FunctionTemplate that will create
|
||||
// JavaScript functions that execute a provided C++ function or base::Callback.
|
||||
// JavaScript arguments are automatically converted via mate::Converter, as is
|
||||
// the return value of the C++ function, if any.
|
||||
template<typename Sig>
|
||||
v8::Local<v8::FunctionTemplate> CreateFunctionTemplate(
|
||||
v8::Isolate* isolate, const base::Callback<Sig> callback,
|
||||
int callback_flags = 0) {
|
||||
typedef internal::CallbackHolder<Sig> HolderT;
|
||||
HolderT* holder = new HolderT(isolate, callback, callback_flags);
|
||||
|
||||
return v8::FunctionTemplate::New(
|
||||
#if NODE_VERSION_AT_LEAST(0, 11, 11)
|
||||
isolate,
|
||||
#endif
|
||||
&internal::Dispatcher<Sig>::DispatchToCallback,
|
||||
ConvertToV8<v8::Local<v8::External> >(isolate,
|
||||
holder->GetHandle(isolate)));
|
||||
}
|
||||
|
||||
} // namespace mate
|
||||
|
||||
#endif // NATIVE_MATE_FUNCTION_TEMPLATE_H_
|
||||
Loading…
Reference in a new issue