gecko/dom/xbl/nsXBLMaybeCompiled.h
Robert O'Callahan 19391253d9 Bug 946065. Part 4: Move content/xbl to dom/ and flatten away 'src' directory. r=Ms2ger
--HG--
rename : content/xbl/src/XBLChildrenElement.cpp => dom/xbl/XBLChildrenElement.cpp
rename : content/xbl/src/XBLChildrenElement.h => dom/xbl/XBLChildrenElement.h
rename : content/xbl/builtin/android/jar.mn => dom/xbl/builtin/android/jar.mn
rename : content/xbl/builtin/android/moz.build => dom/xbl/builtin/android/moz.build
rename : content/xbl/builtin/android/platformHTMLBindings.xml => dom/xbl/builtin/android/platformHTMLBindings.xml
rename : content/xbl/builtin/browser-base.inc => dom/xbl/builtin/browser-base.inc
rename : content/xbl/builtin/editor-base.inc => dom/xbl/builtin/editor-base.inc
rename : content/xbl/builtin/emacs/jar.mn => dom/xbl/builtin/emacs/jar.mn
rename : content/xbl/builtin/emacs/moz.build => dom/xbl/builtin/emacs/moz.build
rename : content/xbl/builtin/emacs/platformHTMLBindings.xml => dom/xbl/builtin/emacs/platformHTMLBindings.xml
rename : content/xbl/builtin/input-fields-base.inc => dom/xbl/builtin/input-fields-base.inc
rename : content/xbl/builtin/mac/jar.mn => dom/xbl/builtin/mac/jar.mn
rename : content/xbl/builtin/mac/moz.build => dom/xbl/builtin/mac/moz.build
rename : content/xbl/builtin/mac/platformHTMLBindings.xml => dom/xbl/builtin/mac/platformHTMLBindings.xml
rename : content/xbl/builtin/moz.build => dom/xbl/builtin/moz.build
rename : content/xbl/builtin/textareas-base.inc => dom/xbl/builtin/textareas-base.inc
rename : content/xbl/builtin/unix/jar.mn => dom/xbl/builtin/unix/jar.mn
rename : content/xbl/builtin/unix/moz.build => dom/xbl/builtin/unix/moz.build
rename : content/xbl/builtin/unix/platformHTMLBindings.xml => dom/xbl/builtin/unix/platformHTMLBindings.xml
rename : content/xbl/builtin/win/jar.mn => dom/xbl/builtin/win/jar.mn
rename : content/xbl/builtin/win/moz.build => dom/xbl/builtin/win/moz.build
rename : content/xbl/builtin/win/platformHTMLBindings.xml => dom/xbl/builtin/win/platformHTMLBindings.xml
rename : content/xbl/crashtests/205735-1.xhtml => dom/xbl/crashtests/205735-1.xhtml
rename : content/xbl/crashtests/223799-1.xul => dom/xbl/crashtests/223799-1.xul
rename : content/xbl/crashtests/226744-1.xhtml => dom/xbl/crashtests/226744-1.xhtml
rename : content/xbl/crashtests/232095-1.xul => dom/xbl/crashtests/232095-1.xul
rename : content/xbl/crashtests/277523-1.xhtml => dom/xbl/crashtests/277523-1.xhtml
rename : content/xbl/crashtests/277950-1.xhtml => dom/xbl/crashtests/277950-1.xhtml
rename : content/xbl/crashtests/336744-1-inner.html => dom/xbl/crashtests/336744-1-inner.html
rename : content/xbl/crashtests/336744-1.html => dom/xbl/crashtests/336744-1.html
rename : content/xbl/crashtests/336960-1-inner.xhtml => dom/xbl/crashtests/336960-1-inner.xhtml
rename : content/xbl/crashtests/336960-1.html => dom/xbl/crashtests/336960-1.html
rename : content/xbl/crashtests/342954-1.xhtml => dom/xbl/crashtests/342954-1.xhtml
rename : content/xbl/crashtests/342954-2-xbl.xml => dom/xbl/crashtests/342954-2-xbl.xml
rename : content/xbl/crashtests/342954-2.xhtml => dom/xbl/crashtests/342954-2.xhtml
rename : content/xbl/crashtests/368276-1.xhtml => dom/xbl/crashtests/368276-1.xhtml
rename : content/xbl/crashtests/368641-1.xhtml => dom/xbl/crashtests/368641-1.xhtml
rename : content/xbl/crashtests/378521-1.xhtml => dom/xbl/crashtests/378521-1.xhtml
rename : content/xbl/crashtests/382376-1.xhtml => dom/xbl/crashtests/382376-1.xhtml
rename : content/xbl/crashtests/382376-2.xhtml => dom/xbl/crashtests/382376-2.xhtml
rename : content/xbl/crashtests/397596-1.xhtml => dom/xbl/crashtests/397596-1.xhtml
rename : content/xbl/crashtests/404125-1.xhtml => dom/xbl/crashtests/404125-1.xhtml
rename : content/xbl/crashtests/406900-1.xul => dom/xbl/crashtests/406900-1.xul
rename : content/xbl/crashtests/406904-1.xhtml => dom/xbl/crashtests/406904-1.xhtml
rename : content/xbl/crashtests/406904-2.xhtml => dom/xbl/crashtests/406904-2.xhtml
rename : content/xbl/crashtests/415192-1.xul => dom/xbl/crashtests/415192-1.xul
rename : content/xbl/crashtests/415301-1.xul => dom/xbl/crashtests/415301-1.xul
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rename : content/xbl/crashtests/421997-1.xhtml => dom/xbl/crashtests/421997-1.xhtml
rename : content/xbl/crashtests/432813-1-xbl.xml => dom/xbl/crashtests/432813-1-xbl.xml
rename : content/xbl/crashtests/432813-1.xhtml => dom/xbl/crashtests/432813-1.xhtml
rename : content/xbl/crashtests/454820-1.html => dom/xbl/crashtests/454820-1.html
rename : content/xbl/crashtests/460665-1.xhtml => dom/xbl/crashtests/460665-1.xhtml
rename : content/xbl/crashtests/463511-1.xhtml => dom/xbl/crashtests/463511-1.xhtml
rename : content/xbl/crashtests/464863-1.xhtml => dom/xbl/crashtests/464863-1.xhtml
rename : content/xbl/crashtests/472260-1.xhtml => dom/xbl/crashtests/472260-1.xhtml
rename : content/xbl/crashtests/477878-1.html => dom/xbl/crashtests/477878-1.html
rename : content/xbl/crashtests/492978-1.xul => dom/xbl/crashtests/492978-1.xul
rename : content/xbl/crashtests/493123-1.xhtml => dom/xbl/crashtests/493123-1.xhtml
rename : content/xbl/crashtests/495354-1.xhtml => dom/xbl/crashtests/495354-1.xhtml
rename : content/xbl/crashtests/507628-1.xhtml => dom/xbl/crashtests/507628-1.xhtml
rename : content/xbl/crashtests/507991-1.xhtml => dom/xbl/crashtests/507991-1.xhtml
rename : content/xbl/crashtests/830614-1.xul => dom/xbl/crashtests/830614-1.xul
rename : content/xbl/crashtests/895805-1.xhtml => dom/xbl/crashtests/895805-1.xhtml
rename : content/xbl/crashtests/crashtests.list => dom/xbl/crashtests/crashtests.list
rename : content/xbl/crashtests/set-field-bad-this.xhtml => dom/xbl/crashtests/set-field-bad-this.xhtml
rename : content/xbl/src/moz.build => dom/xbl/moz.build
rename : content/xbl/src/nsBindingManager.cpp => dom/xbl/nsBindingManager.cpp
rename : content/xbl/src/nsBindingManager.h => dom/xbl/nsBindingManager.h
rename : content/xbl/src/nsXBLBinding.cpp => dom/xbl/nsXBLBinding.cpp
rename : content/xbl/src/nsXBLBinding.h => dom/xbl/nsXBLBinding.h
rename : content/xbl/src/nsXBLContentSink.cpp => dom/xbl/nsXBLContentSink.cpp
rename : content/xbl/src/nsXBLContentSink.h => dom/xbl/nsXBLContentSink.h
rename : content/xbl/src/nsXBLDocumentInfo.cpp => dom/xbl/nsXBLDocumentInfo.cpp
rename : content/xbl/src/nsXBLDocumentInfo.h => dom/xbl/nsXBLDocumentInfo.h
rename : content/xbl/src/nsXBLEventHandler.cpp => dom/xbl/nsXBLEventHandler.cpp
rename : content/xbl/src/nsXBLEventHandler.h => dom/xbl/nsXBLEventHandler.h
rename : content/xbl/src/nsXBLMaybeCompiled.h => dom/xbl/nsXBLMaybeCompiled.h
rename : content/xbl/src/nsXBLProtoImpl.cpp => dom/xbl/nsXBLProtoImpl.cpp
rename : content/xbl/src/nsXBLProtoImpl.h => dom/xbl/nsXBLProtoImpl.h
rename : content/xbl/src/nsXBLProtoImplField.cpp => dom/xbl/nsXBLProtoImplField.cpp
rename : content/xbl/src/nsXBLProtoImplField.h => dom/xbl/nsXBLProtoImplField.h
rename : content/xbl/src/nsXBLProtoImplMember.h => dom/xbl/nsXBLProtoImplMember.h
rename : content/xbl/src/nsXBLProtoImplMethod.cpp => dom/xbl/nsXBLProtoImplMethod.cpp
rename : content/xbl/src/nsXBLProtoImplMethod.h => dom/xbl/nsXBLProtoImplMethod.h
rename : content/xbl/src/nsXBLProtoImplProperty.cpp => dom/xbl/nsXBLProtoImplProperty.cpp
rename : content/xbl/src/nsXBLProtoImplProperty.h => dom/xbl/nsXBLProtoImplProperty.h
rename : content/xbl/src/nsXBLPrototypeBinding.cpp => dom/xbl/nsXBLPrototypeBinding.cpp
rename : content/xbl/src/nsXBLPrototypeBinding.h => dom/xbl/nsXBLPrototypeBinding.h
rename : content/xbl/src/nsXBLPrototypeHandler.cpp => dom/xbl/nsXBLPrototypeHandler.cpp
rename : content/xbl/src/nsXBLPrototypeHandler.h => dom/xbl/nsXBLPrototypeHandler.h
rename : content/xbl/src/nsXBLPrototypeResources.cpp => dom/xbl/nsXBLPrototypeResources.cpp
rename : content/xbl/src/nsXBLPrototypeResources.h => dom/xbl/nsXBLPrototypeResources.h
rename : content/xbl/src/nsXBLResourceLoader.cpp => dom/xbl/nsXBLResourceLoader.cpp
rename : content/xbl/src/nsXBLResourceLoader.h => dom/xbl/nsXBLResourceLoader.h
rename : content/xbl/src/nsXBLSerialize.cpp => dom/xbl/nsXBLSerialize.cpp
rename : content/xbl/src/nsXBLSerialize.h => dom/xbl/nsXBLSerialize.h
rename : content/xbl/src/nsXBLService.cpp => dom/xbl/nsXBLService.cpp
rename : content/xbl/src/nsXBLService.h => dom/xbl/nsXBLService.h
rename : content/xbl/src/nsXBLWindowKeyHandler.cpp => dom/xbl/nsXBLWindowKeyHandler.cpp
rename : content/xbl/src/nsXBLWindowKeyHandler.h => dom/xbl/nsXBLWindowKeyHandler.h
rename : content/xbl/test/bug310107-resource.xhtml => dom/xbl/test/bug310107-resource.xhtml
rename : content/xbl/test/chrome.ini => dom/xbl/test/chrome.ini
rename : content/xbl/test/file_bug372769.xhtml => dom/xbl/test/file_bug372769.xhtml
rename : content/xbl/test/file_bug379959_cross.html => dom/xbl/test/file_bug379959_cross.html
rename : content/xbl/test/file_bug379959_data.html => dom/xbl/test/file_bug379959_data.html
rename : content/xbl/test/file_bug379959_xbl.xml => dom/xbl/test/file_bug379959_xbl.xml
rename : content/xbl/test/file_bug397934.xhtml => dom/xbl/test/file_bug397934.xhtml
rename : content/xbl/test/file_bug481558.xbl => dom/xbl/test/file_bug481558.xbl
rename : content/xbl/test/file_bug481558css.sjs => dom/xbl/test/file_bug481558css.sjs
rename : content/xbl/test/file_bug591198_inner.html => dom/xbl/test/file_bug591198_inner.html
rename : content/xbl/test/file_bug591198_xbl.xml => dom/xbl/test/file_bug591198_xbl.xml
rename : content/xbl/test/file_bug821850.xhtml => dom/xbl/test/file_bug821850.xhtml
rename : content/xbl/test/file_bug844783.xhtml => dom/xbl/test/file_bug844783.xhtml
rename : content/xbl/test/file_bug944407.html => dom/xbl/test/file_bug944407.html
rename : content/xbl/test/file_bug944407.xml => dom/xbl/test/file_bug944407.xml
rename : content/xbl/test/file_bug950909.html => dom/xbl/test/file_bug950909.html
rename : content/xbl/test/file_bug950909.xml => dom/xbl/test/file_bug950909.xml
rename : content/xbl/test/mochitest.ini => dom/xbl/test/mochitest.ini
rename : content/xbl/test/moz.build => dom/xbl/test/moz.build
rename : content/xbl/test/test_bug310107.html => dom/xbl/test/test_bug310107.html
rename : content/xbl/test/test_bug366770.html => dom/xbl/test/test_bug366770.html
rename : content/xbl/test/test_bug371724.xhtml => dom/xbl/test/test_bug371724.xhtml
rename : content/xbl/test/test_bug372769.html => dom/xbl/test/test_bug372769.html
rename : content/xbl/test/test_bug378518.xul => dom/xbl/test/test_bug378518.xul
rename : content/xbl/test/test_bug378866.xhtml => dom/xbl/test/test_bug378866.xhtml
rename : content/xbl/test/test_bug379959.html => dom/xbl/test/test_bug379959.html
rename : content/xbl/test/test_bug389322.xhtml => dom/xbl/test/test_bug389322.xhtml
rename : content/xbl/test/test_bug397934.html => dom/xbl/test/test_bug397934.html
rename : content/xbl/test/test_bug398135.xul => dom/xbl/test/test_bug398135.xul
rename : content/xbl/test/test_bug398492.xul => dom/xbl/test/test_bug398492.xul
rename : content/xbl/test/test_bug400705.xhtml => dom/xbl/test/test_bug400705.xhtml
rename : content/xbl/test/test_bug401907.xhtml => dom/xbl/test/test_bug401907.xhtml
rename : content/xbl/test/test_bug403162.xhtml => dom/xbl/test/test_bug403162.xhtml
rename : content/xbl/test/test_bug468210.xhtml => dom/xbl/test/test_bug468210.xhtml
rename : content/xbl/test/test_bug481558.html => dom/xbl/test/test_bug481558.html
rename : content/xbl/test/test_bug526178.xhtml => dom/xbl/test/test_bug526178.xhtml
rename : content/xbl/test/test_bug542406.xhtml => dom/xbl/test/test_bug542406.xhtml
rename : content/xbl/test/test_bug591198.html => dom/xbl/test/test_bug591198.html
rename : content/xbl/test/test_bug639338.xhtml => dom/xbl/test/test_bug639338.xhtml
rename : content/xbl/test/test_bug721452.xul => dom/xbl/test/test_bug721452.xul
rename : content/xbl/test/test_bug723676.xul => dom/xbl/test/test_bug723676.xul
rename : content/xbl/test/test_bug772966.xul => dom/xbl/test/test_bug772966.xul
rename : content/xbl/test/test_bug790265.xhtml => dom/xbl/test/test_bug790265.xhtml
rename : content/xbl/test/test_bug821850.html => dom/xbl/test/test_bug821850.html
rename : content/xbl/test/test_bug844783.html => dom/xbl/test/test_bug844783.html
rename : content/xbl/test/test_bug944407.xul => dom/xbl/test/test_bug944407.xul
rename : content/xbl/test/test_bug950909.xul => dom/xbl/test/test_bug950909.xul
extra : rebase_source : 44ab05088f70826c70dee3af30221e628ec1e4e8
2014-01-10 16:03:25 +13:00

157 lines
4.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsXBLMaybeCompiled_h__
#define nsXBLMaybeCompiled_h__
#include "js/GCAPI.h"
/*
* A union containing either a pointer representing uncompiled source or a
* JSObject* representing the compiled result. The class is templated on the
* source object type.
*
* The purpose of abstracting this as a separate class is to allow it to be
* wrapped in a JS::Heap<T> to correctly handle post-barriering of the JSObject
* pointer, when present.
*/
template <class UncompiledT>
class nsXBLMaybeCompiled
{
public:
nsXBLMaybeCompiled() : mUncompiled(BIT_UNCOMPILED) {}
nsXBLMaybeCompiled(UncompiledT* uncompiled)
: mUncompiled(reinterpret_cast<uintptr_t>(uncompiled) | BIT_UNCOMPILED) {}
nsXBLMaybeCompiled(JSObject* compiled) : mCompiled(compiled) {}
bool IsCompiled() const
{
return !(mUncompiled & BIT_UNCOMPILED);
}
UncompiledT* GetUncompiled() const
{
MOZ_ASSERT(!IsCompiled(), "Attempt to get compiled function as uncompiled");
uintptr_t unmasked = mUncompiled & ~BIT_UNCOMPILED;
return reinterpret_cast<UncompiledT*>(unmasked);
}
JSObject* GetJSFunction() const
{
MOZ_ASSERT(IsCompiled(), "Attempt to get uncompiled function as compiled");
if (mCompiled) {
JS::ExposeObjectToActiveJS(mCompiled);
}
return mCompiled;
}
// This is appropriate for use in tracing methods, etc.
JSObject* GetJSFunctionPreserveColor() const
{
MOZ_ASSERT(IsCompiled(), "Attempt to get uncompiled function as compiled");
return mCompiled;
}
private:
JSObject*& UnsafeGetJSFunction()
{
MOZ_ASSERT(IsCompiled(), "Attempt to get uncompiled function as compiled");
return mCompiled;
}
enum { BIT_UNCOMPILED = 1 << 0 };
union
{
// An pointer that represents the function before being compiled, with
// BIT_UNCOMPILED set.
uintptr_t mUncompiled;
// The JS object for the compiled result.
JSObject* mCompiled;
};
friend class js::GCMethods<nsXBLMaybeCompiled<UncompiledT> >;
};
/* Add support for JS::Heap<nsXBLMaybeCompiled>. */
namespace js {
template <class UncompiledT>
struct GCMethods<nsXBLMaybeCompiled<UncompiledT> > : public GCMethods<JSObject *>
{
typedef struct GCMethods<JSObject *> Base;
static nsXBLMaybeCompiled<UncompiledT> initial() { return nsXBLMaybeCompiled<UncompiledT>(); }
static bool poisoned(nsXBLMaybeCompiled<UncompiledT> function)
{
return function.IsCompiled() && Base::poisoned(function.GetJSFunction());
}
static bool needsPostBarrier(nsXBLMaybeCompiled<UncompiledT> function)
{
return function.IsCompiled() && Base::needsPostBarrier(function.GetJSFunction());
}
#ifdef JSGC_GENERATIONAL
static void postBarrier(nsXBLMaybeCompiled<UncompiledT>* functionp)
{
Base::postBarrier(&functionp->UnsafeGetJSFunction());
}
static void relocate(nsXBLMaybeCompiled<UncompiledT>* functionp)
{
Base::relocate(&functionp->UnsafeGetJSFunction());
}
#endif
};
template <class UncompiledT>
class HeapBase<nsXBLMaybeCompiled<UncompiledT> >
{
const JS::Heap<nsXBLMaybeCompiled<UncompiledT> >& wrapper() const {
return *static_cast<const JS::Heap<nsXBLMaybeCompiled<UncompiledT> >*>(this);
}
JS::Heap<nsXBLMaybeCompiled<UncompiledT> >& wrapper() {
return *static_cast<JS::Heap<nsXBLMaybeCompiled<UncompiledT> >*>(this);
}
const nsXBLMaybeCompiled<UncompiledT>* extract() const {
return wrapper().address();
}
nsXBLMaybeCompiled<UncompiledT>* extract() {
return wrapper().unsafeGet();
}
public:
bool IsCompiled() const { return extract()->IsCompiled(); }
UncompiledT* GetUncompiled() const { return extract()->GetUncompiled(); }
JSObject* GetJSFunction() const { return extract()->GetJSFunction(); }
JSObject* GetJSFunctionPreserveColor() const { return extract()->GetJSFunctionPreserveColor(); }
void SetUncompiled(UncompiledT* source) {
wrapper().set(nsXBLMaybeCompiled<UncompiledT>(source));
}
void SetJSFunction(JSObject* function) {
wrapper().set(nsXBLMaybeCompiled<UncompiledT>(function));
}
JS::Heap<JSObject*>& AsHeapObject()
{
MOZ_ASSERT(extract()->IsCompiled());
return *reinterpret_cast<JS::Heap<JSObject*>*>(this);
}
};
} /* namespace js */
#endif // nsXBLMaybeCompiled_h__