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// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef V8_APIUTILS_H_
#define V8_APIUTILS_H_
namespace v8 {
class ImplementationUtilities {
public:
static int GetNameCount(ExtensionConfiguration* that) {
return that->name_count_;
}
static const char** GetNames(ExtensionConfiguration* that) {
return that->names_;
}
// Packs additional parameters for the NewArguments function. |implicit_args|
// is a pointer to the last element of 4-elements array controlled by GC.
static void PrepareArgumentsData(internal::Object** implicit_args,
internal::Isolate* isolate,
internal::Object* data,
internal::JSFunction* callee,
internal::Object* holder) {
implicit_args[v8::Arguments::kDataIndex] = data;
implicit_args[v8::Arguments::kCalleeIndex] = callee;
implicit_args[v8::Arguments::kHolderIndex] = holder;
implicit_args[v8::Arguments::kIsolateIndex] =
reinterpret_cast<internal::Object*>(isolate);
}
static v8::Arguments NewArguments(internal::Object** implicit_args,
internal::Object** argv, int argc,
bool is_construct_call) {
ASSERT(implicit_args[v8::Arguments::kCalleeIndex]->IsJSFunction());
ASSERT(implicit_args[v8::Arguments::kHolderIndex]->IsHeapObject());
// The implicit isolate argument is not tagged and looks like a SMI.
ASSERT(implicit_args[v8::Arguments::kIsolateIndex]->IsSmi());
return v8::Arguments(implicit_args, argv, argc, is_construct_call);
}
// Introduce an alias for the handle scope data to allow non-friends
// to access the HandleScope data.
typedef v8::HandleScope::Data HandleScopeData;
#ifdef DEBUG
static void ZapHandleRange(internal::Object** begin, internal::Object** end);
#endif
};
} // namespace v8
#endif // V8_APIUTILS_H_
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