| /* |
| * Copyright (C) 2010 Google Inc. 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 V8BindingMacros_h |
| #define V8BindingMacros_h |
| |
| namespace blink { |
| |
| // type is an instance of class template V8StringResource<>, |
| // but Mode argument varies; using type (not Mode) for consistency |
| // with other macros and ease of code generation |
| #define TOSTRING_VOID(type, var, value) \ |
| type var(value); \ |
| if (UNLIKELY(!var.prepare())) \ |
| return; |
| |
| #define TOSTRING_DEFAULT(type, var, value, retVal) \ |
| type var(value); \ |
| if (UNLIKELY(!var.prepare())) \ |
| return retVal; |
| |
| // Checks for a given v8::Value (value) whether it is an ArrayBufferView and |
| // below a certain size limit. If below the limit, memory is allocated on the |
| // stack to hold the actual payload. Keep the limit in sync with V8's |
| // typed_array_max_size. |
| #define allocateFlexibleArrayBufferViewStorage(value) \ |
| (value->IsArrayBufferView() && \ |
| (value.As<v8::ArrayBufferView>()->ByteLength() <= 64) \ |
| ? alloca(value.As<v8::ArrayBufferView>()->ByteLength()) \ |
| : nullptr) |
| |
| template <typename T> |
| inline bool v8Call(v8::Maybe<T> maybe, T& outVariable) { |
| if (maybe.IsNothing()) |
| return false; |
| outVariable = maybe.FromJust(); |
| return true; |
| } |
| |
| inline bool v8CallBoolean(v8::Maybe<bool> maybe) { |
| bool result; |
| return v8Call(maybe, result) && result; |
| } |
| |
| template <typename T> |
| inline bool v8Call(v8::Maybe<T> maybe, T& outVariable, v8::TryCatch& tryCatch) { |
| bool success = v8Call(maybe, outVariable); |
| ASSERT(success || tryCatch.HasCaught()); |
| return success; |
| } |
| |
| template <typename T> |
| inline bool v8Call(v8::MaybeLocal<T> maybeLocal, v8::Local<T>& outVariable) { |
| return maybeLocal.ToLocal(&outVariable); |
| } |
| |
| template <typename T> |
| inline bool v8Call(v8::MaybeLocal<T> maybeLocal, |
| v8::Local<T>& outVariable, |
| v8::TryCatch& tryCatch) { |
| bool success = maybeLocal.ToLocal(&outVariable); |
| ASSERT(success || tryCatch.HasCaught()); |
| return success; |
| } |
| |
| } // namespace blink |
| |
| #endif // V8BindingMacros_h |