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Diffstat (limited to 'WebCore/bindings/js/JSArrayBufferViewHelper.h')
| -rw-r--r-- | WebCore/bindings/js/JSArrayBufferViewHelper.h | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/WebCore/bindings/js/JSArrayBufferViewHelper.h b/WebCore/bindings/js/JSArrayBufferViewHelper.h deleted file mode 100644 index f34f4b9..0000000 --- a/WebCore/bindings/js/JSArrayBufferViewHelper.h +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Copyright (C) 2009 Apple Inc. All rights reserved. - * Copyright (C) 2009 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: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * - * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE COMPUTER, INC. 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 JSArrayBufferViewHelper_h -#define JSArrayBufferViewHelper_h - -#include "ArrayBufferView.h" -#include "ExceptionCode.h" -#include "JSArrayBuffer.h" -#include "JSDOMBinding.h" -#include <interpreter/CallFrame.h> -#include <runtime/ArgList.h> -#include <runtime/Error.h> -#include <runtime/JSObject.h> -#include <runtime/JSValue.h> - -namespace WebCore { - -template <class T> -JSC::JSValue setWebGLArrayHelper(JSC::ExecState* exec, T* impl, T* (*conversionFunc)(JSC::JSValue)) -{ - if (exec->argumentCount() < 1) - return JSC::throwSyntaxError(exec); - - T* array = (*conversionFunc)(exec->argument(0)); - if (array) { - // void set(in WebGL<T>Array array, [Optional] in unsigned long offset); - unsigned offset = 0; - if (exec->argumentCount() == 2) - offset = exec->argument(1).toInt32(exec); - ExceptionCode ec = 0; - impl->set(array, offset, ec); - setDOMException(exec, ec); - return JSC::jsUndefined(); - } - - if (exec->argument(0).isObject()) { - // void set(in sequence<long> array, [Optional] in unsigned long offset); - JSC::JSObject* array = JSC::asObject(exec->argument(0)); - uint32_t offset = 0; - if (exec->argumentCount() == 2) - offset = exec->argument(1).toInt32(exec); - uint32_t length = array->get(exec, JSC::Identifier(exec, "length")).toInt32(exec); - if (offset > impl->length() - || offset + length > impl->length() - || offset + length < offset) - setDOMException(exec, INDEX_SIZE_ERR); - else { - for (uint32_t i = 0; i < length; i++) { - JSC::JSValue v = array->get(exec, i); - if (exec->hadException()) - return JSC::jsUndefined(); - impl->set(i + offset, v.toNumber(exec)); - } - } - - return JSC::jsUndefined(); - } - - return JSC::throwSyntaxError(exec); -} - -// Template function used by XXXArrayConstructors. -// If this returns 0, it will already have thrown a JavaScript exception. -template<class C, typename T> -PassRefPtr<C> constructArrayBufferViewWithArrayBufferArgument(JSC::ExecState* exec) -{ - RefPtr<ArrayBuffer> buffer = toArrayBuffer(exec->argument(0)); - if (!buffer) - return 0; - - unsigned offset = (exec->argumentCount() > 1) ? exec->argument(1).toUInt32(exec) : 0; - if ((buffer->byteLength() - offset) % sizeof(T)) - throwError(exec, createRangeError(exec, "ArrayBuffer length minus the byteOffset is not a multiple of the element size.")); - unsigned int length = (buffer->byteLength() - offset) / sizeof(T); - if (exec->argumentCount() > 2) - length = exec->argument(2).toUInt32(exec); - RefPtr<C> array = C::create(buffer, offset, length); - if (!array) - setDOMException(exec, INDEX_SIZE_ERR); - return array; -} - -template<class C, typename T> -PassRefPtr<C> constructArrayBufferView(JSC::ExecState* exec) -{ - // There are 3 constructors: - // - // 1) (in int size) - // 2) (in ArrayBuffer buffer, [Optional] in int offset, [Optional] in unsigned int length) - // 3) (in sequence<T>) - This ends up being a JS "array-like" object - // - // For the 0 args case, just create a zero-length view. We could - // consider raising a SyntaxError for this case, but not all - // JavaScript DOM bindings can distinguish between "new - // <Type>Array()" and what occurs when a previously-constructed - // ArrayBufferView is returned to JavaScript; e.g., from - // "array.slice()". - if (exec->argumentCount() < 1) - return C::create(0); - - if (exec->argument(0).isNull()) { - // Invalid first argument - throwTypeError(exec); - return 0; - } - - if (exec->argument(0).isObject()) { - RefPtr<C> view = constructArrayBufferViewWithArrayBufferArgument<C, T>(exec); - if (view) - return view; - - JSC::JSObject* array = asObject(exec->argument(0)); - unsigned length = array->get(exec, JSC::Identifier(exec, "length")).toUInt32(exec); - void* tempValues; - if (!tryFastCalloc(length, sizeof(T)).getValue(tempValues)) { - JSC::throwError(exec, createError(exec, "Error")); - return 0; - } - - OwnFastMallocPtr<T> values(static_cast<T*>(tempValues)); - for (unsigned i = 0; i < length; ++i) { - JSC::JSValue v = array->get(exec, i); - if (exec->hadException()) - return 0; - values.get()[i] = static_cast<T>(v.toNumber(exec)); - } - - RefPtr<C> result = C::create(values.get(), length); - if (!result) - setDOMException(exec, INDEX_SIZE_ERR); - return result; - } - - int length = exec->argument(0).toInt32(exec); - RefPtr<C> result; - if (length >= 0) - result = C::create(static_cast<unsigned>(length)); - if (!result) - throwError(exec, createRangeError(exec, "ArrayBufferView size is not a small enough positive integer.")); - return result; -} - -} // namespace WebCore - -#endif // JSArrayBufferViewHelper_h |