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/*
* Copyright (C) 2016 Apple 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 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.
*/
#include "config.h"
#include "WebAssemblyTableConstructor.h"
#if ENABLE(WEBASSEMBLY)
#include "FunctionPrototype.h"
#include "JSCInlines.h"
#include "JSWebAssemblyHelpers.h"
#include "JSWebAssemblyTable.h"
#include "WebAssemblyTablePrototype.h"
#include "WebAssemblyTableConstructor.lut.h"
namespace JSC {
const ClassInfo WebAssemblyTableConstructor::s_info = { "Function", &Base::s_info, &constructorTableWebAssemblyTable, CREATE_METHOD_TABLE(WebAssemblyTableConstructor) };
/* Source for WebAssemblyTableConstructor.lut.h
@begin constructorTableWebAssemblyTable
@end
*/
static EncodedJSValue JSC_HOST_CALL constructJSWebAssemblyTable(ExecState* exec)
{
VM& vm = exec->vm();
auto throwScope = DECLARE_THROW_SCOPE(vm);
JSObject* memoryDescriptor;
{
JSValue argument = exec->argument(0);
if (!argument.isObject())
return JSValue::encode(throwException(exec, throwScope, createTypeError(exec, ASCIILiteral("WebAssembly.Table expects its first argument to be an object"))));
memoryDescriptor = jsCast<JSObject*>(argument);
}
{
Identifier elementIdent = Identifier::fromString(&vm, "element");
JSValue elementValue = memoryDescriptor->get(exec, elementIdent);
RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
String elementString = elementValue.toWTFString(exec);
RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
if (elementString != "anyfunc")
return JSValue::encode(throwException(exec, throwScope, createTypeError(exec, ASCIILiteral("WebAssembly.Table expects its 'element' field to be the string 'anyfunc'"))));
}
Identifier initialIdent = Identifier::fromString(&vm, "initial");
JSValue initialSizeValue = memoryDescriptor->get(exec, initialIdent);
RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
uint32_t initial = toNonWrappingUint32(exec, initialSizeValue);
RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
std::optional<uint32_t> maximum;
Identifier maximumIdent = Identifier::fromString(&vm, "maximum");
bool hasProperty = memoryDescriptor->hasProperty(exec, maximumIdent);
RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
if (hasProperty) {
JSValue maxSizeValue = memoryDescriptor->get(exec, maximumIdent);
RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
maximum = toNonWrappingUint32(exec, maxSizeValue);
RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
if (initial > *maximum) {
return JSValue::encode(throwException(exec, throwScope,
createRangeError(exec, ASCIILiteral("'maximum' property must be greater than or equal to the 'initial' property"))));
}
}
throwScope.release();
return JSValue::encode(JSWebAssemblyTable::create(exec, vm, exec->lexicalGlobalObject()->WebAssemblyTableStructure(), initial, maximum));
}
static EncodedJSValue JSC_HOST_CALL callJSWebAssemblyTable(ExecState* state)
{
VM& vm = state->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
return JSValue::encode(throwConstructorCannotBeCalledAsFunctionTypeError(state, scope, "WebAssembly.Table"));
}
WebAssemblyTableConstructor* WebAssemblyTableConstructor::create(VM& vm, Structure* structure, WebAssemblyTablePrototype* thisPrototype)
{
auto* constructor = new (NotNull, allocateCell<WebAssemblyTableConstructor>(vm.heap)) WebAssemblyTableConstructor(vm, structure);
constructor->finishCreation(vm, thisPrototype);
return constructor;
}
Structure* WebAssemblyTableConstructor::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
}
void WebAssemblyTableConstructor::finishCreation(VM& vm, WebAssemblyTablePrototype* prototype)
{
Base::finishCreation(vm, ASCIILiteral("Table"));
putDirectWithoutTransition(vm, vm.propertyNames->prototype, prototype, DontEnum | DontDelete | ReadOnly);
putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(1), ReadOnly | DontEnum | DontDelete);
}
WebAssemblyTableConstructor::WebAssemblyTableConstructor(VM& vm, Structure* structure)
: Base(vm, structure)
{
}
ConstructType WebAssemblyTableConstructor::getConstructData(JSCell*, ConstructData& constructData)
{
constructData.native.function = constructJSWebAssemblyTable;
return ConstructType::Host;
}
CallType WebAssemblyTableConstructor::getCallData(JSCell*, CallData& callData)
{
callData.native.function = callJSWebAssemblyTable;
return CallType::Host;
}
void WebAssemblyTableConstructor::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
auto* thisObject = jsCast<WebAssemblyTableConstructor*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
Base::visitChildren(thisObject, visitor);
}
} // namespace JSC
#endif // ENABLE(WEBASSEMBLY)
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