ExceptionHelpers.cpp   [plain text]

/*
 * Copyright (C) 2008, 2009 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.
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 "ExceptionHelpers.h"

#include "CodeBlock.h"
#include "CallFrame.h"
#include "ErrorInstance.h"
#include "JSGlobalObjectFunctions.h"
#include "JSObject.h"
#include "JSNotAnObject.h"
#include "Interpreter.h"
#include "Nodes.h"
#include "Operations.h"

namespace JSC {

ASSERT_HAS_TRIVIAL_DESTRUCTOR(TerminatedExecutionError);

const ClassInfo TerminatedExecutionError::s_info = { "TerminatedExecutionError", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(TerminatedExecutionError) };

JSValue TerminatedExecutionError::defaultValue(const JSObject*, ExecState* exec, PreferredPrimitiveType hint)
{
    if (hint == PreferString)
        return jsNontrivialString(exec, String(ASCIILiteral("JavaScript execution terminated.")));
    return JSValue(QNaN);
}

JSObject* createTerminatedExecutionException(VM* vm)
{
    return TerminatedExecutionError::create(*vm);
}

bool isTerminatedExecutionException(JSObject* object)
{
    return object->inherits(&TerminatedExecutionError::s_info);
}

bool isTerminatedExecutionException(JSValue value)
{
    return value.inherits(&TerminatedExecutionError::s_info);
}


JSObject* createStackOverflowError(ExecState* exec)
{
    return createRangeError(exec, ASCIILiteral("Maximum call stack size exceeded."));
}

JSObject* createStackOverflowError(JSGlobalObject* globalObject)
{
    return createRangeError(globalObject, ASCIILiteral("Maximum call stack size exceeded."));
}

JSObject* createUndefinedVariableError(ExecState* exec, const Identifier& ident)
{
    String message(makeString("Can't find variable: ", ident.string()));
    return createReferenceError(exec, message);
}
    
JSObject* createInvalidParamError(ExecState* exec, const char* op, JSValue value)
{
    String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not a valid argument for '", op, "'");
    JSObject* exception = createTypeError(exec, errorMessage);
    ASSERT(exception->isErrorInstance());
    static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
    return exception;
}

JSObject* createNotAConstructorError(ExecState* exec, JSValue value)
{
    String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not a constructor");
    JSObject* exception = createTypeError(exec, errorMessage);
    ASSERT(exception->isErrorInstance());
    static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
    return exception;
}

JSObject* createNotAFunctionError(ExecState* exec, JSValue value)
{
    String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not a function");
    JSObject* exception = createTypeError(exec, errorMessage);
    ASSERT(exception->isErrorInstance());
    static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
    return exception;
}

JSObject* createNotAnObjectError(ExecState* exec, JSValue value)
{
    String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not an object");
    JSObject* exception = createTypeError(exec, errorMessage);
    ASSERT(exception->isErrorInstance());
    static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
    return exception;
}

JSObject* createErrorForInvalidGlobalAssignment(ExecState* exec, const String& propertyName)
{
    return createReferenceError(exec, makeString("Strict mode forbids implicit creation of global property '", propertyName, "'"));
}

JSObject* createOutOfMemoryError(JSGlobalObject* globalObject)
{
    return createError(globalObject, ASCIILiteral("Out of memory"));
}

JSObject* throwOutOfMemoryError(ExecState* exec)
{
    return throwError(exec, createOutOfMemoryError(exec->lexicalGlobalObject()));
}

JSObject* throwStackOverflowError(ExecState* exec)
{
    Interpreter::ErrorHandlingMode mode(exec);
    return throwError(exec, createStackOverflowError(exec));
}

JSObject* throwTerminatedExecutionException(ExecState* exec)
{
    Interpreter::ErrorHandlingMode mode(exec);
    return throwError(exec, createTerminatedExecutionException(&exec->vm()));
}

} // namespace JSC