runtime/ExceptionHelpers.cpp

   1 /*
   2  * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  *
   8  * 1.  Redistributions of source code must retain the above copyright
   9  *     notice, this list of conditions and the following disclaimer.
  10  * 2.  Redistributions in binary form must reproduce the above copyright
  11  *     notice, this list of conditions and the following disclaimer in the
  12  *     documentation and/or other materials provided with the distribution.
  13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
  14  *     its contributors may be used to endorse or promote products derived
  15  *     from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include "config.h"
  30 #include "ExceptionHelpers.h"
  31
  32 #include "CodeBlock.h"
  33 #include "CallFrame.h"
  34 #include "ErrorInstance.h"
  35 #include "JSGlobalObjectFunctions.h"
  36 #include "JSObject.h"
  37 #include "JSNotAnObject.h"
  38 #include "Interpreter.h"
  39 #include "Nodes.h"
  40 #include "Operations.h"
  41
  42 namespace JSC {
  43
  44 ASSERT_HAS_TRIVIAL_DESTRUCTOR(TerminatedExecutionError);
  45
  46 const ClassInfo TerminatedExecutionError::s_info = { "TerminatedExecutionError", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(TerminatedExecutionError) };
  47
  48 JSValue TerminatedExecutionError::defaultValue(const JSObject*, ExecState* exec, PreferredPrimitiveType hint)
  49 {
  50     if (hint == PreferString)
  51         return jsNontrivialString(exec, String(ASCIILiteral("JavaScript execution terminated.")));
  52     return JSValue(QNaN);
  53 }
  54
  55 JSObject* createTerminatedExecutionException(VM* vm)
  56 {
  57     return TerminatedExecutionError::create(*vm);
  58 }
  59
  60 bool isTerminatedExecutionException(JSObject* object)
  61 {
  62     return object->inherits(&TerminatedExecutionError::s_info);
  63 }
  64
  65 bool isTerminatedExecutionException(JSValue value)
  66 {
  67     return value.inherits(&TerminatedExecutionError::s_info);
  68 }
  69
  70
  71 JSObject* createStackOverflowError(ExecState* exec)
  72 {
  73     return createRangeError(exec, ASCIILiteral("Maximum call stack size exceeded."));
  74 }
  75
  76 JSObject* createStackOverflowError(JSGlobalObject* globalObject)
  77 {
  78     return createRangeError(globalObject, ASCIILiteral("Maximum call stack size exceeded."));
  79 }
  80
  81 JSObject* createUndefinedVariableError(ExecState* exec, const Identifier& ident)
  82 {
  83     String message(makeString("Can't find variable: ", ident.string()));
  84     return createReferenceError(exec, message);
  85 }
  86
  87 JSObject* createInvalidParamError(ExecState* exec, const char* op, JSValue value)
  88 {
  89     String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not a valid argument for '", op, "'");
  90     JSObject* exception = createTypeError(exec, errorMessage);
  91     ASSERT(exception->isErrorInstance());
  92     static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
  93     return exception;
  94 }
  95
  96 JSObject* createNotAConstructorError(ExecState* exec, JSValue value)
  97 {
  98     String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not a constructor");
  99     JSObject* exception = createTypeError(exec, errorMessage);
 100     ASSERT(exception->isErrorInstance());
 101     static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
 102     return exception;
 103 }
 104
 105 JSObject* createNotAFunctionError(ExecState* exec, JSValue value)
 106 {
 107     String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not a function");
 108     JSObject* exception = createTypeError(exec, errorMessage);
 109     ASSERT(exception->isErrorInstance());
 110     static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
 111     return exception;
 112 }
 113
 114 JSObject* createNotAnObjectError(ExecState* exec, JSValue value)
 115 {
 116     String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not an object");
 117     JSObject* exception = createTypeError(exec, errorMessage);
 118     ASSERT(exception->isErrorInstance());
 119     static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
 120     return exception;
 121 }
 122
 123 JSObject* createErrorForInvalidGlobalAssignment(ExecState* exec, const String& propertyName)
 124 {
 125     return createReferenceError(exec, makeString("Strict mode forbids implicit creation of global property '", propertyName, "'"));
 126 }
 127
 128 JSObject* createOutOfMemoryError(JSGlobalObject* globalObject)
 129 {
 130     return createError(globalObject, ASCIILiteral("Out of memory"));
 131 }
 132
 133 JSObject* throwOutOfMemoryError(ExecState* exec)
 134 {
 135     return throwError(exec, createOutOfMemoryError(exec->lexicalGlobalObject()));
 136 }
 137
 138 JSObject* throwStackOverflowError(ExecState* exec)
 139 {
 140     Interpreter::ErrorHandlingMode mode(exec);
 141     return throwError(exec, createStackOverflowError(exec));
 142 }
 143
 144 JSObject* throwTerminatedExecutionException(ExecState* exec)
 145 {
 146     Interpreter::ErrorHandlingMode mode(exec);
 147     return throwError(exec, createTerminatedExecutionException(&exec->vm()));
 148 }
 149
 150 } // namespace JSC