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 "UStringConcatenate.h"
  41
  42 namespace JSC {
  43
  44 class InterruptedExecutionError : public JSNonFinalObject {
  45 public:
  46     InterruptedExecutionError(JSGlobalData* globalData)
  47         : JSNonFinalObject(*globalData, globalData->interruptedExecutionErrorStructure.get())
  48     {
  49     }
  50
  51     virtual ComplType exceptionType() const { return Interrupted; }
  52
  53     virtual UString toString(ExecState*) const { return "JavaScript execution exceeded timeout."; }
  54 };
  55
  56 JSObject* createInterruptedExecutionException(JSGlobalData* globalData)
  57 {
  58     return new (globalData) InterruptedExecutionError(globalData);
  59 }
  60
  61 class TerminatedExecutionError : public JSNonFinalObject {
  62 public:
  63     TerminatedExecutionError(JSGlobalData* globalData)
  64         : JSNonFinalObject(*globalData, globalData->terminatedExecutionErrorStructure.get())
  65     {
  66     }
  67
  68     virtual ComplType exceptionType() const { return Terminated; }
  69
  70     virtual UString toString(ExecState*) const { return "JavaScript execution terminated."; }
  71 };
  72
  73 JSObject* createTerminatedExecutionException(JSGlobalData* globalData)
  74 {
  75     return new (globalData) TerminatedExecutionError(globalData);
  76 }
  77
  78 JSObject* createStackOverflowError(ExecState* exec)
  79 {
  80     return createRangeError(exec, "Maximum call stack size exceeded.");
  81 }
  82
  83 JSObject* createStackOverflowError(JSGlobalObject* globalObject)
  84 {
  85     return createRangeError(globalObject, "Maximum call stack size exceeded.");
  86 }
  87
  88 JSObject* createUndefinedVariableError(ExecState* exec, const Identifier& ident)
  89 {
  90     UString message(makeUString("Can't find variable: ", ident.ustring()));
  91     return createReferenceError(exec, message);
  92 }
  93
  94 JSObject* createInvalidParamError(ExecState* exec, const char* op, JSValue value)
  95 {
  96     UString errorMessage = makeUString("'", value.toString(exec), "' is not a valid argument for '", op, "'");
  97     JSObject* exception = createTypeError(exec, errorMessage);
  98     ASSERT(exception->isErrorInstance());
  99     static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
 100     return exception;
 101 }
 102
 103 JSObject* createNotAConstructorError(ExecState* exec, JSValue value)
 104 {
 105     UString errorMessage = makeUString("'", value.toString(exec), "' is not a constructor");
 106     JSObject* exception = createTypeError(exec, errorMessage);
 107     ASSERT(exception->isErrorInstance());
 108     static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
 109     return exception;
 110 }
 111
 112 JSObject* createNotAFunctionError(ExecState* exec, JSValue value)
 113 {
 114     UString errorMessage = makeUString("'", value.toString(exec), "' is not a function");
 115     JSObject* exception = createTypeError(exec, errorMessage);
 116     ASSERT(exception->isErrorInstance());
 117     static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
 118     return exception;
 119 }
 120
 121 JSObject* createNotAnObjectError(ExecState* exec, JSValue value)
 122 {
 123     UString errorMessage = makeUString("'", value.toString(exec), "' is not an object");
 124     JSObject* exception = createTypeError(exec, errorMessage);
 125     ASSERT(exception->isErrorInstance());
 126     static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
 127     return exception;
 128 }
 129
 130 JSObject* createErrorForInvalidGlobalAssignment(ExecState* exec, const UString& propertyName)
 131 {
 132     return createReferenceError(exec, makeUString("Strict mode forbids implicit creation of global property '", propertyName, "'"));
 133 }
 134
 135 JSObject* createOutOfMemoryError(JSGlobalObject* globalObject)
 136 {
 137     return createError(globalObject, "Out of memory");
 138 }
 139
 140 JSObject* throwOutOfMemoryError(ExecState* exec)
 141 {
 142     return throwError(exec, createOutOfMemoryError(exec->lexicalGlobalObject()));
 143 }
 144
 145 JSObject* throwStackOverflowError(ExecState* exec)
 146 {
 147     return throwError(exec, createStackOverflowError(exec));
 148 }
 149
 150 } // namespace JSC