runtime/Error.cpp

   1 /*
   2  *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
   3  *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
   4  *  Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
   5  *  Copyright (C) 2007 Eric Seidel (eric@webkit.org)
   6  *
   7  *  This library is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU Library General Public
   9  *  License as published by the Free Software Foundation; either
  10  *  version 2 of the License, or (at your option) any later version.
  11  *
  12  *  This library is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *  Library General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Library General Public License
  18  *  along with this library; see the file COPYING.LIB.  If not, write to
  19  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20  *  Boston, MA 02110-1301, USA.
  21  *
  22  */
  23
  24 #include "config.h"
  25 #include "Error.h"
  26
  27 #include "ConstructData.h"
  28 #include "ErrorConstructor.h"
  29 #include "ExceptionHelpers.h"
  30 #include "FunctionPrototype.h"
  31 #include "JSArray.h"
  32 #include "JSFunction.h"
  33 #include "JSGlobalObject.h"
  34 #include "JSObject.h"
  35 #include "JSString.h"
  36 #include "NativeErrorConstructor.h"
  37 #include "Operations.h"
  38 #include "SourceCode.h"
  39
  40 #include <wtf/text/StringBuilder.h>
  41
  42 namespace JSC {
  43
  44 static const char* linePropertyName = "line";
  45 static const char* sourceURLPropertyName = "sourceURL";
  46
  47 JSObject* createError(JSGlobalObject* globalObject, const String& message)
  48 {
  49     ASSERT(!message.isEmpty());
  50     return ErrorInstance::create(globalObject->vm(), globalObject->errorStructure(), message);
  51 }
  52
  53 JSObject* createEvalError(JSGlobalObject* globalObject, const String& message)
  54 {
  55     ASSERT(!message.isEmpty());
  56     return ErrorInstance::create(globalObject->vm(), globalObject->evalErrorConstructor()->errorStructure(), message);
  57 }
  58
  59 JSObject* createRangeError(JSGlobalObject* globalObject, const String& message)
  60 {
  61     ASSERT(!message.isEmpty());
  62     return ErrorInstance::create(globalObject->vm(), globalObject->rangeErrorConstructor()->errorStructure(), message);
  63 }
  64
  65 JSObject* createReferenceError(JSGlobalObject* globalObject, const String& message)
  66 {
  67     ASSERT(!message.isEmpty());
  68     return ErrorInstance::create(globalObject->vm(), globalObject->referenceErrorConstructor()->errorStructure(), message);
  69 }
  70
  71 JSObject* createSyntaxError(JSGlobalObject* globalObject, const String& message)
  72 {
  73     ASSERT(!message.isEmpty());
  74     return ErrorInstance::create(globalObject->vm(), globalObject->syntaxErrorConstructor()->errorStructure(), message);
  75 }
  76
  77 JSObject* createTypeError(JSGlobalObject* globalObject, const String& message)
  78 {
  79     ASSERT(!message.isEmpty());
  80     return ErrorInstance::create(globalObject->vm(), globalObject->typeErrorConstructor()->errorStructure(), message);
  81 }
  82
  83 JSObject* createNotEnoughArgumentsError(JSGlobalObject* globalObject)
  84 {
  85     return createTypeError(globalObject, ASCIILiteral("Not enough arguments"));
  86 }
  87
  88 JSObject* createURIError(JSGlobalObject* globalObject, const String& message)
  89 {
  90     ASSERT(!message.isEmpty());
  91     return ErrorInstance::create(globalObject->vm(), globalObject->URIErrorConstructor()->errorStructure(), message);
  92 }
  93
  94 JSObject* createError(ExecState* exec, const String& message)
  95 {
  96     return createError(exec->lexicalGlobalObject(), message);
  97 }
  98
  99 JSObject* createEvalError(ExecState* exec, const String& message)
 100 {
 101     return createEvalError(exec->lexicalGlobalObject(), message);
 102 }
 103
 104 JSObject* createRangeError(ExecState* exec, const String& message)
 105 {
 106     return createRangeError(exec->lexicalGlobalObject(), message);
 107 }
 108
 109 JSObject* createReferenceError(ExecState* exec, const String& message)
 110 {
 111     return createReferenceError(exec->lexicalGlobalObject(), message);
 112 }
 113
 114 JSObject* createSyntaxError(ExecState* exec, const String& message)
 115 {
 116     return createSyntaxError(exec->lexicalGlobalObject(), message);
 117 }
 118
 119 JSObject* createTypeError(ExecState* exec, const String& message)
 120 {
 121     return createTypeError(exec->lexicalGlobalObject(), message);
 122 }
 123
 124 JSObject* createNotEnoughArgumentsError(ExecState* exec)
 125 {
 126     return createNotEnoughArgumentsError(exec->lexicalGlobalObject());
 127 }
 128
 129 JSObject* createURIError(ExecState* exec, const String& message)
 130 {
 131     return createURIError(exec->lexicalGlobalObject(), message);
 132 }
 133
 134 JSObject* addErrorInfo(CallFrame* callFrame, JSObject* error, int line, const SourceCode& source)
 135 {
 136     VM* vm = &callFrame->vm();
 137     const String& sourceURL = source.provider()->url();
 138
 139     if (line != -1)
 140         error->putDirect(*vm, Identifier(vm, linePropertyName), jsNumber(line), ReadOnly | DontDelete);
 141     if (!sourceURL.isNull())
 142         error->putDirect(*vm, Identifier(vm, sourceURLPropertyName), jsString(vm, sourceURL), ReadOnly | DontDelete);
 143
 144     vm->interpreter->addStackTraceIfNecessary(callFrame, error);
 145
 146     return error;
 147 }
 148
 149
 150 bool hasErrorInfo(ExecState* exec, JSObject* error)
 151 {
 152     return error->hasProperty(exec, Identifier(exec, linePropertyName))
 153         || error->hasProperty(exec, Identifier(exec, sourceURLPropertyName));
 154 }
 155
 156 JSValue throwError(ExecState* exec, JSValue error)
 157 {
 158     Interpreter::addStackTraceIfNecessary(exec, error);
 159     exec->vm().exception = error;
 160     return error;
 161 }
 162
 163 JSObject* throwError(ExecState* exec, JSObject* error)
 164 {
 165     Interpreter::addStackTraceIfNecessary(exec, error);
 166     exec->vm().exception = error;
 167     return error;
 168 }
 169
 170 JSObject* throwTypeError(ExecState* exec)
 171 {
 172     return throwError(exec, createTypeError(exec, ASCIILiteral("Type error")));
 173 }
 174
 175 JSObject* throwSyntaxError(ExecState* exec)
 176 {
 177     return throwError(exec, createSyntaxError(exec, ASCIILiteral("Syntax error")));
 178 }
 179
 180 const ClassInfo StrictModeTypeErrorFunction::s_info = { "Function", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(StrictModeTypeErrorFunction) };
 181
 182 void StrictModeTypeErrorFunction::destroy(JSCell* cell)
 183 {
 184     static_cast<StrictModeTypeErrorFunction*>(cell)->StrictModeTypeErrorFunction::~StrictModeTypeErrorFunction();
 185 }
 186
 187 } // namespace JSC