root/core/ErrorClass.cpp

DEFINITIONS

1. throwError
2. getStackTrace
3. getErrorMessage
4. createInstance

/* ***** BEGIN LICENSE BLOCK *****
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 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
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 * The Original Code is [Open Source Virtual Machine.].
 *
 * The Initial Developer of the Original Code is
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 *   Adobe AS3 Team
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#include "avmplus.h"
#include "BuiltinNatives.h"

namespace avmplus
{
        ErrorClass::ErrorClass(VTable* cvtable)
                : ClassClosure(cvtable)
        {
                AvmAssert(traits()->getSizeOfInstance() == sizeof(ErrorClass));

                prototype = createInstance(ivtable(), toplevel()->objectClass->prototype);
        }
        
        /**
         * ErrorObject
         */
        ErrorObject::ErrorObject(VTable* vtable,
                                                         ScriptObject *delegate)
                : ScriptObject(vtable, delegate)
        {
                AvmAssert(traits()->getSizeOfInstance() == sizeof(ErrorObject));

                #ifdef DEBUGGER
                AvmCore *core = this->core();
                if (!core->debugger())
                        return;
                // Copy the stack trace
                stackTrace = core->newStackTrace();
                #endif
        }

        void ErrorClass::throwError(int errorID, Stringp arg1, Stringp arg2, Stringp arg3)
        {
                core()->throwErrorV(this, errorID, arg1, arg2, arg3);
        }

        Stringp ErrorObject::getStackTrace() const
        {
                #ifdef DEBUGGER
                AvmCore* core = this->core();
                if (!core->debugger())
                        return NULL;

                // getStackTrace returns the concatenation of the
                // error message and the stack trace
                Stringp buffer = core->string(atom());
                buffer = core->concatStrings(buffer, core->newConstantStringLatin1("\n"));

                if (stackTrace) {
                        buffer = core->concatStrings(buffer, stackTrace->format(core));
                }

                return buffer;
                #else
                return NULL;
                #endif
        }

        Stringp ErrorClass::getErrorMessage(int errorID) const
        {
                return this->core()->getErrorMessage(errorID);
        }

        ScriptObject* ErrorClass::createInstance(VTable *ivtable,
                                                                                         ScriptObject *prototype)
        {
                return new (ivtable->gc(), ivtable->getExtraSize()) ErrorObject(ivtable, prototype);
        }

        /**
         * NativeErrorClass
         */

        NativeErrorClass::NativeErrorClass(VTable* cvtable)
                : ClassClosure(cvtable)
        {
                AvmAssert(traits()->getSizeOfInstance() == sizeof(ErrorClass));
                createVanillaPrototype();
        }
}