125 lines
2.3 KiB
C++
125 lines
2.3 KiB
C++
/** \file gameengine/Expressions/ErrorValue.cpp
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* \ingroup expressions
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*/
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// ErrorValue.cpp: implementation of the CErrorValue class.
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/*
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* Copyright (c) 1996-2000 Erwin Coumans <coockie@acm.org>
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Erwin Coumans makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*/
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#include "ErrorValue.h"
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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CErrorValue::CErrorValue()
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/*
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pre:
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effect: constructs a new CErrorValue containing errormessage "Error"
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*/
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{
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m_strErrorText = "Error";
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SetError(true);
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}
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CErrorValue::CErrorValue(const char *errmsg)
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/*
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pre:
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effect: constructs a new CErrorValue containing errormessage errmsg
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*/
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{
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m_strErrorText = "[";
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m_strErrorText += errmsg;
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m_strErrorText += "]";
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SetError(true);
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}
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CErrorValue::~CErrorValue()
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/*
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pre:
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effect: deletes the object
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*/
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{
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}
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CValue* CErrorValue::Calc(VALUE_OPERATOR op, CValue *val)
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/*
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pre:
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ret: a new object containing the result of applying operator op to this
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object and val
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*/
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{
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CValue* errorval;
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switch (op)
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{
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case VALUE_POS_OPERATOR:
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case VALUE_NEG_OPERATOR:
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case VALUE_NOT_OPERATOR:
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{
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errorval = new CErrorValue (op2str(op) + GetText());
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break;
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}
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default:
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{
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errorval = val->CalcFinal(VALUE_ERROR_TYPE, op, this);
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break;
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}
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}
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return errorval;
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}
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CValue* CErrorValue::CalcFinal(VALUE_DATA_TYPE dtype, VALUE_OPERATOR op, CValue *val)
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/*
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pre: the type of val is dtype
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ret: a new object containing the result of applying operator op to val and
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this object
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*/
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{
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return new CErrorValue (val->GetText() + op2str(op) + GetText());
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}
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double CErrorValue::GetNumber()
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{
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return -1;
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}
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const STR_String & CErrorValue::GetText()
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{
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return m_strErrorText;
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}
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CValue* CErrorValue::GetReplica()
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{
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// who would want a copy of an error ?
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trace ("Error: ErrorValue::GetReplica() not implemented yet");
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assertd(false);
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return NULL;
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}
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