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/************ Xobject C++ Functions Source Code File (.CPP) ************/
/* Name: XOBJECT.CPP Version 2.2 */
/* */
/* (C) Copyright to the author Olivier BERTRAND 1998-2012 */
/* */
/* This file contains base XOBJECT class functions. */
/* Also here is the implementation of the CONSTANT class. */
/***********************************************************************/
/***********************************************************************/
/* Include mariaDB header file. */
/***********************************************************************/
#include "my_global.h"
/***********************************************************************/
/* Include required application header files */
/* global.h is header containing all global Plug declarations. */
/* plgdbsem.h is header containing the DB applic. declarations. */
/***********************************************************************/
#include "global.h"
#include "plgdbsem.h"
#include "xobject.h"
/***********************************************************************/
/* Macro definitions. */
/***********************************************************************/
#if defined(_DEBUG) || defined(DEBTRACE)
#define ASSERT(B) assert(B);
#else
#define ASSERT(B)
#endif
/***********************************************************************/
/* The one and only needed void object. */
/***********************************************************************/
XVOID Xvoid;
PXOB const pXVOID = &Xvoid; // Pointer used by other classes
/* ------------------------- Class XOBJECT --------------------------- */
/***********************************************************************/
/* GetCharValue: returns the Result value as a char string. */
/* Using GetCharValue provides no conversion from numeric types. */
/***********************************************************************/
PSZ XOBJECT::GetCharValue(void)
{
ASSERT(Value)
return Value->GetCharValue();
} // end of GetCharValue()
/***********************************************************************/
/* GetShortValue: returns the Result value as a short integer. */
/***********************************************************************/
short XOBJECT::GetShortValue(void)
{
ASSERT(Value)
return Value->GetShortValue();
} // end of GetShortValue
/***********************************************************************/
/* GetIntValue: returns the Result value as a int integer. */
/***********************************************************************/
int XOBJECT::GetIntValue(void)
{
ASSERT(Value)
return Value->GetIntValue();
} // end of GetIntValue
/***********************************************************************/
/* GetFloatValue: returns the Result value as a double float. */
/***********************************************************************/
double XOBJECT::GetFloatValue(void)
{
ASSERT(Value)
return Value->GetFloatValue();
} // end of GetFloatValue
/* ------------------------- Class CONSTANT -------------------------- */
/***********************************************************************/
/* CONSTANT public constructor. */
/***********************************************************************/
CONSTANT::CONSTANT(PGLOBAL g, void *value, short type)
{
if (!(Value = AllocateValue(g, value, (int)type)))
longjmp(g->jumper[g->jump_level], TYPE_CONST);
Constant = true;
} // end of CONSTANT constructor
/***********************************************************************/
/* CONSTANT public constructor. */
/***********************************************************************/
CONSTANT::CONSTANT(PGLOBAL g, int n)
{
if (!(Value = AllocateValue(g, &n, TYPE_INT)))
longjmp(g->jumper[g->jump_level], TYPE_CONST);
Constant = true;
} // end of CONSTANT constructor
/***********************************************************************/
/* GetLengthEx: returns an evaluation of the constant string length. */
/* Note: When converting from token to string, length has to be */
/* specified but we need the domain length, not the value length. */
/***********************************************************************/
int CONSTANT::GetLengthEx(void)
{
return Value->GetValLen();
} // end of GetLengthEx
/***********************************************************************/
/* Convert a constant to the given type. */
/***********************************************************************/
void CONSTANT::Convert(PGLOBAL g, int newtype)
{
if (Value->GetType() != newtype)
if (!(Value = AllocateValue(g, Value, newtype)))
longjmp(g->jumper[g->jump_level], TYPE_CONST);
} // end of Convert
/***********************************************************************/
/* Compare: returns true if this object is equivalent to xp. */
/***********************************************************************/
bool CONSTANT::Compare(PXOB xp)
{
if (this == xp)
return true;
else if (xp->GetType() != TYPE_CONST)
return false;
else
return Value->IsEqual(xp->GetValue(), true);
} // end of Compare
/***********************************************************************/
/* Rephrase: temporary implementation used by PlugRephraseSQL. */
/***********************************************************************/
bool CONSTANT::Rephrase(PGLOBAL g, PSZ work)
{
switch (Value->GetType()) {
case TYPE_STRING:
sprintf(work + strlen(work), "'%s'", Value->GetCharValue());
break;
case TYPE_SHORT:
sprintf(work + strlen(work), "%hd", Value->GetShortValue());
break;
case TYPE_INT:
case TYPE_DATE:
sprintf(work + strlen(work), "%d", Value->GetIntValue());
break;
case TYPE_FLOAT:
sprintf(work + strlen(work), "%lf", Value->GetFloatValue());
break;
case TYPE_BIGINT:
sprintf(work + strlen(work), "%lld", Value->GetBigintValue());
break;
case TYPE_TINY:
sprintf(work + strlen(work), "%d", Value->GetTinyValue());
break;
default:
sprintf(g->Message, MSG(BAD_CONST_TYPE), Value->GetType());
return false;
} // endswitch
return false;
} // end of Rephrase
/***********************************************************************/
/* Make file output of a constant object. */
/***********************************************************************/
void CONSTANT::Print(PGLOBAL g, FILE *f, uint n)
{
Value->Print(g, f, n);
} /* end of Print */
/***********************************************************************/
/* Make string output of a constant object. */
/***********************************************************************/
void CONSTANT::Print(PGLOBAL g, char *ps, uint z)
{
Value->Print(g, ps, z);
} /* end of Print */
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