131 lines
3.1 KiB
C++
131 lines
3.1 KiB
C++
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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Copyright (c) 1989-1999 Microsoft Corporation
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Module Name:
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stgen.cxx
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Abstract:
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structure marshalling / unmarshalling stuff.
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Notes:
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History:
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Dec-15-1993 VibhasC Created.
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----------------------------------------------------------------------------*/
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/****************************************************************************
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* include files
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***************************************************************************/
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#include "becls.hxx"
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#pragma hdrstop
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/****************************************************************************
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* local definitions
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***************************************************************************/
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/****************************************************************************
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* local data
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***************************************************************************/
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/****************************************************************************
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* externs
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***************************************************************************/
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/****************************************************************************/
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CG_STATUS
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CG_COMP::S_GenInitOutLocals(
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CCB * pCCB )
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{
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char Buffer[ 256 ];
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RESOURCE * pResource;
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PNAME p;
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CG_NDR * pLPC = pCCB->GetLastPlaceholderClass();
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sprintf( Buffer, "%s", pLPC->GetType()->GetSymName() );
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p = pCCB->GenTRNameOffLastParam( Buffer );
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pResource = pCCB->GetLocalResource( p );
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// There is a pointer for the top level structure.
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Out_Assign( pCCB,
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pCCB->GetSourceExpression(),
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MakeAddressExpressionNoMatterWhat( pResource )
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);
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// Go zero out the pointers in the structure, for now.
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if( HasPointer() )
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{
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ITERATOR I;
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CG_FIELD * pCG;
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expr_node * pSrc = pCCB->GetSourceExpression();
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// Get all the members in the struct which contain pointers. If the
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// structure has been unrolled by the format string generator, the
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// print prefix contains the proper prefixed part of the unrolled path,
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// we just have to add the field name to it.
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GetPointerMembers( I );
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while( ITERATOR_GETNEXT( I, pCG ) )
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{
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char * pVarName =
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new char[ strlen( ((CG_FIELD *)pCG)->GetPrintPrefix())+
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strlen( pCG->GetType()->GetSymName()) +
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1
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];
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strcpy( pVarName, ((CG_FIELD *)pCG)->GetPrintPrefix() );
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strcat( pVarName, pCG->GetType()->GetSymName() );
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expr_node * pExpr = new expr_pointsto(
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pSrc,
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new expr_variable( pVarName, 0 ));
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expr_node * pAss = new expr_assign(pExpr, new expr_constant(0L));
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pCCB->GetStream()->NewLine();
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pAss->PrintCall( pCCB->GetStream(), 0, 0 );
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pCCB->GetStream()->Write(';');
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// this memory area is no longer useful.
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delete pVarName;
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}
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}
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return CG_OK;
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}
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short
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CG_COMP::GetPointerMembers(
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ITERATOR& I )
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{
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CG_ITERATOR M;
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CG_FIELD * pField;
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short Count = 0;
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if( HasPointer() )
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{
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GetMembers( M );
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while( ITERATOR_GETNEXT( M, pField ) )
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{
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if( pField->GetChild()->IsPointer() )
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{
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ITERATOR_INSERT( I, pField );
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Count++;
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}
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}
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}
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return Count;
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}
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