457 lines
10 KiB
C++
457 lines
10 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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fldcls.hxx
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Abstract:
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Contains definitions for base type related code generation class
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definitions.
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Notes:
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History:
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GregJen Sep-30-1993 Created.
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----------------------------------------------------------------------------*/
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#ifndef __FLDCLS_HXX__
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#define __FLDCLS_HXX__
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#pragma warning ( disable : 4238 4239 )
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#include "nulldefs.h"
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extern "C"
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{
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#include <stdio.h>
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}
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#include "ndrcls.hxx"
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//
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// This class corresponds to a structure field type.
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//
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class CG_FIELD : public CG_NDR, public CG_CLONEABLE
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{
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private:
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unsigned long MemOffset;
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unsigned long WireOffset;
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// These two are union specific.
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expr_node * pSwitchExpr;
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// Used to hold a union field's format string offset.
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long UnionFormatStringOffset;
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//
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// All this is used to help fixed imbeded struct's with pointers.
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//
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BOOL fClonedField : 1;
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BOOL fSizeIsDone : 1;
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BOOL fIsRegionField : 1;
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// more stuff for embedded unknown represent_as
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BOOL fEmbeddedUnknownRepAs : 1;
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char * PrintPrefix;
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expr_node * pSizeExpression;
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CG_STRUCT * pRegionHint;
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public:
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//
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// The constructor.
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//
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CG_FIELD(
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node_skl * pBT, // base type
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XLAT_SIZE_INFO & Info // memory offset etc
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) :
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CG_NDR( pBT, Info )
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{
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MemOffset = Info.GetMemOffset();
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WireOffset = Info.GetWireOffset();
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pSwitchExpr = NULL;
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UnionFormatStringOffset = -1;
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SetSizeIsDone( FALSE );
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fIsRegionField = FALSE;
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fClonedField = FALSE;
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PrintPrefix = "";
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fEmbeddedUnknownRepAs = FALSE;
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SetSizeExpression( NULL );
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pRegionHint = NULL;
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}
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CG_FIELD( const CG_FIELD & Field ) :
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CG_NDR( (CG_NDR &)Field )
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{
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MemOffset = Field.MemOffset;
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WireOffset = Field.MemOffset;
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pSwitchExpr = Field.pSwitchExpr;
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UnionFormatStringOffset = Field.UnionFormatStringOffset;
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fEmbeddedUnknownRepAs = Field.fEmbeddedUnknownRepAs;
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pSizeExpression = Field.pSizeExpression;
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fClonedField = TRUE;
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fSizeIsDone = FALSE;
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fIsRegionField = Field.fIsRegionField;
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// Make a new copy of the PrintPrefix field.
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PrintPrefix = new char[
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strlen( Field.GetPrintPrefix() ) + 1];
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strcpy( PrintPrefix, Field.GetPrintPrefix() );
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pRegionHint = Field.GetRegionHint();
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}
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CG_CLASS * Clone()
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{
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return new CG_FIELD( *this );
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}
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virtual
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ID_CG GetCGID()
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{
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return ID_CG_FIELD;
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}
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virtual
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void Visit( CG_VISITOR *pVisitor )
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{
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pVisitor->Visit( this );
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}
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//
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// Generate typeinfo
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//
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virtual
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CG_STATUS GenTypeInfo( CCB * pCCB);
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//
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// Get and set methods.
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//
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// make sure the ZP gets set along the way
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virtual
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void SetSizesAndAlignments( XLAT_SIZE_INFO & Info )
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{
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CG_NDR::SetSizesAndAlignments( Info );
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MemOffset = Info.GetMemOffset();
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WireOffset = Info.GetWireOffset();
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}
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unsigned long GetMemOffset()
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{
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return MemOffset;
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}
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void SetMemOffset( unsigned long offset )
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{
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MemOffset = offset;
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}
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unsigned long GetWireOffset()
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{
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return WireOffset;
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}
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void SetWireOffset( unsigned long offset )
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{
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WireOffset = offset;
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}
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expr_node * SetSwitchExpr( expr_node * pE )
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{
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return (pSwitchExpr = pE);
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}
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expr_node * GetSwitchExpr()
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{
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return pSwitchExpr;
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}
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BOOL IsClonedField()
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{
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return fClonedField;
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}
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BOOL SetHasEmbeddedUnknownRepAs()
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{
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return (BOOL) (fEmbeddedUnknownRepAs = TRUE);
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}
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BOOL HasEmbeddedUnknownRepAs()
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{
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return (BOOL) fEmbeddedUnknownRepAs;
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}
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void SetSizeIsDone( BOOL b )
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{
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fSizeIsDone = b;
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}
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BOOL GetSizeIsDone()
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{
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//
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// If this is a cloned field then we return
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// the fSizeIsDone flag, otherwise we always
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// return FALSE.
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//
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if ( IsClonedField() )
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return fSizeIsDone;
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else
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return FALSE;
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}
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void AddPrintPrefix( char * Prefix )
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{
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char * OldPrefix;
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OldPrefix = PrintPrefix;
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PrintPrefix = new char[ strlen(PrintPrefix) +
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strlen(Prefix) + 2 ];
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//
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// We add the new print prefix to the
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// BEGINNING of the prefix string and we insert
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// a '.' in between.
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//
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strcpy( PrintPrefix, Prefix );
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strcat( PrintPrefix, "." );
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strcat( PrintPrefix, OldPrefix );
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}
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char * GetPrintPrefix() const
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{
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return PrintPrefix;
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}
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void SetUnionFormatStringOffset( long offset )
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{
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UnionFormatStringOffset = offset;
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}
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long GetUnionFormatStringOffset()
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{
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return UnionFormatStringOffset;
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}
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expr_node * SetSizeExpression( expr_node * pE )
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{
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return (pSizeExpression = pE);
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}
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expr_node * GetSizeExpression()
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{
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return pSizeExpression;
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}
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virtual
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BOOL HasAFixedBufferSize()
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{
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return (GetChild()->HasAFixedBufferSize());
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}
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BOOL IsRegionField() const
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{
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return fIsRegionField;
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}
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void SetIsRegionField()
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{
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fIsRegionField = TRUE;
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}
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CG_STRUCT * GetRegionHint() const
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{
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return pRegionHint;
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}
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void SetRegionHint( CG_STRUCT *pHint )
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{
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pRegionHint = pHint;
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}
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};
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//
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// This class corresponds to a union field type.
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//
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class CG_UNION_FIELD : public CG_FIELD
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{
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private:
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public:
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//
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// The constructor.
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//
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CG_UNION_FIELD(
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node_skl * pBT, // base type
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XLAT_SIZE_INFO & Info
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) :
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CG_FIELD( pBT, Info )
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{
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}
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virtual
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ID_CG GetCGID()
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{
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return ID_CG_UNION_FIELD;
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}
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virtual
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void Visit( CG_VISITOR *pVisitor )
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{
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pVisitor->Visit( this );
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}
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virtual
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CG_CLASS* Clone()
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{
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return new CG_UNION_FIELD( *this );
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}
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};
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//
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// This class corresponds to a union case
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//
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class CG_CASE : public CG_NDR, public CG_CLONEABLE
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{
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private:
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expr_node * pExpr;
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BOOL fLastCase; // last case for this arm
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public:
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//
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// The constructor.
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//
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CG_CASE(
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node_skl * pBT, // expression type
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expr_node * pE // expression
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) :
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CG_NDR( pBT, XLAT_SIZE_INFO() )
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{
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SetExpr( pE );
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fLastCase = FALSE;
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}
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virtual
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CG_STATUS GenTypeInfo(CCB *pCCB);
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virtual
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ID_CG GetCGID()
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{
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return ID_CG_CASE;
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}
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virtual
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CG_CLASS* Clone()
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{
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return new CG_CASE( *this );
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}
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virtual
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void Visit( CG_VISITOR *pVisitor )
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{
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pVisitor->Visit( this );
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}
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//
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// Get and set methods.
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//
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expr_node * SetExpr( expr_node * pE )
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{
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return (pExpr = pE);
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}
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expr_node * GetExpr()
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{
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return pExpr;
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}
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BOOL SetLastCase( BOOL Flag )
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{
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return (fLastCase = Flag);
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}
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BOOL FLastCase()
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{
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return fLastCase;
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}
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};
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//
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// This class corresponds to a union default case
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//
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class CG_DEFAULT_CASE : public CG_CASE
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{
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private:
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public:
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//
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// The constructor.
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//
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CG_DEFAULT_CASE(
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node_skl * pBT // expression type
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) :
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CG_CASE( pBT, NULL )
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{
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}
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virtual
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ID_CG GetCGID()
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{
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return ID_CG_DEFAULT_CASE;
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}
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virtual
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void Visit( CG_VISITOR *pVisitor )
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{
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pVisitor->Visit( this );
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}
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virtual
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CG_CLASS* Clone()
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{
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return new CG_DEFAULT_CASE( *this );
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}
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//
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// Get and set methods.
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//
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};
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#endif // __FLDCLS_HXX__
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