PTREE MakeDeleteCall( // MAKE A CALL TO 'OPERATOR DELETE'
SYMBOL del_sym, // - symbol for 'op del'
PTREE ptr, // - parm 1 for delete
TYPE class_parm ) // - if non-NULL, use size as second parm
{
PTREE size_arg; // - size argument for call
PTREE args; // - arguments for call
PTREE expr; // - final expression
arg_list *del_args; // - op del arguments
del_args = SymFuncArgList( del_sym );
args = NULL;
if( class_parm != NULL ) {
size_arg = NodeOffset( class_parm->u.c.info->size );
size_arg = NodeConvert( del_args->type_list[1], size_arg );
args = NodeArgument( args, size_arg );
}
ptr = NodeConvert( del_args->type_list[0], ptr );
args = NodeArgument( args, ptr );
expr = NodeMakeCall( del_sym, GetBasicType( TYP_VOID ), NULL );
expr = CallArgsArrange( del_sym->sym_type
, expr
, args
, NULL
, NULL
, NULL );
return expr;
}
static void adjust_by_delta( // COMPUTE DELTA ADJUSTMENT
PTREE *a_expr, // - addr( ptr to be converted )
TYPE base, // - base type
unsigned delta, // - adjustment
bool positive ) // - true ==> use positive value
{
PTREE offset; // - node containing delta
if( delta == 0 ) {
*a_expr = NodeConvert( base, *a_expr );
} else {
offset = NodeOffset( delta );
if( ! positive ) {
offset->u.int_constant = - delta;
}
*a_expr = adjust_base_ptr( *a_expr, offset, base );
}
}
static boolean adjustForVirtualCall( // ADJUSTMENTS FOR POSSIBLE VIRTUAL CALL
PTREE *this_node, // - addr[ "this" node ]
PTREE *routine, // - routine to be called
SEARCH_RESULT *result ) // - search result for routine
{
SYMBOL sym; // - symbol for call
unsigned retn; // - return: TRUE ==> adjusted for virtual
TYPE this_type; // - target type for "this"
PTREE expr; // - transformed expression
boolean exact_call; // - TRUE ==> this node is exact
expr = *this_node;
this_type = NodeType( expr );
this_type = StructType( this_type );
if( this_type != NULL ) {
if( OMR_CLASS_VAL == ObjModelArgument( this_type ) ) {
expr = NodeAssignTemporary( this_type, expr );
} else {
expr = NodeConvert( MakePointerTo( expr->type ), expr );
}
*this_node = expr;
}
sym = (*routine)->u.symcg.symbol;
this_type = TypeThisForCall( expr, sym );
/* virtual calls don't have to check for NULL pointers when they convert */
expr->flags |= PTF_PTR_NONZERO;
exact_call = expr->flags & PTF_MEMORY_EXACT;
NodeConvertToBasePtr( this_node, this_type, result, TRUE );
sym = SymDefaultBase( sym );
if( ( SymIsVirtual( sym ) )
&&( ! ( (*routine)->flags & PTF_COLON_QUALED ) )
&&( ! exact_call ) ) {
expr = AccessVirtualFnAddress( NodeDupExpr( this_node )
, result
, sym );
expr->type = MakePointerTo( expr->type );
*routine = NodeReplace( *routine, expr );
retn = TRUE;
} else {
NodeFreeSearchResult( *routine );
retn = FALSE;
}
return( retn );
}
CNV_RETN NodeConvertPtr( // CONVERT A POINTER
CNVPTR_REQD reqd_cnvptr, // - type of conversion
PTREE *expr, // - expression to be converted
TYPE src, // - source type (converted from)
TYPE tgt ) // - target type (converted to)
{
SCOPE src_scope; // - source scope
SCOPE tgt_scope; // - target scope
CNV_RETN retn = CNV_ERR; // - return: CNV_... indicates what happened
if( same_ptr_types( src, tgt ) ) {
(*expr)->type = src;
return( CNV_OK );
}
src_scope = scope_for_ptr( src );
tgt_scope = scope_for_ptr( tgt );
switch( TypeCommonDerivation( TypePointedAtModified( src )
, TypePointedAtModified( tgt ) ) ) {
case CTD_NO :
if( ptr_to_void( tgt ) ) {
*expr = NodeConvert( tgt, *expr );
retn = check_result_cv( expr, src, tgt, reqd_cnvptr );
} else {
retn = CNV_IMPOSSIBLE;
}
break;
case CTD_RIGHT_PROTECTED :
if( (reqd_cnvptr & CNVPTR_CAST) == 0 ) {
if( reqd_cnvptr & CNVPTR_VIRT_TO_DERIVED ) {
retn = CNV_PROTECTED;
} else {
retn = CNV_IMPOSSIBLE;
}
break;
}
/* fall through */
case CTD_RIGHT_PRIVATE :
if( (reqd_cnvptr & CNVPTR_CAST) == 0 ) {
if( reqd_cnvptr & CNVPTR_VIRT_TO_DERIVED ) {
retn = CNV_PRIVATE;
} else {
retn = CNV_IMPOSSIBLE;
}
break;
}
/* fall through */
case CTD_RIGHT :
if( reqd_cnvptr & CNVPTR_VIRT_TO_DERIVED ) {
NodeConvertBaseToDerived( expr, tgt, tgt_scope, src_scope );
retn = check_result_cv( expr, src, tgt, reqd_cnvptr );
} else {
retn = CNV_IMPOSSIBLE;
}
break;
case CTD_RIGHT_VIRTUAL :
if( reqd_cnvptr & CNVPTR_VIRT_TO_DERIVED ) {
retn = CNV_VIRT_DER;
} else {
retn = CNV_IMPOSSIBLE;
}
break;
case CTD_RIGHT_AMBIGUOUS :
if( reqd_cnvptr & CNVPTR_VIRT_TO_DERIVED ) {
retn = CNV_AMBIGUOUS;
} else {
retn = CNV_IMPOSSIBLE;
}
break;
case CTD_LEFT_PRIVATE :
if( (reqd_cnvptr & CNVPTR_CAST) == 0 ) {
retn = CNV_PRIVATE;
break;
}
/* fall through */
case CTD_LEFT_PROTECTED :
if( (reqd_cnvptr & CNVPTR_CAST) == 0 ) {
retn = CNV_PROTECTED;
break;
}
/* fall through */
case CTD_LEFT :
NodeConvertDerivedToBase( expr, tgt, src_scope, tgt_scope );
retn = check_result_cv( expr, src, tgt, reqd_cnvptr );
break;
case CTD_LEFT_VIRTUAL :
NodeConvertDerivedToVirt( expr, tgt, src_scope, tgt_scope );
retn = check_result_cv( expr, src, tgt, reqd_cnvptr );
break;
case CTD_LEFT_AMBIGUOUS :
retn = CNV_AMBIGUOUS;
break;
}
return( retn );
}
PTREE AnalyseCall( // ANALYSIS FOR CALL
PTREE expr, // - call expression
CALL_DIAG *diagnostic ) // - diagnostics used for function problems
{
PTREE *r_args; // - reference( arguments )
PTREE *r_func; // - reference( function )
PTREE *ptlist; // - nodes for arguments
PTREE left; // - left operand ( the function )
PTREE right; // - right operand ( the arguments )
PTREE this_node; // - node for "this" computation
PTREE deref_args; // - member pointer dereference args
PTREE last_arg; // - last argument
PTREE static_fn_this; // - "this" for a static member
PTREE templ_args; // - explicit template arguments
SYMBOL sym; // - function symbol
SYMBOL caller_sym; // - function that is doing the call
TYPE type; // - temporary type
TYPE fn_type; // - function type
type_flag fn_mod; // - function modifier flags
unsigned count; // - # args, caller
arg_list *alist; // - arg_list for caller
intrinsic_mapping *intr_map;// - mapping for intrinsic function
SEARCH_RESULT *result; // - searching result
boolean membptr_deref; // - TRUE ==> member pointer dereference
boolean has_ellipsis; // - TRUE ==> ellipsis in argument list
boolean virtual_call; // - TRUE ==> virtual call
TEMP_PT_LIST default_list; // - default PTREE list
TEMP_ARG_LIST default_args; // - default arg_list
FNOV_DIAG fnov_diag; // - diagnosis information;
r_args = PTreeRefRight( expr );
last_arg = *r_args;
right = NodeReverseArgs( &count, last_arg );
*r_args = right;
r_func = PTreeRefLeft( expr );
left = *r_func;
membptr_deref = FALSE;
this_node = NULL;
intr_map = NULL;
static_fn_this = NULL;
virtual_call = FALSE;
switch( left->cgop ) {
case CO_DOT:
case CO_ARROW:
this_node = left->u.subtree[0];
left->u.subtree[0] = NULL;
left = NodePruneTop( left );
*r_func = left;
r_func = PTreeRefLeft( expr );
left = *r_func;
if( ( left->op == PT_ID ) && ( left->cgop == CO_NAME_DTOR ) ) {
/* dtor of a non-class type */
left = NodePruneTop( *r_func );
/* NYI: verify dtor call has no arguments */
expr->u.subtree[0] = NULL;
NodeFreeDupedExpr( expr );
expr = NodeConvert( GetBasicType( TYP_VOID ), this_node );
expr = NodeComma( expr, left );
return( expr );
}
break;
case CO_CALL_EXEC_IND:
if( left->flags & PTF_CALLED_ONLY ) {
/* member pointer dereference being called */
deref_args = left->u.subtree[1];
this_node = NodeDupExpr( &(deref_args->u.subtree[1]) );
membptr_deref = TRUE;
}
break;
}
alist = ArgListTempAlloc( &default_args, count );
ptlist = PtListAlloc( default_list, count );
NodeBuildArgList( alist, ptlist, right, count );
if( this_node == NULL ) {
alist->qualifier = FunctionThisQualifier();
} else {
alist->qualifier = BaseTypeClassFlags( NodeType( this_node ) );
}
if( NodeIsBinaryOp( left, CO_TEMPLATE ) ) {
DbgAssert( left->u.subtree[0]->op == PT_SYMBOL );
templ_args = left->u.subtree[1];
left->u.subtree[1] = NULL;
left = NodePruneTop( left );
*r_func = left;
r_func = PTreeRefLeft( expr );
left = *r_func;
} else {
templ_args = NULL;
}
if( left->op == PT_SYMBOL ) {
FNOV_RESULT ovret;
SYMBOL orig; // - original symbol
sym = left->u.symcg.symbol;
orig = sym;
if( left->cgop == CO_NAME_CONVERT ) {
ovret = UdcOverloadedDiag( &sym
, left->u.symcg.result
, sym
, SymFuncReturnType( sym )
, alist->qualifier
, &fnov_diag );
} else {
ovret = FuncOverloadedDiag( &sym
, left->u.symcg.result
, sym
, alist
, ptlist
, templ_args
, &fnov_diag );
}
switch( ovret ) {
case FNOV_AMBIGUOUS :
CallDiagAmbiguous( expr, diagnostic->msg_ambiguous, &fnov_diag );
NodeFreeDupedExpr( this_node );
ArgListTempFree( alist, count );
PtListFree( ptlist, count );
return( expr );
case FNOV_NO_MATCH :
if( this_node == NULL ) {
if( SymIsThisFuncMember( orig ) ) {
this_node = NodeThisCopyLocation( left );
}
}
if( this_node != NULL ) {
if( ( ! SymIsCtor( orig ) )
&&( ! SymIsDtor( orig ) )
&&( CNV_OK != AnalysePtrCV
( this_node
, TypeThisSymbol( orig
, this_node->flags & PTF_LVALUE )
, NodeType( this_node )
, CNV_FUNC_THIS ) ) ) {
PTreeErrorNode( expr );
InfSymbolDeclaration( orig );
NodeFreeDupedExpr( this_node );
ArgListTempFree( alist, count );
PtListFree( ptlist, count );
return( expr );
}
}
CallDiagNoMatch( expr
, diagnostic->msg_no_match_one
, diagnostic->msg_no_match_many
, this_node
, orig
, &fnov_diag );
NodeFreeDupedExpr( this_node );
ArgListTempFree( alist, count );
PtListFree( ptlist, count );
return( expr );
}
FnovFreeDiag( &fnov_diag );
left->u.symcg.symbol = sym;
result = left->u.symcg.result;
if( this_node == NULL ) {
if( SymIsThisFuncMember( sym ) ) {
if( result->use_this ) {
this_node = NodeThisCopyLocation( left );
if( this_node == NULL ) {
PTreeErrorExpr( expr, ERR_INVALID_NONSTATIC_ACCESS );
InfSymbolDeclaration( sym );
ArgListTempFree( alist, count );
PtListFree( ptlist, count );
return( expr );
}
} else {
PTreeErrorExpr( expr, ERR_BARE_FUNCTION_ACCESS );
InfSymbolDeclaration( sym );
ArgListTempFree( alist, count );
PtListFree( ptlist, count );
return( expr );
}
}
}
if( ! AnalyseSymbolAccess( expr, left, this_node, &diagAccess ) ) {
NodeFreeDupedExpr( this_node );
ArgListTempFree( alist, count );
PtListFree( ptlist, count );
return( expr );
}
type = sym->sym_type;
fn_type = TypeGetActualFlags( type, &fn_mod );
if( fn_type->flag & TF1_INTRINSIC ) {
intr_map = intrinsicMapping( sym );
if( intr_map == NULL ) {
outputCallTriggeredWarning( expr, sym );
}
}
if( fn_mod & TF1_FAR16 ) {
/* we are calling a far16 function */
caller_sym = ScopeFunctionInProgress();
caller_sym->flag |= SF_FAR16_CALLER;
}
left->type = type;
if( this_node == NULL ) {
if( SymIsThisFuncMember( sym ) ) {
this_node = NodeThisCopyLocation( left );
}
} else {
if( SymIsStaticFuncMember( sym ) ) {
#ifdef OLD_STATIC_MEMBER_ACCESS
NodeFreeDupedExpr( this_node );
#else
static_fn_this = this_node;
#endif
this_node = NULL;
}
}
if( this_node != NULL ) {
TYPE pted;
pted = TypePointedAtModified( this_node->type );
if( pted == NULL ) {
pted = this_node->type;
}
if( TypeTruncByMemModel( pted ) ) {
if( SymIsCtor( sym ) ) {
PTreeErrorExpr( this_node, ERR_CTOR_OBJ_MEM_MODEL );
} else if( SymIsDtor( sym ) ) {
PTreeErrorExpr( this_node, ERR_DTOR_OBJ_MEM_MODEL );
} else {
PTreeErrorExpr( this_node, ERR_THIS_OBJ_MEM_MODEL );
}
InfSymbolDeclaration( sym );
PTreeErrorNode( expr );
NodeFreeDupedExpr( this_node );
ArgListTempFree( alist, count );
PtListFree( ptlist, count );
NodeFreeDupedExpr( static_fn_this );
return( expr );
}
if( adjustForVirtualCall( &this_node, r_func, result ) ) {
virtual_call = TRUE;
expr->cgop = CO_CALL_EXEC_IND;
left = VfunSetupCall( expr->u.subtree[0] );
left = VfnDecorateCall( left, sym );
} else {
expr->cgop = CO_CALL_EXEC;
left = NodeUnaryCopy( CO_CALL_SETUP, expr->u.subtree[0] );
SymMarkRefed( sym );
}
} else {
NodeFreeSearchResult( left );
expr->cgop = CO_CALL_EXEC;
left = NodeUnaryCopy( CO_CALL_SETUP, expr->u.subtree[0] );
SymMarkRefed( sym );
}
} else {
if( ! membptr_deref ) {
/* i.e, p->foo() where foo is a pointer to a function */
NodeFreeDupedExpr( this_node );
this_node = NULL;
}
sym = NULL;
left = expr->u.subtree[0];
type = TypedefModifierRemove( left->type );
if( type->id == TYP_POINTER ) {
type = type->of;
}
fn_type = TypeGetActualFlags( type, &fn_mod );
if( fn_mod & TF1_FAR16 ) {
/* we are calling a far16 function */
caller_sym = ScopeFunctionInProgress();
caller_sym->flag |= SF_FAR16_CALLER;
}
if( ! TypeHasNumArgs( type, count ) ) {
PTreeErrorExpr( expr, ERR_PARM_COUNT_MISMATCH_POINTER );
CErr2p( INF_FUNCTION_TYPE, type );
ArgListTempFree( alist, count );
PtListFree( ptlist, count );
NodeFreeDupedExpr( static_fn_this );
return( expr );
}
expr->cgop = CO_CALL_EXEC_IND;
left = VfunSetupCall( left );
}
expr->u.subtree[0] = left;
#if _CPU == _AXP
if( intr_map != NULL && intr_map->cgop == CO_VASTART ) {
expr = convertVaStart( expr, alist, type );
} else {
expr = NodeConvertCallArgList( expr, count, type, &expr->u.subtree[1] );
}
#else
expr = NodeConvertCallArgList( expr, count, type, &expr->u.subtree[1] );
#endif
if( expr->op != PT_ERROR ) {
TYPE ftype; // - function type
PTREE cdtor; // - CDTOR node
PTREE callnode; // - call node
PTREE retnnode; // - return node (for struct return)
callnode = expr;
if( this_node == NULL ) {
cdtor = NULL;
} else {
this_node = NodeArg( this_node );
if( virtual_call ) {
this_node->flags |= PTF_ARG_THIS_VFUN;
}
if( sym != NULL && SymIsDtor( sym ) ) {
cdtor = NodeArg( NodeCDtorArg( DTOR_NULL ) );
} else {
cdtor = NULL;
}
}
ftype = type;
type = TypedefModifierRemove( type );
has_ellipsis = TypeHasEllipsisArg( type );
type = type->of;
{
TYPE tgt = TypeReference( type );
if( tgt == NULL ) {
expr->type = type;
} else {
expr->type = tgt;
expr->flags |= PTF_LVALUE;
}
}
if( sym != NULL ) {
if( ! AddDefaultArgs( sym, expr ) ) {
NodeFreeDupedExpr( cdtor );
NodeFreeDupedExpr( this_node );
ArgListTempFree( alist, count );
PtListFree( ptlist, count );
return expr;
}
}
if( NULL != TypeReference( type ) ) {
expr->flags |= PTF_LVALUE;
}
if( OMR_CLASS_REF == ObjModelArgument( type ) ) {
retnnode = NodeTemporary( type );
retnnode = PTreeCopySrcLocation( retnnode, expr );
} else {
retnnode = NULL;
}
expr = CallArgsArrange( ftype
, callnode
, callnode->u.subtree[1]
, this_node
, cdtor
, retnnode );
if( retnnode != NULL ) {
expr = NodeDtorExpr( expr, retnnode->u.symcg.symbol );
if( SymRequiresDtoring( retnnode->u.symcg.symbol ) ) {
expr = PtdCtoredExprType( expr, NULL, type );
}
}
type = StructType( type );
if( type != NULL && ! TypeDefined( type ) ) {
PTreeErrorExpr( expr, ERR_RETURN_UNDEFD_TYPE );
}
if( intr_map != NULL && expr->op != PT_ERROR ) {
#if _CPU == _AXP
if( intr_map->cgop == CO_VASTART ) {
expr = transformVaStart( expr );
} else {
expr = PTreeIntrinsicOperator( expr, intr_map->cgop );
}
#else
expr = PTreeIntrinsicOperator( expr, intr_map->cgop );
#endif
expr->flags |= PTF_MEANINGFUL | PTF_SIDE_EFF;
}
}
if( static_fn_this != NULL ) {
expr = NodeCommaIfSideEffect( static_fn_this, expr );
}
ArgListTempFree( alist, count );
PtListFree( ptlist, count );
return expr;
}
static boolean convertEllipsisArg(// CONVERT AN ELLIPSIS (...) ARGUMENT
PTREE arg ) // - argument
{
boolean retn; // - return: TRUE ==> ok
PTREE right; // - argument
PTREE afun; // - &[ function ]
TYPE type; // - node type
switch( NodeAddrOfFun( PTreeOpRight( arg ), &afun ) ) {
case ADDR_FN_MANY :
case ADDR_FN_MANY_USED :
PTreeErrorExpr( arg->u.subtree[1], ERR_ELLIPSE_ADDR_OVERLOAD );
retn = FALSE;
break;
default :
right = NodeRvalue( arg->u.subtree[1] );
arg->u.subtree[1] = right;
type = TypedefModifierRemove( right->type );
switch( type->id ) {
case TYP_CHAR :
case TYP_SCHAR :
case TYP_UCHAR :
case TYP_SSHORT :
case TYP_WCHAR :
case TYP_USHORT :
type = TypeUnArithResult( type );
right = NodeConvert( type, right );
arg_finish( right, arg );
retn = TRUE;
break;
case TYP_FLOAT :
type = GetBasicType( TYP_DOUBLE );
right = NodeConvert( type, right );
arg_finish( right, arg );
retn = TRUE;
break;
case TYP_ARRAY :
type = PointerTypeForArray( right->type );
right = NodeConvert( type, right );
arg_finish( right, arg );
retn = TRUE;
break;
case TYP_MEMBER_POINTER :
ConvertMembPtrConst( &arg->u.subtree[1] );
arg_fillout( arg );
retn = TRUE;
break;
case TYP_POINTER :
if( NULL == FunctionDeclarationType( type->of ) ) {
type_flag def_flags;
type_flag act_flags;
type_flag arg_flags;
TYPE base_type;
PTREE cnv;
base_type = TypeGetActualFlags( type->of, &arg_flags );
act_flags = arg_flags & TF1_MEM_MODEL;
def_flags = DefaultMemoryFlag( type->of );
if( ( ( def_flags & TF1_FAR )
&&( act_flags != TF1_HUGE )
&&( act_flags != TF1_FAR ) )
||( ( def_flags & TF1_HUGE )
&&( act_flags != TF1_HUGE ) )
) {
type = MakeModifiedType( base_type
, ( arg_flags
& ~TF1_MEM_MODEL )
| def_flags );
type = MakePointerTo( type );
cnv = CastImplicit( arg->u.subtree[1]
, type
, CNV_EXPR
, NULL );
arg->u.subtree[1] = cnv;
DbgVerify( PT_ERROR != cnv->op
, "convertEllipsisArg -- failed ptr.cnv" );
arg_fillout( arg );
retn = TRUE;
} else {
arg_fillout( arg );
retn = TRUE;
}
} else {
arg_fillout( arg );
retn = TRUE;
}
break;
case TYP_CLASS :
retn = passStructOnStack( arg, WARN_ELLIPSIS_CLASS_ARG );
break;
default :
arg_fillout( arg );
retn = TRUE;
break;
}
break;
}
return retn;
}
