| 1 | //
|
|---|
| 2 | // Cforall Version 1.0.0 Copyright (C) 2018 University of Waterloo
|
|---|
| 3 | //
|
|---|
| 4 | // The contents of this file are covered under the licence agreement in the
|
|---|
| 5 | // file "LICENCE" distributed with Cforall.
|
|---|
| 6 | //
|
|---|
| 7 | // FindSpecialDecls.cc --
|
|---|
| 8 | //
|
|---|
| 9 | // Author : Rob Schluntz
|
|---|
| 10 | // Created On : Thu Aug 30 09:49:43 2018
|
|---|
| 11 | // Last Modified By : Rob Schluntz
|
|---|
| 12 | // Last Modified On : Thu Aug 30 09:55:25 2018
|
|---|
| 13 | // Update Count : 2
|
|---|
| 14 | //
|
|---|
| 15 |
|
|---|
| 16 | #include "FindSpecialDecls.h"
|
|---|
| 17 |
|
|---|
| 18 | #include "Common/PassVisitor.h"
|
|---|
| 19 | #include "SynTree/Declaration.h"
|
|---|
| 20 | #include "SynTree/Type.h"
|
|---|
| 21 |
|
|---|
| 22 | // NOTE: currently, it is assumed that every special declaration occurs at the top-level,
|
|---|
| 23 | // so function bodies, aggregate bodies, object initializers, etc. are not visited.
|
|---|
| 24 | // If this assumption changes, e.g., with the introduction of namespaces, remove the visit_children assignments.
|
|---|
| 25 |
|
|---|
| 26 | namespace Validate {
|
|---|
| 27 | Type * SizeType = nullptr;
|
|---|
| 28 | FunctionDecl * dereferenceOperator = nullptr;
|
|---|
| 29 | StructDecl * dtorStruct = nullptr;
|
|---|
| 30 | FunctionDecl * dtorStructDestroy = nullptr;
|
|---|
| 31 |
|
|---|
| 32 | namespace {
|
|---|
| 33 | struct FindSpecialDecls final : public WithShortCircuiting {
|
|---|
| 34 | void previsit( ObjectDecl * objDecl );
|
|---|
| 35 | void previsit( FunctionDecl * funcDecl );
|
|---|
| 36 | void previsit( StructDecl * structDecl );
|
|---|
| 37 | void previsit( UnionDecl * unionDecl );
|
|---|
| 38 | void previsit( EnumDecl * enumDecl );
|
|---|
| 39 | void previsit( TraitDecl * traitDecl );
|
|---|
| 40 | };
|
|---|
| 41 | } // namespace
|
|---|
| 42 |
|
|---|
| 43 | void findSpecialDecls( std::list< Declaration * > &translationUnit ) {
|
|---|
| 44 | PassVisitor<FindSpecialDecls> finder;
|
|---|
| 45 | acceptAll( translationUnit, finder );
|
|---|
| 46 | // TODO: conditionally generate 'fake' declarations for missing features, so that
|
|---|
| 47 | // translation can proceed in the event that builtins, prelude, etc. are missing.
|
|---|
| 48 | }
|
|---|
| 49 |
|
|---|
| 50 | namespace {
|
|---|
| 51 | void FindSpecialDecls::previsit( ObjectDecl * ) {
|
|---|
| 52 | visit_children = false;
|
|---|
| 53 | }
|
|---|
| 54 |
|
|---|
| 55 | void FindSpecialDecls::previsit( FunctionDecl * funcDecl ) {
|
|---|
| 56 | visit_children = false;
|
|---|
| 57 | if ( ! dereferenceOperator && funcDecl->name == "*?" && funcDecl->linkage == LinkageSpec::Intrinsic ) {
|
|---|
| 58 | // find and remember the intrinsic dereference operator for object pointers
|
|---|
| 59 | FunctionType * ftype = funcDecl->type;
|
|---|
| 60 | if ( ftype->parameters.size() == 1 ) {
|
|---|
| 61 | PointerType * ptrType = strict_dynamic_cast<PointerType *>( ftype->parameters.front()->get_type() );
|
|---|
| 62 | if ( ptrType->base->get_qualifiers() == Type::Qualifiers() ) {
|
|---|
| 63 | TypeInstType * inst = dynamic_cast<TypeInstType *>( ptrType->base );
|
|---|
| 64 | if ( inst && ! inst->get_isFtype() ) {
|
|---|
| 65 | dereferenceOperator = funcDecl;
|
|---|
| 66 | }
|
|---|
| 67 | }
|
|---|
| 68 | }
|
|---|
| 69 | } else if ( ! dtorStructDestroy && funcDecl->name == "__destroy_Destructor" ) {
|
|---|
| 70 | dtorStructDestroy = funcDecl;
|
|---|
| 71 | }
|
|---|
| 72 | }
|
|---|
| 73 |
|
|---|
| 74 | void FindSpecialDecls::previsit( StructDecl * structDecl ) {
|
|---|
| 75 | visit_children = false;
|
|---|
| 76 | if ( ! dtorStruct && structDecl->name == "__Destructor" ) {
|
|---|
| 77 | dtorStruct = structDecl;
|
|---|
| 78 | }
|
|---|
| 79 | }
|
|---|
| 80 |
|
|---|
| 81 | void FindSpecialDecls::previsit( UnionDecl * ) {
|
|---|
| 82 | visit_children = false;
|
|---|
| 83 | }
|
|---|
| 84 |
|
|---|
| 85 | void FindSpecialDecls::previsit( EnumDecl * ) {
|
|---|
| 86 | visit_children = false;
|
|---|
| 87 | }
|
|---|
| 88 |
|
|---|
| 89 | void FindSpecialDecls::previsit( TraitDecl * ) {
|
|---|
| 90 | visit_children = false;
|
|---|
| 91 | }
|
|---|
| 92 |
|
|---|
| 93 | } // namespace
|
|---|
| 94 | } // namespace Validate
|
|---|
| 95 |
|
|---|
| 96 | // Local Variables: //
|
|---|
| 97 | // tab-width: 4 //
|
|---|
| 98 | // mode: c++ //
|
|---|
| 99 | // compile-command: "make install" //
|
|---|
| 100 | // End: //
|
|---|
