source: src/ControlStruct/ExceptDecl.cc@ 209dfe2

ADT ast-experimental enum forall-pointer-decay jacob/cs343-translation new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 209dfe2 was 0c730d9, checked in by Henry Xue <y58xue@…>, 4 years ago

Translate exception declarations
  • Property mode set to 100644
File size: 6.7 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2016 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// ExceptDecl.cc --
8//
9// Author : Henry Xue
10// Created On : Tue Jul 20 04:10:50 2021
11// Last Modified By : Henry Xue
12// Last Modified On : Tue Jul 20 04:10:50 2021
13// Update Count : 1
14//
15
16#include "ExceptDecl.h"
17
18#include "Common/PassVisitor.h" // for PassVisitor
19#include "SynTree/Mutator.h" // for mutateAll
20#include "Virtual/Tables.h" // for helpers
21
22namespace ControlStruct {
23
24StructDecl * ehmTypeIdStruct( const std::string & exceptionName, std::list< TypeDecl *> * parameters ) {
25 StructDecl * structDecl = new StructDecl( Virtual::typeIdType( exceptionName ) );
26 structDecl->members.push_back( new ObjectDecl(
27 "parent",
28 noStorageClasses,
29 LinkageSpec::Cforall,
30 nullptr,
31 new PointerType( noQualifiers,
32 new TypeInstType( Type::Const, "__cfavir_type_info", false ) ),
33 nullptr
34 ) );
35 structDecl->set_body( true );
36 if ( parameters ) {
37 structDecl->parameters = *parameters;
38 }
39 return structDecl;
40}
41
42ObjectDecl * ehmTypeIdValue( const std::string & exceptionName, std::list< Expression *> * parameters ) {
43 StructInstType * structInstType = new StructInstType( Type::Const, Virtual::typeIdType( exceptionName ) );
44 if ( parameters ) {
45 structInstType->parameters = *parameters;
46 }
47 return new ObjectDecl(
48 Virtual::typeIdName( exceptionName ),
49 noStorageClasses,
50 LinkageSpec::Cforall,
51 nullptr,
52 structInstType,
53 new ListInit( { new SingleInit(
54 new AddressExpr( new NameExpr( "__cfatid_exception_t" ) )
55 ) }, {}, true ),
56 { new Attribute( "cfa_linkonce" ) }
57 );
58}
59
60StructDecl * ehmExceptionStructDecl( const std::string & exceptionName, std::list< TypeDecl *> * parameters ) {
61 StructDecl * structDecl = new StructDecl( exceptionName );
62 if ( parameters ) {
63 structDecl->parameters = *parameters;
64 }
65 return structDecl;
66}
67
68StructDecl * ehmVirtualTableStruct( const std::string & exceptionName, std::list< TypeDecl *> * parameters ) {
69 // _EHM_TYPE_ID_TYPE(exception_name) parameters const * __cfavir_typeid;
70 ObjectDecl * typeId = new ObjectDecl(
71 "__cfavir_typeid",
72 noStorageClasses,
73 LinkageSpec::Cforall,
74 nullptr,
75 new PointerType( noQualifiers,
76 new StructInstType( Type::Const, Virtual::typeIdType( exceptionName ) ) ),
77 nullptr
78 );
79
80 // size_t size;
81 ObjectDecl * size = new ObjectDecl(
82 "size",
83 noStorageClasses,
84 LinkageSpec::Cforall,
85 nullptr,
86 new TypeInstType( noQualifiers, "size_t", false ),
87 nullptr
88 );
89
90 // void (*copy)(exception_name parameters * this, exception_name parameters * other);
91 FunctionType * copyFnType = new FunctionType( noQualifiers, false );
92 copyFnType->get_parameters().push_back( new ObjectDecl(
93 "this",
94 noStorageClasses,
95 LinkageSpec::Cforall,
96 nullptr,
97 new PointerType( noQualifiers,
98 new TypeInstType( noQualifiers, exceptionName, false ) ),
99 nullptr
100 ) );
101 copyFnType->get_parameters().push_back( new ObjectDecl(
102 "other",
103 noStorageClasses,
104 LinkageSpec::Cforall,
105 nullptr,
106 new PointerType( noQualifiers,
107 new TypeInstType( noQualifiers, exceptionName, false ) ),
108 nullptr
109 ) );
110 copyFnType->get_returnVals().push_back( new ObjectDecl(
111 "",
112 noStorageClasses,
113 LinkageSpec::Cforall,
114 nullptr,
115 new VoidType( noQualifiers ),
116 nullptr
117 ) );
118 ObjectDecl * copy = new ObjectDecl(
119 "copy",
120 noStorageClasses,
121 LinkageSpec::Cforall,
122 nullptr,
123 new PointerType( noQualifiers, copyFnType ),
124 nullptr
125 );
126
127 // void (*^?{})(exception_name parameters & this);
128 FunctionType * dtorFnType = new FunctionType( noQualifiers, false );
129 dtorFnType->get_parameters().push_back( new ObjectDecl(
130 "this",
131 noStorageClasses,
132 LinkageSpec::Cforall,
133 nullptr,
134 new ReferenceType( noQualifiers,
135 new TypeInstType( noQualifiers, exceptionName, false ) ),
136 nullptr
137 ) );
138 dtorFnType->get_returnVals().push_back( new ObjectDecl(
139 "",
140 noStorageClasses,
141 LinkageSpec::Cforall,
142 nullptr,
143 new VoidType( noQualifiers ),
144 nullptr
145 ) );
146 ObjectDecl * dtor = new ObjectDecl(
147 "^?{}",
148 noStorageClasses,
149 LinkageSpec::Cforall,
150 nullptr,
151 new PointerType( noQualifiers, dtorFnType ),
152 nullptr
153 );
154
155 // const char * (*msg)(exception_name parameters * this);
156 FunctionType * msgFnType = new FunctionType( noQualifiers, false );
157 msgFnType->get_parameters().push_back( new ObjectDecl(
158 "this",
159 noStorageClasses,
160 LinkageSpec::Cforall,
161 nullptr,
162 new PointerType( noQualifiers,
163 new TypeInstType( noQualifiers, exceptionName, false ) ),
164 nullptr
165 ) );
166 msgFnType->get_returnVals().push_back( new ObjectDecl(
167 "",
168 noStorageClasses,
169 LinkageSpec::Cforall,
170 nullptr,
171 new PointerType( noQualifiers, new BasicType( Type::Const, BasicType::Char ) ),
172 nullptr
173 ) );
174 ObjectDecl * msg = new ObjectDecl(
175 "msg",
176 noStorageClasses,
177 LinkageSpec::Cforall,
178 nullptr,
179 new PointerType( noQualifiers, msgFnType ),
180 nullptr
181 );
182
183 StructDecl * structDecl = new StructDecl( Virtual::vtableTypeName( exceptionName ) );
184 structDecl->members.push_back( typeId );
185 structDecl->members.push_back( size );
186 structDecl->members.push_back( copy );
187 structDecl->members.push_back( dtor );
188 structDecl->members.push_back( msg );
189 structDecl->set_body( true );
190 if ( parameters ) {
191 structDecl->parameters = *parameters;
192 }
193 return structDecl;
194}
195
196StructDecl * ehmExceptionStruct( const std::string & exceptionName, const std::list<Declaration*> & members,
197 std::list<TypeDecl *> * parameters ) {
198 StructDecl * structDecl = new StructDecl( exceptionName );
199 structDecl->members = members;
200 structDecl->members.push_front( new ObjectDecl(
201 "virtual_table",
202 noStorageClasses,
203 LinkageSpec::Cforall,
204 nullptr,
205 new PointerType( noQualifiers,
206 new StructInstType( Type::Const, Virtual::vtableTypeName( exceptionName ) ) ),
207 nullptr
208 ) );
209 structDecl->set_body( true );
210 if ( parameters ) {
211 structDecl->parameters = *parameters;
212 }
213 return structDecl;
214}
215
216class ExceptDeclCore : public WithDeclsToAdd {
217public:
218 Declaration * postmutate( StructDecl * structDecl );
219};
220
221Declaration * ExceptDeclCore::postmutate( StructDecl * structDecl ) {
222 if ( structDecl->is_exception() ) {
223 const std::string & exceptionName = structDecl->name;
224 declsToAddBefore.push_back( ehmTypeIdStruct( exceptionName, nullptr ) );
225 declsToAddBefore.push_back( ehmTypeIdValue( exceptionName, nullptr ) );
226 declsToAddBefore.push_back( ehmExceptionStructDecl( exceptionName, nullptr ) );
227 declsToAddBefore.push_back( ehmVirtualTableStruct( exceptionName, nullptr ) );
228 return ehmExceptionStruct( exceptionName, structDecl->get_members(), nullptr );
229 }
230 return structDecl;
231}
232
233void translateExcept( std::list< Declaration *> & translationUnit ) {
234 PassVisitor<ExceptDeclCore> translator;
235 mutateAll( translationUnit, translator );
236}
237
238}
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