source: src/CodeGen/GenType.cc@ 2bae7307

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors ctor deferred_resn demangler enum forall-pointer-decay gc_noraii jacob/cs343-translation jenkins-sandbox memory new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new string with_gc
Last change on this file since 2bae7307 was 843054c2, checked in by Peter A. Buhr <pabuhr@…>, 10 years ago

licencing: seventh groups of files
  • Property mode set to 100644
File size: 5.7 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2015 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// GenType.cc --
8//
9// Author : Richard C. Bilson
10// Created On : Mon May 18 07:44:20 2015
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Mon May 18 23:38:22 2015
13// Update Count : 2
14//
15
16#include <strstream>
17#include <cassert>
18
19#include "GenType.h"
20#include "CodeGenerator2.h"
21#include "SynTree/Visitor.h"
22#include "SynTree/Type.h"
23#include "SynTree/Expression.h"
24
25namespace CodeGen {
26 class GenType : public Visitor {
27 public:
28 GenType( const std::string &typeString );
29 std::string get_typeString() const { return typeString; }
30 void set_typeString( const std::string &newValue ) { typeString = newValue; }
31
32 virtual void visit( FunctionType *funcType );
33 virtual void visit( VoidType *voidType );
34 virtual void visit( BasicType *basicType );
35 virtual void visit( PointerType *pointerType );
36 virtual void visit( ArrayType *arrayType );
37 virtual void visit( StructInstType *structInst );
38 virtual void visit( UnionInstType *unionInst );
39 virtual void visit( EnumInstType *enumInst );
40 virtual void visit( TypeInstType *typeInst );
41
42 private:
43 void handleQualifiers( Type *type );
44 void genArray( const Type::Qualifiers &qualifiers, Type *base, Expression *dimension, bool isVarLen, bool isStatic );
45
46 std::string typeString;
47 };
48
49 std::string genType( Type *type, const std::string &baseString ) {
50 GenType gt( baseString );
51 type->accept( gt );
52 return gt.get_typeString();
53 }
54
55 GenType::GenType( const std::string &typeString ) : typeString( typeString ) {}
56
57 void GenType::visit( VoidType *voidType ) {
58 typeString = "void " + typeString;
59 handleQualifiers( voidType );
60 }
61
62 void GenType::visit( BasicType *basicType ) {
63 BasicType::Kind kind = basicType->get_kind();
64 assert( 0 <= kind && kind < BasicType::NUMBER_OF_BASIC_TYPES );
65 typeString = std::string( BasicType::typeNames[kind] ) + " " + typeString;
66 handleQualifiers( basicType );
67 }
68
69 void GenType::genArray( const Type::Qualifiers &qualifiers, Type *base, Expression *dimension, bool isVarLen, bool isStatic ) {
70 std::ostrstream os;
71 if ( typeString != "" ) {
72 if ( typeString[ 0 ] == '*' ) {
73 os << "(" << typeString << ")";
74 } else {
75 os << typeString;
76 } // if
77 } // if
78 os << "[";
79
80 if ( isStatic ) {
81 os << "static ";
82 } // if
83 if ( qualifiers.isConst ) {
84 os << "const ";
85 } // if
86 if ( qualifiers.isVolatile ) {
87 os << "volatile ";
88 } // if
89 if ( qualifiers.isRestrict ) {
90 os << "__restrict ";
91 } // if
92 if ( qualifiers.isAtomic ) {
93 os << "_Atomic ";
94 } // if
95 if ( isVarLen ) {
96 os << "*";
97 } // if
98 if ( dimension != 0 ) {
99 CodeGenerator2 cg( os );
100 dimension->accept( cg );
101 } // if
102 os << "]";
103
104 typeString = std::string( os.str(), os.pcount() );
105
106 base->accept( *this );
107 }
108
109 void GenType::visit( PointerType *pointerType ) {
110 assert( pointerType->get_base() != 0);
111 if ( pointerType->get_isStatic() || pointerType->get_isVarLen() || pointerType->get_dimension() ) {
112 genArray( pointerType->get_qualifiers(), pointerType->get_base(), pointerType->get_dimension(), pointerType->get_isVarLen(), pointerType->get_isStatic() );
113 } else {
114 handleQualifiers( pointerType );
115 if ( typeString[ 0 ] == '?' ) {
116 typeString = "* " + typeString;
117 } else {
118 typeString = "*" + typeString;
119 } // if
120 pointerType->get_base()->accept( *this );
121 } // if
122 }
123
124 void GenType::visit( ArrayType *arrayType ) {
125 genArray( arrayType->get_qualifiers(), arrayType->get_base(), arrayType->get_dimension(), arrayType->get_isVarLen(), arrayType->get_isStatic() );
126 }
127
128 void GenType::visit( FunctionType *funcType ) {
129 std::ostrstream os;
130
131 if ( typeString != "" ) {
132 if ( typeString[ 0 ] == '*' ) {
133 os << "(" << typeString << ")";
134 } else {
135 os << typeString;
136 } // if
137 } // if
138
139 /************* parameters ***************/
140
141 const std::list<DeclarationWithType *> &pars = funcType->get_parameters();
142
143 if ( pars.empty() ) {
144 if ( funcType->get_isVarArgs() ) {
145 os << "()";
146 } else {
147 os << "(void)";
148 } // if
149 } else {
150 CodeGenerator2 cg( os );
151 os << "(" ;
152
153 cg.genCommaList( pars.begin(), pars.end() );
154
155 if ( funcType->get_isVarArgs() ) {
156 os << ", ...";
157 } // if
158 os << ")";
159 } // if
160
161 typeString = std::string( os.str(), os.pcount() );
162
163 if ( funcType->get_returnVals().size() == 0 ) {
164 typeString = "void " + typeString;
165 } else {
166 funcType->get_returnVals().front()->get_type()->accept( *this );
167 } // if
168 }
169
170 void GenType::visit( StructInstType *structInst ) {
171 typeString = "struct " + structInst->get_name() + " " + typeString;
172 handleQualifiers( structInst );
173 }
174
175 void GenType::visit( UnionInstType *unionInst ) {
176 typeString = "union " + unionInst->get_name() + " " + typeString;
177 handleQualifiers( unionInst );
178 }
179
180 void GenType::visit( EnumInstType *enumInst ) {
181 typeString = "enum " + enumInst->get_name() + " " + typeString;
182 handleQualifiers( enumInst );
183 }
184
185 void GenType::visit( TypeInstType *typeInst ) {
186 typeString = typeInst->get_name() + " " + typeString;
187 handleQualifiers( typeInst );
188 }
189
190 void GenType::handleQualifiers( Type *type ) {
191 if ( type->get_isConst() ) {
192 typeString = "const " + typeString;
193 } // if
194 if ( type->get_isVolatile() ) {
195 typeString = "volatile " + typeString;
196 } // if
197 if ( type->get_isRestrict() ) {
198 typeString = "__restrict " + typeString;
199 } // if
200 if ( type->get_isAtomic() ) {
201 typeString = "_Atomic " + typeString;
202 } // if
203 }
204} // namespace CodeGen
205
206// Local Variables: //
207// tab-width: 4 //
208// mode: c++ //
209// compile-command: "make install" //
210// End: //
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