source: src/GenPoly/GenPoly.cc@ 35304009

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 35304009 was 5f6c42c, checked in by Aaron Moss <a3moss@…>, 10 years ago

Merge changes from Peter

  • Property mode set to 100644
File size: 4.5 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// GenPoly.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 : Tue Dec 15 16:11:18 2015
13// Update Count : 13
14//
15
16#include "GenPoly.h"
17
18#include "SymTab/Mangler.h"
19#include "SynTree/Expression.h"
20#include "SynTree/Type.h"
21
22#include <iostream>
23using namespace std;
24
25namespace GenPoly {
26 bool needsAdapter( FunctionType *adaptee, const TyVarMap &tyVars ) {
27 if ( ! adaptee->get_returnVals().empty() && isPolyType( adaptee->get_returnVals().front()->get_type(), tyVars ) ) {
28 return true;
29 } // if
30 for ( std::list< DeclarationWithType* >::const_iterator innerArg = adaptee->get_parameters().begin(); innerArg != adaptee->get_parameters().end(); ++innerArg ) {
31 if ( isPolyType( (*innerArg)->get_type(), tyVars ) ) {
32 return true;
33 } // if
34 } // for
35 return false;
36 }
37
38 bool isPolyRet( FunctionType *function, std::string &name, const TyVarMap &otherTyVars ) {
39 bool doTransform = false;
40 if ( ! function->get_returnVals().empty() ) {
41 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( function->get_returnVals().front()->get_type() ) ) {
42
43 // figure out if the return type is specified by a type parameter
44 for ( std::list< TypeDecl *>::const_iterator tyVar = function->get_forall().begin(); tyVar != function->get_forall().end(); ++tyVar ) {
45 if ( (*tyVar)->get_name() == typeInst->get_name() ) {
46 doTransform = true;
47 name = typeInst->get_name();
48 break;
49 } // if
50 } // for
51 if ( ! doTransform && otherTyVars.find( typeInst->get_name() ) != otherTyVars.end() ) {
52 doTransform = true;
53 } // if
54 } // if
55 } // if
56 return doTransform;
57 }
58
59 bool isPolyRet( FunctionType *function, std::string &name ) {
60 TyVarMap dummyTyVars;
61 return isPolyRet( function, name, dummyTyVars );
62 }
63
64 bool isPolyRet( FunctionType *function, const TyVarMap &otherTyVars ) {
65 std::string dummyString;
66 return isPolyRet( function, dummyString, otherTyVars );
67 }
68
69 namespace {
70 /// Checks a parameter list for polymorphic parameters
71 bool hasPolyParams( std::list< Expression* >& params, const TyVarMap &tyVars, const TypeSubstitution *env ) {
72 for ( std::list< Expression* >::iterator param = params.begin(); param != params.end(); ++param ) {
73 TypeExpr *paramType = dynamic_cast< TypeExpr* >( *param );
74 assert(paramType && "Aggregate parameters should be type expressions");
75 if ( isPolyType( paramType->get_type(), tyVars, env ) ) return true;
76 }
77 return false;
78 }
79 }
80
81 Type *isPolyType( Type *type, const TyVarMap &tyVars, const TypeSubstitution *env ) {
82 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType * >( type ) ) {
83 if ( env ) {
84 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
85 return isPolyType( newType, tyVars, env );
86 } // if
87 } // if
88 if ( tyVars.find( typeInst->get_name() ) != tyVars.end() ) {
89 return type;
90 }
91 } else if ( StructInstType *structType = dynamic_cast< StructInstType* >( type ) ) {
92 if ( hasPolyParams( structType->get_parameters(), tyVars, env ) ) return type;
93 } else if ( UnionInstType *unionType = dynamic_cast< UnionInstType* >( type ) ) {
94 if ( hasPolyParams( unionType->get_parameters(), tyVars, env ) ) return type;
95 }
96 return 0;
97 }
98
99 Type *isPolyPtr( Type *type, const TyVarMap &tyVars, const TypeSubstitution *env ) {
100 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
101 return isPolyType( ptr->get_base(), tyVars, env );
102 } else if ( env ) {
103 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
104 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
105 return isPolyPtr( newType, tyVars, env );
106 } // if
107 } // if
108 } // if
109 return 0;
110 }
111
112 void printTyVarMap( std::ostream &os, const TyVarMap &tyVarMap ) {
113 for ( TyVarMap::const_iterator i = tyVarMap.begin(); i != tyVarMap.end(); ++i ) {
114 os << i->first << " (" << i->second << ") ";
115 } // for
116 os << std::endl;
117 }
118
119 std::string sizeofName( Type *ty ) {
120 return std::string( "_sizeof_" ) + SymTab::Mangler::mangle( ty, false, false );
121 }
122
123 std::string alignofName( Type *ty ) {
124 return std::string( "_alignof_" ) + SymTab::Mangler::mangle( ty, false, false );
125 }
126} // namespace GenPoly
127
128// Local Variables: //
129// tab-width: 4 //
130// mode: c++ //
131// compile-command: "make install" //
132// End: //
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