source: src/AST/Decl.cpp @ b7d6a36

ADTarm-ehast-experimentalenumforall-pointer-decayjacob/cs343-translationnew-astnew-ast-unique-exprpthread-emulationqualifiedEnum
Last change on this file since b7d6a36 was 07de76b, checked in by Peter A. Buhr <pabuhr@…>, 5 years ago

remove file TypeVar?.h* and put TypeVar::Kind into TypeDecl?, move LinkageSpec?.* from directory Parse to SynTree?

  • Property mode set to 100644
File size: 3.7 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// Decl.cpp --
8//
9// Author           : Aaron B. Moss
10// Created On       : Thu May 9 10:00:00 2019
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Fri Dec 13 16:23:15 2019
13// Update Count     : 20
14//
15
16#include "Decl.hpp"
17
18#include <cassert>             // for assert, strict_dynamic_cast
19#include <iostream>
20#include <unordered_map>
21
22#include "Common/utility.h"
23
24#include "Fwd.hpp"             // for UniqueId
25#include "Init.hpp"
26#include "Node.hpp"            // for readonly
27#include "Type.hpp"            // for readonly
28
29namespace ast {
30
31// To canonicalize declarations
32static UniqueId lastUniqueId = 0;
33
34using IdMapType = std::unordered_map< UniqueId, readonly<Decl> >;
35static IdMapType idMap;
36
37void Decl::fixUniqueId() {
38        if ( uniqueId ) return;  // ensure only set once
39        uniqueId = ++lastUniqueId;
40        idMap[ uniqueId ] = this;
41}
42
43readonly<Decl> Decl::fromId( UniqueId id ) {
44        IdMapType::const_iterator i = idMap.find( id );
45        if ( i != idMap.end() ) return i->second;
46        return {};
47}
48
49// --- FunctionDecl
50
51const Type * FunctionDecl::get_type() const { return type.get(); }
52void FunctionDecl::set_type(Type * t) { type = strict_dynamic_cast< FunctionType* >( t ); }
53
54// --- TypeDecl
55
56const char * TypeDecl::typeString() const {
57        static const char * kindNames[] = { "sized data type", "sized object type", "sized function type", "sized tuple type" };
58        static_assert( sizeof(kindNames)/sizeof(kindNames[0]) == TypeDecl::NUMBER_OF_KINDS, "typeString: kindNames is out of sync." );
59        assertf( kind < TypeDecl::NUMBER_OF_KINDS, "TypeDecl kind is out of bounds." );
60        return sized ? kindNames[ kind ] : &kindNames[ kind ][ sizeof("sized") ]; // sizeof includes '\0'
61}
62
63const char * TypeDecl::genTypeString() const {
64        static const char * kindNames[] = { "dtype", "otype", "ftype", "ttype" };
65        static_assert( sizeof(kindNames)/sizeof(kindNames[0]) == TypeDecl::NUMBER_OF_KINDS, "genTypeString: kindNames is out of sync." );
66        assertf( kind < TypeDecl::NUMBER_OF_KINDS, "TypeDecl kind is out of bounds." );
67        return kindNames[ kind ];
68}
69
70std::ostream & operator<< ( std::ostream & out, const TypeDecl::Data & data ) {
71        return out << data.kind << ", " << data.isComplete;
72}
73
74// --- AggregateDecl
75
76// These must harmonize with the corresponding AggregateDecl::Aggregate enumerations.
77static const char * aggregateNames[] = { "struct", "union", "enum", "exception", "trait", "generator", "coroutine", "monitor", "thread", "NoAggregateName" };
78
79const char * AggregateDecl::aggrString( AggregateDecl::Aggregate aggr ) {
80        return aggregateNames[aggr];
81}
82
83// --- EnumDecl
84
85bool EnumDecl::valueOf( const Decl * enumerator, long long& value ) const {
86        if ( enumValues.empty() ) {
87                long long crntVal = 0;
88                for ( const Decl * member : members ) {
89                        const ObjectDecl* field = strict_dynamic_cast< const ObjectDecl* >( member );
90                        if ( field->init ) {
91                                const SingleInit * init = strict_dynamic_cast< const SingleInit* >( field->init.get() );
92                                auto result = eval( init->value );
93                                if ( ! result.second ) {
94                                        SemanticError( init->location, ::toString( "Non-constexpr in initialization of "
95                                                "enumerator: ", field ) );
96                                }
97                                crntVal = result.first;
98                        }
99                        if ( enumValues.count( field->name ) != 0 ) {
100                                SemanticError( location, ::toString( "Enum ", name, " has multiple members with the "   "name ", field->name ) );
101                        }
102                        enumValues[ field->name ] = crntVal;
103                        ++crntVal;
104                }
105        }
106
107        auto it = enumValues.find( enumerator->name );
108        if ( it != enumValues.end() ) {
109                value = it->second;
110                return true;
111        }
112        return false;
113}
114
115}
116
117// Local Variables: //
118// tab-width: 4 //
119// mode: c++ //
120// compile-command: "make install" //
121// End: //
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