source: src/InitTweak/InitTweak.h @ a465caf

ADTaaron-thesisarm-ehast-experimentalcleanup-dtorsctordeferred_resndemanglerenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerpthread-emulationqualifiedEnumresolv-newwith_gc
Last change on this file since a465caf was a465caf, checked in by Rob Schluntz <rschlunt@…>, 8 years ago

generate a field constructor for union types and some refactoring

  • Property mode set to 100644
File size: 3.4 KB
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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// RemoveInit.h --
8//
9// Author           : Rob Schluntz
10// Created On       : Fri May 13 11:26:36 2016
11// Last Modified By : Rob Schluntz
12// Last Modified On : Fri May 13 11:35:36 2016
13// Update Count     : 3
14//
15
16#ifndef INIT_TWEAK_H
17#define INIT_TWEAK_H
18
19#include <string>
20#include <list>
21
22#include "SynTree/SynTree.h"
23#include "SynTree/Declaration.h"
24#include "SynTree/Mutator.h"
25
26// helper functions for initialization
27namespace InitTweak {
28        /// transform Initializer into an argument list that can be passed to a call expression
29        std::list< Expression * > makeInitList( Initializer * init );
30
31        /// True if the resolver should try to construct objDecl
32        bool tryConstruct( ObjectDecl * objDecl );
33
34        /// True if the Initializer contains designations
35        bool isDesignated( Initializer * init );
36
37  /// Non-Null if expr is a call expression whose target function is intrinsic
38  ApplicationExpr * isIntrinsicCallExpr( Expression * expr );
39
40        /// True if stmt is a call statement where the function called is intrinsic and takes one parameter.
41        /// Intended to be used for default ctor/dtor calls, but might have use elsewhere.
42        /// Currently has assertions that make it less than fully general.
43        bool isIntrinsicSingleArgCallStmt( Statement * stmt );
44
45        /// True if stmt is a call statement where the function called is intrinsic.
46        bool isIntrinsicCallStmt( Statement * stmt );
47
48        /// get all Ctor/Dtor call expressions from a Statement
49        void collectCtorDtorCalls( Statement * stmt, std::list< Expression * > & matches );
50
51        /// get the Ctor/Dtor call expression from a Statement that looks like a generated ctor/dtor call
52        Expression * getCtorDtorCall( Statement * stmt );
53
54        /// returns the name of the function being called
55        std::string getFunctionName( Expression * expr );
56
57        /// returns the argument to a call expression in position N indexed from 0
58        Expression *& getCallArg( Expression * callExpr, unsigned int pos );
59
60        /// returns the base type of a PointerType or ArrayType, else returns NULL
61        Type * getPointerBase( Type * );
62
63        /// returns the argument if it is a PointerType or ArrayType, else returns NULL
64        Type * isPointerType( Type * );
65
66        /// returns true if expr is trivially a compile-time constant
67        bool isConstExpr( Expression * expr );
68        bool isConstExpr( Initializer * init );
69
70        class InitExpander {
71        public:
72                // expand by stepping through init to get each list of arguments
73                InitExpander( Initializer * init );
74
75                // always expand to expr
76                InitExpander( Expression * expr );
77
78                // iterator-like interface
79                std::list< Expression * > operator*();
80                InitExpander & operator++();
81
82                // builds statement which has the same semantics as a C-style list initializer
83                // (for array initializers) using callExpr as the base expression to perform initialization
84                Statement * buildListInit( UntypedExpr * callExpr );
85                void addArrayIndex( Expression * index, Expression * dimension );
86                void clearArrayIndices();
87
88                class ExpanderImpl;
89        private:
90                std::shared_ptr< ExpanderImpl > expander;
91                std::list< Expression * > cur;
92
93                // invariant: list of size 2N (elements come in pairs [index, dimension])
94                typedef std::list< Expression * > IndexList;
95                IndexList indices;
96        };
97} // namespace
98
99#endif // INITTWEAK_GENINIT_H
100
101// Local Variables: //
102// tab-width: 4 //
103// mode: c++ //
104// compile-command: "make install" //
105// End: //
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