source: src/InitTweak/InitTweak.h @ d67cdb7

aaron-thesisarm-ehcleanup-dtorsdeferred_resndemanglerjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerresolv-newwith_gc
Last change on this file since d67cdb7 was d67cdb7, checked in by Peter A. Buhr <pabuhr@…>, 4 years ago

merge

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File size: 4.2 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 : Peter A. Buhr
12// Last Modified On : Sat Jul 22 09:30:33 2017
13// Update Count     : 4
14//
15
16#pragma once
17
18#include <list>               // for list
19#include <memory>             // for shared_ptr
20#include <string>             // for string, allocator
21
22#include "SynTree/SynTree.h"  // for Visitor Nodes
23
24// helper functions for initialization
25namespace InitTweak {
26        FunctionDecl * isAssignment( Declaration * decl );
27        FunctionDecl * isDestructor( Declaration * decl );
28        FunctionDecl * isDefaultConstructor( Declaration * decl );
29        FunctionDecl * isCopyConstructor( Declaration * decl );
30        FunctionDecl * isCopyFunction( Declaration * decl, const std::string & fname );
31
32        /// transform Initializer into an argument list that can be passed to a call expression
33        std::list< Expression * > makeInitList( Initializer * init );
34
35        /// True if the resolver should try to construct dwt
36        bool tryConstruct( DeclarationWithType * dwt );
37
38        /// True if the type can have a user-defined constructor
39        bool isConstructable( Type * t );
40
41        /// True if the Initializer contains designations
42        bool isDesignated( Initializer * init );
43
44        /// True if the ObjectDecl's Initializer nesting level is not deeper than the depth of its
45        /// type, where the depth of its type is the number of nested ArrayTypes + 1
46        bool checkInitDepth( ObjectDecl * objDecl );
47
48        /// returns the declaration of the function called by the expr (must be ApplicationExpr or UntypedExpr)
49        DeclarationWithType * getFunction( Expression * expr );
50
51        /// Non-Null if expr is a call expression whose target function is intrinsic
52        ApplicationExpr * isIntrinsicCallExpr( Expression * expr );
53
54        /// True if stmt is a call statement where the function called is intrinsic and takes one parameter.
55        /// Intended to be used for default ctor/dtor calls, but might have use elsewhere.
56        /// Currently has assertions that make it less than fully general.
57        bool isIntrinsicSingleArgCallStmt( Statement * stmt );
58
59        /// True if stmt is a call statement where the function called is intrinsic.
60        bool isIntrinsicCallStmt( Statement * stmt );
61
62        /// get all Ctor/Dtor call expressions from a Statement
63        void collectCtorDtorCalls( Statement * stmt, std::list< Expression * > & matches );
64
65        /// get the Ctor/Dtor call expression from a Statement that looks like a generated ctor/dtor call
66        Expression * getCtorDtorCall( Statement * stmt );
67
68        /// returns the name of the function being called
69        std::string getFunctionName( Expression * expr );
70
71        /// returns the argument to a call expression in position N indexed from 0
72        Expression *& getCallArg( Expression * callExpr, unsigned int pos );
73
74        /// returns the base type of a PointerType or ArrayType, else returns NULL
75        Type * getPointerBase( Type * );
76
77        /// returns the argument if it is a PointerType or ArrayType, else returns NULL
78        Type * isPointerType( Type * );
79
80        /// returns true if expr is trivially a compile-time constant
81        bool isConstExpr( Expression * expr );
82        bool isConstExpr( Initializer * init );
83
84        class InitExpander {
85        public:
86                // expand by stepping through init to get each list of arguments
87                InitExpander( Initializer * init );
88
89                // always expand to expr
90                InitExpander( Expression * expr );
91
92                // iterator-like interface
93                std::list< Expression * > operator*();
94                InitExpander & operator++();
95
96                // builds statement which has the same semantics as a C-style list initializer
97                // (for array initializers) using callExpr as the base expression to perform initialization
98                Statement * buildListInit( UntypedExpr * callExpr );
99                void addArrayIndex( Expression * index, Expression * dimension );
100                void clearArrayIndices();
101
102                class ExpanderImpl;
103
104                typedef std::list< Expression * > IndexList;
105        private:
106                std::shared_ptr< ExpanderImpl > expander;
107                std::list< Expression * > cur;
108
109                // invariant: list of size 2N (elements come in pairs [index, dimension])
110                IndexList indices;
111        };
112} // namespace
113
114// Local Variables: //
115// tab-width: 4 //
116// mode: c++ //
117// compile-command: "make install" //
118// End: //
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