source: src/InitTweak/InitTweak.h @ f3cc5b6

ADTarm-ehast-experimentalcleanup-dtorsenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprpthread-emulationqualifiedEnum
Last change on this file since f3cc5b6 was 9e1d485, checked in by Aaron Moss <a3moss@…>, 5 years ago

First draft of ast::Type with subclasses

  • Property mode set to 100644
File size: 4.7 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 "AST/Fwd.hpp"        // for AST nodes
23#include "SynTree/SynTree.h"  // for Visitor Nodes
24
25// helper functions for initialization
26namespace InitTweak {
27        FunctionDecl * isAssignment( Declaration * decl );
28        FunctionDecl * isDestructor( Declaration * decl );
29        FunctionDecl * isDefaultConstructor( Declaration * decl );
30        FunctionDecl * isCopyConstructor( Declaration * decl );
31        FunctionDecl * isCopyFunction( Declaration * decl, const std::string & fname );
32
33        /// returns the base type of the first parameter to a constructor/destructor/assignment function
34        Type * getTypeofThis( FunctionType * ftype );
35
36        /// returns the first parameter of a constructor/destructor/assignment function
37        ObjectDecl * getParamThis( FunctionType * ftype );
38
39        /// generate a bitwise assignment operation.
40        ApplicationExpr * createBitwiseAssignment( Expression * dst, Expression * src );
41
42        /// transform Initializer into an argument list that can be passed to a call expression
43        std::list< Expression * > makeInitList( Initializer * init );
44
45        /// True if the resolver should try to construct dwt
46        bool tryConstruct( DeclarationWithType * dwt );
47
48        /// True if the type can have a user-defined constructor
49        bool isConstructable( Type * t );
50
51        /// True if the Initializer contains designations
52        bool isDesignated( Initializer * init );
53
54        /// True if the ObjectDecl's Initializer nesting level is not deeper than the depth of its
55        /// type, where the depth of its type is the number of nested ArrayTypes + 1
56        bool checkInitDepth( ObjectDecl * objDecl );
57
58        /// returns the declaration of the function called by the expr (must be ApplicationExpr or UntypedExpr)
59        DeclarationWithType * getFunction( Expression * expr );
60
61        /// Non-Null if expr is a call expression whose target function is intrinsic
62        ApplicationExpr * isIntrinsicCallExpr( Expression * expr );
63
64        /// True if stmt is a call statement where the function called is intrinsic and takes one parameter.
65        /// Intended to be used for default ctor/dtor calls, but might have use elsewhere.
66        /// Currently has assertions that make it less than fully general.
67        bool isIntrinsicSingleArgCallStmt( Statement * stmt );
68
69        /// True if stmt is a call statement where the function called is intrinsic.
70        bool isIntrinsicCallStmt( Statement * stmt );
71
72        /// get all Ctor/Dtor call expressions from a Statement
73        void collectCtorDtorCalls( Statement * stmt, std::list< Expression * > & matches );
74
75        /// get the Ctor/Dtor call expression from a Statement that looks like a generated ctor/dtor call
76        Expression * getCtorDtorCall( Statement * stmt );
77
78        /// returns the name of the function being called
79        std::string getFunctionName( Expression * expr );
80
81        /// returns the argument to a call expression in position N indexed from 0
82        Expression *& getCallArg( Expression * callExpr, unsigned int pos );
83
84        /// returns the base type of a PointerType or ArrayType, else returns NULL
85        Type * getPointerBase( Type * );
86        const ast::Type* getPointerBase( const ast::Type* );
87
88        /// returns the argument if it is a PointerType or ArrayType, else returns NULL
89        Type * isPointerType( Type * );
90
91        /// returns true if expr is trivially a compile-time constant
92        bool isConstExpr( Expression * expr );
93        bool isConstExpr( Initializer * init );
94
95        class InitExpander {
96        public:
97                // expand by stepping through init to get each list of arguments
98                InitExpander( Initializer * init );
99
100                // always expand to expr
101                InitExpander( Expression * expr );
102
103                // iterator-like interface
104                std::list< Expression * > operator*();
105                InitExpander & operator++();
106
107                // builds statement which has the same semantics as a C-style list initializer
108                // (for array initializers) using callExpr as the base expression to perform initialization
109                Statement * buildListInit( UntypedExpr * callExpr );
110                void addArrayIndex( Expression * index, Expression * dimension );
111                void clearArrayIndices();
112                bool addReference();
113
114                class ExpanderImpl;
115
116                typedef std::list< Expression * > IndexList;
117        private:
118                std::shared_ptr< ExpanderImpl > expander;
119                std::list< Expression * > cur;
120
121                // invariant: list of size 2N (elements come in pairs [index, dimension])
122                IndexList indices;
123        };
124} // namespace
125
126// Local Variables: //
127// tab-width: 4 //
128// mode: c++ //
129// compile-command: "make install" //
130// End: //
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