source: src/InitTweak/InitTweak.h @ 9b4f329

arm-ehcleanup-dtorsjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-expr
Last change on this file since 9b4f329 was 9b4f329, checked in by Aaron Moss <a3moss@…>, 3 years ago

Finished porting AST::Expr subclasses

  • Property mode set to 100644
File size: 4.8 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// 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        const ast::Expr * getCallArg( const ast::Expr * call, unsigned pos );
84
85        /// returns the base type of a PointerType or ArrayType, else returns NULL
86        Type * getPointerBase( Type * );
87        const ast::Type* getPointerBase( const ast::Type* );
88
89        /// returns the argument if it is a PointerType or ArrayType, else returns NULL
90        Type * isPointerType( Type * );
91
92        /// returns true if expr is trivially a compile-time constant
93        bool isConstExpr( Expression * expr );
94        bool isConstExpr( Initializer * init );
95
96        class InitExpander {
97        public:
98                // expand by stepping through init to get each list of arguments
99                InitExpander( Initializer * init );
100
101                // always expand to expr
102                InitExpander( Expression * expr );
103
104                // iterator-like interface
105                std::list< Expression * > operator*();
106                InitExpander & operator++();
107
108                // builds statement which has the same semantics as a C-style list initializer
109                // (for array initializers) using callExpr as the base expression to perform initialization
110                Statement * buildListInit( UntypedExpr * callExpr );
111                void addArrayIndex( Expression * index, Expression * dimension );
112                void clearArrayIndices();
113                bool addReference();
114
115                class ExpanderImpl;
116
117                typedef std::list< Expression * > IndexList;
118        private:
119                std::shared_ptr< ExpanderImpl > expander;
120                std::list< Expression * > cur;
121
122                // invariant: list of size 2N (elements come in pairs [index, dimension])
123                IndexList indices;
124        };
125} // namespace
126
127// Local Variables: //
128// tab-width: 4 //
129// mode: c++ //
130// compile-command: "make install" //
131// End: //
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