source: src/InitTweak/InitTweak.h @ 2d11663

arm-ehjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-expr
Last change on this file since 2d11663 was 2d11663, checked in by Aaron Moss <a3moss@…>, 2 years ago

resolver porting; finish top level of initialization

  • Property mode set to 100644
File size: 5.2 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// InitTweak.h --
8//
9// Author           : Rob Schluntz
10// Created On       : Fri May 13 11:26:36 2016
11// Last Modified By : Aaron B. Moss
12// Last Modified On : Mon Jun 10 13:30:00 2019
13// Update Count     : 5
14//
15
16#pragma once
17
18#include <list>               // for list
19#include <memory>             // for shared_ptr
20#include <string>             // for string, allocator
21#include <vector>
22
23#include "AST/Fwd.hpp"        // for AST nodes
24#include "SynTree/SynTree.h"  // for Visitor Nodes
25
26// helper functions for initialization
27namespace InitTweak {
28        FunctionDecl * isAssignment( Declaration * decl );
29        FunctionDecl * isDestructor( Declaration * decl );
30        FunctionDecl * isDefaultConstructor( Declaration * decl );
31        FunctionDecl * isCopyConstructor( Declaration * decl );
32        FunctionDecl * isCopyFunction( Declaration * decl, const std::string & fname );
33        bool isCopyFunction( const ast::FunctionDecl * decl );
34
35        /// returns the base type of the first parameter to a constructor/destructor/assignment function
36        Type * getTypeofThis( FunctionType * ftype );
37
38        /// returns the first parameter of a constructor/destructor/assignment function
39        ObjectDecl * getParamThis( FunctionType * ftype );
40
41        /// generate a bitwise assignment operation.
42        ApplicationExpr * createBitwiseAssignment( Expression * dst, Expression * src );
43
44        /// transform Initializer into an argument list that can be passed to a call expression
45        std::list< Expression * > makeInitList( Initializer * init );
46
47        /// True if the resolver should try to construct dwt
48        bool tryConstruct( DeclarationWithType * dwt );
49
50        /// True if the type can have a user-defined constructor
51        bool isConstructable( Type * t );
52
53        /// True if the Initializer contains designations
54        bool isDesignated( Initializer * init );
55
56        /// True if the ObjectDecl's Initializer nesting level is not deeper than the depth of its
57        /// type, where the depth of its type is the number of nested ArrayTypes + 1
58        bool checkInitDepth( ObjectDecl * objDecl );
59
60        /// returns the declaration of the function called by the expr (must be ApplicationExpr or UntypedExpr)
61        DeclarationWithType * getFunction( Expression * expr );
62        const ast::DeclWithType * getFunction( const ast::Expr * expr );
63
64        /// Non-Null if expr is a call expression whose target function is intrinsic
65        ApplicationExpr * isIntrinsicCallExpr( Expression * expr );
66        const ast::ApplicationExpr * isIntrinsicCallExpr( const ast::Expr * expr);
67
68        /// True if stmt is a call statement where the function called is intrinsic and takes one parameter.
69        /// Intended to be used for default ctor/dtor calls, but might have use elsewhere.
70        /// Currently has assertions that make it less than fully general.
71        bool isIntrinsicSingleArgCallStmt( Statement * stmt );
72        bool isIntrinsicSingleArgCallStmt( const ast::Stmt * stmt );
73
74        /// True if stmt is a call statement where the function called is intrinsic.
75        bool isIntrinsicCallStmt( Statement * stmt );
76
77        /// get all Ctor/Dtor call expressions from a Statement
78        void collectCtorDtorCalls( Statement * stmt, std::list< Expression * > & matches );
79        std::vector< ast::ptr< ast::Expr > > collectCtorDtorCalls( const ast::Stmt * stmt );
80
81        /// get the Ctor/Dtor call expression from a Statement that looks like a generated ctor/dtor call
82        Expression * getCtorDtorCall( Statement * stmt );
83
84        /// returns the name of the function being called
85        std::string getFunctionName( Expression * expr );
86        std::string getFunctionName( const ast::Expr * expr );
87
88        /// returns the argument to a call expression in position N indexed from 0
89        Expression *& getCallArg( Expression * callExpr, unsigned int pos );
90        const ast::Expr * getCallArg( const ast::Expr * call, unsigned pos );
91
92        /// returns the base type of a PointerType or ArrayType, else returns NULL
93        Type * getPointerBase( Type * );
94        const ast::Type* getPointerBase( const ast::Type* );
95
96        /// returns the argument if it is a PointerType or ArrayType, else returns NULL
97        Type * isPointerType( Type * );
98
99        /// returns true if expr is trivially a compile-time constant
100        bool isConstExpr( Expression * expr );
101        bool isConstExpr( Initializer * init );
102
103        class InitExpander {
104        public:
105                // expand by stepping through init to get each list of arguments
106                InitExpander( Initializer * init );
107
108                // always expand to expr
109                InitExpander( Expression * expr );
110
111                // iterator-like interface
112                std::list< Expression * > operator*();
113                InitExpander & operator++();
114
115                // builds statement which has the same semantics as a C-style list initializer
116                // (for array initializers) using callExpr as the base expression to perform initialization
117                Statement * buildListInit( UntypedExpr * callExpr );
118                void addArrayIndex( Expression * index, Expression * dimension );
119                void clearArrayIndices();
120                bool addReference();
121
122                class ExpanderImpl;
123
124                typedef std::list< Expression * > IndexList;
125        private:
126                std::shared_ptr< ExpanderImpl > expander;
127                std::list< Expression * > cur;
128
129                // invariant: list of size 2N (elements come in pairs [index, dimension])
130                IndexList indices;
131        };
132} // namespace
133
134// Local Variables: //
135// tab-width: 4 //
136// mode: c++ //
137// compile-command: "make install" //
138// End: //
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