[972e6f7] | 1 | // |
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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| 6 | // |
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| 7 | // Autogen.h -- |
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| 8 | // |
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| 9 | // Author : Rob Schluntz |
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| 10 | // Created On : Sun May 17 21:53:34 2015 |
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[c0aa336] | 11 | // Last Modified By : Peter A. Buhr |
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[6b0b624] | 12 | // Last Modified On : Sat Jul 22 09:50:25 2017 |
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| 13 | // Update Count : 15 |
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[972e6f7] | 14 | // |
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| 15 | |
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[6b0b624] | 16 | #pragma once |
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[972e6f7] | 17 | |
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[30f9072] | 18 | #include <cassert> // for assert |
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[b8524ca] | 19 | #include <iterator> // for back_inserter |
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[d180746] | 20 | #include <string> // for string |
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[30f9072] | 21 | |
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[b8524ca] | 22 | #include "AST/Decl.hpp" |
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| 23 | #include "AST/Expr.hpp" |
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| 24 | #include "AST/Init.hpp" |
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| 25 | #include "AST/Node.hpp" |
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| 26 | #include "AST/Stmt.hpp" |
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| 27 | #include "AST/Type.hpp" |
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[1a5ad8c] | 28 | #include "CodeGen/OperatorTable.h" |
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[30f9072] | 29 | #include "Common/UniqueName.h" // for UniqueName |
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[b8524ca] | 30 | #include "Common/utility.h" // for splice |
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[30f9072] | 31 | #include "InitTweak/InitTweak.h" // for InitExpander |
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| 32 | #include "SynTree/Constant.h" // for Constant |
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[d180746] | 33 | #include "SynTree/Declaration.h" // for DeclarationWithType, ObjectDecl |
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| 34 | #include "SynTree/Expression.h" // for NameExpr, ConstantExpr, UntypedExpr... |
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[30f9072] | 35 | #include "SynTree/Type.h" // for Type, ArrayType, Type::Qualifiers |
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[972e6f7] | 36 | |
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[d180746] | 37 | class CompoundStmt; |
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| 38 | class Statement; |
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| 39 | |
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[972e6f7] | 40 | namespace SymTab { |
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[2be1023] | 41 | /// Generates assignment operators, constructors, and destructor for aggregate types as required |
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| 42 | void autogenerateRoutines( std::list< Declaration * > &translationUnit ); |
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| 43 | |
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| 44 | /// returns true if obj's name is the empty string and it has a bitfield width |
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| 45 | bool isUnnamedBitfield( ObjectDecl * obj ); |
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[b8524ca] | 46 | bool isUnnamedBitfield( const ast::ObjectDecl * obj ); |
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[2be1023] | 47 | |
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[837ce06] | 48 | /// generate the type of an assignment function for paramType. |
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| 49 | /// maybePolymorphic is true if the resulting FunctionType is allowed to be polymorphic |
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| 50 | FunctionType * genAssignType( Type * paramType, bool maybePolymorphic = true ); |
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[8a6cf7e] | 51 | |
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[837ce06] | 52 | /// generate the type of a default constructor or destructor for paramType. |
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| 53 | /// maybePolymorphic is true if the resulting FunctionType is allowed to be polymorphic |
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| 54 | FunctionType * genDefaultType( Type * paramType, bool maybePolymorphic = true ); |
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[8404321] | 55 | |
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[837ce06] | 56 | /// generate the type of a copy constructor for paramType. |
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| 57 | /// maybePolymorphic is true if the resulting FunctionType is allowed to be polymorphic |
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| 58 | FunctionType * genCopyType( Type * paramType, bool maybePolymorphic = true ); |
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[8404321] | 59 | |
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[b8524ca] | 60 | /// Enum for loop direction |
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| 61 | enum LoopDirection { LoopBackward, LoopForward }; |
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| 62 | |
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[2be1023] | 63 | /// inserts into out a generated call expression to function fname with arguments dstParam and srcParam. Intended to be used with generated ?=?, ?{}, and ^?{} calls. |
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| 64 | template< typename OutputIterator > |
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[b8524ca] | 65 | Statement * genCall( InitTweak::InitExpander_old & srcParam, Expression * dstParam, const std::string & fname, OutputIterator out, Type * type, Type * addCast = nullptr, bool forward = true ); |
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| 66 | |
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| 67 | template< typename OutIter > |
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| 68 | ast::ptr< ast::Stmt > genCall( |
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| 69 | InitTweak::InitExpander_new & srcParam, const ast::Expr * dstParam, |
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| 70 | const CodeLocation & loc, const std::string & fname, OutIter && out, |
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| 71 | const ast::Type * type, const ast::Type * addCast, LoopDirection forward = LoopForward ); |
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[2be1023] | 72 | |
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| 73 | /// inserts into out a generated call expression to function fname with arguments dstParam and srcParam. Should only be called with non-array types. |
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[f9cebb5] | 74 | /// optionally returns a statement which must be inserted prior to the containing loop, if there is one |
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[2be1023] | 75 | template< typename OutputIterator > |
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[b8524ca] | 76 | Statement * genScalarCall( InitTweak::InitExpander_old & srcParam, Expression * dstParam, std::string fname, OutputIterator out, Type * type, Type * addCast = nullptr ) { |
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[1a5ad8c] | 77 | bool isReferenceCtorDtor = false; |
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| 78 | if ( dynamic_cast< ReferenceType * >( type ) && CodeGen::isCtorDtor( fname ) ) { |
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| 79 | // reference constructors are essentially application of the rebind operator. |
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| 80 | // apply & to both arguments, do not need a cast |
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| 81 | fname = "?=?"; |
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| 82 | dstParam = new AddressExpr( dstParam ); |
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[b95fe40] | 83 | addCast = nullptr; |
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[1a5ad8c] | 84 | isReferenceCtorDtor = true; |
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| 85 | } |
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| 86 | |
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[49148d5] | 87 | // want to be able to generate assignment, ctor, and dtor generically, |
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| 88 | // so fname is either ?=?, ?{}, or ^?{} |
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[1a5ad8c] | 89 | UntypedExpr * fExpr = new UntypedExpr( new NameExpr( fname ) ); |
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[49148d5] | 90 | |
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| 91 | if ( addCast ) { |
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| 92 | // cast to T& with qualifiers removed, so that qualified objects can be constructed |
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| 93 | // and destructed with the same functions as non-qualified objects. |
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| 94 | // unfortunately, lvalue is considered a qualifier. For AddressExpr to resolve, its argument |
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| 95 | // must have an lvalue qualified type, so remove all qualifiers except lvalue. If we ever |
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| 96 | // remove lvalue as a qualifier, this can change to |
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| 97 | // type->get_qualifiers() = Type::Qualifiers(); |
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[b95fe40] | 98 | Type * castType = addCast->clone(); |
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[49148d5] | 99 | castType->get_qualifiers() -= Type::Qualifiers( Type::Lvalue | Type::Const | Type::Volatile | Type::Restrict | Type::Atomic ); |
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| 100 | // castType->set_lvalue( true ); // xxx - might not need this |
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| 101 | dstParam = new CastExpr( dstParam, new ReferenceType( Type::Qualifiers(), castType ) ); |
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| 102 | } |
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[1a5ad8c] | 103 | fExpr->args.push_back( dstParam ); |
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[2be1023] | 104 | |
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[49148d5] | 105 | Statement * listInit = srcParam.buildListInit( fExpr ); |
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[39f84a4] | 106 | |
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[1a5ad8c] | 107 | // fetch next set of arguments |
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| 108 | ++srcParam; |
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| 109 | |
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| 110 | // return if adding reference fails - will happen on default constructor and destructor |
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| 111 | if ( isReferenceCtorDtor && ! srcParam.addReference() ) { |
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| 112 | delete fExpr; |
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| 113 | return listInit; |
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| 114 | } |
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| 115 | |
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| 116 | std::list< Expression * > args = *srcParam; |
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| 117 | fExpr->args.splice( fExpr->args.end(), args ); |
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[4d2434a] | 118 | |
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[ba3706f] | 119 | *out++ = new ExprStmt( fExpr ); |
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[4d2434a] | 120 | |
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[49148d5] | 121 | srcParam.clearArrayIndices(); |
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[f9cebb5] | 122 | |
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[49148d5] | 123 | return listInit; |
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[2be1023] | 124 | } |
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| 125 | |
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[b8524ca] | 126 | /// inserts into out a generated call expression to function fname with arguments dstParam and |
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| 127 | /// srcParam. Should only be called with non-array types. |
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| 128 | /// optionally returns a statement which must be inserted prior to the containing loop, if |
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| 129 | /// there is one |
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| 130 | template< typename OutIter > |
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| 131 | ast::ptr< ast::Stmt > genScalarCall( |
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| 132 | InitTweak::InitExpander_new & srcParam, const ast::Expr * dstParam, |
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| 133 | const CodeLocation & loc, std::string fname, OutIter && out, const ast::Type * type, |
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| 134 | const ast::Type * addCast = nullptr |
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| 135 | ) { |
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| 136 | bool isReferenceCtorDtor = false; |
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| 137 | if ( dynamic_cast< const ast::ReferenceType * >( type ) && CodeGen::isCtorDtor( fname ) ) { |
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| 138 | // reference constructors are essentially application of the rebind operator. |
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| 139 | // apply & to both arguments, do not need a cast |
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| 140 | fname = "?=?"; |
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| 141 | dstParam = new ast::AddressExpr{ dstParam }; |
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| 142 | addCast = nullptr; |
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| 143 | isReferenceCtorDtor = true; |
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| 144 | } |
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| 145 | |
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| 146 | // want to be able to generate assignment, ctor, and dtor generically, so fname is one of |
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| 147 | // "?=?", "?{}", or "^?{}" |
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| 148 | ast::UntypedExpr * fExpr = new ast::UntypedExpr{ loc, new ast::NameExpr{ loc, fname } }; |
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| 149 | |
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| 150 | if ( addCast ) { |
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| 151 | // cast to T& with qualifiers removed, so that qualified objects can be constructed and |
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| 152 | // destructed with the same functions as non-qualified objects. Unfortunately, lvalue |
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| 153 | // is considered a qualifier - for AddressExpr to resolve, its argument must have an |
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| 154 | // lvalue-qualified type, so remove all qualifiers except lvalue. |
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| 155 | // xxx -- old code actually removed lvalue too... |
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| 156 | ast::ptr< ast::Type > guard = addCast; // prevent castType from mutating addCast |
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| 157 | ast::ptr< ast::Type > castType = addCast; |
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| 158 | ast::remove_qualifiers( |
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| 159 | castType, |
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| 160 | ast::CV::Const | ast::CV::Volatile | ast::CV::Restrict | ast::CV::Atomic ); |
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| 161 | dstParam = new ast::CastExpr{ dstParam, new ast::ReferenceType{ castType } }; |
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| 162 | } |
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| 163 | fExpr->args.emplace_back( dstParam ); |
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| 164 | |
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| 165 | const ast::Stmt * listInit = srcParam.buildListInit( fExpr ); |
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| 166 | |
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| 167 | // fetch next set of arguments |
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| 168 | ++srcParam; |
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| 169 | |
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| 170 | // return if adding reference fails -- will happen on default ctor and dtor |
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| 171 | if ( isReferenceCtorDtor && ! srcParam.addReference() ) return listInit; |
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| 172 | |
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| 173 | std::vector< ast::ptr< ast::Expr > > args = *srcParam; |
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| 174 | splice( fExpr->args, args ); |
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| 175 | |
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| 176 | *out++ = new ast::ExprStmt{ loc, fExpr }; |
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| 177 | |
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| 178 | srcParam.clearArrayIndices(); |
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| 179 | |
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| 180 | return listInit; |
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| 181 | } |
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| 182 | |
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[2be1023] | 183 | /// Store in out a loop which calls fname on each element of the array with srcParam and dstParam as arguments. |
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| 184 | /// If forward is true, loop goes from 0 to N-1, else N-1 to 0 |
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| 185 | template< typename OutputIterator > |
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[b8524ca] | 186 | void genArrayCall( InitTweak::InitExpander_old & srcParam, Expression *dstParam, const std::string & fname, OutputIterator out, ArrayType *array, Type * addCast = nullptr, bool forward = true ) { |
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[2be1023] | 187 | static UniqueName indexName( "_index" ); |
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| 188 | |
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| 189 | // for a flexible array member nothing is done -- user must define own assignment |
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[b95fe40] | 190 | if ( ! array->get_dimension() ) return; |
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| 191 | |
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| 192 | if ( addCast ) { |
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| 193 | // peel off array layer from cast |
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| 194 | ArrayType * at = strict_dynamic_cast< ArrayType * >( addCast ); |
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| 195 | addCast = at->base; |
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| 196 | } |
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[2be1023] | 197 | |
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| 198 | Expression * begin, * end, * update, * cmp; |
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| 199 | if ( forward ) { |
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[579263a] | 200 | // generate: for ( int i = 0; i < N; ++i ) |
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| 201 | begin = new ConstantExpr( Constant::from_int( 0 ) ); |
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[1a5ad8c] | 202 | end = array->dimension->clone(); |
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[2be1023] | 203 | cmp = new NameExpr( "?<?" ); |
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| 204 | update = new NameExpr( "++?" ); |
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| 205 | } else { |
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| 206 | // generate: for ( int i = N-1; i >= 0; --i ) |
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| 207 | begin = new UntypedExpr( new NameExpr( "?-?" ) ); |
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[1a5ad8c] | 208 | ((UntypedExpr*)begin)->args.push_back( array->dimension->clone() ); |
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| 209 | ((UntypedExpr*)begin)->args.push_back( new ConstantExpr( Constant::from_int( 1 ) ) ); |
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[579263a] | 210 | end = new ConstantExpr( Constant::from_int( 0 ) ); |
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[2be1023] | 211 | cmp = new NameExpr( "?>=?" ); |
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| 212 | update = new NameExpr( "--?" ); |
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| 213 | } |
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| 214 | |
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[e4d829b] | 215 | ObjectDecl *index = new ObjectDecl( indexName.newName(), Type::StorageClasses(), LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::SignedInt ), new SingleInit( begin ) ); |
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[2be1023] | 216 | |
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| 217 | UntypedExpr *cond = new UntypedExpr( cmp ); |
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[1a5ad8c] | 218 | cond->args.push_back( new VariableExpr( index ) ); |
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| 219 | cond->args.push_back( end ); |
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[2be1023] | 220 | |
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| 221 | UntypedExpr *inc = new UntypedExpr( update ); |
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[1a5ad8c] | 222 | inc->args.push_back( new VariableExpr( index ) ); |
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[2be1023] | 223 | |
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| 224 | UntypedExpr *dstIndex = new UntypedExpr( new NameExpr( "?[?]" ) ); |
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[1a5ad8c] | 225 | dstIndex->args.push_back( dstParam ); |
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| 226 | dstIndex->args.push_back( new VariableExpr( index ) ); |
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[2be1023] | 227 | dstParam = dstIndex; |
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| 228 | |
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[39f84a4] | 229 | // srcParam must keep track of the array indices to build the |
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| 230 | // source parameter and/or array list initializer |
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[1a5ad8c] | 231 | srcParam.addArrayIndex( new VariableExpr( index ), array->dimension->clone() ); |
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[39f84a4] | 232 | |
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[2be1023] | 233 | // for stmt's body, eventually containing call |
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[ba3706f] | 234 | CompoundStmt * body = new CompoundStmt(); |
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[1a5ad8c] | 235 | Statement * listInit = genCall( srcParam, dstParam, fname, back_inserter( body->kids ), array->base, addCast, forward ); |
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[2be1023] | 236 | |
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| 237 | // block containing for stmt and index variable |
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| 238 | std::list<Statement *> initList; |
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[ba3706f] | 239 | CompoundStmt * block = new CompoundStmt(); |
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| 240 | block->push_back( new DeclStmt( index ) ); |
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[f9cebb5] | 241 | if ( listInit ) block->get_kids().push_back( listInit ); |
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[ba3706f] | 242 | block->push_back( new ForStmt( initList, cond, inc, body ) ); |
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[2be1023] | 243 | |
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| 244 | *out++ = block; |
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| 245 | } |
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| 246 | |
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[b8524ca] | 247 | /// Store in out a loop which calls fname on each element of the array with srcParam and |
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| 248 | /// dstParam as arguments. If forward is true, loop goes from 0 to N-1, else N-1 to 0 |
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| 249 | template< typename OutIter > |
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| 250 | void genArrayCall( |
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| 251 | InitTweak::InitExpander_new & srcParam, const ast::Expr * dstParam, |
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| 252 | const CodeLocation & loc, const std::string & fname, OutIter && out, |
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| 253 | const ast::ArrayType * array, const ast::Type * addCast = nullptr, |
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| 254 | LoopDirection forward = LoopForward |
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| 255 | ) { |
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| 256 | static UniqueName indexName( "_index" ); |
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| 257 | |
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| 258 | // for a flexible array member nothing is done -- user must define own assignment |
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| 259 | if ( ! array->dimension ) return; |
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| 260 | |
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| 261 | if ( addCast ) { |
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| 262 | // peel off array layer from cast |
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| 263 | addCast = strict_dynamic_cast< const ast::ArrayType * >( addCast )->base; |
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| 264 | } |
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| 265 | |
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| 266 | ast::ptr< ast::Expr > begin, end, cmp, update; |
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| 267 | |
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| 268 | if ( forward ) { |
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| 269 | // generate: for ( int i = 0; i < N; ++i ) |
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| 270 | begin = ast::ConstantExpr::from_int( loc, 0 ); |
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| 271 | end = array->dimension; |
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| 272 | cmp = new ast::NameExpr{ loc, "?<?" }; |
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| 273 | update = new ast::NameExpr{ loc, "++?" }; |
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| 274 | } else { |
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| 275 | // generate: for ( int i = N-1; i >= 0; --i ) |
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| 276 | begin = new ast::UntypedExpr{ |
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| 277 | loc, new ast::NameExpr{ loc, "?-?" }, |
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| 278 | { array->dimension, ast::ConstantExpr::from_int( loc, 1 ) } }; |
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| 279 | end = ast::ConstantExpr::from_int( loc, 0 ); |
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| 280 | cmp = new ast::NameExpr{ loc, "?>=?" }; |
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| 281 | update = new ast::NameExpr{ loc, "--?" }; |
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| 282 | } |
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| 283 | |
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| 284 | ast::ptr< ast::DeclWithType > index = new ast::ObjectDecl{ |
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| 285 | loc, indexName.newName(), new ast::BasicType{ ast::BasicType::SignedInt }, |
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| 286 | new ast::SingleInit{ loc, begin } }; |
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| 287 | |
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| 288 | ast::ptr< ast::Expr > cond = new ast::UntypedExpr{ |
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| 289 | loc, cmp, { new ast::VariableExpr{ loc, index }, end } }; |
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| 290 | |
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| 291 | ast::ptr< ast::Expr > inc = new ast::UntypedExpr{ |
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| 292 | loc, update, { new ast::VariableExpr{ loc, index } } }; |
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| 293 | |
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| 294 | ast::ptr< ast::Expr > dstIndex = new ast::UntypedExpr{ |
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| 295 | loc, new ast::NameExpr{ loc, "?[?]" }, |
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| 296 | { dstParam, new ast::VariableExpr{ loc, index } } }; |
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| 297 | |
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| 298 | // srcParam must keep track of the array indices to build the source parameter and/or |
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| 299 | // array list initializer |
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| 300 | srcParam.addArrayIndex( new ast::VariableExpr{ loc, index }, array->dimension ); |
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| 301 | |
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| 302 | // for stmt's body, eventually containing call |
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| 303 | ast::CompoundStmt * body = new ast::CompoundStmt{ loc }; |
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| 304 | ast::ptr< ast::Stmt > listInit = genCall( |
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| 305 | srcParam, dstIndex, loc, fname, std::back_inserter( body->kids ), array->base, addCast, |
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| 306 | forward ); |
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| 307 | |
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| 308 | // block containing the stmt and index variable |
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| 309 | ast::CompoundStmt * block = new ast::CompoundStmt{ loc }; |
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| 310 | block->push_back( new ast::DeclStmt{ loc, index } ); |
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| 311 | if ( listInit ) { block->push_back( listInit ); } |
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| 312 | block->push_back( new ast::ForStmt{ loc, {}, cond, inc, body } ); |
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| 313 | |
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| 314 | *out++ = block; |
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| 315 | } |
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| 316 | |
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[2be1023] | 317 | template< typename OutputIterator > |
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[b8524ca] | 318 | Statement * genCall( InitTweak::InitExpander_old & srcParam, Expression * dstParam, const std::string & fname, OutputIterator out, Type * type, Type * addCast, bool forward ) { |
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[2be1023] | 319 | if ( ArrayType * at = dynamic_cast< ArrayType * >( type ) ) { |
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[4d2434a] | 320 | genArrayCall( srcParam, dstParam, fname, out, at, addCast, forward ); |
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[f9cebb5] | 321 | return 0; |
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[2be1023] | 322 | } else { |
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[f9cebb5] | 323 | return genScalarCall( srcParam, dstParam, fname, out, type, addCast ); |
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[2be1023] | 324 | } |
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| 325 | } |
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| 326 | |
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[b8524ca] | 327 | template< typename OutIter > |
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| 328 | ast::ptr< ast::Stmt > genCall( |
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| 329 | InitTweak::InitExpander_new & srcParam, const ast::Expr * dstParam, |
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| 330 | const CodeLocation & loc, const std::string & fname, OutIter && out, |
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| 331 | const ast::Type * type, const ast::Type * addCast, LoopDirection forward |
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| 332 | ) { |
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| 333 | if ( auto at = dynamic_cast< const ast::ArrayType * >( type ) ) { |
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| 334 | genArrayCall( |
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| 335 | srcParam, dstParam, loc, fname, std::forward< OutIter >(out), at, addCast, |
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| 336 | forward ); |
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| 337 | return {}; |
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| 338 | } else { |
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| 339 | return genScalarCall( |
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| 340 | srcParam, dstParam, loc, fname, std::forward< OutIter >( out ), type, addCast ); |
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| 341 | } |
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| 342 | } |
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| 343 | |
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[2be1023] | 344 | /// inserts into out a generated call expression to function fname with arguments dstParam |
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| 345 | /// and srcParam. Intended to be used with generated ?=?, ?{}, and ^?{} calls. decl is the |
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| 346 | /// object being constructed. The function wraps constructor and destructor calls in an |
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| 347 | /// ImplicitCtorDtorStmt node. |
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| 348 | template< typename OutputIterator > |
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[b8524ca] | 349 | void genImplicitCall( InitTweak::InitExpander_old & srcParam, Expression * dstParam, const std::string & fname, OutputIterator out, DeclarationWithType * decl, bool forward = true ) { |
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[2be1023] | 350 | ObjectDecl *obj = dynamic_cast<ObjectDecl *>( decl ); |
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| 351 | assert( obj ); |
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| 352 | // unnamed bit fields are not copied as they cannot be accessed |
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| 353 | if ( isUnnamedBitfield( obj ) ) return; |
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| 354 | |
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[b95fe40] | 355 | Type * addCast = nullptr; |
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| 356 | if ( (fname == "?{}" || fname == "^?{}") && ( !obj || ( obj && ! obj->get_bitfieldWidth() ) ) ) { |
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| 357 | assert( dstParam->result ); |
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| 358 | addCast = dstParam->result; |
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| 359 | } |
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[2be1023] | 360 | std::list< Statement * > stmts; |
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[1a5ad8c] | 361 | genCall( srcParam, dstParam, fname, back_inserter( stmts ), obj->type, addCast, forward ); |
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[2be1023] | 362 | |
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[6cf27a07] | 363 | // currently genCall should produce at most one element, but if that changes then the next line needs to be updated to grab the statement which contains the call |
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| 364 | assert( stmts.size() <= 1 ); |
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[f9cebb5] | 365 | if ( stmts.size() == 1 ) { |
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| 366 | Statement * callStmt = stmts.front(); |
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| 367 | if ( addCast ) { |
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| 368 | // implicitly generated ctor/dtor calls should be wrapped |
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| 369 | // so that later passes are aware they were generated. |
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| 370 | // xxx - don't mark as an implicit ctor/dtor if obj is a bitfield, |
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| 371 | // because this causes the address to be taken at codegen, which is illegal in C. |
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| 372 | callStmt = new ImplicitCtorDtorStmt( callStmt ); |
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| 373 | } |
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| 374 | *out++ = callStmt; |
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| 375 | } |
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[2be1023] | 376 | } |
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[b8524ca] | 377 | |
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| 378 | static inline ast::ptr< ast::Stmt > genImplicitCall( |
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| 379 | InitTweak::InitExpander_new & srcParam, const ast::Expr * dstParam, |
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| 380 | const CodeLocation & loc, const std::string & fname, const ast::ObjectDecl * obj, |
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| 381 | LoopDirection forward = LoopForward |
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| 382 | ) { |
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| 383 | // unnamed bit fields are not copied as they cannot be accessed |
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| 384 | if ( isUnnamedBitfield( obj ) ) return {}; |
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| 385 | |
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| 386 | ast::ptr< ast::Type > addCast = nullptr; |
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| 387 | if ( (fname == "?{}" || fname == "^?{}") && ( ! obj || ( obj && ! obj->bitfieldWidth ) ) ) { |
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| 388 | assert( dstParam->result ); |
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| 389 | addCast = dstParam->result; |
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| 390 | } |
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| 391 | |
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| 392 | std::vector< ast::ptr< ast::Stmt > > stmts; |
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| 393 | genCall( |
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| 394 | srcParam, dstParam, loc, fname, back_inserter( stmts ), obj->type, addCast, forward ); |
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| 395 | |
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| 396 | if ( stmts.empty() ) { |
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| 397 | return {}; |
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| 398 | } else if ( stmts.size() == 1 ) { |
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| 399 | const ast::Stmt * callStmt = stmts.front(); |
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| 400 | if ( addCast ) { |
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| 401 | // implicitly generated ctor/dtor calls should be wrapped so that later passes are |
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| 402 | // aware they were generated. |
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| 403 | callStmt = new ast::ImplicitCtorDtorStmt{ callStmt->location, callStmt }; |
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| 404 | } |
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| 405 | return callStmt; |
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| 406 | } else { |
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| 407 | assert( false ); |
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| 408 | return {}; |
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| 409 | } |
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| 410 | } |
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[972e6f7] | 411 | } // namespace SymTab |
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[6b0b624] | 412 | |
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| 413 | // Local Variables: // |
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| 414 | // tab-width: 4 // |
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| 415 | // mode: c++ // |
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| 416 | // compile-command: "make install" // |
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| 417 | // End: // |
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| 418 | |
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