[2bb4a01] | 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 | // Stmt.hpp -- |
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| 8 | // |
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| 9 | // Author : Aaron B. Moss |
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[1e97287] | 10 | // Created On : Wed May 8 13:00:00 2019 |
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| 11 | // Last Modified By : Andrew Beach |
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[675d816] | 12 | // Last Modified On : Fri May 17 12:45:00 2019 |
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| 13 | // Update Count : 5 |
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[2bb4a01] | 14 | // |
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| 15 | |
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| 16 | #pragma once |
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| 17 | |
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| 18 | #include <list> |
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| 19 | #include <utility> // for move |
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| 20 | #include <vector> |
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| 21 | |
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| 22 | #include "Label.hpp" |
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| 23 | #include "Node.hpp" // for node, ptr |
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| 24 | #include "ParseNode.hpp" |
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| 25 | #include "Visitor.hpp" |
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| 26 | #include "Common/CodeLocation.h" |
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| 27 | |
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[f3cc5b6] | 28 | // Must be included in *all* AST classes; should be #undef'd at the end of the file |
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[acd80b4] | 29 | #define MUTATE_FRIEND template<typename node_t> friend node_t * mutate(const node_t * node); |
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[f3cc5b6] | 30 | |
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[2bb4a01] | 31 | namespace ast { |
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| 32 | |
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| 33 | class Expr; |
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| 34 | |
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| 35 | /// Base statement node |
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| 36 | class Stmt : public ParseNode { |
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| 37 | public: |
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| 38 | std::vector<Label> labels; |
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| 39 | |
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[f3cc5b6] | 40 | Stmt( const CodeLocation & loc, std::vector<Label> && labels = {} ) |
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[2bb4a01] | 41 | : ParseNode(loc), labels(std::move(labels)) {} |
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| 42 | |
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| 43 | Stmt(const Stmt& o) : ParseNode(o), labels(o.labels) {} |
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| 44 | |
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[f3cc5b6] | 45 | const Stmt * accept( Visitor & v ) const override = 0; |
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[2bb4a01] | 46 | private: |
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[f3cc5b6] | 47 | Stmt * clone() const override = 0; |
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| 48 | MUTATE_FRIEND |
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[2bb4a01] | 49 | }; |
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| 50 | |
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| 51 | /// Compound statement `{ ... }` |
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| 52 | class CompoundStmt final : public Stmt { |
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| 53 | public: |
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| 54 | std::list<ptr<Stmt>> kids; |
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| 55 | |
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[d66e7b7] | 56 | CompoundStmt(const CodeLocation & loc, std::list<ptr<Stmt>> && ks = {}, |
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| 57 | std::vector<Label>&& labels = {} ) |
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| 58 | : Stmt(loc, std::move(labels)), kids(std::move(ks)) {} |
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[2bb4a01] | 59 | |
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| 60 | CompoundStmt( const CompoundStmt& o ); |
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| 61 | CompoundStmt( CompoundStmt&& o ) = default; |
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| 62 | |
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[f3cc5b6] | 63 | void push_back( Stmt * s ) { kids.emplace_back( s ); } |
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| 64 | void push_front( Stmt * s ) { kids.emplace_front( s ); } |
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[2bb4a01] | 65 | |
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[f3cc5b6] | 66 | const CompoundStmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[2bb4a01] | 67 | private: |
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[f3cc5b6] | 68 | CompoundStmt * clone() const override { return new CompoundStmt{ *this }; } |
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| 69 | MUTATE_FRIEND |
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[2bb4a01] | 70 | }; |
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| 71 | |
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| 72 | /// Empty statment `;` |
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| 73 | class NullStmt final : public Stmt { |
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| 74 | public: |
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[f3cc5b6] | 75 | NullStmt( const CodeLocation & loc, std::vector<Label> && labels = {} ) |
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[2bb4a01] | 76 | : Stmt(loc, std::move(labels)) {} |
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| 77 | |
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[f3cc5b6] | 78 | const NullStmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[2bb4a01] | 79 | private: |
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[f3cc5b6] | 80 | NullStmt * clone() const override { return new NullStmt{ *this }; } |
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| 81 | MUTATE_FRIEND |
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[2bb4a01] | 82 | }; |
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| 83 | |
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| 84 | /// Expression wrapped by statement |
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| 85 | class ExprStmt final : public Stmt { |
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| 86 | public: |
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| 87 | ptr<Expr> expr; |
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| 88 | |
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[6f8e87d] | 89 | ExprStmt( const CodeLocation& loc, const Expr* e, std::vector<Label>&& labels = {} ) |
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| 90 | : Stmt(loc, std::move(labels)), expr(e) {} |
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[2bb4a01] | 91 | |
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[f3cc5b6] | 92 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[2bb4a01] | 93 | private: |
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[23f99e1] | 94 | ExprStmt * clone() const override { return new ExprStmt{ *this }; } |
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[f3cc5b6] | 95 | MUTATE_FRIEND |
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[2bb4a01] | 96 | }; |
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| 97 | |
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[1e97287] | 98 | class AsmStmt final : public Stmt { |
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| 99 | public: |
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| 100 | bool isVolatile; |
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| 101 | ptr<Expr> instruction; |
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| 102 | std::vector<ptr<Expr>> output, input; |
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| 103 | std::vector<ptr<ConstantExpr>> clobber; |
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| 104 | std::vector<Label> gotoLabels; |
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| 105 | |
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[f3cc5b6] | 106 | AsmStmt( const CodeLocation & loc, bool isVolatile, const Expr * instruction, |
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| 107 | std::vector<ptr<Expr>> && output, std::vector<ptr<Expr>> && input, |
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| 108 | std::vector<ptr<ConstantExpr>> && clobber, std::vector<Label> && gotoLabels, |
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| 109 | std::vector<Label> && labels = {}) |
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[1e97287] | 110 | : Stmt(loc, std::move(labels)), isVolatile(isVolatile), instruction(instruction), |
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| 111 | output(std::move(output)), input(std::move(input)), clobber(std::move(clobber)), |
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| 112 | gotoLabels(std::move(gotoLabels)) {} |
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| 113 | |
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[f3cc5b6] | 114 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 115 | private: |
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[f3cc5b6] | 116 | AsmStmt * clone() const override { return new AsmStmt{ *this }; } |
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| 117 | MUTATE_FRIEND |
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[1e97287] | 118 | }; |
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| 119 | |
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| 120 | class DirectiveStmt final : public Stmt { |
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| 121 | public: |
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| 122 | std::string directive; |
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| 123 | |
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[f3cc5b6] | 124 | DirectiveStmt( const CodeLocation & loc, const std::string & directive, |
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| 125 | std::vector<Label> && labels = {} ) |
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[1e97287] | 126 | : Stmt(loc, std::move(labels)), directive(directive) {} |
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| 127 | |
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[f3cc5b6] | 128 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 129 | private: |
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[f3cc5b6] | 130 | DirectiveStmt * clone() const override { return new DirectiveStmt{ *this }; } |
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| 131 | MUTATE_FRIEND |
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[1e97287] | 132 | }; |
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| 133 | |
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| 134 | class IfStmt final : public Stmt { |
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| 135 | public: |
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| 136 | ptr<Expr> cond; |
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| 137 | ptr<Stmt> thenPart; |
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| 138 | ptr<Stmt> elsePart; |
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| 139 | std::vector<ptr<Stmt>> inits; |
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| 140 | |
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[f3cc5b6] | 141 | IfStmt( const CodeLocation & loc, const Expr * cond, const Stmt * thenPart, |
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| 142 | Stmt * const elsePart, std::vector<ptr<Stmt>> && inits, |
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| 143 | std::vector<Label> && labels = {} ) |
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[1e97287] | 144 | : Stmt(loc, std::move(labels)), cond(cond), thenPart(thenPart), elsePart(elsePart), |
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| 145 | inits(std::move(inits)) {} |
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| 146 | |
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[f3cc5b6] | 147 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 148 | private: |
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[f3cc5b6] | 149 | IfStmt * clone() const override { return new IfStmt{ *this }; } |
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| 150 | MUTATE_FRIEND |
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[1e97287] | 151 | }; |
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| 152 | |
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| 153 | class SwitchStmt final : public Stmt { |
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| 154 | public: |
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| 155 | ptr<Expr> cond; |
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| 156 | std::vector<ptr<Stmt>> stmts; |
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| 157 | |
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[f3cc5b6] | 158 | SwitchStmt( const CodeLocation & loc, const Expr * cond, std::vector<ptr<Stmt>> && stmts, |
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| 159 | std::vector<Label> && labels = {} ) |
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[1e97287] | 160 | : Stmt(loc, std::move(labels)), cond(cond), stmts(std::move(stmts)) {} |
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| 161 | |
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[f3cc5b6] | 162 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 163 | private: |
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[f3cc5b6] | 164 | SwitchStmt * clone() const override { return new SwitchStmt{ *this }; } |
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| 165 | MUTATE_FRIEND |
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[1e97287] | 166 | }; |
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| 167 | |
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| 168 | class CaseStmt final : public Stmt { |
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| 169 | public: |
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| 170 | ptr<Expr> cond; |
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| 171 | std::vector<ptr<Stmt>> stmts; |
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| 172 | |
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[f3cc5b6] | 173 | CaseStmt( const CodeLocation & loc, const Expr * cond, std::vector<ptr<Stmt>> && stmts, |
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| 174 | std::vector<Label> && labels = {} ) |
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| 175 | : Stmt(loc, std::move(labels)), cond(cond), stmts(std::move(stmts)) {} |
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[1e97287] | 176 | |
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[675d816] | 177 | bool isDefault() const { return !cond; } |
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[1e97287] | 178 | |
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[f3cc5b6] | 179 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 180 | private: |
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[f3cc5b6] | 181 | CaseStmt * clone() const override { return new CaseStmt{ *this }; } |
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| 182 | MUTATE_FRIEND |
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[1e97287] | 183 | }; |
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| 184 | |
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| 185 | class WhileStmt final : public Stmt { |
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| 186 | public: |
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| 187 | ptr<Expr> cond; |
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| 188 | ptr<Stmt> body; |
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| 189 | std::vector<ptr<Stmt>> inits; |
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| 190 | bool isDoWhile; |
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| 191 | |
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[f3cc5b6] | 192 | WhileStmt( const CodeLocation & loc, const Expr * cond, const Stmt * body, |
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| 193 | std::vector<ptr<Stmt>> && inits, bool isDoWhile = false, std::vector<Label> && labels = {} ) |
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[1e97287] | 194 | : Stmt(loc, std::move(labels)), cond(cond), body(body), inits(std::move(inits)), |
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| 195 | isDoWhile(isDoWhile) {} |
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| 196 | |
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[f3cc5b6] | 197 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 198 | private: |
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[f3cc5b6] | 199 | WhileStmt * clone() const override { return new WhileStmt{ *this }; } |
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| 200 | MUTATE_FRIEND |
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[1e97287] | 201 | }; |
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| 202 | |
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| 203 | class ForStmt final : public Stmt { |
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| 204 | public: |
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| 205 | std::vector<ptr<Stmt>> inits; |
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| 206 | ptr<Expr> cond; |
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[8a5530c] | 207 | ptr<Expr> inc; |
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[1e97287] | 208 | ptr<Stmt> body; |
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| 209 | |
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[f3cc5b6] | 210 | ForStmt( const CodeLocation & loc, std::vector<ptr<Stmt>> && inits, const Expr * cond, |
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| 211 | const Expr * inc, const Stmt * body, std::vector<Label> && labels = {} ) |
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[8a5530c] | 212 | : Stmt(loc, std::move(labels)), inits(std::move(inits)), cond(cond), inc(inc), |
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[1e97287] | 213 | body(body) {} |
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| 214 | |
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[f3cc5b6] | 215 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 216 | private: |
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[f3cc5b6] | 217 | ForStmt * clone() const override { return new ForStmt{ *this }; } |
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| 218 | MUTATE_FRIEND |
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[1e97287] | 219 | }; |
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| 220 | |
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| 221 | class BranchStmt final : public Stmt { |
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| 222 | public: |
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| 223 | enum Kind { Goto, Break, Continue, FallThrough, FallThroughDefault }; |
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| 224 | static constexpr size_t kindEnd = 1 + (size_t)FallThroughDefault; |
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| 225 | |
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| 226 | const Label originalTarget; |
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| 227 | Label target; |
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| 228 | ptr<Expr> computedTarget; |
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| 229 | Kind kind; |
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| 230 | |
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[f3cc5b6] | 231 | BranchStmt( const CodeLocation & loc, Kind kind, Label target, |
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| 232 | std::vector<Label> && labels = {} ); |
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| 233 | BranchStmt( const CodeLocation & loc, const Expr * computedTarget, |
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| 234 | std::vector<Label> && labels = {} ) |
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[1e97287] | 235 | : Stmt(loc, std::move(labels)), originalTarget(loc), target(loc), |
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| 236 | computedTarget(computedTarget), kind(Goto) {} |
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| 237 | |
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| 238 | const char * kindName() { return kindNames[kind]; } |
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| 239 | |
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[f3cc5b6] | 240 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 241 | private: |
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[f3cc5b6] | 242 | BranchStmt * clone() const override { return new BranchStmt{ *this }; } |
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| 243 | MUTATE_FRIEND |
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[8a5530c] | 244 | |
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[1e97287] | 245 | static const char * kindNames[kindEnd]; |
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| 246 | }; |
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| 247 | |
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| 248 | class ReturnStmt final : public Stmt { |
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| 249 | public: |
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| 250 | ptr<Expr> expr; |
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| 251 | |
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[f3cc5b6] | 252 | ReturnStmt( const CodeLocation & loc, const Expr * expr, std::vector<Label> && labels = {} ) |
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[1e97287] | 253 | : Stmt(loc, std::move(labels)), expr(expr) {} |
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| 254 | |
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[f3cc5b6] | 255 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 256 | private: |
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[f3cc5b6] | 257 | ReturnStmt * clone() const override { return new ReturnStmt{ *this }; } |
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| 258 | MUTATE_FRIEND |
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[1e97287] | 259 | }; |
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| 260 | |
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| 261 | class ThrowStmt final : public Stmt { |
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| 262 | public: |
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| 263 | enum Kind { Terminate, Resume }; |
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| 264 | |
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| 265 | ptr<Expr> expr; |
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| 266 | ptr<Expr> target; |
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| 267 | Kind kind; |
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| 268 | |
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[f3cc5b6] | 269 | ThrowStmt( const CodeLocation & loc, Kind kind, const Expr * expr, const Expr * target, |
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| 270 | std::vector<Label> && labels = {} ) |
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[1e97287] | 271 | : Stmt(loc, std::move(labels)), expr(expr), target(target), kind(kind) {} |
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| 272 | |
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[f3cc5b6] | 273 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 274 | private: |
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[f3cc5b6] | 275 | ThrowStmt * clone() const override { return new ThrowStmt{ *this }; } |
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| 276 | MUTATE_FRIEND |
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[1e97287] | 277 | }; |
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| 278 | |
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| 279 | class TryStmt final : public Stmt { |
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| 280 | public: |
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| 281 | ptr<CompoundStmt> body; |
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| 282 | std::vector<ptr<CatchStmt>> handlers; |
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| 283 | ptr<FinallyStmt> finally; |
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| 284 | |
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[f3cc5b6] | 285 | TryStmt( const CodeLocation & loc, const CompoundStmt * body, |
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| 286 | std::vector<ptr<CatchStmt>> && handlers, const FinallyStmt * finally, |
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| 287 | std::vector<Label> && labels = {} ) |
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[1e97287] | 288 | : Stmt(loc, std::move(labels)), body(body), handlers(std::move(handlers)), finally(finally) {} |
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| 289 | |
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[f3cc5b6] | 290 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 291 | private: |
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[f3cc5b6] | 292 | TryStmt * clone() const override { return new TryStmt{ *this }; } |
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| 293 | MUTATE_FRIEND |
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[1e97287] | 294 | }; |
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| 295 | |
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| 296 | class CatchStmt final : public Stmt { |
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| 297 | public: |
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| 298 | enum Kind { Terminate, Resume }; |
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| 299 | |
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| 300 | ptr<Decl> decl; |
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| 301 | ptr<Expr> cond; |
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| 302 | ptr<Stmt> body; |
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| 303 | Kind kind; |
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| 304 | |
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[f3cc5b6] | 305 | CatchStmt( const CodeLocation & loc, Kind kind, const Decl * decl, const Expr * cond, |
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| 306 | const Stmt * body, std::vector<Label> && labels = {} ) |
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[1e97287] | 307 | : Stmt(loc, std::move(labels)), decl(decl), cond(cond), body(body), kind(kind) {} |
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| 308 | |
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[f3cc5b6] | 309 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 310 | private: |
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[f3cc5b6] | 311 | CatchStmt * clone() const override { return new CatchStmt{ *this }; } |
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| 312 | MUTATE_FRIEND |
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[1e97287] | 313 | }; |
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| 314 | |
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| 315 | class FinallyStmt final : public Stmt { |
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| 316 | public: |
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| 317 | ptr<CompoundStmt> body; |
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| 318 | |
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[f3cc5b6] | 319 | FinallyStmt( const CodeLocation & loc, const CompoundStmt * body, |
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| 320 | std::vector<Label> && labels = {} ) |
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[1e97287] | 321 | : Stmt(loc, std::move(labels)), body(body) {} |
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| 322 | |
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[f3cc5b6] | 323 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 324 | private: |
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[f3cc5b6] | 325 | FinallyStmt * clone() const override { return new FinallyStmt{ *this }; } |
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| 326 | MUTATE_FRIEND |
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[1e97287] | 327 | }; |
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[2bb4a01] | 328 | |
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[1e97287] | 329 | class WaitForStmt final : public Stmt { |
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| 330 | public: |
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| 331 | struct Target { |
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| 332 | ptr<Expr> function; |
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| 333 | std::vector<ptr<Expr>> arguments; |
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| 334 | }; |
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| 335 | |
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| 336 | struct Clause { |
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| 337 | Target target; |
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| 338 | ptr<Stmt> stmt; |
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| 339 | ptr<Expr> cond; |
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| 340 | }; |
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| 341 | |
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| 342 | struct Timeout { |
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| 343 | ptr<Expr> time; |
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| 344 | ptr<Stmt> stmt; |
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| 345 | ptr<Expr> cond; |
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| 346 | }; |
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| 347 | |
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| 348 | struct OrElse { |
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| 349 | ptr<Stmt> stmt; |
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| 350 | ptr<Expr> cond; |
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| 351 | }; |
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| 352 | |
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| 353 | std::vector<Clause> clauses; |
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| 354 | Timeout timeout; |
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| 355 | OrElse orElse; |
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| 356 | |
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[f3cc5b6] | 357 | WaitForStmt( const CodeLocation & loc, std::vector<Label> && labels = {} ) |
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[1e97287] | 358 | : Stmt(loc, std::move(labels)) {} |
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| 359 | |
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[f3cc5b6] | 360 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 361 | private: |
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[f3cc5b6] | 362 | WaitForStmt * clone() const override { return new WaitForStmt{ *this }; } |
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| 363 | MUTATE_FRIEND |
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[1e97287] | 364 | }; |
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| 365 | |
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| 366 | class WithStmt final : public Stmt { |
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| 367 | public: |
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| 368 | std::vector<ptr<Expr>> exprs; |
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| 369 | ptr<Stmt> stmt; |
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| 370 | |
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[f3cc5b6] | 371 | WithStmt( const CodeLocation & loc, std::vector<ptr<Expr>> && exprs, const Stmt * stmt, |
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| 372 | std::vector<Label> && labels = {} ) |
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[1e97287] | 373 | : Stmt(loc, std::move(labels)), exprs(std::move(exprs)), stmt(stmt) {} |
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| 374 | |
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[f3cc5b6] | 375 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 376 | private: |
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[f3cc5b6] | 377 | WithStmt * clone() const override { return new WithStmt{ *this }; } |
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| 378 | MUTATE_FRIEND |
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[1e97287] | 379 | }; |
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| 380 | |
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| 381 | class DeclStmt final : public Stmt { |
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| 382 | public: |
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| 383 | ptr<Decl> decl; |
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| 384 | |
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[f3cc5b6] | 385 | DeclStmt( const CodeLocation & loc, const Decl * decl, std::vector<Label> && labels = {} ) |
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[1e97287] | 386 | : Stmt(loc, std::move(labels)), decl(decl) {} |
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| 387 | |
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[f3cc5b6] | 388 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 389 | private: |
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[f3cc5b6] | 390 | DeclStmt * clone() const override { return new DeclStmt{ *this }; } |
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| 391 | MUTATE_FRIEND |
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[1e97287] | 392 | }; |
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| 393 | |
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| 394 | class ImplicitCtorDtorStmt final : public Stmt { |
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| 395 | public: |
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| 396 | readonly<Stmt> callStmt; |
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| 397 | |
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[f3cc5b6] | 398 | ImplicitCtorDtorStmt( const CodeLocation & loc, const Stmt * callStmt, |
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| 399 | std::vector<Label> && labels = {} ) |
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[1e97287] | 400 | : Stmt(loc, std::move(labels)), callStmt(callStmt) {} |
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| 401 | |
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[f3cc5b6] | 402 | const Stmt * accept( Visitor & v ) const override { return v.visit( this ); } |
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[1e97287] | 403 | private: |
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[f3cc5b6] | 404 | ImplicitCtorDtorStmt * clone() const override { return new ImplicitCtorDtorStmt{ *this }; } |
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| 405 | MUTATE_FRIEND |
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[1e97287] | 406 | }; |
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[2bb4a01] | 407 | |
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| 408 | } |
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| 409 | |
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[f3cc5b6] | 410 | #undef MUTATE_FRIEND |
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| 411 | |
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[2bb4a01] | 412 | // Local Variables: // |
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| 413 | // tab-width: 4 // |
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| 414 | // mode: c++ // |
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| 415 | // compile-command: "make install" // |
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[1e97287] | 416 | // End: // |
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