| 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 | // MLEMutator.h --
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| 8 | //
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| 9 | // Author : Rodolfo G. Esteves
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| 10 | // Created On : Mon May 18 07:44:20 2015
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| 11 | // Last Modified By : Peter A. Buhr
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| 12 | // Last Modified On : Wed Jul 6 16:49:52 2016
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| 13 | // Update Count : 31
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| 14 | //
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| 15 |
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| 16 | #ifndef MLE_MUTATOR_H
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| 17 | #define MLE_MUTATOR_H
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| 18 |
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| 19 | #include <map>
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| 20 | #include <list>
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| 21 |
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| 22 | #include "Common/utility.h"
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| 23 | #include "SynTree/SynTree.h"
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| 24 | #include "SynTree/Mutator.h"
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| 25 | #include "SynTree/Label.h"
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| 26 |
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| 27 | #include "LabelGenerator.h"
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| 28 |
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| 29 | namespace ControlStruct {
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| 30 | class MLEMutator : public Mutator {
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| 31 | class Entry;
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| 32 | typedef Mutator Parent;
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| 33 | public:
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| 34 | MLEMutator( std::map<Label, Statement *> *t, LabelGenerator *gen = 0 ) : targetTable( t ), breakLabel(std::string("")), generator( gen ) {}
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| 35 | ~MLEMutator();
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| 36 |
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| 37 | CompoundStmt *mutate( CompoundStmt *cmpndStmt );
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| 38 | virtual Statement *mutate( WhileStmt *whileStmt ) override;
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| 39 | virtual Statement *mutate( ForStmt *forStmt ) override;
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| 40 | virtual Statement *mutate( BranchStmt *branchStmt ) throw ( SemanticError ) override;
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| 41 |
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| 42 | virtual Statement *mutate( CaseStmt *caseStmt ) override;
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| 43 | virtual Statement *mutate( IfStmt *ifStmt ) override;
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| 44 | virtual Statement *mutate( SwitchStmt *switchStmt ) override;
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| 45 | virtual Statement *mutate( ChooseStmt *switchStmt ) override;
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| 46 |
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| 47 | Statement *mutateLoop( Statement *bodyLoop, Entry &e );
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| 48 |
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| 49 | Label &get_breakLabel() { return breakLabel; }
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| 50 | void set_breakLabel( Label newValue ) { breakLabel = newValue; }
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| 51 | private:
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| 52 | class Entry {
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| 53 | public:
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| 54 | explicit Entry( Statement *_loop, Label _breakExit, Label _contExit = Label("") ) :
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| 55 | loop( _loop ), breakExit( _breakExit ), contExit( _contExit ), breakUsed(false), contUsed(false) {}
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| 56 |
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| 57 | bool operator==( const Statement *stmt ) { return ( loop == stmt ); }
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| 58 | bool operator!=( const Statement *stmt ) { return ( loop != stmt ); }
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| 59 |
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| 60 | bool operator==( const Entry &other ) { return ( loop == other.get_controlStructure() ); }
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| 61 |
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| 62 | Statement *get_controlStructure() const { return loop; }
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| 63 |
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| 64 | Label useContExit() { contUsed = true; return contExit; }
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| 65 | Label useBreakExit() { breakUsed = true; return breakExit; }
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| 66 |
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| 67 | bool isContUsed() const { return contUsed; }
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| 68 | bool isBreakUsed() const { return breakUsed; }
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| 69 | private:
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| 70 | Statement *loop;
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| 71 | Label breakExit, contExit;
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| 72 | bool breakUsed, contUsed;
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| 73 | };
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| 74 |
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| 75 | std::map< Label, Statement * > *targetTable;
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| 76 | std::list< Entry > enclosingControlStructures;
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| 77 | Label breakLabel;
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| 78 | LabelGenerator *generator;
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| 79 |
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| 80 | template< typename LoopClass >
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| 81 | Statement *handleLoopStmt( LoopClass *loopStmt );
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| 82 |
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| 83 | template< typename IfClass >
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| 84 | Statement *handleIfStmt( IfClass *switchStmt );
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| 85 |
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| 86 | template< typename SwitchClass >
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| 87 | Statement *handleSwitchStmt( SwitchClass *switchStmt );
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| 88 |
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| 89 | void fixBlock( std::list< Statement * > &kids );
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| 90 | };
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| 91 | } // namespace ControlStruct
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| 92 |
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| 93 | #endif // MLE_MUTATOR_H
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| 94 |
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| 95 | // Local Variables: //
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| 96 | // tab-width: 4 //
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| 97 | // mode: c++ //
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| 98 | // compile-command: "make install" //
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| 99 | // End: //
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