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 | // RemoveInit.h -- |
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8 | // |
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9 | // Author : Rob Schluntz |
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10 | // Created On : Fri May 13 11:26:36 2016 |
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11 | // Last Modified By : Rob Schluntz |
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12 | // Last Modified On : Fri May 13 11:35:36 2016 |
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13 | // Update Count : 3 |
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14 | // |
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15 | |
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16 | #ifndef INIT_TWEAK_H |
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17 | #define INIT_TWEAK_H |
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18 | |
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19 | #include <string> |
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20 | #include <list> |
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21 | |
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22 | #include "SynTree/SynTree.h" |
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23 | #include "SynTree/Declaration.h" |
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24 | #include "SynTree/Mutator.h" |
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25 | |
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26 | // helper functions for initialization |
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27 | namespace InitTweak { |
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28 | /// transform Initializer into an argument list that can be passed to a call expression |
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29 | std::list< Expression * > makeInitList( Initializer * init ); |
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30 | |
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31 | /// True if the resolver should try to construct objDecl |
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32 | bool tryConstruct( ObjectDecl * objDecl ); |
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33 | |
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34 | /// True if the Initializer contains designations |
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35 | bool isDesignated( Initializer * init ); |
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36 | |
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37 | /// Non-Null if expr is a call expression whose target function is intrinsic |
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38 | ApplicationExpr * isIntrinsicCallExpr( Expression * expr ); |
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39 | |
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40 | /// True if stmt is a call statement where the function called is intrinsic and takes one parameter. |
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41 | /// Intended to be used for default ctor/dtor calls, but might have use elsewhere. |
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42 | /// Currently has assertions that make it less than fully general. |
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43 | bool isInstrinsicSingleArgCallStmt( Statement * expr ); |
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44 | |
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45 | /// get all Ctor/Dtor call expressions from a Statement |
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46 | void collectCtorDtorCalls( Statement * stmt, std::list< Expression * > & matches ); |
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47 | |
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48 | /// get the Ctor/Dtor call expression from a Statement that looks like a generated ctor/dtor call |
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49 | Expression * getCtorDtorCall( Statement * stmt ); |
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50 | |
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51 | /// returns the name of the function being called |
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52 | std::string getFunctionName( Expression * expr ); |
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53 | |
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54 | /// returns the argument to a call expression in position N indexed from 0 |
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55 | Expression *& getCallArg( Expression * callExpr, unsigned int pos ); |
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56 | |
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57 | /// returns the base type of a PointerType or ArrayType, else returns NULL |
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58 | Type * getPointerBase( Type * ); |
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59 | |
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60 | /// returns the argument if it is a PointerType or ArrayType, else returns NULL |
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61 | Type * isPointerType( Type * ); |
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62 | |
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63 | /// returns true if expr is trivially a compile-time constant |
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64 | bool isConstExpr( Expression * expr ); |
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65 | bool isConstExpr( Initializer * init ); |
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66 | |
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67 | class InitExpander { |
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68 | public: |
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69 | // expand by stepping through init to get each list of arguments |
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70 | InitExpander( Initializer * init ); |
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71 | |
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72 | // always expand to expr |
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73 | InitExpander( Expression * expr ); |
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74 | |
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75 | // iterator-like interface |
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76 | std::list< Expression * > operator*(); |
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77 | InitExpander & operator++(); |
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78 | |
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79 | // builds statement which has the same semantics as a C-style list initializer |
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80 | // (for array initializers) using callExpr as the base expression to perform initialization |
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81 | Statement * buildListInit( UntypedExpr * callExpr ); |
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82 | void addArrayIndex( Expression * index, Expression * dimension ); |
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83 | void clearArrayIndices(); |
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84 | |
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85 | class ExpanderImpl; |
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86 | private: |
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87 | std::shared_ptr< ExpanderImpl > expander; |
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88 | std::list< Expression * > cur; |
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89 | |
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90 | // invariant: list of size 2N (elements come in pairs [index, dimension]) |
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91 | typedef std::list< Expression * > IndexList; |
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92 | IndexList indices; |
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93 | }; |
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94 | } // namespace |
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95 | |
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96 | #endif // INITTWEAK_GENINIT_H |
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97 | |
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98 | // Local Variables: // |
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99 | // tab-width: 4 // |
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100 | // mode: c++ // |
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101 | // compile-command: "make install" // |
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102 | // End: // |
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