| 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 | // FixFunction.cc --
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| 8 | //
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| 9 | // Author : Richard C. Bilson
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| 10 | // Created On : Sun May 17 16:19:49 2015
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| 11 | // Last Modified By : Peter A. Buhr
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| 12 | // Last Modified On : Mon Mar 6 23:36:59 2017
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| 13 | // Update Count : 6
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| 14 | //
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| 15 |
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| 16 | #include "FixFunction.h"
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| 17 |
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| 18 | #include <list> // for list
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| 19 |
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| 20 | #include "Common/utility.h" // for maybeClone
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| 21 | #include "SynTree/Declaration.h" // for FunctionDecl, ObjectDecl, Declarati...
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| 22 | #include "SynTree/Expression.h" // for Expression
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| 23 | #include "SynTree/Type.h" // for ArrayType, PointerType, Type, Basic...
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| 24 |
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| 25 | namespace SymTab {
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| 26 | FixFunction::FixFunction() : isVoid( false ) {}
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| 27 |
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| 28 |
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| 29 | DeclarationWithType * FixFunction::postmutate(FunctionDecl *functionDecl) {
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| 30 | // can't delete function type because it may contain assertions, so transfer ownership to new object
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| 31 | ObjectDecl *pointer = new ObjectDecl( functionDecl->name, functionDecl->get_storageClasses(), functionDecl->linkage, nullptr, new PointerType( Type::Qualifiers(), functionDecl->type ), nullptr, functionDecl->attributes );
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| 32 | functionDecl->attributes.clear();
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| 33 | functionDecl->type = nullptr;
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| 34 | delete functionDecl;
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| 35 | return pointer;
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| 36 | }
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| 37 |
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| 38 | // xxx - this passes on void[], e.g.
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| 39 | // void foo(void [10]);
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| 40 | // does not cause an error
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| 41 |
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| 42 | Type * FixFunction::postmutate(ArrayType *arrayType) {
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| 43 | // need to recursively mutate the base type in order for multi-dimensional arrays to work.
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| 44 | PointerType *pointerType = new PointerType( arrayType->get_qualifiers(), arrayType->base, arrayType->dimension, arrayType->isVarLen, arrayType->isStatic );
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| 45 | arrayType->base = nullptr;
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| 46 | arrayType->dimension = nullptr;
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| 47 | delete arrayType;
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| 48 | return pointerType;
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| 49 | }
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| 50 |
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| 51 | void FixFunction::premutate(VoidType *) {
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| 52 | isVoid = true;
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| 53 | }
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| 54 |
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| 55 | void FixFunction::premutate(FunctionDecl *) { visit_children = false; }
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| 56 | void FixFunction::premutate(ArrayType *) { visit_children = false; }
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| 57 | void FixFunction::premutate(BasicType *) { visit_children = false; }
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| 58 | void FixFunction::premutate(PointerType *) { visit_children = false; }
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| 59 | void FixFunction::premutate(StructInstType *) { visit_children = false; }
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| 60 | void FixFunction::premutate(UnionInstType *) { visit_children = false; }
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| 61 | void FixFunction::premutate(EnumInstType *) { visit_children = false; }
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| 62 | void FixFunction::premutate(TraitInstType *) { visit_children = false; }
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| 63 | void FixFunction::premutate(TypeInstType *) { visit_children = false; }
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| 64 | void FixFunction::premutate(TupleType *) { visit_children = false; }
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| 65 | void FixFunction::premutate(VarArgsType *) { visit_children = false; }
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| 66 | void FixFunction::premutate(ZeroType *) { visit_children = false; }
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| 67 | void FixFunction::premutate(OneType *) { visit_children = false; }
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| 68 |
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| 69 | bool fixFunction( DeclarationWithType *& dwt ) {
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| 70 | PassVisitor<FixFunction> fixer;
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| 71 | dwt = dwt->acceptMutator( fixer );
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| 72 | return fixer.pass.isVoid;
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| 73 | }
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| 74 | } // namespace SymTab
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| 75 |
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| 76 | // Local Variables: //
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| 77 | // tab-width: 4 //
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| 78 | // mode: c++ //
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| 79 | // compile-command: "make install" //
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| 80 | // End: //
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