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Diffstat (limited to 'include/clang/AST/StmtIterator.h')
-rw-r--r-- | include/clang/AST/StmtIterator.h | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/include/clang/AST/StmtIterator.h b/include/clang/AST/StmtIterator.h deleted file mode 100644 index 81f8ad43..0000000 --- a/include/clang/AST/StmtIterator.h +++ /dev/null @@ -1,144 +0,0 @@ -//===--- StmtIterator.h - Iterators for Statements --------------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file defines the StmtIterator and ConstStmtIterator classes. -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_CLANG_AST_STMTITERATOR_H -#define LLVM_CLANG_AST_STMTITERATOR_H - -#include "llvm/Support/Compiler.h" -#include "llvm/Support/DataTypes.h" -#include <cassert> -#include <cstddef> -#include <iterator> -#include <utility> - -namespace clang { - -class Stmt; -class Decl; -class VariableArrayType; - -class StmtIteratorBase { -protected: - enum { StmtMode = 0x0, SizeOfTypeVAMode = 0x1, DeclGroupMode = 0x2, - Flags = 0x3 }; - - union { - Stmt **stmt; - Decl **DGI; - }; - uintptr_t RawVAPtr; - Decl **DGE; - - bool inDeclGroup() const { - return (RawVAPtr & Flags) == DeclGroupMode; - } - - bool inSizeOfTypeVA() const { - return (RawVAPtr & Flags) == SizeOfTypeVAMode; - } - - bool inStmt() const { - return (RawVAPtr & Flags) == StmtMode; - } - - const VariableArrayType *getVAPtr() const { - return reinterpret_cast<const VariableArrayType*>(RawVAPtr & ~Flags); - } - - void setVAPtr(const VariableArrayType *P) { - assert (inDeclGroup() || inSizeOfTypeVA()); - RawVAPtr = reinterpret_cast<uintptr_t>(P) | (RawVAPtr & Flags); - } - - void NextDecl(bool ImmediateAdvance = true); - bool HandleDecl(Decl* D); - void NextVA(); - - Stmt*& GetDeclExpr() const; - - StmtIteratorBase(Stmt **s) : stmt(s), RawVAPtr(0) {} - StmtIteratorBase(const VariableArrayType *t); - StmtIteratorBase(Decl **dgi, Decl **dge); - StmtIteratorBase() : stmt(nullptr), RawVAPtr(0) {} -}; - - -template <typename DERIVED, typename REFERENCE> -class StmtIteratorImpl : public StmtIteratorBase, - public std::iterator<std::forward_iterator_tag, - REFERENCE, ptrdiff_t, - REFERENCE, REFERENCE> { -protected: - StmtIteratorImpl(const StmtIteratorBase& RHS) : StmtIteratorBase(RHS) {} -public: - StmtIteratorImpl() {} - StmtIteratorImpl(Stmt **s) : StmtIteratorBase(s) {} - StmtIteratorImpl(Decl **dgi, Decl **dge) : StmtIteratorBase(dgi, dge) {} - StmtIteratorImpl(const VariableArrayType *t) : StmtIteratorBase(t) {} - - DERIVED& operator++() { - if (inStmt()) - ++stmt; - else if (getVAPtr()) - NextVA(); - else - NextDecl(); - - return static_cast<DERIVED&>(*this); - } - - DERIVED operator++(int) { - DERIVED tmp = static_cast<DERIVED&>(*this); - operator++(); - return tmp; - } - - bool operator==(const DERIVED& RHS) const { - return stmt == RHS.stmt && DGI == RHS.DGI && RawVAPtr == RHS.RawVAPtr; - } - - bool operator!=(const DERIVED& RHS) const { - return stmt != RHS.stmt || DGI != RHS.DGI || RawVAPtr != RHS.RawVAPtr; - } - - REFERENCE operator*() const { - return inStmt() ? *stmt : GetDeclExpr(); - } - - REFERENCE operator->() const { return operator*(); } -}; - -struct StmtIterator : public StmtIteratorImpl<StmtIterator,Stmt*&> { - explicit StmtIterator() : StmtIteratorImpl<StmtIterator,Stmt*&>() {} - - StmtIterator(Stmt** S) : StmtIteratorImpl<StmtIterator,Stmt*&>(S) {} - - StmtIterator(Decl** dgi, Decl** dge) - : StmtIteratorImpl<StmtIterator,Stmt*&>(dgi, dge) {} - - StmtIterator(const VariableArrayType *t) - : StmtIteratorImpl<StmtIterator,Stmt*&>(t) {} -}; - -struct ConstStmtIterator : public StmtIteratorImpl<ConstStmtIterator, - const Stmt*> { - explicit ConstStmtIterator() : - StmtIteratorImpl<ConstStmtIterator,const Stmt*>() {} - - ConstStmtIterator(const StmtIterator& RHS) : - StmtIteratorImpl<ConstStmtIterator,const Stmt*>(RHS) {} -}; - -} // end namespace clang - -#endif |