diff options
Diffstat (limited to 'include/clang/Analysis/CFG.h')
| -rw-r--r-- | include/clang/Analysis/CFG.h | 45 |
1 files changed, 38 insertions, 7 deletions
diff --git a/include/clang/Analysis/CFG.h b/include/clang/Analysis/CFG.h index dab718cbac..8b4e191776 100644 --- a/include/clang/Analysis/CFG.h +++ b/include/clang/Analysis/CFG.h @@ -57,9 +57,39 @@ namespace clang { /// &&, || expression that uses result of && or ||, RHS /// class CFGBlock { - typedef std::vector<Stmt*> StatementListTy; + class StatementList { + typedef std::vector<Stmt*> ImplTy; + ImplTy Impl; + public: + typedef std::reverse_iterator<ImplTy::iterator> iterator; + typedef std::reverse_iterator<ImplTy::const_iterator> const_iterator; + typedef ImplTy::iterator reverse_iterator; + typedef ImplTy::const_iterator const_reverse_iterator; + + void push_back(Stmt *s) { Impl.push_back(s); } + Stmt *front() const { return Impl.back(); } + Stmt *back() const { return Impl.front(); } + + iterator begin() { return Impl.rbegin(); } + iterator end() { return Impl.rend(); } + const_iterator begin() const { return Impl.rbegin(); } + const_iterator end() const { return Impl.rend(); } + reverse_iterator rbegin() { return Impl.begin(); } + reverse_iterator rend() { return Impl.end(); } + const_reverse_iterator rbegin() const { return Impl.begin(); } + const_reverse_iterator rend() const { return Impl.end(); } + + Stmt* operator[](size_t i) const { + assert(i < Impl.size()); + return Impl[Impl.size() - 1 - i]; + } + + size_t size() const { return Impl.size(); } + bool empty() const { return Impl.empty(); } + }; + /// Stmts - The set of statements in the basic block. - StatementListTy Stmts; + StatementList Stmts; /// Label - An (optional) label that prefixes the executable /// statements in the block. When this variable is non-NULL, it is @@ -92,10 +122,10 @@ public: ~CFGBlock() {}; // Statement iterators - typedef StatementListTy::iterator iterator; - typedef StatementListTy::const_iterator const_iterator; - typedef std::reverse_iterator<const_iterator> const_reverse_iterator; - typedef std::reverse_iterator<iterator> reverse_iterator; + typedef StatementList::iterator iterator; + typedef StatementList::const_iterator const_iterator; + typedef StatementList::reverse_iterator reverse_iterator; + typedef StatementList::const_reverse_iterator const_reverse_iterator; Stmt* front() const { return Stmts.front(); } Stmt* back() const { return Stmts.back(); } @@ -113,7 +143,8 @@ public: unsigned size() const { return Stmts.size(); } bool empty() const { return Stmts.empty(); } - Stmt* operator[](size_t i) const { assert (i < size()); return Stmts[i]; } + Stmt* operator[](size_t i) const { return Stmts[i]; } + // CFG iterators typedef AdjacentBlocks::iterator pred_iterator; |