diff options
Diffstat (limited to 'include/llvm/User.h')
-rw-r--r-- | include/llvm/User.h | 46 |
1 files changed, 42 insertions, 4 deletions
diff --git a/include/llvm/User.h b/include/llvm/User.h index 5d5460c..df303d0 100644 --- a/include/llvm/User.h +++ b/include/llvm/User.h @@ -31,8 +31,8 @@ template <class> struct OperandTraits; class User : public Value { - User(const User &); // Do not implement - void *operator new(size_t); // Do not implement + User(const User &) LLVM_DELETED_FUNCTION; + void *operator new(size_t) LLVM_DELETED_FUNCTION; template <unsigned> friend struct HungoffOperandTraits; virtual void anchor(); @@ -104,7 +104,7 @@ public: assert(i < NumOperands && "getOperandUse() out of range!"); return OperandList[i]; } - + unsigned getNumOperands() const { return NumOperands; } // --------------------------------------------------------------------------- @@ -118,6 +118,45 @@ public: inline op_iterator op_end() { return OperandList+NumOperands; } inline const_op_iterator op_end() const { return OperandList+NumOperands; } + /// Convenience iterator for directly iterating over the Values in the + /// OperandList + class value_op_iterator : public std::iterator<std::forward_iterator_tag, + Value*> { + op_iterator OI; + public: + explicit value_op_iterator(Use *U) : OI(U) {} + + bool operator==(const value_op_iterator &x) const { + return OI == x.OI; + } + bool operator!=(const value_op_iterator &x) const { + return !operator==(x); + } + + /// Iterator traversal: forward iteration only + value_op_iterator &operator++() { // Preincrement + ++OI; + return *this; + } + value_op_iterator operator++(int) { // Postincrement + value_op_iterator tmp = *this; ++*this; return tmp; + } + + /// Retrieve a pointer to the current Value. + Value *operator*() const { + return *OI; + } + + Value *operator->() const { return operator*(); } + }; + + inline value_op_iterator value_op_begin() { + return value_op_iterator(op_begin()); + } + inline value_op_iterator value_op_end() { + return value_op_iterator(op_end()); + } + // dropAllReferences() - This function is in charge of "letting go" of all // objects that this User refers to. This allows one to // 'delete' a whole class at a time, even though there may be circular @@ -137,7 +176,6 @@ public: void replaceUsesOfWith(Value *From, Value *To); // Methods for support type inquiry through isa, cast, and dyn_cast: - static inline bool classof(const User *) { return true; } static inline bool classof(const Value *V) { return isa<Instruction>(V) || isa<Constant>(V); } |