[llvm] r174120 - Add iterators to the AttributeSet class so that we can access the Attributes in a nice way.

[Bill Wendling]

Author: void
Date: Thu Jan 31 17:53:05 2013
New Revision: 174120

URL: http://llvm.org/viewvc/llvm-project?rev=174120&view=rev
Log:
Add iterators to the AttributeSet class so that we can access the Attributes in a nice way.

Modified:
    llvm/trunk/include/llvm/IR/Attributes.h
    llvm/trunk/lib/IR/Attributes.cpp

Modified: llvm/trunk/include/llvm/IR/Attributes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/Attributes.h?rev=174120&r1=174119&r2=174120&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IR/Attributes.h (original)
+++ llvm/trunk/include/llvm/IR/Attributes.h Thu Jan 31 17:53:05 2013
@@ -270,6 +270,11 @@ public:
   /// \brief Return the attributes at the index as a string.
   std::string getAsString(unsigned Index) const;
 
+  typedef ArrayRef<Attribute>::iterator iterator;
+
+  iterator begin(unsigned Idx);
+  iterator end(unsigned Idx);
+
   /// operator==/!= - Provide equality predicates.
   bool operator==(const AttributeSet &RHS) const {
     return pImpl == RHS.pImpl;

Modified: llvm/trunk/lib/IR/Attributes.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/Attributes.cpp?rev=174120&r1=174119&r2=174120&view=diff
==============================================================================
--- llvm/trunk/lib/IR/Attributes.cpp (original)
+++ llvm/trunk/lib/IR/Attributes.cpp Thu Jan 31 17:53:05 2013
@@ -740,6 +740,18 @@ AttributeSetNode *AttributeSet::getAttri
   return 0;
 }
 
+AttributeSet::iterator AttributeSet::begin(unsigned Idx) {
+  if (!pImpl)
+    return ArrayRef<Attribute>().begin();
+  return pImpl->begin(Idx);
+}
+
+AttributeSet::iterator AttributeSet::end(unsigned Idx) {
+  if (!pImpl)
+    return ArrayRef<Attribute>().end();
+  return pImpl->begin(Idx);
+}
+
 //===----------------------------------------------------------------------===//
 // AttributeSet Introspection Methods
 //===----------------------------------------------------------------------===//