#ifndef SUPPORT_SMLOC_H
#define SUPPORT_SMLOC_H
+#include <cassert>
+
namespace llvm {
-// SMLoc - Represents a location in source code.
-class SMLoc {
+/// SMLoc - Represents a location in source code.
+class SMLoc {
const char *Ptr;
public:
SMLoc() : Ptr(0) {}
- SMLoc(const SMLoc &RHS) : Ptr(RHS.Ptr) {}
-
+
bool isValid() const { return Ptr != 0; }
-
+
bool operator==(const SMLoc &RHS) const { return RHS.Ptr == Ptr; }
bool operator!=(const SMLoc &RHS) const { return RHS.Ptr != Ptr; }
-
+
const char *getPointer() const { return Ptr; }
-
+
static SMLoc getFromPointer(const char *Ptr) {
SMLoc L;
L.Ptr = Ptr;
}
};
-}
+/// SMRange - Represents a range in source code. Note that unlike standard STL
+/// ranges, the locations specified are considered to be *inclusive*. For
+/// example, [X,X] *does* include X, it isn't an empty range.
+class SMRange {
+public:
+ SMLoc Start, End;
+
+ SMRange() {}
+ SMRange(SMLoc St, SMLoc En) : Start(St), End(En) {
+ assert(Start.isValid() == End.isValid() &&
+ "Start and end should either both be valid or both be invalid!");
+ }
+
+ bool isValid() const { return Start.isValid(); }
+};
+
+} // end namespace llvm
#endif