1 //===- SMLoc.h - Source location for use with diagnostics -------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file declares the SMLoc class. This class encapsulates a location in 11 // source code for use in diagnostics. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef SUPPORT_SMLOC_H 16 #define SUPPORT_SMLOC_H 17 18 #include <cassert> 19 20 namespace llvm { 21 22 /// SMLoc - Represents a location in source code. 23 class SMLoc { 24 const char *Ptr; 25 public: 26 SMLoc() : Ptr(0) {} 27 SMLoc(const SMLoc &RHS) : Ptr(RHS.Ptr) {} 28 29 bool isValid() const { return Ptr != 0; } 30 31 bool operator==(const SMLoc &RHS) const { return RHS.Ptr == Ptr; } 32 bool operator!=(const SMLoc &RHS) const { return RHS.Ptr != Ptr; } 33 34 const char *getPointer() const { return Ptr; } 35 36 static SMLoc getFromPointer(const char *Ptr) { 37 SMLoc L; 38 L.Ptr = Ptr; 39 return L; 40 } 41 }; 42 43 /// SMRange - Represents a range in source code. Note that unlike standard STL 44 /// ranges, the locations specified are considered to be *inclusive*. For 45 /// example, [X,X] *does* include X, it isn't an empty range. 46 class SMRange { 47 public: 48 SMLoc Start, End; 49 50 SMRange() {} 51 SMRange(SMLoc Start, SMLoc End) : Start(Start), End(End) { 52 assert(Start.isValid() == End.isValid() && 53 "Start and end should either both be valid or both be invalid!"); 54 } 55 56 bool isValid() const { return Start.isValid(); } 57 }; 58 59 } // end namespace llvm 60 61 #endif 62 63
