lib/IR/DebugLoc.cpp

   1 //===-- DebugLoc.cpp - Implement DebugLoc class ---------------------------===//
   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 #include "llvm/IR/DebugLoc.h"
  11 #include "LLVMContextImpl.h"
  12 #include "llvm/ADT/DenseMapInfo.h"
  13 #include "llvm/IR/DebugInfo.h"
  14 using namespace llvm;
  15
  16 //===----------------------------------------------------------------------===//
  17 // DebugLoc Implementation
  18 //===----------------------------------------------------------------------===//
  19 DebugLoc::DebugLoc(const DILocation *L) : Loc(const_cast<DILocation *>(L)) {}
  20 DebugLoc::DebugLoc(const MDNode *L) : Loc(const_cast<MDNode *>(L)) {}
  21
  22 DILocation *DebugLoc::get() const {
  23   return cast_or_null<DILocation>(Loc.get());
  24 }
  25
  26 unsigned DebugLoc::getLine() const {
  27   assert(get() && "Expected valid DebugLoc");
  28   return get()->getLine();
  29 }
  30
  31 unsigned DebugLoc::getCol() const {
  32   assert(get() && "Expected valid DebugLoc");
  33   return get()->getColumn();
  34 }
  35
  36 MDNode *DebugLoc::getScope() const {
  37   assert(get() && "Expected valid DebugLoc");
  38   return get()->getScope();
  39 }
  40
  41 DILocation *DebugLoc::getInlinedAt() const {
  42   assert(get() && "Expected valid DebugLoc");
  43   return get()->getInlinedAt();
  44 }
  45
  46 MDNode *DebugLoc::getInlinedAtScope() const {
  47   return cast<DILocation>(Loc)->getInlinedAtScope();
  48 }
  49
  50 DebugLoc DebugLoc::getFnDebugLoc() const {
  51   // FIXME: Add a method on \a DILocation that does this work.
  52   const MDNode *Scope = getInlinedAtScope();
  53   if (auto *SP = getDISubprogram(Scope))
  54     return DebugLoc::get(SP->getScopeLine(), 0, SP);
  55
  56   return DebugLoc();
  57 }
  58
  59 DebugLoc DebugLoc::get(unsigned Line, unsigned Col, const MDNode *Scope,
  60                        const MDNode *InlinedAt) {
  61   // If no scope is available, this is an unknown location.
  62   if (!Scope)
  63     return DebugLoc();
  64
  65   return DILocation::get(Scope->getContext(), Line, Col,
  66                          const_cast<MDNode *>(Scope),
  67                          const_cast<MDNode *>(InlinedAt));
  68 }
  69
  70 void DebugLoc::dump() const {
  71 #ifndef NDEBUG
  72   if (!Loc)
  73     return;
  74
  75   dbgs() << getLine();
  76   if (getCol() != 0)
  77     dbgs() << ',' << getCol();
  78   if (DebugLoc InlinedAtDL = DebugLoc(getInlinedAt())) {
  79     dbgs() << " @ ";
  80     InlinedAtDL.dump();
  81   } else
  82     dbgs() << "\n";
  83 #endif
  84 }
  85
  86 void DebugLoc::print(raw_ostream &OS) const {
  87   if (!Loc)
  88     return;
  89
  90   // Print source line info.
  91   auto *Scope = cast<DIScope>(getScope());
  92   OS << Scope->getFilename();
  93   OS << ':' << getLine();
  94   if (getCol() != 0)
  95     OS << ':' << getCol();
  96
  97   if (DebugLoc InlinedAtDL = getInlinedAt()) {
  98     OS << " @[ ";
  99     InlinedAtDL.print(OS);
 100     OS << " ]";
 101   }
 102 }