Author: vmiklos
Date: Tue Aug 30 02:23:24 2016
New Revision: 280062

URL: http://llvm.org/viewvc/llvm-project?rev=280062&view=rev
Log:
clang-rename: improve error message when -old-name is used and could not find 
symbol

Old output was:

clang-rename: could not find symbol at 
tools/clang/tools/extra/test/clang-rename/ClassFindByName.cpp:1:1 (offset 0).

Reviewers: omtcyfz

Differential Revision: https://reviews.llvm.org/D24002

Added:
    clang-tools-extra/trunk/test/clang-rename/InvalidOldName.cpp
Modified:
    clang-tools-extra/trunk/clang-rename/USRFindingAction.cpp

Modified: clang-tools-extra/trunk/clang-rename/USRFindingAction.cpp
URL: 
http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-rename/USRFindingAction.cpp?rev=280062&r1=280061&r2=280062&view=diff
==============================================================================
--- clang-tools-extra/trunk/clang-rename/USRFindingAction.cpp (original)
+++ clang-tools-extra/trunk/clang-rename/USRFindingAction.cpp Tue Aug 30 
02:23:24 2016
@@ -157,12 +157,15 @@ struct NamedDeclFindingConsumer : public
       FoundDecl = getNamedDeclFor(Context, OldName);
     }
     if (FoundDecl == nullptr) {
-      FullSourceLoc FullLoc(Point, SourceMgr);
-      errs() << "clang-rename: could not find symbol at "
-             << SourceMgr.getFilename(Point) << ":"
-             << FullLoc.getSpellingLineNumber() << ":"
-             << FullLoc.getSpellingColumnNumber() << " (offset " << 
SymbolOffset
-             << ").\n";
+      if (OldName.empty()) {
+        FullSourceLoc FullLoc(Point, SourceMgr);
+        errs() << "clang-rename: could not find symbol at "
+               << SourceMgr.getFilename(Point) << ":"
+               << FullLoc.getSpellingLineNumber() << ":"
+               << FullLoc.getSpellingColumnNumber() << " (offset "
+               << SymbolOffset << ").\n";
+      } else
+        errs() << "clang-rename: could not find symbol " << OldName << ".\n";
       return;
     }
 

Added: clang-tools-extra/trunk/test/clang-rename/InvalidOldName.cpp
URL: 
http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/test/clang-rename/InvalidOldName.cpp?rev=280062&view=auto
==============================================================================
--- clang-tools-extra/trunk/test/clang-rename/InvalidOldName.cpp (added)
+++ clang-tools-extra/trunk/test/clang-rename/InvalidOldName.cpp Tue Aug 30 
02:23:24 2016
@@ -0,0 +1,2 @@
+// RUN: not clang-rename rename-all -new-name=Foo -old-name=Bar %s -- 2>&1 | 
FileCheck %s
+// CHECK: clang-rename: could not find symbol Bar.


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