[PATCH] D85842: Fix `NestedNameSpecifierLoc::getLocalSourceRange()`

Eduardo Caldas via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Wed Aug 12 09:38:57 PDT 2020


eduucaldas updated this revision to Diff 285122.
eduucaldas added a comment.

Don't assume the code is completely correct


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D85842/new/

https://reviews.llvm.org/D85842

Files:
  clang/lib/AST/NestedNameSpecifier.cpp


Index: clang/lib/AST/NestedNameSpecifier.cpp
===================================================================
--- clang/lib/AST/NestedNameSpecifier.cpp
+++ clang/lib/AST/NestedNameSpecifier.cpp
@@ -439,6 +439,17 @@
     // Note: the 'template' keyword is part of the TypeLoc.
     void *TypeData = LoadPointer(Data, Offset);
     TypeLoc TL(Qualifier->getAsType(), TypeData);
+    // For `T::template ST<int>::x`
+    // `NestedNameSpecifierLoc::getLocalSourceRange()` should return `template
+    // ST<int>::` but `DependentTemplateSpecializationTypeLoc::getBeginLoc()`
+    // returns `^T::temp...`
+    if (auto DependentTL = TL.getAs<DependentTemplateSpecializationTypeLoc>()) {
+      if (getTemplateKeywordLoc().isValid())
+        return SourceRange(getTemplateKeywordLoc(),
+                           LoadSourceLocation(Data, Offset + sizeof(void *)));
+      return SourceRange(getTemplateNameLoc(),
+                         LoadSourceLocation(Data, Offset + sizeof(void *)));
+    }
     return SourceRange(TL.getBeginLoc(),
                        LoadSourceLocation(Data, Offset + sizeof(void*)));
   }


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