[PATCH] D141611: [include-mapping] Print an error message in case the symbol index points to a non-existent page.

[Viktoriia Bakalova via Phabricator via cfe-commits]

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Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D141611

Files:
  clang/tools/include-mapping/cppreference_parser.py


Index: clang/tools/include-mapping/cppreference_parser.py
===================================================================
--- clang/tools/include-mapping/cppreference_parser.py
+++ clang/tools/include-mapping/cppreference_parser.py
@@ -145,6 +145,8 @@
       if os.path.isfile(path):
         results.append((symbol_name,
                       pool.apply_async(_ReadSymbolPage, (path, symbol_name))))
+      else:
+        print("Could not parse page:", path, ". Page does not exist.", file=sys.stderr)                
 
     # Build map from symbol name to a set of headers.
     symbol_headers = collections.defaultdict(set)


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