Haojian Wu 11b20d7ab0 [clang] Fix an out-of-bound crash when checking template partial specializations. (#86794) ...

I found this issue (a separate one) during the investigation of #86757,
the crash is similar in substituteParameterMappings, but at different
inner places.

This was an out-of-bound issue where we access front element in an empty
written template argument list to get the instantiation source range.
This patch fixes it by adding a proper guard.

2024-03-27 15:31:55 +01:00

38 KiB

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