Jonas Devlieghere fb10b01cca [lldb] Prevent crash when completing ambiguous subcommands ...

Fix a crash when trying to complete an ambiguous subcommand. Take `set s
tar` for example: for the subcommand `s` there's ambiguity between set
and show. Pressing TAB after this input currently crashes LLDB. The
problem is that we're trying to complete `tar` but give up at `s`
because of the ambiguity. LLDB doesn't expect the completed string to be
shorter than the current string and crashes when trying to eliminate the
common prefix.

rdar://111848598

Differential revision: https://reviews.llvm.org/D154643

2023-07-10 14:50:40 -07:00

15 KiB

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