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rustc: Don't ICE if we invalidate an invalid incr dir

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This showed up on the Windows bot for testing this PR, and this pr allows
`mark_incr_comp_session_as_invalid` ok if it's already invalid, hopefully
avoiding scary ICEs and instead leaving the nicely printed errors
This commit is contained in:
Alex Crichton 2018-01-05 10:07:36 -08:00
parent 8c9bf663d4
commit fcdca7f2da
1 changed files with 1 additions and 0 deletions
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src/librustc/session/mod.rs
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@ -642,6 +642,7 @@ impl Session {
IncrCompSession::Active { ref session_directory, .. } => { IncrCompSession::Active { ref session_directory, .. } => {
session_directory.clone() session_directory.clone()
} }
IncrCompSession::InvalidBecauseOfErrors { .. } => return,
_ => bug!("Trying to invalidate IncrCompSession `{:?}`", _ => bug!("Trying to invalidate IncrCompSession `{:?}`",
*incr_comp_session), *incr_comp_session),
}; };