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REPL evaluation doesn't work after Ctrl-C #1157

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brianhuffman opened this issue Apr 8, 2021 · 0 comments · Fixed by #1158
Closed

REPL evaluation doesn't work after Ctrl-C #1157

brianhuffman opened this issue Apr 8, 2021 · 0 comments · Fixed by #1158

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@brianhuffman
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Once you press Ctrl-C at the REPL prompt (either while the interpreter is running, or when it's just waiting for input) then you are given a new prompt; but trying to evaluate any expression afterward will fail with a "resource vanished (Broken pipe)" error. (On Mac, at least.)

Loading module Cryptol
Cryptol>
Ctrl-C
Cryptol> True
cryptol: fd:13: hFlush: resource vanished (Broken pipe)

Other commands like :set or :browse or :help or even :eval still work, but evaluating an expression with the ordinary interpreter will crash.

Bisection shows that 3114110 (#1128) is the first bad commit.
robdockins added a commit that referenced this issue Apr 8, 2021
@robdockins
Reset the TC solver on CTRL^C.
a45072d 
Generally, the CTRL^C will cause the solver to exit, so
this shuts down the current instance forces the REPL to
reopen a fresh instance the next time it is required.

Fixes #1157
@robdockins robdockins mentioned this issue Apr 8, 2021
Merged
@brianhuffman brianhuffman mentioned this issue Apr 17, 2021
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Reset the TC solver on CTRL^C GaloisInc/cryptol
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@brianhuffman