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[Bug-kawa] [bug #47993] Spurious warning for throw in case expression
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From: |
Per Bothner |
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Subject: |
[Bug-kawa] [bug #47993] Spurious warning for throw in case expression |
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Date: |
Fri, 27 May 2016 22:18:59 +0000 (UTC) |
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User-agent: |
Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:46.0) Gecko/20100101 Firefox/46.0 |
Update of bug #47993 (project kawa):
Status: None => Invalid
Assigned to: None => bothner
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Follow-up Comment #1:
I believe Kawa is correct.
The clause
(else => (throw 'illegal-argument))
is equivalent to:
(else ((throw 'illegal-argument) idx))
That is (throw 'illegal-argument) is evaluated to a procedure,
which is then called with the value of idx as its argument.
Since (throw 'illegal-argument) can never evaluate to a procedure, Kawa
correctly complains.
You probably want plain:
(else (throw 'illegal-argument))
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