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Introduce special treatment for the blank identifier _

Browse source 
Mostly: Do not instantiate variables within for loops and allow
reusing differently typed blanks which previously wasn't possible.

This may be missing some corner-cases, but the added tests seem
to work as expected and nothing else fell apart it seems.
This commit is contained in:
Arne Welzel 2022-09-30 17:38:00 +02:00
parent 7f7c77ab07
commit 46334f8b59
21 changed files with 318 additions and 20 deletions
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2
testing/btest/Baseline/language.blank-expr-errors-2/.stderr Normal file
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@ -0,0 +1,2 @@
### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
error in <...>/blank-expr-errors.zeek, line 4: blank identifier used in expression (_)