We currently have two open bug reports [bugs:#1945] and [bugs:#1946] related to SIGNAL into IF/SELECT/DO/LOOP groups. While ANSI requires Rexx to issue 16.2/16.3 "Cannot SIGNAL/CALL to label inside an IF/SELECT/DO group" for any SIGNAL or CALL into such a group, we currently allow code like this to work (both for SIGNAL and CALL):
`signal a; if 1 then say 1; a: else say 2` or `call w; select; w: when 1 then do; say 1; signal x; end; end; x:` We have no 16.2/16.3, and only the SELECT/WHEN/OTHERWISE instructions show some code comments like "It really isn't possible to jump into a middle of a select and get to a WHEN without raising an error", but mostly our code will allow to SIGNAL/CALL to clauses in groups. Do we intentionally allow SIGNAL/CALL into IF/DO/LOOP? Should SIGNAL/CALL into any group be disallowed like ANSI requires?
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