April 29, 2020
https://issues.dlang.org/show_bug.cgi?id=20786

          Issue ID: 20786
           Summary: do attribute inference for all nested functions
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: schveiguy@yahoo.com

All nested functions have available source for the compiler, so there is no reason not to infer attributes.

This already happens inside @safe functions, it makes no sense for it not to happen for all nested functions.

Note the post from Walter here: https://forum.dlang.org/post/r75q88$182b$1@digitalmars.com

Also, this is related to issue 13567, but it's slightly different, and there is better precedent.

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