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authorKaz Kylheku <kaz@kylheku.com>2022-10-03 22:10:32 -0700
committerKaz Kylheku <kaz@kylheku.com>2022-10-03 22:10:32 -0700
commit9c1e2974fad18576c0051d046f03d799d2879fdc (patch)
treef67f60de1965f70ec4c717486ef4b88871e61ad1 /syslog.h
parent502543ea94913ec4d4792dbd07151fba22220637 (diff)
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New: %fun% mechanism for current function name.
* eval.c (pct_fun_s): New symbol variable, holding the usr:%fun% symbol. (fun_macro_env): New static function. (do_expand): For defun and defmacro, use fun_macro_env to establish an environment binding the %fun% symbol macro, and expand everything in that environment. (eval_init): Intern the %fun% symbol, initializing pct_fun_s, and also register a global symbol macro in that name so that we can freely use %fun% everywhere without worrying that the code will blow up. E.g. a logging macro can use it to get the function name, but still be useful in a top-level form outside of a named function. * stdlib/struct.tl (sys:meth-lambda): New macro. (defstruct, defmeth): Use sys:meth-lambda as a replacement for lambda to set up the %fun% symbol macro. In the :init case which doesn't use a lambda, an open-coded symacrolet does the job. * tests/019/pct-fun.tl: New file. * tests/019/pct-fun.expected: Likewise. * txr.1: Documented. * stdlib/doc-syms.tl: Updated.
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