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Expand FIXME near definition of fboundp

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This expansion of the FIXME is so that future developers are aware of
the potential problems of aliasing fboundp to symbol-function without
taking backwards compatibility into account.

* src/data.c (fboundp): Note potential backwards compatibility issues in
FIXME.

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This commit is contained in:
Robert Cochran 2016-07-15 12:45:56 -07:00 • committed by Noam Postavsky
parent 219b39f521
commit 9356fe2392
1 changed files with 6 additions and 1 deletions
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7
src/data.c
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@ -629,7 +629,12 @@ global value outside of any lexical scope. */)
return (EQ (valcontents, Qunbound) ? Qnil : Qt);
}
/* FIXME: Make it an alias for function-symbol! */
/* FIXME: It has been previously suggested to make this function an
alias for symbol-function, but upon discussion at Debbug#23957,
there is a risk breaking backward compatiblity, as some users of
fboundp may expect `t' in particular, rather than any true
value. An alias is still welcome so long as the compatibility
issues are addressed. */
DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0,
doc: /* Return t if SYMBOL's function definition is not void. */)
(register Lisp_Object symbol)