diff options
author | Ludovic Courtès <ludo@gnu.org> | 2009-08-10 19:24:34 +0200 |
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committer | Ludovic Courtès <ludo@gnu.org> | 2009-08-10 19:24:34 +0200 |
commit | dab1ed3767c4fb8840401624e6c5a315e5cb5692 (patch) | |
tree | f845874e7634aa363be986ea3b6308aca54cf1dd /doc/ref/api-binding.texi | |
parent | 32be5735cd89931048f12283f3977c72cd292f77 (diff) | |
download | guile-dab1ed3767c4fb8840401624e6c5a315e5cb5692.tar.gz |
Change `defined?' to accept a module as its second argument.
Reported by Daniel Kraft <d@domob.eu>.
* doc/ref/api-binding.texi (Binding Reflection): Update documentation of
`defined?'.
* libguile/evalext.c (scm_defined_p): Expect a module as the second
argument, not a lexical environment.
Diffstat (limited to 'doc/ref/api-binding.texi')
-rw-r--r-- | doc/ref/api-binding.texi | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/doc/ref/api-binding.texi b/doc/ref/api-binding.texi index b42f5567f..e53c48040 100644 --- a/doc/ref/api-binding.texi +++ b/doc/ref/api-binding.texi @@ -1,6 +1,6 @@ @c -*-texinfo-*- @c This is part of the GNU Guile Reference Manual. -@c Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004 +@c Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2009 @c Free Software Foundation, Inc. @c See the file guile.texi for copying conditions. @@ -271,10 +271,16 @@ with duplicate bindings. Guile provides a procedure for checking whether a symbol is bound in the top level environment. -@c NJFIXME explain [env] -@deffn {Scheme Procedure} defined? sym [env] -@deffnx {C Function} scm_defined_p (sym, env) -Return @code{#t} if @var{sym} is defined in the lexical environment @var{env}. When @var{env} is not specified, look in the top-level environment as defined by the current module. +@deffn {Scheme Procedure} defined? sym [module] +@deffnx {C Function} scm_defined_p (sym, module) +Return @code{#t} if @var{sym} is defined in the module @var{module} or +the current module when @var{module} is not specified; otherwise return +@code{#f}. + +Up to Guile 1.8, the second optional argument had to be @dfn{lexical +environment} as returned by @code{the-environment}, for example. The +behavior of this function remains unchanged when the second argument is +omitted. @end deffn |