From f4a7653e44091350ece1bcbda6dfb0bef28a5786 Mon Sep 17 00:00:00 2001 From: Pierre Neidhardt Date: Thu, 4 Jul 2019 19:18:43 +0200 Subject: [PATCH] gnu: Add sbcl-introspect-environment. * gnu/packages/lisp.scm (sbcl-introspect-environment): New variable. --- gnu/packages/lisp.scm | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/gnu/packages/lisp.scm b/gnu/packages/lisp.scm index 8c3a7cbd7f..de4a55bf16 100644 --- a/gnu/packages/lisp.scm +++ b/gnu/packages/lisp.scm @@ -6150,3 +6150,44 @@ This library offers macros to deal with symbols from any namespace.") Edition\" (@url{https://www.cs.cmu.edu/Groups/AI/html/cltl/clm/node102.html}) and it exports symbols from implementation-specific packages.") (license license:llgpl)))) + +(define-public sbcl-introspect-environment + (let ((commit "fff42f8f8fd0d99db5ad6c5812e53de7d660020b") + (revision "1")) + (package + (name "sbcl-introspect-environment") + (build-system asdf-build-system/sbcl) + (version (git-version "0.1" revision commit)) + (home-page "https://github.com/Bike/introspect-environment") + (source + (origin + (method git-fetch) + (uri (git-reference + (url home-page) + (commit commit))) + (file-name (git-file-name name version)) + (sha256 + (base32 + "1i305n0wfmpac63ni4i3vixnnkl8daw5ncxy0k3dv92krgx6qzhp")))) + (native-inputs + `(("fiveam" ,sbcl-fiveam))) + (synopsis "Common Lisp environment introspection portability layer") + (description "This library is a small interface to portable but +nonstandard introspection of Common Lisp environments. It is intended to +allow a bit more compile-time introspection of environments in Common Lisp. + +Quite a bit of information is available at the time a macro or compiler-macro +runs; inlining info, type declarations, that sort of thing. This information +is all standard - any Common Lisp program can @code{(declare (integer x))} and +such. + +This info ought to be accessible through the standard @code{&environment} +parameters, but it is not. Several implementations keep the information for +their own purposes but do not make it available to user programs, because +there is no standard mechanism to do so. + +This library uses implementation-specific hooks to make information available +to users. This is currently supported on SBCL, CCL, and CMUCL. Other +implementations have implementations of the functions that do as much as they +can and/or provide reasonable defaults.") + (license license:wtfpl2))))