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| author | Ludovic Courtès <ludo@gnu.org> | 2014-10-08 23:35:08 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2014-10-08 23:35:20 +0200 |
| commit | 405a9d4ec9806993a6453f0dfba78fc65d5e7993 (patch) | |
| tree | 83096b186be61f0a0daca3b808ab2aeb58bfb352 /doc/guix.texi | |
| parent | 2e1bafb03438757c7cc34c16230b00623507ff84 (diff) | |
monads: Add 'mbegin'.
* guix/monads.scm (mbegin): New macro.
* tests/monads.scm ("mbegin"): New test.
* doc/guix.texi (The Store Monad): Document it.
Diffstat (limited to 'doc/guix.texi')
| -rw-r--r-- | doc/guix.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index ed2b81ba33..c9760f5f60 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -2061,6 +2061,15 @@ Bind the variables @var{var} to the monadic values @var{mval} in (@pxref{Local Bindings,,, guile, GNU Guile Reference Manual}). @end deffn +@deffn {Scheme System} mbegin @var{monad} @var{mexp} ... +Bind @var{mexp} and the following monadic expressions in sequence, +returning the result of the last expression. + +This is akin to @code{mlet}, except that the return values of the +monadic expressions are ignored. In that sense, it is analogous to +@code{begin}, but applied to monadic expressions. +@end deffn + The interface to the store monad provided by @code{(guix monads)} is as follows. |