No description
37d7abd694
The expression `with E1; E2' evaluates to E2 with all bindings in
the attribute set E1 substituted. E.g.,
with {x = 123;}; x
evaluates to 123. That is, the attribute set E1 is in scope in E2.
This is particularly useful when importing files containing lots
definitions. E.g., instead of
let {
inherit (import ./foo.nix) a b c d e f;
body = ... a ... f ...;
}
we can now say
with import ./foo.nix;
... a ... f ...
I.e., we don't have to say what variables should be brought into scope.
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|---|---|---|
| corepkgs | ||
| doc | ||
| externals | ||
| misc | ||
| scripts | ||
| src | ||
| testpkgs | ||
| tests | ||
| AUTHORS | ||
| bootstrap.sh | ||
| ChangeLog | ||
| configure.ac | ||
| COPYING | ||
| INSTALL | ||
| Makefile.am | ||
| NEWS | ||
| nix.spec.in | ||
| README | ||
| substitute.mk | ||
*** Nix *** For installation and usage instructions, please read the manual, which can be found in `docs/manual/manual.html', and additionally at the Nix website at <http://www.cs.uu.nl/groups/ST/Trace/Nix>.