forked from lix-project/lix
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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|---|---|---|
| .. | ||
| eval.cc | ||
| eval.hh | ||
| lexer.l | ||
| Makefile.am | ||
| nixexpr.cc | ||
| nixexpr.hh | ||
| parser.cc | ||
| parser.hh | ||
| parser.y | ||
| primops.cc | ||