diff options
author | Graham Christensen <graham@grahamc.com> | 2017-07-28 20:05:35 -0400 |
---|---|---|
committer | Graham Christensen <graham@grahamc.com> | 2017-09-16 21:36:43 -0400 |
commit | 152c63c9ff82276e225ac4a4fa71c791d33e443d (patch) | |
tree | 0755fd329430e64c6eacfdf4d45e75693ea824ae /lib/generators.nix | |
parent | 4d205eb0444996b1939ab9e495201912a3316b36 (diff) |
Convert libs to a fixed-point
This does break the API of being able to import any lib file and get
its libs, however I'm not sure people did this.
I made this while exploring being able to swap out docFn with a stub
in #2305, to avoid functor performance problems. I don't know if that
is going to move forward (or if it is a problem or not,) but after
doing all this work figured I'd put it up anyway :)
Two notable advantages to this approach:
1. when a lib inherits another lib's functions, it doesn't
automatically get put in to the scope of lib
2. when a lib implements a new obscure functions, it doesn't
automatically get put in to the scope of lib
Using the test script (later in this commit) I got the following diff
on the API:
+ diff master fixed-lib
11764a11765,11766
> .types.defaultFunctor
> .types.defaultTypeMerge
11774a11777,11778
> .types.isOptionType
> .types.isType
11781a11786
> .types.mkOptionType
11788a11794
> .types.setType
11795a11802
> .types.types
This means that this commit _adds_ to the API, however I can't find a
way to fix these last remaining discrepancies. At least none are
_removed_.
Test script (run with nix-repl in the PATH):
#!/bin/sh
set -eux
repl() {
suff=${1:-}
echo "(import ./lib)$suff" \
| nix-repl 2>&1
}
attrs_to_check() {
repl "${1:-}" \
| tr ';' $'\n' \
| grep "\.\.\." \
| cut -d' ' -f2 \
| sed -e "s/^/${1:-}./" \
| sort
}
summ() {
repl "${1:-}" \
| tr ' ' $'\n' \
| sort \
| uniq
}
deep_summ() {
suff="${1:-}"
depth="${2:-4}"
depth=$((depth - 1))
summ "$suff"
for attr in $(attrs_to_check "$suff" | grep -v "types.types"); do
if [ $depth -eq 0 ]; then
summ "$attr" | sed -e "s/^/$attr./"
else
deep_summ "$attr" "$depth" | sed -e "s/^/$attr./"
fi
done
}
(
cd nixpkgs
#git add .
#git commit -m "Auto-commit, sorry" || true
git checkout fixed-lib
deep_summ > ../fixed-lib
git checkout master
deep_summ > ../master
)
if diff master fixed-lib; then
echo "SHALLOW MATCH!"
fi
(
cd nixpkgs
git checkout fixed-lib
repl .types
)
Diffstat (limited to 'lib/generators.nix')
-rw-r--r-- | lib/generators.nix | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/generators.nix b/lib/generators.nix index 4419c3c88917..5f9da234f447 100644 --- a/lib/generators.nix +++ b/lib/generators.nix @@ -7,10 +7,11 @@ * Tests can be found in ./tests.nix * Documentation in the manual, #sec-generators */ -with import ./trivial.nix; +{ lib }: +with (lib).trivial; let - libStr = import ./strings.nix; - libAttr = import ./attrsets.nix; + libStr = lib.strings; + libAttr = lib.attrsets; flipMapAttrs = flip libAttr.mapAttrs; in |