lib/generators.toPretty: Switch away from δ and λ

- These symbols can be confusing for those not familiar with them
- There's no harm in making these more obvious
- Terminals may not print them correctly either

Also changes the function argument printing slightly to be more obvious
This commit is contained in:
Silvan Mosberger 2020-09-17 18:08:44 +02:00
parent 073e9b2aed
commit d0be9e9810
No known key found for this signature in database
GPG key ID: E8F1E9EAD284E17D
2 changed files with 13 additions and 12 deletions

View file

@ -237,10 +237,8 @@ rec {
# apply pretty values if allowed
if attrNames v == [ "__pretty" "val" ] && allowPrettyValues
then v.__pretty v.val
# TODO: there is probably a better representation?
else if v ? type && v.type == "derivation" then
"<δ:${v.name}>"
# "<δ:${concatStringsSep "," (builtins.attrNames v)}>"
"<derivation ${v.drvPath}>"
else "{" + introSpace
+ libStr.concatStringsSep introSpace (libAttr.mapAttrsToList
(name: value:
@ -249,10 +247,10 @@ rec {
else if isFunction v then
let fna = lib.functionArgs v;
showFnas = concatStringsSep ", " (libAttr.mapAttrsToList
(name: hasDefVal: if hasDefVal then "(${name})" else name)
(name: hasDefVal: if hasDefVal then name + "?" else name)
fna);
in if fna == {} then "<λ>"
else "<λ:{${showFnas}}>"
in if fna == {} then "<function>"
else "<function, args: {${showFnas}}>"
else abort "generators.toPretty: should never happen (v = ${v})";
in go "";

View file

@ -445,7 +445,10 @@ runTests {
expected = builtins.toJSON val;
};
testToPretty = {
testToPretty =
let
deriv = derivation { name = "test"; builder = "/bin/sh"; system = builtins.currentSystem; };
in {
expr = mapAttrs (const (generators.toPretty { multiline = false; })) rec {
int = 42;
float = 0.1337;
@ -459,7 +462,7 @@ runTests {
functionArgs = { arg ? 4, foo }: arg;
list = [ 3 4 function [ false ] ];
attrs = { foo = null; "foo bar" = "baz"; };
drv = derivation { name = "test"; system = builtins.currentSystem; };
drv = deriv;
};
expected = rec {
int = "42";
@ -470,11 +473,11 @@ runTests {
newlinestring = "\"\\n\"";
path = "/foo";
null_ = "null";
function = "<λ>";
functionArgs = "<λ:{(arg),foo}>";
function = "<function>";
functionArgs = "<function, args: {arg?, foo}>";
list = "[ 3 4 ${function} [ false ] ]";
attrs = "{ foo = null; \"foo bar\" = \"baz\"; }";
drv = "<δ:test>";
drv = "<derivation ${deriv.drvPath}>";
};
};