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some bonehead

nix-refac
pegasust 2022-12-16 14:37:15 +00:00
parent 2e341a2409
commit e0adf8c39f
2 changed files with 60 additions and 21 deletions
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6
nix/calculus/default.nix
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@ -13,12 +13,12 @@ builtins // rec {
filter_ = list: fn: (builtins.filter fn list);
# :: [T] -> (T -> V) -> {T[int] = V;}
list2Attrs_ = list: fn_k_v (builtins.foldl' (acc: k: acc // { k = (fn_k_v k); }) { } list);
list2Attrs = fn_k_v: list (list2Attrs_ list fn_k_v);
list2Attrs_ = list: fn_k_v: (builtins.foldl' (acc: k: acc // { "${k}" = (fn_k_v k); }) { } list);
list2Attrs = fn_k_v: list: (list2Attrs_ list fn_k_v);
# range :: int -> int -> [int]
rangeIn = lib.range;
rangeEx = start: stop: (lib.range start stop-1);
rangeEx = start: stop: (lib.range start (stop -1));
# [T] -> int
len = builtins.length;

75
nix/calculus/std.nix
View File

@ -2,7 +2,7 @@ let
pkgs = import <nixpkgs> { };
inherit (pkgs) lib;
inherit (lib) runTests;
c_ = import ./default.nix;
c_ = import ./default.nix { inherit pkgs lib; };
bulkExprTest = { name, fn, list_case, ... }@test: (c_.foldl'
(acc: { name, args, expected, ... }@case: acc // {
"test_${test.name}_${case.name}" = {
@ -13,22 +13,23 @@ let
{ }
list_case);
tests = (
bulkExprTest {
name = "filterMap_";
fn = c_.filterMap_;
list_case = [
{
name = "odd";
args = [ [ 1 2 3 4 5 6 ] (e: if (c_.mod e 2) == 0 then null else e) ];
expected = [ 1 3 5 ];
}
{
name = "even";
args = [ [ 1 2 3 4 5 6 ] (e: if (c_.mod e 2) == 1 then null else e) ];
expected = [ 2 4 6 ];
}
];
} // bulkExprTest {
bulkExprTest
{
name = "filterMap_";
fn = c_.filterMap_;
list_case = [
{
name = "odd";
args = [ [ 1 2 3 4 5 6 ] (e: if (c_.mod e 2) == 0 then null else e) ];
expected = [ 1 3 5 ];
}
{
name = "even";
args = [ [ 1 2 3 4 5 6 ] (e: if (c_.mod e 2) == 1 then null else e) ];
expected = [ 2 4 6 ];
}
];
} // bulkExprTest {
name = "filterMap";
fn = c_.filterMap;
list_case = [
@ -49,7 +50,45 @@ let
list_case = [
{
name = "attach";
args = [["123" "abc" "1414"]];
args = [ [ "123" "abc" "1414" ] (_x: 515) ];
expected = { "123" = 515; "abc" = 515; "1414" = 515; };
}
];
} // bulkExprTest {
name = "zip";
fn = c_.zip;
list_case = [
{
name = "equal_length";
args = [ [ 1 2 3 ] [ 4 5 6 ] ];
expected = [ [ 1 4 ] [ 2 5 ] [ 3 6 ] ];
}
{
name = "left_more";
args = [ [ 1 2 3 4 ] [ 5 6 7 ] ];
expected = [ [ 1 5 ] [ 2 6 ] [ 3 7 ] ];
}
];
} // bulkExprTest {
name = "enumerate";
fn = c_.enumerate;
list_case = [
{
name = "empty";
args = [ [ ] ];
expected = [ ];
}
{
name = "normal";
args = [ [ 51 51 11 23 17 125 ] ];
expected = [
{ idx = 0; val = 51; }
{ idx = 1; val = 51; }
{ idx = 2; val = 11; }
{ idx = 3; val = 23; }
{ idx = 4; val = 17; }
{ idx = 5; val = 125; }
];
}
];
}