Created
February 1, 2025 11:04
nix data types / published by https://github.com/dacr/code-examples-manager #7e8ab042-cffa-4d78-bf37-21fc5bc024d6/99277c1e7ab0c0cafc426e32760098aa71ee1951
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## summary : nix data types | |
## keywords : nix, data-types | |
## publish : gist | |
## authors : David Crosson | |
## license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2) | |
## id : 7e8ab042-cffa-4d78-bf37-21fc5bc024d6 | |
## created-on : 2025-02-01T10:49:21+01:00 | |
## managed-by : https://github.com/dacr/code-examples-manager | |
## run-with : nix eval --file $file | |
#### run-with : nix-instantiate --eval $file | |
let | |
a_int = 2; | |
a_float = 40.0; | |
a_null = null; | |
a_bool = true; | |
a_string = "truc"; | |
a_multiline_string = '' | |
truc1 | |
truc2 | |
''; | |
a_list = [ 42 "something" false ]; | |
an_attribute_set = { | |
a = "blah"; | |
b = 42; | |
c = true; | |
d = { d0 = 0; d1 = 1; d2 = 2; }; | |
}; | |
a_recursive_attribute_set = rec { | |
one = 1; | |
two = one + 1; | |
three = two + 1; | |
}; | |
a_lambda = x: y: x+y; # currying | |
an_other_lambda = {x, y?0}: x+y; # With a default value for an attribute | |
an_other_lambda_again = {x, y?0,...}: x+y; # We don't care of any extra attribute | |
in { | |
computed = | |
a_int + | |
a_float + | |
an_attribute_set.d.d0 + | |
(a_lambda 1 2) + | |
(an_other_lambda {x=1;}) + | |
(an_other_lambda_again {x=1;gloups=42;}) + | |
( (x: x * 2) 10) + # direct lambda call | |
( (attrset: attrset.v * 10) {v = 5;}) + # lambda with parameter taken into account as an attribute set | |
( ( {x, y}: x + y) {x=1; y=2;} ) # destructuring | |
; | |
} |
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