646b892680
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62 lines
1.3 KiB
Nix
62 lines
1.3 KiB
Nix
{
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lib,
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pkgs,
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...
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}:
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{
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name = "owi";
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meta.maintainers = with lib.maintainers; [ ethancedwards8 ];
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nodes.machine = {
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environment.systemPackages = with pkgs; [ owi ];
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environment.etc."owipass.rs".source = pkgs.writeText "owi.rs" ''
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use owi_sym::Symbolic;
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fn mean_one(x: i32, y: i32) -> i32 {
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(x + y)/2
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}
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fn mean_two(x: i32, y: i32) -> i32 {
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(y + x)/2
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}
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fn main() {
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let x = i32::symbol();
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let y = i32::symbol();
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// proving the commutative property of addition!
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owi_sym::assert(mean_one(x, y) == mean_two(x, y))
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}
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'';
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environment.etc."owifail.rs".source = pkgs.writeText "owi.rs" ''
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use owi_sym::Symbolic;
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fn mean_wrong(x: i32, y: i32) -> i32 {
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(x + y) / 2
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}
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fn mean_correct(x: i32, y: i32) -> i32 {
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(x & y) + ((x ^ y) >> 1)
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}
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fn main() {
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let x = i32::symbol();
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let y = i32::symbol();
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owi_sym::assert(mean_wrong(x, y) == mean_correct(x, y))
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}
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'';
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};
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testScript =
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{ nodes, ... }:
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''
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start_all()
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# testing
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machine.succeed("owi rust --fail-on-assertion-only /etc/owipass.rs")
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machine.fail("owi rust --fail-on-assertion-only /etc/owifail.rs")
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'';
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}
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