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* Implements code generation through Rust. * CLI: adds two `dev` compilation targets: 1. `rust` for generating Rust code 2. `native-rust` for generating a native executable via Rust * Adds end-to-end tests for compilation from Juvix to native executable via Rust. * A target for RISC0 needs to be added in a separate PR building on this one.
47 lines
1.0 KiB
Plaintext
47 lines
1.0 KiB
Plaintext
-- streams without memoization
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module test028;
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import Stdlib.Prelude open;
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type Stream := cons : Nat → (Unit → Stream) → Stream;
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force : (Unit → Stream) → Stream
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| f := f unit;
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terminating
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sfilter : (Nat → Bool) → (Unit → Stream) → Unit → Stream
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| p s unit :=
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case force s of {cons h t :=
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if (p h) (cons h (sfilter p t)) (force (sfilter p t))};
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shead : Stream → Nat
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| (cons h _) := h;
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stail : Stream → Unit → Stream
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| (cons _ t) := t;
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snth : Nat → (Unit → Stream) → Nat
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| zero s := shead (force s)
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| (suc n) s := snth n (stail (force s));
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terminating
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numbers : Nat → Unit → Stream
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| n unit := cons n (numbers (suc n));
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indivisible : Nat → Nat → Bool
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| n x := not (mod x n == 0);
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terminating
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eratostenes : (Unit → Stream) → Unit → Stream
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| s unit :=
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case force s of {cons n t :=
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cons n (eratostenes (sfilter (indivisible n) t))};
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primes : Unit → Stream := eratostenes (numbers 2);
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main : Nat :=
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snth 10 primes
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+ snth 50 primes
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+ snth 100 primes
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+ snth 200 primes;
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