67cc89f38d
Issue #352 Closes #1720 The old checker would happily accept things like 'alt x { @some(a) { a } }'. It now properly descends into patterns, checks exhaustiveness of booleans, and complains when number/string patterns aren't exhaustive.
27 lines
590 B
Rust
27 lines
590 B
Rust
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// -*- rust -*-
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type compare<T> = fn@(T, T) -> bool;
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fn test_generic<T: copy>(expected: T, eq: compare<T>) {
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let actual: T = alt check true { true { expected } };
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assert (eq(expected, actual));
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}
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fn test_bool() {
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fn compare_bool(&&b1: bool, &&b2: bool) -> bool { ret b1 == b2; }
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let eq = compare_bool(_, _);
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test_generic::<bool>(true, eq);
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}
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fn test_rec() {
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type t = {a: int, b: int};
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fn compare_rec(t1: t, t2: t) -> bool { ret t1 == t2; }
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let eq = compare_rec(_, _);
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test_generic::<t>({a: 1, b: 2}, eq);
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}
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fn main() { test_bool(); test_rec(); }
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