2e90bd94de
It's still sketchy. I added a typestate annotation field to statements tagged stmt_decl or stmt_expr, because a stmt_decl statement has a typestate that's different from that of its child node. This necessitated trivial changes to a bunch of other files all over to the compiler. I also added a few small standard library functions, some of which I didn't actually end up using but which I thought might be useful anyway.
34 lines
755 B
Rust
34 lines
755 B
Rust
fn id[T](&T x) -> T {
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ret x;
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}
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/* FIXME (issue #141): See test/run-pass/constrained-type.rs. Uncomment
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* the constraint once fixed. */
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type rational = rec(int num, int den); // : _int.positive(*.den);
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fn rational_leq(&rational x, &rational y) -> bool {
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// NB: Uses the fact that rationals have positive denominators WLOG.
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ret x.num * y.den <= y.num * x.den;
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}
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fn fst[T, U](&tup(T, U) x) -> T {
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ret x._0;
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}
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fn snd[T, U](&tup(T, U) x) -> U {
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ret x._1;
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}
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fn orb(&bool a, &bool b) -> bool {
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ret a || b;
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}
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// Local Variables:
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// mode: rust;
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// fill-column: 78;
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// indent-tabs-mode: nil
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// c-basic-offset: 4
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// buffer-file-coding-system: utf-8-unix
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// compile-command: "make -k -C .. 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
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// End:
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