rust/src/test/run-pass/expr-alt-generic.rs
Graydon Hoare d08b443fff Revert "Use different syntax for checks that matter to typestate"
This reverts commit aa25f22f19. It broke stage2, not sure why yet.
2011-05-02 17:35:33 -07:00

35 lines
614 B
Rust

// xfail-boot
// -*- rust -*-
type compare[T] = fn(&T t1, &T t2) -> bool;
fn test_generic[T](&T expected, &compare[T] eq) {
let T actual = alt (true) {
case (true) {
expected
}
};
check (eq(expected, actual));
}
fn test_bool() {
fn compare_bool(&bool b1, &bool b2) -> bool {
ret b1 == b2;
}
auto eq = bind compare_bool(_, _);
test_generic[bool](true, eq);
}
fn test_tup() {
type t = tup(int, int);
fn compare_tup(&t t1, &t t2) -> bool {
ret t1 == t2;
}
auto eq = bind compare_tup(_, _);
test_generic[t](tup(1, 2), eq);
}
fn main() {
test_bool();
test_tup();
}