rust/src/test/run-pass/expr-block-generic.rs
2011-08-16 15:05:57 -07:00

28 lines
645 B
Rust

// -*- rust -*-
// Tests for standalone blocks as expressions with dynamic type sizes
type compare<T> = fn(&T, &T) -> bool ;
fn test_generic<T>(expected: &T, eq: &compare<T>) {
let actual: T = { expected };
assert (eq(expected, actual));
}
fn test_bool() {
fn compare_bool(b1: &bool, b2: &bool) -> bool { ret b1 == b2; }
let eq = bind compare_bool(_, _);
test_generic::<bool>(true, eq);
}
fn test_rec() {
type t = {a: int, b: int};
fn compare_rec(t1: &t, t2: &t) -> bool { ret t1 == t2; }
let eq = bind compare_rec(_, _);
test_generic::<t>({a: 1, b: 2}, eq);
}
fn main() { test_bool(); test_rec(); }