rust/src/test/compile-fail/regions-bounds.rs

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// Check that explicit region bounds are allowed on the various
// nominal types (but not on other types) and that they are type
// checked.
enum an_enum/& { }
iface an_iface/& { }
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class a_class/& { let x:int; new(x:int) { self.x = x; } }
fn a_fn1(e: an_enum/&a) -> an_enum/&b {
ret e; //~ ERROR mismatched types: expected `an_enum/&b` but found `an_enum/&a`
}
fn a_fn2(e: an_iface/&a) -> an_iface/&b {
ret e; //~ ERROR mismatched types: expected `an_iface/&b` but found `an_iface/&a`
}
fn a_fn3(e: a_class/&a) -> a_class/&b {
ret e; //~ ERROR mismatched types: expected `a_class/&b` but found `a_class/&a`
}
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fn a_fn4(e: int/&a) -> int/&b {
//~^ ERROR region parameters are not allowed on this type
//~^^ ERROR region parameters are not allowed on this type
ret e;
}
fn main() { }