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[MIR] Add test case for translation of closure calls.

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This commit is contained in:
Michael Woerister 2016-01-05 12:32:49 -05:00
parent 7d357190ff
commit e281509dce
1 changed files with 16 additions and 7 deletions
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23
src/test/run-pass/mir_trans_calls.rs
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@ -94,10 +94,9 @@ fn test8() -> isize {
}
#[rustc_mir]
fn test_fn_impl(f: &&Fn(i32, i32) -> i32, x: i32, y: i32) -> i32 {
// This call goes through the Fn implementation for &Fn provided in
// core::ops::impls. It expands to a static Fn::call() that calls the
// Fn::call() implemenation of the object shim underneath.
fn test_closure<F>(f: &F, x: i32, y: i32) -> i32
where F: Fn(i32, i32) -> i32
{
f(x, y)
}
@ -106,6 +105,14 @@ fn test_fn_object(f: &Fn(i32, i32) -> i32, x: i32, y: i32) -> i32 {
f(x, y)
}
#[rustc_mir]
fn test_fn_impl(f: &&Fn(i32, i32) -> i32, x: i32, y: i32) -> i32 {
// This call goes through the Fn implementation for &Fn provided in
// core::ops::impls. It expands to a static Fn::call() that calls the
// Fn::call() implemenation of the object shim underneath.
f(x, y)
}
fn main() {
assert_eq!(test1(1, (2, 3), &[4, 5, 6]), (1, (2, 3), &[4, 5, 6][..]));
assert_eq!(test2(98), 98);
@ -117,7 +124,9 @@ fn main() {
assert_eq!(test7(), 1);
assert_eq!(test8(), 2);
let function_object = (&|x: i32, y: i32| { x + y }) as &Fn(i32, i32) -> i32;
assert_eq!(test_fn_object(function_object, 100, 1), 101);
assert_eq!(test_fn_impl(&function_object, 100, 2), 102);
let closure = |x: i32, y: i32| { x + y };
assert_eq!(test_closure(&closure, 100, 1), 101);
let function_object = &closure as &Fn(i32, i32) -> i32;
assert_eq!(test_fn_object(function_object, 100, 2), 102);
assert_eq!(test_fn_impl(&function_object, 100, 3), 103);
}