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fn with<T>(t: T, f: fn(T)) { f(t) }
fn nested(x: &x.int) { // (1)
do with(
fn&(x: &x.int, // Refers to the region `x` at (1)
y: &y.int, // A fresh region `y` (2)
z: fn(x: &x.int, // Refers to `x` at (1)
y: &y.int, // Refers to `y` at (2)
z: &z.int) -> &z.int) // A fresh region `z` (3)
-> &x.int {
if false { ret z(x, x, x); } //~ ERROR mismatched types: expected `&y.int` but found `&x.int`
if false { ret z(x, x, y); } //~ ERROR mismatched types: expected `&y.int` but found `&x.int`
//~^ ERROR mismatched types: expected `&x.int` but found `&y.int`
if false { ret z(x, y, x); }
if false { ret z(x, y, y); } //~ ERROR mismatched types: expected `&x.int` but found `&y.int`
if false { ret z(y, x, x); } //~ ERROR mismatched types: expected `&x.int` but found `&y.int`
//~^ ERROR mismatched types: expected `&y.int` but found `&x.int`
if false { ret z(y, x, y); } //~ ERROR mismatched types: expected `&x.int` but found `&y.int`
//~^ ERROR mismatched types: expected `&y.int` but found `&x.int`
//~^^ ERROR mismatched types: expected `&x.int` but found `&y.int`
if false { ret z(y, y, x); } //~ ERROR mismatched types: expected `&x.int` but found `&y.int`
if false { ret z(y, y, y); } //~ ERROR mismatched types: expected `&x.int` but found `&y.int`
//~^ ERROR mismatched types: expected `&x.int` but found `&y.int`
fail;
}
) |foo| {
let a: &x.int = foo(x, x, |_x, _y, z| z );
let b: &x.int = foo(x, a, |_x, _y, z| z );
let c: &x.int = foo(a, a, |_x, _y, z| z );
let z = 3i;
let d: &x.int = foo(x, x, |_x, _y, z| z );
let e: &x.int = foo(x, &z, |_x, _y, z| z );
let f: &x.int = foo(&z, &z, |_x, _y, z| z ); //~ ERROR mismatched types: expected `&x.int` but found
foo(x, &z, |x, _y, _z| x ); //~ ERROR mismatched types: expected `&z.int` but found `&x.int`
foo(x, &z, |_x, y, _z| y ); //~ ERROR mismatched types: expected `&z.int` but found `&<block at
}
}
fn main() {}
|
