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|
// Test that the parser does not attempt to parse struct literals
// within assignments in if expressions.
#![allow(unused_parens)]
struct Foo {
foo: usize
}
fn main() {
let x = 1;
let y: Foo;
// `x { ... }` should not be interpreted as a struct literal here
if x = x {
//~^ ERROR mismatched types
println!("{}", x);
}
// Explicit parentheses on the left should match behavior of above
if (x = x) {
//~^ ERROR mismatched types
println!("{}", x);
}
// The struct literal interpretation is fine with explicit parentheses on the right
if y = (Foo { foo: x }) {
//~^ ERROR mismatched types
println!("{}", x);
}
// "invalid left-hand side of assignment" error is suppresed
if 3 = x {
//~^ ERROR mismatched types
println!("{}", x);
}
if (
if true {
x = 4 //~ ERROR mismatched types
} else {
x = 5 //~ ERROR mismatched types
}
) {
println!("{}", x);
}
if x == x && x = x && x == x {
//~^ ERROR mismatched types
//~| ERROR mismatched types
//~| ERROR mismatched types
println!("{}", x);
}
if x == x && x == x && x = x {
//~^ ERROR mismatched types
//~| ERROR mismatched types
println!("{}", x);
}
if x = 1 && x == 1 {
//~^ ERROR mismatched types
//~| ERROR mismatched types
println!("{}", x);
}
}
|
