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//! Checks clean diagnostics for argument count mismatches without unrelated errors.
//!
//! `delegate!` part related: <https://github.com/rust-lang/rust/pull/140591>
//@ aux-build: delegate_macro.rs
extern crate delegate_macro;
use delegate_macro::delegate;
fn foo(a: isize, b: isize, c: isize, d: isize) {
panic!();
}
fn bar(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32) {
println!("{}", a);
println!("{}", b);
println!("{}", c);
println!("{}", d);
println!("{}", e);
println!("{}", f);
}
macro_rules! delegate_local {
($method:ident) => {
<Self>::$method(8)
//~^ ERROR function takes 2 arguments but 1
};
}
macro_rules! delegate_from {
($from:ident, $method:ident) => {
<$from>::$method(8)
//~^ ERROR function takes 2 arguments but 1
};
}
struct Bar;
impl Bar {
fn foo(a: u8, b: u8) {}
fn bar() {
delegate_local!(foo);
delegate!(foo);
//~^ ERROR function takes 2 arguments but 1
delegate_from!(Bar, foo);
}
}
fn function_with_lots_of_arguments(a: i32, b: char, c: i32, d: i32, e: i32, f: i32) {}
fn main() {
foo(1, 2, 3);
//~^ ERROR function takes 4 arguments but 3
bar(1, 2, 3);
//~^ ERROR function takes 6 arguments but 3
let variable_name = 42;
function_with_lots_of_arguments(
variable_name,
variable_name,
variable_name,
variable_name,
variable_name,
);
//~^^^^^^^ ERROR this function takes 6 arguments but 5 arguments were supplied [E0061]
}
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