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//@ignore-bitwidth: 32
//@aux-build:proc_macros.rs
#![allow(clippy::redundant_closure_call, unused)]
#![warn(clippy::single_call_fn)]
#![no_main]
#[macro_use]
extern crate proc_macros;
// Do not lint since it's public
pub fn f() {}
fn i() {}
//~^ single_call_fn
fn j() {}
//~^ single_call_fn
fn h() {
// Linted
let a = i;
// Do not lint closures
let a = (|| {
// Not linted
a();
// Imo, it's reasonable to lint this as the function is still only being used once. Just in
// a closure.
j();
});
a();
}
fn g() {
f();
}
fn c() {
//~^ single_call_fn
println!("really");
println!("long");
println!("function...");
}
fn d() {
c();
}
fn a() {}
//~^ single_call_fn
fn b() {
a();
external! {
fn lol() {
lol_inner();
}
fn lol_inner() {}
}
with_span! {
span
fn lol2() {
lol2_inner();
}
fn lol2_inner() {}
}
}
fn e() {
b();
b();
}
#[test]
fn k() {}
mod issue12182 {
#[allow(clippy::single_call_fn)]
fn print_foo(text: &str) {
println!("{text}");
}
fn use_print_foo() {
print_foo("foo");
}
}
#[test]
fn l() {
k();
}
trait Trait {
fn default() {}
//~^ single_call_fn
fn foo(&self);
}
unsafe extern "C" {
// test some kind of foreign item
fn rand() -> std::ffi::c_int;
}
fn m<T: Trait>(v: T) {
const NOT_A_FUNCTION: i32 = 1;
let _ = NOT_A_FUNCTION;
struct S;
impl S {
fn foo() {}
//~^ single_call_fn
}
T::default();
S::foo();
v.foo();
unsafe { rand() };
}
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