rust-clippy/tests/compile-fail/functions.rs

90 lines
3.2 KiB
Rust
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#![feature(plugin)]
#![plugin(clippy)]
#![deny(clippy)]
#![allow(dead_code)]
#![allow(unused_unsafe)]
// TOO_MANY_ARGUMENTS
fn good(_one: u32, _two: u32, _three: &str, _four: bool, _five: f32, _six: f32, _seven: bool) {}
fn bad(_one: u32, _two: u32, _three: &str, _four: bool, _five: f32, _six: f32, _seven: bool, _eight: ()) {
//~^ ERROR: this function has too many arguments (8/7)
}
// don't lint extern fns
extern fn extern_fn(_one: u32, _two: u32, _three: &str, _four: bool, _five: f32, _six: f32, _seven: bool, _eight: ()) {}
pub trait Foo {
fn good(_one: u32, _two: u32, _three: &str, _four: bool, _five: f32, _six: f32, _seven: bool);
fn bad(_one: u32, _two: u32, _three: &str, _four: bool, _five: f32, _six: f32, _seven: bool, _eight: ());
//~^ ERROR: this function has too many arguments (8/7)
fn ptr(p: *const u8);
}
pub struct Bar;
impl Bar {
fn good_method(_one: u32, _two: u32, _three: &str, _four: bool, _five: f32, _six: f32, _seven: bool) {}
fn bad_method(_one: u32, _two: u32, _three: &str, _four: bool, _five: f32, _six: f32, _seven: bool, _eight: ()) {}
//~^ ERROR: this function has too many arguments (8/7)
}
// ok, we dont want to warn implementations
impl Foo for Bar {
fn good(_one: u32, _two: u32, _three: &str, _four: bool, _five: f32, _six: f32, _seven: bool) {}
fn bad(_one: u32, _two: u32, _three: &str, _four: bool, _five: f32, _six: f32, _seven: bool, _eight: ()) {}
fn ptr(p: *const u8) {
println!("{}", unsafe { *p });
//~^ ERROR: this public function dereferences a raw pointer but is not marked `unsafe`
println!("{:?}", unsafe { p.as_ref() });
//~^ ERROR: this public function dereferences a raw pointer but is not marked `unsafe`
unsafe { std::ptr::read(p) };
//~^ ERROR: this public function dereferences a raw pointer but is not marked `unsafe`
}
}
// NOT_UNSAFE_PTR_ARG_DEREF
fn private(p: *const u8) {
println!("{}", unsafe { *p });
}
pub fn public(p: *const u8) {
println!("{}", unsafe { *p });
//~^ ERROR: this public function dereferences a raw pointer but is not marked `unsafe`
println!("{:?}", unsafe { p.as_ref() });
//~^ ERROR: this public function dereferences a raw pointer but is not marked `unsafe`
unsafe { std::ptr::read(p) };
//~^ ERROR: this public function dereferences a raw pointer but is not marked `unsafe`
}
impl Bar {
fn private(self, p: *const u8) {
println!("{}", unsafe { *p });
}
pub fn public(self, p: *const u8) {
println!("{}", unsafe { *p });
//~^ ERROR: this public function dereferences a raw pointer but is not marked `unsafe`
println!("{:?}", unsafe { p.as_ref() });
//~^ ERROR: this public function dereferences a raw pointer but is not marked `unsafe`
unsafe { std::ptr::read(p) };
//~^ ERROR: this public function dereferences a raw pointer but is not marked `unsafe`
}
pub fn public_ok(self, p: *const u8) {
if !p.is_null() {
println!("{:p}", p);
}
}
pub unsafe fn public_unsafe(self, p: *const u8) {
println!("{}", unsafe { *p });
println!("{:?}", unsafe { p.as_ref() });
}
}
fn main() {}