| // Copyright 2018 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // Companion test to the similarly-named file in run-pass. |
| |
| // compile-flags: -C debug_assertions=yes |
| // revisions: std core |
| |
| #![cfg_attr(core, no_std)] |
| |
| #[cfg(std)] use std::fmt; |
| #[cfg(core)] use core::fmt; |
| |
| // (see documentation of the similarly-named test in run-pass) |
| fn to_format_or_not_to_format() { |
| let falsum = || false; |
| |
| // assert!(true, "{}",); // see run-pass |
| |
| assert_eq!(1, 1, "{}",); |
| //[core]~^ ERROR no arguments |
| //[std]~^^ ERROR no arguments |
| assert_ne!(1, 2, "{}",); |
| //[core]~^ ERROR no arguments |
| //[std]~^^ ERROR no arguments |
| |
| // debug_assert!(true, "{}",); // see run-pass |
| |
| debug_assert_eq!(1, 1, "{}",); |
| //[core]~^ ERROR no arguments |
| //[std]~^^ ERROR no arguments |
| debug_assert_ne!(1, 2, "{}",); |
| //[core]~^ ERROR no arguments |
| //[std]~^^ ERROR no arguments |
| |
| #[cfg(std)] { |
| eprint!("{}",); |
| //[std]~^ ERROR no arguments |
| } |
| |
| #[cfg(std)] { |
| // FIXME: compile-fail says "expected error not found" even though |
| // rustc does emit an error |
| // eprintln!("{}",); |
| // <DISABLED> [std]~^ ERROR no arguments |
| } |
| |
| #[cfg(std)] { |
| format!("{}",); |
| //[std]~^ ERROR no arguments |
| } |
| |
| format_args!("{}",); |
| //[core]~^ ERROR no arguments |
| //[std]~^^ ERROR no arguments |
| |
| // if falsum() { panic!("{}",); } // see run-pass |
| |
| #[cfg(std)] { |
| print!("{}",); |
| //[std]~^ ERROR no arguments |
| } |
| |
| #[cfg(std)] { |
| // FIXME: compile-fail says "expected error not found" even though |
| // rustc does emit an error |
| // println!("{}",); |
| // <DISABLED> [std]~^ ERROR no arguments |
| } |
| |
| unimplemented!("{}",); |
| //[core]~^ ERROR no arguments |
| //[std]~^^ ERROR no arguments |
| |
| // if falsum() { unreachable!("{}",); } // see run-pass |
| |
| struct S; |
| impl fmt::Display for S { |
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
| write!(f, "{}",)?; |
| //[core]~^ ERROR no arguments |
| //[std]~^^ ERROR no arguments |
| |
| // FIXME: compile-fail says "expected error not found" even though |
| // rustc does emit an error |
| // writeln!(f, "{}",)?; |
| // <DISABLED> [core]~^ ERROR no arguments |
| // <DISABLED> [std]~^^ ERROR no arguments |
| Ok(()) |
| } |
| } |
| } |
| |
| fn main() {} |