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