5b22d9b2ca
This seemed like a good way to kick the tires on the elided-lifetimes-in-paths lint (#52069)—seems to work! This was also pretty tedious—it sure would be nice if `cargo fix` worked on this codebase (#53896)!
51 lines
1.6 KiB
Rust
51 lines
1.6 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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// These functions are used by macro expansion for bug! and span_bug!
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use ty::tls;
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use std::fmt;
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use syntax_pos::{Span, MultiSpan};
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#[cold]
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#[inline(never)]
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pub fn bug_fmt(file: &'static str, line: u32, args: fmt::Arguments<'_>) -> ! {
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// this wrapper mostly exists so I don't have to write a fully
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// qualified path of None::<Span> inside the bug!() macro definition
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opt_span_bug_fmt(file, line, None::<Span>, args);
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}
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#[cold]
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#[inline(never)]
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pub fn span_bug_fmt<S: Into<MultiSpan>>(
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file: &'static str,
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line: u32,
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span: S,
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args: fmt::Arguments<'_>,
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) -> ! {
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opt_span_bug_fmt(file, line, Some(span), args);
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}
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fn opt_span_bug_fmt<S: Into<MultiSpan>>(
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file: &'static str,
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line: u32,
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span: Option<S>,
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args: fmt::Arguments<'_>,
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) -> ! {
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tls::with_opt(move |tcx| {
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let msg = format!("{}:{}: {}", file, line, args);
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match (tcx, span) {
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(Some(tcx), Some(span)) => tcx.sess.diagnostic().span_bug(span, &msg),
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(Some(tcx), None) => tcx.sess.diagnostic().bug(&msg),
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(None, _) => panic!(msg),
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}
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});
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unreachable!();
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}
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