bjoernager/rust
bjoernager/rust
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Inline printable function

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This commit is contained in:
5225225 2021-11-13 15:08:20 +00:00
parent 17b5e2d167
commit 09e59c2875
1 changed files with 7 additions and 5 deletions
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12
compiler/rustc_parse/src/lexer/unescape_error_reporting.rs
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@ -7,10 +7,6 @@ use rustc_errors::{pluralize, Applicability, Handler};
use rustc_lexer::unescape::{EscapeError, Mode}; use rustc_lexer::unescape::{EscapeError, Mode};
use rustc_span::{BytePos, Span}; use rustc_span::{BytePos, Span};
fn printing(ch: char) -> bool {
unicode_width::UnicodeWidthChar::width(ch).unwrap_or(0) != 0 && !ch.is_whitespace()
}
pub(crate) fn emit_unescape_error( pub(crate) fn emit_unescape_error(
handler: &Handler, handler: &Handler,
// interior part of the literal, without quotes // interior part of the literal, without quotes
@ -87,7 +83,13 @@ pub(crate) fn emit_unescape_error(
); );
} }
} else { } else {
let printable: Vec<char> = lit.chars().filter(|x| printing(*x)).collect(); let printable: Vec<char> = lit
.chars()
.filter(|&x| {
unicode_width::UnicodeWidthChar::width(x).unwrap_or(0) != 0
&& !x.is_whitespace()
})
.collect();
if let [ch] = printable.as_slice() { if let [ch] = printable.as_slice() {
has_help = true; has_help = true;