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Merge #6558

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6558: format string highlighting: handle hex + debug type specifier r=matklad a=ruabmbua

Should fix https://github.com/rust-analyzer/rust-analyzer/issues/6427


Co-authored-by: Roland Ruckerbauer <roland.rucky@gmail.com>
This commit is contained in:
bors[bot] 2020-11-16 11:07:29 +00:00 committed by GitHub
commit e17d604888
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2
crates/ide/src/syntax_highlighting/test_data/highlight_strings.html
View file

@ -93,4 +93,6 @@ pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
<span class="macro">println!</span><span class="punctuation">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="escape_sequence">\x41</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="punctuation">,</span> A <span class="operator">=</span> <span class="numeric_literal">92</span><span class="punctuation">)</span><span class="punctuation">;</span>
<span class="macro">println!</span><span class="punctuation">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="variable">ничоси</span><span class="format_specifier">}</span><span class="string_literal">"</span><span class="punctuation">,</span> ничоси <span class="operator">=</span> <span class="numeric_literal">92</span><span class="punctuation">)</span><span class="punctuation">;</span>
<span class="macro">println!</span><span class="punctuation">(</span><span class="string_literal">"</span><span class="format_specifier">{</span><span class="format_specifier">:</span><span class="variable">x</span><span class="format_specifier">?</span><span class="format_specifier">}</span><span class="string_literal"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal"> "</span><span class="punctuation">,</span> thingy<span class="punctuation">,</span> n2<span class="punctuation">)</span><span class="punctuation">;</span>
<span class="punctuation">}</span></code></pre>

2
crates/ide/src/syntax_highlighting/tests.rs
View file

@ -340,6 +340,8 @@ fn main() {
println!("{\x41}", A = 92);
println!("{ничоси}", ничоси = 92);
println!("{:x?} {} ", thingy, n2);
}"#
.trim(),
expect_file!["./test_data/highlight_strings.html"],

22
crates/syntax/src/ast/token_ext.rs
View file

@ -331,10 +331,22 @@ pub trait HasFormatSpecifier: AstToken {
}
c if c == '_' || c.is_alphabetic() => {
read_identifier(&mut chars, &mut callback);
if chars.peek().and_then(|next| next.1.as_ref().ok()).copied()
== Some('?')
{
skip_char_and_emit(
&mut chars,
FormatSpecifier::QuestionMark,
&mut callback,
);
}
// can be either width (indicated by dollar sign, or type in which case
// the next sign has to be `}`)
let next =
chars.peek().and_then(|next| next.1.as_ref().ok()).copied();
match next {
Some('$') => skip_char_and_emit(
&mut chars,
@ -417,6 +429,16 @@ pub trait HasFormatSpecifier: AstToken {
}
c if c == '_' || c.is_alphabetic() => {
read_identifier(&mut chars, &mut callback);
if chars.peek().and_then(|next| next.1.as_ref().ok()).copied()
== Some('?')
{
skip_char_and_emit(
&mut chars,
FormatSpecifier::QuestionMark,
&mut callback,
);
}
}
_ => {}
}