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authorLeander Tentrup <[email protected]>2020-06-07 21:57:24 +0100
committerLeander Tentrup <[email protected]>2020-06-07 21:57:24 +0100
commit3aaaf924cb649ecc3b1a59653f47d1735fa7cb5d (patch)
tree31d78ed2f7c23ff467b6fe7cd213b57acd4edbe1 /crates/ra_syntax
parentdc340f12a39e7cd8b495b84c009052c4d441d867 (diff)
Fix bug in lexer for format specifier where the `type` and `width` were not correctly distinguished
Diffstat (limited to 'crates/ra_syntax')
-rw-r--r--crates/ra_syntax/src/ast/tokens.rs37
1 files changed, 23 insertions, 14 deletions
diff --git a/crates/ra_syntax/src/ast/tokens.rs b/crates/ra_syntax/src/ast/tokens.rs
index 04b0a4480..56378385a 100644
--- a/crates/ra_syntax/src/ast/tokens.rs
+++ b/crates/ra_syntax/src/ast/tokens.rs
@@ -335,16 +335,26 @@ pub trait HasFormatSpecifier: AstToken {
335 } 335 }
336 c if c == '_' || c.is_alphabetic() => { 336 c if c == '_' || c.is_alphabetic() => {
337 read_identifier(&mut chars, &mut callback); 337 read_identifier(&mut chars, &mut callback);
338 if chars.peek().and_then(|next| next.1.as_ref().ok()).copied() 338 // can be either width (indicated by dollar sign, or type in which case
339 != Some('$') 339 // the next sign has to be `}`)
340 { 340 let next =
341 continue; 341 chars.peek().and_then(|next| next.1.as_ref().ok()).copied();
342 } 342 match next {
343 skip_char_and_emit( 343 Some('$') => skip_char_and_emit(
344 &mut chars, 344 &mut chars,
345 FormatSpecifier::DollarSign, 345 FormatSpecifier::DollarSign,
346 &mut callback, 346 &mut callback,
347 ); 347 ),
348 Some('}') => {
349 skip_char_and_emit(
350 &mut chars,
351 FormatSpecifier::Close,
352 &mut callback,
353 );
354 continue;
355 }
356 _ => continue,
357 };
348 } 358 }
349 _ => {} 359 _ => {}
350 } 360 }
@@ -416,12 +426,11 @@ pub trait HasFormatSpecifier: AstToken {
416 } 426 }
417 } 427 }
418 428
419 let mut cloned = chars.clone().take(2); 429 if let Some((_, Ok('}'))) = chars.peek() {
420 let first = cloned.next().and_then(|next| next.1.as_ref().ok()).copied(); 430 skip_char_and_emit(&mut chars, FormatSpecifier::Close, &mut callback);
421 if first != Some('}') { 431 } else {
422 continue; 432 continue;
423 } 433 }
424 skip_char_and_emit(&mut chars, FormatSpecifier::Close, &mut callback);
425 } 434 }
426 _ => { 435 _ => {
427 while let Some((_, Ok(next_char))) = chars.peek() { 436 while let Some((_, Ok(next_char))) = chars.peek() {