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-rw-r--r--crates/syntax/src/ast/token_ext.rs21
1 files changed, 19 insertions, 2 deletions
diff --git a/crates/syntax/src/ast/token_ext.rs b/crates/syntax/src/ast/token_ext.rs
index 5e07ec7d1..044e3e5e8 100644
--- a/crates/syntax/src/ast/token_ext.rs
+++ b/crates/syntax/src/ast/token_ext.rs
@@ -173,7 +173,7 @@ impl ast::String {
173 buf.capacity() == 0, 173 buf.capacity() == 0,
174 ) { 174 ) {
175 (Ok(c), false) => buf.push(c), 175 (Ok(c), false) => buf.push(c),
176 (Ok(c), true) if Some(c) == text_iter.next() => (), 176 (Ok(c), true) if char_range.len() == 1 && Some(c) == text_iter.next() => (),
177 (Ok(c), true) => { 177 (Ok(c), true) => {
178 buf.reserve_exact(text.len()); 178 buf.reserve_exact(text.len());
179 buf.push_str(&text[..char_range.start]); 179 buf.push_str(&text[..char_range.start]);
@@ -659,7 +659,7 @@ impl Radix {
659 659
660#[cfg(test)] 660#[cfg(test)]
661mod tests { 661mod tests {
662 use crate::ast::{make, FloatNumber, IntNumber}; 662 use crate::ast::{self, make, FloatNumber, IntNumber};
663 663
664 fn check_float_suffix<'a>(lit: &str, expected: impl Into<Option<&'a str>>) { 664 fn check_float_suffix<'a>(lit: &str, expected: impl Into<Option<&'a str>>) {
665 assert_eq!(FloatNumber { syntax: make::tokens::literal(lit) }.suffix(), expected.into()); 665 assert_eq!(FloatNumber { syntax: make::tokens::literal(lit) }.suffix(), expected.into());
@@ -692,4 +692,21 @@ mod tests {
692 check_int_suffix("0o11u32", "u32"); 692 check_int_suffix("0o11u32", "u32");
693 check_int_suffix("0xffu32", "u32"); 693 check_int_suffix("0xffu32", "u32");
694 } 694 }
695
696 fn check_string_value<'a>(lit: &str, expected: impl Into<Option<&'a str>>) {
697 assert_eq!(
698 ast::String { syntax: make::tokens::literal(&format!("\"{}\"", lit)) }
699 .value()
700 .as_deref(),
701 expected.into()
702 );
703 }
704
705 #[test]
706 fn test_string_escape() {
707 check_string_value(r"foobar", "foobar");
708 check_string_value(r"\foobar", None);
709 check_string_value(r"\nfoobar", "\nfoobar");
710 check_string_value(r"C:\\Windows\\System32\\", "C:\\Windows\\System32\\");
711 }
695} 712}