1 files changed, 0 insertions, 176 deletions

diff --git a/crates/ra_syntax/src/string_lexing/char.rs b/crates/ra_syntax/src/string_lexing/char.rs
deleted file mode 100644
index e01813176..000000000
--- a/crates/ra_syntax/src/string_lexing/char.rs
+++ /dev/null
@@ -1,176 +0,0 @@
-use super::parser::Parser;
-use super::CharComponent;
-
-pub fn parse_char_literal(src: &str) -> CharComponentIterator {
-    CharComponentIterator {
-        parser: Parser::new(src),
-        has_closing_quote: false,
-    }
-}
-
-pub struct CharComponentIterator<'a> {
-    parser: Parser<'a>,
-    pub has_closing_quote: bool,
-}
-
-impl<'a> Iterator for CharComponentIterator<'a> {
-    type Item = CharComponent;
-    fn next(&mut self) -> Option<CharComponent> {
-        if self.parser.pos == 0 {
-            assert!(
-                self.parser.advance() == '\'',
-                "char literal should start with a quote"
-            );
-        }
-
-        if let Some(component) = self.parser.parse_char_component() {
-            return Some(component);
-        }
-
-        // We get here when there are no char components left to parse
-        if self.parser.peek() == Some('\'') {
-            self.parser.advance();
-            self.has_closing_quote = true;
-        }
-
-        assert!(
-            self.parser.peek() == None,
-            "char literal should leave no unparsed input: src = {:?}, pos = {}, length = {}",
-            self.parser.src,
-            self.parser.pos,
-            self.parser.src.len()
-        );
-
-        None
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use rowan::TextRange;
-    use crate::string_lexing::{
-        CharComponent,
-        CharComponentKind::*,
-};
-
-    fn parse(src: &str) -> (bool, Vec<CharComponent>) {
-        let component_iterator = &mut super::parse_char_literal(src);
-        let components: Vec<_> = component_iterator.collect();
-        (component_iterator.has_closing_quote, components)
-    }
-
-    fn unclosed_char_component(src: &str) -> CharComponent {
-        let (has_closing_quote, components) = parse(src);
-        assert!(!has_closing_quote, "char should not have closing quote");
-        assert!(components.len() == 1);
-        components[0].clone()
-    }
-
-    fn closed_char_component(src: &str) -> CharComponent {
-        let (has_closing_quote, components) = parse(src);
-        assert!(has_closing_quote, "char should have closing quote");
-        assert!(
-            components.len() == 1,
-            "Literal: {}\nComponents: {:#?}",
-            src,
-            components
-        );
-        components[0].clone()
-    }
-
-    fn closed_char_components(src: &str) -> Vec<CharComponent> {
-        let (has_closing_quote, components) = parse(src);
-        assert!(has_closing_quote, "char should have closing quote");
-        components
-    }
-
-    fn range_closed(src: &str) -> TextRange {
-        TextRange::from_to(1.into(), (src.len() as u32 - 1).into())
-    }
-
-    fn range_unclosed(src: &str) -> TextRange {
-        TextRange::from_to(1.into(), (src.len() as u32).into())
-    }
-
-    #[test]
-    fn test_unicode_escapes() {
-        let unicode_escapes = &[r"{DEAD}", "{BEEF}", "{FF}", "{}", ""];
-        for escape in unicode_escapes {
-            let escape_sequence = format!(r"'\u{}'", escape);
-            let component = closed_char_component(&escape_sequence);
-            let expected_range = range_closed(&escape_sequence);
-            assert_eq!(component.kind, UnicodeEscape);
-            assert_eq!(component.range, expected_range);
-        }
-    }
-
-    #[test]
-    fn test_unicode_escapes_unclosed() {
-        let unicode_escapes = &["{DEAD", "{BEEF", "{FF"];
-        for escape in unicode_escapes {
-            let escape_sequence = format!(r"'\u{}'", escape);
-            let component = unclosed_char_component(&escape_sequence);
-            let expected_range = range_unclosed(&escape_sequence);
-            assert_eq!(component.kind, UnicodeEscape);
-            assert_eq!(component.range, expected_range);
-        }
-    }
-
-    #[test]
-    fn test_empty_char() {
-        let (has_closing_quote, components) = parse("''");
-        assert!(has_closing_quote, "char should have closing quote");
-        assert!(components.len() == 0);
-    }
-
-    #[test]
-    fn test_unclosed_char() {
-        let component = unclosed_char_component("'a");
-        assert!(component.kind == CodePoint);
-        assert!(component.range == TextRange::from_to(1.into(), 2.into()));
-    }
-
-    #[test]
-    fn test_digit_escapes() {
-        let literals = &[r"", r"5", r"55"];
-
-        for literal in literals {
-            let lit_text = format!(r"'\x{}'", literal);
-            let component = closed_char_component(&lit_text);
-            assert!(component.kind == AsciiCodeEscape);
-            assert!(component.range == range_closed(&lit_text));
-        }
-
-        // More than 2 digits starts a new codepoint
-        let components = closed_char_components(r"'\x555'");
-        assert!(components.len() == 2);
-        assert!(components[1].kind == CodePoint);
-    }
-
-    #[test]
-    fn test_ascii_escapes() {
-        let literals = &[
-            r"\'", "\\\"", // equivalent to \"
-            r"\n", r"\r", r"\t", r"\\", r"\0",
-        ];
-
-        for literal in literals {
-            let lit_text = format!("'{}'", literal);
-            let component = closed_char_component(&lit_text);
-            assert!(component.kind == AsciiEscape);
-            assert!(component.range == range_closed(&lit_text));
-        }
-    }
-
-    #[test]
-    fn test_no_escapes() {
-        let literals = &['"', 'n', 'r', 't', '0', 'x', 'u'];
-
-        for &literal in literals {
-            let lit_text = format!("'{}'", literal);
-            let component = closed_char_component(&lit_text);
-            assert!(component.kind == CodePoint);
-            assert!(component.range == range_closed(&lit_text));
-        }
-    }
-}