diff options
Diffstat (limited to 'crates/ra_syntax/src/parsing')
-rw-r--r-- | crates/ra_syntax/src/parsing/lexer.rs | 71 |
1 files changed, 12 insertions, 59 deletions
diff --git a/crates/ra_syntax/src/parsing/lexer.rs b/crates/ra_syntax/src/parsing/lexer.rs index 3ae42912c..a3791b503 100644 --- a/crates/ra_syntax/src/parsing/lexer.rs +++ b/crates/ra_syntax/src/parsing/lexer.rs | |||
@@ -88,65 +88,18 @@ fn next_token_inner(c: char, ptr: &mut Ptr) -> SyntaxKind { | |||
88 | } | 88 | } |
89 | 89 | ||
90 | match c { | 90 | match c { |
91 | // Multi-byte tokens. | 91 | // Possiblily multi-byte tokens, |
92 | '.' => { | 92 | // but we only produce single byte token now |
93 | return match (ptr.current(), ptr.nth(1)) { | 93 | // DOTDOTDOT, DOTDOT, DOTDOTEQ, DOT |
94 | (Some('.'), Some('.')) => { | 94 | '.' => return DOT, |
95 | ptr.bump(); | 95 | // COLONCOLON COLON |
96 | ptr.bump(); | 96 | ':' => return COLON, |
97 | DOTDOTDOT | 97 | // EQEQ FATARROW EQ |
98 | } | 98 | '=' => return EQ, |
99 | (Some('.'), Some('=')) => { | 99 | // NEQ EXCL |
100 | ptr.bump(); | 100 | '!' => return EXCL, |
101 | ptr.bump(); | 101 | // THIN_ARROW MINUS |
102 | DOTDOTEQ | 102 | '-' => return MINUS, |
103 | } | ||
104 | (Some('.'), _) => { | ||
105 | ptr.bump(); | ||
106 | DOTDOT | ||
107 | } | ||
108 | _ => DOT, | ||
109 | }; | ||
110 | } | ||
111 | ':' => { | ||
112 | return match ptr.current() { | ||
113 | Some(':') => { | ||
114 | ptr.bump(); | ||
115 | COLONCOLON | ||
116 | } | ||
117 | _ => COLON, | ||
118 | }; | ||
119 | } | ||
120 | '=' => { | ||
121 | return match ptr.current() { | ||
122 | Some('=') => { | ||
123 | ptr.bump(); | ||
124 | EQEQ | ||
125 | } | ||
126 | Some('>') => { | ||
127 | ptr.bump(); | ||
128 | FAT_ARROW | ||
129 | } | ||
130 | _ => EQ, | ||
131 | }; | ||
132 | } | ||
133 | '!' => { | ||
134 | return match ptr.current() { | ||
135 | Some('=') => { | ||
136 | ptr.bump(); | ||
137 | NEQ | ||
138 | } | ||
139 | _ => EXCL, | ||
140 | }; | ||
141 | } | ||
142 | '-' => { | ||
143 | return if ptr.at('>') { | ||
144 | ptr.bump(); | ||
145 | THIN_ARROW | ||
146 | } else { | ||
147 | MINUS | ||
148 | }; | ||
149 | } | ||
150 | 103 | ||
151 | // If the character is an ident start not followed by another single | 104 | // If the character is an ident start not followed by another single |
152 | // quote, then this is a lifetime name: | 105 | // quote, then this is a lifetime name: |