parameter parsing does not destroy blocks

2018-08-24 20:50:37 +03:00
parent b0aac1ca98
commit f104458d45
10 changed files with 70 additions and 4 deletions
--- a/crates/libsyntax2/src/grammar/patterns.rs
+++ b/crates/libsyntax2/src/grammar/patterns.rs
@@ -1,5 +1,12 @@
 use super::*;

+pub(super) const PATTERN_FIRST: TokenSet =
+    token_set_union![
+        token_set![REF_KW, MUT_KW, L_PAREN, L_BRACK, AMP],
+        expressions::LITERAL_FIRST,
+        paths::PATH_FIRST,
+    ];
+
 pub(super) fn pattern(p: &mut Parser) {
    if let Some(lhs) = atom_pat(p) {
        // test range_pat