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| author | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2018-02-24 15:27:06 +0300 |
|---|---|---|
| committer | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2018-03-01 01:47:56 +0300 |
| commit | c9aff92e6dc3ea43228d3d4e24ee7f5485943569 (patch) | |
| tree | 84fe8eb3d8ea997a2fecd31c818ce040a3f741af /src/libsyntax/feature_gate.rs | |
| parent | 0ff9872b2280009f094af0df3dcdc542cc46a5fd (diff) | |
| download | rust-c9aff92e6dc3ea43228d3d4e24ee7f5485943569.tar.gz rust-c9aff92e6dc3ea43228d3d4e24ee7f5485943569.zip | |
Support parentheses in patterns under feature gate
Improve recovery for trailing comma after `..`
Diffstat (limited to 'src/libsyntax/feature_gate.rs')
| -rw-r--r-- | src/libsyntax/feature_gate.rs | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs index 1ebf52e9fe8..c9ac34aa917 100644 --- a/src/libsyntax/feature_gate.rs +++ b/src/libsyntax/feature_gate.rs @@ -449,6 +449,9 @@ declare_features! ( // Multiple patterns with `|` in `if let` and `while let` (active, if_while_or_patterns, "1.26.0", Some(48215)), + + // Parentheses in patterns + (active, pattern_parentheses, "1.26.0", None), ); declare_features! ( @@ -1663,6 +1666,10 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> { gate_feature_post!(&self, dotdoteq_in_patterns, pattern.span, "`..=` syntax in patterns is experimental"); } + PatKind::Paren(..) => { + gate_feature_post!(&self, pattern_parentheses, pattern.span, + "parentheses in patterns are unstable"); + } _ => {} } visit::walk_pat(self, pattern) |