Introduce 'ast::Pat::is_rest(&self) -> bool'.

Centril · Centril · commit 9d6684c2ece5 · 2019-07-24T01:32:28.000+02:00
diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs
@@ -580,6 +580,14 @@ impl Pat {
             | PatKind::Mac(_) => true,
         }
     }
+
+    /// Is this a `..` pattern?
+    pub fn is_rest(&self) -> bool {
+        match self.node {
+            PatKind::Rest => true,
+            _ => false,
+        }
+    }
 }
 
 /// A single field in a struct pattern

Original file line number	Diff line number	Diff line change
`@@ -580,6 +580,14 @@ impl Pat {`
`580`	`580`	`\| PatKind::Mac(_) => true,`
`581`	`581`	`}`
`582`	`582`	`}`
	`583`	`+`
	`584`	+ /// Is this a `..` pattern?
	`585`	`+ pub fn is_rest(&self) -> bool {`
	`586`	`+ match self.node {`
	`587`	`+ PatKind::Rest => true,`
	`588`	`+ _ => false,`
	`589`	`+ }`
	`590`	`+ }`
`583`	`591`	`}`
`584`	`592`
`585`	`593`	`/// A single field in a struct pattern`