Merge pull request #1140 from dtolnay/letdotdot

Parse `..` pattern in pattern of let
dtolnay · Mar 14, 2022 · 5d1cd93 · 5d1cd93
2 parents 1a0cf9d + c708999
commit 5d1cd93
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Showing 2 changed files with 18 additions and 1 deletion.
diff --git a/src/pat.rs b/src/pat.rs
@@ -654,7 +654,7 @@ pub mod parsing {
     fn pat_lit_expr(input: ParseStream) -> Result<Option<Box<Expr>>> {
         if input.is_empty()
             || input.peek(Token![|])
-            || input.peek(Token![=>])
+            || input.peek(Token![=])
             || input.peek(Token![:]) && !input.peek(Token![::])
             || input.peek(Token![,])
             || input.peek(Token![;])

diff --git a/tests/test_stmt.rs b/tests/test_stmt.rs
@@ -4,6 +4,7 @@
 mod macros;
 
 use proc_macro2::{Delimiter, Group, Ident, Span, TokenStream, TokenTree};
+use quote::quote;
 use std::iter::FromIterator;
 use syn::Stmt;
 
@@ -74,3 +75,19 @@ fn test_none_group() {
     })
     "###);
 }
+
+#[test]
+fn test_let_dot_dot() {
+    let tokens = quote! {
+        let .. = 10;
+    };
+
+    snapshot!(tokens as Stmt, @r###"
+    Local(Local {
+        pat: Pat::Rest,
+        init: Some(Expr::Lit {
+            lit: 10,
+        }),
+    })
+    "###);
+}