Merge pull request #1796 from dtolnay/vecarm

Allow Vec<Arm> in parse_quote

Author: dtolnay

src/expr.rs

@@ -2328,10 +2328,7 @@ pub(crate) mod parsing {
             let brace_token = braced!(content in input);
             attr::parsing::parse_inner(&content, &mut attrs)?;
 
-            let mut arms = Vec::new();
-            while !content.is_empty() {
-                arms.push(content.call(Arm::parse)?);
-            }
+            let arms = Arm::parse_multiple(&content)?;
 
             Ok(ExprMatch {
                 attrs,
@@ -2945,6 +2942,17 @@ pub(crate) mod parsing {
         }
     }
 
+    #[cfg(feature = "full")]
+    impl Arm {
+        pub(crate) fn parse_multiple(input: ParseStream) -> Result<Vec<Self>> {
+            let mut arms = Vec::new();
+            while !input.is_empty() {
+                arms.push(input.call(Arm::parse)?);
+            }
+            Ok(arms)
+        }
+    }
+
     #[cfg(feature = "full")]
     #[cfg_attr(docsrs, doc(cfg(feature = "parsing")))]
     impl Parse for Arm {

src/parse_quote.rs

@@ -140,7 +140,7 @@ use crate::punctuated::Punctuated;
 #[cfg(any(feature = "full", feature = "derive"))]
 use crate::{attr, Attribute, Field, FieldMutability, Ident, Type, Visibility};
 #[cfg(feature = "full")]
-use crate::{Block, Pat, Stmt};
+use crate::{Arm, Block, Pat, Stmt};
 
 #[cfg(any(feature = "full", feature = "derive"))]
 impl ParseQuote for Attribute {
@@ -220,3 +220,10 @@ impl ParseQuote for Vec<Stmt> {
         Block::parse_within(input)
     }
 }
+
+#[cfg(feature = "full")]
+impl ParseQuote for Vec<Arm> {
+    fn parse(input: ParseStream) -> Result<Self> {
+        Arm::parse_multiple(input)
+    }
+}