Allow star expression for list elements

youknowone · youknowone · commit 1abe7e331376 · 2020-02-16T17:32:51.000+09:00
diff --git a/parser/src/python.lalrpop b/parser/src/python.lalrpop
@@ -1008,7 +1008,7 @@ ExpressionList2: Vec<ast::Expression> = {
 // - a single expression
 // - a single expression followed by a trailing comma
 TestList: ast::Expression = {
-    <location:@L> <elements:OneOrMore<Test>> <trailing_comma: ","?> => {
+    <location:@L> <elements:OneOrMore<TestOrStarExpr>> <trailing_comma: ","?> => {
         if elements.len() == 1 && trailing_comma.is_none() {
             elements.into_iter().next().unwrap()
         } else {
diff --git a/tests/snippets/list.py b/tests/snippets/list.py
@@ -632,3 +632,6 @@ def iadd_slice():
 assert it.__length_hint__() == 3
 assert list(it) == [3,2,1]
 assert it.__length_hint__() == 0
+
+a = [*[1, 2], 3, *[4, 5]]
+assert a == [1, 2, 3, 4, 5]
