Fix parsing of `_ = x` in closure body

2 files changed, 33 insertions, 0 deletions

diff --git a/crates/parser/test_data/parser/inline/ok/0203_closure_body_underscore_assignment.rast b/crates/parser/test_data/parser/inline/ok/0203_closure_body_underscore_assignment.rast
new file mode 100644
index 00000000000..8970922c977
--- /dev/null
+++ b/crates/parser/test_data/parser/inline/ok/0203_closure_body_underscore_assignment.rast
@@ -0,0 +1,32 @@
+SOURCE_FILE
+  FN
+    FN_KW "fn"
+    WHITESPACE " "
+    NAME
+      IDENT "main"
+    PARAM_LIST
+      L_PAREN "("
+      R_PAREN ")"
+    WHITESPACE " "
+    BLOCK_EXPR
+      STMT_LIST
+        L_CURLY "{"
+        WHITESPACE " "
+        EXPR_STMT
+          CLOSURE_EXPR
+            PARAM_LIST
+              PIPE "|"
+              PIPE "|"
+            WHITESPACE " "
+            BIN_EXPR
+              UNDERSCORE_EXPR
+                UNDERSCORE "_"
+              WHITESPACE " "
+              EQ "="
+              WHITESPACE " "
+              LITERAL
+                INT_NUMBER "0"
+          SEMICOLON ";"
+        WHITESPACE " "
+        R_CURLY "}"
+  WHITESPACE "\n"
diff --git a/crates/parser/test_data/parser/inline/ok/0203_closure_body_underscore_assignment.rs b/crates/parser/test_data/parser/inline/ok/0203_closure_body_underscore_assignment.rs
new file mode 100644
index 00000000000..9a34b63d29c
--- /dev/null
+++ b/crates/parser/test_data/parser/inline/ok/0203_closure_body_underscore_assignment.rs
@@ -0,0 +1 @@
+fn main() { || _ = 0; }