[ruby/prism] Fix parsing rescue modifier

https://github.com/ruby/prism/commit/b7407ae3c0

1 files changed, 12 insertions, 1 deletions

diff --git a/prism/prism.c b/prism/prism.c
index e517a0cc21..d87391d637 100644
--- a/prism/prism.c
+++ b/prism/prism.c
@@ -16769,7 +16769,18 @@ parse_assignment_values(pm_parser_t *parser, pm_binding_power_t previous_binding
     if (is_single_value && match1(parser, PM_TOKEN_KEYWORD_RESCUE_MODIFIER)) {
         pm_token_t rescue = parser->current;
         parser_lex(parser);
-        pm_node_t *right = parse_expression(parser, binding_power, false, PM_ERR_RESCUE_MODIFIER_VALUE);
+
+        bool accepts_command_call_inner = false;
+
+        // RHS can accept command call iff the value is a call with arguments but without paranthesis.
+        if (PM_NODE_TYPE_P(value, PM_CALL_NODE)) {
+            pm_call_node_t *call_node = (pm_call_node_t *)value;
+            if ((call_node->arguments != NULL) && (call_node->opening_loc.start == NULL)) {
+                accepts_command_call_inner = true;
+            }
+        }
+
+        pm_node_t *right = parse_expression(parser, binding_power, accepts_command_call_inner, PM_ERR_RESCUE_MODIFIER_VALUE);
 
         return (pm_node_t *) pm_rescue_modifier_node_create(parser, value, &rescue, right);
     }