[PRISM] Add tests for ParametersNode

2 files changed, 11 insertions, 1 deletions

diff --git a/prism_compile.c b/prism_compile.c
index 3ed120de48..5e19b2f63d 100644
--- a/prism_compile.c
+++ b/prism_compile.c
@@ -2227,6 +2227,11 @@ pm_compile_node(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *const ret,
 
         return;
       }
+      case PM_PARAMETERS_NODE: {
+        rb_bug("Should not ever enter a parameters node directly");
+
+        return;
+      }
       case PM_PARENTHESES_NODE: {
         pm_parentheses_node_t *parentheses_node = (pm_parentheses_node_t *) node;
 
@@ -2266,7 +2271,7 @@ pm_compile_node(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *const ret,
         return;
       }
       case PM_PROGRAM_NODE: {
-        rb_bug("Should not ever enter a program node");
+        rb_bug("Should not ever enter a program node directly");
 
         return;
       }
diff --git a/test/ruby/test_compile_prism.rb b/test/ruby/test_compile_prism.rb
index ad5994f2c1..8128a88486 100644
--- a/test/ruby/test_compile_prism.rb
+++ b/test/ruby/test_compile_prism.rb
@@ -628,6 +628,11 @@ module Prism
       test_prism_eval("def prism_test_optional_param_node(bar = nil); end")
     end
 
+    def test_ParametersNode
+      test_prism_eval("def prism_test_parameters_node(bar, baz); end")
+      test_prism_eval("def prism_test_parameters_node(a, b = 2); end")
+    end
+
     def test_UndefNode
       test_prism_eval("def prism_undef_node_1; end; undef prism_undef_node_1")
       test_prism_eval(<<-HERE