yui-knk	2018-05-31 15:24:19 +0900 (Thu, 31 May 2018)

  New Revision: 63535

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63535

  Log:
    Undef RubyVM::AST::Node.new

  Modified files:
    trunk/ast.c
Index: ast.c
===================================================================
--- ast.c	(revision 63534)
+++ ast.c	(revision 63535)
@@ -483,6 +483,7 @@ Init_ast(void) https://github.com/ruby/ruby/blob/trunk/ast.c#L483
     rb_cNode = rb_define_class_under(rb_mAST, "Node", rb_cObject);
 
     rb_define_alloc_func(rb_cNode, rb_ast_node_alloc);
+    rb_undef_method(CLASS_OF(rb_cNode), "new");
     rb_define_singleton_method(rb_mAST, "parse", rb_ast_s_parse, 1);
     rb_define_singleton_method(rb_mAST, "parse_file", rb_ast_s_parse_file, 1);
     rb_define_method(rb_cNode, "type", rb_ast_node_type, 0);

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