Revert "Revert "Manage AST NODEs out of GC""

This re-introduces r60485.
This reverts commit 5a176b75b1187cbd3861c387bde65ff66396a07c.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60488 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 3 deletions

diff --git a/load.c b/load.c
index db09c3384e..8b12c4d64c 100644
--- a/load.c
+++ b/load.c
@@ -602,7 +602,7 @@ rb_load_internal0(rb_thread_t *th, VALUE fname, int wrap)
     EC_PUSH_TAG(th->ec);
     state = EXEC_TAG();
     if (state == TAG_NONE) {
-	NODE *node;
+	ast_t *ast;
 	const rb_iseq_t *iseq;
 
 	if ((iseq = rb_iseq_load_iseq(fname)) != NULL) {
@@ -611,9 +611,10 @@ rb_load_internal0(rb_thread_t *th, VALUE fname, int wrap)
 	else {
 	    VALUE parser = rb_parser_new();
 	    rb_parser_set_context(parser, NULL, FALSE);
-	    node = (NODE *)rb_parser_load_file(parser, fname);
-	    iseq = rb_iseq_new_top(node, rb_fstring_cstr("<top (required)>"),
+	    ast = (ast_t *)rb_parser_load_file(parser, fname);
+	    iseq = rb_iseq_new_top(ast->root, rb_fstring_cstr("<top (required)>"),
 			    fname, rb_realpath_internal(Qnil, fname, 1), NULL);
+	    rb_ast_dispose(ast);
 	}
 	rb_iseq_eval(iseq);
     }