From 45add937f0fe3637fb48403e6990e0eb5322d5ee Mon Sep 17 00:00:00 2001
From: mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 27 Oct 2017 16:02:34 +0000
Subject: Revert "Manage AST NODEs out of GC"

This reverts commit 620ba74778bfdbdc34ffbb142d49ce84a0ef58e9.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60486 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 node.c | 104 -----------------------------------------------------------------
 1 file changed, 104 deletions(-)

(limited to 'node.c')

diff --git a/node.c b/node.c
index d9c115ba3c..f6011d585d 100644
--- a/node.c
+++ b/node.c
@@ -1211,107 +1211,3 @@ rb_gc_mark_node(NODE *obj)
     }
     return 0;
 }
-
-typedef struct node_buffer_elem_struct {
-    struct node_buffer_elem_struct *next;
-    NODE buf[1];
-} node_buffer_elem_t;
-
-typedef struct node_buffer_struct {
-    long idx, len;
-    node_buffer_elem_t *head;
-    node_buffer_elem_t body;
-} node_buffer_t;
-
-node_buffer_t *
-rb_node_buffer_new()
-{
-    node_buffer_t *nb = xmalloc(sizeof(node_buffer_t) + 16 * sizeof(NODE));
-    nb->idx = 0;
-    nb->len = 16;
-    nb->head = &nb->body;
-    nb->head->next = NULL;
-    return nb;
-}
-
-void
-rb_node_buffer_free(node_buffer_t *nb)
-{
-    node_buffer_elem_t *nbe = nb->head;
-
-    while (nbe != &nb->body) {
-	void *buf = nbe;
-	nbe = nbe->next;
-	xfree(buf);
-    }
-    xfree(nb);
-}
-
-NODE *
-rb_ast_newnode(ast_t *ast)
-{
-    node_buffer_t *nb = ast->node_buffer;
-    if (nb->idx >= nb->len) {
-	long n = nb->len * 2;
-	node_buffer_elem_t *nbe;
-	nbe = xmalloc(sizeof(node_buffer_elem_t) + n * sizeof(NODE));
-	nb->idx = 0;
-	nb->len = n;
-	nbe->next = nb->head;
-	nb->head = nbe;
-    }
-    return &nb->head->buf[nb->idx++];
-}
-
-void
-rb_ast_delete_node(ast_t *ast, NODE *n)
-{
-    (void)ast;
-    (void)n;
-    /* should we implement freelist? */
-}
-
-ast_t *
-rb_ast_new(void)
-{
-    return (ast_t *)rb_imemo_new(imemo_ast, 0, (VALUE)rb_node_buffer_new(), rb_ary_tmp_new(0), 0);
-}
-
-void
-rb_ast_mark(ast_t *ast)
-{
-    if (ast->node_buffer) rb_gc_mark(ast->mark_ary);
-}
-
-void
-rb_ast_free(ast_t *ast)
-{
-    if (ast->node_buffer) rb_node_buffer_free(ast->node_buffer);
-    ast->node_buffer = 0;
-    ast->root = 0;
-    ast->mark_ary = 0;
-}
-
-void
-rb_ast_dispose(ast_t *ast)
-{
-    rb_ast_free(ast);
-    rb_gc_writebarrier_remember((VALUE)ast);
-}
-
-void
-rb_ast_add_mark_object(ast_t *ast, VALUE obj)
-{
-    rb_ary_push(ast->mark_ary, obj);
-}
-
-void
-rb_ast_delete_mark_object(ast_t *ast, VALUE obj)
-{
-    long i;
-    for (i = 0; i < RARRAY_LEN(ast->mark_ary); i++) {
-	if (obj == RARRAY_AREF(ast->mark_ary, i)) {
-	    RARRAY_ASET(ast->mark_ary, i, Qnil);
-	}
-    }
-}
-- 
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