From ea8daec9bb8ebf3cbca35edec4e4ef7b6edac3de Mon Sep 17 00:00:00 2001
From: Stefan Monnier
Date: Wed, 28 Sep 2022 19:05:16 -0400
Subject: itree.[ch]: Add sanity checks, comments, and minor tweaks

* src/alloc.c (mark_overlay): Add sanity check.

* src/buffer.c (next_overlay_change, previous_overlay_change):
Tweak code to keep the same vars for the bounds.

* src/itree.c (interval_tree_clear, interval_tree_insert)
(interval_tree_remove, interval_tree_insert_fix, interval_tree_remove_fix):
Adjust to the `color` -> `red` change.
(interval_tree_clear): Prefer `true/false` for booleans.
(interval_generator_create): Use an actual `interval_tree_order` value
rather than 0.
(interval_generator_next): Simplify a tiny bit.  Add comment.
(interval_generator_narrow): Add sanity check.

* src/itree.h (struct interval_node): Replace `color` field with
boolean `red` field.
(enum interval_tree_order): Remove unused `ITREE_DEFLT_ORDER` value.

* src/pdumper.c (dump_interval_node): Adjust to the
`color` -> `red` change.
---
 src/pdumper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/pdumper.c')

diff --git a/src/pdumper.c b/src/pdumper.c
index 79644c01517..44486015f05 100644
--- a/src/pdumper.c
+++ b/src/pdumper.c
@@ -2154,7 +2154,7 @@ dump_interval_node (struct dump_context *ctx, struct interval_node *node,
   DUMP_FIELD_COPY (&out, node, offset);
   DUMP_FIELD_COPY (&out, node, otick);
   dump_field_lv (ctx, &out, node, &node->data, WEIGHT_STRONG);
-  DUMP_FIELD_COPY (&out, node, color);
+  DUMP_FIELD_COPY (&out, node, red);
   DUMP_FIELD_COPY (&out, node, visited);
   DUMP_FIELD_COPY (&out, node, rear_advance);
   DUMP_FIELD_COPY (&out, node, front_advance);
-- 
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