5 files changed, 29 insertions, 10 deletions

diff --git a/src/coding.c b/src/coding.c
index 4e59f2b6a1b..49dcd8634f3 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -1431,7 +1431,7 @@ encode_coding_utf_8 (struct coding_system *coding)
   ptrdiff_t produced_chars = 0;
   int c;
 
-  if (CODING_UTF_8_BOM (coding) == utf_with_bom)
+  if (CODING_UTF_8_BOM (coding) != utf_without_bom)
     {
       ASSURE_DESTINATION (3);
       EMIT_THREE_BYTES (UTF_8_BOM_1, UTF_8_BOM_2, UTF_8_BOM_3);
diff --git a/src/fns.c b/src/fns.c
index bbc9a7f9621..d8bd7d318b0 100644
--- a/src/fns.c
+++ b/src/fns.c
@@ -38,6 +38,10 @@ along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 #include "puresize.h"
 #include "gnutls.h"
 
+#ifdef HAVE_TREE_SITTER
+#include "treesit.h"
+#endif
+
 enum equal_kind { EQUAL_NO_QUIT, EQUAL_PLAIN, EQUAL_INCLUDING_PROPERTIES };
 static bool internal_equal (Lisp_Object, Lisp_Object,
                             enum equal_kind, int, Lisp_Object);
@@ -2828,6 +2832,11 @@ internal_equal (Lisp_Object o1, Lisp_Object o2, enum equal_kind equal_kind,
                                 bool_vector_bytes (size)));
           }
 
+#ifdef HAVE_TREE_SITTER
+        if (TS_NODEP (o1))
+          return treesit_node_eq (o1, o2);
+#endif
+
         /* Aside from them, only true vectors, char-tables, compiled
            functions, and fonts (font-spec, font-entity, font-object)
            are sensible to compare, so eliminate the others now.  */
diff --git a/src/pgtkterm.c b/src/pgtkterm.c
index 5158492ca09..c00e13550bd 100644
--- a/src/pgtkterm.c
+++ b/src/pgtkterm.c
@@ -2959,7 +2959,8 @@ pgtk_draw_window_cursor (struct window *w, struct glyph_row *glyph_row, int x,
       if (w == XWINDOW (f->selected_window))
         {
           int frame_x = (WINDOW_TO_FRAME_PIXEL_X (w, x)
-                         + WINDOW_LEFT_FRINGE_WIDTH (w));
+                         + WINDOW_LEFT_FRINGE_WIDTH (w)
+                         + WINDOW_LEFT_MARGIN_WIDTH (w));
           int frame_y = WINDOW_TO_FRAME_PIXEL_Y (w, y);
           pgtk_im_set_cursor_location (f, frame_x, frame_y,
                                        w->phys_cursor_width,
diff --git a/src/treesit.c b/src/treesit.c
index 55463122d14..33a7e3c8528 100644
--- a/src/treesit.c
+++ b/src/treesit.c
@@ -2154,11 +2154,24 @@ If NODE is nil, return nil.  */)
   return make_treesit_node (XTS_NODE (node)->parser, child);
 }
 
+/* Return true if NODE1 and NODE2 are the same node.  Assumes they are
+   TS_NODE type.  */
+bool treesit_node_eq (Lisp_Object node1, Lisp_Object node2)
+{
+  treesit_initialize ();
+  TSNode treesit_node_1 = XTS_NODE (node1)->node;
+  TSNode treesit_node_2 = XTS_NODE (node2)->node;
+  return ts_node_eq (treesit_node_1, treesit_node_2);
+}
+
 DEFUN ("treesit-node-eq",
        Ftreesit_node_eq,
        Streesit_node_eq, 2, 2, 0,
-       doc: /* Return non-nil if NODE1 and NODE2 are the same node.
-If any one of NODE1 and NODE2 is nil, return nil.  */)
+       doc: /* Return non-nil if NODE1 and NODE2 refer to the same node.
+If any one of NODE1 and NODE2 is nil, return nil.
+This function uses the same equivalence metric as `equal', and returns
+non-nil if NODE1 and NODE2 refer to the same node in a syntax tree
+produced by tree-sitter.  */)
   (Lisp_Object node1, Lisp_Object node2)
 {
   if (NILP (node1) || NILP (node2))
@@ -2166,12 +2179,7 @@ If any one of NODE1 and NODE2 is nil, return nil.  */)
   CHECK_TS_NODE (node1);
   CHECK_TS_NODE (node2);
 
-  treesit_initialize ();
-
-  TSNode treesit_node_1 = XTS_NODE (node1)->node;
-  TSNode treesit_node_2 = XTS_NODE (node2)->node;
-
-  bool same_node = ts_node_eq (treesit_node_1, treesit_node_2);
+  bool same_node = treesit_node_eq (node1, node2);
   return same_node ? Qt : Qnil;
 }
 
diff --git a/src/treesit.h b/src/treesit.h
index 909609737d3..5382bc58817 100644
--- a/src/treesit.h
+++ b/src/treesit.h
@@ -191,6 +191,7 @@ extern bool treesit_node_uptodate_p (Lisp_Object);
 extern void treesit_delete_parser (struct Lisp_TS_Parser *);
 extern void treesit_delete_query (struct Lisp_TS_Query *);
 extern bool treesit_named_node_p (TSNode);
+extern bool treesit_node_eq (Lisp_Object, Lisp_Object);
 
 #endif  /* HAVE_TREE_SITTER */