From 1f8ad353d9fbf8fb7706e91dda336dfd650b57cc Mon Sep 17 00:00:00 2001 From: Yuan Fu Date: Sun, 8 Jan 2023 20:30:07 -0800 Subject: [PATCH] Minor improvement for tree-sitter explorer If you open an empty python buffer and type 1 + 2 a b Currently the explorer only displays the top-level node at point, ie, only 1 + 2, only a, or only b. That's kind of awkward, so if the buffer is small, show the entire parse tree. * lisp/treesit.el (treesit--explorer-refresh): See above. --- lisp/treesit.el | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/lisp/treesit.el b/lisp/treesit.el index e53d5d53bd0..7a604121c4e 100644 --- a/lisp/treesit.el +++ b/lisp/treesit.el @@ -2415,11 +2415,15 @@ in the region." (window-start) (window-end) treesit--explorer-language)) ;; Only highlight the current top-level construct. ;; Highlighting the whole buffer is slow and unnecessary. - (top-level (treesit-node-first-child-for-pos - root (if (eolp) - (max (point-min) (1- (point))) - (point)) - t)) + ;; But if the buffer is small (ie, used in playground + ;; style), just highlight the whole buffer. + (top-level (if (< (buffer-size) 4000) + root + (treesit-node-first-child-for-pos + root (if (eolp) + (max (point-min) (1- (point))) + (point)) + t))) ;; Only highlight node when region is active, if we ;; highlight node at point the syntax tree is too jumpy. (nodes-hl -- 2.39.5