X-Git-Url: https://git.giacomolli.uk/onechat/blobdiff_plain/0cb73c3dde36d0078f3c1aa4200f2edcb5ceed38..448c931a776c3e3f65ca2eab11da0c062d597818:/view.go

diff --git a/view.go b/view.go
index 4a6e567..8877462 100644
--- a/view.go
+++ b/view.go
@@ -88,7 +88,7 @@ func (v *View) Append(tree ViewNodeReader) (bool, error) {
 	line := NodeKey{0, v.end}
 	_, err := v.load(tree, line)
 	if err != nil {
-		return false, err
+		return false, fmt.Errorf("load appended leaf: %w", err)
 	}
 
 	v.lines = append(v.lines, line)
@@ -121,14 +121,18 @@ func (v *View) fit(tree ViewNodeReader) (bool, error) {
 	for v.merging && size > v.low {
 		best, err := v.mostDue(tree)
 		if err != nil || best < 0 {
-			return merged, err
+			if err != nil {
+				return merged, fmt.Errorf("choose merge candidate: %w", err)
+			}
+
+			return merged, nil
 		}
 
 		left, right := v.lines[best], v.lines[best+1]
 		parent := NodeKey{left.level + 1, left.index / 2}
 		_, err = v.load(tree, parent)
 		if err != nil {
-			return merged, err
+			return merged, fmt.Errorf("load merged parent: %w", err)
 		}
 
 		size += v.lineSize(parent) - v.lineSize(left) - v.lineSize(right)
@@ -341,7 +345,7 @@ func restoreView(state ViewState, high, low int, tree ViewNodeReader) (*View, er
 
 		built, err := v.load(tree, line)
 		if err != nil {
-			return nil, err
+			return nil, fmt.Errorf("load restored view node: %w", err)
 		}
 
 		if line.level > 0 && !built {