From ee5f43a796f6c331142bc381ae0354f578d5200f Mon Sep 17 00:00:00 2001
From: Miguel Young de la Sota <myoung@buf.build>
Date: Thu, 21 Nov 2024 13:23:33 -0800
Subject: [PATCH] fix crash

---
 private/buf/buflsp/symbol.go | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/private/buf/buflsp/symbol.go b/private/buf/buflsp/symbol.go
index 1886272ef1..f9c07f577b 100644
--- a/private/buf/buflsp/symbol.go
+++ b/private/buf/buflsp/symbol.go
@@ -672,7 +672,9 @@ func (w *symbolWalker) Walk(node, parent ast.Node) {
 	case *ast.GroupNode:
 		def := w.newDef(node, node.Name)
 		w.newDef(node, node.Name)
-		w.newTag(node.Tag, def)
+		if node.Tag != nil {
+			w.newTag(node.Tag, def)
+		}
 		// TODO: also do the name of the generated field.
 		for _, decl := range node.Decls {
 			w.Walk(decl, node)
@@ -681,7 +683,9 @@ func (w *symbolWalker) Walk(node, parent ast.Node) {
 	case *ast.FieldNode:
 		def := w.newDef(node, node.Name)
 		w.newRef(node.FldType)
-		w.newTag(node.Tag, def)
+		if node.Tag != nil {
+			w.newTag(node.Tag, def)
+		}
 		if node.Options != nil {
 			for _, option := range node.Options.Options {
 				w.Walk(option, node)
@@ -692,7 +696,9 @@ func (w *symbolWalker) Walk(node, parent ast.Node) {
 		def := w.newDef(node, node.Name)
 		w.newRef(node.MapType.KeyType)
 		w.newRef(node.MapType.ValueType)
-		w.newTag(node.Tag, def)
+		if node.Tag != nil {
+			w.newTag(node.Tag, def)
+		}
 		if node.Options != nil {
 			for _, option := range node.Options.Options {
 				w.Walk(option, node)
@@ -717,7 +723,9 @@ func (w *symbolWalker) Walk(node, parent ast.Node) {
 
 	case *ast.EnumValueNode:
 		def := w.newDef(node, node.Name)
-		w.newTag(node.Number, def)
+		if node.Number != nil {
+			w.newTag(node.Number, def)
+		}
 		if node.Options != nil {
 			for _, option := range node.Options.Options {
 				w.Walk(option, node)