fix snippets

src/server/completion.odin

@@ -675,6 +675,14 @@ get_selector_completion :: proc(
 			selector,
 			&items,
 		)
+	case SymbolSliceValue:
+		list.isIncomplete = false
+		append_magic_dynamic_array_completion(
+			position_context,
+			selector,
+			&items,
+		)
+
 	case SymbolMapValue:
 		list.isIncomplete = false
 		append_magic_map_completion(position_context, selector, &items)
@@ -1732,7 +1740,7 @@ append_magic_map_completion :: proc(
 
 	additionalTextEdits := make([]TextEdit, 1, context.temp_allocator)
 	additionalTextEdits[0] = remove_edit
-
+	symbol_str := get_expression_string_from_position_context(position_context)
 	//for
 	{
 		item := CompletionItem {
@@ -1743,7 +1751,7 @@ append_magic_map_completion :: proc(
 			textEdit = TextEdit {
 				newText = fmt.tprintf(
 					"for ${{1:k}}, ${{2:v}} in %v {{\n\t$0 \n}}",
-					symbol.name,
+					symbol_str,
 				),
 				range = {start = range.end, end = range.end},
 			},
@@ -1754,7 +1762,17 @@ append_magic_map_completion :: proc(
 		append(items, item)
 	}
 }
-
+get_expression_string_from_position_context :: proc(position_context: ^DocumentPositionContext) -> string {
+	src := position_context.file.src
+	if position_context.call != nil {
+		return src[position_context.call.pos.offset:position_context.call.end.offset]
+	} else if position_context.field != nil {
+		return src[position_context.field.pos.offset:position_context.field.end.offset]
+	} else if position_context.selector != nil {
+		return src[position_context.selector.pos.offset:position_context.selector.end.offset]
+	}
+	return ""
+}
 append_magic_dynamic_array_completion :: proc(
 	position_context: ^DocumentPositionContext,
 	symbol: Symbol,
@@ -1779,9 +1797,11 @@ append_magic_dynamic_array_completion :: proc(
 	additionalTextEdits := make([]TextEdit, 1, context.temp_allocator)
 	additionalTextEdits[0] = remove_edit
 
+	symbol_str := get_expression_string_from_position_context(position_context)
+
 	//len
 	{
-		text := fmt.tprintf("len(%v)", symbol.name)
+		text := fmt.tprintf("len(%v)", symbol_str)
 
 		item := CompletionItem {
 			label = "len",
@@ -1807,7 +1827,7 @@ append_magic_dynamic_array_completion :: proc(
 			textEdit = TextEdit {
 				newText = fmt.tprintf(
 					"for i in %v {{\n\t$0 \n}}",
-					symbol.name,
+					symbol_str,
 				),
 				range = {start = range.end, end = range.end},
 			},