fix

vlib/v/parser/if_match.v

@@ -234,12 +234,18 @@ fn (mut p Parser) is_match_sumtype_type() bool {
 	is_option := p.tok.kind == .question
 	name_tok := if is_option { p.peek_tok } else { p.tok }
 	next_tok_kind := if is_option { p.peek_token(2).kind } else { p.peek_tok.kind }
-	next_next_tok := if is_option { p.peek_token(3) } else { p.peek_token(2) }
+	next_next_idx := if is_option { 3 } else { 2 }
+	next_next_tok := if is_option {
+		p.peek_token(next_next_idx)
+	} else {
+		p.peek_token(next_next_idx)
+	}
 
 	return name_tok.kind == .name && !(name_tok.lit == 'C' && next_tok_kind == .dot)
 		&& (((ast.builtin_type_names_matcher.matches(name_tok.lit) || name_tok.lit[0].is_capital())
-		&& next_tok_kind != .lpar) || (next_tok_kind == .dot && next_next_tok.lit.len > 0
-		&& next_next_tok.lit[0].is_capital()))
+		&& next_tok_kind != .lpar && !(next_tok_kind == .dot && next_next_tok.kind == .name
+		&& p.peek_token(next_next_idx + 1).kind == .lpar)) || (next_tok_kind == .dot
+		&& next_next_tok.lit.len > 0 && next_next_tok.lit[0].is_capital()))
 }
 
 fn (mut p Parser) match_expr() ast.MatchExpr {

vlib/v/tests/fns/static_call_on_match_test.v

@@ -0,0 +1,17 @@
+struct User {}
+
+fn User.is_ok() bool {
+	return true
+}
+
+fn test_main() {
+	a := match true {
+		User.is_ok() {
+			1
+		}
+		else {
+			2
+		}
+	}
+	assert a == 1
+}