From 02ebb9bb630de5bc589e509e10c1d82629ab6487 Mon Sep 17 00:00:00 2001
From: Ryo Nihei <nihei.dev@gmail.com>
Date: Sat, 31 Jul 2021 14:00:52 +0900
Subject: Detect duplicate names between terminals and non-terminals

---
 driver/parser_test.go | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'driver/parser_test.go')

diff --git a/driver/parser_test.go b/driver/parser_test.go
index 8145d7b..5763d63 100644
--- a/driver/parser_test.go
+++ b/driver/parser_test.go
@@ -366,6 +366,32 @@ a
     ;
 foo: "foo";
 bar: "bar";
+`,
+			specErr: true,
+		},
+		// A terminal and a non-terminal (start symbol) are duplicates.
+		{
+			specSrc: `
+a
+    : foo
+    ;
+foo: "foo";
+a: "a";
+`,
+			specErr: true,
+		},
+		// A terminal and a non-terminal (not start symbol) are duplicates.
+		{
+			specSrc: `
+a
+    : foo
+    ;
+b
+    : bar
+    ;
+foo: "foo";
+bar: "bar";
+b: "a";
 `,
 			specErr: true,
 		},
-- 
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