From 7e8f997b3093962c55b001c62619438f473610a5 Mon Sep 17 00:00:00 2001
From: Ryo Nihei <nihei.dev@gmail.com>
Date: Wed, 5 May 2021 13:35:45 +0900
Subject: Remove Peek* functions

---
 driver/lexer.go | 26 --------------------------
 1 file changed, 26 deletions(-)

(limited to 'driver/lexer.go')

diff --git a/driver/lexer.go b/driver/lexer.go
index 72a6f69..486ff7d 100644
--- a/driver/lexer.go
+++ b/driver/lexer.go
@@ -201,32 +201,6 @@ func (l *lexer) Next() (*Token, error) {
 	return errTok, nil
 }
 
-func (l *lexer) Peek1() (*Token, error) {
-	return l.peekN(0)
-}
-
-func (l *lexer) Peek2() (*Token, error) {
-	return l.peekN(1)
-}
-
-func (l *lexer) Peek3() (*Token, error) {
-	return l.peekN(2)
-}
-
-func (l *lexer) peekN(n int) (*Token, error) {
-	if n < 0 || n > 2 {
-		return nil, fmt.Errorf("peekN() can handle only [0..2]")
-	}
-	for len(l.tokBuf) < n+1 {
-		tok, err := l.nextAndTranMode()
-		if err != nil {
-			return nil, err
-		}
-		l.tokBuf = append(l.tokBuf, tok)
-	}
-	return l.tokBuf[n], nil
-}
-
 func (l *lexer) nextAndTranMode() (*Token, error) {
 	tok, err := l.next()
 	if err != nil {
-- 
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