From 84fe08869dfa46dc7f365cbdb0b49f3fef39636e Mon Sep 17 00:00:00 2001
From: Vadym Slizov <vadym.slizov@miacar.ch>
Date: Sat, 4 Jul 2020 18:04:12 +0300
Subject: [PATCH] [refactoring] allow nil parser.errHandlerFunc

---
 internal/php5/parser.go | 4 ++++
 internal/php7/parser.go | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/internal/php5/parser.go b/internal/php5/parser.go
index 04a37f3..1fe5085 100644
--- a/internal/php5/parser.go
+++ b/internal/php5/parser.go
@@ -36,6 +36,10 @@ func (p *Parser) Lex(lval *yySymType) int {
 }
 
 func (p *Parser) Error(msg string) {
+	if p.errHandlerFunc == nil {
+		return
+	}
+
 	var pos = p.currentToken.Position
 	p.errHandlerFunc(errors.NewError(msg, &pos))
 }
diff --git a/internal/php7/parser.go b/internal/php7/parser.go
index e7aa50e..f9530cc 100644
--- a/internal/php7/parser.go
+++ b/internal/php7/parser.go
@@ -35,6 +35,10 @@ func (p *Parser) Lex(lval *yySymType) int {
 }
 
 func (p *Parser) Error(msg string) {
+	if p.errHandlerFunc == nil {
+		return
+	}
+	
 	var pos = p.currentToken.Position
 	p.errHandlerFunc(errors.NewError(msg, &pos))
 }