#28 fix race conditions

Makefile

@@ -22,6 +22,8 @@ bench:
 	go test -benchmem -bench=. ./php7
 
 compile: ./php5/php5.go ./php7/php7.go ./scanner/scanner.go
+	sed -i '' -e 's/yyErrorVerbose = false/yyErrorVerbose = true/g' ./php7/php7.go
+	sed -i '' -e 's/yyErrorVerbose = false/yyErrorVerbose = true/g' ./php5/php5.go
 	rm -f y.output
 
 ./scanner/scanner.go: ./scanner/scanner.l

main.go

@@ -64,7 +64,11 @@ func parserWorker(pathCh <-chan string, result chan<- parser.Parser) {
 	var parserWorker parser.Parser
 
 	for {
-		path := <-pathCh
+		path, ok := <-pathCh
+		if !ok {
+			return
+		}
+
 		src, _ := os.Open(path)
 
 		if *usePhp5 {
@@ -80,7 +84,11 @@ func parserWorker(pathCh <-chan string, result chan<- parser.Parser) {
 
 func printer(result <-chan parser.Parser) {
 	for {
-		parserWorker := <-result
+		parserWorker, ok := <-result
+		if !ok {
+			return
+		}
+
 		fmt.Printf("==> %s\n", parserWorker.GetPath())
 
 		for _, e := range parserWorker.GetErrors() {

php5/parser.go

@@ -56,9 +56,6 @@ func (l *Parser) Error(msg string) {
 
 // Parse the php7 Parser entrypoint
 func (l *Parser) Parse() int {
-	yyDebug = 0
-	yyErrorVerbose = true
-
 	// init
 	l.errors = nil
 	l.rootNode = nil

php5/php5.go

@@ -1968,7 +1968,7 @@ var yyErrorMessages = [...]struct {
 
 var (
 	yyDebug        = 0
-	yyErrorVerbose = false
+	yyErrorVerbose = true
 )
 
 type yyLexer interface {

php7/parser.go

@@ -56,9 +56,6 @@ func (l *Parser) Error(msg string) {
 
 // Parse the php7 Parser entrypoint
 func (l *Parser) Parse() int {
-	yyDebug = 0
-	yyErrorVerbose = true
-
 	// init
 	l.errors = nil
 	l.rootNode = nil

php7/php7.go

@@ -1758,7 +1758,7 @@ var yyErrorMessages = [...]struct {
 
 var (
 	yyDebug        = 0
-	yyErrorVerbose = false
+	yyErrorVerbose = true
 )
 
 type yyLexer interface {