Export Lexer methods

- They can be called in target-specific grammar actions, therefore must
  be exported.
- Their Java analogues are public methods.

runtime/Go/antlr/lexer.go

@@ -21,11 +21,11 @@ type Lexer interface {
 
 	Emit() Token
 
-	setChannel(int)
-	pushMode(int)
-	popMode() int
-	setType(int)
-	setMode(int)
+	SetChannel(int)
+	PushMode(int)
+	PopMode() int
+	SetType(int)
+	SetMode(int)
 }
 
 type BaseLexer struct {
@@ -150,7 +150,7 @@ func (b *BaseLexer) GetSourceName() string {
 	return b.GrammarFileName
 }
 
-func (b *BaseLexer) setChannel(v int) {
+func (b *BaseLexer) SetChannel(v int) {
 	b.channel = v
 }
 
@@ -250,11 +250,11 @@ func (b *BaseLexer) More() {
 	b.thetype = LexerMore
 }
 
-func (b *BaseLexer) setMode(m int) {
+func (b *BaseLexer) SetMode(m int) {
 	b.mode = m
 }
 
-func (b *BaseLexer) pushMode(m int) {
+func (b *BaseLexer) PushMode(m int) {
 	if LexerATNSimulatorDebug {
 		fmt.Println("pushMode " + strconv.Itoa(m))
 	}
@@ -262,7 +262,7 @@ func (b *BaseLexer) pushMode(m int) {
 	b.mode = m
 }
 
-func (b *BaseLexer) popMode() int {
+func (b *BaseLexer) PopMode() int {
 	if len(b.modeStack) == 0 {
 		panic("Empty Stack")
 	}
@@ -331,7 +331,7 @@ func (b *BaseLexer) GetType() int {
 	return b.thetype
 }
 
-func (b *BaseLexer) setType(t int) {
+func (b *BaseLexer) SetType(t int) {
 	b.thetype = t
 }
 

runtime/Go/antlr/lexer_action.go

@@ -101,7 +101,7 @@ func NewLexerTypeAction(thetype int) *LexerTypeAction {
 }
 
 func (l *LexerTypeAction) execute(lexer Lexer) {
-	lexer.setType(l.thetype)
+	lexer.SetType(l.thetype)
 }
 
 func (l *LexerTypeAction) hash() int {
@@ -145,7 +145,7 @@ func NewLexerPushModeAction(mode int) *LexerPushModeAction {
 // <p>This action is implemented by calling {@link Lexer//pushMode} with the
 // value provided by {@link //getMode}.</p>
 func (l *LexerPushModeAction) execute(lexer Lexer) {
-	lexer.pushMode(l.mode)
+	lexer.PushMode(l.mode)
 }
 
 func (l *LexerPushModeAction) hash() int {
@@ -190,7 +190,7 @@ var LexerPopModeActionINSTANCE = NewLexerPopModeAction()
 
 // <p>This action is implemented by calling {@link Lexer//popMode}.</p>
 func (l *LexerPopModeAction) execute(lexer Lexer) {
-	lexer.popMode()
+	lexer.PopMode()
 }
 
 func (l *LexerPopModeAction) String() string {
@@ -242,7 +242,7 @@ func NewLexerModeAction(mode int) *LexerModeAction {
 // <p>This action is implemented by calling {@link Lexer//mode} with the
 // value provided by {@link //getMode}.</p>
 func (l *LexerModeAction) execute(lexer Lexer) {
-	lexer.setMode(l.mode)
+	lexer.SetMode(l.mode)
 }
 
 func (l *LexerModeAction) hash() int {
@@ -341,7 +341,7 @@ func NewLexerChannelAction(channel int) *LexerChannelAction {
 // <p>This action is implemented by calling {@link Lexer//setChannel} with the
 // value provided by {@link //getChannel}.</p>
 func (l *LexerChannelAction) execute(lexer Lexer) {
-	lexer.setChannel(l.channel)
+	lexer.SetChannel(l.channel)
 }
 
 func (l *LexerChannelAction) hash() int {