Moved SoftwareSerial only methods to macro guards

src/ISerial.cpp

@@ -8,41 +8,10 @@ void ISerial::begin(long speed) {
   _mod->ModuleSerial->begin(speed);
 }
 
-bool ISerial::listen() {
-#ifdef RADIOLIB_SOFTWARE_SERIAL_UNSUPPORTED
-  return true;
-#else
-  return(_mod->ModuleSerial->listen());
-#endif
-}
-
 void ISerial::end() {
   _mod->ModuleSerial->end();
 }
 
-bool ISerial::isListening() {
-#ifdef RADIOLIB_SOFTWARE_SERIAL_UNSUPPORTED
-  return true;
-#else
-  return(_mod->ModuleSerial->isListening());
-#endif
-}
-
-bool ISerial::stopListening() {
-#ifdef RADIOLIB_SOFTWARE_SERIAL_UNSUPPORTED
-  return true;
-#else
-  return(_mod->ModuleSerial->stopListening());
-#endif
-}
-
-bool ISerial::overflow() {
-#ifdef RADIOLIB_SOFTWARE_SERIAL_UNSUPPORTED
-  return false;
-#else
-  return(_mod->ModuleSerial->overflow());
-#endif
-}
 
 int ISerial::peek() {
   return(_mod->ModuleSerial->peek());
@@ -64,6 +33,25 @@ void ISerial::flush() {
   _mod->ModuleSerial->flush();
 }
 
+// SoftwareSerial-only methods
+#if !defined(RADIOLIB_SOFTWARE_SERIAL_UNSUPPORTED)
+bool ISerial::listen() {
+  return(_mod->ModuleSerial->listen());
+}
+
+bool ISerial::isListening() {
+  return(_mod->ModuleSerial->isListening());
+}
+
+bool ISerial::stopListening() {
+  return(_mod->ModuleSerial->stopListening());
+}
+
+bool ISerial::overflow() {
+  return(_mod->ModuleSerial->overflow());
+}
+#endif
+
 size_t ISerial::print(const __FlashStringHelper *ifsh) {
   return(_mod->ModuleSerial->print(ifsh));
 }

src/ISerial.h

@@ -18,17 +18,21 @@ class ISerial {
     explicit ISerial(Module* mod);
 
     void begin(long);
-    bool listen();
     void end();
-    bool isListening();
-    bool stopListening();
-    bool overflow();
     int peek();
     size_t write(uint8_t);
     int read();
     int available();
     void flush();
 
+    // SoftwareSerial-only methods
+    #if !defined(RADIOLIB_SOFTWARE_SERIAL_UNSUPPORTED)
+    bool listen();
+    bool isListening();
+    bool stopListening();
+    bool overflow();
+    #endif
+
     size_t print(const __FlashStringHelper *);
     size_t print(const String &);
     size_t print(const char[]);