Convert Slf4jFernflowerLogger to Kotlin

decompiler/src/main/java/dev/openrs2/decompiler/Slf4jFernflowerLogger.java

@@ -1,60 +0,0 @@
-package dev.openrs2.decompiler;
-
-import org.jetbrains.java.decompiler.main.extern.IFernflowerLogger;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public final class Slf4jFernflowerLogger extends IFernflowerLogger {
-	private static final Logger logger = LoggerFactory.getLogger(Slf4jFernflowerLogger.class);
-
-	public static final IFernflowerLogger INSTANCE = new Slf4jFernflowerLogger();
-
-	private Slf4jFernflowerLogger() {
-		/* empty */
-	}
-
-	@Override
-	public void startClass(String className) {
-		logger.info("Decompiling {}", className);
-	}
-
-	@Override
-	public void writeMessage(String message, Severity severity) {
-		switch (severity) {
-		case TRACE:
-			logger.trace(message);
-			break;
-		case INFO:
-			logger.info(message);
-			break;
-		case WARN:
-			logger.warn(message);
-			break;
-		case ERROR:
-			logger.error(message);
-			break;
-		default:
-			throw new IllegalArgumentException();
-		}
-	}
-
-	@Override
-	public void writeMessage(String message, Severity severity, Throwable t) {
-		switch (severity) {
-		case TRACE:
-			logger.trace(message, t);
-			break;
-		case INFO:
-			logger.info(message, t);
-			break;
-		case WARN:
-			logger.warn(message, t);
-			break;
-		case ERROR:
-			logger.error(message, t);
-			break;
-		default:
-			throw new IllegalArgumentException();
-		}
-	}
-}

decompiler/src/main/java/dev/openrs2/decompiler/Slf4jFernflowerLogger.kt

@@ -0,0 +1,32 @@
+package dev.openrs2.decompiler
+
+import com.github.michaelbull.logging.InlineLogger
+import org.jetbrains.java.decompiler.main.extern.IFernflowerLogger
+
+object Slf4jFernflowerLogger : IFernflowerLogger() {
+    private val logger = InlineLogger()
+
+    override fun startClass(className: String) {
+        logger.info { "Decompiling $className" }
+    }
+
+    override fun writeMessage(message: String, severity: Severity) {
+        when (severity) {
+            Severity.TRACE -> logger.trace { message }
+            Severity.INFO -> logger.info { message }
+            Severity.WARN -> logger.warn { message }
+            Severity.ERROR -> logger.error { message }
+            else -> throw IllegalArgumentException()
+        }
+    }
+
+    override fun writeMessage(message: String, severity: Severity, t: Throwable) {
+        when (severity) {
+            Severity.TRACE -> logger.trace(t) { message }
+            Severity.INFO -> logger.info(t) { message }
+            Severity.WARN -> logger.warn(t) { message }
+            Severity.ERROR -> logger.error(t) { message }
+            else -> throw IllegalArgumentException()
+        }
+    }
+}