remove method call at runtime

pom.xml

@@ -0,0 +1,29 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.weiglewilczek.slf4s</groupId>
+    <artifactId>slf4s_2.8.1</artifactId>
+    <packaging>jar</packaging>
+    <version>1.0.3-SNAPSHOT</version>
+    <dependencies>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>1.6.1</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.scala-lang</groupId>
+            <artifactId>scala-library</artifactId>
+            <version>2.8.1</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+    <repositories>
+        <repository>
+            <id>ScalaToolsMaven2Repository</id>
+            <name>Scala-Tools Maven2 Repository</name>
+            <url>http://scala-tools.org/repo-releases/</url>
+        </repository>
+    </repositories>
+</project>

project/build/project.scala

@@ -10,6 +10,7 @@ import sbt._
 
 class SLF4SProject(info: ProjectInfo) extends DefaultProject(info) with BNDPlugin {
 
+
   // ===================================================================================================================
   // Dependencies
   // ===================================================================================================================
@@ -50,4 +51,6 @@ class SLF4SProject(info: ProjectInfo) extends DefaultProject(info) with BNDPlugi
   override def bndExportPackage =
     "com.weiglewilczek.slf4s;version=\"%s\"".format(projectVersion.value) :: Nil
   override def bndVersionPolicy = Some("[$(@),$(version;=+;$(@)))")
+
+override def compileOptions = super.compileOptions ++ compileOptions("-Xelide-below", "-1")
 }

src/main/scala/logger.scala

@@ -37,6 +37,8 @@ object Logger {
  * Thin wrapper for SLF4J making use of by-name parameters to improve performance.
  */
 trait Logger {
+  import scala.annotation.elidable
+  import scala.annotation.elidable._
 
   /**
    * The name of this Logger.
@@ -47,7 +49,7 @@ trait Logger {
    * Log a message with ERROR level.
    * @param msg The message to be logged
    */
-  def error(msg: => String) {
+   @elidable(SEVERE) def error(msg: => String) {
     if (slf4jLogger.isErrorEnabled) slf4jLogger error msg
   }
 
@@ -56,15 +58,15 @@ trait Logger {
    * @param msg The message to be logged
    * @param t The Throwable to be logged
    */
-  def error(msg: => String, t: Throwable) {
+   @elidable(SEVERE) def error(msg: => String, t: Throwable) {
     if (slf4jLogger.isErrorEnabled) slf4jLogger.error(msg, t)
   }
 
   /**
    * Log a message with WARN level.
    * @param msg The message to be logged
    */
-  def warn(msg: => String) {
+  @elidable(WARNING) def warn(msg: => String) {
     if (slf4jLogger.isWarnEnabled) slf4jLogger warn msg
   }
 
@@ -73,15 +75,15 @@ trait Logger {
    * @param msg The message to be logged
    * @param t The Throwable to be logged
    */
-  def warn(msg: => String, t: Throwable) {
+  @elidable(WARNING) def warn(msg: => String, t: Throwable) {
     if (slf4jLogger.isWarnEnabled) slf4jLogger.warn(msg, t)
   }
 
   /**
    * Log a message with INFO level.
    * @param msg The message to be logged
    */
-  def info(msg: => String) {
+  @elidable(INFO) def info(msg: => String) {
     if (slf4jLogger.isInfoEnabled) slf4jLogger info msg
   }
 
@@ -90,15 +92,15 @@ trait Logger {
    * @param msg The message to be logged
    * @param t The Throwable to be logged
    */
-  def info(msg: => String, t: Throwable) {
+  @elidable(INFO) def info(msg: => String, t: Throwable) {
     if (slf4jLogger.isInfoEnabled) slf4jLogger.info(msg, t)
   }
 
   /**
    * Log a message with DEBUG level.
    * @param msg The message to be logged
    */
-  def debug(msg: => String) {
+ @elidable(FINER) def debug(msg: => String) {
     if (slf4jLogger.isDebugEnabled) slf4jLogger debug msg
   }
 
@@ -107,15 +109,15 @@ trait Logger {
    * @param msg The message to be logged
    * @param t The Throwable to be logged
    */
-  def debug(msg: => String, t: Throwable) {
+  @elidable(FINER) def debug(msg: => String, t: Throwable) {
     if (slf4jLogger.isDebugEnabled) slf4jLogger.debug(msg, t)
   }
 
   /**
    * Log a message with TRACE level.
    * @param msg The message to be logged
    */
-  def trace(msg: => String) {
+  @elidable(FINEST) def trace(msg: => String) {
     if (slf4jLogger.isTraceEnabled) slf4jLogger trace msg
   }
 
@@ -124,7 +126,7 @@ trait Logger {
    * @param msg The message to be logged
    * @param t The Throwable to be logged
    */
-  def trace(msg: => String, t: Throwable) {
+  @elidable(FINEST) def trace(msg: => String, t: Throwable) {
     if (slf4jLogger.isTraceEnabled) slf4jLogger.trace(msg, t)
   }