1 files changed, 47 insertions, 0 deletions
diff --git a/javalanglib/src/main/scala/java/lang/Runtime.scala b/javalanglib/src/main/scala/java/lang/Runtime.scala
new file mode 100644
index 0000000..25aaa9f
--- /dev/null
+++ b/javalanglib/src/main/scala/java/lang/Runtime.scala
@@ -0,0 +1,47 @@
+package java.lang
+
+import scala.scalajs.js
+
+class Runtime private {
+  def exit(status: Int): Unit =
+    halt(status)
+
+  //def addShutdownHook(hook: Thread): Unit
+  //def removeShutdownHook(hook: Thread): Unit
+
+  def halt(status: Int): Unit = {
+    val envInfo = scala.scalajs.runtime.environmentInfo
+
+    if (js.typeOf(envInfo.exitFunction) == "function") {
+      envInfo.exitFunction(status)
+      throw new IllegalStateException("__ScalaJSEnv.exitFunction returned")
+    } else {
+      // We don't have an exit function. Fail
+      throw new SecurityException("Cannot terminate a JavaScript program. " +
+          "Define a JavaScript function `__ScalaJSEnv.exitFunction` to " +
+          "be called on exit.")
+    }
+  }
+
+  def availableProcessors(): Int = 1
+  //def freeMemory(): scala.Long
+  //def totalMemory(): scala.Long
+  //def maxMemory(): scala.Long
+
+  def gc(): Unit = {
+    // Ignore
+  }
+
+  //def runFinalization(): Unit
+  //def traceInstructions(on: scala.Boolean): Unit
+  //def traceMethodCalls(on: scala.Boolean): Unit
+
+  //def load(filename: String): Unit
+  //def loadLibrary(filename: String): Unit
+}
+
+object Runtime {
+  private val currentRuntime = new Runtime
+
+  def getRuntime() = currentRuntime
+}