1 files changed, 119 insertions, 0 deletions
diff --git a/examples/scala-js/compiler/src/main/scala/scala/scalajs/compiler/JSPrimitives.scala b/examples/scala-js/compiler/src/main/scala/scala/scalajs/compiler/JSPrimitives.scala
new file mode 100644
index 0000000..b8c20e6
--- /dev/null
+++ b/examples/scala-js/compiler/src/main/scala/scala/scalajs/compiler/JSPrimitives.scala
@@ -0,0 +1,119 @@
+/* Scala.js compiler
+ * Copyright 2013 LAMP/EPFL
+ * @author  Sébastien Doeraene
+ */
+
+package scala.scalajs.compiler
+
+import scala.tools.nsc._
+
+import scala.collection.mutable
+
+/** Extension of ScalaPrimitives for primitives only relevant to the JS backend
+ *
+ *  @author Sébastie Doeraene
+ */
+abstract class JSPrimitives {
+  val global: Global
+
+  type ThisJSGlobalAddons = JSGlobalAddons {
+    val global: JSPrimitives.this.global.type
+  }
+
+  val jsAddons: ThisJSGlobalAddons
+
+  import global._
+  import jsAddons._
+  import definitions._
+  import rootMirror._
+  import jsDefinitions._
+  import scalaPrimitives._
+
+  val GETCLASS = 301 // Object.getClass()
+
+  val F2JS = 305     // FunctionN to js.FunctionN
+  val F2JSTHIS = 306 // FunctionN to js.ThisFunction{N-1}
+
+  val DYNNEW = 321 // Instantiate a new JavaScript object
+
+  val DYNSELECT = 330 // js.Dynamic.selectDynamic
+  val DYNUPDATE = 331 // js.Dynamic.updateDynamic
+  val DYNAPPLY = 332  // js.Dynamic.applyDynamic
+  val DYNLITN = 333   // js.Dynamic.literal.applyDynamicNamed
+  val DYNLIT = 334    // js.Dynamic.literal.applyDynamic
+
+  val DICT_DEL = 335   // js.Dictionary.delete
+
+  val ARR_CREATE = 337 // js.Array.apply (array literal syntax)
+
+  val UNDEFVAL = 342  // js.undefined
+  val ISUNDEF = 343   // js.isUndefined
+  val TYPEOF = 344    // typeof x
+  val DEBUGGER = 345  // js.debugger()
+  val HASPROP = 346   // js.Object.hasProperty(o, p), equiv to `p in o` in JS
+  val OBJPROPS = 347  // js.Object.properties(o), equiv to `for (p in o)` in JS
+  val JS_NATIVE = 348 // js.native. Marker method. Fails if tried to be emitted.
+
+  val UNITVAL = 349  // () value, which is undefined
+  val UNITTYPE = 350 // BoxedUnit.TYPE (== classOf[Unit])
+
+  val ENV_INFO = 353  // __ScalaJSEnv via helper
+
+  /** Initialize the map of primitive methods (for GenJSCode) */
+  def init(): Unit = initWithPrimitives(addPrimitive)
+
+  /** Init the map of primitive methods for Scala.js (for PrepJSInterop) */
+  def initPrepJSPrimitives(): Unit = {
+    scalaJSPrimitives.clear()
+    initWithPrimitives(scalaJSPrimitives.put)
+  }
+
+  /** Only call from PrepJSInterop. In GenJSCode, use
+   *  scalaPrimitives.isPrimitive instead
+   */
+  def isJavaScriptPrimitive(sym: Symbol): Boolean =
+    scalaJSPrimitives.contains(sym)
+
+  private val scalaJSPrimitives = mutable.Map.empty[Symbol, Int]
+
+  private def initWithPrimitives(addPrimitive: (Symbol, Int) => Unit): Unit = {
+    addPrimitive(Object_getClass, GETCLASS)
+
+    for (i <- 0 to 22)
+      addPrimitive(JSAny_fromFunction(i), F2JS)
+    for (i <- 1 to 22)
+      addPrimitive(JSThisFunction_fromFunction(i), F2JSTHIS)
+
+    addPrimitive(JSDynamic_newInstance, DYNNEW)
+
+    addPrimitive(JSDynamic_selectDynamic, DYNSELECT)
+    addPrimitive(JSDynamic_updateDynamic, DYNUPDATE)
+    addPrimitive(JSDynamic_applyDynamic, DYNAPPLY)
+    addPrimitive(JSDynamicLiteral_applyDynamicNamed, DYNLITN)
+    addPrimitive(JSDynamicLiteral_applyDynamic, DYNLIT)
+
+    addPrimitive(JSDictionary_delete, DICT_DEL)
+
+    addPrimitive(JSArray_create, ARR_CREATE)
+
+    val ntModule = getRequiredModule("scala.reflect.NameTransformer")
+
+    addPrimitive(JSPackage_typeOf, TYPEOF)
+    addPrimitive(JSPackage_debugger, DEBUGGER)
+    addPrimitive(JSPackage_undefined, UNDEFVAL)
+    addPrimitive(JSPackage_isUndefined, ISUNDEF)
+    addPrimitive(JSPackage_native, JS_NATIVE)
+
+    addPrimitive(JSObject_hasProperty, HASPROP)
+    addPrimitive(JSObject_properties, OBJPROPS)
+
+    addPrimitive(BoxedUnit_UNIT, UNITVAL)
+    addPrimitive(BoxedUnit_TYPE, UNITTYPE)
+
+    addPrimitive(getMember(RuntimePackageModule,
+        newTermName("environmentInfo")), ENV_INFO)
+  }
+
+  def isJavaScriptPrimitive(code: Int) =
+    code >= 300 && code < 360
+}