# HG changeset patch
# User Jaroslav Tulach <jaroslav.tulach@apidesign.org>
# Date 1354373292 -3600
# Node ID dde8422fb5ae17bb720cf861b792b729dc04124c
# Parent  b22dbc9329ece460ce1200eecf361f9393536b97
Optimistic support for Class.newInstance

diff -r b22dbc9329ec -r dde8422fb5ae emul/src/main/java/java/lang/Class.java
--- a/emul/src/main/java/java/lang/Class.java	Sat Dec 01 15:30:56 2012 +0100
+++ b/emul/src/main/java/java/lang/Class.java	Sat Dec 01 15:48:12 2012 +0100
@@ -191,10 +191,15 @@
      *             </ul>
      *
      */
+    @JavaScriptBody(args = "self", body =
+          "var inst = self.cnstr();"
+        + "inst.consV(inst);"
+        + "return inst;"
+    )
     public T newInstance()
         throws InstantiationException, IllegalAccessException
     {
-        throw new UnsupportedOperationException("Should be somehow supported");
+        throw new UnsupportedOperationException();
     }
 
     /**
diff -r b22dbc9329ec -r dde8422fb5ae vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java
--- a/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java	Sat Dec 01 15:30:56 2012 +0100
+++ b/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java	Sat Dec 01 15:48:12 2012 +0100
@@ -118,6 +118,7 @@
         out.append("\n    CLS.$class = java_lang_Class(true);");
         out.append("\n    CLS.$class.jvmName = '").append(jc.getClassName()).append("';");
         out.append("\n    CLS.$class.superclass = sprcls;");
+        out.append("\n    CLS.$class.cnstr = CLS;");
         out.append("\n  }");
         out.append("\n  if (arguments.length === 0) {");
         out.append("\n    if (!(this instanceof CLS)) {");
diff -r b22dbc9329ec -r dde8422fb5ae vm/src/test/java/org/apidesign/vm4brwsr/ClassTest.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/ClassTest.java	Sat Dec 01 15:30:56 2012 +0100
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/ClassTest.java	Sat Dec 01 15:48:12 2012 +0100
@@ -68,6 +68,12 @@
     @Test public void jsCanonicalName() throws Exception {
         assertExec("I/O simple name", Classes.class, "canonicalNameLjava_lang_String", "java.io.IOException");
     }
+    @Test public void javaNewInstance() throws Exception {
+        assertTrue(Classes.newInstance());
+    }
+    @Test public void jsNewInstance() throws Exception {
+        assertExec("Check new instance", Classes.class, "newInstanceZ", Double.valueOf(1));
+    }
     
     private static CharSequence codeSeq;
     private static Invocable code;
diff -r b22dbc9329ec -r dde8422fb5ae vm/src/test/java/org/apidesign/vm4brwsr/Classes.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/Classes.java	Sat Dec 01 15:30:56 2012 +0100
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/Classes.java	Sat Dec 01 15:48:12 2012 +0100
@@ -47,7 +47,11 @@
     public static String canonicalName() {
         return IOException.class.getCanonicalName();
     }
-    public static IOException newInstance() throws InstantiationException, IllegalAccessException {
-        return IOException.class.newInstance();
+    public static boolean newInstance() throws Exception {
+        IOException ioe = IOException.class.newInstance();
+        if (ioe instanceof IOException) {
+            return ioe.getClass() == IOException.class;
+        }
+        throw new IllegalStateException("Not a subtype: " + ioe);
     }
 }