implements Class.getSimpleName()

src/de/inetsoftware/jwebassembly/module/nativecode/ReplacementForClass.java

@@ -171,6 +171,16 @@ class ReplacementForClass<T> {
                     "return" )
     private static native int getIntFromMemory( int pos );
 
+    /**
+     * Replacement of the Java methods isInstance()
+     * 
+     * @param obj
+     *            the object to check
+     * @return true if {@code obj} is an instance of this class
+     */
+    @WasmTextCode( "unreachable" ) // TODO
+    public native boolean isInstance( Object obj );
+
     /**
      * Replacement of the Java methods isArray()
      * @return {@code true} if this object represents an array class;
@@ -233,6 +243,35 @@ class ReplacementForClass<T> {
         return classIdx >= 0 ? classConstant( classIdx ) : null;
     }
 
+    /**
+     * Replacement of the Java methods getSimpleName()
+     * 
+     * @return the simple name of the underlying class
+     */
+    public String getSimpleName() {
+        if( isArray() )
+            return getComponentType().getSimpleName() + "[]";
+
+        String simpleName = getName();
+        int index = simpleName.lastIndexOf( "$" ) + 1;
+        if( index == 0 ) { // top level class
+            return simpleName.substring( simpleName.lastIndexOf( "." ) + 1 ); // strip the package name
+        }
+
+        // Remove leading "\$[0-9]*" from the name
+        int length = simpleName.length();
+        while( index < length ) {
+            char ch = simpleName.charAt( index );
+            if( '0' <= ch && ch <= '9' ) {
+                index++;
+            } else  {
+                break;
+            }
+        }
+        // Eventually, this is the empty string iff this is an anonymous class
+        return simpleName.substring( index );
+    }
+
     /**
      * Replacement of the Java methods getDeclaredMethod()
      */

test/de/inetsoftware/jwebassembly/runtime/StructsNonGC.java

@@ -73,6 +73,11 @@ public class StructsNonGC extends AbstractBaseTest {
             addParam( list, script, "lambda1" );
             addParam( list, script, "lambda2" );
             addParam( list, script, "lambda3" );
+            addParam( list, script, "simpleName_Object" );
+            addParam( list, script, "simpleName_Anonymous" );
+            addParam( list, script, "simpleName_Array" );
+            addParam( list, script, "simpleName_InnerClass" );
+            addParam( list, script, "simpleName_LocalClass" );
         }
         rule.setTestParameters( list );
         return list;
@@ -227,6 +232,41 @@ public class StructsNonGC extends AbstractBaseTest {
             return JSObject.domString( clazz.getName() );
         }
 
+        @Export
+        static DOMString simpleName_Object() {
+            Object obj = new Object();
+            Class clazz = obj.getClass();
+            return JSObject.domString( clazz.getSimpleName() );
+        }
+
+        @Export
+        static DOMString simpleName_Anonymous() {
+            Object obj = new Object() {};
+            Class clazz = obj.getClass();
+            return JSObject.domString( clazz.getSimpleName() );
+        }
+
+        @Export
+        static DOMString simpleName_Array() {
+            Object obj = new Object[0];
+            Class clazz = obj.getClass();
+            return JSObject.domString( clazz.getSimpleName() );
+        }
+
+        @Export
+        static DOMString simpleName_InnerClass() {
+            Class clazz = TestClass.class;
+            return JSObject.domString( clazz.getSimpleName() );
+        }
+
+        @Export
+        static DOMString simpleName_LocalClass() {
+            class Foobar {}
+            Object obj = new Foobar();
+            Class clazz = obj.getClass();
+            return JSObject.domString( clazz.getSimpleName() );
+        }
+
         @Export
         static boolean getComponentType() {
             Class<?> clazz = byte.class;