Numbers.java

/*
 * Copyright 2010 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package java.nio;

import com.google.gwt.typedarrays.shared.Float32Array;
import com.google.gwt.typedarrays.shared.Float64Array;
import com.google.gwt.typedarrays.shared.Int32Array;
import com.google.gwt.typedarrays.shared.Int8Array;
import com.google.gwt.typedarrays.shared.TypedArrays;

class Numbers {
	static Int8Array wba = TypedArrays.createInt8Array(8);
	static Int32Array wia = TypedArrays.createInt32Array(wba.buffer(), 0, 2);
	static Float32Array wfa = TypedArrays.createFloat32Array(wba.buffer(), 0, 2);
	static Float64Array wda = TypedArrays.createFloat64Array(wba.buffer(), 0, 1);

	public static final int floatToIntBits(float f) {
		wfa.set(0, f);
		return wia.get(0);
	}

	public static final float intBitsToFloat(int i) {
		wia.set(0, i);
		return wfa.get(0);
	}

	public static final double longBitsToDouble(long i) {
	  throw new RuntimeException("longBitsToDouble NYI");
	}

	public static final long doubleToRawLongBits(double i) {
	  throw new RuntimeException("doubleToRawLongBits NYI");
	}

	// TODO(jgw): Ugly hack to avoid longs.
	public static final void setDouble(double d) {
	  wda.set(0, d);
	}

	public static final double getDouble() {
	  return wda.get(0);
	}

	public static final int getLoInt() {
	  return wia.get(0);
	}

	public static final int getHiInt() {
	  return wia.get(1);
	}

	public static final void setLoInt(int i) {
	  wia.set(0, i);
	}

	public static final void setHiInt(int i) {
	  wia.set(1, i);
	}
}