Add support for reading and writing double array values

Add support for reading and writing double arrays in
Parcel.readValue() and Parcel.writeValue.

Also, remove some trailing whitespaces in Parcel.java.

BUG: 25848659
Change-Id: Ib5430f492df4195051b83d9bf2b5163ec684bbff

1 files changed, 29 insertions, 22 deletions

diff --git a/core/java/android/os/Parcel.java b/core/java/android/os/Parcel.java
index 1e879f2edca1..ed53d4495a15 100644
--- a/core/java/android/os/Parcel.java
+++ b/core/java/android/os/Parcel.java
@@ -58,12 +58,12 @@ import java.util.Set;
  * appropriate to place any Parcel data in to persistent storage: changes
  * in the underlying implementation of any of the data in the Parcel can
  * render older data unreadable.</p>
- * 
+ *
  * <p>The bulk of the Parcel API revolves around reading and writing data
  * of various types.  There are six major classes of such functions available.</p>
- * 
+ *
  * <h3>Primitives</h3>
- * 
+ *
  * <p>The most basic data functions are for writing and reading primitive
  * data types: {@link #writeByte}, {@link #readByte}, {@link #writeDouble},
  * {@link #readDouble}, {@link #writeFloat}, {@link #readFloat}, {@link #writeInt},
@@ -71,15 +71,15 @@ import java.util.Set;
  * {@link #writeString}, {@link #readString}.  Most other
  * data operations are built on top of these.  The given data is written and
  * read using the endianess of the host CPU.</p>
- * 
+ *
  * <h3>Primitive Arrays</h3>
- * 
+ *
  * <p>There are a variety of methods for reading and writing raw arrays
  * of primitive objects, which generally result in writing a 4-byte length
  * followed by the primitive data items.  The methods for reading can either
  * read the data into an existing array, or create and return a new array.
  * These available types are:</p>
- * 
+ *
  * <ul>
  * <li> {@link #writeBooleanArray(boolean[])},
  * {@link #readBooleanArray(boolean[])}, {@link #createBooleanArray()}
@@ -101,9 +101,9 @@ import java.util.Set;
  * <li> {@link #writeSparseBooleanArray(SparseBooleanArray)},
  * {@link #readSparseBooleanArray()}.
  * </ul>
- * 
+ *
  * <h3>Parcelables</h3>
- * 
+ *
  * <p>The {@link Parcelable} protocol provides an extremely efficient (but
  * low-level) protocol for objects to write and read themselves from Parcels.
  * You can use the direct methods {@link #writeParcelable(Parcelable, int)}
@@ -113,7 +113,7 @@ import java.util.Set;
  * methods write both the class type and its data to the Parcel, allowing
  * that class to be reconstructed from the appropriate class loader when
  * later reading.</p>
- * 
+ *
  * <p>There are also some methods that provide a more efficient way to work
  * with Parcelables: {@link #writeTypedObject}, {@link #writeTypedArray},
  * {@link #writeTypedList}, {@link #readTypedObject},
@@ -126,9 +126,9 @@ import java.util.Set;
  * call {@link Parcelable#writeToParcel Parcelable.writeToParcel} and
  * {@link Parcelable.Creator#createFromParcel Parcelable.Creator.createFromParcel}
  * yourself.)</p>
- * 
+ *
  * <h3>Bundles</h3>
- * 
+ *
  * <p>A special type-safe container, called {@link Bundle}, is available
  * for key/value maps of heterogeneous values.  This has many optimizations
  * for improved performance when reading and writing data, and its type-safe
@@ -136,16 +136,16 @@ import java.util.Set;
  * data contents into a Parcel.  The methods to use are
  * {@link #writeBundle(Bundle)}, {@link #readBundle()}, and
  * {@link #readBundle(ClassLoader)}.
- * 
+ *
  * <h3>Active Objects</h3>
- * 
+ *
  * <p>An unusual feature of Parcel is the ability to read and write active
  * objects.  For these objects the actual contents of the object is not
  * written, rather a special token referencing the object is written.  When
  * reading the object back from the Parcel, you do not get a new instance of
  * the object, but rather a handle that operates on the exact same object that
  * was originally written.  There are two forms of active objects available.</p>
- * 
+ *
  * <p>{@link Binder} objects are a core facility of Android's general cross-process
  * communication system.  The {@link IBinder} interface describes an abstract
  * protocol with a Binder object.  Any such interface can be written in to
@@ -158,7 +158,7 @@ import java.util.Set;
  * {@link #createBinderArray()},
  * {@link #writeBinderList(List)}, {@link #readBinderList(List)},
  * {@link #createBinderArrayList()}.</p>
- * 
+ *
  * <p>FileDescriptor objects, representing raw Linux file descriptor identifiers,
  * can be written and {@link ParcelFileDescriptor} objects returned to operate
  * on the original file descriptor.  The returned file descriptor is a dup
@@ -166,9 +166,9 @@ import java.util.Set;
  * operating on the same underlying file stream, with the same position, etc.
  * The methods to use are {@link #writeFileDescriptor(FileDescriptor)},
  * {@link #readFileDescriptor()}.
- * 
+ *
  * <h3>Untyped Containers</h3>
- * 
+ *
  * <p>A final class of methods are for writing and reading standard Java
  * containers of arbitrary types.  These all revolve around the
  * {@link #writeValue(Object)} and {@link #readValue(ClassLoader)} methods
@@ -229,6 +229,7 @@ public final class Parcel {
     private static final int VAL_PERSISTABLEBUNDLE = 25;
     private static final int VAL_SIZE = 26;
     private static final int VAL_SIZEF = 27;
+    private static final int VAL_DOUBLEARRAY = 28;
 
     // The initial int32 in a Binder call's reply Parcel header:
     private static final int EX_SECURITY = -1;
@@ -642,7 +643,7 @@ public final class Parcel {
      * growing dataCapacity() if needed.  The Map keys must be String objects.
      * The Map values are written using {@link #writeValue} and must follow
      * the specification there.
-     * 
+     *
      * <p>It is strongly recommended to use {@link #writeBundle} instead of
      * this method, since the Bundle class provides a type-safe API that
      * allows you to avoid mysterious type errors at the point of marshalling.
@@ -1408,6 +1409,9 @@ public final class Parcel {
         } else if (v instanceof SizeF) {
             writeInt(VAL_SIZEF);
             writeSizeF((SizeF) v);
+        } else if (v instanceof double[]) {
+            writeInt(VAL_DOUBLEARRAY);
+            writeDoubleArray((double[]) v);
         } else {
             Class<?> clazz = v.getClass();
             if (clazz.isArray() && clazz.getComponentType() == Object.class) {
@@ -1483,7 +1487,7 @@ public final class Parcel {
      * exception will be re-thrown by this function as a RuntimeException
      * (to be caught by the system's last-resort exception handling when
      * dispatching a transaction).
-     * 
+     *
      * <p>The supported exception types are:
      * <ul>
      * <li>{@link BadParcelableException}
@@ -1493,7 +1497,7 @@ public final class Parcel {
      * <li>{@link SecurityException}
      * <li>{@link NetworkOnMainThreadException}
      * </ul>
-     * 
+     *
      * @param e The Exception to be written.
      *
      * @see #writeNoException
@@ -1814,7 +1818,7 @@ public final class Parcel {
             if (Bundle.DEBUG) Log.d(TAG, "null bundle: length=" + length);
             return null;
         }
-        
+
         final Bundle bundle = new Bundle(this, length);
         if (loader != null) {
             bundle.setClassLoader(loader);
@@ -2325,7 +2329,7 @@ public final class Parcel {
             return readArrayList(loader);
 
         case VAL_BOOLEANARRAY:
-            return createBooleanArray();        
+            return createBooleanArray();
 
         case VAL_BYTEARRAY:
             return createByteArray();
@@ -2375,6 +2379,9 @@ public final class Parcel {
         case VAL_SIZEF:
             return readSizeF();
 
+        case VAL_DOUBLEARRAY:
+            return createDoubleArray();
+
         default:
             int off = dataPosition() - 4;
             throw new RuntimeException(