1 package org.robolectric.shadows; 2 3 import static android.os.Build.VERSION_CODES.LOLLIPOP; 4 5 import android.annotation.TargetApi; 6 import dalvik.system.VMRuntime; 7 import java.lang.reflect.Array; 8 import javax.annotation.Nullable; 9 import org.robolectric.annotation.Implementation; 10 import org.robolectric.annotation.Implements; 11 import org.robolectric.annotation.Resetter; 12 import org.robolectric.res.android.NativeObjRegistry; 13 14 @Implements(value = VMRuntime.class, isInAndroidSdk = false) 15 public class ShadowVMRuntime { 16 17 private final NativeObjRegistry<Object> nativeObjRegistry = 18 new NativeObjRegistry<>("VRRuntime.nativeObjectRegistry"); 19 // There actually isn't any android JNI code to call through to in Robolectric due to 20 // cross-platform compatibility issues. We default to a reasonable value that reflects the devices 21 // that would commonly run this code. 22 private static boolean is64Bit = true; 23 24 @Implementation(minSdk = LOLLIPOP) 25 public Object newUnpaddedArray(Class<?> klass, int size) { 26 return Array.newInstance(klass, size); 27 } 28 29 @Implementation 30 public Object newNonMovableArray(Class<?> type, int size) { 31 if (type.equals(int.class)) { 32 return new int[size]; 33 } 34 return null; 35 } 36 37 /** 38 * Returns a unique identifier of the object instead of a 'native' address. 39 */ 40 @Implementation 41 public long addressOf(Object obj) { 42 return nativeObjRegistry.register(obj); 43 } 44 45 /** 46 * Returns the object previously registered with {@link #addressOf(Object)}. 47 */ 48 public @Nullable 49 Object getObjectForAddress(long address) { 50 return nativeObjRegistry.getNativeObject(address); 51 } 52 53 /** 54 * Returns whether the VM is running in 64-bit mode. Available in Android L+. Defaults to true. 55 */ 56 @Implementation(minSdk = LOLLIPOP) 57 protected boolean is64Bit() { 58 return ShadowVMRuntime.is64Bit; 59 } 60 61 /** Sets whether the VM is running in 64-bit mode. */ 62 @TargetApi(LOLLIPOP) 63 public static void setIs64Bit(boolean is64Bit) { 64 ShadowVMRuntime.is64Bit = is64Bit; 65 } 66 67 @Resetter 68 public static void reset() { 69 ShadowVMRuntime.is64Bit = true; 70 } 71 } 72
