src/jdk/nashorn/internal/runtime/linker/NashornGuards.java

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*** 29,38 **** --- 29,39 ---- import java.lang.invoke.MethodHandle; import java.lang.invoke.MethodHandles; import java.lang.ref.WeakReference; import jdk.internal.dynalink.CallSiteDescriptor; + import jdk.nashorn.api.scripting.JSObject; import jdk.nashorn.internal.codegen.ObjectClassGenerator; import jdk.nashorn.internal.objects.Global; import jdk.nashorn.internal.runtime.Property; import jdk.nashorn.internal.runtime.PropertyMap; import jdk.nashorn.internal.runtime.ScriptFunction;
*** 41,50 **** --- 42,52 ---- /** * Constructor of method handles used to guard call sites. */ public final class NashornGuards { private static final MethodHandle IS_SCRIPTOBJECT = findOwnMH("isScriptObject", boolean.class, Object.class); + private static final MethodHandle IS_NOT_JSOBJECT = findOwnMH("isNotJSObject", boolean.class, Object.class); private static final MethodHandle IS_SCRIPTFUNCTION = findOwnMH("isScriptFunction", boolean.class, Object.class); private static final MethodHandle IS_MAP = findOwnMH("isMap", boolean.class, Object.class, PropertyMap.class); private static final MethodHandle SAME_OBJECT = findOwnMH("sameObject", boolean.class, Object.class, WeakReference.class); private static final MethodHandle IS_INSTANCEOF_2 = findOwnMH("isInstanceOf2", boolean.class, Object.class, Class.class, Class.class);
*** 59,68 **** --- 61,78 ---- public static MethodHandle getScriptObjectGuard() { return IS_SCRIPTOBJECT; } /** + * Get the guard that checks if an item is not a {@code JSObject} + * @return method handle for guard + */ + public static MethodHandle getNotJSObjectGuard() { + return IS_NOT_JSOBJECT; + } + + /** * Get the guard that checks if an item is a {@code ScriptFunction} * @return method handle for guard */ public static MethodHandle getScriptFunctionGuard() { return IS_SCRIPTFUNCTION;
*** 155,164 **** --- 165,179 ---- private static boolean isScriptObject(final Object self) { return self instanceof ScriptObject; } @SuppressWarnings("unused") + private static boolean isNotJSObject(final Object self) { + return !(self instanceof JSObject); + } + + @SuppressWarnings("unused") private static boolean isScriptFunction(final Object self) { return self instanceof ScriptFunction; } @SuppressWarnings("unused")