44 import jdk.nashorn.internal.codegen.RuntimeCallSite;
45 import jdk.nashorn.internal.runtime.JSType;
46 import jdk.nashorn.internal.runtime.ScriptFunction;
47 import jdk.nashorn.internal.runtime.ScriptRuntime;
48 import jdk.nashorn.internal.runtime.options.Options;
49
50 /**
51 * This class houses bootstrap method for invokedynamic instructions generated by compiler.
52 */
53 public final class Bootstrap {
54 /** Reference to the seed boostrap function */
55 public static final Call BOOTSTRAP = staticCallNoLookup(Bootstrap.class, "bootstrap", CallSite.class, Lookup.class, String.class, MethodType.class, int.class);
56
57 // do not create me!!
58 private Bootstrap() {
59 }
60
61 private static final DynamicLinker dynamicLinker;
62 static {
63 final DynamicLinkerFactory factory = new DynamicLinkerFactory();
64 factory.setPrioritizedLinkers(new NashornLinker(), new NashornPrimitiveLinker(), new NashornStaticClassLinker(),
65 new BoundDynamicMethodLinker(), new JavaSuperAdapterLinker(), new JSObjectLinker(), new ReflectionCheckLinker());
66 factory.setFallbackLinkers(new NashornBeansLinker(), new NashornBottomLinker());
67 factory.setSyncOnRelink(true);
68 final int relinkThreshold = Options.getIntProperty("nashorn.unstable.relink.threshold", -1);
69 if (relinkThreshold > -1) {
70 factory.setUnstableRelinkThreshold(relinkThreshold);
71 }
72
73 // Linkers for any additional language runtimes deployed alongside Nashorn will be picked up by the factory.
74 factory.setClassLoader(Bootstrap.class.getClassLoader());
75
76 dynamicLinker = factory.createLinker();
77 }
78
79 /**
80 * Returns if the given object is a "callable"
81 * @param obj object to be checked for callability
82 * @return true if the obj is callable
83 */
84 public static boolean isCallable(final Object obj) {
85 if (obj == ScriptRuntime.UNDEFINED || obj == null) {
86 return false;
|
44 import jdk.nashorn.internal.codegen.RuntimeCallSite;
45 import jdk.nashorn.internal.runtime.JSType;
46 import jdk.nashorn.internal.runtime.ScriptFunction;
47 import jdk.nashorn.internal.runtime.ScriptRuntime;
48 import jdk.nashorn.internal.runtime.options.Options;
49
50 /**
51 * This class houses bootstrap method for invokedynamic instructions generated by compiler.
52 */
53 public final class Bootstrap {
54 /** Reference to the seed boostrap function */
55 public static final Call BOOTSTRAP = staticCallNoLookup(Bootstrap.class, "bootstrap", CallSite.class, Lookup.class, String.class, MethodType.class, int.class);
56
57 // do not create me!!
58 private Bootstrap() {
59 }
60
61 private static final DynamicLinker dynamicLinker;
62 static {
63 final DynamicLinkerFactory factory = new DynamicLinkerFactory();
64 final NashornBeansLinker nashornBeansLinker = new NashornBeansLinker();
65 final JSObjectLinker jsObjectLinker = new JSObjectLinker(nashornBeansLinker);
66 factory.setPrioritizedLinkers(new NashornLinker(), new NashornPrimitiveLinker(), new NashornStaticClassLinker(),
67 new BoundDynamicMethodLinker(), new JavaSuperAdapterLinker(), jsObjectLinker, new ReflectionCheckLinker());
68 factory.setFallbackLinkers(nashornBeansLinker, new NashornBottomLinker());
69 factory.setSyncOnRelink(true);
70 final int relinkThreshold = Options.getIntProperty("nashorn.unstable.relink.threshold", -1);
71 if (relinkThreshold > -1) {
72 factory.setUnstableRelinkThreshold(relinkThreshold);
73 }
74
75 // Linkers for any additional language runtimes deployed alongside Nashorn will be picked up by the factory.
76 factory.setClassLoader(Bootstrap.class.getClassLoader());
77
78 dynamicLinker = factory.createLinker();
79 }
80
81 /**
82 * Returns if the given object is a "callable"
83 * @param obj object to be checked for callability
84 * @return true if the obj is callable
85 */
86 public static boolean isCallable(final Object obj) {
87 if (obj == ScriptRuntime.UNDEFINED || obj == null) {
88 return false;
|