List of invokeExact() Examples

Examples of invokeExact()

java.lang.invoke.MethodHandle.invokeExact()
Invokes the method handle, allowing any caller type descriptor, but requiring an exact type match. The symbolic type descriptor at the call site of {@code invokeExact} mustexactly match this method handle's {@link #type type}. No conversions are allowed on arguments or return values.
When this method is observed via the Core Reflection API, it will appear as a single native method, taking an object array and returning an object. If this native method is invoked directly via {@link java.lang.reflect.Method#invoke java.lang.reflect.Method.invoke}, via JNI, or indirectly via {@link java.lang.invoke.MethodHandles.Lookup#unreflect Lookup.unreflect}, it will throw an {@code UnsupportedOperationException}. @param args the signature-polymorphic parameter list, statically represented using varargs @return the signature-polymorphic result, statically represented using {@code Object} @throws WrongMethodTypeException if the target's type is not identical with the caller's symbolic type descriptor @throws Throwable anything thrown by the underlying method propagates unchanged through the method handle call

Examples of java.lang.invoke.MethodHandle.invokeExact()


    MethodHandle truth = loader.groovy_indy("Check", "truth", genericMethodType(0));
    assertEquals(42, (Object) truth.invokeExact());


    MethodHandle incr = loader.groovy_indy("Check", "incr", genericMethodType(1));
    assertEquals(42, (Object) incr.invokeExact((Object) 41));
  }


  @Test
  public void test_clojure_loading() throws Throwable {
    CodeLoader loader = new CodeLoader();

View Full Code Here

Examples of java.lang.invoke.MethodHandle.invokeExact()

    if (value != null || object.properties.containsKey(property)) {
      if (value instanceof MethodHandle) {
        MethodHandle handle = (MethodHandle) value;
        if (handle.type().parameterCount() == 2) {
          if (handle.isVarargsCollector() && arg instanceof Object[]) {
            return handle.invokeExact((Object) object, (Object[]) arg);
          }
          return handle.invokeWithArguments(object, arg);
        }
      }
    }

View Full Code Here

Examples of java.lang.invoke.MethodHandle.invokeExact()


  /* ................................................................................................................ */


  public static Object dispatchHashMap(HashMap<String, Object> map, String handleKey, String argKey) throws Throwable {
    MethodHandle handle = (MethodHandle) map.get(handleKey);
    return handle.invokeExact((Object) map.get(argKey));
  }


  public static Object callNextInt(Object obj) {
    return ((Random) obj).nextInt();
  }

View Full Code Here

Examples of java.lang.invoke.MethodHandle.invokeExact()

    mh2 = lookup().findStaticSetter(Integer.class, "TYPE", Class.class);
    Field fld1 = Union1.class.getDeclaredField("field1");
    Field fld2 = Union2.class.getDeclaredField("field1");
    Class classInt = int.class;
    Class classDouble = double.class;
    mh1.invokeExact(int.class);
    mh2.invokeExact((Class)null);
    Union1 u1 = new Union1();
    u1.field2 = System.class;
    Union2 u2 = new Union2();
    fld2.set(u2, fld1.get(u1));

View Full Code Here

Examples of java.lang.invoke.MethodHandle.invokeExact()

    mh2.invokeExact((Class)null);
    Union1 u1 = new Union1();
    u1.field2 = System.class;
    Union2 u2 = new Union2();
    fld2.set(u2, fld1.get(u1));
    mh1.invokeExact(classDouble);
    mh2.invokeExact(classInt);
    if (u2.field2.f29 == System.getSecurityManager()) {
      u2.field2.f29 = null;
    } else if (u2.field2.f30 == System.getSecurityManager()) {
      u2.field2.f30 = null;

View Full Code Here

Examples of java.lang.invoke.MethodHandle.invokeExact()


    public static CallSite bootstrap(MethodHandles.Lookup callerLookup, String name, MethodType type, long bindingId)
    {
        try {
            MethodHandle handle = callerLookup.findStaticGetter(callerLookup.lookupClass(), CALL_SITES_FIELD_NAME, Map.class);
            Map<Long, MethodHandle> bindings = (Map<Long, MethodHandle>) handle.invokeExact();
            checkNotNull(bindings, "'callSites' field in %s is null", callerLookup.lookupClass().getName());


            MethodHandle method = bindings.get(bindingId);
            checkArgument(method != null, "Binding %s for function %s%s not found", bindingId, name, type.parameterList());
            return new ConstantCallSite(method);

View Full Code Here

Examples of java.lang.invoke.MethodHandle.invokeExact()

        return methodHandleFactory.create(instance.getClass(), method);
      }
    };
    MethodHandle methodHandle = cache.fetch(method,newMethodHandleIfNotExists);
    try {
      return (T) methodHandle.invokeExact(instance, args);
    } catch (Throwable e) {
      Throwables.propagateIfPossible(e);
      throw new MethodExecutorException(e);
    }
  }

View Full Code Here

Examples of java.lang.invoke.MethodHandle.invokeExact()

        final Delegate delegate = outer.compileDelegate();
        final MethodHandle handle = delegate.getMethodHandle();


        System.out.printf("\n[%s]\n", handle.getClass().getSimpleName());


        final int result = (int) handle.invokeExact();


        System.out.println(result);


        assertEquals(expectedResult, result);
    }

View Full Code Here

Examples of java.lang.invoke.MethodHandle.invokeExact()

            generatedType.getErasedClass(),
            "Numbers",
            int[].class
        );


        final int[] numbers = (int[]) getter.invokeExact();


        assertArrayEquals(new int[] { 1, 2, 3, 4, 5 }, numbers);
    }


    @Test

View Full Code Here

Examples of java.lang.invoke.MethodHandle.invokeExact()

        );


        final MethodHandle handle = lambda.compileHandle();


        assertEquals(AncestorClass.class, handle.type().returnType());
        assertSame(derivedClass.createType(), Type.of(((AncestorClass)handle.invokeExact()).getClass()));
    }


    static class AncestorClass {}
    static class BaseClass extends AncestorClass {}
}

View Full Code Here

0 1 2 3 4 5

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.