Examples of java.lang.invoke.CallSite.type()

java.lang.invoke.CallSite.type()
Returns the type of this call site's target. Although targets may change, any call site's type is permanent, and can never change to an unequal type. The {@code setTarget} method enforces this invariant by refusing any new target that doesnot have the previous target's type. @return the type of the current target, which is also the type of any future target

  }


  @Test
  public void check_bootstrap() throws Throwable {
    CallSite callSite = ClosureReferenceSupport.bootstrap(lookup(), "to_list", methodType(MethodHandle.class), KLASS, 2, 0);
    assertThat(callSite.type(), is(methodType(MethodHandle.class)));


    Object result = callSite.dynamicInvoker().invoke();
    assertThat(result, instanceOf(MethodHandle.class));


    MethodHandle handle = (MethodHandle) result;

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  }


  @Test
  public void check_bootstrap_varargs() throws Throwable {
    CallSite callSite = ClosureReferenceSupport.bootstrap(lookup(), "concat", methodType(MethodHandle.class), KLASS, 0, 1);
    assertThat(callSite.type(), is(methodType(MethodHandle.class)));


    Object result = callSite.dynamicInvoker().invoke();
    assertThat(result, instanceOf(MethodHandle.class));


    MethodHandle handle = (MethodHandle) result;

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