content: /*
   * Copyright (C) 2017 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  import com.android.jack.annotations.CalledByInvokeCustom;
  import com.android.jack.annotations.Constant;
  import com.android.jack.annotations.LinkerMethodHandle;
  import com.android.jack.annotations.MethodHandleKind;
  
  import java.lang.invoke.CallSite;
  import java.lang.invoke.ConstantCallSite;
  import java.lang.invoke.MethodHandle;
  import java.lang.invoke.MethodHandles;
  import java.lang.invoke.MethodType;
  
  public class TestLinkerMethodMinimalArguments {
  
    private static int forceFailureType = 0;
  
    private static int FAILURE_TYPE_NONE = 0;
    private static int FAILURE_TYPE_LINKER_METHOD_RETURNS_NULL = 1;
    private static int FAILURE_TYPE_LINKER_METHOD_THROWS = 2;
    private static int FAILURE_TYPE_TARGET_METHOD_THROWS = 3;
  
    @CalledByInvokeCustom(
        invokeMethodHandle = @LinkerMethodHandle(
            kind = MethodHandleKind.INVOKE_STATIC,
            enclosingType = TestLinkerMethodMinimalArguments.class,
            argumentTypes = {MethodHandles.Lookup.class, String.class, MethodType.class},
            name = "linkerMethod"),
        name = "add",
        returnType = int.class,
        argumentTypes = {int.class, int.class})
    private static int add(int a, int b) {
      if (forceFailureType == FAILURE_TYPE_TARGET_METHOD_THROWS) {
        System.out.println("Throwing ArithmeticException in add()");
        throw new ArithmeticException("add");
      }
      return a + b;
    }
  
    @SuppressWarnings("unused")
    private static CallSite linkerMethod(MethodHandles.Lookup caller, String name,
                                         MethodType methodType) throws Throwable {
      System.out.println("linkerMethod failure type " + forceFailureType);
      MethodHandle mh_add =
          caller.findStatic(TestLinkerMethodMinimalArguments.class, name, methodType);
      if (forceFailureType == FAILURE_TYPE_LINKER_METHOD_RETURNS_NULL) {
        System.out.println("Returning null instead of CallSite for " + name + " " + methodType);
        return null;
      } else if (forceFailureType == FAILURE_TYPE_LINKER_METHOD_THROWS) {
        System.out.println("Throwing InstantiationException in linkerMethod()");
        throw new InstantiationException("linkerMethod");
      } else {
        return new ConstantCallSite(mh_add);
      }
    }
  
    public static void test(int failureType, int x, int y) throws Throwable {
      assertTrue(failureType >= FAILURE_TYPE_NONE);
      assertTrue(failureType <= FAILURE_TYPE_TARGET_METHOD_THROWS);
      forceFailureType = failureType;
      assertEquals(x + y, add(x, y));
      System.out.println("Failure Type + " + failureType + " (" + x + y+ ")");
    }
  
    public static void assertTrue(boolean value) {
      if (!value) {
        throw new AssertionError("assertTrue value: " + value);
      }
    }
  
    public static void assertEquals(byte b1, byte b2) {
      if (b1 == b2) { return; }
      throw new AssertionError("assertEquals b1: " + b1 + ", b2: " + b2);
    }
  
    public static void assertEquals(char c1, char c2) {
      if (c1 == c2) { return; }
      throw new AssertionError("assertEquals c1: " + c1 + ", c2: " + c2);
    }
  
    public static void assertEquals(short s1, short s2) {
      if (s1 == s2) { return; }
      throw new AssertionError("assertEquals s1: " + s1 + ", s2: " + s2);
    }
  
    public static void assertEquals(int i1, int i2) {
      if (i1 == i2) { return; }
      throw new AssertionError("assertEquals i1: " + i1 + ", i2: " + i2);
    }
  
    public static void assertEquals(long l1, long l2) {
      if (l1 == l2) { return; }
      throw new AssertionError("assertEquals l1: " + l1 + ", l2: " + l2);
    }
  
    public static void assertEquals(float f1, float f2) {
      if (f1 == f2) { return; }
      throw new AssertionError("assertEquals f1: " + f1 + ", f2: " + f2);
    }
  
    public static void assertEquals(double d1, double d2) {
      if (d1 == d2) { return; }
      throw new AssertionError("assertEquals d1: " + d1 + ", d2: " + d2);
    }
  
    public static void assertEquals(Object o, Object p) {
      if (o == p) { return; }
      if (o != null && p != null && o.equals(p)) { return; }
      throw new AssertionError("assertEquals: o1: " + o + ", o2: " + p);
    }
  
    public static void assertEquals(String s1, String s2) {
      if (s1 == s2) {
        return;
      }
  
      if (s1 != null && s2 != null && s1.equals(s2)) {
        return;
      }
  
      throw new AssertionError("assertEquals s1: " + s1 + ", s2: " + s2);
    }
  }
  