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// Copyright 2018 The Bazel Authors. All rights reserved.
//
// 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.
package com.google.devtools.build.android.desugar;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.ImmutableList;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
@RunWith(JUnit4.class)
public class CorePackageRenamerTest {
@Test
public void testSymbolRewrite() throws Exception {
MockClassVisitor out = new MockClassVisitor();
CorePackageRenamer renamer = new CorePackageRenamer(
out,
new CoreLibrarySupport(
new CoreLibraryRewriter(""), null, ImmutableList.of("java/time/"), ImmutableList.of()));
MethodVisitor mv = renamer.visitMethod(0, "test", "()V", null, null);
mv.visitMethodInsn(
Opcodes.INVOKESTATIC, "java/time/Instant", "now", "()Ljava/time/Instant;", false);
assertThat(out.mv.owner).isEqualTo("j$/time/Instant");
assertThat(out.mv.desc).isEqualTo("()Lj$/time/Instant;");
mv.visitMethodInsn(
Opcodes.INVOKESTATIC, "other/time/Instant", "now", "()Ljava/time/Instant;", false);
assertThat(out.mv.owner).isEqualTo("other/time/Instant");
assertThat(out.mv.desc).isEqualTo("()Lj$/time/Instant;");
mv.visitFieldInsn(
Opcodes.GETFIELD, "other/time/Instant", "now", "Ljava/time/Instant;");
assertThat(out.mv.owner).isEqualTo("other/time/Instant");
assertThat(out.mv.desc).isEqualTo("Lj$/time/Instant;");
}
private static class MockClassVisitor extends ClassVisitor {
final MockMethodVisitor mv = new MockMethodVisitor();
public MockClassVisitor() {
super(Opcodes.ASM6);
}
@Override
public MethodVisitor visitMethod(
int access, String name, String desc, String signature, String[] exceptions) {
return mv;
}
}
private static class MockMethodVisitor extends MethodVisitor {
String owner;
String desc;
public MockMethodVisitor() {
super(Opcodes.ASM6);
}
@Override
public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
this.owner = owner;
this.desc = desc;
}
@Override
public void visitFieldInsn(int opcode, String owner, String name, String desc) {
this.owner = owner;
this.desc = desc;
}
}
}
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