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/*
* Copyright (C) 2012 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.
*/
package com.android.jack.cast;
import com.android.jack.TestTools;
import com.android.jack.backend.dex.DexFileWriter;
import com.android.jack.test.toolchain.AbstractTestTools;
import com.android.jack.test.toolchain.IToolchain;
import junit.framework.Assert;
import org.jf.dexlib.CodeItem;
import org.jf.dexlib.DexFile;
import org.jf.dexlib.Code.Instruction;
import org.jf.dexlib.Code.Opcode;
import org.junit.Test;
import java.io.File;
import javax.annotation.Nonnull;
public class UselessCastRemoverTest {
@Nonnull
private static final String CAST = "com/android/jack/transformations/cast/jack/Data";
@Nonnull
private static final String CAST_USELESS002 = "com/android/jack/cast/useless002/jack/UselessCast";
@Nonnull
private static final String CAST_USELESS003 = "com/android/jack/cast/useless003/jack/UselessCast";
@Test
public void test001() throws Exception {
compileAndCheckUselessCast("com.android.jack.cast.test001",
"Lcom/android/jack/cast/test001/jack/Test001;", "get",
"(Lcom/android/jack/cast/test001/jack/Test001;)I");
}
@Test
public void test002() throws Exception {
compileAndCheckUselessCast("com.android.jack.cast.test002",
"Lcom/android/jack/cast/test002/jack/Test002;", "get",
"(Lcom/android/jack/cast/test002/jack/Test002;)I");
}
@Test
public void test003() throws Exception {
compileAndCheckUselessCast("com.android.jack.cast.test003",
"Lcom/android/jack/cast/test003/jack/Test003;", "get",
"(Lcom/android/jack/cast/test003/jack/A;)I");
}
private void compileAndCheckUselessCast(@Nonnull String testPackage, @Nonnull String typeSig,
@Nonnull String methodName, @Nonnull String methSig) throws Exception {
File testFolder = AbstractTestTools.getTestRootDir(testPackage);
File outFolder = AbstractTestTools.createTempDir();
File out = new File(outFolder, DexFileWriter.DEX_FILENAME);
IToolchain toolchain = AbstractTestTools.getCandidateToolchain();
toolchain.addToClasspath(toolchain.getDefaultBootClasspath())
.srcToExe(outFolder,
/* zipFile = */false, testFolder);
DexFile dexFile = new DexFile(out);
CodeItem ci = TestTools.getEncodedMethod(dexFile, typeSig, methodName, methSig).codeItem;
Assert.assertFalse(hasOpcode(ci, Opcode.CHECK_CAST));
Assert.assertFalse(hasOpcode(ci, Opcode.CHECK_CAST_JUMBO));
}
private boolean hasOpcode(@Nonnull CodeItem codeItem, @Nonnull Opcode opcode) {
for (Instruction inst : codeItem.getInstructions()) {
if (inst.opcode == opcode) {
return true;
}
}
return false;
}
}
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