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package org.jf.dexlib2;
import com.google.common.collect.ImmutableMap;
import junit.framework.Assert;
import org.jf.dexlib2.iface.ClassDef;
import org.jf.dexlib2.iface.DexFile;
import org.jf.dexlib2.iface.Method;
import org.jf.dexlib2.iface.MethodImplementation;
import org.jf.dexlib2.iface.instruction.Instruction;
import org.jf.dexlib2.iface.instruction.ReferenceInstruction;
import org.jf.dexlib2.iface.reference.FieldReference;
import org.jf.dexlib2.iface.reference.MethodReference;
import org.jf.dexlib2.util.SyntheticAccessorResolver;
import org.junit.Test;
import java.io.IOException;
import java.net.URL;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class AccessorTest {
private Pattern accessorMethodPattern = Pattern.compile("([a-zA-Z]*)_([a-zA-Z]*)");
private static final Map<String, Integer> operationTypes;
static {
ImmutableMap.Builder<String, Integer> builder = ImmutableMap.builder();
builder.put("postinc", SyntheticAccessorResolver.POSTFIX_INCREMENT);
builder.put("preinc", SyntheticAccessorResolver.PREFIX_INCREMENT);
builder.put("postdec", SyntheticAccessorResolver.POSTFIX_DECREMENT);
builder.put("predec", SyntheticAccessorResolver.PREFIX_DECREMENT);
builder.put("add", SyntheticAccessorResolver.ADD_ASSIGNMENT);
builder.put("sub", SyntheticAccessorResolver.SUB_ASSIGNMENT);
builder.put("mul", SyntheticAccessorResolver.MUL_ASSIGNMENT);
builder.put("div", SyntheticAccessorResolver.DIV_ASSIGNMENT);
builder.put("rem", SyntheticAccessorResolver.REM_ASSIGNMENT);
builder.put("and", SyntheticAccessorResolver.AND_ASSIGNMENT);
builder.put("or", SyntheticAccessorResolver.OR_ASSIGNMENT);
builder.put("xor", SyntheticAccessorResolver.XOR_ASSIGNMENT);
builder.put("shl", SyntheticAccessorResolver.SHL_ASSIGNMENT);
builder.put("shr", SyntheticAccessorResolver.SHR_ASSIGNMENT);
builder.put("ushr", SyntheticAccessorResolver.USHR_ASSIGNMENT);
operationTypes = builder.build();
}
@Test
public void testAccessors() throws IOException {
URL url = AccessorTest.class.getClassLoader().getResource("accessorTest.dex");
Assert.assertNotNull(url);
DexFile f = DexFileFactory.loadDexFile(url.getFile(), 15);
SyntheticAccessorResolver sar = new SyntheticAccessorResolver(f.getClasses());
ClassDef accessorTypesClass = null;
ClassDef accessorsClass = null;
for (ClassDef classDef: f.getClasses()) {
String className = classDef.getType();
if (className.equals("Lorg/jf/dexlib2/AccessorTypes;")) {
accessorTypesClass = classDef;
} else if (className.equals("Lorg/jf/dexlib2/AccessorTypes$Accessors;")) {
accessorsClass = classDef;
}
}
Assert.assertNotNull(accessorTypesClass);
Assert.assertNotNull(accessorsClass);
for (Method method: accessorsClass.getMethods()) {
Matcher m = accessorMethodPattern.matcher(method.getName());
if (!m.matches()) {
continue;
}
String type = m.group(1);
String operation = m.group(2);
MethodImplementation methodImpl = method.getImplementation();
Assert.assertNotNull(methodImpl);
for (Instruction instruction: methodImpl.getInstructions()) {
Opcode opcode = instruction.getOpcode();
if (opcode == Opcode.INVOKE_STATIC || opcode == Opcode.INVOKE_STATIC_RANGE) {
MethodReference accessorMethod =
(MethodReference)((ReferenceInstruction) instruction).getReference();
SyntheticAccessorResolver.AccessedMember accessedMember = sar.getAccessedMember(accessorMethod);
Assert.assertNotNull(String.format("Could not resolve accessor for %s_%s", type, operation),
accessedMember);
int operationType = operationTypes.get(operation);
Assert.assertEquals(operationType, accessedMember.accessedMemberType);
Assert.assertEquals(String.format("%s_val", type),
((FieldReference)accessedMember.accessedMember).getName());
}
}
}
}
}