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package cuchaz.enigma.analysis;
import cuchaz.enigma.bytecode.AccessFlags;
import cuchaz.enigma.mapping.MethodDescriptor;
import cuchaz.enigma.mapping.Signature;
import cuchaz.enigma.mapping.entry.ClassEntry;
import cuchaz.enigma.mapping.entry.MethodDefEntry;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.Handle;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
public class IndexReferenceVisitor extends ClassVisitor {
private final JarIndex index;
private ClassEntry classEntry;
public IndexReferenceVisitor(JarIndex index, int api) {
super(api);
this.index = index;
}
@Override
public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
this.classEntry = new ClassEntry(name);
}
@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
MethodDefEntry entry = new MethodDefEntry(classEntry, name, new MethodDescriptor(desc), Signature.createSignature(signature), new AccessFlags(access));
return new Method(this.index, entry, this.api);
}
private class Method extends MethodVisitor {
private final JarIndex index;
private final MethodDefEntry callerEntry;
public Method(JarIndex index, MethodDefEntry callerEntry, int api) {
super(api);
this.index = index;
this.callerEntry = callerEntry;
}
@Override
public void visitFieldInsn(int opcode, String owner, String name, String desc) {
this.index.indexFieldAccess(callerEntry, owner, name, desc);
}
@Override
public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
this.index.indexMethodCall(callerEntry, owner, name, desc);
}
@Override
public void visitInvokeDynamicInsn(String name, String desc, Handle bsm, Object... bsmArgs) {
for (Object bsmArg : bsmArgs){
if (bsmArg instanceof Handle){
Handle handle = (Handle)bsmArg;
switch (handle.getTag()){
case Opcodes.H_GETFIELD:
case Opcodes.H_GETSTATIC:
case Opcodes.H_PUTFIELD:
case Opcodes.H_PUTSTATIC:
this.index.indexFieldAccess(callerEntry, handle.getOwner(), handle.getName(), handle.getDesc());
break;
case Opcodes.H_INVOKEINTERFACE:
case Opcodes.H_INVOKESPECIAL:
case Opcodes.H_INVOKESTATIC:
case Opcodes.H_INVOKEVIRTUAL:
case Opcodes.H_NEWINVOKESPECIAL:
this.index.indexMethodCall(callerEntry, handle.getOwner(), handle.getName(), handle.getDesc());
break;
}
}
}
}
}
}
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