com.googlecode.dex2jar.ir.StmtTraveler Maven / Gradle / Ivy
package com.googlecode.dex2jar.ir;
import com.googlecode.dex2jar.ir.expr.Value;
import com.googlecode.dex2jar.ir.stmt.Stmt;
import com.googlecode.dex2jar.ir.stmt.StmtList;
import java.util.Iterator;
public class StmtTraveler {
public void travel(IrMethod method) {
travel(method.stmts);
}
public void travel(StmtList stmts) {
for (Iterator it = stmts.iterator(); it.hasNext(); ) {
Stmt stmt = it.next();
Stmt n = travel(stmt);
if (n != stmt) {
stmts.insertBefore(stmt, n);
it.remove();
}
}
}
public Stmt travel(Stmt stmt) {
switch (stmt.et) {
case E0:
break;
case E1:
stmt.setOp(travel(stmt.getOp()));
break;
case E2:
stmt.setOp1(travel(stmt.getOp1()));
stmt.setOp2(travel(stmt.getOp2()));
break;
case En:
Value[] ops = stmt.getOps();
for (int i = 0; i < ops.length; i++) {
ops[i] = travel(ops[i]);
}
break;
}
return stmt;
}
public Value travel(Value op) {
switch (op.et) {
case E0:
break;
case E1:
op.setOp(travel(op.getOp()));
break;
case E2:
op.setOp1(travel(op.getOp1()));
op.setOp2(travel(op.getOp2()));
break;
case En:
Value[] ops = op.getOps();
for (int i = 0; i < ops.length; i++) {
ops[i] = travel(ops[i]);
}
break;
}
return op;
}
}