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35 lines
974 B
Java
35 lines
974 B
Java
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class BitwiseNode extends BinaryNode {
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BitwiseNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
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{
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super(aOp, aLeft, aRight);
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}
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void eval(Environment theEnv)
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{
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super.eval(theEnv);
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int iR = (int)(theEnv.theStack.pop().d);
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int iL = (int)(theEnv.theStack.pop().d);
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if (op == "&")
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theEnv.theStack.push(new StackValue(iL & iR));
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else
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if (op == "|")
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theEnv.theStack.push(new StackValue(iL | iR));
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else
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if (op == "^")
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theEnv.theStack.push(new StackValue(iL ^ iR));
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else
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if (op == "<<")
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theEnv.theStack.push(new StackValue(iL << iR));
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else
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if (op == ">>")
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theEnv.theStack.push(new StackValue(iL >> iR));
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else
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if (op == ">>>")
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theEnv.theStack.push(new StackValue(iL >>> iR));
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else
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System.out.println("missing bitwise op " + op);
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}
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}
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