74 lines
1.8 KiB
Java
74 lines
1.8 KiB
Java
class JSInteger extends JSNumber {
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JSInteger(String s)
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{
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i = new Integer(s).intValue();
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}
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JSInteger(int p)
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{
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i = p;
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}
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void eval(Environment theEnv)
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{
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theEnv.theStack.push(this);
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}
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JSBoolean toJSBoolean(Environment theEnv) {
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return (i != 0) ? JSBoolean.JSTrue : JSBoolean.JSFalse;
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}
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JSDouble toJSDouble(Environment theEnv) {
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return new JSDouble(i);
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}
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JSInteger toJSInteger(Environment theEnv) {
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return this;
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}
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JSValue toPrimitive(Environment theEnv, String hint) {
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return this;
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}
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JSString toJSString(Environment theEnv) {
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return new JSString(Integer.toString(i));
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}
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void twiddle(Environment theEnv) {
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theEnv.theStack.push(new JSInteger(~i));
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}
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void and(Environment theEnv) {
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JSValue vR = theEnv.theStack.pop();
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theEnv.theStack.push(new JSInteger(i & vR.toJSInteger(theEnv).i));
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}
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void or(Environment theEnv) {
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JSValue vR = theEnv.theStack.pop();
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theEnv.theStack.push(new JSInteger(i | vR.toJSInteger(theEnv).i));
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}
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void xor(Environment theEnv) {
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JSValue vR = theEnv.theStack.pop();
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theEnv.theStack.push(new JSInteger(i ^ vR.toJSInteger(theEnv).i));
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}
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void shl(Environment theEnv) {
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JSValue vR = theEnv.theStack.pop();
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theEnv.theStack.push(new JSInteger(i >> vR.toJSInteger(theEnv).i));
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}
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void shr(Environment theEnv) {
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JSValue vR = theEnv.theStack.pop();
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theEnv.theStack.push(new JSInteger(i << vR.toJSInteger(theEnv).i));
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}
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void ushl(Environment theEnv) {
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JSValue vR = theEnv.theStack.pop();
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theEnv.theStack.push(new JSInteger(i >>> vR.toJSInteger(theEnv).i));
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}
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int i;
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} |