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 * (a) the Software, and
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 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
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package com.oracle.truffle.js.nodes.binary;

import java.util.Objects;
import java.util.Set;

import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.instrumentation.InstrumentableNode;
import com.oracle.truffle.api.instrumentation.Tag;
import com.oracle.truffle.api.nodes.NodeInfo;
import com.oracle.truffle.api.profiles.ConditionProfile;
import com.oracle.truffle.js.nodes.JavaScriptNode;
import com.oracle.truffle.js.nodes.access.JSConstantNode;
import com.oracle.truffle.js.nodes.cast.JSToInt32Node;
import com.oracle.truffle.js.nodes.cast.JSToNumericNode;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.BinaryOperationTag;
import com.oracle.truffle.js.nodes.unary.JSUnaryNode;
import com.oracle.truffle.js.runtime.BigInt;
import com.oracle.truffle.js.runtime.Errors;
import com.oracle.truffle.js.runtime.JSRuntime;
import com.oracle.truffle.js.runtime.SafeInteger;

@NodeInfo(shortName = "|")
public abstract class JSBitwiseOrConstantNode extends JSUnaryNode {

    protected final int rightIntValue;
    protected final BigInt rightBigIntValue;
    protected final boolean isInt;

    protected JSBitwiseOrConstantNode(JavaScriptNode left, Object rightValue) {
        super(left);
        if (rightValue instanceof BigInt) {
            this.isInt = false;
            this.rightBigIntValue = (BigInt) rightValue;
            this.rightIntValue = 0;
        } else {
            this.isInt = true;
            this.rightBigIntValue = null;
            this.rightIntValue = (int) rightValue;
        }
    }

    public static JavaScriptNode create(JavaScriptNode left, Object rightValue) {
        return JSBitwiseOrConstantNodeGen.create(left, rightValue);
    }

    @Override
    public boolean hasTag(Class<? extends Tag> tag) {
        if (tag == BinaryOperationTag.class) {
            return true;
        } else {
            return super.hasTag(tag);
        }
    }

    @Override
    public InstrumentableNode materializeInstrumentableNodes(Set<Class<? extends Tag>> materializedTags) {
        if (materializedTags.contains(BinaryOperationTag.class)) {
            // need to call the generated factory directly to avoid constant optimizations
            JSConstantNode constantNode = JSConstantNode.create(isInt ? rightIntValue : rightBigIntValue);
            JavaScriptNode node = JSBitwiseOrNodeGen.create(cloneUninitialized(getOperand(), materializedTags), constantNode);
            transferSourceSectionAddExpressionTag(this, constantNode);
            transferSourceSectionAndTags(this, node);
            return node;
        } else {
            return this;
        }
    }

    public abstract Object executeObject(Object a);

    @Specialization(guards = "isInt")
    protected int doInteger(int a) {
        return a | rightIntValue;
    }

    @Specialization(guards = "isInt")
    protected int doSafeInteger(SafeInteger a) {
        return doInteger(a.intValue());
    }

    @Specialization(guards = "isInt")
    protected int doDouble(double a, @Cached("create()") JSToInt32Node leftInt32) {
        return doInteger(leftInt32.executeInt(a));
    }

    @Specialization(guards = "!isInt")
    protected void doIntegerThrows(@SuppressWarnings("unused") int a) {
        throw Errors.createTypeErrorCannotMixBigIntWithOtherTypes(this);
    }

    @Specialization(guards = "!isInt")
    protected void doDoubleThrows(@SuppressWarnings("unused") double a) {
        throw Errors.createTypeErrorCannotMixBigIntWithOtherTypes(this);
    }

    @Specialization(guards = "isInt")
    protected void doBigIntThrows(@SuppressWarnings("unused") BigInt a) {
        throw Errors.createTypeErrorCannotMixBigIntWithOtherTypes(this);
    }

    @Specialization(guards = "!isInt")
    protected BigInt doBigInt(BigInt a) {
        return a.or(a);
    }

    @Specialization(replaces = {"doInteger", "doSafeInteger", "doDouble", "doBigIntThrows"}, guards = "isInt")
    protected Object doGenericIntCase(Object a,
                    @Cached("create()") JSToNumericNode toNumeric,
                    @Cached("createBinaryProfile()") ConditionProfile profileIsBigInt,
                    @Cached("makeCopy()") JavaScriptNode innerOrNode) {
        Object numericA = toNumeric.execute(a);
        if (profileIsBigInt.profile(JSRuntime.isBigInt(numericA))) {
            throw Errors.createTypeErrorCannotMixBigIntWithOtherTypes(this);
        } else {
            return ((JSBitwiseOrConstantNode) innerOrNode).executeObject(numericA);
        }
    }

    protected JSBitwiseOrConstantNode makeCopy() {
        return (JSBitwiseOrConstantNode) copyUninitialized(null);
    }

    // Workaround for SpotBugs warning in JSBitwiseOrConstantNodeGen
    protected final boolean isInt() {
        return isInt;
    }

    @Specialization(replaces = {"doIntegerThrows", "doDoubleThrows", "doBigInt"}, guards = "!isInt()")
    protected BigInt doGenericBigIntCase(Object a,
                    @Cached("create()") JSToNumericNode toNumeric,
                    @Cached("createBinaryProfile()") ConditionProfile profileIsBigInt) {
        Object numericA = toNumeric.execute(a);
        if (profileIsBigInt.profile(JSRuntime.isBigInt(numericA))) {
            return doBigInt((BigInt) numericA);
        } else {
            throw Errors.createTypeErrorCannotMixBigIntWithOtherTypes(this);
        }
    }

    @Override
    protected JavaScriptNode copyUninitialized(Set<Class<? extends Tag>> materializedTags) {
        return JSBitwiseOrConstantNodeGen.create(cloneUninitialized(getOperand(), materializedTags), isInt ? rightIntValue : rightBigIntValue);
    }

    @Override
    public String expressionToString() {
        if (getOperand() != null) {
            return "(" + Objects.toString(getOperand().expressionToString(), INTERMEDIATE_VALUE) + " | " + (isInt ? rightIntValue : rightBigIntValue) + ")";
        }
        return null;
    }
}