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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.access;

import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.Cached.Shared;
import com.oracle.truffle.api.dsl.Executed;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.frame.FrameSlot;
import com.oracle.truffle.api.instrumentation.StandardTags;
import com.oracle.truffle.api.instrumentation.Tag;
import com.oracle.truffle.api.object.DynamicObject;
import com.oracle.truffle.api.profiles.ConditionProfile;
import com.oracle.truffle.js.nodes.JavaScriptNode;
import com.oracle.truffle.js.nodes.ReadNode;
import com.oracle.truffle.js.nodes.RepeatableNode;
import com.oracle.truffle.js.nodes.instrumentation.JSTags;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.ReadVariableTag;
import com.oracle.truffle.js.nodes.instrumentation.NodeObjectDescriptor;
import com.oracle.truffle.js.runtime.builtins.JSArgumentsArray;
import com.oracle.truffle.js.runtime.objects.Undefined;

import java.util.Set;

public abstract class JSGuardDisconnectedArgumentRead extends JavaScriptNode implements RepeatableNode, ReadNode {
    private final int index;
    @Child @Executed JavaScriptNode argumentsArrayNode;
    @Child private ReadElementNode readElementNode;

    private final FrameSlot slot;

    JSGuardDisconnectedArgumentRead(int index, ReadElementNode readElementNode, JavaScriptNode argumentsArray, FrameSlot slot) {
        this.index = index;
        this.argumentsArrayNode = argumentsArray;
        this.readElementNode = readElementNode;
        this.slot = slot;
    }

    public static JSGuardDisconnectedArgumentRead create(int index, ReadElementNode readElementNode, JavaScriptNode argumentsArray, FrameSlot slot) {
        return JSGuardDisconnectedArgumentReadNodeGen.create(index, readElementNode, argumentsArray, slot);
    }

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

    @Override
    public Object getNodeObject() {
        NodeObjectDescriptor descriptor = JSTags.createNodeObjectDescriptor("name", slot.getIdentifier());
        descriptor.addProperty(StandardTags.ReadVariableTag.NAME, slot.getIdentifier());
        return descriptor;
    }

    @Specialization(guards = "!isArgumentsDisconnected(argumentsArray)")
    public Object doObject(DynamicObject argumentsArray,
                    @Cached("createBinaryProfile()") @Shared("unconnected") ConditionProfile unconnected) {
        assert JSArgumentsArray.isJSArgumentsObject(argumentsArray);
        if (unconnected.profile(index >= JSArgumentsArray.getConnectedArgumentCount(argumentsArray))) {
            return Undefined.instance;
        } else {
            return readElementNode.executeWithTargetAndIndex(argumentsArray, index);
        }
    }

    public final int getIndex() {
        return index;
    }

    @Specialization(guards = "isArgumentsDisconnected(argumentsArray)")
    public Object doObjectDisconnected(DynamicObject argumentsArray,
                    @Cached("createBinaryProfile()") ConditionProfile wasDisconnected,
                    @Cached("createBinaryProfile()") @Shared("unconnected") ConditionProfile unconnected) {
        assert JSArgumentsArray.isJSArgumentsObject(argumentsArray);
        if (wasDisconnected.profile(JSArgumentsArray.wasIndexDisconnected(argumentsArray, index))) {
            return JSArgumentsArray.getDisconnectedIndexValue(argumentsArray, index);
        } else if (unconnected.profile(index >= JSArgumentsArray.getConnectedArgumentCount(argumentsArray))) {
            return Undefined.instance;
        } else {
            return readElementNode.executeWithTargetAndIndex(argumentsArray, index);
        }
    }

    @Override
    protected JavaScriptNode copyUninitialized(Set<Class<? extends Tag>> materializedTags) {
        return JSGuardDisconnectedArgumentReadNodeGen.create(index, cloneUninitialized(readElementNode, materializedTags), cloneUninitialized(argumentsArrayNode, materializedTags), slot);
    }
}