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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.access;

import com.oracle.truffle.api.dsl.Executed;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.instrumentation.Tag;
import com.oracle.truffle.api.object.DynamicObject;
import com.oracle.truffle.js.nodes.JavaScriptNode;
import com.oracle.truffle.js.runtime.JSContext;
import com.oracle.truffle.js.runtime.JSRuntime;

import java.util.Set;

ES6 7.4.4 IteratorValue(iterResult).
/**
 * ES6 7.4.4 IteratorValue(iterResult).
 */
public abstract class IteratorValueNode extends JavaScriptNode {
    @Child @Executed protected JavaScriptNode iterResultNode;
    @Child private PropertyGetNode getValueNode;

    protected IteratorValueNode(JSContext context, JavaScriptNode iterResultNode) {
        this.iterResultNode = iterResultNode;
        this.getValueNode = PropertyGetNode.create(JSRuntime.VALUE, false, context);
    }

    public static IteratorValueNode create(JSContext context) {
        return create(context, null);
    }

    public static IteratorValueNode create(JSContext context, JavaScriptNode iterResult) {
        return IteratorValueNodeGen.create(context, iterResult);
    }

    @Specialization
    protected Object doIteratorNext(DynamicObject iterResult) {
        return getValueNode.getValue(iterResult);
    }

    public abstract Object execute(DynamicObject iterResult);

    @Override
    protected JavaScriptNode copyUninitialized(Set<Class<? extends Tag>> materializedTags) {
        return IteratorValueNodeGen.create(getValueNode.getContext(), cloneUninitialized(iterResultNode, materializedTags));
    }
}