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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.Cached;
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.nodes.cast.JSToObjectArrayNode;
import com.oracle.truffle.js.nodes.cast.JSToObjectNode;
import com.oracle.truffle.js.runtime.JSContext;

import java.util.Set;

public abstract class RestObjectNode extends JavaScriptNode {
    @Child @Executed protected JavaScriptNode targetNode;
    @Child @Executed protected JavaScriptNode sourceNode;
    @Child private CopyDataPropertiesNode copyDataPropertiesNode;
    protected final JSContext context;

    protected RestObjectNode(JSContext context, JavaScriptNode targetNode, JavaScriptNode sourceNode) {
        this.context = context;
        this.targetNode = targetNode;
        this.sourceNode = sourceNode;
        this.copyDataPropertiesNode = CopyDataPropertiesNode.create(context);
    }

    public static JavaScriptNode create(JSContext context, JavaScriptNode targetNode, JavaScriptNode sourceNode, JavaScriptNode excludedNode) {
        if (excludedNode == null) {
            return RestObjectNodeGen.create(context, targetNode, sourceNode);
        } else {
            return RestObjectWithExcludedNodeGen.create(context, targetNode, sourceNode, excludedNode);
        }
    }

    @SuppressWarnings("unused")
    @Specialization(guards = "isNullOrUndefined(source)")
    protected static DynamicObject doNullOrUndefined(DynamicObject restObj, Object source) {
        return restObj;
    }

    @Specialization(guards = {"isJSObject(source)"})
    protected final DynamicObject copyDataProperties(DynamicObject restObj, DynamicObject source) {
        copyDataPropertiesNode.execute(restObj, source);
        return restObj;
    }

    @Specialization(guards = {"!isJSDynamicObject(source)"})
    protected final Object doOther(DynamicObject restObj, Object source,
                    @Cached("createToObjectNoCheck(context)") JSToObjectNode toObjectNode) {
        Object from = toObjectNode.execute(source);
        copyDataPropertiesNode.execute(restObj, from);
        return restObj;
    }

    @Override
    protected JavaScriptNode copyUninitialized(Set<Class<? extends Tag>> materializedTags) {
        return RestObjectNodeGen.create(context, cloneUninitialized(targetNode, materializedTags), cloneUninitialized(sourceNode, materializedTags));
    }
}

abstract class RestObjectWithExcludedNode extends JavaScriptNode {
    @Child @Executed protected JavaScriptNode targetNode;
    @Child @Executed protected JavaScriptNode sourceNode;
    @Child @Executed protected JavaScriptNode excludedNode;
    @Child private CopyDataPropertiesNode copyDataPropertiesNode;
    protected final JSContext context;

    protected RestObjectWithExcludedNode(JSContext context, JavaScriptNode targetNode, JavaScriptNode sourceNode, JavaScriptNode excludedNode) {
        this.context = context;
        this.targetNode = targetNode;
        this.sourceNode = sourceNode;
        this.excludedNode = JSToObjectArrayNode.create(context, excludedNode);
        this.copyDataPropertiesNode = CopyDataPropertiesNode.create(context);
    }

    @SuppressWarnings("unused")
    @Specialization(guards = "isNullOrUndefined(source)")
    protected static DynamicObject doNullOrUndefined(DynamicObject restObj, Object source, Object[] excludedItems) {
        return restObj;
    }

    @Specialization(guards = {"isJSObject(source)"})
    protected final DynamicObject copyDataProperties(DynamicObject restObj, DynamicObject source, Object[] excludedItems) {
        copyDataPropertiesNode.execute(restObj, source, excludedItems);
        return restObj;
    }

    @Specialization(guards = {"!isJSDynamicObject(source)"})
    protected final Object doOther(DynamicObject restObj, Object source, Object[] excludedItems,
                    @Cached("createToObjectNoCheck(context)") JSToObjectNode toObjectNode) {
        Object from = toObjectNode.execute(source);
        copyDataPropertiesNode.execute(restObj, from, excludedItems);
        return restObj;
    }

    @Override
    protected JavaScriptNode copyUninitialized(Set<Class<? extends Tag>> materializedTags) {
        return RestObjectWithExcludedNodeGen.create(context, cloneUninitialized(targetNode, materializedTags), cloneUninitialized(sourceNode, materializedTags),
                        cloneUninitialized(excludedNode, materializedTags));
    }
}