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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.module;

import com.oracle.truffle.api.frame.VirtualFrame;
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.access.JSWriteFrameSlotNode;
import com.oracle.truffle.js.nodes.control.StatementNode;
import com.oracle.truffle.js.runtime.Evaluator;
import com.oracle.truffle.js.runtime.JSContext;
import com.oracle.truffle.js.runtime.objects.JSModuleRecord;

import java.util.Set;

Resolves a star import: gets the imported module's namespace object and initializes the local
binding (frame slot) with it.
/**
 * Resolves a star import: gets the imported module's namespace object and initializes the local
 * binding (frame slot) with it.
 */
public class ResolveStarImportNode extends StatementNode {

    private final JSContext context;
    private final String moduleRequest;
    @Child private JavaScriptNode moduleNode;
    @Child private JSWriteFrameSlotNode writeLocalNode;

    ResolveStarImportNode(JSContext context, JavaScriptNode moduleNode, String moduleRequest, JSWriteFrameSlotNode writeLocalNode) {
        this.context = context;
        this.moduleRequest = moduleRequest;
        this.moduleNode = moduleNode;
        this.writeLocalNode = writeLocalNode;
    }

    public static StatementNode create(JSContext context, JavaScriptNode moduleNode, String moduleRequest, JSWriteFrameSlotNode writeLocalNode) {
        return new ResolveStarImportNode(context, moduleNode, moduleRequest, writeLocalNode);
    }

    @Override
    public Object execute(VirtualFrame frame) {
        JSModuleRecord referencingScriptOrModule = (JSModuleRecord) moduleNode.execute(frame);
        Evaluator evaluator = context.getEvaluator();
        JSModuleRecord importedModule = evaluator.hostResolveImportedModule(context, referencingScriptOrModule, moduleRequest);
        // Let namespace be GetModuleNamespace(importedModule)
        DynamicObject namespace = evaluator.getModuleNamespace(importedModule);
        // envRec.CreateImmutableBinding(in.[[LocalName]], true).
        // Call envRec.InitializeBinding(in.[[LocalName]], namespace).
        writeLocalNode.executeWrite(frame, namespace);
        return EMPTY;
    }

    @Override
    protected JavaScriptNode copyUninitialized(Set<Class<? extends Tag>> materializedTags) {
        return create(context, cloneUninitialized(moduleNode, materializedTags), moduleRequest, cloneUninitialized(writeLocalNode, materializedTags));
    }

}