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package com.redhat.ceylon.compiler.java.wrapping;

import com.redhat.ceylon.compiler.java.runtime.model.TypeDescriptor;

import ceylon.language.Entry;
import ceylon.language.Iterator;
import ceylon.language.impl.BaseMap;

/**
 * A wrapper for a Java List that satisfies {@code ceylon.language.List}.
 */
class WrappedJavaMap extends BaseMap {

    private static final long serialVersionUID = 1L;
    private final java.util.Map jMap;
    private final TypeDescriptor $reified$Key;
    private final TypeDescriptor $reified$Item;
    private Wrapping keyWrapping;
    private Wrapping itemWrapping;

    public WrappedJavaMap(TypeDescriptor $reified$Key, TypeDescriptor $reified$Item, 
            java.util.Map jMap,
            Wrapping keyWrapping,
            Wrapping itemWrapping) {
        super($reified$Key, $reified$Item);
        this.$reified$Key = $reified$Key;
        this.$reified$Item = $reified$Item;
        this.jMap = jMap;
        this.keyWrapping = keyWrapping;
        this.itemWrapping = itemWrapping;
    }

    @Override
    public boolean defines(Object key) {
        return jMap.containsKey(key);
    }

    @Override
    public CeylonItem get(Object key) {
        return itemWrapping.wrap(jMap.get(keyWrapping.inverted().wrap((CeylonKey)key)));
    }

    @Override
    public Iterator> iterator() {
        return new WrappedJavaIterator(null, jMap.entrySet(), 
                Wrappings.toCeylonEntry($reified$Key, $reified$Item, keyWrapping, itemWrapping));
    }
    
    public java.util.Map unwrap() {
        return jMap;
    }

}