import clojure.lang.IMapEntry; //导入依赖的package包/类
public IMapEntry entryAt(Object key) {
    int hash = Util.hasheq(key);
    int h = hash;
    int hops = 7;
    Node node = root;
    loop: for (;;) {
        int shift = (h & 31)*2;
        long lead = node.bitmap >>> shift;
        int pos = Long.bitCount(lead);
        int bits = (int) (lead & 3L);
        switch (bits) {
        case 0:
            return null;
        case 3:
            Object k = node.array[pos-2];
            return Util.equiv(key, k) ? new MapEntry(k, node.array[pos-1]) : null;
        default:
            hops--;
            if (hops == 0) return Collisions.lookup(node.array[pos-1], key);
            h >>>= 5;
            node = (Node) node.array[pos-1];
            continue loop;
        }
    }
}
 

import clojure.lang.IMapEntry; //导入依赖的package包/类
void lookup(IPersistentMap pm) {
    boolean allFound = true;
    for (int iter = 0; iter < inserts.length; iter += 2) {
        Object k        = inserts[iter + 0];
        Object v        = inserts[iter + 1];
        IMapEntry me    = pm.entryAt(k);
        allFound        &= me != null;
    }
    if (!allFound) {
        throw new RuntimeException("Expected all to be found");
    }
}
 

import clojure.lang.IMapEntry; //导入依赖的package包/类
@Override
public IMapEntry entryAt(Object k) {
	if (k instanceof Keyword)
		return entryAt(((Keyword) k).getName());

	return getMap().entryAt(k);
}
 

import clojure.lang.IMapEntry; //导入依赖的package包/类
@Override
public IMapEntry entryAt(Object key) {
    throw new UnsupportedOperationException("TODO");
}
 

import clojure.lang.IMapEntry; //导入依赖的package包/类
static IMapEntry lookup(Object collisions_, Object key) {
    Collisions collisions = (Collisions) collisions_;
    int i = indexOf(collisions, key);
    if (i < 0) return null;
    return new MapEntry(collisions.array[i], collisions.array[i+1]);
}
 

import clojure.lang.IMapEntry; //导入依赖的package包/类
public IMapEntry entryAt(Object k) {
	if (k instanceof Keyword)
		return entryAt(((Keyword) k).getName());

	return getMap().entryAt(k);
}
 

import clojure.lang.IMapEntry; //导入依赖的package包/类
public IMapEntry entryAt(Object k) {
    if (k instanceof Keyword)
        return entryAt(((Keyword) k).getName());

    return getMap().entryAt(k);
}
 

import clojure.lang.IMapEntry; //导入依赖的package包/类
@Override
public IMapEntry entryAt(Object key) {
    return ((Associative) map).entryAt(key);
}
 

import clojure.lang.IMapEntry; //导入依赖的package包/类
public IMapEntry entryAt(Object k) {
    if(k instanceof Keyword) return entryAt(((Keyword) k).getName());

    return getMap().entryAt(k);
}