Method ensureProperty

rhino/src/main/java/org/mozilla/javascript/Node.java:477–486

(int propType)

    }

    private PropListItem ensureProperty(int propType) {
        PropListItem item = lookupProperty(propType);
        if (item == null) {
            item = new PropListItem();
            item.type = propType;
            item.next = propListHead;
            propListHead = item;
        }
        return item;
    }

    public void removeProp(int propType) {
        PropListItem x = propListHead;