/*
 * Copyright (C) 2017 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */
"use strict";

class WrapChecker extends Visitor {
    constructor(node)
    {
        super();
        this._startNode = node;
    }
    
    visitVariableRef(node)
    {
    }
    
    visitTypeRef(node)
    {
    }
    
    _foundUnwrapped(node)
    {
        function originString(node)
        {
            let origin = node.origin;
            if (!origin)
                return "<null origin>";
            return origin.originString;
        }
        
        throw new Error("Found unwrapped " + node.constructor.name + " at " + originString(node) + ": " + node + "\nWhile visiting " + this._startNode.constructor.name + " at " + originString(this._startNode.origin) + ": " + this._startNode);
    }
    
    visitConstexprTypeParameter(node)
    {
        this._foundUnwrapped(node);
    }
    
    visitFuncParameter(node)
    {
        this._foundUnwrapped(node);
    }
    
    visitVariableDecl(node)
    {
        this._foundUnwrapped(node);
    }
    
    visitStructType(node)
    {
        this._foundUnwrapped(node);
    }
    
    visitNativeType(node)
    {
        this._foundUnwrapped(node);
    }
    
    visitTypeVariable(node)
    {
        this._foundUnwrapped(node);
    }
    
    // NOTE: This does not know how to handle NativeTypeInstance, because this is never called on instantiated
    // code. Once code is instantiated, you cannot instantiate it further.
    
    // NOTE: This needs to be kept in sync with AutoWrapper.
}