* 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 TypeRef extends Type {
constructor(origin, name, typeArguments)
{
super();
this._origin = origin;
this._name = name;
this.type = null;
this._typeArguments = typeArguments;
}
static wrap(type)
{
if (type instanceof TypeRef && !type.typeArguments)
return type;
let name = type.name;
let result = new TypeRef(type.origin, name, []);
result.type = type;
return result;
}
static instantiate(type, typeArguments)
{
let result = new TypeRef(type.origin, type.name, typeArguments);
result.type = type;
return result;
}
get origin() { return this._origin; }
get name() { return this._name; }
get typeArguments() { return this._typeArguments; }
get unifyNode()
{
if (!this.typeArguments.length)
return this.type.unifyNode;
return this;
}
populateDefaultValue(buffer, offset)
{
if (!this.typeArguments.length)
return this.type.populateDefaultValue(buffer, offset);
throw new Error("Cannot get default value of a type instantiation");
}
get size()
{
if (!this.typeArguments.length)
return this.type.size;
throw new Error("Cannot get size of a type instantiation");
}
get isPrimitive()
{
if (!this.typeArguments.length)
return this.type.isPrimitive;
throw new Error("Cannot determine if an uninstantiated type is primitive: " + this);
}
setTypeAndArguments(type, typeArguments)
{
this._name = null;
this.type = type;
this._typeArguments = typeArguments;
}
unifyImpl(unificationContext, other)
{
if (!(other instanceof TypeRef))
return false;
if (!this.type.unify(unificationContext, other.type))
return false;
if (this.typeArguments.length != other.typeArguments.length)
return false;
for (let i = 0; i < this.typeArguments.length; ++i) {
if (!this.typeArguments[i].unify(unificationContext, other.typeArguments[i]))
return false;
}
return true;
}
toString()
{
if (!this.name)
return this.type.toString();
if (!this.typeArguments.length)
return this.name;
return this.name + "<" + this.typeArguments + ">";
}
}
