| /* |
| * 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 + ">"; |
| } |
| } |
| |