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// bsn GoldParser .NET Engine
// --------------------------
//
// Copyright 2009, 2010 by Arsène von Wyss - avw@gmx.ch
//
// Development has been supported by Sirius Technologies AG, Basel
//
// Source:
//
// https://bsn-goldparser.googlecode.com/hg/
//
// License:
//
// The library is distributed under the GNU Lesser General Public License:
// http://www.gnu.org/licenses/lgpl.html
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
using System;
using System.Diagnostics;
using System.Reflection;
namespace bsn.GoldParser.Semantic {
/// <summary>
/// The factory for terminals of the semantic token type implementation.
/// </summary>
/// <typeparam name="TBase">The base type of the semantic token.</typeparam>
/// <typeparam name="TOutput">The <see cref="SemanticToken"/> descendant instantiated by this factory.</typeparam>
public class SemanticTerminalTypeFactory<TBase, TOutput>: SemanticTerminalFactory<TBase, TOutput> where TBase: SemanticToken where TOutput: TBase {
private readonly SemanticTerminalTypeFactoryHelper<TBase>.Activator<TOutput> activator;
/// <summary>
/// Initializes a new instance of the <see cref="SemanticTerminalTypeFactory<TBase, TOutput>"/> class. This is mainly for internal use.
/// </summary>
public SemanticTerminalTypeFactory() {
ConstructorInfo constructor = typeof(TOutput).GetConstructor(new[] {typeof(string)});
if (constructor == null) {
constructor = typeof(TOutput).GetConstructor(Type.EmptyTypes);
if (constructor == null) {
throw new InvalidOperationException("No matching constructor found");
}
}
activator = SemanticTerminalTypeFactoryHelper<TBase>.CreateActivator(this, constructor);
Debug.Assert(activator != null);
}
protected override TOutput Create(string text) {
return activator(text);
}
}
}
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