source: stable/HeuristicLab.ExtLibs/HeuristicLab.NRefactory/5.5.0/NRefactory-5.5.0/TypeSystem/Implementation/MinimalCorlib.cs

// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
// 
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// software and associated documentation files (the "Software"), to deal in the Software
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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using System;

namespace ICSharpCode.NRefactory.TypeSystem.Implementation
{
  /// <summary>
  /// Resolve context represents the minimal mscorlib required for evaluating constants.
  /// This contains all known types (<see cref="KnownTypeCode"/>) and no other types.
  /// </summary>
  public sealed class MinimalCorlib : DefaultUnresolvedAssembly
  {
    static readonly Lazy<MinimalCorlib> instance = new Lazy<MinimalCorlib>(() => new MinimalCorlib());
    
    public static MinimalCorlib Instance {
      get { return instance.Value; }
    }
    
    public ICompilation CreateCompilation()
    {
      return new SimpleCompilation(new DefaultSolutionSnapshot(), this);
    }
    
    private MinimalCorlib() : base("corlib")
    {
      var types = new DefaultUnresolvedTypeDefinition[KnownTypeReference.KnownTypeCodeCount];
      for (int i = 0; i < types.Length; i++) {
        var typeRef = KnownTypeReference.Get((KnownTypeCode)i);
        if (typeRef != null) {
          types[i] = new DefaultUnresolvedTypeDefinition(typeRef.Namespace, typeRef.Name);
          for (int j = 0; j < typeRef.TypeParameterCount; j++) {
            types[i].TypeParameters.Add(new DefaultUnresolvedTypeParameter(SymbolKind.TypeDefinition, j));
          }
          AddTypeDefinition(types[i]);
        }
      }
      for (int i = 0; i < types.Length; i++) {
        var typeRef = KnownTypeReference.Get((KnownTypeCode)i);
        if (typeRef != null && typeRef.baseType != KnownTypeCode.None) {
          types[i].BaseTypes.Add(types[(int)typeRef.baseType]);
          if (typeRef.baseType == KnownTypeCode.ValueType && i != (int)KnownTypeCode.Enum) {
            types[i].Kind = TypeKind.Struct;
          }
        }
      }
      Freeze();
    }
  }
}