source: branches/CodeEditor/HeuristicLab.ExtLibs/HeuristicLab.NRefactory/5.5.0/NRefactory-5.5.0/TypeSystem/Implementation/DefaultVariable.cs @ 11700

// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// 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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// DEALINGS IN THE SOFTWARE.

using System;

namespace ICSharpCode.NRefactory.TypeSystem.Implementation
{
  /// <summary>
  /// Default implementation of <see cref="IVariable"/>.
  /// </summary>
  public sealed class DefaultVariable : IVariable
  {
    readonly string name;
    readonly DomRegion region;
    readonly IType type;
    readonly object constantValue;
    readonly bool isConst;
    
    public DefaultVariable(IType type, string name)
    {
      if (type == null)
        throw new ArgumentNullException("type");
      if (name == null)
        throw new ArgumentNullException("name");
      this.type = type;
      this.name = name;
    }
    
    public DefaultVariable(IType type, string name, DomRegion region = default(DomRegion),
                           bool isConst = false, object constantValue = null)
      : this(type, name)
    {
      this.region = region;
      this.isConst = isConst;
      this.constantValue = constantValue;
    }
    
    public string Name {
      get { return name; }
    }
    
    public DomRegion Region {
      get { return region; }
    }
    
    public IType Type {
      get { return type; }
    }
    
    public bool IsConst {
      get { return isConst; }
    }
    
    public object ConstantValue {
      get { return constantValue; }
    }
    
    public SymbolKind SymbolKind {
      get { return SymbolKind.Variable; }
    }

    public ISymbolReference ToReference()
    {
      return new VariableReference(type.ToTypeReference(), name, region, isConst, constantValue);
    }
  }
  
  public sealed class VariableReference : ISymbolReference
  {
    ITypeReference variableTypeReference;
    string name;
    DomRegion region;
    bool isConst;
    object constantValue;
    
    public VariableReference(ITypeReference variableTypeReference, string name, DomRegion region, bool isConst, object constantValue)
    {
      if (variableTypeReference == null)
        throw new ArgumentNullException("variableTypeReference");
      if (name == null)
        throw new ArgumentNullException("name");
      this.variableTypeReference = variableTypeReference;
      this.name = name;
      this.region = region;
      this.isConst = isConst;
      this.constantValue = constantValue;
    }
    
    public ISymbol Resolve(ITypeResolveContext context)
    {
      return new DefaultVariable(variableTypeReference.Resolve(context), name, region, isConst, constantValue);
    }
  }
}