public static Type GetCLRType(TigerType t)
{
if (t is IntType)
return typeof(int);
if (t is StringType)
return typeof(string);
if (t is VoidType)
return typeof(void);
if (t is ArrayType)
{
Type elemType = GetCLRType(((ArrayType)t).ElementsType);
return Array.CreateInstance(elemType, 1).GetType();
}
if (t is RecordType)
return ((RecordType)t).TypeBuilder;
return typeof(object);
}
public override bool MatchWith(TigerType type)
{
return type is RecordType || type is ArrayType || type == StringType.StringInstance || type == UndefinedType.UndefinedInstance;
}
public virtual bool MatchWith(TigerType type)
{
return this == type || type == UndefinedType.UndefinedInstance;
}
public override bool MatchWith(TigerType type)
{
return this == type || type == UndefinedType.UndefinedInstance || type == NillType.NillInstance;
}
public ArrayType(TigerType elementsType, string typeName)
{
ElementsType = elementsType;
this.typeName = typeName;
}
public bool HasType(TigerType t)
{
if (t is VoidType || t is UndefinedType || t is NillType)
return true;
return typesDic.Values.Any(typedecl => typedecl.MatchWith(t)) || (Parent != null && Parent.HasType(t));
}
public void AddType(string name, TigerType type)
{
typesDic.Add(name, type);
}
public override bool MatchWith(TigerType type)
{
return true;
}