/// <summary>
/// Returns a custom comparer with specified options
/// </summary>
/// <param name="options"></param>
/// <returns></returns>
/// <exception cref="NotSupportedException"></exception>
public static ILEqualityComparer <T> Create(ILEqualityComparerOptions <T> options) // move all logic to generator
{
PropertyInfo[] properties;
FieldInfo[] fields;
var memberExpressions = options.MemberExpressions;
if (options.EqualityGenerationPreference == EqualityGenerationPreference.IgnoreMemberExpressions)
{
properties = typeof(T).GetProperties();
fields = typeof(T).GetFields();
if (memberExpressions.Length != 0)
{
properties = properties.Except(memberExpressions.Select(me => me.Member).OfType <PropertyInfo>()).ToArray();
fields = fields.Except(memberExpressions.Select(me => me.Member).OfType <FieldInfo>()).ToArray();
}
}
else
{
properties = memberExpressions.Select(e => e.Member).OfType <PropertyInfo>().ToArray();
fields = memberExpressions.Select(e => e.Member).OfType <FieldInfo>().ToArray();
}
var eq = ILEqualityComparerGenerator.GenerateEqualsFunc <T>(properties, fields);
var ghc = ILEqualityComparerGenerator.GenerateGetHashCodeFunc <T>(properties, fields);
return(new ILEqualityComparer <T>(eq, ghc));
}
private ILEqualityComparer(PropertyInfo[] properties, FieldInfo[] fields) :
this(ILEqualityComparerGenerator.GenerateEqualsFunc <T>(properties, fields), ILEqualityComparerGenerator.GenerateGetHashCodeFunc <T>(properties, fields))
{
}
private ILEqualityComparer(bool includePrivateMembers) :
this(ILEqualityComparerGenerator.GenerateEqualsFunc <T>(includePrivateMembers), ILEqualityComparerGenerator.GenerateGetHashCodeFunc <T>(includePrivateMembers))
{
}