public static void BuildPropertyHashCode(IPropertySymbol property, AttributesMetadata attributesMetadata,
StringBuilder sb)
{
if (property.HasAttribute(attributesMetadata.IgnoreEquality))
{
return;
}
var propertyName = property.ToFQF();
var typeName = property.Type.ToNullableFQF();
sb.Append($"hashCode.Add(this.{propertyName}!, ");
if (property.HasAttribute(attributesMetadata.UnorderedEquality))
{
var types = property.GetIDictionaryTypeArguments();
if (types != null)
{
sb.Append(
$"global::Generator.Equals.DictionaryEqualityComparer<{string.Join(", ", types.Value)}>.Default");
}
else
{
types = property.GetIEnumerableTypeArguments() !;
sb.Append(
$"global::Generator.Equals.UnorderedEqualityComparer<{string.Join(", ", types.Value)}>.Default");
}
}
else if (property.HasAttribute(attributesMetadata.OrderedEquality))
{
var types = property.GetIEnumerableTypeArguments() !;
sb.Append(
$"global::Generator.Equals.OrderedEqualityComparer<{string.Join(", ", types.Value)}>.Default");
}
else if (property.HasAttribute(attributesMetadata.ReferenceEquality))
{
sb.Append($"global::Generator.Equals.ReferenceEqualityComparer<{typeName}>.Default");
}
else
{
sb.Append($"global::System.Collections.Generic.EqualityComparer<{typeName}>.Default");
}
sb.AppendLine(");");
}
public static void BuildPropertyEquality(AttributesMetadata attributesMetadata, StringBuilder sb,
IPropertySymbol property, bool explicitMode)
{
if (property.HasAttribute(attributesMetadata.IgnoreEquality))
{
return;
}
var propertyName = property.ToFQF();
var typeName = property.Type.ToNullableFQF();
if (property.HasAttribute(attributesMetadata.UnorderedEquality))
{
var types = property.GetIDictionaryTypeArguments();
if (types != null)
{
sb.AppendLine(
$"&& global::Generator.Equals.DictionaryEqualityComparer<{string.Join(", ", types.Value)}>.Default.Equals({propertyName}!, other.{propertyName}!)");
}
else
{
types = property.GetIEnumerableTypeArguments() !;
sb.AppendLine(
$"&& global::Generator.Equals.UnorderedEqualityComparer<{string.Join(", ", types.Value)}>.Default.Equals({propertyName}!, other.{propertyName}!)");
}
}
else if (property.HasAttribute(attributesMetadata.OrderedEquality))
{
var types = property.GetIEnumerableTypeArguments() !;
sb.AppendLine(
$"&& global::Generator.Equals.OrderedEqualityComparer<{string.Join(", ", types.Value)}>.Default.Equals({propertyName}!, other.{propertyName}!)");
}
else if (property.HasAttribute(attributesMetadata.ReferenceEquality))
{
sb.AppendLine(
$"&& global::Generator.Equals.ReferenceEqualityComparer<{typeName}>.Default.Equals({propertyName}!, other.{propertyName}!)");
}
else if (property.HasAttribute(attributesMetadata.SetEquality))
{
var types = property.GetIEnumerableTypeArguments() !;
sb.AppendLine(
$"&& global::Generator.Equals.SetEqualityComparer<{string.Join(", ", types.Value)}>.Default.Equals({propertyName}!, other.{propertyName}!)");
}
else if (property.HasAttribute(attributesMetadata.CustomEquality))
{
var attribute = property.GetAttribute(attributesMetadata.CustomEquality);
var comparerType = (INamedTypeSymbol)attribute?.ConstructorArguments[0].Value !;
var comparerMemberName = (string)attribute?.ConstructorArguments[1].Value !;
if (comparerType.GetMembers().Any(x => x.Name == comparerMemberName && x.IsStatic) || comparerType.GetProperties().Any(x => x.Name == comparerMemberName && x.IsStatic))
{
sb.AppendLine(
$"&& {comparerType.ToFQF()}.{comparerMemberName}.Equals({propertyName}!, other.{propertyName}!)");
}
else
{
sb.AppendLine(
$"&& new {comparerType.ToFQF()}().Equals({propertyName}!, other.{propertyName}!)");
}
}
else if (
!explicitMode ||
property.HasAttribute(attributesMetadata.DefaultEquality))
{
sb.AppendLine(
$"&& global::System.Collections.Generic.EqualityComparer<{typeName}>.Default.Equals({propertyName}!, other.{propertyName}!)");
}
}
