public override string ToDbValueMethod()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).AppendLine("private readonly string _dbValue;");
code.Indent(1).Append("public string ToDbValue()")
.ExpressionBody("_dbValue");
return(code.ToString());
}
public override string CastToUnderlyingOperator()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).AppendLine($"private readonly {UnderlyingTypeName} _value;");
code.Indent(1).Append($"public static explicit operator {UnderlyingTypeName}({TypeName} value)")
.ExpressionBody("value._value");
return(code.ToString());
}
protected string Indent(int count)
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(count);
return(code.ToString());
}
public override string PrivateConstructor()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).AppendLine($"private {TypeName}() {{ }}");
return(code.ToString());
}
public override string RegionStart(string regionName)
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).AppendLine($"#region {regionName}");
return(code.ToString());
}
public override string RegionEnd()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).AppendLine("#endregion");
code.AppendLine();
return(code.ToString());
}
public override string GreaterThanOrEqual()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).Append($"public static bool operator >=({TypeName} lhs, {TypeName} rhs)")
.ExpressionBody("lhs.CompareTo(rhs) >= 0");
return(code.ToString());
}
public override string AllMethod()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).Append($"public static IEnumerable<{TypeName}> All()")
.ExpressionBody($"All<{TypeName}>()");
code.AppendLine();
code.Indent(1).AppendLine("private static IEnumerable<T> All<T>()");
code.Indent(1).AppendLine("{");
code.Indent(2).AppendLine("var type = typeof(T);");
code.Indent(2).AppendLine("return type.GetFields(BindingFlags.Public | BindingFlags.Static)");
code.Indent(3).AppendLine(".Where(field => field.IsInitOnly)");
code.Indent(3).AppendLine(".Where(field => field.FieldType == type)");
code.Indent(3).AppendLine(".Select(field => field.GetValue(null))");
code.Indent(3).AppendLine(".Cast<T>();");
code.Indent(1).AppendLine("}");
return(code.ToString());
}
public override string CastToUnderlyingOperator()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).Append($"private static readonly Dictionary<{TypeName}, {UnderlyingTypeName}> UnderlyingMap")
.AppendLine($" = new Dictionary<{TypeName}, {UnderlyingTypeName}>");
code.Indent(1).AppendLine("{");
var castIntMappings = Members
.Select(member => $"{{{member.Name}, {Convert.ChangeType(member.GetValue(null), UnderlyingType)}}}")
.ToArray();
code.Indent(2);
code.AppendLine(string.Join($",\r\n{Indent(2)}", castIntMappings));
code.Indent(1).AppendLine("};");
code.AppendLine();
code.Indent(1).Append($"public static explicit operator {UnderlyingTypeName}({TypeName} value)")
.ExpressionBody("UnderlyingMap[value]");
return(code.ToString());
}
public override string ToStringMethod()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1)
.AppendLine($"private static readonly Dictionary<{TypeName}, string> ToStringMap = new Dictionary<{TypeName}, string>");
code.Indent(1).AppendLine("{");
var toStringMappings = MemberNames
.Select(memberName => $"{{{memberName}, {NameOf(memberName)}}}")
.ToArray();
code.Indent(2);
code.AppendLine(string.Join($",\r\n{Indent(2)}", toStringMappings));
code.Indent(1).AppendLine("};");
code.AppendLine();
code.Indent(1).Append("public override string ToString()")
.ExpressionBody("ToStringMap[this]");
return(code.ToString());
}
public override string StaticMembers()
{
var code = new CSharpBuilder(Options.LanguageVersion);
foreach (var memberName in MemberNames)
{
code.Indent(1).Append($"public static readonly {TypeName} {memberName}");
code.AppendLine($" = new {TypeName}();");
}
return(code.ToString());
}
public override string PrivateConstructor()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).Append($"private {TypeName}(string name");
if (Options.DbValue)
{
code.Append(", string dbValue");
}
if (Options.UnderlyingValue)
{
code.Append($", {UnderlyingTypeName} value");
}
code.AppendLine(")");
code.Indent(1).AppendLine("{");
code.Indent(2).AppendLine("_name = name;");
if (Options.DbValue)
{
code.Indent(2).AppendLine("_dbValue = dbValue;");
}
if (Options.UnderlyingValue)
{
code.Indent(2).AppendLine("_value = value;");
}
code.Indent(1).AppendLine("}");
return(code.ToString());
}
public override string FromStringMethod()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).AppendLine($"public static {TypeName} FromString(string value)");
code.Indent(1).AppendLine("{");
code.Indent(2).AppendLine($"if (value == null) throw new ArgumentNullException({NameOf("value")});");
code.AppendLine();
code.Indent(2).AppendLine("var result = All().FirstOrDefault(x => x.ToString() == value);");
code.Indent(2).AppendLine("if (result != null) return result;");
code.AppendLine();
code.Indent(2).AppendLine($"throw new ArgumentOutOfRangeException({NameOf("value")}, value, \"Invalid {TypeName}\");");
code.Indent(1).AppendLine("}");
return(code.ToString());
}
public override string CastFromUnderlyingOperator()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).AppendLine($"public static explicit operator {TypeName}({UnderlyingTypeName} value)");
code.Indent(1).AppendLine("{");
code.Indent(2).AppendLine($"var result = All().FirstOrDefault(x => ({UnderlyingTypeName}) x == value);");
code.Indent(2).AppendLine("if (result != null) return result;");
code.AppendLine();
code.Indent(2).AppendLine($"throw new InvalidCastException(\"The value \" + value + \" is not a valid {TypeName}\");");
code.Indent(1).AppendLine("}");
return(code.ToString());
}
public override string StaticMembers()
{
var code = new CSharpBuilder(Options.LanguageVersion);
foreach (var member in Members)
{
var memberValue = Convert.ChangeType(member.GetValue(null), UnderlyingType);
code.Indent(1).Append($"public static readonly {TypeName} {member.Name}");
code.Append($" = new {TypeName}(");
code.Append($"{NameOf(member.Name)}");
if (Options.DbValue)
{
code.Append($", \"{DbValue(member.Name)}\"");
}
if (Options.UnderlyingValue)
{
code.Append($", {memberValue}");
}
code.AppendLine(");");
}
return(code.ToString());
}
public override string CompareTo()
{
var code = new CSharpBuilder(Options.LanguageVersion);
code.Indent(1).AppendLine($"public int CompareTo({TypeName} other)");
code.Indent(1).AppendLine("{");
code.Indent(2).AppendLine("var results = new[]");
code.Indent(2).AppendLine("{");
if (Options.UnderlyingValue)
{
code.Indent(3).AppendLine($"(({UnderlyingTypeName}) this).CompareTo(({UnderlyingTypeName}) other)");
}
else
{
code.Indent(3).AppendLine("ToString().CompareTo(other.ToString())");
}
code.Indent(2).AppendLine("};");
code.Indent(2).AppendLine("return results");
code.Indent(3).AppendLine(".SkipWhile(diff => diff == 0)");
code.Indent(3).AppendLine(".FirstOrDefault();");
code.Indent(1).AppendLine("}");
return(code.ToString());
}