2026-05-28 10:45:35 +07:00
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using Microsoft.CodeAnalysis;
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using Microsoft.CodeAnalysis.CSharp;
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using Microsoft.CodeAnalysis.CSharp.Syntax;
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using Microsoft.CodeAnalysis.Text;
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using System.Collections.Generic;
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using System.Collections.Immutable;
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using System.Linq;
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using System.Text;
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namespace QWERTYkez.Mensura.Generator;
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[Generator(LanguageNames.CSharp)]
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public class UnitOperatorsGenerator : IIncrementalGenerator
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{
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public void Initialize(IncrementalGeneratorInitializationContext context)
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{
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// Регистрируем сам атрибут для использования в коде
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context.RegisterPostInitializationOutput(ctx =>
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{
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ctx.AddSource("UnitOperatorsGeneratorAttribute.g.cs",
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2026-05-28 16:44:39 +07:00
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SourceText.From(@"namespace QWERTYkez.Mensura
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2026-05-28 10:45:35 +07:00
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{
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[System.AttributeUsage(System.AttributeTargets.Struct | System.AttributeTargets.RecordStruct, AllowMultiple = false)]
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public sealed class UnitOperatorsGeneratorAttribute : System.Attribute { }
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}", Encoding.UTF8));
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});
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// Находим все record struct с атрибутом
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var unitStructs = context.SyntaxProvider
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.CreateSyntaxProvider(
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predicate: static (node, _) => IsCandidate(node),
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transform: static (ctx, _) => GetUnitInfo(ctx))
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.Where(info => info != null)
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.Select((info, _) => info!.Value)
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.Collect();
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context.RegisterSourceOutput(unitStructs, Execute);
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}
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private static bool IsCandidate(SyntaxNode node)
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{
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return node is RecordDeclarationSyntax record &&
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record.Modifiers.Any(SyntaxKind.ReadOnlyKeyword) &&
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record.Modifiers.Any(SyntaxKind.PartialKeyword) &&
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record.Keyword.IsKind(SyntaxKind.RecordKeyword) &&
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record.ClassOrStructKeyword.IsKind(SyntaxKind.StructKeyword);
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}
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private static UnitInfo? GetUnitInfo(GeneratorSyntaxContext context)
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{
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var record = (RecordDeclarationSyntax)context.Node;
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var semanticModel = context.SemanticModel;
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if (semanticModel.GetDeclaredSymbol(record) is not INamedTypeSymbol typeSymbol) return null;
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// Проверяем наличие атрибута [UnitOperatorsGenerator]
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bool hasAttribute = typeSymbol.GetAttributes()
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.Any(attr => attr.AttributeClass?.Name == "UnitOperatorsGeneratorAttribute");
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if (!hasAttribute) return null;
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string ns = typeSymbol.ContainingNamespace?.ToString();
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if (string.IsNullOrEmpty(ns)) return null;
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string typeName = typeSymbol.Name;
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// Собираем имена уже существующих членов, чтобы не генерировать дубликаты
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var existingMemberNames = new HashSet<string>(
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typeSymbol.GetMembers()
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.Where(m => m.Kind == SymbolKind.Method || m.Kind == SymbolKind.Property || m.Kind == SymbolKind.Field)
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.Select(m => m.Name));
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var existingOperatorNames = new HashSet<string>(
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typeSymbol.GetMembers()
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.Where(m => m is IMethodSymbol method && method.MethodKind == MethodKind.UserDefinedOperator)
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.Select(m => m.Name));
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return new UnitInfo(ns, typeName, existingMemberNames, existingOperatorNames);
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}
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private static void Execute(SourceProductionContext context, ImmutableArray<UnitInfo> units)
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{
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// Группируем по полному имени типа, чтобы избежать дублирования hintName
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var distinctUnits = units
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.GroupBy(u => $"{u.Namespace}.{u.TypeName}")
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.Select(g => g.First())
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.ToImmutableArray();
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foreach (var unit in distinctUnits)
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{
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string code = GenerateFullCode(unit);
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string hintName = $"{unit.Namespace}.{unit.TypeName}.Generated.cs"
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.Replace('<', '_')
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.Replace('>', '_')
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.Replace('[', '_')
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.Replace(']', '_')
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.Replace(' ', '_');
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context.AddSource(hintName, SourceText.From(code, Encoding.UTF8));
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}
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}
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private static string GenerateFullCode(UnitInfo info)
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{
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string t = info.TypeName;
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var sb = new StringBuilder();
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sb.AppendLine("// <auto-generated />");
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sb.AppendLine("using System.Globalization;");
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sb.AppendLine("using System.Runtime.Serialization;");
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sb.AppendLine("using System.Numerics;");
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sb.AppendLine();
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sb.AppendLine($"namespace {info.Namespace};");
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sb.AppendLine();
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sb.AppendLine($"[System.Text.Json.Serialization.JsonConverter(typeof({t}Converter))]");
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sb.AppendLine($"public readonly partial record struct {t}");
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sb.AppendLine("{");
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// 1. Поле и конструктор
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sb.AppendLine($" [System.Text.Json.Serialization.JsonInclude, DataMember, System.Text.Json.Serialization.JsonPropertyName(\"v\")]");
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sb.AppendLine($" internal double Value {{ get => _Value; init => _Value = value; }}");
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sb.AppendLine($" internal readonly double _Value;");
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sb.AppendLine($" internal {t}(double value) => _Value = value;");
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sb.AppendLine();
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// 2. Базовые методы
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if (!info.ExistingMemberNames.Contains("GetHashCode"))
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sb.AppendLine($" public override int GetHashCode() => _Value.GetHashCode();");
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if (!info.ExistingMemberNames.Contains("CompareTo"))
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{
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sb.AppendLine($" public int CompareTo({t}? other) => _Value.CompareTo(other is null ? 0d : other._Value);");
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sb.AppendLine($" public int CompareTo({t} other) => _Value.CompareTo(other._Value);");
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}
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if (!info.ExistingMemberNames.Contains("Equals"))
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sb.AppendLine($" public bool Equals({t}? other) => _Value.Equals(other?._Value);");
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sb.AppendLine();
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// 3. Свойства IsPositive и т.д.
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if (!info.ExistingMemberNames.Contains("IsPositive"))
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sb.AppendLine($" [System.Text.Json.Serialization.JsonIgnore, IgnoreDataMember] public bool IsPositive => _Value >= 0;");
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if (!info.ExistingMemberNames.Contains("IsGreaterThanZero"))
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sb.AppendLine($" [System.Text.Json.Serialization.JsonIgnore, IgnoreDataMember] public bool IsGreaterThanZero => _Value > 0;");
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if (!info.ExistingMemberNames.Contains("IsNegative"))
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sb.AppendLine($" [System.Text.Json.Serialization.JsonIgnore, IgnoreDataMember] public bool IsNegative => _Value < 0;");
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if (!info.ExistingMemberNames.Contains("IsZero"))
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sb.AppendLine($" [System.Text.Json.Serialization.JsonIgnore, IgnoreDataMember] public bool IsZero => _Value == 0;");
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sb.AppendLine();
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// 4. Статические свойства
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if (!info.ExistingMemberNames.Contains("Zero"))
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sb.AppendLine($" public static {t} Zero => new(0d);");
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if (!info.ExistingMemberNames.Contains("Min"))
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sb.AppendLine($" public static {t} Min => new(double.MinValue);");
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if (!info.ExistingMemberNames.Contains("Max"))
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sb.AppendLine($" public static {t} Max => new(double.MaxValue);");
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if (!info.ExistingMemberNames.Contains("NegativeInfinity"))
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sb.AppendLine($" public static {t} NegativeInfinity => new(double.NegativeInfinity);");
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if (!info.ExistingMemberNames.Contains("PositiveInfinity"))
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sb.AppendLine($" public static {t} PositiveInfinity => new(double.PositiveInfinity);");
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sb.AppendLine();
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// 5. Операторы сравнения (с поддержкой null)
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if (!info.ExistingOperatorNames.Contains("op_Equality"))
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sb.AppendLine($" public static bool operator ==({t}? left, {t}? right) => (left is null ? 0d : left._Value) == (right is null ? 0d : right._Value);");
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if (!info.ExistingOperatorNames.Contains("op_Inequality"))
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sb.AppendLine($" public static bool operator !=({t}? left, {t}? right) => (left is null ? 0d : left._Value) != (right is null ? 0d : right._Value);");
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if (!info.ExistingOperatorNames.Contains("op_LessThan"))
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sb.AppendLine($" public static bool operator <({t}? left, {t}? right) => (left is null ? 0d : left._Value) < (right is null ? 0d : right._Value);");
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if (!info.ExistingOperatorNames.Contains("op_LessThanOrEqual"))
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sb.AppendLine($" public static bool operator <=({t}? left, {t}? right) => (left is null ? 0d : left._Value) <= (right is null ? 0d : right._Value);");
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if (!info.ExistingOperatorNames.Contains("op_GreaterThan"))
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sb.AppendLine($" public static bool operator >({t}? left, {t}? right) => (left is null ? 0d : left._Value) > (right is null ? 0d : right._Value);");
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if (!info.ExistingOperatorNames.Contains("op_GreaterThanOrEqual"))
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sb.AppendLine($" public static bool operator >=({t}? left, {t}? right) => (left is null ? 0d : left._Value) >= (right is null ? 0d : right._Value);");
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sb.AppendLine();
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// 6. Унарные операторы
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if (!info.ExistingOperatorNames.Contains("op_UnaryPlus"))
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sb.AppendLine($" public static {t} operator +({t} x) => x;");
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if (!info.ExistingOperatorNames.Contains("op_UnaryNegation"))
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sb.AppendLine($" public static {t} operator -({t} x) => new(-x._Value);");
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sb.AppendLine();
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// 7. Бинарные +, - с тем же типом
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if (!info.ExistingOperatorNames.Contains("op_Addition"))
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sb.AppendLine($" public static {t} operator +({t} a, {t} b) => new(a._Value + b._Value);");
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if (!info.ExistingOperatorNames.Contains("op_Subtraction"))
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sb.AppendLine($" public static {t} operator -({t} a, {t} b) => new(a._Value - b._Value);");
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sb.AppendLine();
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// 8. Умножение на числа (все числовые типы)
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var numericTypes = new[] { "double", "double?", "byte", "byte?", "sbyte", "sbyte?",
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"short", "short?", "ushort", "ushort?", "int", "int?", "uint", "uint?",
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"long", "long?", "ulong", "ulong?", "float", "float?", "decimal", "decimal?" };
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if (!info.ExistingOperatorNames.Contains("op_Multiply"))
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{
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foreach (var nt in numericTypes)
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{
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bool isNullable = nt.EndsWith("?");
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string baseType = isNullable ? nt.TrimEnd('?') : nt;
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if (baseType == "decimal")
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{
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string conv = isNullable ? "(double)(b ?? 0m)" : "(double)b";
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sb.AppendLine($" public static {t} operator *({t} a, {nt} b) => new(a._Value * {conv});");
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sb.AppendLine($" public static {t} operator *({nt} a, {t} b) => new({conv} * b._Value);");
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}
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else if (isNullable)
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{
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sb.AppendLine($" public static {t} operator *({t} a, {nt} b) => new(a._Value * (b ?? 0d));");
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sb.AppendLine($" public static {t} operator *({nt} a, {t} b) => new((a ?? 0d) * b._Value);");
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}
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else
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{
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sb.AppendLine($" public static {t} operator *({t} a, {nt} b) => new(a._Value * b);");
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sb.AppendLine($" public static {t} operator *({nt} a, {t} b) => new(a * b._Value);");
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}
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}
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}
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// 9. Деление на число
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if (!info.ExistingOperatorNames.Contains("op_Division"))
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{
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foreach (var nt in numericTypes)
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{
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bool isNullable = nt.EndsWith("?");
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string baseType = isNullable ? nt.TrimEnd('?') : nt;
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if (baseType == "decimal")
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{
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string conv = isNullable ? "(double)(b ?? 0m)" : "(double)b";
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sb.AppendLine($" public static {t} operator /({t} a, {nt} b) => new(a._Value / {conv});");
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}
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else if (isNullable)
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{
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sb.AppendLine($" public static {t} operator /({t} a, {nt} b) => new(a._Value / (b ?? 0d));");
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}
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else
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{
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sb.AppendLine($" public static {t} operator /({t} a, {nt} b) => new(a._Value / b);");
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}
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}
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}
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// 10. Деление двух метрик (возвращает double)
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if (!info.ExistingOperatorNames.Contains("op_Division"))
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sb.AppendLine($" public static double operator /({t} a, {t} b) => a._Value / b._Value;");
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sb.AppendLine();
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// 11. Методы SetArray / SetList
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GenerateArrayAndListMethods(sb, t);
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sb.AppendLine("}");
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// 12. Конвертер JSON
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GenerateJsonConverter(sb, t);
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return sb.ToString();
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}
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private static void GenerateArrayAndListMethods(StringBuilder sb, string t)
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{
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// SetArray
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sb.AppendLine($@" /// <summary>With Multiply</summary>
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public {t}[] SetArray(IEnumerable<double> nums)
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{{
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if (nums is not null)
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{{
|
|
|
|
|
|
var result = new {t}[nums.Count()];
|
|
|
|
|
|
int i = 0;
|
|
|
|
|
|
foreach (var num in nums)
|
|
|
|
|
|
result[i++] = new(_Value * num);
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}}
|
|
|
|
|
|
return [];
|
|
|
|
|
|
}}
|
|
|
|
|
|
/// <summary>With Multiply</summary>
|
|
|
|
|
|
public {t}[] SetArray(IEnumerable<double?> nums)
|
|
|
|
|
|
{{
|
|
|
|
|
|
if (nums is not null)
|
|
|
|
|
|
{{
|
|
|
|
|
|
var result = new {t}[nums.Count()];
|
|
|
|
|
|
int i = 0;
|
|
|
|
|
|
foreach (var num in nums)
|
|
|
|
|
|
result[i++] = new((num ?? 0d) * _Value);
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}}
|
|
|
|
|
|
return [];
|
|
|
|
|
|
}}
|
|
|
|
|
|
/// <summary>With Multiply</summary>
|
|
|
|
|
|
public {t}[] SetArray<N>(IEnumerable<N> nums) where N : INumber<N>
|
|
|
|
|
|
{{
|
|
|
|
|
|
if (nums is not null)
|
|
|
|
|
|
{{
|
|
|
|
|
|
var result = new {t}[nums.Count()];
|
|
|
|
|
|
int i = 0;
|
|
|
|
|
|
foreach (var num in nums)
|
|
|
|
|
|
result[i++] = new(num.ToDouble() * _Value);
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}}
|
|
|
|
|
|
return [];
|
|
|
|
|
|
}}
|
|
|
|
|
|
/// <summary>With Multiply</summary>
|
|
|
|
|
|
public {t}[] SetArray<N>(IEnumerable<N?> nums) where N : struct, INumber<N>
|
|
|
|
|
|
{{
|
|
|
|
|
|
if (nums is not null)
|
|
|
|
|
|
{{
|
|
|
|
|
|
var result = new {t}[nums.Count()];
|
|
|
|
|
|
int i = 0;
|
|
|
|
|
|
foreach (var num in nums)
|
|
|
|
|
|
result[i++] = new(num.ToDouble() * _Value);
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}}
|
|
|
|
|
|
return [];
|
|
|
|
|
|
}}");
|
|
|
|
|
|
// SetList
|
|
|
|
|
|
sb.AppendLine($@"
|
|
|
|
|
|
/// <summary>With Multiply</summary>
|
|
|
|
|
|
public List<{t}> SetList(IEnumerable<double> nums)
|
|
|
|
|
|
{{
|
|
|
|
|
|
if (nums is not null)
|
|
|
|
|
|
{{
|
|
|
|
|
|
var result = new List<{t}>(nums.Count());
|
|
|
|
|
|
foreach (var num in nums)
|
|
|
|
|
|
result.Add(new(_Value * num));
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}}
|
|
|
|
|
|
return [];
|
|
|
|
|
|
}}
|
|
|
|
|
|
/// <summary>With Multiply</summary>
|
|
|
|
|
|
public List<{t}> SetList(IEnumerable<double?> nums)
|
|
|
|
|
|
{{
|
|
|
|
|
|
if (nums is not null)
|
|
|
|
|
|
{{
|
|
|
|
|
|
var result = new List<{t}>(nums.Count());
|
|
|
|
|
|
foreach (var num in nums)
|
|
|
|
|
|
result.Add(new((num ?? 0d) * _Value));
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}}
|
|
|
|
|
|
return [];
|
|
|
|
|
|
}}
|
|
|
|
|
|
/// <summary>With Multiply</summary>
|
|
|
|
|
|
public List<{t}> SetList<N>(IEnumerable<N> nums) where N : INumber<N>
|
|
|
|
|
|
{{
|
|
|
|
|
|
if (nums is not null)
|
|
|
|
|
|
{{
|
|
|
|
|
|
var result = new List<{t}>(nums.Count());
|
|
|
|
|
|
foreach (var num in nums)
|
|
|
|
|
|
result.Add(new(_Value * num.ToDouble()));
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}}
|
|
|
|
|
|
return [];
|
|
|
|
|
|
}}
|
|
|
|
|
|
/// <summary>With Multiply</summary>
|
|
|
|
|
|
public List<{t}> SetList<N>(IEnumerable<N?> nums) where N : struct, INumber<N>
|
|
|
|
|
|
{{
|
|
|
|
|
|
if (nums is not null)
|
|
|
|
|
|
{{
|
|
|
|
|
|
var result = new List<{t}>(nums.Count());
|
|
|
|
|
|
foreach (var num in nums)
|
|
|
|
|
|
result.Add(new(_Value * num.ToDouble()));
|
|
|
|
|
|
return result;
|
|
|
|
|
|
}}
|
|
|
|
|
|
return [];
|
|
|
|
|
|
}}");
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
private static void GenerateJsonConverter(StringBuilder sb, string t)
|
|
|
|
|
|
{
|
|
|
|
|
|
sb.AppendLine($@"
|
|
|
|
|
|
public class {t}Converter : System.Text.Json.Serialization.JsonConverter<{t}>
|
|
|
|
|
|
{{
|
|
|
|
|
|
private static readonly CultureInfo Culture = CultureInfo.InvariantCulture;
|
|
|
|
|
|
|
|
|
|
|
|
public override {t} Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
|
|
|
|
|
|
{{
|
|
|
|
|
|
double doubleValue;
|
|
|
|
|
|
if (reader.TokenType == JsonTokenType.String)
|
|
|
|
|
|
{{
|
|
|
|
|
|
if (!double.TryParse(reader.GetString(), Culture, out doubleValue))
|
|
|
|
|
|
throw new JsonException($""Не удалось преобразовать строковое значение в double для метрики {t}."");
|
|
|
|
|
|
}}
|
|
|
|
|
|
else
|
|
|
|
|
|
{{
|
|
|
|
|
|
doubleValue = reader.GetDouble();
|
|
|
|
|
|
}}
|
|
|
|
|
|
return new(doubleValue);
|
|
|
|
|
|
}}
|
|
|
|
|
|
|
|
|
|
|
|
public override void Write(Utf8JsonWriter writer, {t} value, JsonSerializerOptions options)
|
|
|
|
|
|
{{
|
|
|
|
|
|
writer.WriteNumberValue(value._Value);
|
|
|
|
|
|
}}
|
|
|
|
|
|
|
|
|
|
|
|
public override void WriteAsPropertyName(Utf8JsonWriter writer, {t} value, JsonSerializerOptions options)
|
|
|
|
|
|
{{
|
|
|
|
|
|
writer.WritePropertyName(value._Value.ToString(""R"", Culture));
|
|
|
|
|
|
}}
|
|
|
|
|
|
|
|
|
|
|
|
public override {t} ReadAsPropertyName(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
|
|
|
|
|
|
{{
|
|
|
|
|
|
string propertyName = reader.GetString()!;
|
|
|
|
|
|
if (!double.TryParse(propertyName, Culture, out double doubleValue))
|
|
|
|
|
|
throw new JsonException($""Невалидное числовое значение в ключе свойства JSON: '{{propertyName}}' для метрики {t}."");
|
|
|
|
|
|
return new(doubleValue);
|
|
|
|
|
|
}}
|
|
|
|
|
|
}}");
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
private readonly struct UnitInfo(string ns, string typeName, HashSet<string> existingMemberNames, HashSet<string> existingOperatorNames)
|
|
|
|
|
|
{
|
|
|
|
|
|
public string Namespace { get; } = ns;
|
|
|
|
|
|
public string TypeName { get; } = typeName;
|
|
|
|
|
|
public HashSet<string> ExistingMemberNames { get; } = existingMemberNames;
|
|
|
|
|
|
public HashSet<string> ExistingOperatorNames { get; } = existingOperatorNames;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
