| | | 1 | | using System; |
| | | 2 | | using System.Collections.Generic; |
| | | 3 | | |
| | | 4 | | namespace NexusLabs.Needlr.Generators; |
| | | 5 | | |
| | | 6 | | /// <summary> |
| | | 7 | | /// Specifies the lifetime of a service in the dependency injection container. |
| | | 8 | | /// </summary> |
| | | 9 | | /// <remarks> |
| | | 10 | | /// This enum mirrors <c>Microsoft.Extensions.DependencyInjection.ServiceLifetime</c> |
| | | 11 | | /// to avoid adding a dependency on that package in the attributes assembly. |
| | | 12 | | /// </remarks> |
| | | 13 | | public enum InjectableLifetime |
| | | 14 | | { |
| | | 15 | | /// <summary> |
| | | 16 | | /// A single instance is created and shared across all requests. |
| | | 17 | | /// </summary> |
| | | 18 | | Singleton = 0, |
| | | 19 | | |
| | | 20 | | /// <summary> |
| | | 21 | | /// A new instance is created for each scope (e.g., each HTTP request). |
| | | 22 | | /// </summary> |
| | | 23 | | Scoped = 1, |
| | | 24 | | |
| | | 25 | | /// <summary> |
| | | 26 | | /// A new instance is created each time the service is requested. |
| | | 27 | | /// </summary> |
| | | 28 | | Transient = 2 |
| | | 29 | | } |
| | | 30 | | |
| | | 31 | | /// <summary> |
| | | 32 | | /// Represents metadata about an injectable type discovered at compile time. |
| | | 33 | | /// </summary> |
| | | 34 | | /// <remarks> |
| | | 35 | | /// This struct is used by the generated TypeRegistry to provide type |
| | | 36 | | /// information without requiring reflection at runtime. |
| | | 37 | | /// </remarks> |
| | | 38 | | public readonly struct InjectableTypeInfo |
| | | 39 | | { |
| | | 40 | | /// <summary> |
| | | 41 | | /// Initializes a new instance of <see cref="InjectableTypeInfo"/>. |
| | | 42 | | /// </summary> |
| | | 43 | | /// <param name="type">The concrete implementation type.</param> |
| | | 44 | | /// <param name="interfaces">The interfaces implemented by the type that should be registered.</param> |
| | | 45 | | public InjectableTypeInfo(Type type, IReadOnlyList<Type> interfaces) |
| | | 46 | | : this(type, interfaces, null, null) |
| | | 47 | | { |
| | | 48 | | } |
| | | 49 | | |
| | | 50 | | /// <summary> |
| | | 51 | | /// Initializes a new instance of <see cref="InjectableTypeInfo"/>. |
| | | 52 | | /// </summary> |
| | | 53 | | /// <param name="type">The concrete implementation type.</param> |
| | | 54 | | /// <param name="interfaces">The interfaces implemented by the type that should be registered.</param> |
| | | 55 | | /// <param name="lifetime">The pre-computed service lifetime, or null if not determined.</param> |
| | | 56 | | public InjectableTypeInfo(Type type, IReadOnlyList<Type> interfaces, InjectableLifetime? lifetime) |
| | | 57 | | : this(type, interfaces, lifetime, null) |
| | | 58 | | { |
| | | 59 | | } |
| | | 60 | | |
| | | 61 | | /// <summary> |
| | | 62 | | /// Initializes a new instance of <see cref="InjectableTypeInfo"/>. |
| | | 63 | | /// </summary> |
| | | 64 | | /// <param name="type">The concrete implementation type.</param> |
| | | 65 | | /// <param name="interfaces">The interfaces implemented by the type that should be registered.</param> |
| | | 66 | | /// <param name="lifetime">The pre-computed service lifetime, or null if not determined.</param> |
| | | 67 | | /// <param name="factory"> |
| | | 68 | | /// A factory delegate that creates an instance of the type using the service provider. |
| | | 69 | | /// When provided, enables AOT-compatible instantiation without runtime reflection. |
| | | 70 | | /// </param> |
| | | 71 | | public InjectableTypeInfo(Type type, IReadOnlyList<Type> interfaces, InjectableLifetime? lifetime, Func<IServiceProv |
| | | 72 | | : this(type, interfaces, lifetime, factory, Array.Empty<string>()) |
| | | 73 | | { |
| | | 74 | | } |
| | | 75 | | |
| | | 76 | | /// <summary> |
| | | 77 | | /// Initializes a new instance of <see cref="InjectableTypeInfo"/> with keyed service support. |
| | | 78 | | /// </summary> |
| | | 79 | | /// <param name="type">The concrete implementation type.</param> |
| | | 80 | | /// <param name="interfaces">The interfaces implemented by the type that should be registered.</param> |
| | | 81 | | /// <param name="lifetime">The pre-computed service lifetime, or null if not determined.</param> |
| | | 82 | | /// <param name="factory"> |
| | | 83 | | /// A factory delegate that creates an instance of the type using the service provider. |
| | | 84 | | /// When provided, enables AOT-compatible instantiation without runtime reflection. |
| | | 85 | | /// </param> |
| | | 86 | | /// <param name="serviceKeys"> |
| | | 87 | | /// The service keys from [Keyed] attributes. When provided, the type will be registered |
| | | 88 | | /// as a keyed service in addition to its normal registration. |
| | | 89 | | /// </param> |
| | | 90 | | public InjectableTypeInfo(Type type, IReadOnlyList<Type> interfaces, InjectableLifetime? lifetime, Func<IServiceProv |
| | | 91 | | { |
| | | 92 | | Type = type; |
| | | 93 | | Interfaces = interfaces; |
| | | 94 | | Lifetime = lifetime; |
| | | 95 | | Factory = factory; |
| | | 96 | | ServiceKeys = serviceKeys; |
| | | 97 | | } |
| | | 98 | | |
| | | 99 | | /// <summary> |
| | | 100 | | /// Gets the concrete implementation type. |
| | | 101 | | /// </summary> |
| | | 102 | | public Type Type { get; } |
| | | 103 | | |
| | | 104 | | /// <summary> |
| | | 105 | | /// Gets the interfaces implemented by the type that should be registered. |
| | | 106 | | /// </summary> |
| | | 107 | | public IReadOnlyList<Type> Interfaces { get; } |
| | | 108 | | |
| | | 109 | | /// <summary> |
| | | 110 | | /// Gets the pre-computed service lifetime for this type, or null if |
| | | 111 | | /// the lifetime should be determined at runtime by an <c>ITypeFilterer</c>. |
| | | 112 | | /// </summary> |
| | | 113 | | /// <remarks> |
| | | 114 | | /// When this value is set, the type registrar can skip runtime reflection |
| | | 115 | | /// for constructor analysis, improving startup performance and enabling |
| | | 116 | | /// AOT compilation scenarios. |
| | | 117 | | /// </remarks> |
| | | 118 | | public InjectableLifetime? Lifetime { get; } |
| | | 119 | | |
| | | 120 | | /// <summary> |
| | | 121 | | /// Gets a factory delegate that creates an instance of the type using the service provider. |
| | | 122 | | /// </summary> |
| | | 123 | | /// <remarks> |
| | | 124 | | /// <para> |
| | | 125 | | /// When this delegate is provided, the type registrar can use it to create instances |
| | | 126 | | /// without relying on <c>Activator.CreateInstance</c> or reflection-based constructor |
| | | 127 | | /// invocation. This is essential for NativeAOT scenarios where reflection may be disabled. |
| | | 128 | | /// </para> |
| | | 129 | | /// <para> |
| | | 130 | | /// The factory receives an <see cref="IServiceProvider"/> and should resolve all |
| | | 131 | | /// constructor dependencies from it before creating the instance. |
| | | 132 | | /// </para> |
| | | 133 | | /// </remarks> |
| | | 134 | | public Func<IServiceProvider, object>? Factory { get; } |
| | | 135 | | |
| | | 136 | | /// <summary> |
| | | 137 | | /// Gets the service keys from [Keyed] attributes on this type. |
| | | 138 | | /// </summary> |
| | | 139 | | /// <remarks> |
| | | 140 | | /// <para> |
| | | 141 | | /// When service keys are present, the type will be registered as a keyed service |
| | | 142 | | /// in addition to its normal registration. Consumers can then resolve the specific |
| | | 143 | | /// implementation using <c>[FromKeyedServices("key")]</c> on constructor parameters. |
| | | 144 | | /// </para> |
| | | 145 | | /// <para> |
| | | 146 | | /// A type can have multiple keys, resulting in multiple keyed registrations for |
| | | 147 | | /// the same implementation. |
| | | 148 | | /// </para> |
| | | 149 | | /// </remarks> |
| | | 150 | | public IReadOnlyList<string> ServiceKeys { get; } |
| | | 151 | | } |
| | | 152 | | |
| | | 153 | | /// <summary> |
| | | 154 | | /// Represents metadata about a plugin type discovered at compile time. |
| | | 155 | | /// </summary> |
| | | 156 | | /// <remarks> |
| | | 157 | | /// This struct is used by the generated TypeRegistry to provide plugin |
| | | 158 | | /// factory methods without requiring reflection or Activator.CreateInstance at runtime. |
| | | 159 | | /// </remarks> |
| | | 160 | | public readonly struct PluginTypeInfo |
| | | 161 | | { |
| | | 162 | | /// <summary> |
| | | 163 | | /// Initializes a new instance of <see cref="PluginTypeInfo"/>. |
| | | 164 | | /// </summary> |
| | | 165 | | /// <param name="pluginType">The concrete plugin type.</param> |
| | | 166 | | /// <param name="pluginInterfaces">The plugin interfaces implemented by the type.</param> |
| | | 167 | | /// <param name="factory">A factory delegate that creates an instance of the plugin.</param> |
| | | 168 | | public PluginTypeInfo(Type pluginType, IReadOnlyList<Type> pluginInterfaces, Func<object> factory) |
| | 23 | 169 | | : this(pluginType, pluginInterfaces, factory, Array.Empty<Type>(), 0) |
| | | 170 | | { |
| | 23 | 171 | | } |
| | | 172 | | |
| | | 173 | | /// <summary> |
| | | 174 | | /// Initializes a new instance of <see cref="PluginTypeInfo"/>. |
| | | 175 | | /// </summary> |
| | | 176 | | /// <param name="pluginType">The concrete plugin type.</param> |
| | | 177 | | /// <param name="pluginInterfaces">The plugin interfaces implemented by the type.</param> |
| | | 178 | | /// <param name="factory">A factory delegate that creates an instance of the plugin.</param> |
| | | 179 | | /// <param name="attributes">The attribute types applied to the plugin type.</param> |
| | | 180 | | public PluginTypeInfo(Type pluginType, IReadOnlyList<Type> pluginInterfaces, Func<object> factory, IReadOnlyList<Typ |
| | 22 | 181 | | : this(pluginType, pluginInterfaces, factory, attributes, 0) |
| | | 182 | | { |
| | 22 | 183 | | } |
| | | 184 | | |
| | | 185 | | /// <summary> |
| | | 186 | | /// Initializes a new instance of <see cref="PluginTypeInfo"/> with execution order. |
| | | 187 | | /// </summary> |
| | | 188 | | /// <param name="pluginType">The concrete plugin type.</param> |
| | | 189 | | /// <param name="pluginInterfaces">The plugin interfaces implemented by the type.</param> |
| | | 190 | | /// <param name="factory">A factory delegate that creates an instance of the plugin.</param> |
| | | 191 | | /// <param name="attributes">The attribute types applied to the plugin type.</param> |
| | | 192 | | /// <param name="order">The execution order. Lower values execute first.</param> |
| | | 193 | | public PluginTypeInfo(Type pluginType, IReadOnlyList<Type> pluginInterfaces, Func<object> factory, IReadOnlyList<Typ |
| | | 194 | | { |
| | 150 | 195 | | PluginType = pluginType; |
| | 150 | 196 | | PluginInterfaces = pluginInterfaces; |
| | 150 | 197 | | Factory = factory; |
| | 150 | 198 | | Attributes = attributes; |
| | 150 | 199 | | Order = order; |
| | 150 | 200 | | } |
| | | 201 | | |
| | | 202 | | /// <summary> |
| | | 203 | | /// Gets the concrete plugin type. |
| | | 204 | | /// </summary> |
| | 180052 | 205 | | public Type PluginType { get; } |
| | | 206 | | |
| | | 207 | | /// <summary> |
| | | 208 | | /// Gets the plugin interfaces implemented by the type. |
| | | 209 | | /// </summary> |
| | 0 | 210 | | public IReadOnlyList<Type> PluginInterfaces { get; } |
| | | 211 | | |
| | | 212 | | /// <summary> |
| | | 213 | | /// Gets a factory delegate that creates an instance of the plugin |
| | | 214 | | /// without using Activator.CreateInstance. |
| | | 215 | | /// </summary> |
| | 1922 | 216 | | public Func<object> Factory { get; } |
| | | 217 | | |
| | | 218 | | /// <summary> |
| | | 219 | | /// Gets the attribute types applied to the plugin type. |
| | | 220 | | /// </summary> |
| | | 221 | | /// <remarks> |
| | | 222 | | /// This enables attribute-based plugin filtering without requiring |
| | | 223 | | /// reflection via <c>GetCustomAttribute</c> at runtime. |
| | | 224 | | /// </remarks> |
| | 444 | 225 | | public IReadOnlyList<Type> Attributes { get; } |
| | | 226 | | |
| | | 227 | | /// <summary> |
| | | 228 | | /// Gets the execution order for this plugin. Lower values execute first. |
| | | 229 | | /// </summary> |
| | | 230 | | /// <remarks> |
| | | 231 | | /// <para> |
| | | 232 | | /// Plugins with lower order values are executed before those with higher values. |
| | | 233 | | /// The default order is 0. Use negative values for plugins that must run early |
| | | 234 | | /// (e.g., infrastructure setup) and positive values for plugins that must run |
| | | 235 | | /// late (e.g., validation, cleanup). |
| | | 236 | | /// </para> |
| | | 237 | | /// <para> |
| | | 238 | | /// When multiple plugins have the same order, they are sorted alphabetically |
| | | 239 | | /// by their fully qualified type name for deterministic execution. |
| | | 240 | | /// </para> |
| | | 241 | | /// </remarks> |
| | 46032 | 242 | | public int Order { get; } |
| | | 243 | | |
| | | 244 | | /// <summary> |
| | | 245 | | /// Checks if the plugin has an attribute of the specified type. |
| | | 246 | | /// </summary> |
| | | 247 | | /// <typeparam name="TAttribute">The attribute type to check for.</typeparam> |
| | | 248 | | /// <returns>True if the plugin has the attribute; otherwise, false.</returns> |
| | | 249 | | public bool HasAttribute<TAttribute>() where TAttribute : Attribute |
| | | 250 | | { |
| | 256 | 251 | | var attributeType = typeof(TAttribute); |
| | 666 | 252 | | for (int i = 0; i < Attributes.Count; i++) |
| | | 253 | | { |
| | 111 | 254 | | if (attributeType.IsAssignableFrom(Attributes[i])) |
| | 34 | 255 | | return true; |
| | | 256 | | } |
| | 222 | 257 | | return false; |
| | | 258 | | } |
| | | 259 | | |
| | | 260 | | /// <summary> |
| | | 261 | | /// Checks if the plugin has an attribute of the specified type. |
| | | 262 | | /// </summary> |
| | | 263 | | /// <param name="attributeType">The attribute type to check for.</param> |
| | | 264 | | /// <returns>True if the plugin has the attribute; otherwise, false.</returns> |
| | | 265 | | public bool HasAttribute(Type attributeType) |
| | | 266 | | { |
| | 0 | 267 | | for (int i = 0; i < Attributes.Count; i++) |
| | | 268 | | { |
| | 0 | 269 | | if (attributeType.IsAssignableFrom(Attributes[i])) |
| | 0 | 270 | | return true; |
| | | 271 | | } |
| | 0 | 272 | | return false; |
| | | 273 | | } |
| | | 274 | | } |