feat: Add packet diagram

packages/parser/src/language/packet/module.ts

@@ -0,0 +1,72 @@
+import type {
+  DefaultSharedModuleContext,
+  LangiumServices,
+  LangiumSharedServices,
+  Module,
+  PartialLangiumServices,
+} from 'langium';
+import { EmptyFileSystem, createDefaultModule, createDefaultSharedModule, inject } from 'langium';
+
+import { CommonLexer } from '../common/lexer.js';
+import { MermaidGeneratedSharedModule, PacketGeneratedModule } from '../generated/module.js';
+import { PacketTokenBuilder } from './tokenBuilder.js';
+import { CommonValueConverter } from '../common/valueConverter.js';
+
+/**
+ * Declaration of `Packet` services.
+ */
+type PacketAddedServices = {
+  parser: {
+    Lexer: CommonLexer;
+    TokenBuilder: PacketTokenBuilder;
+    ValueConverter: CommonValueConverter;
+  };
+};
+
+/**
+ * Union of Langium default services and `Packet` services.
+ */
+export type PacketServices = LangiumServices & PacketAddedServices;
+
+/**
+ * Dependency injection module that overrides Langium default services and
+ * contributes the declared `Packet` services.
+ */
+export const PacketModule: Module<PacketServices, PartialLangiumServices & PacketAddedServices> = {
+  parser: {
+    Lexer: (services: PacketServices) => new CommonLexer(services),
+    TokenBuilder: () => new PacketTokenBuilder(),
+    ValueConverter: () => new CommonValueConverter(),
+  },
+};
+
+/**
+ * Create the full set of services required by Langium.
+ *
+ * First inject the shared services by merging two modules:
+ *  - Langium default shared services
+ *  - Services generated by langium-cli
+ *
+ * Then inject the language-specific services by merging three modules:
+ *  - Langium default language-specific services
+ *  - Services generated by langium-cli
+ *  - Services specified in this file
+ * @param context - Optional module context with the LSP connection
+ * @returns An object wrapping the shared services and the language-specific services
+ */
+export function createPacketServices(context: DefaultSharedModuleContext = EmptyFileSystem): {
+  shared: LangiumSharedServices;
+  Packet: PacketServices;
+} {
+  const shared: LangiumSharedServices = inject(
+    createDefaultSharedModule(context),
+    MermaidGeneratedSharedModule
+  );
+  const Packet: PacketServices = inject(
+    createDefaultModule({ shared }),
+    PacketGeneratedModule,
+    PacketModule
+  );
+  shared.ServiceRegistry.register(Packet);
+  return { shared, Packet };
+}