feat(uml): implement element import handler

packages/uml-parser/src/metamodel/handlers/ElementImport.ts

@@ -0,0 +1,35 @@
+import type { GraphNode } from '@cm2ml/ir'
+
+import { Uml } from '../../uml'
+import { ElementImport } from '../metamodel'
+
+export const ElementImportHandler = ElementImport.createHandler(
+  (elementImport) => {
+    addEdge_importedElement(elementImport)
+    addEdge_importingNamespace(elementImport)
+  },
+)
+
+function addEdge_importedElement(elementImport: GraphNode) {
+  const importedElementId = elementImport.getAttribute(
+    Uml.Attributes.importedElement,
+  )?.value.literal
+  if (!importedElementId) {
+    throw new Error('Missing importedElement attribute on ElementImport')
+  }
+  const importedElement = elementImport.model.getNodeById(importedElementId)
+  if (!importedElement) {
+    throw new Error(
+      `Missing importedElement with id ${importedElementId} for ElementImport`,
+    )
+  }
+  elementImport.model.addEdge('importedElement', elementImport, importedElement)
+}
+
+function addEdge_importingNamespace(elementImport: GraphNode) {
+  const parent = elementImport.parent
+  if (!parent) {
+    throw new Error('Missing parent for ElementImport')
+  }
+  elementImport.model.addEdge('importingNamespace', elementImport, parent)
+}

packages/uml-parser/src/metamodel/handlers/index.ts

@@ -6,6 +6,7 @@ import { ClassHandler } from './Class'
 import { DataTypeHandler } from './DataType'
 import { DependencyHandler } from './Dependency'
 import { ElementHandler } from './Element'
+import { ElementImportHandler } from './ElementImport'
 import { EnumerationHandler } from './Enumeration'
 import { EnumerationLiteralHandler } from './EnumerationLiteral'
 import { GeneralizationHandler } from './Generalization'
@@ -37,6 +38,7 @@ export const handlers: Record<`${string}Handler`, MetamodelElement> = {
   DataTypeHandler,
   DependencyHandler,
   ElementHandler,
+  ElementImportHandler,
   EnumerationHandler,
   EnumerationLiteralHandler,
   GeneralizationHandler,