* Updates Dependencies

* Uses webpack to bundle runtime library into a single file
* Inject the entire file into the Debugee
* Register runtime helpers (hediet_dbgVis)

data-extraction/src/js/api/DataExtractorApiImpl.ts

@@ -0,0 +1,90 @@
+import {
+	DataExtractorApi,
+	DataResult,
+	JSONString,
+	DataExtractor,
+	DataExtraction,
+	ExtractionCollector,
+} from "./DataExtractorApi";
+import { ExtractedData, DataExtractorInfo } from "../../DataExtractionResult";
+import { registerDefaultDataExtractors } from "./default-extractors";
+
+export class DataExtractorApiImpl implements DataExtractorApi {
+	private readonly extractors = new Map<
+		string,
+		DataExtractor<ExtractedData>
+	>();
+
+	private toJson<TData>(data: TData): JSONString<TData> {
+		return JSON.stringify(data) as any;
+	}
+
+	public registerExtractor<TExtractedData extends ExtractedData>(
+		extractor: DataExtractor<TExtractedData>
+	): void {
+		this.extractors.set(extractor.id, extractor);
+	}
+
+	public registerExtractors(
+		extractors: DataExtractor<ExtractedData>[]
+	): void {
+		for (const e of extractors) {
+			this.registerExtractor(e);
+		}
+	}
+
+	public getData(
+		value: unknown,
+		evalFn: <T>(expression: string) => T,
+		preferredDataExtractorId: string | undefined
+	): JSONString<DataResult> {
+		const extractions = new Array<DataExtraction<ExtractedData>>();
+		const extractionCollector: ExtractionCollector<ExtractedData> = {
+			addExtraction(extraction) {
+				extractions.push(extraction);
+			},
+		};
+
+		for (const e of this.extractors.values()) {
+			e.getExtractions(value, extractionCollector, { evalFn });
+		}
+		extractions.sort((a, b) => b.priority - a.priority);
+		let usedExtraction = extractions[0];
+		if (!usedExtraction) {
+			return this.toJson({ kind: "NoExtractors" } as DataResult);
+		}
+
+		if (preferredDataExtractorId) {
+			const preferred = extractions.find(
+				e => e.id === preferredDataExtractorId
+			);
+			if (preferred) {
+				usedExtraction = preferred;
+			}
+		}
+
+		function mapExtractor(
+			e: DataExtraction<ExtractedData>
+		): DataExtractorInfo {
+			return {
+				id: e.id as any,
+				name: e.name,
+				priority: e.priority,
+			};
+		}
+
+		const data = usedExtraction.extractData();
+		return this.toJson({
+			kind: "Data",
+			extractionResult: {
+				data,
+				usedExtractor: mapExtractor(usedExtraction),
+				availableExtractors: extractions.map(mapExtractor),
+			},
+		} as DataResult);
+	}
+
+	public registerDefaultExtractors(preferExisting: boolean = false): void {
+		registerDefaultDataExtractors(this);
+	}
+}