private findTargets()

in server/src/jsonStore.ts [475:531]
52 lines of code
14 McCabe index (conditional complexity)

	private findTargets<T extends (DefinitionResult | DeclarationResult)>(uri: string, position: lsp.Position, edges: Map<Id, T>): lsp.Location | lsp.Location[] | undefined {
		const ranges = this.findRangesFromPosition(this.toDatabase(uri), position);
		if (ranges === undefined) {
			return undefined;
		}

		const resolveTargets = (result: lsp.Location[], dedupLocations: Set<string>, targetResult: T): void => {
			const ranges = this.item(targetResult);
			if (ranges === undefined) {
				return undefined;
			}
			for (const element of ranges) {
				this.addLocation(result, element, dedupLocations);
			}
		};

		const _findTargets = (result: lsp.Location[], dedupLocations: Set<string>, dedupMonikers: Set<string>, range: Range): void => {
			const resultPath = this.getResultPath(range.id, edges);
			if (resultPath.result === undefined) {
				return undefined;
			}

			const mostSpecificMoniker = this.getMostSpecificMoniker(resultPath);
			const monikers: Moniker[] = mostSpecificMoniker !== undefined ? [mostSpecificMoniker] : [];

			resolveTargets(result, dedupLocations, resultPath.result.value);
			for (const moniker of monikers) {
				if (dedupMonikers.has(moniker.key)) {
					continue;
				}
				dedupMonikers.add(moniker.key);
				const matchingMonikers = this.indices.monikers.get(moniker.key);
				if (matchingMonikers !== undefined) {
					for (const matchingMoniker of matchingMonikers) {
						const vertices = this.findVerticesForMoniker(matchingMoniker);
						if (vertices !== undefined) {
							for (const vertex of vertices) {
								const resultPath = this.getResultPath(vertex.id, edges);
								if (resultPath.result === undefined) {
									continue;
								}
								resolveTargets(result, dedupLocations, resultPath.result.value);
							}
						}
					}
				}
			}
		};

		const result: lsp.Location[] = [];
		const dedupLocations: Set<string> = new Set();
		const dedupMonikers: Set<string> = new Set();
		for (const range of ranges) {
			_findTargets(result, dedupLocations, dedupMonikers, range);
		}
		return result;
	}