Function fetchLineText

src/cm/lsp/references.ts:35–89

(uri: string, line: number)

}

async function fetchLineText(uri: string, line: number): Promise<string> {
	try {
		interface EditorManagerLike {
			getFile?: (uri: string, type: string) => EditorFileLike | null;
		}

		interface EditorFileLike {
			session?: {
				doc?: {
					line?: (n: number) => { text?: string } | null;
					toString?: () => string;
				};
			};
		}

		const em = (globalThis as Record<string, unknown>).editorManager as
			| EditorManagerLike
			| undefined;

		const openFile = em?.getFile?.(uri, "uri");
		if (openFile?.session?.doc) {
			const doc = openFile.session.doc;
			if (typeof doc.line === "function") {
				const lineObj = doc.line(line + 1);
				if (lineObj && typeof lineObj.text === "string") {
					return lineObj.text;
				}
			}
			if (typeof doc.toString === "function") {
				const content = doc.toString();
				const lines = content.split("\n");
				if (lines[line] !== undefined) {
					return lines[line];
				}
			}
		}

		const fs = fsOperation(uri);
		if (fs && (await fs.exists())) {
			const encoding =
				(settings as { value?: { defaultFileEncoding?: string } })?.value
					?.defaultFileEncoding || "utf-8";
			const content = await fs.readFile(encoding);
			if (typeof content === "string") {
				const lines = content.split("\n");
				if (lines[line] !== undefined) {
					return lines[line];
				}
			}
		}
	} catch (error) {
		console.warn(`Failed to fetch line text for ${uri}:${line}`, error);
	}
	return "";
}

function getWordAtCursor(view: EditorView): string {
	const { state } = view;