import type { EastDiagnostic, EastRule, EastRulesOptions } from "./types.js";
export interface DiagnosticsServiceOptions {
    rules?: readonly EastRule[];
    rulesOptions?: EastRulesOptions;
}
export interface DiagnosticsService {
    /** Native (semantic + syntactic) diagnostics for the file plus East rule
     * diagnostics, sorted by position. Returns `[]` if the file has no project. */
    diagnose(filePath: string): EastDiagnostic[];
    /** `diagnose`, rendered as an `<east-code-review>` block, or `""` if clean. */
    diagnoseText(filePath: string): string;
    /** Pre-build the LanguageService for the project nearest `fromDir` so the
     * first real `diagnose` doesn't pay the cold program+checker build. Returns
     * `false` when there is no tsconfig above `fromDir`. */
    warm(fromDir: string): boolean;
    /** Provide in-memory content for a file (an LSP buffer); takes precedence
     * over the on-disk content until cleared. */
    setOverlay(filePath: string, content: string): void;
    /** Drop the overlay for a file, reverting to on-disk content. */
    clearOverlay(filePath: string): void;
    dispose(): void;
}
export declare function createDiagnosticsService(options?: DiagnosticsServiceOptions): DiagnosticsService;
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