/**
 * Before/after comparison of ABAP sources — the deterministic half of a
 * rework review.
 *
 * Findings are matched by CONTENT (rule + message + offending line text),
 * never by line number, so code that merely moved does not show up as
 * regressed or fixed. Blocker count / score / grade movement comes from the
 * same objective dual-parse diff check_cloud_readiness uses; this module
 * adds no judgment of its own.
 */
import type { AbapSource, AbapVersion, Finding, FocusTag } from "./engine.js";
import type { ReadinessGrade } from "./readiness.js";
export interface CompareSide {
    findingCount: number;
    cloudBlockerCount: number;
    score: number;
    grade: ReadinessGrade;
}
export interface OutlineChanges {
    classesAdded: string[];
    classesRemoved: string[];
    /** "class.method", lower-cased. */
    methodsAdded: string[];
    methodsRemoved: string[];
    formsAdded: string[];
    formsRemoved: string[];
}
export interface CompareOptions {
    version: AbapVersion;
    preset: "style" | "full" | "syntax-only";
    rules?: Record<string, unknown> | undefined;
    focus?: FocusTag | undefined;
    /** Baseline for the readiness halves; defaults to v758. */
    baselineVersion?: AbapVersion | undefined;
}
export interface CompareReport {
    /** Findings present before but gone after — improvements. */
    resolved: Finding[];
    /** Findings present only after — regressions. */
    introduced: Finding[];
    /** Findings present on both sides (content-matched). */
    unchangedCount: number;
    before: CompareSide;
    after: CompareSide;
    outlineChanges: OutlineChanges;
    matchNote: string;
}
export declare const MATCH_NOTE: string;
export declare function compareAbap(before: AbapSource[], after: AbapSource[], opts: CompareOptions): CompareReport;