import type { DiagnosticCategory, DiagnosticPhase, DiagnosticSeverity } from '../types.js';
export interface RelatedLocation {
    readonly message: string;
    readonly file: string;
    readonly line?: number;
    readonly column?: number;
}
export interface DiagnosticFix {
    readonly description: string;
    readonly suggestions?: readonly string[];
}
export interface Diagnostic {
    readonly phase: DiagnosticPhase;
    readonly category: DiagnosticCategory;
    readonly severity: DiagnosticSeverity;
    readonly code: string;
    readonly message: string;
    readonly file: string;
    readonly line?: number;
    readonly column?: number;
    readonly endLine?: number;
    readonly endColumn?: number;
    readonly constructKind?: string;
    readonly constructId?: string;
    readonly related?: readonly RelatedLocation[];
    readonly fix?: DiagnosticFix;
}
/**
 * Accumulator for diagnostics across compiler phases.
 * Maintains deterministic ordering: by file, then line, then column.
 */
export declare class DiagnosticBag {
    private readonly items;
    add(d: Diagnostic): void;
    get all(): readonly Diagnostic[];
    get errors(): readonly Diagnostic[];
    get warnings(): readonly Diagnostic[];
    get hasErrors(): boolean;
    /** Merge all diagnostics from another bag into this one. */
    merge(other: DiagnosticBag): void;
    /** Return diagnostics in deterministic order (file → line → column). */
    sorted(): readonly Diagnostic[];
}
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