export interface ParameterSignature {
    name: string;
    type: string;
    optional: boolean;
}
export interface FunctionSignature {
    name: string;
    parameters: ParameterSignature[];
    returnType: string;
    filePath: string;
    isExported: boolean;
}
export interface InterfaceProperty {
    name: string;
    type: string;
    optional: boolean;
}
export interface InterfaceDefinition {
    name: string;
    properties: InterfaceProperty[];
    filePath: string;
}
export interface TypeAliasDefinition {
    name: string;
    definition: string;
    filePath: string;
}
export interface SymbolRegistry {
    functions: Record<string, FunctionSignature>;
    interfaces: Record<string, InterfaceDefinition>;
    types: Record<string, TypeAliasDefinition>;
}
export interface ProjectSnapshot {
    symbols: SymbolRegistry;
}
export type SignatureChange = {
    type: "parameter-added";
    parameter: ParameterSignature;
    breaking: boolean;
} | {
    type: "parameter-removed";
    parameter: ParameterSignature;
    breaking: true;
} | {
    type: "parameter-type-changed";
    before: ParameterSignature;
    after: ParameterSignature;
    breaking: true;
} | {
    type: "return-type-changed";
    before: string;
    after: string;
    breaking: true;
};
export interface FunctionDrift {
    name: string;
    filePathBefore: string;
    filePathAfter: string;
    changes: SignatureChange[];
}
export type SemverBump = "major" | "minor" | "patch";
export interface DriftReport {
    modifiedFunctions: FunctionDrift[];
    addedFunctions: string[];
    removedFunctions: string[];
    /** True if any change is breaking (removed fn, param removed, type changed, etc.). */
    hasBreakingChanges: boolean;
    /** Suggested semver bump based on change severity. */
    suggestedVersion: SemverBump;
}
/** Current snapshot storage format version. Bump when schema changes. */
export declare const SNAPSHOT_FORMAT_VERSION = 1;
/** Metadata stored alongside a snapshot for persistence and migration. */
export interface StoredSnapshotMetadata {
    /** Snapshot format version for migration. */
    version: number;
    /** ISO 8601 timestamp when snapshot was created. */
    createdAt: string;
    /** Path to tsconfig used for analysis (resolved at save time). */
    tsConfigPath: string;
    /** Optional git ref (branch/tag/commit) this snapshot represents. */
    gitRef?: string;
    /** Optional git commit SHA for reproducibility. */
    gitSha?: string;
}
/** A persisted snapshot with metadata for storage and comparison. */
export interface StoredSnapshot {
    metadata: StoredSnapshotMetadata;
    snapshot: ProjectSnapshot;
}
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