import type { EdictModule } from "../ast/nodes.js";
/**
 * Compare two modules and return the set of definition names that changed.
 *
 * A definition is "changed" if:
 * - Its structural hash differs (body, params, contracts, etc. changed)
 * - It was added (exists in `after` but not `before`)
 * - It was deleted (exists in `before` but not `after`)
 *
 * Import changes: if the `imports` arrays differ structurally, all definitions
 * that could reference an import are marked dirty (conservatively, all fns and consts).
 */
export declare function diffDefinitions(before: EdictModule, after: EdictModule): Set<string>;
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