import { ExpressionRuntimePort } from "../expression/evaluateExpression";
import { PipelineRuntimePort } from "../pipeline/runScaffoldPipeline";
/** Pure in-memory scaffold runtime. See ADR-0018. */
/** A composed in-memory runtime: the pipeline port, its backing file map, and the shared expr port. */
export interface InMemoryRuntime {
    /** The pipeline executor's port, backed by the shared file map. */
    port: PipelineRuntimePort;
    /** The shared render + write file map (`path → bytes`); the read face reads back from it. */
    files: Map<string, Buffer>;
    /** The pure expression port (whitelist + flags), reused for `{expr}` render-var derivation. */
    exprPort: ExpressionRuntimePort;
}
/** Build an in-memory runtime. */
export declare function createInMemoryRuntime(flagReader?: (name: string) => boolean): InMemoryRuntime;
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