import { Program, CompilerHost, CompilerOptions, TsEmitCallback, CustomTransformers, PerformCompilationResult, Diagnostics, EmitFlags } from '@angular/compiler-cli';
export declare function performCompilationAsync({rootNames, options, host, oldProgram, emitCallback, gatherDiagnostics, customTransformers, emitFlags}: {
    rootNames: string[];
    options: CompilerOptions;
    host?: CompilerHost;
    oldProgram?: Program;
    emitCallback?: TsEmitCallback;
    gatherDiagnostics?: (program: Program) => Diagnostics;
    customTransformers?: CustomTransformers;
    emitFlags?: EmitFlags;
}): Promise<PerformCompilationResult>;