export declare type PackageMeta = {
    readonly name: string;
    readonly target: Target;
    readonly sources: File[];
    readonly native_sources: File[];
    readonly dependencies: Dependency[];
    readonly capabilities: Capabilities;
};
export declare type Package = {
    readonly filename: string;
    readonly meta: PackageMeta;
};
export declare enum TargetTag {
    ANY = 0,
    NODE = 1,
    WEB = 2
}
export declare type Target = TargetAny | TargetNode | TargetWeb;
export declare type TargetAny = {
    readonly tag: TargetTag.ANY;
    toString(): string;
};
export declare type TargetNode = {
    readonly tag: TargetTag.NODE;
    toString(): string;
};
export declare type TargetWeb = {
    readonly tag: TargetTag.WEB;
    toString(): string;
};
export declare type Dependency = {
    readonly name: string;
    readonly capabilities: Set<Capability>;
    readonly target: Target;
};
export declare type File = {
    readonly filename: string;
    readonly target: Target;
};
export declare type Capabilities = {
    readonly requires: Set<Capability>;
    readonly provides: Set<ProvideCapability>;
};
export declare type ProvideCapability = {
    name: string;
    description: string;
};
export declare type Capability = string;
export declare function pkg(filename: string, meta: PackageMeta): Package;
export declare function file(x: File): File;
export declare function target_any(): TargetAny;
export declare function target_node(): TargetNode;
export declare function target_web(): TargetWeb;
export declare function dependency(x: Dependency): Dependency;
export declare function capability(x: Capability): Capability;
export declare function provide_capability(x: ProvideCapability): ProvideCapability;
export declare function capabilities(x: Capabilities): Capabilities;