/**
 * StyleX integration for Nifra's Bun and Vite pipelines.
 *
 * The StyleX compiler stays an optional peer owned by the StyleX project. This module owns only the
 * Nifra boundary: transform route/component modules in both pipelines, emit client CSS through the
 * existing virtual stylesheet seam, and run the same transform without CSS for SSR.
 */
import type { BunPlugin } from "bun";
/** StyleX's module resolution option, kept structural so the compiler remains an optional peer. */
export interface StylexModuleResolution {
    readonly type: "commonJS" | "haste";
    readonly rootDir: string;
}
/** Structural slice of `@babel/core` used by the adapter. */
export interface StylexBabelCompiler {
    transformAsync(source: string, options: Readonly<Record<string, unknown>>): Promise<StylexBabelResult | null | undefined>;
}
/** Structural slice of the StyleX Babel plugin used by the adapter. */
export interface StylexCompiler {
    withOptions(options: Readonly<Record<string, unknown>>): unknown;
    processStylexRules(rules: readonly unknown[], options: Readonly<Record<string, unknown>>): string;
}
/** Optional peer injection and compiler configuration shared by Bun and Vite adapters. */
export interface StylexPluginOptions {
    /** Inject `@babel/core` in tests or advanced integrations. Defaults to the optional peer. */
    readonly babel?: StylexBabelCompiler;
    /** Inject `@stylexjs/babel-plugin` in tests or advanced integrations. */
    readonly compiler?: StylexCompiler;
    /** Inject Babel syntax plugins. Defaults to the three official syntax peers. */
    readonly syntaxPlugins?: {
        readonly flow: unknown;
        readonly jsx: unknown;
        readonly typescript: unknown;
    };
    /** StyleX import sources to transform. Defaults to `stylex` and `@stylexjs/stylex`. */
    readonly importSources?: readonly string[];
    /** StyleX development transform mode. Defaults to Nifra's dev-server signal. */
    readonly dev?: boolean;
    /** StyleX CSS layer output. Defaults to `true` for deterministic precedence. */
    readonly useCSSLayers?: boolean;
    /** StyleX's module resolution policy. */
    readonly unstable_moduleResolution?: StylexModuleResolution;
    /** Extra Babel plugins and presets merged before the StyleX plugin. */
    readonly babelConfig?: {
        readonly plugins?: readonly unknown[];
        readonly presets?: readonly unknown[];
    };
}
interface StylexBabelResult {
    readonly code?: unknown;
    readonly metadata?: unknown;
}
/** Build a Bun plugin that transforms StyleX and emits CSS for the browser or class maps for SSR. */
export declare function stylexBunPlugin(generate: "dom" | "ssr", options?: StylexPluginOptions): BunPlugin;
/** Structural Vite plugin return type. Vite remains an optional peer of `@nifrajs/web`. */
export interface StylexVitePlugin {
    readonly name: string;
    transform(source: string, id: string): Promise<{
        readonly code: string;
        readonly map?: null;
    } | undefined>;
    resolveId(id: string): string | undefined;
    load(id: string): string | undefined;
}
/** Build a Vite plugin that maps each transformed StyleX module to a virtual CSS asset. */
export declare function stylexVitePlugin(generate: "dom" | "ssr", options?: StylexPluginOptions): StylexVitePlugin;
/** Convenience alias for apps that configure only a browser Vite build. */
export declare const stylexVite: (options?: StylexPluginOptions) => StylexVitePlugin;
export {};
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