/**
 * Loads `compilerOptions.paths` keys from tsconfig, following `extends` recursively.
 */
export declare function loadTsconfigPathPrefixes(projectRoot: string): string[];
export declare function matchesTsconfigPathPrefix(specifier: string, prefixes: readonly string[]): boolean;
/**
 * Returns true when `specifier` looks like a bare npm package import rather than
 * a relative path, absolute path, node built-in, tsconfig alias, or `#` import map.
 */
export declare function isBarePackageImportSpecifier(specifier: string, projectRoot?: string): boolean;
/**
 * Resolves a bare npm package entry for browser vendor prebundles.
 *
 * @remarks
 * Framework-owned dual packages such as `@ecopages/core` keep browser-first
 * `mainFields` and `conditionNames` so vendor prebundles pick the browser facade.
 * Third-party packages prefer ESM (`module` / `import`) and omit the `browser`
 * export condition so legacy UMD `exports.browser` entries cannot win during
 * Rolldown bundling.
 */
export declare function resolveBarePackageBrowserEntry(projectRoot: string, specifier: string): string | undefined;
/**
 * Resolves a relative import against the filesystem without requiring tsconfig.
 *
 * @remarks
 * Used when oxc-resolver has no tsconfig (minimal fixtures / apps without paths)
 * and as a fallback when the resolver cannot locate a relative specifier.
 */
export declare function resolveRelativeModulePath(fromFile: string, specifier: string): string | undefined;
/**
 * Resolves a relative or tsconfig path alias import (via oxc-resolver).
 */
export declare function resolveProjectModulePath(projectRoot: string, fromFile: string, specifier: string): string | undefined;
/**
 * Resolves a TS path alias import using the app's tsconfig `paths` (via oxc-resolver).
 */
export declare function resolveProjectImportPath(projectRoot: string, fromFile: string, specifier: string): string | undefined;