import type { ITtscProjectPluginConfig } from "../ITtscProjectPluginConfig";
/**
 * Internal options shared by the CLI build, single-file emit, and runtime
 * paths.
 */
export interface TtscCommonOptions {
    /**
     * Explicit TypeScript-Go executable.
     *
     * When supplied, ttsc skips package-based tsgo resolution and shells out to
     * this binary directly.
     */
    binary?: string;
    /** Working directory for config discovery and relative file paths. */
    cwd?: string;
    /** Project root override for generated tsconfig wrappers. */
    projectRoot?: string;
    /**
     * Directory that anchors plugin config-file discovery and relative
     * `configFile` resolution (forwarded to plugin processes as
     * `TTSC_PLUGIN_CONFIG_DIR`). Set by build integrations that compile through a
     * generated tsconfig outside the project; when omitted, plugins anchor at the
     * tsconfig's own directory.
     */
    pluginConfigDir?: string;
    /** Environment variables merged over `process.env` for child processes. */
    env?: NodeJS.ProcessEnv;
    /** Explicit root directory for compiled source-plugin cache artifacts. */
    cacheDir?: string;
    /** Normalize compiler output so diagnostics can be parsed structurally. */
    structuredDiagnostics?: boolean;
    /**
     * Run TypeScript-Go single-threaded — one checker, serial parse/check/emit.
     * Mirrors `tsgo --singleThreaded`. Useful for deterministic debugging and CI
     * repro.
     */
    singleThreaded?: boolean;
    /**
     * Type-checker pool size, mirroring `tsgo --checkers`. `undefined` leaves
     * TypeScript-Go's default; ignored when `singleThreaded` is set.
     */
    checkers?: number;
    /**
     * CLI tokens ttsc did not recognize as its own, forwarded verbatim to the
     * underlying `tsgo` invocation. This is how a tsgo flag ttsc has no first-
     * class option for (`--strict`, `--target es2020`, `--listFiles`, …) still
     * reaches the compiler: ttsc owns its own flags and lets tsgo — which has the
     * complete, arity-aware option parser — handle the rest.
     */
    passthrough?: readonly string[];
    /**
     * Override project plugin loading for this invocation.
     *
     * - `false`: ignore `compilerOptions.plugins` completely.
     * - Array: use these plugin entries instead of the project config entries.
     * - `undefined`: use the project config entries as written.
     */
    plugins?: readonly ITtscProjectPluginConfig[] | false;
}