vite-plugin-react-server/dist/plugin/transformer/transformerEnv.js

Vite plugin for React Server Components (RSC)

export function getEnvName(raw) {
    const v = (raw || "").toLowerCase();
    return v === "client" || v === "server" || v === "ssr" ? v : "";
}
export function isEnvAllowed(allowed, envName) {
    return !!envName && allowed.includes(envName);
}
export function isServerTransform(name) {
    return name === "server";
}
export function shouldApplyTransformer(allowed, envName) {
    return isEnvAllowed(allowed, envName);
}
export function shouldTransformModule(opts) {
    const { name, ssr, envName, allowed, id, modulePattern } = opts;
    // env not allowed → skip
    if (!isEnvAllowed(allowed, envName))
        return false;
    // server transform only in SSR
    if (isServerTransform(name) && !ssr)
        return false;
    // module pattern mismatch → skip
    if (!modulePattern.test(id))
        return false;
    return true;
}