next
Version:
The React Framework
99 lines (98 loc) • 3.58 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.execOnce = execOnce;
exports.getLocationOrigin = getLocationOrigin;
exports.getURL = getURL;
exports.getDisplayName = getDisplayName;
exports.isResSent = isResSent;
exports.normalizeRepeatedSlashes = normalizeRepeatedSlashes;
exports.loadGetInitialProps = loadGetInitialProps;
exports.ST = exports.SP = exports.warnOnce = void 0;
function execOnce(fn) {
let used = false;
let result;
return (...args)=>{
if (!used) {
used = true;
result = fn(...args);
}
return result;
};
}
function getLocationOrigin() {
const { protocol , hostname , port } = window.location;
return `${protocol}//${hostname}${port ? ':' + port : ''}`;
}
function getURL() {
const { href } = window.location;
const origin = getLocationOrigin();
return href.substring(origin.length);
}
function getDisplayName(Component) {
return typeof Component === 'string' ? Component : Component.displayName || Component.name || 'Unknown';
}
function isResSent(res) {
return res.finished || res.headersSent;
}
function normalizeRepeatedSlashes(url) {
const urlParts = url.split('?');
const urlNoQuery = urlParts[0];
return urlNoQuery// first we replace any non-encoded backslashes with forward
// then normalize repeated forward slashes
.replace(/\\/g, '/').replace(/\/\/+/g, '/') + (urlParts[1] ? `?${urlParts.slice(1).join('?')}` : '');
}
async function loadGetInitialProps(App, ctx) {
if (process.env.NODE_ENV !== 'production') {
var ref;
if ((ref = App.prototype) === null || ref === void 0 ? void 0 : ref.getInitialProps) {
const message = `"${getDisplayName(App)}.getInitialProps()" is defined as an instance method - visit https://nextjs.org/docs/messages/get-initial-props-as-an-instance-method for more information.`;
throw new Error(message);
}
}
// when called from _app `ctx` is nested in `ctx`
const res = ctx.res || ctx.ctx && ctx.ctx.res;
if (!App.getInitialProps) {
if (ctx.ctx && ctx.Component) {
// @ts-ignore pageProps default
return {
pageProps: await loadGetInitialProps(ctx.Component, ctx.ctx)
};
}
return {};
}
const props = await App.getInitialProps(ctx);
if (res && isResSent(res)) {
return props;
}
if (!props) {
const message = `"${getDisplayName(App)}.getInitialProps()" should resolve to an object. But found "${props}" instead.`;
throw new Error(message);
}
if (process.env.NODE_ENV !== 'production') {
if (Object.keys(props).length === 0 && !ctx.ctx) {
console.warn(`${getDisplayName(App)} returned an empty object from \`getInitialProps\`. This de-optimizes and prevents automatic static optimization. https://nextjs.org/docs/messages/empty-object-getInitialProps`);
}
}
return props;
}
let warnOnce = (_)=>{};
exports.warnOnce = warnOnce;
if (process.env.NODE_ENV !== 'production') {
const warnings = new Set();
exports.warnOnce = warnOnce = (msg)=>{
if (!warnings.has(msg)) {
console.warn(msg);
}
warnings.add(msg);
};
}
const SP = typeof performance !== 'undefined';
exports.SP = SP;
const ST = SP && typeof performance.mark === 'function' && typeof performance.measure === 'function';
exports.ST = ST;
class DecodeError extends Error {
}
exports.DecodeError = DecodeError;
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