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class NotImplementedError extends Error {
code: string;
constructor(feature: string, issue?: number) {
super(
feature +
" is not yet implemented in Bun." +
(issue ? " Track the status & thumbs up the issue: https://github.com/oven-sh/bun/issues/" + issue : ""),
);
this.name = "NotImplementedError";
this.code = "ERR_NOT_IMPLEMENTED";
// in the definition so that it isn't bundled unless used
hideFromStack(NotImplementedError);
}
}
function throwNotImplemented(feature: string, issue?: number): never {
// in the definition so that it isn't bundled unless used
hideFromStack(throwNotImplemented);
throw new NotImplementedError(feature, issue);
}
function hideFromStack(...fns) {
for (const fn of fns) {
Object.defineProperty(fn, "name", {
value: "::bunternal::",
});
}
}
/**
* This utility ensures that old JS code that uses functions for classes still works.
* Taken from https://github.com/microsoft/vscode/blob/main/src/vs/workbench/api/common/extHostTypes.ts
*/
function es5ClassCompat(target: Function): any {
const interceptFunctions = {
apply: function () {
const args = arguments.length === 1 ? [] : arguments[1];
return Reflect.construct(target, args, arguments[0].constructor);
},
call: function () {
if (arguments.length === 0) {
return Reflect.construct(target, []);
} else {
const [thisArg, ...restArgs] = arguments;
return Reflect.construct(target, restArgs, thisArg.constructor);
}
},
};
return Object.assign(target, interceptFunctions);
}
export default {
NotImplementedError,
throwNotImplemented,
hideFromStack,
es5ClassCompat,
};
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