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33 lines
1.0 KiB
33 lines
1.0 KiB
3 years ago
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/* eslint-disable no-restricted-syntax */
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const isProduction: boolean = process.env.NODE_ENV === 'production';
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const prefix = 'Invariant failed';
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export class RbdInvariant extends Error {}
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RbdInvariant.prototype.toString = function toString() {
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return this.message;
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};
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// A copy-paste of tiny-invariant but with a custom error type
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// Throw an error if the condition fails
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export function invariant(condition: false, message?: string): never;
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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export function invariant(condition: any, message?: string): asserts condition;
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export function invariant(
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condition: unknown,
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message?: string,
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): asserts condition {
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if (condition) {
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return;
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}
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if (isProduction) {
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// In production we strip the message but still throw
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throw new RbdInvariant(prefix);
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} else {
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// When not in production we allow the message to pass through
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// *This block will be removed in production builds*
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throw new RbdInvariant(`${prefix}: ${message || ''}`);
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}
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}
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