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14 lines
386 B
TypeScript
14 lines
386 B
TypeScript
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/** @file Debug-only functions, injected or stripped by the build tool as appropriate. */
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/** The logger used by {@link assert}. */
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interface Logger {
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error: (message: string) => void
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}
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/** Logs an error . */
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export function assert(invariant: boolean, message: string, logger: Logger = console) {
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if (!invariant) {
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logger.error('assertion failed: ' + message)
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}
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}
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