@aws-amplify/analytics/dist/esm/utils/peekCtxArgs.mjs

Analytics category of aws-amplify

import { isAmplifyContext } from '@aws-amplify/core';

// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
/**
 * Non-destructively inspects a public-API arguments array and separates the
 * optional leading {@link AmplifyContext} from the API input.
 *
 * Unlike core's `resolveCtxArgs`, this helper deliberately does NOT fall back
 * to the global context — `ctx` stays `undefined` when no explicit context was
 * supplied. Callers (e.g. `configureAutoTrack`) that only need the context at
 * emit time use this so the global context is resolved lazily: resolving it
 * eagerly would (a) throw when trackers are configured before
 * `Amplify.configure()` and (b) pin auto-tracked events to the configuration
 * snapshot captured at setup time after a later `configure()` call.
 *
 * @param args The raw arguments array of an overloaded public API.
 *
 * @returns `{ ctx?, input }` — `ctx` is set only when the first argument is a
 * branded `AmplifyContext`; `input` is the argument that follows it (or the
 * first argument when no context was passed).
 *
 * @internal
 */
function peekCtxArgs(args) {
    return isAmplifyContext(args[0])
        ? { ctx: args[0], input: args[1] }
        : { ctx: undefined, input: args[0] };
}

export { peekCtxArgs };
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