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{"version":3,"file":"when.js","sources":["../../../src/directives/when.ts"],"sourcesContent":["/**\n * @license\n * Copyright 2021 Google LLC\n * SPDX-License-Identifier: BSD-3-Clause\n */\n\n/**\n * When `condition` is true, returns the result of calling `trueCase()`, else\n * returns the result of calling `falseCase()` if `falseCase` is defined.\n *\n * This is a convenience wrapper around a ternary expression that makes it a\n * little nicer to write an inline conditional without an else.\n *\n * @example\n *\n * ```ts\n * render() {\n * return html`\n * ${when(this.user, () => html`User: ${this.user.username}`, () => html`Sign In...`)}\n * `;\n * }\n * ```\n */\nexport function when<T, F>(\n condition: true,\n trueCase: () => T,\n falseCase?: () => F\n): T;\nexport function when<T, F = undefined>(\n condition: false,\n trueCase: () => T,\n falseCase?: () => F\n): F;\nexport function when<T, F = undefined>(\n condition: unknown,\n trueCase: () => T,\n falseCase?: () => F\n): T | F;\nexport function when(\n condition: unknown,\n trueCase: () => unknown,\n falseCase?: () => unknown\n): unknown {\n return condition ? trueCase() : falseCase?.();\n}\n"],"names":[],"mappings":"AAAA;;;;AAIG;SAkCa,IAAI,CAClB,SAAkB,EAClB,QAAuB,EACvB,SAAyB,EAAA;AAEzB,IAAA,OAAO,SAAS,GAAG,QAAQ,EAAE,GAAG,SAAS,KAAT,IAAA,IAAA,SAAS,KAAT,KAAA,CAAA,GAAA,KAAA,CAAA,GAAA,SAAS,EAAI,CAAC;AAChD;;;;"}
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