| 1 | /**
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| 2 | * This file and its contents are due to an issue in TypeScript (affecting *at least* up to 4.1) which causes type
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| 3 | * elision to break during emit for nodes which have been transformed. Specifically, if the 'original' property is set,
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| 4 | * elision functionality no longer works.
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| 5 | *
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| 6 | * This results in module specifiers for types being output in import/export declarations in the compiled *JS files*
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| 7 | *
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| 8 | * The logic herein compensates for that issue by recreating type elision separately so that the transformer can update
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| 9 | * the clause with the properly elided information
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| 10 | *
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| 11 | * Issues:
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| 12 | * @see https://github.com/microsoft/TypeScript/issues/40603
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| 13 | * @see https://github.com/microsoft/TypeScript/issues/31446
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| 14 | *
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| 15 | * @example
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| 16 | * // a.ts
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| 17 | * export type A = string
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| 18 | * export const B = 2
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| 19 | *
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| 20 | * // b.ts
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| 21 | * import { A, B } from './b'
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| 22 | * export { A } from './b'
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| 23 | *
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| 24 | * // Expected output for b.js
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| 25 | * import { B } from './b'
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| 26 | *
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| 27 | * // Actual output for b.js
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| 28 | * import { A, B } from './b'
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| 29 | * export { A } from './b'
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| 30 | */
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| 31 | import { ImportOrExportDeclaration, VisitorContext } from "../types";
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| 32 | import { ExportDeclaration, ImportDeclaration } from "typescript";
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| 33 | /**
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| 34 | * Get import / export clause for node (replicates TS elision behaviour for js files)
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| 35 | * See notes in get-import-export-clause.ts header for why this is necessary
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| 36 | *
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| 37 | * @returns import or export clause or undefined if it entire declaration should be elided
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| 38 | */
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| 39 | export declare function elideImportOrExportClause<T extends ImportOrExportDeclaration>(context: VisitorContext, node: T): (T extends ImportDeclaration ? ImportDeclaration["importClause"] : ExportDeclaration["exportClause"]) | undefined;
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