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Mark unused @template type parameter #25595

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ghost opened this issue Jul 12, 2018 · 1 comment
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Mark unused @template type parameter #25595

ghost opened this issue Jul 12, 2018 · 1 comment
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Suggestion An idea for TypeScript
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TypeScript 3.1

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@ghost
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ghost commented Jul 12, 2018

TypeScript Version: 3.0.0-dev.20180711

Code

/**
 * @template U
 * @typedef {number} T
 */

Expected behavior:

U marked unused.

Actual behavior:

No error.
@ghost ghost added the Suggestion An idea for TypeScript label Jul 12, 2018
@ghost ghost self-assigned this Jul 12, 2018
@mhegazy mhegazy added this to the TypeScript 3.1 milestone Jul 12, 2018
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ghost commented Jul 18, 2018 •
edited by ghost
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We already give the diagnostic, I just didn't see it because it only covers U and not @template. The error span will incidentally be expanded in #25748 to support the codefix deleting @template.

@ghost ghost closed this as completed Jul 18, 2018
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