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Enums erroneously removed from unions by type guards #5439

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weswigham opened this issue Oct 28, 2015 · 1 comment
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Enums erroneously removed from unions by type guards #5439

weswigham opened this issue Oct 28, 2015 · 1 comment
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Bug A bug in TypeScript Fixed A PR has been merged for this issue
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TypeScript 1.8

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@weswigham
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enum E {}
enum V {}

var x: number|E|V;

if (typeof x === "number") {
    x; // Should be number|E|V, but is just number
}
@mhegazy mhegazy added the Bug A bug in TypeScript label Oct 28, 2015
@weswigham weswigham mentioned this issue Oct 30, 2015
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@weswigham
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Fixed by #5442.

@mhegazy mhegazy added this to the TypeScript 1.8 milestone Nov 11, 2015
@mhegazy mhegazy assigned weswigham and unassigned sandersn Nov 11, 2015
@mhegazy mhegazy added the Fixed A PR has been merged for this issue label Nov 11, 2015
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