Make undefined valid as a type name #5387
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As I understand user defined |
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i wonder if we should disallow this to enable a built-in |
| @@ -14885,7 +14885,9 @@ namespace ts { | |||
| getSymbolLinks(undefinedSymbol).type = undefinedType; | |||
| getSymbolLinks(argumentsSymbol).type = getGlobalType("IArguments"); | |||
| getSymbolLinks(unknownSymbol).type = unknownType; | |||
| globals[undefinedSymbol.name] = undefinedSymbol; | |||
| if (!globals[undefinedSymbol.name]) { | |||
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I agree with @mhegazy and I don't think this is the appropriate fix. The idea right now is that the compiler anticipates using the We should be disallowing |
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Alright. |
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Fixes #3087.
If the user introduces a global named
undefinedwe no longer attempt to add theundefinedbuiltin to the global table - the user's type overrides it.