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void type allowed in type definitions, use leads to compiler error #19335

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SirOlaf opened this issue Jan 6, 2022 · 0 comments
Open

void type allowed in type definitions, use leads to compiler error #19335

SirOlaf opened this issue Jan 6, 2022 · 0 comments

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@SirOlaf
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SirOlaf commented Jan 6, 2022 •
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For some reason it is possible to use the void type for object fields. It is impossible to initialize, but using it as a type on var works. An attempt to use it will result in a compiler error.

Example:

type
  MyType = object
    a: void

var o: MyType
o.a

Output:

Error: internal error: genRecordField 3 MyType
@SirOlaf SirOlaf changed the title void type allowed in type definitions void type allowed in type definitions, use leads to compiler crash Oct 20, 2022
@SirOlaf SirOlaf changed the title void type allowed in type definitions, use leads to compiler crash void type allowed in type definitions, use leads to compiler error Oct 20, 2022
@SirOlaf SirOlaf mentioned this issue Oct 20, 2022
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fix #19335 Disallow void in type section SirOlaf/Nim
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@SirOlaf