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Allow record's parameter_list to be empty. #3900

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merged 4 commits into from
Sep 18, 2020
Merged

Allow record's parameter_list to be empty. #3900

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e263795
Merge from dotnet/csharplang
AlekseyTs Jun 8, 2020
3581dd1
Merge pull request #5 from dotnet/master
AlekseyTs Sep 16, 2020
93b7e8f
Allow record's `parameter_list` to be empty.
AlekseyTs Sep 16, 2020
412a453
Clarify that "Deconstruct" method is not generated unless there is at…
AlekseyTs Sep 17, 2020
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3 changes: 1 addition & 2 deletions proposals/csharp-9.0/records.md
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Expand Up @@ -27,7 +27,6 @@ record_body
Record types are reference types, similar to a class declaration. It is an error for a record to provide
a `record_base` `argument_list` if the `record_declaration` does not contain a `parameter_list`.
At most one partial type declaration of a partial record may provide a `parameter_list`.
It is an error for a `parameter_list` to be empty.

Record parameters cannot use `ref`, `out` or `this` modifiers (but `in` and `params` are allowed).

Expand Down Expand Up @@ -385,7 +384,7 @@ For a record:

### Deconstruct

A positional record synthesizes a public void-returning instance method called Deconstruct with an out
A positional record with at least one parameter synthesizes a public void-returning instance method called Deconstruct with an out
parameter declaration for each parameter of the primary constructor declaration. Each parameter
of the Deconstruct method has the same type as the corresponding parameter of the primary
constructor declaration. The body of the method assigns each parameter of the Deconstruct method
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