What is member level at surface look?

[bravequickcleverfibreyarn]

Type of issue

Typo

Description

From https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/partial-member,

A partial member has one declaring declaration and often one implementing declaration. The declaring declaration doesn't include a body. The implementing declaration provides the body of the member.

This guidelines is technically right. Since setter and getter is "decoupled" by compilation, but I think by member is usually meant property/indexer as whole. Close this straightly if I am wrong.

As top surface property/indexer has body. What does not have body are accessors.

// declarations, no body on accessors
// declaring property/indexer w/o body =  Error CS0548 'Class.Member': property or indexer must have at least one accessor	
// only methods are body-less
internal partial class Test
{
    public partial int this[int i] { get; set; }
    public partial int GetterOnly { get; }
    public partial int SetterOnly { set; }
    public partial int Both { set; get; }
    partial void AAA();
    private partial void BBB();
}

internal partial class Test
{
    // implementations, accessors with body
    public partial int this[int i] { get => 9; set { } }
    public partial int GetterOnly { get => 1; }
    public partial int SetterOnly { set { } }
    public partial int Both { set { } get => 7; }
    private partial void BBB() { }
}

Page URL

https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/partial-member

Content source URL

https://github.com/dotnet/docs/blob/main/docs/csharp/language-reference/keywords/partial-member.md

Document Version Independent Id

85bf7eb0-b476-94b6-e10a-d0f42fee407b

Article author

@BillWagner

Metadata

• ID: b4eedbc9-36be-6c79-fcb4-d5fe6998e5b1
• Service: dotnet-csharp
• Sub-service: lang-reference

[BillWagner]

Hi @bravequickcleverfibreyarn

In this instance, I think the current language is clear, and reasonably concise. The "declaring declaration" defines which accessors must be implemented (get, set, or both). The "implementing declaration" must implement the same set. (Even that kind of fudges it because init could be used in place of set.)

I'll close this, but I'll keep watching for other potential confusion.

[bravequickcleverfibreyarn]

Okay. I agree. Thanks for clarification.