csharplang/meetings/2020/README.md

Upcoming meetings for 2020

Schedule ASAP

• Confirm unspeakable Clone method and long-term implications (Jared/Julien)

Schedule when convenient

Recurring topics

• Triage championed features
• Triage milestones
• Design review

Jul 1, 2020

Jun 29, 2020

• https://github.com/Partydonk/partydonk/issues/1 Static interface members (Miguel, Aaron, Mads, Carol)

Jun 24, 2020

• Parameter null checking: finalize syntax
• https://github.com/dotnet/csharplang/issues/3275 Variance on static interface members (Aleksey)
• Function pointer question (Fred)

Jun 22, 2020

Record Monday (Andy, Jared, Mads), e.g.:

• Deriving between records and non-records
• Record functionality on structs
• Primary constructors on non-records

Jun 3, 2020

• allow suppression on return someBoolValue!; (issue https://github.com/dotnet/roslyn/issues/44080, Julien)
• record decision on side-effect of M(someMaybeNullValue); // warns and effect of suppression expr! (issue https://github.com/dotnet/roslyn/issues/43383, Julien)
• improving suppression in the middle of null-coalescing (https://github.com/dotnet/csharplang/issues/3393, Neal/Julien)
• init-only: should _ = new C() { readonlyField = null }; be allowed in a method on type C? (Jared/Julien)
• init-only: confirm metadata encoding (IsExternalInit modreq) with compat implications (Jared/Julien)
• init-only: init-only methods ? init void Init() (Jared/Julien)

May 18, 2020

• Record Monday (Andy, Jared, Mads)

May 11, 2020

• Record Monday (Andy, Jared, Mads)
  • https://gist.github.com/MadsTorgersen/3fb6b7461e211c8458044ad5115f2117 Primary constructors and records (Mads)

April 29, 2020

• Design review

April 22, 2020

• https://github.com/dotnet/csharplang/projects/4 Triage for C# 10.0 (Mads)

March 18, 2020

• https://github.com/jaredpar/csharplang/blob/record/proposals/recordsv3.md clone-style records (Jared)

Jan 29, 2020

• Records: drilling in to individual features (Mads)

Jan 13, 2020

• Records: Paging back in the previous proposal (Andy)

C# Language Design Notes for 2020

Overview of meetings and agendas for 2020

Jun 17, 2020

1. Null-suppression & null-conditional operator
2. parameter! syntax
3. T??

Jun 15, 2020

C# Language Design Notes for June 15, 2020

Record:

1. modreq for init accessors

2. Initializing readonly fields in same type

3. init methods

4. Equality dispatch

5. Confirming some previous design decisions

6. IEnumerable.Current

Jun 10, 2020

C# Language Design Notes for June 15, 2020

• https://github.com/dotnet/csharplang/issues/1711 Roles and extensions

Jun 1, 2020

C# Language Design Notes for June 1, 2020

Records: 1. Base call syntax 2. Synthesizing positional record members and assignments 3. Record equality through inheritance

May 27, 2020

C# Language Design Notes for May 27, 2020

Record syntax 1. Record structs? 2. Record syntax/keyword 3. Details on property shorthand syntax

March 11, 2020

C# Language Design Notes for May 11, 2020

Records

May 6, 2020

C# Language Design Notes for May 6, 2020

1. Target-typing ?: when the natural type isn't convertible to the target type.
2. Allow if (x is not string y) pattern.
3. Open issues in extension GetEnumerator
4. Args in top-level programs

May 4, 2020

C# Language Design Notes for May 4, 2020

1. Reviewing design review feedback

April 27, 2020

C# Language Design Notes for April 27, 2020

Records: positional & primary constructors

April 20, 2020

C# Language Design Notes for April 20, 2020

Records: Factories

April 15, 2020

C# Language Design Notes for April 15, 2020

1. Non-void and non-private partial methods
2. Top-level programs

April 13. 2020

C# Language Design Notes for April 13, 2020

1. Roadmap for records
2. Init-only properties

April 8, 2020

C# Language Design Notes for April 8, 2020

1. e is dynamic pure null check
2. Target typing ?:
3. Inferred type of an or pattern
4. Module initializers

April 6, 2020

C# Language Design Notes for April 6, 2020

1. Record Monday: Init-only members

April 1, 2020

C# Language Design Notes for April 1, 2020

1. Function pointer design adjustments

2. field keyword in properties

March 30, 2020

1. Record Monday

C# Language Design Notes for March 30, 2020

March 25, 2020

C# Language Design Notes for March 25, 2020

1. Open issues with native int

2. Open issues with target-typed new

March 23, 2020

C# Language Design Notes for March 23, 2020

1. Triage
2. Builder-based records

March 9, 2020

C# Language Design Notes for March 9, 2020

1. Simple programs

2. Records

Feb 26, 2020

C# Language Design Notes for Feb. 26, 2020

Design Review

Feb 24

C# Language Design Notes for Feb. 24, 2020

Taking another look at "nominal" records

Feb 19

C# Language Design Notes for Feb. 19, 2020

State-based value equality

Feb 12

C# Language Design Notes for Feb. 12, 2020

Records

Feb 10

C# Language Design Notes for Feb. 10, 2020

Records

Feb 5

C# Language Design Notes for Feb. 5, 2020

• Nullability of dependent calls (Chuck, Julien)
• https://github.com/dotnet/csharplang/issues/3137 Records as individual features (Mads)

Feb 3

C# Language Design Notes for Feb. 3, 2020

Value Equality

Jan 29, 2020

C# Language Design Notes for Jan. 29, 2020

Records: "With-ers"

Jan 22, 2020

C# Language Design Notes for Jan 22, 2020

1. Top-level statements and functions
2. Expression Blocks

Jan 15, 2020

C# Language Design Notes for Jan 15, 2020

Records

1. "programming with data"
2. Decomposing subfeatures of records

Jan 8, 2020

C# Language Design Notes for Jan 8, 2020

1. Unconstrained type parameter annotation
2. Covariant returns

Jan 6, 2020

C# Language Design Notes for Jan 6, 2020

1. Use attribute info inside method bodies
2. Making Task-like types covariant for nullability
3. Casting to non-nullable reference type
4. Triage