csharplang/meetings/2019/README.md

# Upcoming meetings for 2019

## Schedule ASAP

## Schedule when convenient

- Discussion of refreshing language spec (Neal)
- Allowing pattern-based `foreach` and `await foreach` to bind to an extension `GetEnumerator`/`GetAsyncEnumerator` and `MoveNext`/`MoveNextAsync` (Julien/Chris)
- Making a `CancellationToken` available in async-iterator method bodies; possibly reserving a keyword (Julien/Stephen) 
- Syntax of positional records/primary constructors (Andy)
- Nullable sidecar files (Immo)
- Nullable Reference Types: Open LDM Issues https://github.com/dotnet/csharplang/issues/2201

## Recurring topics

- *Triage championed features*
- *Triage milestones*
- *Design review*

## Mar 27, 2019

## Mar 25, 2019

- *Design review*

## Mar 13, 2019

## Mar 6, 2019

- ~~Nullable sidecar files (Immo)~~
- Nullable Reference Types: Open LDM Issues https://github.com/dotnet/csharplang/issues/2201

## Mar 4, 2019

- Nullable user studies (Phillip Carter)
- Interpolated string optimizations (Jared, Jeremy Kuhne)

## Feb 27, 2019

- Triage [#2152](https://github.com/dotnet/csharplang/issues/2152): "Allow Obsolete attribute on getters and setters"
- Open issues in recursive pattern-matching https://github.com/dotnet/csharplang/issues/2095

# C# Language Design Notes for 2019

Overview of meetings and agendas for 2019

## Feb 25, 2019

[C# Language Design Notes for Feb 20, 2019](LDM-2019-02-25.md)

- Open issues in default interface methods (https://github.com/dotnet/csharplang/issues/406). 
    - Base calls
    - We currently have open issues around `protected`, `internal`, reabstraction, and `static` fields among others.

## Feb 20, 2019

[C# Language Design Notes for Feb 20, 2019](LDM-2019-02-20.md)

- Nullable Reference Types: Open LDM Issues https://github.com/dotnet/csharplang/issues/2201

## Feb 13, 2019

[C# Language Design Notes for Feb 13, 2019](LDM-2019-02-13.md)

- Nullable Reference Types: Open LDM Issues https://github.com/dotnet/csharplang/issues/2201

## Jan 23, 2019

[C# Language Design Notes for Jan 23, 2019](LDM-2019-01-23.md)

Function pointers ([Updated proposal](https://github.com/dotnet/csharplang/blob/master/proposals/function-pointers.md))

## Jan 16, 2019

[C# Language Design Notes for Jan 16, 2019](LDM-2019-01-16.md)

1. Shadowing in lambdas
2. Pattern-based disposal in `await foreach`

## Jan 14, 2019

[C# Language Design Notes for Jan 14, 2019](LDM-2019-01-14.md)

- Generating null-check for `parameter!`
https://github.com/dotnet/csharplang/pull/2144

## Jan 9, 2019

[C# Language Design Notes for Jan 9, 2019](LDM-2019-01-09.md)

1. GetAsyncEnumerator signature
2. Ambiguities in nullable array type syntax
2. Recursive Patterns Open Language Issues https://github.com/dotnet/csharplang/issues/2095

## Jan 7, 2019

[C# Language Design Notes for Jan 7, 2019](LDM-2019-01-07.md)

Nullable:

1. Variance in overriding/interface implementation
2. Breaking change in parsing array specifiers