6.4 KiB
Upcoming meetings for 2019
Schedule ASAP
- Confirm whether we want
abstract
modifier to be implied for interface implementations inside derived interfaces unless there is an implementation. There is no legacy behavior around that in interfaces, i.e. there is no existing code with declarations like that. Also, this could confuse users thatint I1.P1 {get; set;}
is an actual implementation of a property rather than a re-abstraction (what it would be ifabstract
was implied), because this is what it means in a class/struct.
Schedule when convenient
- async LINQ (Julien)
- Syntax of positional records/primary constructors (Andy)
- Discussion of refreshing language spec (Neal)
- Conceptual model for tuples (Mads, Neal)
- Close on flag for warning waves (existing
/warn
or new/warnVersion
?)
Recurring topics
- Triage championed features
- Triage milestones
- Design review
Jun 19, 2019
Jun 17, 2019
Jun 12, 2019
May 1, 2019
- Nullable attributes - continue discussion
- Nullable opt-in - do we need to adjust the story?
C# Language Design Notes for 2019
Overview of meetings and agendas for 2019
May 15, 2019
C# Language Design Notes for May 15, 2019
- Close on nullable attributes (Mads and Steve)
May 13, 2019
C# Language Design Notes for May 13, 2019
- Close on desired rules for warning suppressions and
#nullable
interacting
Apr 29, 2019
C# Language Design Notes for Apr 29, 2019
- Default interface implementations and
base()
calls - Async iterator cancellation
- Attributes on local functions
Apr 24, 2019
C# Language Design Notes for Apr 24, 2019
MaybeNull and related nullable reference type attributes
Apr 22, 2019
C# Language Design Notes for Apr 22, 2019
- Inferred nullable state from a finally block
- Implied constraint for a type parameter of a partial?
- Target-typed switch expression
- DefaultCancellationAttribute and overriding/hiding/interface implementation
Apr 15, 2019
C# Language Design Notes for Apr 15, 2019
- CancellationToken in iterators
- Implied nullable constraints in nullable disabled code
- Inheriting constraints in nullable disabled code
- Declarations with constraints declared in #nullable disabled code
- Result type of
??=
expression - Use annotation context to compute the annotations?
- Follow-up decisions for pattern-based Index/Range
Apr 3, 2019
C# Language Design Notes for Apr 3, 2019
- Ambiguous implementations/overrides with generic methods and NRTs
- NRT and
dynamic
Apr 1, 2019
C# Language Design Notes for Apr 1, 2019
-
Pattern-based Index/Range translation
-
Default interface implementations: Is object.MemberwiseClone() accessible in an interface?
Mar 27, 2019
C# Language Design Notes for Mar 27, 2019
-
Switch expression syntax
-
Default interface implementations
-
Reabstraction
-
Explicit interface abstract overrides in classes
-
object.MemberwiseClone()
-
static int P {get; set}
semantics -
partial
on interface methods
-
-
?
on unconstrained generic paramT
Mar 25, 2019
C# Design Review Notes for Mar 25, 2019
We brought in the design review team to look at some of our recent and open decisions in C# LDM.
- Nullable reference types: shipping annotations
- Pattern-based indexing with
Index
andRange
- Cancellation tokens in async streams
Mar 19, 2019
C# Language Design Notes for March 19, 2019
We held a live LDM during the MVP summit with some Q&A about C# 8 and the future
Topics:
- Records
- "Extension interfaces"/roles
- Macros
- IAsyncEnumerable
- "Partially automatic" properties
- More integration with reactive extensions
Mar 13, 2019
C# Language Design Notes for March 13, 2019
- Interface "reabstraction" with default interface implementations
- Precedence of the switch expression
or
keyword in patterns- "Pure" null tests and the switch statement/expression
Mar 6, 2019
C# Language Design Notes for March 6th, 2019
- Pure checks in the switch expression
- Nullable analysis of unreachable code
- Warnings about nullability on expressions with errors
- Handling of type parameters that cannot be annotated
- Should anonymous type fields have top-level nullability?
- Element-wise analysis of tuple conversions
Mar 4, 2019
C# Language Design Notes for March 4, 2019
- Nullable user studies
- Interpolated string and string.Format optimizations
Feb 27, 2019
C# Language Design Notes for Feb 27, 2019
- Allow ObsoleteAttribute on property accessors
- More Default Interface Member questions
Feb 25, 2019
C# Language Design Notes for Feb 25, 2019
- Open issues in default interface methods (https://github.com/dotnet/csharplang/issues/406).
- Base calls
- We currently have open issues around
protected
,internal
, reabstraction, andstatic
fields among others.
Feb 20, 2019
C# Language Design Notes for Feb 20, 2019
- Nullable Reference Types: Open LDM Issues https://github.com/dotnet/csharplang/issues/2201
Feb 13, 2019
C# Language Design Notes for Feb 13, 2019
- Nullable Reference Types: Open LDM Issues https://github.com/dotnet/csharplang/issues/2201
Jan 23, 2019
C# Language Design Notes for Jan 23, 2019
Function pointers (Updated proposal)
Jan 16, 2019
C# Language Design Notes for Jan 16, 2019
- Shadowing in lambdas
- Pattern-based disposal in
await foreach
Jan 14, 2019
C# Language Design Notes for Jan 14, 2019
- Generating null-check for
parameter!
https://github.com/dotnet/csharplang/pull/2144
Jan 9, 2019
C# Language Design Notes for Jan 9, 2019
- GetAsyncEnumerator signature
- Ambiguities in nullable array type syntax
- Recursive Patterns Open Language Issues https://github.com/dotnet/csharplang/issues/2095
Jan 7, 2019
C# Language Design Notes for Jan 7, 2019
Nullable:
- Variance in overriding/interface implementation
- Breaking change in parsing array specifiers