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Microseconds are lost when creating DateTime.parse or DateTime.fromMicrosecondsSinceEpoch

11

As mentioned in the title and as shown in the example below: ```dart main() { final datetimeParsed = DateTime.parse('2021-02-05T22:37:12.933232+00:00'); final datetimeMS = DateTime.fromMicrosecondsSinceEpoch(1612564632933232); print(datetimeParsed.toIso8601String()); // prints 2021-02-05T22:37:12.933Z print(datetimeMS.toUtc().toIso8601String()); // prints...

osaxma

**Repro** - debug the following dart code - set a breakpoint on `// Breakpoint here` line - step in once - hover over `super.key` Expected: `null` Actual: `ChromeProxyService: Failed to...

annagrin

Flutter module currently contains 286 libraries, and we emit all of their summaries in `emitModule` for each expression compilation in expression compiler service (but not in the frontend server). Can...

annagrin

proposed breaking change to dart:ffi: stop reifying Pointer<T>

3

I propose we stop reifying underlying element type for `Pointer` objects in preparation to unboxing pointer or migrating FFI to views. I am filing this issue for discussion. Currently `Pointer`...

mraleph

Currently, users can write interop classes and call synthetic constructors and they will hit no checks. In the Wasm case, generative constructors are a pain point, so a synthetic constructor...

srujzs

Failures on change: [ddc] Add non-null assertions when setting fields

1

There are new test failures on [[ddc] Add non-null assertions when setting fields](https://dart-review.googlesource.com/c/sdk/+/258220). The tests ``` language/nnbd/null_assertions/parameter_checks_fields_and_setters_test RuntimeError (expected Pass) ``` are failing on configurations ``` dart2js-hostasserts-weak-linux-x64-d8 ``` I added...

nshahan

Some analysis_server tests produce invalid analysis_options.yaml files due to passing an empty list for experiments instead of null.

5

While working on [352220](https://dart-review.googlesource.com/c/sdk/+/352220), I came a cross a case where an invalid `analysis_options.yaml` was produced from some tests (namely: [remove_break_test.dart](https://github.com/dart-lang/sdk/blob/main/pkg/analysis_server/test/src/services/correction/fix/remove_break_test.dart)). It seems that the `setUp` function is passing an...

osaxma

"foo ?? throw" leads to really confusing error messages

2

Due to precedence rules, if you use `throw` on the right hand side of an `??` operator you need to wrap it in parentheses. Unfortunately, if you don't, the analyzer...

Hixie

[vm/ffi] Allow extension types that implement `NativeType`s in FFI type arguments

8

Currently, we cannot use extension types that implement `NativeType`s as type arguments in FFI. Given that extension types do not exist at runtime, I cannot find any reason why this...

halildurmus

jit compiler produces erroneous runtime optimizations on large applications

5

## TLDR Amount of classes somehow trigger bugs in runtime jit optimizations, particularly [disabling of Inliner](https://github.com/2ZeroSix/sdk/commit/ce876c2ee664fd55252c6c7625b38772fb4f8b81) fixed the problem for both our internal codebase and generated example. might be related...

2ZeroSix