"DDC" is now the accepted name for the module system.
Change-Id: I655219ccc7cff7ff99b1311518ef6ed6e7d1b2a6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/348085
Reviewed-by: Jake Macdonald <jakemac@google.com>
Commit-Queue: Mark Zhou <markzipan@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Classes were mistakenly being formatted by the function formatter.
Change-Id: I6c513803c7c211f02bb9267914b5988cd6c02c5e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/334005
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Ensures that `toString()` of types that contain embedded js types
will appear the same in the old and new runtime type systems.
Issue: https://github.com/dart-lang/sdk/issues/48585
Change-Id: I71ec0e13943281e745bcf05e10aa36d093cbc0c3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/334003
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Srujan Gaddam <srujzs@google.com>
This CL introduces StructuralParameter and StructuralParameterType
classes. They are intended to replace TypeParameter and
TypeParameterType respectively where those were used as type
parameters defined by FunctionTypes. Previously, type parameters of
FunctionTypes were represented by TypeParameter objects with the
‘parent’ field set to null. By introducing StructuralParameter and
StructuralParameterType this CL unambiguously separates the two
notions of type parameters.
TEST=existing
Change-Id: Ida3feb7ad96a7b2acef55840eacba9e36bf2a3e7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/312264
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Commit-Queue: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Mayank Patke <fishythefish@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Update the format of the shape keys to better match the format used in
the dart:_rti library. This change applies to the current runtime type
system as well.
Change-Id: I87d2af2aaf2b9dbe012fae60a64718d264a3a18c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/295721
Reviewed-by: Mayank Patke <fishythefish@google.com>
Reviewed-by: Mark Zhou <markzipan@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Since we lower @staticInterop members differently, CFE expectations are
updated. A previous patchset updated tests to account for changes in
top-level external members, but those changes are now non-breaking.
This CL still keeps some of those fixes to tests since they are more
sound and correct:
- Debugger tests to allowInterop a function that wasn't caught before,
as DDC only adds checks for arguments whose static type is a Function,
whereas js_util does a runtime is check to determine if the argument is
a Function
- Interop tests that typed top-level externals unsoundly
- Interop tests that used tear-offs of top-level external methods
instead of getters
Change-Id: I46a5a1316db1dba38691efece075f9c34ac4b4e0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/277660
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Fixes https://github.com/dart-lang/sdk/issues/46967
Creates classes for non-external factories and static members, and
modifies invocations to point to these members instead. Tear-offs of
interop constructors (external or otherwise) are now supported since
they're just non-external static methods.
Change-Id: Id754fb4bc872051a8df4169aefd4bdc078452fb5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/270501
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Commit-Queue: Srujan Gaddam <srujzs@google.com>
This reverts commit 69f32d6ad7.
Reason for revert: We seem to have a number of tests failing with timeouts in CBUILD after this change, please see logs at
69f32d6ad7
Original change's description:
> Refactor `_Future`.
>
> This is a major rewrite of the `_Future` class,
> which is the default implementation of the `Future` interface.
>
> The main goal was to reduce the number of expensive type checks
> in the internal passing around of data.
> Expensive type checks are things like
> * `is _Future<T>` (more expensive than just `is _Future`, the latter
> can be a single class-ID check.
> * Covariant generic parameter checks (using `T` covariantly in a
> parameter forces a run-time type check).
>
> Also removed some plain unnecessary casts and turned some
> implicit casts from `dynamic` into `unsafeCast`s.
>
> This seems to be an success, at least on very primitive benchmarks, according to Golem:
> FutureCatchErrorTest 41.22% (1.9 noise)
> FutureValueTest 46.51% (2.8 noise)
> EmptyFutureTest 59.15% (3.1 noise)
> FutureWhenCompleteTest 51.10% (3.2 noise)
>
> A secondary goal was to clean up a very old and messy class,
> and make it clearer for other `dart:async` how to interact
> with the future.
>
> The change has a memory cost: The `_FutureListener<S,T>` class,
> which represents a `then`, `catchError` or `whenComplete`
> call on a `_Future`, now contains a reference to its source future,
> the one which provides the inputs to the callbacks,
> as well as the result future returned by the call.
> That's one extra memory slot per listener.
>
> In return, the `_FutureListener` now does not need to
> get its source future as an argument, which needs a covariant
> generic type check, and the methods of `_Future` can be written
> in a way which ignores the type parameters of both `_Future`
> and `_FutureListener`, which reduces complex type checks
> significantly.
>
> In general, typed code is in `_FutureListener`, which knows both
> the source and target types of the listener callbacks, and which
> contains the futures already at that type, so no extra type checking
> is needed.
> The `_Future` class is mostly untyped, except for its "public"
> API, called by other classes, which checks inputs,
> and code interacting with non-native futures.
> Invariants ensure that only correctly typed values
> are stored in the untyped shared `_resultOrListeners` field
> on `_Future`, as determined by its `_state` integer.
> (This was already partially true, and has simply been made
> more consistent.)
>
> Further, we now throw an error in a situation that was previously
> unhandled: When a `_Future` is completed with *itself*.
> That would ensure that the future would never complete
> (it waits for itself to complete before it can complete),
> and may potentially have caused weird loops in the representation.
> In practice, it probably never happens. Now it makes the error
> fail with an error.
> Currently a private `_FutureCyclicDependencyError` which presents
> as an `UnsupportedError`.
> That avoids code like
> ```dart
> import "dart:async";
> void main() {
> var c = Completer();
> c.complete(c.future); // bad.
> print("well!");
> var d = Completer();
> d.complete(c.future);
> print("shucks!");
> }
> ```
> from hanging the runtime by busily searching for the end of a cycle.
>
> See https://github.com/dart-lang/sdk/issues/48225
> Fixes#48225
>
> TEST= refactoring covered by existing tests, few new tests.
>
> Change-Id: Id9fc5af5fe011deb0af3e1e8a4ea3a91799f9da4
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/244241
> Reviewed-by: Martin Kustermann <kustermann@google.com>
> Commit-Queue: Lasse Nielsen <lrn@google.com>
TBR=lrn@google.com,kustermann@google.com,sra@google.com,sigmund@google.com,nshahan@google.com
Change-Id: I455be5a04b4c346df26d4ded0fa7388baccb0f8c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/247762
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>
This is a major rewrite of the `_Future` class,
which is the default implementation of the `Future` interface.
The main goal was to reduce the number of expensive type checks
in the internal passing around of data.
Expensive type checks are things like
* `is _Future<T>` (more expensive than just `is _Future`, the latter
can be a single class-ID check.
* Covariant generic parameter checks (using `T` covariantly in a
parameter forces a run-time type check).
Also removed some plain unnecessary casts and turned some
implicit casts from `dynamic` into `unsafeCast`s.
This seems to be an success, at least on very primitive benchmarks, according to Golem:
FutureCatchErrorTest 41.22% (1.9 noise)
FutureValueTest 46.51% (2.8 noise)
EmptyFutureTest 59.15% (3.1 noise)
FutureWhenCompleteTest 51.10% (3.2 noise)
A secondary goal was to clean up a very old and messy class,
and make it clearer for other `dart:async` how to interact
with the future.
The change has a memory cost: The `_FutureListener<S,T>` class,
which represents a `then`, `catchError` or `whenComplete`
call on a `_Future`, now contains a reference to its source future,
the one which provides the inputs to the callbacks,
as well as the result future returned by the call.
That's one extra memory slot per listener.
In return, the `_FutureListener` now does not need to
get its source future as an argument, which needs a covariant
generic type check, and the methods of `_Future` can be written
in a way which ignores the type parameters of both `_Future`
and `_FutureListener`, which reduces complex type checks
significantly.
In general, typed code is in `_FutureListener`, which knows both
the source and target types of the listener callbacks, and which
contains the futures already at that type, so no extra type checking
is needed.
The `_Future` class is mostly untyped, except for its "public"
API, called by other classes, which checks inputs,
and code interacting with non-native futures.
Invariants ensure that only correctly typed values
are stored in the untyped shared `_resultOrListeners` field
on `_Future`, as determined by its `_state` integer.
(This was already partially true, and has simply been made
more consistent.)
Further, we now throw an error in a situation that was previously
unhandled: When a `_Future` is completed with *itself*.
That would ensure that the future would never complete
(it waits for itself to complete before it can complete),
and may potentially have caused weird loops in the representation.
In practice, it probably never happens. Now it makes the error
fail with an error.
Currently a private `_FutureCyclicDependencyError` which presents
as an `UnsupportedError`.
That avoids code like
```dart
import "dart:async";
void main() {
var c = Completer();
c.complete(c.future); // bad.
print("well!");
var d = Completer();
d.complete(c.future);
print("shucks!");
}
```
from hanging the runtime by busily searching for the end of a cycle.
See https://github.com/dart-lang/sdk/issues/48225Fixes#48225
TEST= refactoring covered by existing tests, few new tests.
Change-Id: Id9fc5af5fe011deb0af3e1e8a4ea3a91799f9da4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/244241
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Lasse Nielsen <lrn@google.com>
Removes the lazy loading of the underlying type in LazyJSTypes.
As such, this removes the need to keep AnonymousJSType and
LazyJSType separate, and is therefore refactored to
PackageJSType. Similarly, subtyping is fixed such that
PackageJSTypes are all subtypes of each other.
Change-Id: If489defdbeb5cb932db802a7d146ad2fc393b12c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/207982
Commit-Queue: Srujan Gaddam <srujzs@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
- Accept the existing output in the golden file as a new baseline.
- Copy the golden file for the null safe version of the test and
enable running the full golden diff.
Fixes: https://github.com/dart-lang/sdk/issues/44025
Change-Id: Ie5b3e7c7689d17fca8a01e970b28fc815a6b9851
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/172688
Reviewed-by: Mark Zhou <markzipan@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>
This CL:
- Fixes https://github.com/dart-lang/sdk/issues/43987 (an exception in custom formatting code)
- Restores (most of) debugger_test.dart to passing (which tests above)
- Fixes a type caching error also exposed by the above test
Note, this skips the golden file comparison. That appears to be very broken
(see comment).
Change-Id: I283b66a710f17765faed47aa099b0b8570e6cac1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/170022
Reviewed-by: Gary Roumanis <grouma@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Commit-Queue: Vijay Menon <vsm@google.com>
