Commit Graph

1991 Commits

Author SHA1 Message Date
Srujan Gaddam 61abaeda3f [CFE/web] Move static interop erasure and remove outline stubber
Deletes the outline stubber as it's not necessary on any backend.
DDC should compile the entire sources and outline dill in one step.
dart2wasm operates similarly, and so only needs the modular transformer.
dart2js moves the erasure to a global transform.

Also, this CL reverts now unnecessary plumbing that was needed for the
outline stubber.

Change-Id: Ic085c4fad5a6bdfc7d6916f7fa575c6ef9b20110
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/253000
Reviewed-by: Joshua Litt <joshualitt@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Srujan Gaddam <srujzs@google.com>
2022-08-01 18:17:44 +00:00
Anis Alibegić 40e18905f2 Fixed various typos in a lot of files
Closes https://github.com/dart-lang/sdk/pull/49478

TEST=Manual

GitOrigin-RevId: f4c9c6869dfe73639295e86574a021523b3d374d
Change-Id: I134a97caed4eec59d70e9cbca16b7e9a472cf2c1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/251902
Reviewed-by: Michael Thomsen <mit@google.com>
Commit-Queue: Alexander Thomas <athom@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Reviewed-by: Kevin Chisholm <kevinjchisholm@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
2022-07-25 12:21:59 +00:00
Srujan Gaddam f6a3d2d5c2 [pkg:js] Transform constants and supertypes in eraser
Types in constants and supertypes need to be visited in case
they include @staticInterop types.

Fixes a bug in caching in the constant replacer.

Change-Id: Icde8b7170a8806d6a1995cad57a9788893b7772f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249441
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Srujan Gaddam <srujzs@google.com>
Reviewed-by: Riley Porter <rileyporter@google.com>
2022-07-18 18:24:53 +00:00
Alexander Thomas 5249cd9294 [release] Bump version to 2.19
Tested: Standard CQ
Change-Id: Ic52d4d38a5b117dfcdc778dedfac08315ca30a54
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/251541
Commit-Queue: Alexander Thomas <athom@google.com>
Reviewed-by: William Hesse <whesse@google.com>
2022-07-14 14:14:55 +00:00
Jens Johansen 9f8f6df70f [CFE] Cache unevaluated constant results in equivalence testing
For now it's only done for unevaluated constants as that's where an
issue has been observed.
This CL further more limits the default nesting depth for both
expressions and statements (e.g. when .toString() printing an ast node)
to 50. Again this has been shown in one case to be a good place to
stop an (exponential time) issue from happening.

Change-Id: I6affb2846a6587542ffce3f8d6914a4209b08322
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/251103
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2022-07-12 10:14:45 +00:00
Alexander Markov 3a1229e56c [kernel] Remove obsolete AsyncMarker.SyncYielding and YieldStatement.isNative
AsyncMarker.SyncYielding and YieldStatement.isNative became
obsolete after async/async*/sync* kernel transformation was removed in
https://dart-review.googlesource.com/c/sdk/+/249944.

TEST=ci

Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: I69ac994af77f7e403686750bf8df437868bf33fa
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249947
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2022-07-11 18:20:45 +00:00
Alexander Markov 94c120a6ea [vm] Cleanup old async/async*/sync* implementation from kernel
This change removes kernel transformation which was used to
desugar async/async*/sync* functions in the old implementation of
async/async*/sync*.

The useful part of the transformation is retained in
pkg/vm/lib/transformations/for_in_lowering.dart.

TEST=ci

Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: Ic70c1fb35162a31bcc22eac3a8f6488b61e945b4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249944
Reviewed-by: Slava Egorov <vegorov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2022-07-11 18:12:41 +00:00
Johnni Winther f6846849b9 [cfe] Handle augment super expressions
This adds the generation of access to augmented procedures.

TEST=existing

Change-Id: I5efa9cc541b86c18735bb1f4c51c73976ffa42ca
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/250164
Reviewed-by: Tess Strickland <sstrickl@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-07-04 12:37:50 +00:00
Srujan Gaddam 0036dc7c57 [CFE] Add constant replacer
Adds a replacement visitor for Constant types using null as a
sentinel value for whether a subnode has changed or not (except
in the case of TreeNodes in order to match existing Visitor
semantics).

Change-Id: Iaaab1b1c608af07f36ece08071b3d703884cd91b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/248944
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Srujan Gaddam <srujzs@google.com>
2022-06-30 18:13:46 +00:00
Johnni Winther 414d5d3836 [cfe] Include concrete augmented procedures in the AST
This is in preparation for supporting `augment super` access of
augmented members.

Change-Id: Ib306ef59faa7c9ad735304545aa414f6b21e2596
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249862
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
2022-06-29 12:27:05 +00:00
Srujan Gaddam b372fd4c52 [CFE/pkg:js] Find reference of stub if it already exists
Fixes #49301

From https://github.com/dart-lang/sdk/issues/49301#issuecomment-1165536192

Adds referenceFromIndex to outline transformations so that the eraser
can use it to find the reference for the stub if it was already created.
This is needed when the module where the stub exists is invalidated.
Since references in other modules should still be valid, we should
attempt to get that reference.

Change-Id: I5905a002480444aecd57de650cd439bdc34d4eba
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249729
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Joshua Litt <joshualitt@google.com>
2022-06-28 18:36:02 +00:00
Alexander Markov 77ea9820aa [vm] New implementation of sync* based on suspend/resume stubs
Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: I7f4b6b56d914a617dfd7ac724cd4414532073b4c
TEST=ci
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249141
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2022-06-27 18:19:12 +00:00
Johnni Winther e18977ed9c [cfe] Report error for missing concrete super target
In response to https://github.com/dart-lang/sdk/issues/47406

The error is currently not reported if the mixin declaration is from
an outline dill.

Change-Id: I94a61d6409d0c238614d9f377b5f324153360bc6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249184
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-06-24 14:04:49 +00:00
Johnni Winther 391540c889 [cfe] Make (Abstract)Super*.interfaceTarget non-nullable
This is a step towards improving the semantics of these nodes.

TEST=existing

Change-Id: I95bdb86790414b38af73e9e932cc228b3c0f1f6e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249040
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Joshua Litt <joshualitt@google.com>
2022-06-23 09:16:55 +00:00
Jens Johansen 3c8a679b46 [CFE] Handle unevaluated constants differently in constant evaluator
This for instance avoids an exponential blowup that would previously
have occurred in certain cases.

Change-Id: I258d8153e75f7059bca346826b5dec62cc1bac84
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249000
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Joshua Litt <joshualitt@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2022-06-22 08:51:04 +00:00
Chloe Stefantsova 95d8a5d41a [cfe] Remove Kernel round-trip text serialization
Change-Id: Ifdf0df0b93773f95eb1646a313c15e0a578b5a8d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249181
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Chloe Stefantsova <cstefantsova@google.com>
2022-06-21 10:28:24 +00:00
Srujan Gaddam 459d57c8b8 [package:js] Add static interop stub for outlines
Fixes b/235393918

@staticInterop replaces factories with a new named node, a static
method. In order to persist this transformation in modular
compilation, this needs to be done to outlines that can then be
consumed by the source library. In order to allow erasure at the
time of 'performOutlineTransformations', coreTypes is added to that
API.

Change-Id: I90d17fff8bbe143982fcd12cfb06dc3e8d58781a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/247928
Commit-Queue: Srujan Gaddam <srujzs@google.com>
Reviewed-by: Joshua Litt <joshualitt@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2022-06-17 19:58:49 +00:00
Johnni Winther 05bbe907d7 [cfe] Support extraneous references in serialization
This enables the serialization to handle references to libraries that
are not part of the serialized libraries. This is a step towards
removing the need to call computeCanonicalNames from outside the
serialization and to always use library filters for serialization
of a subset of the libraries in a component.

In response to b/235393918

TEST=existing

Change-Id: I48cd8b027795850ac2411a80e4b55efd517bb2cc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/248588
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Srujan Gaddam <srujzs@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-06-17 11:52:39 +00:00
Johnni Winther 661d9762af [cfe] Use InvalidExpression for targetless super access
This changes the encoding of super access without a target to use
InvalidExpression, similar to static access without a target, instead
of a SuperMethodInvocation/SuperPropertyGet/SuperPropertySet node with
a `null` interface target.

This is in preparation for using (Abstract)Super* nodes with the same
precision as Static*/Instance* nodes.

Change-Id: Ie0320c72241162a4c32a904a6608c9d29c2df401
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/248780
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-06-17 08:30:38 +00:00
Jens Johansen de23c67fb0 [kernel] Fix loading when overriding field with Procedure
Fixes https://github.com/dart-lang/sdk/issues/49261

Change-Id: Ia784afe0550865e5c9c37cd270525b7737c8b7f2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/248560
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2022-06-15 08:55:08 +00:00
Konstantin Shcheglov ba4b3d20d2 Import dart:typed_data instead of deprecated re-export from dart:io
Bug: https://github.com/dart-lang/sdk/issues/23067
Change-Id: I6bfe7afabe344bb0de690f762b5f80604809021e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/248344
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Bob Nystrom <rnystrom@google.com>
2022-06-14 06:29:37 +00:00
Johnni Winther bcf350e2ea [cfe] Support triggering inference through TypeBuilder.build
This adds the capability to trigger inference through
TypeBuilder.build when it is passed a ClassHierarchyBase object.

TypeBuilder.isExplicit is added to signal when a type can be built
without the need for inference. NamedTypedBuilder and
FunctionTypeBuilder are split into _Explicit* and _Inferred* subtype
the latter of which support late building of the type.

The new _Inferred* builders are not used yet.

Change-Id: I66fd669ae47e6eb3079461af31477215c262dcbb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/247220
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-06-09 16:32:15 +00:00
Alexander Markov 3e0abdbb98 Reland "[vm] Enable new implementation of async/async* in JIT mode"
TEST=ci

Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: I5b8720b8ef5b8d28773d26c7e94c2e78d876c9d2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/247603
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2022-06-09 15:24:13 +00:00
Alexander Markov 3e10d8c833 Revert "[vm] Enable new implementation of async/async* in JIT mode"
This reverts commit b3544c44dc.

Reason for revert: avoid incompatibility between Dart->kernel compiler
and Dart VM during Dart and Flutter rolls (b/234850964).

TEST=ci

Original change's description:
> [vm] Enable new implementation of async/async* in JIT mode
>
> TEST=ci
>
> Issue: https://github.com/dart-lang/sdk/issues/48378
> Change-Id: I0fc069508cb1ce5648deb6604171dfdcd5bcb5c8
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/246082
> Reviewed-by: Johnni Winther <johnniwinther@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
> Reviewed-by: Slava Egorov <vegorov@google.com>
> Commit-Queue: Alexander Markov <alexmarkov@google.com>

TBR=vegorov@google.com,kustermann@google.com,rmacnak@google.com,alexmarkov@google.com,johnniwinther@google.com

Change-Id: I6157623857dbfa9bb07eb1f620d100f5b24314d9
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Issue: https://github.com/dart-lang/sdk/issues/48378
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/247243
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2022-06-07 17:57:30 +00:00
Aske Simon Christensen 608b95c9b4 [kernel] Add exhaustiveness information to switch statements
Tested: Added flag to text output and updated expectation files
Change-Id: I44bb82242ad608b19894e22c41d8404c5003c2d1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/245982
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2022-06-07 10:45:39 +00:00
Alexander Markov 3d1c991fcf [cfe] Update test expectations after new async/async* implementation in the VM
The new implementation of async/async* doesn't use async kernel
transformation.

TEST=ci

Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: I86594d8c0df382512e64e59847c178569f7fc38e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/246083
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2022-06-02 23:47:49 +00:00
Alexander Markov b3544c44dc [vm] Enable new implementation of async/async* in JIT mode
TEST=ci

Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: I0fc069508cb1ce5648deb6604171dfdcd5bcb5c8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/246082
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2022-06-02 23:40:15 +00:00
Devon Carew f7c46f145c [pkg] prefer 'any' deps for package dev dependencies
Tested: CI validation
Change-Id: If65cc156130a65ffe00c6f1660ac320e2921afae
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/246053
Commit-Queue: Devon Carew <devoncarew@google.com>
Reviewed-by: Nate Bosch <nbosch@google.com>
2022-05-27 01:34:59 +00:00
Ahmed Ashour a6fcb56901 Fix typos
Fixes #49094

TEST=ci

Change-Id: I23cdcb5ad2fc83e5e91d80e34b66af186c0cb923
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/245820
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Slava Egorov <vegorov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2022-05-24 09:10:51 +00:00
Chloe Stefantsova 254b7882a1 [cfe] Adjust the number of optional positional parameters in DOWN
This CL brings the CFE into agreement with the spec and the Analyzer
for function types with optional positional parameters by adjusting
the number of such parameters.

Close https://github.com/dart-lang/sdk/issues/49044

Change-Id: I0d15bb5b4b10c5ca18b78c985e3424899155a3c6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/245367
Commit-Queue: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2022-05-20 11:41:42 +00:00
Johnni Winther cb3cac408d [kernel] Add AbstractSuper* nodes
This adds AbstractSuperMethodInvocation, AbstractSuperPropertyGet,
AbstractSuperPropertySet nodes which are to be used for super access
in mixin declaration.

These super accesses do not resolve to their statically bound target
but instead the interface target on the types in the 'on' clauses, and
need to be updated to the statically bound target upon mixin application.
This has lead backends to disregard the interface target provided by
the CFE and instead always compute targets for super accesses.

This change is a step towards creating a clear separation between the
two use cases, enabling a more precise handling of super accesses.

The new nodes are not created yet with this CL.

TEST=existing

Change-Id: I70ea9baf5b4b970b10cc72b7409633d270d57755
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/245168
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-05-20 09:50:01 +00:00
Liam Appelbe 521ad77689 [cfe] Mark enhanced enum toString method as synthetic
This fixes a bug where this method is showing up in coverage reports.

Also needed some plumbing in the VM for this flag, because we were
ignoring it before.

Change-Id: I9200a16dab488f5f880b9797243bd2f39de993b3
Fixes: https://github.com/dart-lang/coverage/issues/386
TEST=Added a source_report_test
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/245041
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Liam Appelbe <liama@google.com>
2022-05-17 22:11:36 +00:00
Johnni Winther 5222bfd90c [cfe] Refactor bounds checking
This CL moves the bounds checking into the TypeBuilder instead of
performing it from the outside on the computed DartType node.
This solves several problems:

  1) Errors are now reported on the type in the code instead of the
     declaration which holds the type.
  2) Checking of type aliases (both function and nonfunction type
     aliases) is now handled correctly in all cases. This achieved by
     computed the aliased type (containing TypedefType nodes)
     internally and performing the checking on this type, and only
     convert the type into the unaliased version (without TypedefType
     nodes) after checks have been performed. Previously this handled
     through the FunctionType.typedefType property for function type
     aliases and through and incomplete work-around for nonfunction
     type aliases.
  3) With 2) FunctionType.typedefType is no longer needed and is
     removed.

TEST=general/bounds_*

Change-Id: I7653bca5ccb0ebf4b3553828a298d1ad918ef235
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/243722
Reviewed-by: Mayank Patke <fishythefish@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2022-05-17 14:36:19 +00:00
Nate Bosch 6ebd2633cd Use any deps for all unpublished packages
It should not be necessary to ever run `pub get` for a package which is
not published. All packages used in the SDK are controlled by a single
package config, so it's not necessary to declare versions or paths for
any packages.

Remove all dependency overrides.

R=devoncarew@google.com

Change-Id: Icb328813b471f35ee4c99995f4e90aac4d8ed438
Tested: Covered by existing static analysis.
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/244767
Commit-Queue: Nate Bosch <nbosch@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Reviewed-by: Devon Carew <devoncarew@google.com>
2022-05-17 01:22:25 +00:00
Nate Biggs c6173d3686 [dart2js] Correctness updates for async lowering.
- Wrap returns in Future.value to ensure the returned Future has the async function's return type.
- Skip any function that has try/catch/finally as these introduce more complex control flow. (Might be able to convert these using an onError callback in the future).
- Don't assume futureValueType since CFE might not populate it in Kernel when syntax is incorrect.

Change-Id: Ice3954da52a10a74f93b0adc6409a2d98e13cb3b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/241260
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Nate Biggs <natebiggs@google.com>
Reviewed-by: Stephen Adams <sra@google.com>
2022-05-05 21:25:45 +00:00
Paul Berry ce591d17c3 Resolve deferred function literals in stages.
This change allows function literals in invocations to be inferred in
dependency order.  For example, given the following code:

    U f<T, U>(T Function() g, U Function(T) h) => h(g());
    test() {
      var x = f(() => 0, (y) => [y]);
    }

The function literal `() => 0` is inferred first, causing the type
parameter `T` to be assigned the type `int`.  Then, `(y) => [x]` is
inferred with the benefit of this type assignment, so `y` gets the
type `int`, and consequently, `U` gets assigned the type `List<int>`.

This completes the support for
https://github.com/dart-lang/language/issues/731 (improved inference
for fold etc.)

Change-Id: I48c22693720a1cc8bbf435643e863834e07f02b1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/243002
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
2022-05-03 22:04:39 +00:00
Alexander Markov 4075e8b3f9 [vm] New async*/yield/yield* implementation based on suspend/resume stubs
TEST=ci
Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: I0c2ca9269b2c8f008a79c139a0ce10231996732d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/242923
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2022-05-02 20:53:01 +00:00
Aske Simon Christensen 28dec99cf5 [kernel] Allow bare return in sync* and async* functions in verifier
Such return statements are allowed in Dart, and they can be present in
kernel that has not been processed by the async transformation.

Change-Id: I8592cce58cb8fca2d78cdb0d5e5532715553c1ac
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/242544
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2022-04-29 15:02:51 +00:00
Jens Johansen 430abc54e8 [CFE] Add toText to Reference and CanonicalName
Add `toText` to both Reference and CanonicalName.
Change how CanonicalNames are printed through `text_util.dart` to be
more aligned with how the corresponding node would be printed had
it existed (and the CanonicalName thus normally not been used for
printing).
Add a test for (some definition of) common cases where printing should
be the same wherther done though the node, the reference or the
canonical name.
Fix usage of toStringInternal in the constant evaluator (though only
in use through an experiment) and add a test that showed that the
previous output was bad and the new isn't (at least in this case).

Change-Id: I10cbc1a542c7d8b079e0510bbd5eb5173b2e7563
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/242102
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2022-04-25 11:13:44 +00:00
Alexander Markov 2afc34112c [vm,kernel] New async/await implementation in the VM, part 1 - kernel
This change includes kernel-related changes:

* --compact-async option is added to kernel compilers (front-end
  server and gen_kernel). This option disables desugaring of async
  and await on kernel AST. Note that 'await for' is still desugared.

* File offset of the 'await' is now written for AwaitExpression nodes
  in the kernel binaries (will be used for async stack traces).

* Async/async*/sync* functions and AwaitExpression nodes are supported
  in TFA.

Design doc: go/compact-async-await.

TEST=ci

Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: I4233086b7434bc48347f4220645b0be5f9133456
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/241842
Reviewed-by: Slava Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2022-04-21 15:11:08 +00:00
Chloe Stefantsova 59e6a37962 [cfe] Use NNBD-updated least closure in constraint gathering
Closes https://github.com/dart-lang/sdk/issues/47797

Change-Id: I58544e185fc691630d56960d54f0711f4a91b60a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/241746
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Chloe Stefantsova <cstefantsova@google.com>
2022-04-21 09:28:28 +00:00
Srujan Gaddam a5cd295831 [CFE] Add 'futureValueType' to visitors/transformers
Closes https://github.com/dart-lang/sdk/issues/48835

This fixes an issue in which erasure is incomplete for
static interop types.

Change-Id: Ia2aef8c009d83df30bbb63b9c4dbb5b96e9f8e34
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/241820
Commit-Queue: Srujan Gaddam <srujzs@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2022-04-20 21:59:10 +00:00
Johnni Winther f26c0e2056 [cfe] Add explicit type argument to .map(...).toList()
Expressions like

  List<VariableDeclaration> variables = ...
  List<Expression> reads = variables.map((v) => VariableGet(v)).toList()

don't get the intended type argument `<Expression>` through inference,
but instead the type inferred from the return type of the closure, in
this case `<VariableGet>`.

This causes problems when used with the AST which assumes that
expressions are interchangeable wherever they are used, and is likely
the cause of https://github.com/flutter/flutter/issues/102077 .

This CL adds an explicit type argument in these cases.

TEST=general/infer_map

Change-Id: I0bcae21f06c54f290dc20686b0d84c065d8ea04c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/241605
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-04-20 06:56:58 +00:00
Chloe Stefantsova 3d27f5cb79 [cfe] Adjust nullability of FutureOr in ReplacementVisitor
This fix is analogous to that made in _TypeSubstitutor in
https://dart-review.googlesource.com/c/sdk/+/240049, but made for
ReplacementVisitor.

Closes https://github.com/dart-lang/sdk/issues/48768

Change-Id: Ie3ac8fe834210d1249cbd5bd3d68b416f9efc034
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/240722
Auto-Submit: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-04-11 06:39:50 +00:00
Alexander Thomas 8033f609ff [release] Bump version to 2.18
Tested: Default CQ run; Dart VM changes were generated.
Change-Id: If0ea7b9fd2bb0de8459c9d4b39b9cc91cec73e23
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/240542
Reviewed-by: Lasse Nielsen <lrn@google.com>
Commit-Queue: Alexander Thomas <athom@google.com>
2022-04-08 08:25:33 +00:00
Johnni Winther 6980a1b4c3 [kernel] Add VariableDeclaration.hasDeclaredInitializer
The computation of default values on super parameters requires the
notion of a declared initializer. By adding this as a flag to
VariableDeclarations the implementation can now be normalized across
parameter from source and dill.

TEST=existing

Change-Id: Ic980e68b569e3bdab38d2c7c7e4374e0c931a87b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/240403
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-04-07 14:54:08 +00:00
Chloe Stefantsova 7d8d3bb807 [cfe] Adjust nullability of FutureOrType after substitution
Bug: https://github.com/dart-lang/sdk/issues/48631
Change-Id: I329a70386d59425cf3f157dc4b6316649f8aa389
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/240049
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Chloe Stefantsova <cstefantsova@google.com>
2022-04-05 13:52:04 +00:00
Chloe Stefantsova abdd5765ee [cfe] Re-own TODOs assigned to 'dmitryas'
TEST=Only the comments were changed.

Change-Id: I8d4778746759466ea4c64f0eabe498da353fdd22
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/240041
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Chloe Stefantsova <cstefantsova@google.com>
2022-04-05 09:04:53 +00:00
Nate Biggs 8fdd773096 [dart2js] Add async lowering transformation to kernel lowering transformer.
The JS expansion of an async/await function is a complex state machine.
In many cases 'async' functions either do not use 'await' or have very
simple 'await' logic which is easily captured by [Future]. By making this
transformation we avoid substantial over head from the state machine.

This implements the simplest case of a function with no awaits which translates to a Future.value() call.

Tested on cm_shell with the following results:
Before: Compiled 243,799,156 characters Dart to 155,116,598 characters
After: Compiled 243,799,156 characters Dart to 154,781,536 characters

Reduced output size by ~0.2%.

Later iterations of this will reduce JS size by ~0.7%.

Change-Id: I918f820ed2a8b27081dad0de9f922b595113d21f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/238461
Reviewed-by: Joshua Litt <joshualitt@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Nate Biggs <natebiggs@google.com>
2022-04-04 23:58:02 +00:00
Johnni Winther 88846ca4b4 [kernel] Remove unused Typedef fields
The fields typeParametersOfFunctionType, positionalParameters,
and namedParameters were never used.

TEST=existing

Change-Id: I0ca1c546fdf94df9c3248164a56ed88cd2468b18
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/239310
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-03-30 13:01:40 +00:00