These tests verify the scope over which a variable can become
de-promoted due conservative modeling of demotion. The conservative
model of demotion is used for loops, closures, switch statements, and
try blocks.
The implementation of flow analysis already passes these tests. I
will shortly be making a spec clarification that brings the spec in
line with the implementation.
Change-Id: I22a5584a808169fa228c2972c25844c432916c06
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152920
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Leaf Petersen <leafp@google.com>
Make sure the individual getter/setter workaround for structs in NNBD
works. That way structs can be migrated without having to opt in to
the proposed --enable-experiment=external-abstract-variables for
external fields.
Note that this requires dart:ffi users to migrate twice for NNBD, once
to the workaround, and later a cleanup to external fields.
Change-Id: I2a9020ff7df3ebf08e04f71183f9297d87acb1b1
Cq-Include-Trybots:dart/try:vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64-try,vm-precomp-ffi-qemu-linux-release-arm-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/153777
Reviewed-by: Erik Ernst <eernst@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
CL 148324 'For external/abstract fields: add tests and update Dart.g'
contained a couple of typos, this CL corrects them.
Change-Id: I6ee9b769c8b23e299b13cbb5d4ba38cbfec7656f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/153145
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Commit-Queue: Erik Ernst <eernst@google.com>
Before this CL, if one compiled a script as strong nnbd (with nnbd
enabled), where the script was marked as as a version where nnbd is enabled,
but where the script lived in a package with a version that was too low
one would get an error.
The reason is that the language version is set twice:
First when the library is created (but the file isn't read yet). This sets
the version from the package. Here an error was issued.
The second time is when the file is read and the file-version-marker is
parsed (e.g. @dart = 2.9).
The error should only be given if - once the final verison has been set
(i.e. after parsing the file) - the version is "wrong".
To make matters worse the (bogus) error given even points to the files
first position which can make it seem like it specificly points to the
@dart annotation and says it's wrong.
This CL fixes the error so it's only issued when it should be.
It does not fix pointing semi-weirdly.
Fixes https://github.com/dart-lang/sdk/issues/42323
Bug: 42323
Change-Id: Id84ca06b2e4eca5912e65798ed2d86f8c89d71a4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/153769
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
* Setting the nonNullAsserts flag in the bootstrapping logic will
enable/disable failing when a null value is passed to a non-nullable
method parameter when running with weak null safety.
* Move the --null-assertions from VM options to the shared options in
the test and use it to set the flag in DDC the entry point.
* Configure other backends to ignore the flag.
Change-Id: Ia2670514bed7fa981564e99b85d74f6bae6dd9fc
Fixes: https://github.com/dart-lang/sdk/issues/42404
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151306
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Mark Zhou <markzipan@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
This is a reland of 391d3bcdd8
The root cause of the failure is that the destination path uses forward
slashes as path separator.
This fix checks for forward slashes as a potential path separators.
If both forward and back slashes exist, the one closer to the end of the
path will be used to get the destination directory.
If any step fails, it will fall back to original copy.
Original change's description:
> File::Copy avoids direct copying on Windows
>
> There is a race condition for copying file on Windows, where CopyFile()
> returns success but data has not been populated into destination file.
> E.g process is killed or died in the middle.
>
> This cl will change File::Copy as
> 1. Copy file to a temp file in the same directory of destination file.
> 2. Rename the file to the target file.
>
> Bug: https://github.com/dart-lang/sdk/issues/42119
> Change-Id: I39b6d451f6ace970bc554501148259d33de232c7
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149667
> Commit-Queue: Zichang Guo <zichangguo@google.com>
> Reviewed-by: Zach Anderson <zra@google.com>
Bug: https://github.com/dart-lang/sdk/issues/42119
Change-Id: I58c3aa432d3f64bddb1deace4c9a1ceb2f0f5e16
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151035
Commit-Queue: Zichang Guo <zichangguo@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
This CL adds support for converting local function type variables from
the K model to the J model. The entity use for the J model type variables
isn't created before the closure classes and closure call methods have
been created. Therefore, the [ClosureData] is now registered
with the [JsToFrontendMap] object, once computed, allowing conversion of
local function type variables. Conversion of [BackendUsage] is moved
after closure creation because [RuntimeTypeUse] can refer to local
function type variables.
Closes#42088
Change-Id: Ifc00e69b5db0dd05710ea97017c41e8c7f5e520e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/153080
Reviewed-by: Mayank Patke <fishythefish@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
If a user program installs custom signal handling for SIGINT,
the DartDev instance may exit before its child, potentially causing
confusing behavior and 'zombie' children. By ignoring these signals in
DartDev, the DartDev instance will only exit once its child process
exits.
Fixes https://github.com/dart-lang/sdk/issues/42092
Change-Id: I04bf6d1f375b8bb3a4f7022f2c79ddde3bd5f414
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149643
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Jaime Wren <jwren@google.com>
This CL adds tests in language/external_abstract_fields, testing the
support for abstract instance variables, and for external top-level,
class, and instance variables. It is tested that the syntax of
supported declarations is accepted, and a number of non-supported
forms are rejected, and abstract fields are tested at run time as well.
The implementation of external fields is provided by an implementation
specific mechanism, and no tests are added for any such mechanisms
(that is, with external fields we only test errors).
This CL also updates the spec grammar Dart.g to include grammar
rules for the new kinds of declarations, and it has been verified that
the new tests are passing, respectively cause syntax errors, as
indicated in the test files.
The tests are a further development of the ones in
https://dart-review.googlesource.com/c/sdk/+/145862.
Change-Id: I13be746a05d5acf0117d8cb22151bd9863a71a78
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148324
Commit-Queue: Erik Ernst <eernst@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Adds TODO comments in appropriate places for future work that will move
non-covariant type checks out of the closure body. Instead, the VM will
perform them in the invoke field dispatcher (or NoSuchMethodFromCallStub
if --no-lazy-dispatchers is used) when a dynamic call is detected.
This change has minimal negative effects on the code size. Here are the
code size change percentages for the Flutter Gallery in release mode:
* ARM7
* Instructions: +0.0391%
* ROData: -0.0040%
* Total: +0.0239%
* ARM8:
* Instructions: No change
* ROData: +0.0015%
* Total: +0.0004%
All other code size benchmarks are also <0.01% increase.
Bug: https://github.com/dart-lang/sdk/issues/40813
Change-Id: I4bf145803bb9e2d4ba5c22c12b6fd3bb5368441d
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-nnbd-linux-release-x64-try,vm-dartkb-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151826
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Getter types need to be a subtype of the setter type, so if getters
are nullable due to incompatibility, the setter needs to be as well.
This change makes those changes, updates documentation, and modifies
a template and test file.
Change-Id: I2130538bb4005b3553eb7951af022c1c2ed59c1e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152607
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Srujan Gaddam <srujzs@google.com>
This CL adds support for type inference on type aliased invocations of
factory constructors, redirected as well as non-redirected, and it adds
some tests using this feature.
Additionally, this CL resolves a couple of issues that arose when the
directory nonfunction_type_aliases was migrated to null-safety (by
means of two single line fixes, in 'usage*_test.dart').
Still missing: The shadow nodes should be eliminated in
_unaliasTypeAliasedConstructorInvocations and
_unaliasTypeAliasedFactoryInvocations, this will be done in a separate
CL.
Change-Id: Ic146bd16a02ca8f79c46b7df7c8dff7712f21189
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152740
Commit-Queue: Erik Ernst <eernst@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
- Some of the package config tests for isolates were not ported in the
initial round, this CL ports these tests.
- lib_2/isolate/isolate_stress_test.dart is not ported as it is
currently skipped for the VM and was probably intended to be a
dart2js test.
Change-Id: I53c3641d2a83f2661ecdb8cd57a8c381234b06d3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152940
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
A generalized stream which provides a controller for each listener.
Can be used to implement both broadcast streams and single subscription streams,
as well as any stream behavior between the two.
Change-Id: I7a75f8736ca6bc91ce266e768db68536efd24dfe
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150936
Commit-Queue: Lasse R.H. Nielsen <lrn@google.com>
Reviewed-by: Nate Bosch <nbosch@google.com>
When we moved to make errors non-nullable in the async API, I added
legacy tests, but not NNBD tests because it is a static error in NNBD.
However, we've since started testing that null is caught dynamically
when flowing into those APIs from legacy code.
So this migrates those tests over.
Change-Id: I8002bacb45e947ef8c93dca10c7c1fd41afaa696
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152614
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
https://dart-review.googlesource.com/c/sdk/+/145591 introduced a try
catch into FFI calls to call ExitHandleScope on the exception path.
However, we only need this try-catch if we actually need to exit the
handle scope on the exception path, which is not the case if we have
no handles in the signature. So this CL makes the try catch optional.
This speeds up ffi calls without handles (tested on JIT x64):
FfiCall.Uint8x01(RunTime): 206.4801280066068 us.
->
FfiCall.Uint8x01(RunTime): 203.7240782236708 us.
Also adds a test that checks that an exception can still be propagated
with Dart_PropagateError from native code when the FFI trampoline has
no try catch.
Change-Id: I9fac7078381c60fb8055b64fff29ea364fbc948f
Cq-Include-Trybots: luci.dart.try:vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64-try,app-kernel-linux-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-win-debug-x64-try,vm-kernel-win-debug-ia32-try,vm-kernel-precomp-linux-debug-x64-try,vm-dartkb-linux-release-x64-abi-try,vm-kernel-precomp-android-release-arm64-try,vm-kernel-asan-linux-release-x64-try,vm-kernel-msan-linux-release-x64-try,vm-kernel-precomp-msan-linux-release-x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-precomp-android-release-arm_x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,dart-sdk-linux-try,analyzer-analysis-server-linux-try,analyzer-linux-release-try,front-end-linux-release-x64-try,vm-kernel-precomp-win-release-x64-try,vm-kernel-mac-debug-x64-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-nnbd-linux-debug-x64-try,analyzer-nnbd-linux-release-try,front-end-nnbd-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151239
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Paul Berry