The parser used the global features and not the library features to
determine whether pattern syntax should be expected.
Closes#51625Closes#51626
Change-Id: I3adc05468c0f9d2c5b919dc7fa12a5de4dcbbc7b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/288504
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
These AST nodes were so far internal to the CFE, but since we need to
move the pattern lowering to the constant evaluator we need to support them in the AST defined in package:kernel.
TEST=existing
Change-Id: Ie6c5f0f8ad75a866c5d965fdf506bc869ffaf654
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/288241
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Joshua Litt <joshualitt@google.com>
This adds a pattern visitor and moves the matching expression into
a visitor. Also, the InferenceVisitorImpl implements the pattern
visitor and uses it for visiting patterns.
This is preparation for move the Pattern nodes to the
external AST and move pattern lowering to the constant evaluation.
Change-Id: I9a05f4c61032cfe3d823d4558922822b501c1ac1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/282105
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
+ include textual representation of internal nodes in ast-to-text
to verify the encoding.
Change-Id: I3b4fd1327539fd6d2e5176daee2a8fb79dc3c6e7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/266201
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
This add the Expression-, Binary-, Cast-, NullAssert-, NullCheck-, List-
and RelationalMatcher and creates these during body building. The
IfCaseStatement is added to support propagation of these to the
inference visitor.
Change-Id: Ia9add15e504cb06af711efc1697a00b8e235e1a4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/263128
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Previously a named function expression (function declaration occurring
in an expression context) was encoded using a
[NamedFunctionExpressionJudgment] which was a specialization of a [Let]
expression. This encoding couldn't handle recursive calls occurring in
the body of the named function expression, since the let variable
is not available in the initializer of the let variable, leading to
a crash in serialization.
This CL changes the encoding to use a [BlockExpression] instead and
deletes the [NamedFunctionExpressionJudgment] node.
Closes https://github.com/dart-lang/sdk/issues/49122
Change-Id: I40c5535624b2d8933a6f400c927ba42b028f7a29
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/246445
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
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>
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>
This changes two parts about handling of nullability in libraries:
1) Instead of using Nullability.nullable for explicit nullability in
legacy libraries, which is an error case, we use Nullability.legacy
so that legacy libraries only contain legacy nullabilities.
2) Avoid performing legacy erasure on parameter types. This change
explicit `Never` from "Null" to the correct "Never*".
Change-Id: Iba2fa8244c8820375056d106f30d6de8054f2681
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/240921
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Invocations that haven't been inferred are now not checked wrt. bounds.
These can occur in erroneous code or in outline expressions that are
currently created both in the outline phase (where they are fully
inferred) and in the body building phase where they are not inferred.
Additionally, an assertion is added to verify that these invocations
are no longer part of the AST, and therefore safe to leave incomplete.
Closes https://github.com/dart-lang/sdk/issues/48148
Change-Id: I6d83c2db05d43b016e21abf915cbe5a312b20c79
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/228560
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
This allows for using data created in the TestConfig in the computation
of test results.
Change-Id: Ia4820d0b739b01272f10d2c2561fcf77ae007031
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/225731
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
This CL enables the avoid_void_async lint in the CFE, makes the needed
changes and adds the missing `await` (because the lint
`unawaited_futures` doesn't react to void async methods).
Change-Id: Iffc1f173badd3c2d48356ee02e81a9aed492ce5d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/213481
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
- to replace internal use of the old method invocation encoding.
Change-Id: I7ca876d28beec265f1a143ce5f29deb9e61616d7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/208184
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
In each library where an import is removed, the library uses some elements
provided by the import, BUT there is another import which provides all of the
same elements, and at least one more which the library uses.
In this change, we remove the imports which can be simply removed in favor of
the other already present imports.
See https://github.com/dart-lang/sdk/issues/44569 for more information.
Change-Id: Iea21ddba3f26637a244437911730253e4c6f22dc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/199460
Reviewed-by: Paul Berry <paulberry@google.com>
Commit-Queue: Samuel Rawlins <srawlins@google.com>
This allows us to remove a substantial amount of CFE and analyzer
code.
It also fixes a minor CFE type promotion bug
(language_2/type_promotion/assignment_defeats_promotion_lhs_and_test).
TEST=standard trybots
Change-Id: Ia0c159bdb9161d73648c9eb73b92822168f28d84
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/175583
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
This CL completes the migration of the first wave of
interdependent libraries in package:kernel, including ast.dart.
In order to ensure non-nullability on AST properties, the Transformer
has been split in 2 variants: Transformer which doesn't support
removal of nodes and RemovingTransformer which supports removal where
allowed by the context using 'removal sentinels'.
Start reviewing Transformer and RemovingTransformer in visitors.dart
since many of the changes are caused by the changes here.
Included in the migration are the mixin_deduplication.dart and
unreachable_code_elimination.dart since these needed porting to
the RemovingTransformer which was aided by opting in the libraries
which only depended on ast.dart.
TEST=existing
Change-Id: I9e63b985bd24896c25edd4ee51e37770187bcc17
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/184786
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
This reverts commit 14032a6209.
Reason for revert : Several customer flutter tests are failing because
of the change in behavior.
TEST=revert of previous CL.
Change-Id: Ia235aa93b9c81fbab066803dc0625856f93acceb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/181860
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Leaf Petersen <leafp@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
This converts `return e` in async methods in opt-in libraries into
return let v = e in v is Future<FTV> ? await v ; v
where FTV is the future value type of the enclosing function.
Closes#44395Closes#44396Closes#44397Closes#44399
TEST=existing tests
Change-Id: I59687039bfe4a97ffdaa55ac0f193ca4fb208f44
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/175310
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
The creation of the shorting stop expression was done lazily
in NullAwareExpressionInferenceResult.expression. Since the shorting
calls flow analysis to stop null promotion doing this out of order
let to inconsistent flow analysis state.
This CL introduces an `inferNullAwareExpression` the allows to
caller to continue the shorting (if in an opt-in library). The
inferExpression method, used everywhere else, stops any shorting
currently in progress.
Closes#43275
Change-Id: I448163e29bdb0de8e493e5c62aa0474d0c9a593f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/173729
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Most of the time one already knows at the call site if it's a Field,
a Procedure etc --- so use that instead.
For now I'll leave the corresponding getters that are basically
documented as "don't use" ("[...] for convenience, not efficiency.
Consider manually iterating the members [...]").
Change-Id: Ib732759432c62963e6645f85f6df301c4281df9d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/168826
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Even when non-nullable is enabled by default, enabling the experiment
explicitly should result in the experiment release version (and not
the experiment enabled version) to be used for opting in.
For this change, the semantics of parseExperimentalFlags was change
to _not_ normalize the flags to a full mapping including default values.
For this reason all uses of such maps are renamed to
'explicitExperimentalFlags'.
Closes#43879
Change-Id: I0d0262e68ec1403549abcfd305ae3a4404fe93e3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/168654
Reviewed-by: Jake Macdonald <jakemac@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
