Dart2JS uses the file offset on these nodes to create JS source maps. We want to maintain these file offsets across the serialization layer when we compile from dill files rather than directly from sources.
This last CL resolves all diffs observed in test files in pkg/compiler/test/inference/data.
TEST=Updating tests for all of these in fasta offsets tests.
Change-Id: If84c7542b61c8d8b894b202c68841ccfe91dafa5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/328080
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Nate Biggs <natebiggs@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Dart2JS uses the file offset on these nodes to create JS source maps. We want to maintain these file offsets across the serialization layer when we compile from dill files rather than directly from sources.
Dart2JS tests were serializing via `--test-mode` flag and thus had incorrect source locations for some stack traces.
TEST=Updating tests for all of these in fasta offsets tests.
Change-Id: I33862462fbff84d88f8c51bdeb1efc5771cfb8b2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/327160
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Nate Biggs <natebiggs@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>
This splits visitors for (Tree)Visitor(1) into pure interfaces, mixins,
and a base class with the base implementation. This is a step towards
avoid having an accidental default implementation where a static error
would have been preferable.
This extract a ConstantReferenceVisitor(1) and its corresponding
DefaultMixin from the Visitor(1) interface.
TEST=existing
Change-Id: Ibc55bed9cff76581deaade91a10600c17fafc6dd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/325704
Reviewed-by: Mayank Patke <fishythefish@google.com>
Reviewed-by: Ömer Ağacan <omersa@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
This simplifies handle the constructor/member and its corresponding
tearoff as a pair. Also it prepare for supporting tearoff of
extension type constructors and methods with the same name.
TEST=existing
Change-Id: Iea6cbc0250c8df6bd0f825068c1f3e865d938427
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/324202
Reviewed-by: Srujan Gaddam <srujzs@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
We are experiencing diffs in Dart2JS source maps in `--test-mode` which does a serialization round trip. JS that should map to default parameters is instead mapping to the surrounding `Constructor` member since the FieldInitializer's offset is getting dropped.
This is affecting any Dart2JS split action build since those all end of serialiaing and deserializing the kernel. Any other tools using this serialization would also be affected.
TEST=Existing/will add in follow up.
Bug: https://github.com/dart-lang/sdk/issues/53466
Change-Id: Ibeccf9153c78e6c358806c7ded4dbc2dea49d8e6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/325020
Commit-Queue: Nate Biggs <natebiggs@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
When the CFE compiles code for DDC or dart2wasm, it lowers late final
fields to synthetic getters. In order to ensure that accesses to these
fields can still be type promoted, a flag is added to the kernel
`Procedure` class, to indicate that a getter was produced by lowering
a late final field. When deciding whether a property access is
promotable, the CFE checks this flag; if it's set, it treats the
getter like a field.
Includes a language test validating the fix.
Fixes https://github.com/dart-lang/sdk/issues/53462.
TEST=tests/language/inference_update_2/late_field_test.dart
Change-Id: I98b81f04a3342d851060e5b2a7265323b93bb4e3
Bug: https://github.com/dart-lang/sdk/issues/53462
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/324767
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Paul Berry <paulberry@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
This adds a typed `TypeParameter.declaration` property to be used
instead of the `parent` property. The `declaration` property holds the
declaration (Class, Method, Extension, etc.) that introduced the
type parameter. `GenericFunction` is the subset of `GenericDeclaration`
that is defined through a `FunctionNode`.
TEST=existing
Change-Id: Ie89e7f5fa12a7966507a250cacc098eb0ce6b30b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/323160
Reviewed-by: Mayank Patke <fishythefish@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
This renames InlineClass to ExtensionTypeDeclaration, and InlineType
to ExtensionType. Members of extension type declarations are called
extension type members instead of extension type declaration members
for "brevity".
TEST=existing
Change-Id: I91ed62533ddd345644492f04dc3310d007460288
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/316780
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
This removes ExtensionType, ExtensionTypeShowHideClause and
CallSiteAccessKind from package:kernel which where only used by the now
removed 'extension-types' experiment.
A follow-up CL will rename InlineClass/InlineType to
ExtensionTypeDeclaration/ExtensionType to match the names of the
Extension Type feature currently being implemented.
TEST=existing
Change-Id: I58d2e8b0a92ac61329ee161cc6884a2c0e6f87ae
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/316420
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
This adds FileUriConstantExpression, a subclass of ConstantExpression, to support correct file offset of annotations for augmentations and patches.
The FileUriExpression is used to carry the file uri of the expression
before constant evaluation.
TEST=general/patch_annotations
Change-Id: I0dc8a0cb97dd530fd1960785d38c2d5e4883c3dd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311660
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
There is an `includeSources` option today to skip writing both source bytes as well as the line starts. Dart2JS needs the line starts to generate source maps from its modified dill. But the actual bytes aren't used passed a certain point. This new option would allow us to exclude the information we don't need from the dill.
For large applications this can reduce the size of the dill by close to 50%.
Change-Id: I5e69370ee30b2fb856320c346b12662893cb595b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/293761
Reviewed-by: Jens Johansen <jensj@google.com>
This flag is set when a variable declaration is moved earlier in
order to be available for subsequent code that couldn't contain
its declaration. For instance variables declared in patterns which
needs to be declared before the matching expressions that initialize
them.
TEST=existing expectations tests
Change-Id: I80ab1138f08f725f3e01905c1a57a1483f809328
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/291820
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
This removes the "unset" values and uses nullable types instead.
The names and uses of the pattern fields are normalized, using
`matchedValueType`, `requiredType` and `lookupType` consistently
between [Pattern] subclasses.
TEST=existing
Change-Id: Ic79ce17075aa8ce252e1c223b59bef660f32bb7c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/288704
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Before this CL kernel tags had specialized tags that was marked by the
single high bit, then using the three lowest bits for a value:
128 + value = 0b10000xxx
136 + value = 0b10001xxx
144 + value = 0b10010xxx
So the numbers from 128 to 151 is taken by this scheme, but because of
the high bit marking stuff being special we can't really use 152-256.
This CL shifts the specialized tags up so it instead uses the 3 highest
bits as a marker while still using the lower 3 bits for the value:
224 + value = 0b11100xxx
232 + value = 0b11101xxx
240 + value = 0b11110xxx
This takes up 224-247 and leave 248-255 unused. It would let us use
128-223 though.
(If we eventually need more we can probably remove one of the
specialized ranges (SpecializedVariableSet isn't used very much in
previously sampled dill files) and use 4 bits for tagging).
Additionally, a tool to print free tags has been added (via binary.md),
and the "binary version is in sync with VM" test has been prepared
for version > 99.
TEST=Existing tests.
Change-Id: If77b12cee6fc3801628dd67dc40afbb018ec8a61
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/284302
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
The representation field of an inline class is not part of the
generated code - it does not have a corresponding synthesized top-level
methods like the other inline class members. Therefore, to support
access to the representation field, a new `representationName` field
is added to `InlineClass` that holds the name by which the
representation field can be accessed.
An access to the representation field is at runtime an access of the
receiver itself. To show that the static type of the expression changes
from the inline type of the receiver to the declared representation
type, an `AsExpression` is inserted. Since this check is not needed
at runtime, this node is marked with the new `isUnchecked` flag, that
backends can use to skip the check.
TEST=pkg/front_end/testcases/inline_class/field_access.dart
Change-Id: I635af414af2ddc541352078766ce57a9d8ded601
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/277983
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
I've sampled (eagerly) reading the VM platform, a compilation of
dart2js, a compilation of "flutter gallery" and a compilation of a big
internal app, and reordered switch cases accordingly.
I can't measure any difference in runtime, but have a hard time
thinking it's not better.
I've included the tool that does the sampling.
Change-Id: If61c5a95265229c238020264010553f281fec49c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/267362
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
When loading the sdk, a compilation of dart2js and a big internal app
without lazy loading (but with useGrowableLists: false though that
part shouldn't matter) I see these changes:
Loading the sdk: Saving ~1.17 MB Public and ~0.33 MB Private.
A total of ~1.5 MB.
Loading a compile of dart2js: Saving: ~7.0 MB Public and ~1.1 Private.
A total of ~8.1 MB.
Loading a compile of a big internal app: Saving ~74.7 MB Public and
~25.4 MB Private.
A total of ~100 MB.
Specifically, when loading a big internal app I see these changes:
Change, without lazy loading (and useGrowableLists: false):
Current memory: -122.88 MB
Peak memory: -92.16 MB
Heap: -102.4 MB / -92.16 MB
_PublicNames: -74.75 MB (2 mio+ fewer)
_PrivateNames: -25.4 MB (800,000+ fewer)
Change, with lazy loading (and useGrowableLists: false):
Current memory: +10.24 MB (yes, more).
Peak memory: +10.24 MB (yes, more).
Heap: +2.2 MB / +2.5 MB (yes, more)
_PublicNames: -0.76 MB (20,000+ fewer)
_PrivateNames: -11.3 KB (some hundred fewer)
Change-Id: I710d966aacf2ab184139a1fb7e65e12551e830ab
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/266386
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Looking at only the amount of data used by interface types after
loading a dill completely (lazy loading disabled or everything read):
Loading the sdk: Saving ~3.3 MB.
Loading a compile of a simple flutter app: Saving: ~11.6 MB.
Loading a compile of dart2js: Saving: ~18.2 MB.
Testing on a big internal app I see savings of 200+MB.
In my tests it reduces the amount of interface types by a factor of between 7 and 12.
Looking at the VMs reported memory, peak memory and heap usage, without
lazy loading for the big internal app we're talking ~200 MB savings,
with lazy loading (without loading anything) we're generally
talking a ~10MB saving (process current an peak memory,
but where the heaps total capacity was ~4 MB bigger).
https://github.com/dart-lang/sdk/issues/50161
Change-Id: Ic6601e907fb3127694f54e0865fe7c5a7057d9f5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/266383
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Nate Biggs