This adds the flag `isEnumElement` to the `Field` node and uses it
to recognize enum elements for the exhaustiveness computation on
switch statements.
Closes#49697
TEST=pkg/front_end/testcases/general/issue49697/main.dart
Change-Id: I21852f3b063329e043639c825054f538c8ed6536
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/255808
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
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>
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>
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>
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>
This CL changes the way dart: libraries are considered supported when
used in conditional imports or bool.fromEnvironment constant using
the "dart.library.*" values.
Library nodes now has an isUnsupported flag which is set according to
the "supported" property in the libraries specification. Furthermore
the Target now supplies a DartLibrarySupport interface that allows
targets to override whether dart: libraries are unsupported.
This allows the JIT/AOT to use the same platform file but still
consider dart:mirrors unsupported in AOT mode, and dart2js to consider
the internal library `dart:_dart2js_runtime_metrics` supported.
Furthermore, the internal handling is changed so that condition imports
and bool.fromEnvironments constants are computed through the same logic
for "dart.library.*" values, avoiding the need for passing these values
through the environment.
TEST=pkg/front_end/testcases/general/supported_libraries/main
Closes https://github.com/dart-lang/sdk/issues/48057
Closes https://github.com/dart-lang/sdk/issues/47814
Closes https://github.com/dart-lang/sdk/issues/47243
Closes https://github.com/dart-lang/sdk/issues/32657
Closes https://github.com/dart-lang/sdk/issues/36460
Change-Id: Ie8f8dff99167de64ced51b71d89918bf0f3bbd13
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/227020
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
The added field holds the interface signature type for a Procedure when
this is different from the class signature type (implied by the function
parameters and return type). This is needed for forwarding semi stubs
when its declared type is different from the called super member.
Closes https://github.com/dart-lang/sdk/issues/47072
TEST=pkg/front_end/testcases/general/implement_semi_stub.dart and more
Change-Id: I4a7cdc9d564fb0a59e7b06e83646b5410d8d82f5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/216420
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Chloe Stefantsova <dmitryas@google.com>
This adds a third reference to Field declaration, so that we know have
three references, one for each use case:
1) fieldReference used for initialization; in FieldInitializer and as
the key in the InstanceConstant.fieldValues map.
2) getterReference used for reading; in InstanceGet, StaticGet and
SuperPropertyGet
3) setterReference used for writing; in InstanceSet, StaticSet and
SuperPropertySet
TEST=existing
Change-Id: I223f130e808e7f19a831c1fe5e3a4725d1bcdc3b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/203770
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Previously constants were referenced via there relative binary offset,
i.e. a constant reference saying 42 meant at byte offset 42 relative to
the start of the constant table in the binary. This was done to be able
to (on the VM side) read the needed constants lazily. It meant, though,
that constants had to be stored in a map, mapping from the byte position
to the constant.
This change adds a level of indirection when needing the lazy reading,
but lets the constant references reference the constant number instead
so that a constant reference saying 42 means constant number 42,
i.e. constants can be stored in a list instead of in a map.
This is done on the dart side, but the VM still stores it in a map.
The level of indirection is a tabel next to the constant table where
each entry has constant size (4 bytes) from which one can read the
relative byte offset into the constant table from the constant number,
thus still being able to read needed constants lazily.
This CL also cleans up a leftover where for instance double constants
had their textual representation saved as a string in the string indexer
(and thus the output dill) even though they were never referenced.
File size changes:
* Platform: increses 7,816 bytes.
* Compile of dart2js (including platform): decreases 71,424 bytes.
Speed changes:
* Adding `UserTag`s to the code and looking at observatories cpu profile
on a `pkg/kernel/test/binary_bench.dart --golem AstFromBinaryLazy`
run of a compile of dart2js reading the constant table has gone
from ~10% to ~5%.
* Doing statistics on
`pkg/kernel/test/binary_bench.dart --raw AstFromBinaryLazy` run of a
compile of dart2js says -6.28169% +/- 4.97269%.
* Golem runs has nothing above the noise level.
It does say "AstFromBinaryLazy (Intel Xeon) -4.006% (0.4 noise)" and
"AstFromBinaryEagerP50 (Intel Core i5) -8.929% (0.6 noise)" though.
TEST=All tests running the VM tests this.
Change-Id: I07ead457527a4477de803ee55ba742f5557413d3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196925
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
This reverts commit 80102c981b.
Reason for revert: b/186359854
Original change's description:
> [vm] Switch datastream Write/WriteUnsigned to (S)LEB128.
>
> This reduces the number of variable-length integer encodings in our
> database from 2 to 1, and chooses the more standard one.
>
> TEST=Existing tests, in particular any that involve snapshots.
>
> Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-asan-linux-release-x64-try,vm-kernel-precomp-dwarf-linux-product-x64-try,vm-kernel-precomp-msan-linux-release-x64-try,vm-kernel-precomp-ubsan-linux-release-x64-try,vm-kernel-precomp-tsan-linux-release-x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-precomp-nnbd-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-simarm64c-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-debug-x64c-try,vm-kernel-precomp-linux-product-x64-try,vm-kernel-precomp-linux-release-x64-try
> Change-Id: Ia700158ac873ad32ac28c1027a669895961bc715
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196321
> Commit-Queue: Tess Strickland <sstrickl@google.com>
> Reviewed-by: Ryan Macnak <rmacnak@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
# Not skipping CQ checks because original CL landed > 1 day ago.
Change-Id: Idf32bdd879cf8bb7407f6dae764312140ad6eeb2
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-asan-linux-release-x64-try,vm-kernel-precomp-dwarf-linux-product-x64-try,vm-kernel-precomp-msan-linux-release-x64-try,vm-kernel-precomp-ubsan-linux-release-x64-try,vm-kernel-precomp-tsan-linux-release-x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-precomp-nnbd-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-simarm64c-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-debug-x64c-try,vm-kernel-precomp-linux-product-x64-try,vm-kernel-precomp-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196920
Reviewed-by: Ivan Inozemtsev <iinozemtsev@google.com>
Commit-Queue: Ivan Inozemtsev <iinozemtsev@google.com>
This reduces the number of variable-length integer encodings in our
database from 2 to 1, and chooses the more standard one.
TEST=Existing tests, in particular any that involve snapshots.
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-asan-linux-release-x64-try,vm-kernel-precomp-dwarf-linux-product-x64-try,vm-kernel-precomp-msan-linux-release-x64-try,vm-kernel-precomp-ubsan-linux-release-x64-try,vm-kernel-precomp-tsan-linux-release-x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-precomp-nnbd-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-simarm64c-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-debug-x64c-try,vm-kernel-precomp-linux-product-x64-try,vm-kernel-precomp-linux-release-x64-try
Change-Id: Ia700158ac873ad32ac28c1027a669895961bc715
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196321
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Function type parameters in occurring in constants were using an offset
based on the context in which the constant first occurred. This meant
that function type parameters occurring in a generic context would have
a different offset that those occurring in a non-generic context.
The loading of .dill in ast_from_binary would read all constants outside
the context and would therefore get the indices wrong on generic
function types.
This CL changes the encoding of these type parameters to always use
a fresh context.
Closes#45415
TEST=pkg/front_end/testcases/generic_metadata/from_dill/main.dart
Change-Id: Ifdaedb4581f1e022c908fc58a58ceac3d7b0900e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/193481
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
This removes the @fields and @=fields canonical name
encodings that allowed for encoding of conflicting members
and didn't support field<->getter/setter conversion
between dills or between outline and full dill.
TEST=existing tests+add aot expectation tests
Change-Id: I119b0c95f90e456356146cdc2d9241de4c1b4fff
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/186680
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
* Add InstanceGetterInvocation for getter/field invocation in web
backends
* Add localFunction getter to LocalFunctionInvocation
* Remove isNot from EqualsCall and EqualsNull - the encoding didn't
carry its weight.
* Remove uses of Name.name
* Remove BottomType code from VM
TEST=existing
Change-Id: I99d05d35b9ef193d092cc151c99ad472dbd60834
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/188725
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
This reverts commit 3892e95547.
Reason for revert: Breaks Flutter web
Original change's description:
> [cfe] Encode field references as @getters and @setters
>
> This removes the @fields and @=fields canonical name
> encodings that allowed for encoding of conflicting members
> and didn't support field<->getter/setter conversion
> between dills or between outline and full dill.
>
> TEST=existing tests
>
> Change-Id: Id15e58ad4d1847d2c98a688705e5945196146c6d
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/184783
> Commit-Queue: Johnni Winther <johnniwinther@google.com>
> Reviewed-by: Jens Johansen <jensj@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
Change-Id: I744e284b16e097fa0833c5bdf1bc7653f13bdf63
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/186147
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
This removes the @fields and @=fields canonical name
encodings that allowed for encoding of conflicting members
and didn't support field<->getter/setter conversion
between dills or between outline and full dill.
TEST=existing tests
Change-Id: Id15e58ad4d1847d2c98a688705e5945196146c6d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/184783
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
When handling hot reload via library tag handler's Kernel tag
VM must guarantee that external typed data it receives from the
embedder stays alive for as long as VM has any structures
referencing this kernel binary. This is achieved by attaching
original typed data to KernelProgramInfo objects containing
the views into it.
Unfortunately kernel::Reader APIs were somewhat unsafe: allowing
to construct reader object from Program's raw buffer and forget to
set the link betwen the reader and original typed data.
This created a situation where reloading using a multicomponent
Kernel binary would result in KernelProgramInfo objects without
link to the original typed data, which in turn leads to premature
finalization of external typed data and subsequent crashes
when trying to use delete kernel binary.
This CL reworks kernel::Reader API (by introducing kernel::ProgramBinary
wrapper) to make it safer and make sure that connection is preserved.
TEST=vm/cc/IsolateReload_RegressB179030011
Bug: b/179030011
Change-Id: I05f8c31c3cb8e67de6e94a20d9501a5f476b7e27
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182280
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Changes fields to be either mutable or immutable by construction.
This ensure that we don't create setter references for fields that
cannot be assigned to and is a prerequisite for replacing @fields/
@fields= canonical names with @getters/@setters.
TEST=existing expectation tests and verification
Change-Id: I70b9a504ee6f221b7c334ac02620feb0d5f7ae01
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/176665
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
Instead, split each old use into the following cases:
* If the TokenPosition value is expected to be a real token position,
then use TokenPosition::Pos().
* If the TokenPosition is being serialized in some way, then use
TokenPosition::Serialize() and change the place where the
TokenPosition is recreated to use TokenPosition::Deserialize().
* If the value of the TokenPosition is being printed for debugging
purposes, then just use TokenPosition::ToCString() instead.
That is, we try to pin down when token positions are expected to
be real vs. when other types of token positions can be found.
Another source of possible error when using token positions is to
convert between synthetic and real token positions. In the past,
synthetic token positions may have been based off real token positions,
but that is no longer the case. Thus, all methods that allow
that conversion have been removed, and instead there is a new static
method for constructing synthetic tokens from valid nonces.
This CL also makes it so that Pos() and relational operators on token
positions are only defined on real token positions, to avoid any
assumptions about what the value encoded in synthetic positions mean. To
help with cases where non-real token positions may occur, four helper
methods are added:
* TokenPosition::Min(a, b): A static method that returns the smallest
real token position provided. If neither `a` or `b` are real,
returns `a`.
* TokenPosition::Max(a, b): A static method that returns the largest
real token position provided. If neither `a` or `b` are real,
returns `a`.
* TokenPosition::IsWithin(start, end): Determines whether `this` falls
between `start` and `end` (inclusive). If `this` is non-real, then it
must be either `start` or `end` if synthetic, otherwise false.
Otherwise, we mimic the old style of range checking, which means that
non-real starts and ends are treated as less than every real token.
* TokenPosition::CompareForSorting(other): Unlike the relational
operators, provides a comparison between any types of token positions
for purposes such as sorting. Currently only used in the profiler.
It also changes TokenPosition::ToCString() to tag synthetic token
positions, so they can be distinguished from real ones at a glance.
TEST=Existing test suite on trybots, especially the observatory tests
which make heavy use of the debugger and the unit tests for the
profiler/source report modules.
Bug: https://github.com/dart-lang/sdk/issues/44436
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-linux-debug-x64-try,vm-kernel-linux-release-x64-try,vm-kernel-nnbd-linux-release-x64-try,vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-nnbd-linux-release-x64-try,vm-kernel-linux-product-x64-try,vm-kernel-precomp-linux-product-x64-try
Change-Id: Ic06aa0bc7a1f0fbac7257ed22ca5e7e0ccd7f3f2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/174924
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Front-end marks certain calls (currently in collection literals) as
not requiring covariant parameter checks (invariant).
VM can use that flag to generate calls through unchecked entry point.
TEST=vm/cc/StreamingFlowGraphBuilder_InvariantFlagInListLiterals
Change-Id: I8d0dc09ea4867f41d20f6d7b6ba9e0940ff555dd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/175880
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
The enum `ProcedureStubKind` together with the flag `isSynthetic`
replaces the flags `isForwardingStub`, `isForwardingSemiStub`,
`isNoSuchMethodForwarder` and `isMemberSignature`.
The semantics of the existing properties on `Procedure` is unchanged.
The new MixinStub and MixinSuperStub stub kinds are not used yet and
the stub target for NoSuchMethodForwarder is not set yet.
TEST=refactoring
Change-Id: I6e81970dbb4baf0229f43c2a0bf0d5e575e65043
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/174462
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
ClassLevel and Class.level have been unused for (at least) years.
This CL removes them.
Library.flags furthermore had the first bit unused after the 'external'
flag was removed (last year I think).
This CL shifts it down so the actual flags doesn't start at bit 1.
Change-Id: Ie0afd150cad331ea694bc5fe2a20aafed22916cc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/169202
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
Alexander Markov