Commit Graph

264 Commits

Author SHA1 Message Date
Johnni Winther 9bd9b3ccd6 [kernel] Use List.generate instead of List.filled in ast_from_binary.dart
In preparation for null safety migration, List.filled is replaced
with List.generate in ast_from_binary.dart where the element can be
created by a simple function expression.

Change-Id: I17bc68edebb8dc7d8918d87e9cdc38a9a8711682
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/179761
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2021-02-09 13:58:03 +00:00
Dmitry Stefantsov 63737581f8 [cfe] Encourage the use of the const NeverType objects
TEST=Covered by existing test base.
Change-Id: Ie858bd5a765d71fa4095eab3373a6ecdb063b260
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/183006
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2021-02-08 10:36:40 +00:00
Johnni Winther 6ce8d74761 [cfe] Add Function.futureValueType and serialize Let.fileOffset
Serializing Let.fileOffset supports positions in stacktraces resulting
from null aware expressions, like `if (o?.foo) ...` when `o` is `null`.

Adding Function.futureValueType supports the proper backend
implementation for the fix in
https://dart-review.googlesource.com/c/sdk/+/181303

Closes #44654

TEST=existing

Change-Id: Ie5939a248d3d8bf41388e8f435e4ba4195afeabd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182269
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
2021-02-04 14:06:47 +00:00
Johnni Winther 2761782d60 [kernel] Move switch cases to helpers in ast_from_binary
Change-Id: If3e2854cd6f7118179766e179348fb02227f9798
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/181384
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2021-01-27 18:56:59 +00:00
Johnni Winther 34fb48bb8a [kernel,front_end] Migrate first wave of pkg/kernel and pkg/front_end
Migrates libraries dependent only on already migrated libraries.

Change-Id: I0e85ee8dbc2afce031b92e0009e71c206a55af28
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/179502
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
2021-01-18 15:40:21 +00:00
Jens Johansen 4ea0bae02a [kernel] Tools and fixes wrt lazy loading and reachability
Change-Id: I191d338097b09ff2211d6d14c6013632190de629
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/178980
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2021-01-13 14:20:28 +00:00
Johnni Winther b4d4316de0 [cfe] Rename stub kinds
ForwardingStub -> AbstractForwardingStub
ForwardingSuperStub -> ConcreteForwardingStub
MixinStub -> AbstractMixinStub
MixinSuperStub -> ConcreteMixinStub

TEST=refactoring

Change-Id: Ice76a41ce8e1071f553ed8fd3ecbb29c97377161
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/177129
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-12-29 16:54:55 +00:00
Johnni Winther 60702d4158 [cfe] Make field assignability immutable
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>
2020-12-28 16:11:14 +00:00
Johnni Winther 52db62dd65 [cfe] Use MixinSuperStub
This CL adds stub for each concrete mixed in member into mixin
applications. The body of the stub calls the original member via
a super call.

This addition means that resolution of super access now use the
stub and not the original declaration as the target, which means
that it will be correct even when mixed in members are cloned. For
this reason, dart2js no longer needs to perform its own super
member resolution.

When a super call targets a mixin super stub (after cloning) it
can be optimized away by redirecting the call to the `stubTarget`
of the call. This optimization is performed in dart2js.

Since dart2js now uses the correct super target, its runtime
mixin application needs to avoid overriding members already
declared in the mixin application. These members are the
forwarding super stubs which ensure that correct runtime types
when members with covariant parameters are implemented.


Change-Id: Iab71ffcc400aa6a683987bc20b9553a263ebc8e1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/176526
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
2020-12-25 23:32:17 +00:00
Sigmund Cherem f376642572 [cfe]: include path to .dill file on version mismatch error messages
Change-Id: I8862abd55c111de2c81c5000539fb69268dcac06
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/176921
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Sigmund Cherem <sigmund@google.com>
2020-12-23 16:31:51 +00:00
Johnni Winther 5dbb6e245b [kernel,cfe,ddc] Add new method invocation node to package:kernel
This adds
* InstanceInvocation, DynamicInvocation, FunctionInvocation, and
   LocalFunctionInvocation, EqualsCall, and EqualsNull as a future
   replacement for MethodInvocation.
* InstanceGet, DynamicGet, InstanceTearOff, and FunctionTearOff as a
   future replacement for PropertyGet
* InstanceSet and DynamicSet as a future replacement of PropertySet
* StaticTearOff as an addition to StaticGet

TEST=pkg/front_end/test/binary_md_vm_tags_and_version_test.dart

This CL combines
* https://dart-review.googlesource.com/c/sdk/+/171729
* https://dart-review.googlesource.com/c/sdk/+/172649
* https://dart-review.googlesource.com/c/sdk/+/172650
* https://dart-review.googlesource.com/c/sdk/+/172651

using the initial encoding fo EqualsCall and EqualsNull

Change-Id: I98e020b5f2b405a812663bdcd2c05aba8efa74c8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/175480
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-12-14 10:55:48 +00:00
Jens Johansen 739393b290 [kernel] Fix and test readComponentSource
This was broken after constant coverage was recorded in dill because
reading the source then needed to have the link table too (which it
doesn't have when using readComponentSource).

Fixes https://github.com/flutter/flutter/issues/71851.

Change-Id: I90b6a185abd133c7d08fd335f69faf634684738b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/175724
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-12-11 11:57:58 +00:00
Lasse R.H. Nielsen 6e29700e16 Update List constructor documentation, deprecate constructor.
Emphasize that the operation is going away,
and mark constructor as deprecated.

TEST= Refactoring+deprecation only, covered by existing tests.

Change-Id: I82aa044cd2cf7bf347b624371399f44bda8f4a07
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/173261
Commit-Queue: Lasse R.H. Nielsen <lrn@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Nate Bosch <nbosch@google.com>
2020-12-07 16:20:28 +00:00
Johnni Winther d51ab9b62a [cfe] Add ProcedureStubKind
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>
2020-12-02 16:35:58 +00:00
Jens Johansen 27ed7912af [kernel] Constant coverage recorded in dill
This adds the recorded constant coverage to the dill file.

runtimes for constant evaluation:
dart2js: No difference proven at 95.0% confidence
flutter gallery: No difference proven at 95.0% confidence
big internal app: No difference proven at 95.0% confidence

sdk sizes:
vm: ~0.0182%
dart2js: ~0.0137%
flutter: ~0.0197%

compile sizes:
dart2js: ~0.0179%
flutter gallery: ~0.0162%
big internal app: ~0.0414%

TEST=test was fixed.

Change-Id: I347751e4d96d4d62140d26ebe37960f46a0dfbfa
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/171948
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-12-01 12:30:14 +00:00
Johnni Winther 79f36c9d49 [kernel] Rename readUInt to readUInt30 to match corresponding write-method.
TEST=Refactoring

Change-Id: I455c498065785909fb175a0b5fa82bd9d5b38f1f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/173524
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
2020-11-24 08:50:38 +00:00
Jens Johansen 0576d64a67 [CFE][kernel] Set parents on typedef children
Change-Id: Iccdd2b0c4c0062abc4e0cf50a2feadc4487941b7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/172563
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2020-11-17 17:52:18 +00:00
Dmitry Stefantsov ffc5ea67a1 [cfe] Read Null in a supertype position as an InterfaceType
Change-Id: I64927f996eee9e6928ee3a4303b39be4328ee0b8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/171727
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
2020-11-12 16:51:07 +00:00
Johnni Winther b38821f39d [kernel] Enforce lints in pkg/kernel
Change-Id: I954f7632f22b552febed2a3140f81245277cb050
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/171581
Reviewed-by: Jens Johansen <jensj@google.com>
2020-11-11 12:51:28 +00:00
Johnni Winther 1930c07cd7 [cfe] Add flags to MethodInvocation and fileEndOffset to Block
The CL add a 'flags' to MethodInvocation with the properties isInvariant
and isBoundsSafe. The former is used for to marks safe calls in unified
collection encoding. Both can be used further by backends.

The CL also adds a 'fileEndOffset' to Block. This is current set for
block declared in used code.

In response to https://github.com/dart-lang/sdk/issues/43994
and https://github.com/dart-lang/sdk/issues/43965

Change-Id: I579fc2928331465dfc2c152ccfd21297b12cfdd3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/170695
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-11-09 07:36:44 +00:00
Dmitry Stefantsov d54e2bb568 [cfe,ddc,dart2js,vm] Add NullType
This CL is the sum of the following 5 CLs:
* https://dart-review.googlesource.com/c/sdk/+/170342/
* https://dart-review.googlesource.com/c/sdk/+/170344/
* https://dart-review.googlesource.com/c/sdk/+/170345/
* https://dart-review.googlesource.com/c/sdk/+/170346/
* https://dart-review.googlesource.com/c/sdk/+/170347/

The reason for landing the 5 CLs as one CL is to prevent potential
troubles with bisecting over the branch because the change is fully
functional only with all 5 CLs.

Closes #40122.

TEST=Verified by changes in .expect files in pkg/vm/.
Bug: https://github.com/dart-lang/sdk/issues/40122
Change-Id: Ib8197802fdc69694387ae47ac990c58b3aaab7a5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/170689
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-11-06 12:43:52 +00:00
Jens Johansen 9ec87c2da0 [kernel] Field has 2 references
Change-Id: I9c946119e55256b9fbcbf3076ea008aaa1312e86
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/168949
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-11-03 16:02:16 +00:00
Jens Johansen 332ce76055 [CFE][kernel] Add 'invalid' nnbd mode; use when trying to out out when compiling in strong mode
Change-Id: I3d1a8da4378cd59e733fc796df38ae98aaf59d6d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/169881
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-11-03 14:12:56 +00:00
Johnni Winther 34cedb980c [kernel] Make Procedure.kind final
Change-Id: I1a97c483bd0110061f4a60d26d28ab625dbbc00b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/169220
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-10-27 13:56:38 +00:00
Jens Johansen 2928af2b12 [kernel] Remove unused Class.level, ClassLevel enum and shift Library.flags down
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>
2020-10-27 12:59:33 +00:00
Jens Johansen bee48f6ed6 [CFE][kernel] Add more checks for NNBD settings mismatch
* When initializing from a dill in the incremental compiler check that
  the nnbd mode matches what we're asked to compile.
  If they don't, silently do not initialize from the file.
* When serializing and deserializing, assert that the individual
  libraries match the component compilation mode.
* When appending dill libraries in the CFE, assert that they match
  what we're asked to compile.
* Remove NonNullableByDefaultCompiledMode.Disabled -- it's not a thing
  anyway.

https://github.com/flutter/flutter/issues/68901

Change-Id: I2e68f17cb3a065c4352e4db7c8aee3c13747f23a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/169080
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2020-10-26 15:23:56 +00:00
Anna Gringauze f04bc85e4f Refined scope calculation in expression compiler
- make sure nested blocks scopes are visited
- make sure variable definitions do not leak beyond block scopes
- properly collect scopes for loops, if statements, constructors
- add calculation of fileEndOffsets for blocks
- save block file offsets to dill
  - update binary format version
  - change kernel readers and writers to read and write block offsets
  - change vm readers to read and block offsets for new version
- add missing fileOffsets and fileEndOffsets on functions for
  late fields
- add missing fileOffsets and fileEndOffsets on functions for
  extensions
- add errors on failures to find scope
- find libraries for private fields correctly
- add more expression compilation tests
- add test to verify fileOffsets and fileEndOffsets are set for
  SDK summary (will add full dill tests later)

Closes: https://github.com/dart-lang/sdk/issues/40278
Related: https://github.com/dart-lang/sdk/issues/34942

Change-Id: I5bc1bb645543045b689d8d61069ee77dc4ee9025
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/167541
Commit-Queue: Anna Gringauze <annagrin@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-10-20 01:44:52 +00:00
Johnni Winther 8b07d1902c [kernel] Remove DirectPropertyGet/DirectPropertySet/DirectMethodInvocation
These nodes are no longer used.

Change-Id: I40c8df7376f0c40a4122c22d934fb3c6f6fd520d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/165902
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-10-03 19:15:41 +00:00
Jens Johansen fc7de901ee [kernel] Make LogicalExpression operator an enum (and rename)
Change-Id: I6054e8e44133d2419582d74700c4223d51495978
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/165606
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2020-10-02 09:41:12 +00:00
Johnni Winther f4501b6e83 Reland "[kernel] Rename Name.name to Name.text"
Including a deprecated getter to avoid breaking dependent code outside
the Dart repo.

Change-Id: I365957b7c2da6e0cb5c71eb8d2906b0dc6ff18ec
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/163062
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-09-17 06:10:49 +00:00
Johnni Winther 644df9b9fb Revert "Reland: [kernel] Rename Name.name to Name.text"
This reverts commit c430a0ac0b.

Reason for revert: Will break flutter_frontend_server when rolled into google3

Original change's description:
> Reland: [kernel] Rename Name.name to Name.text
> 
> Change-Id: I5240b0ff09faf35184998920202d7600dc97766d
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/162746
> Reviewed-by: Johnni Winther <johnniwinther@google.com>
> Commit-Queue: Johnni Winther <johnniwinther@google.com>

TBR=jensj@google.com,johnniwinther@google.com

Change-Id: Ib6961f49dd416171c5d5935c490d79d6f7be779e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/162748
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-09-16 08:22:55 +00:00
Johnni Winther c430a0ac0b Reland: [kernel] Rename Name.name to Name.text
Change-Id: I5240b0ff09faf35184998920202d7600dc97766d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/162746
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-09-16 07:42:42 +00:00
Daco Harkes 7302e01a79 Revert "[kernel] Rename Name.name to Name.text"
This reverts commit 3ff8dd2f51.

Reason for revert: Fails all CI builders. Possibly something landed
in the mean time.

Original change's description:
> [kernel] Rename Name.name to Name.text
> 
> Change-Id: I93162fb387ba123b949e19a7829bd5614845b15d
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/162722
> Reviewed-by: Jens Johansen <jensj@google.com>
> Commit-Queue: Johnni Winther <johnniwinther@google.com>

TBR=jensj@google.com,johnniwinther@google.com

Change-Id: I2ffe526dabf37ae09d5e4ab1fbe514925f6e8768
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/162744
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
2020-09-15 15:21:35 +00:00
Johnni Winther 3ff8dd2f51 [kernel] Rename Name.name to Name.text
Change-Id: I93162fb387ba123b949e19a7829bd5614845b15d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/162722
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-09-15 14:27:22 +00:00
Johnni Winther 65e48e423a [cfe] Add a member signature origin to member signatures
Adds a member signature origin to member signatures and includes
an additional reference to these in MethodInvocation, PropertyGet,
PropertySet, etc.

This enables the VM to bypass the member signatures when loading the
AST.

Change-Id: I5cae11f4434bc052d0ba0acf0670dd002c6f3df1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/157498
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-08-11 08:16:59 +00:00
Clement Skau 0ce83987d6 Reland "[SDK] Adds an SDK hash to kernels and the VM."
Note: This is a reland of https://dart-review.googlesource.com/c/sdk/+/150343

Adds a new SDK hash to kernels and the VM which is optionally checked
to verify kernels are built for the same SDK as the VM.
This helps catch incompatibilities that are currently causing
subtle bugs and (not so subtle) crashes.

The SDK hash is encoded in kernels as a new field in components.
The hash is derived from the 10 byte git short hash.

This new check can be disabled via:
  tools/gn.py ... --no-verify-sdk-hash

This CL bumps the min. (and max.) supported kernel format version,
making the VM backwards incompatible from this point back.

This also bumps the min. and current ABI version.

Bug: https://github.com/dart-lang/sdk/issues/41802
Change-Id: I2f85945045a603eb9dcfd1f2c0d0d024bd84a956
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152802
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-07-07 06:08:20 +00:00
asiva bb8d145616 Revert "[SDK] Adds an SDK hash to kernels and the VM."
This reverts commit edde575dcd.

Reason for revert: Breaks the Dart to Flutter roll and golem

Original change's description:
> [SDK] Adds an SDK hash to kernels and the VM.
>
> Adds a new SDK hash to kernels and the VM which is optionally checked
> to verify kernels are built for the same SDK as the VM.
> This helps catch incompatibilities that are currently causing
> subtle bugs and (not so subtle) crashes.
>
> The SDK hash is encoded in kernels as a new field in components.
> The hash is derived from the 10 byte git short hash.
>
> This new check can be disabled via:
>   tools/gn.py ... --no-verify-sdk-hash
>
> This CL bumps the min. (and max.) supported kernel format version,
> making the VM backwards incompatible from this point back.
>
> Bug: https://github.com/dart-lang/sdk/issues/41802
> Change-Id: I3cbb2d481239ee64dafdaa0e4aac36c80281931b
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150343
> Commit-Queue: Clement Skau <cskau@google.com>
> Reviewed-by: Jens Johansen <jensj@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>

TBR=kustermann@google.com,jensj@google.com,cskau@google.com

Change-Id: I34cc7d378e2babdaaca4d932d19c19d0f35422fc
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: https://github.com/dart-lang/sdk/issues/41802
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152703
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
2020-06-26 18:54:17 +00:00
Clement Skau edde575dcd [SDK] Adds an SDK hash to kernels and the VM.
Adds a new SDK hash to kernels and the VM which is optionally checked
to verify kernels are built for the same SDK as the VM.
This helps catch incompatibilities that are currently causing
subtle bugs and (not so subtle) crashes.

The SDK hash is encoded in kernels as a new field in components.
The hash is derived from the 10 byte git short hash.

This new check can be disabled via:
  tools/gn.py ... --no-verify-sdk-hash

This CL bumps the min. (and max.) supported kernel format version,
making the VM backwards incompatible from this point back.

Bug: https://github.com/dart-lang/sdk/issues/41802
Change-Id: I3cbb2d481239ee64dafdaa0e4aac36c80281931b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150343
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-06-26 13:35:42 +00:00
Dmitry Stefantsov 929d5e4a98 [cfe,ddc,dart2js,vm] Add FutureOrType
This CL is the sum of the following 5 CLs:
* https://dart-review.googlesource.com/c/sdk/+/149297/
* https://dart-review.googlesource.com/c/sdk/+/149299/
* https://dart-review.googlesource.com/c/sdk/+/149320/
* https://dart-review.googlesource.com/c/sdk/+/149321/
* https://dart-review.googlesource.com/c/sdk/+/149323/

The reason for landing the 5 CLs as one CL is to prevent potential
troubles with bisecting over the branch because the change is fully
functional only with all 5 CLs.

Closes #40123.

Bug: https://github.com/dart-lang/sdk/issues/40123
Change-Id: Ice52250a98acfe455b1d7fa5bb0624c115ca5dac
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150934
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-06-15 12:18:46 +00:00
Jens Johansen 0f80f51859 [kernel] Allow merging nnbd disabled + nnbd weak
Allow loading a dill that contains both nnbd disabled and nnbd weak.

Fixes https://github.com/flutter/flutter/issues/58126

Change-Id: Ic188bd1d377aa9d660e8803869713342f3a814c6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149424
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2020-05-29 14:40:36 +00:00
Jens Johansen 857fca710f [kernel/VM] Fix 'infinite' loop with memory crash on specific invalid dill
The dill file has an index at the end. The last 4 bytes of that index is
a size that indicates how big the file is. This is done to support
concatenated dill files. If the dill is invalid and the size is read as 0
both the VM and the dart kernel reader will go into an infinite loop where
it allocates another list entry on every loop iteration (making the whole
loop not infinate because we will run out of ram soon enough).

This CL fixes the issue by checking the size to be possitive.

Change-Id: I42da0557c6d4a274fdbe1a729fdaf5b8f149b187
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148538
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2020-05-26 08:24:05 +00:00
Jens Johansen 53ac4d53f2 [CFE] Set compilation mode if no main found
Change-Id: I2c3121e54f6c12b7ecdd8784851ca0611ff0b9d8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148401
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-05-20 10:29:42 +00:00
Aske Simon Christensen 8800e65ae1 [kernel] Specialized string (de)serialization.
This makes the string (de)serialization independent of the core library
UTF-8 encoder/decoder so we can change that without affecting kernel
serialization.

It also speeds up serialization and deserialization by a few percent.

Change-Id: I347e471ed0174cc5cb191335dd7c47e6eb3dad59
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/140293
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Commit-Queue: Aske Simon Christensen <askesc@google.com>
2020-04-22 11:46:24 +00:00
Jens Johansen 4084c4cc24 [kernel/CFE] Use kernel 'Version' class for versions
Define a "Version" class in kernel that allows easy comparison between
versions (e.g. a < b, a >= b etc).

Use this Version class in CFE.

Change-Id: I2f382e7bb3c2083258743b9b66a909a88d575dbc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144283
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2020-04-21 09:44:52 +00:00
Jens Johansen a85a7fc254 [kernel/CFE] Better mixed compilation mode handling
* Throw a specific error on mixed compilation mode; let the incremental
  compiler ignore that error when trying to initialize (i.e. it doesn't
  initialize from it, but it doesn't show any warning either).
* Allow some mixed mode stuff: Eventually the SDK should be in agnostic
  mode, so we should allow mixing agnostic with non-agnostic.

Fixes #41493.

Change-Id: Idb33fb31afe6bbba6d74134cb722ca825751898b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143583
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-04-17 10:22:46 +00:00
Johnni Winther 32f82b5852 [CFE] Add NNBD compilation mode into kernel component
Fixes https://github.com/dart-lang/sdk/issues/41311

Change-Id: I2f4345f8ca7a31da705fcae37a28a8b801feb5e3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142149
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-04-06 14:00:01 +00:00
Johnni Winther 54c8066f6f [cfe] Add new flags to AsExpression and IsExpression
Change-Id: I31eba9b4ced051a1067945fd68e60a09b1fa6ed7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/133100
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-01-31 19:55:22 +00:00
Jens Johansen 1c3468a646 [kernel] Remove Library.isExternal
Change-Id: I6638b915c1189838e7081069a0075e4ecd9ee9d0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/125600
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2019-12-02 09:24:42 +00:00
Dmitry Stefantsov e4a60912a7 [cfe] Use library's NNBD opt-in status while serializing supertypes
Change-Id: Id1ab5fd9a36b4aadb213febb0e1ae2eba968244d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/124331
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
2019-11-08 10:24:36 +00:00
Dmitry Stefantsov b4554c1215 [cfe] Make nullability a required parameter for types
Change-Id: Id787291294cafb15cf4ecad4a9db9da4c6066638
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/124135
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
Auto-Submit: Dmitry Stefantsov <dmitryas@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2019-11-07 13:24:47 +00:00