This is in preparation to migrate package:kernel to null safety.
For the visitor interfaces to support non-nullable return types, the
implementations must avoid using `null` as return value in its base case.
TEST=Refactoring
Change-Id: I9f9b318982148d844be9826a5f8c88374a9fc402
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/172180
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Tests are now run over entire libraries instead of their sub-trees
that are deemed to be ready for the serialization by the verifier.
The update revealed two scoping bugs. This CL fixes them as well,
namely the following:
* Result expression of a block expression should be in the scope of
the block. That is, the variables declared in the block are
visible in the result expression.
* Local function declarations should be visible in the blocks they
are declared in. Accidentally, the Bind combinator was used
instead of Rebind, resulting in local functions being visible in
their own bodies, but not in the blocks they are declared in.
Change-Id: I856045464caa934228d5f259a4d2d582e77deb88
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/155124
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
The future non-basic version is to include the following:
* adding missing annotations on nodes
* adding URIs and file offsets to the nodes
* adding nullability markers to types
* stylistic changes
* optimizations
* better surface syntax
* better error messages
Change-Id: If2fc51e4932d9043dd1719b766bd23ff4e0fc1ad
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/154001
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
Supplementary changes for handling Classes done in this CL are the
following:
* handling Supertypes
* handling Constructors
* handling remaining kinds of Procedure
* serializing AsyncMarker the same way as flags
* eliminating the need to wrap flags into IntLiteral
Change-Id: Id69c6e37f093cf80206f4657b649f79c75484775
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/154000
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
The flags on the fields are serialized as lists of flag names,
allowing for any combination of the flags in any order. Similar
technique is used in this CL to serialize the flags on Procedures and
VariableDeclarations. This is in the contrast with the previous
approach for those nodes, when the flags were the part of the
serialized name of the node (such as "static-method" for static
Procedures or "final" for final VariableDeclarations).
Change-Id: I02eb5ac92f6273542f08f269aee8e6519d3085e9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/153766
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
This CL adds round-trip serialization support for FunctionDeclarations
and the remining kinds of VariableDeclarations, completing the support
for statements. Additionally, the CL fixes a variable scope issue in
Catch clauses, namely that the exception and the stack trace variables
should be visible in the body.
Change-Id: I3843d491b85a65c4953d6fc10a59ecbde5017029
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/153611
Reviewed-by: Johnni Winther <johnniwinther@google.com>
In addition to supporting the nodes, the notion of Binder is
reworked. It doesn't store the computed local distinct name on the
node itself now, as it's not always possible (which is the case of
LabeledStatement), but keep it in a map.
Change-Id: I04c08875cbcac3a547d62afbe5b17f023e6f1035
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/153342
Reviewed-by: Johnni Winther <johnniwinther@google.com>
This CL adds a Node.toText method together with an AstPrinter. These
facility and better toString implementation on AST nodes while allowing
for toString independent printing of AST to use in testing. This also
add support for an integrated toString of custom/internal nodes.
Some work is still needed in bringing the toString implementation on
all nodes to the old quality, and not all internal nodes have
customized textual representations yet. This work is left for future
CLs.
Change-Id: Ib0bf8a0bc02f489dfacdc8aa5f96da9c52f26058
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150923
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
For some types it makes sense to distinguish between nullability as a
property of including null and the declared nullability, such as for
type-parameter types and FutureOr types. This CL introduces the
separation between the two concepts. The plan is to use that when
implementing FutureOrType.
Bug: https://github.com/dart-lang/sdk/issues/40123
Change-Id: I90b45bea768e89c213d021d360a481d38377c682
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/147903
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
The support is added for the follwing statements:
* YieldStatement
* Block
* VariableDeclaration (as a statement)
* IfStatement
* EmptyStatement
+ improve diagnostics in related unit tests
Change-Id: Ib738227c6e8c1963aeaee52630953e07cef4b093
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/146800
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
* Refactor a test to make it easier to extend it later.
* Allow the crashing reproduction minimizer to search for a new target
if it finds another interesting crash.
* Fix update_expectations tool to include textual_outline
* Fix leakingDebugToString on Library
Change-Id: I9a59151f2ad5c2d91b4cbbe10d864fe9928221eb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/146804
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
The CL reduces the number of false positive cases in the round-trip
serialization unit testing by refining the verifier analysis. Not it
doesn't attempt to make the round trip over the sub-trees containing
free variables.
Change-Id: Ib6fb2e72f7543ea7d99c5273c337801f3ad1bec4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144285
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
This CL also includes the following changes:
- The .registerTags() method is added to the Case combinator.
- The actual canonical names' root is passed into the deserializer.
- Some text serialization failures are fixed and the corresponding
status entries in text_serialization.status removed.
Change-Id: I222dfa3fc348dddf83e0c6edb92f15d08b8e73e9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143803
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
This is a bare-bones implementation (and test) for having an explicit
toString on all `Node`s.
This can then be extended as-needed to better suit our debugging
purposes. It's not allowed to leak, though.
Change-Id: I8d3f5a9cd13b292ed7a6bf33762e507286f3fa7d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/139805
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Johnni Winther