This CL extracts recovery for invalid library names into a new
subclass of IdentifierContext. This same approach will be used in
subsequent CLs to improve error messages and recovery when parsing
identifiers in other situations.
Change-Id: I03987f4e4bbe0f61f88adb3028a87e41d7dc7eb3
Reviewed-on: https://dart-review.googlesource.com/47541
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Dan Rubel <danrubel@google.com>
The source-based pipeline was simply iterating the token script of a
[Script] to generate a list of (line, [token positions]) tuples.
The kernel-based pipeline is not based on the source (and therefore also
not based on the token stream). Instead it's based on information from
two places:
a) The .dill file constains a delta-encoded list of line start file
offsets. This line starts array is attached to [Script] objects via
[RawScript.line_starts_].
b) It scans the *entire* isolate's program structure (i.e. libraries,
classes, functions and fields) and does abstract interpretation
of the kernel blob (ast) and saves the encountered token positions
on the side. Afterwards the token positions are merged together
with the line-starts from a) which then produces the list of (line,
token positions) tuples.
This CL changes b) to only do the abstract interpretation of
functions/fields which are relevant for the [Script] we are generating
the list of (line, [token position]) tuples for.
Nonetheless, b) will still iterate over the entire isolate's program
structure to find all possible elements belonging to a specific
[Script]. This is a separate issue which should be handled.
On one example it reduces time to get the coverage from ~ 35 seconds to 9.5
seconds (baseline from dart-v1 is around 6.5 seconds).
Issue https://github.com/dart-lang/sdk/issues/32562
Change-Id: I64cda28666c732938379cdf4b2ac62a2371cb3b7
Reviewed-on: https://dart-review.googlesource.com/47080
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Since the kernel reading helpers have been extended to not only work
with a kernel blob in C heap, but also work based on a [TypedData]
buffer in the VM heap, access to the [TypedData] buffer is on the hot
path now.
This hot path is slowing things down considerably, in particular due
to NoSafepoingScope's.
This CL removes a critical NoSafepoingScope when accessing the
[TypedData] in read-only mode. It also allows passing in the [Thread]
directly, to avoid TLS lookups.
Issue https://github.com/dart-lang/sdk/issues/32603
Change-Id: I91955bea5cd4eddbbd21c5d3bc6813504c2cece9
Reviewed-on: https://dart-review.googlesource.com/47222
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
During SSA construction in strong mode, types of local variables are
propagated (assigned) to phis which are 'loaded' from slots corresponding
to those local variables.
It is incorrect if phi was stored in a different local variable with a more
specific type and then reloaded.
After this change, type is propagated from local variable to phis only if
phi was created for this local.
Fixes https://github.com/dart-lang/sdk/issues/32597
Change-Id: I7d86c2ef79d14895c9b4c3651d0234b3f9c66173
Reviewed-on: https://dart-review.googlesource.com/47200
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Similar to earlier work that reworked parsing of variable declarations,
this CL reworks parsing of local constant declarations to use
TypeInfo rather than parseType. This simplifies and improves recovery,
and reduces the number of error messages in some recovery situations.
Change-Id: I32705bdba20a0cb7aee41c64510c4c2896a5ae68
Reviewed-on: https://dart-review.googlesource.com/47241
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Dan Rubel <danrubel@google.com>
Long ago I accidentally only made the change to _cfe.dart in the .json file and
not in the .yaml file (which is technically the source of truth).
Change-Id: I0e8abdc84b9b0f20019c712246493979debaf1cd
Reviewed-on: https://dart-review.googlesource.com/47323
Reviewed-by: Emily Fortuna <efortuna@google.com>
Commit-Queue: Sigmund Cherem <sigmund@google.com>
* fix for `invariant_booleans` when analyzing for loops with no condition
* new `avoid_types_as_parameter_names` lint
* new `avoid_renaming_method_parameters` lint
Change-Id: Iaafceba24f1b049a132464b78588d57e621c85d4
Reviewed-on: https://dart-review.googlesource.com/47300
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
This CL reworks parsing local variable and local function
declarations to improve recovery and error messages.
In addition, the fasta parser properly parses metadata
before a local function declaration.
Change-Id: Ia43c8bab3f3ce3b824390a4aa36d50b85f1ea9af
Reviewed-on: https://dart-review.googlesource.com/46952
Commit-Queue: Dan Rubel <danrubel@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
This comes up for dart2js when the location for dart2js_platform.dill is invalid
or when the file was not provided. Today dart2js produces a bad crash message in
that scenario, instead of a readable error.
I wanted to provide a better message, but I'm not sure I can. For example, I
wanted to say "SDK Platform file not found", but I can't because linked
dependencies can be used for other puposes.
Change-Id: I1739ec36dab16b2fd72552e5e7716cd573a8ebd0
Reviewed-on: https://dart-review.googlesource.com/46943
Commit-Queue: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Peter von der Ahé <ahe@google.com>
Régis Crelier