tree 8f1e8af797e9d4ee35f40ee50255bcac91743746
parent 0aad13db00bed03669f1684d8c0da4c4f64660f0
author Samir Jindel <sjindel@google.com> 1527792367 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1527792367 +0000

[vm/kernel] Fix bugs with expression evaluation in debug mode.

Fixes #33170: We had an assert that type variables are not bounded by "dynamic".
This assert was previously valid because the FE replaces "extends dynamic" with
"extends Object". However, it's not necessary in any way, and it's difficult to
access the Object type from outside the FE when synthesizing type parameters for
expression compilation.

Fixes #33171: The synthetic class generated during serialization to hold the
synthetic method may need to extend core library classes if the expression's
scope was within a core library class. In this case, the class finalizer needs
to avoid applying the restrictions on class extension to the synthetic class.

To facilitate this, we now use a single class name for all synthetic classes,
rather than copying the original class name. The name of the synthetic class has
no function at all, since the synthetic method is reparented to the original
class before execution.

Fixes #33239: The arguments descriptor passed to InvokeFunction for expression
functions which capture generic type parameters was using the wrong argument
count.

Fixes #33270: Use LookupClassAllowPrivate instead of LookupClass when resolving
the expression's scope in the VM.

Test Plan:

#33170: python tools/test.py -m debug -c dartk --strong service/evaluate_function_type_parameters_test
#33171: python tools/test.py -m debug -c dartk --strong service/eval_test
#33239: Updated "evaluate_function_type_parameters_test.dart".
#33270: Updated "eval_test.dart".

Change-Id: I376926bddd2224ec2322b43685d6c13831f1a8e7
Reviewed-on: https://dart-review.googlesource.com/56060
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>