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When evaluating an expressino at a breakpoint that's inside a closure, the closure may refer to anything it closes over. That includes the `this` from an enclosing method. So depending on whether a closure's parent chain is an instance method or a static method, the expression evaluation function is going to be an instance method or a static method. => We walk up the parent chain to determine the correct enclosing class. => This avoids making a Type object with a cid from a top-level class (see [0]) Handling this correctly will now try to get the `this` when invoking an eval function that has an enclosing instance method. Though we may often have "<optimized out>" the `this` (e.g. due to not capturing it in closure context chain). => We still allow running the expression evaluation function in this case, but only if the expression being evaluated doesn't access `this`. A similar issue occurs when trying to use variables in the eval expression that the closure didn't capture. This results in a confusing CFE compile-time error. This is a separate issue and tracked in [1]. => We update the test to distinuish the cases that this CL makes passing and those that are failing due to [1]. Fixes [0] https://github.com/dart-lang/sdk/issues/53061 See also [1] https://github.com/dart-lang/sdk/issues/53087 TEST=Fixes part of service/evaluate_activation_test failures Change-Id: I3bb24e7338c7b2f12d5340311d944cb59a455641 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/317540 Reviewed-by: Alexander Markov <alexmarkov@google.com> Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Martin Kustermann <kustermann@google.com> |
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