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Add support for inspecting objects in an isolate's object store - #4513
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The object store is used to provide easy and cheap access to important
VM objects within the VM. Examples of objects stored in the object store
include:
- Code stubs (e.g., allocation paths, async/await machinery)
- References to core classes (e.g., `Null`, `Object`, `Never`)
- Common type arguments (e.g., `<String, dynamic>`)
- References to frequently accessed fields / functions (e.g.,
`_objectEquals()`, `_Enum._name`)
- Cached, per-isolate data (e.g., library URI mappings)
The object store is considered one of the GC roots by the VM's garbage
collector, meaning that objects in the store will be considered live, even
if they're not referenced anywhere else in the program.
bkonyi
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kenzieschmoll
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kenzieschmoll
September 22, 2022 18:24
bkonyi
marked this pull request as draft
September 22, 2022 18:24
bkonyi
marked this pull request as ready for review
September 23, 2022 15:16
kenzieschmoll
approved these changes
Sep 26, 2022
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The object store is used to provide easy and cheap access to important VM objects within the VM. Examples of objects stored in the object store include:
Null,Object,Never)<String, dynamic>)_objectEquals(),_Enum._name)The object store is considered one of the GC roots by the VM's garbage collector, meaning that objects in the store will be considered live, even if they're not referenced anywhere else in the program.
The
Object Storetab under theObjectsVM tooling tab allows for users to inspect elements contained within the object store, where they may not necessarily be reachable from the program explorer. Tapping a link to an object store entry will display the entry in the object viewport and, if present in the program explorer, mark the relevantVMServiceObjectNodes as selected.