The result of deep_size_of_interned is incorrect

[gmryuuko]

The crate deepsize implements DeepSizeOf trait for all references. And it only calculates the size of the reference itself, not the size of the pointed-to object.

https://github.com/Aeledfyr/deepsize/blob/5deebe687695610e6038dc70753defbe7634d549/src/lib.rs#L421-L444

Therefore, we must manually dereference before calling deep_size_of.

internment/src/intern.rs

Line 79 in 1eb3a80

INTERN_CONTAINERS.with(|m: &mut HashSet<&'static T>| -> usize { m.deep_size_of() })

[gmryuuko]

#52

[droundy]

I won't have time to look at your pull request soon, but wanted to mention that you'll need to make sure to use the tricky "Context" to ensure that the same data doesn't get counted twice, if a data structure has two interned pointers to the same value. David Roundy

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[gmryuuko]

I won't have time to look at your pull request soon, but wanted to mention that you'll need to make sure to use the tricky "Context" to ensure that the same data doesn't get counted twice, if a data structure has two interned pointers to the same value. David Roundy
…
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The Context will be correctly passed to the objects in the HashSet. And added more test cases for Context.

https://github.com/droundy/internment/pull/52/files#diff-4d290cbd1a1b1f16004466de2efd9706f162a7c32da7ea4cdc1da8f590111da6R580