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EventFilters

Struct EventFilters 

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pub struct EventFilters {
    pub count: Option<i32>,
    pub thread: Option<ThreadId>,
    pub instance: Option<ObjectId>,
}
Expand description

The three per-request modifiers every EventRequest.Set here can carry, in one value.

Bundled rather than passed as a trailing trio because they travel together on all four request builders and are the same concept in each — CONTEXT.md calls them filters: modifiers the debuggee applies, so a non-match produces no event at all. Keeping them in one place is also where the surprise lives, and it is per-kind rather than per-modifier: HotSpot accepts every one of these on every kind below and does not always apply them. See ADR-0027 for the measured table — an InstanceOnly on a METHOD_EXIT is accepted and ignored, on an EXCEPTION it works — and note that canUseInstanceFilters reads true either way, so the capability bit does not settle it.

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§count: Option<i32>

Count (1): report only the Nth occurrence, after which the debuggee deletes the request.

§thread: Option<ThreadId>

ThreadOnly (10): restrict to hits on one thread.

§instance: Option<ObjectId>

InstanceOnly (11): restrict to hits whose this is one specific object. An armed one pins that object in the debuggee until the request is cleared (measured; ADR-0027).

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impl Clone for EventFilters

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fn clone(&self) -> EventFilters

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for EventFilters

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impl Debug for EventFilters

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for EventFilters

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fn default() -> EventFilters

Returns the “default value” for a type. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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where U: From<T>,

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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type Error = Infallible

The type returned in the event of a conversion error.
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Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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