ChangeLogger

pacsea::ui::helpers::logging

Struct ChangeLogger 

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pub struct ChangeLogger<T> { /* private fields */ }
Expand description

What: Track the last logged state to avoid repeating identical debug lines.

Inputs:

  • T: A clonable, comparable state type to track between log attempts.

Output:

  • ChangeLogger: Helper that indicates whether a new log should be emitted.

Details:

  • Calling should_log updates the cached state and returns true only when the provided state differs from the previous one.
  • clear resets the cached state, forcing the next call to log.

Implementations§

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impl<T: PartialEq + Clone> ChangeLogger<T>

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pub const fn new() -> Self

What: Create a new ChangeLogger with no cached state.

Inputs:

  • None

Output:

  • A ChangeLogger ready to track state changes.

Details:

  • The first call to should_log after construction will return true.
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pub fn should_log(&mut self, next: &T) -> bool

What: Decide whether a log should be emitted for the provided state.

Inputs:

  • next: The next state to compare against the cached state.

Output:

  • true when the state differs from the cached value; otherwise false.

Details:

  • Updates the cached state when it changes.
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pub fn clear(&mut self)

What: Reset the cached state so the next call logs.

Inputs:

  • None

Output:

  • None

Details:

  • Useful for tests or after major UI transitions.

Trait Implementations§

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impl<T: PartialEq + Clone> Default for ChangeLogger<T>

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fn default() -> Self

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

Auto Trait Implementations§

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impl<T> Freeze for ChangeLogger<T>
where T: Freeze,

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impl<T> RefUnwindSafe for ChangeLogger<T>
where T: RefUnwindSafe,

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impl<T> Send for ChangeLogger<T>
where T: Send,

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impl<T> Sync for ChangeLogger<T>
where T: Sync,

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impl<T> Unpin for ChangeLogger<T>
where T: Unpin,

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impl<T> UnwindSafe for ChangeLogger<T>
where T: UnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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where T: Any + Send + Sync,

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Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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fn from(t: T) -> T

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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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where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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where S: Into<Dispatch>,

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