Enum cuprate_database::RuntimeError

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pub enum RuntimeError {
    KeyExists,
    KeyNotFound,
    ResizeNeeded,
    TableNotFound,
    Io(Error),
}
Expand description

Errors that occur after successful Env::open.

There are no errors for:

  1. Missing tables
  2. (De)serialization

as cuprate_database upholds the invariant that:

  1. All tables exist
  2. (De)serialization never fails

Variants§

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KeyExists

The given key already existed in the database.

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KeyNotFound

The given key did not exist in the database.

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ResizeNeeded

The database memory map is full and needs a resize.

§Invariant

This error can only occur if Env::MANUAL_RESIZE is true.

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TableNotFound

The given table did not exist in the database.

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Io(Error)

Trait Implementations§

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impl Debug for RuntimeError

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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 Display for RuntimeError

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

Formats the value using the given formatter. Read more
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impl Error for RuntimeError

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fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any. Read more
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fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()
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fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)
Provides type-based access to context intended for error reports. Read more
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impl From<Error> for RuntimeError

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fn from(error: Error) -> Self

§Panics

This will panic on unrecoverable errors for safety.

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impl From<Error> for RuntimeError

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fn from(source: Error) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes

Size for each variant:

  • KeyExists: 0 bytes
  • KeyNotFound: 0 bytes
  • ResizeNeeded: 0 bytes
  • TableNotFound: 0 bytes
  • Io: 8 bytes