Struct Condition

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pub struct Condition {
    pub message: Vec<String>,
    pub kind: ConditionKind,
    pub class: Option<Vec<String>>,
    pub call: Option<Language>,
    pub parent: Option<RCondition>,
    pub trace: Option<List>,
}

Expand description

Rust-native representation of an R condition.

This is the primary type to work with. Construct one via ConditionBuilder::default() and convert it to R types via the From/Into impls. To read a condition from R, use TryFrom<Robj> or TryFrom<List>.

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§message: Vec<String>

The condition message. Corresponds to the message character vector in R.

§kind: ConditionKind

The base kind of condition, used to set the R class hierarchy.

§class: Option<Vec<String>>

User-defined subclasses prepended to the base classes. None means no custom classes beyond those implied by kind.

§call: Option<Language>

The call that triggered the condition, or None for NULL.

§parent: Option<RCondition>

An optional parent condition, used to chain conditions with rlang.

§trace: Option<List>

An optional traceback. The structure is not validated.

Trait Implementations§

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impl Clone for Condition

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fn clone(&self) -> Condition

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for Condition

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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 From<Condition> for List

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fn from(value: Condition) -> Self

Converts to this type from the input type.

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impl From<Condition> for RCondition

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fn from(value: Condition) -> Self

Converts to this type from the input type.

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impl From<Condition> for Robj

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fn from(value: Condition) -> Self

Converts to this type from the input type.

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impl PartialEq for Condition

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fn eq(&self, other: &Condition) -> bool

Tests for self and other values to be equal, and is used by ==.

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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

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impl TryFrom<&List> for Condition

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type Error = Error

The type returned in the event of a conversion error.

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fn try_from(list: &List) -> Result<Self, Self::Error>

Performs the conversion.

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impl TryFrom<&Robj> for Condition

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type Error = Error

The type returned in the event of a conversion error.

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fn try_from(value: &Robj) -> Result<Self, Self::Error>

Performs the conversion.

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impl TryFrom<List> for Condition

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type Error = Error

The type returned in the event of a conversion error.

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fn try_from(value: List) -> Result<Self, Self::Error>

Performs the conversion.

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impl TryFrom<RCondition> for Condition

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type Error = Error

The type returned in the event of a conversion error.

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fn try_from(value: RCondition) -> Result<Self, Self::Error>

Performs the conversion.

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impl TryFrom<Robj> for Condition

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type Error = Error

The type returned in the event of a conversion error.

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fn try_from(value: Robj) -> Result<Self, Self::Error>

Performs the conversion.

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impl StructuralPartialEq for Condition

Auto Trait Implementations§

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impl UnwindSafe for Condition

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> 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, U> Into 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
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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