Trait FromFallibleIterator 

pub trait FromFallibleIterator<T>: Sized {
    // Required method
    fn from_fallible_iter<I, E>(iter: I) -> Result<Self, E>
       where I: IntoIterator<Item = Result<T, E>>;
}

Extension to FromIterator for fallible initialization.

Required Methods

fn from_fallible_iter<I, E>(iter: I) -> Result<Self, E>

where I: IntoIterator<Item = Result<T, E>>,

Initializes a new collection from a fallible iterator.

If the iterator returns an error or panics while initializing the sequence, any already initialized elements will be dropped and the error returned.

Unlike .collect::<Result<Self, E>>(), which short-circuits the source iterator on the first error before the collection’s FromIterator impl can verify the correct number of elements — causing a length-mismatch panic — this method handles the error and length check correctly.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T, N: ArrayLength> FromFallibleIterator<T> for Box<GenericArray<T, N>>

Available on crate feature alloc only.

fn from_fallible_iter<I, E>(iter: I) -> Result<Self, E>

where I: IntoIterator<Item = Result<T, E>>,

Implementors

impl<T, N: ArrayLength> FromFallibleIterator<T> for GenericArray<T, N>