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pub struct FromList<T>(pub T);
Expand description

You can use the FromList wrapper to coerce a Robj into a list.

use extendr_api::prelude::*;
test! {
    let list = Robj::from(list!(1, 2));
    let vec : FromList<Vec<i32>> = list.try_into()?;
    assert_eq!(vec.0, vec![1, 2]);
}

Tuple Fields

0: T

Trait Implementations

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

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

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.