Enum ValueError 

#[non_exhaustive]
pub enum ValueError {
    Missing,
    Duplicate,
    Invalid(&'static str),
    ExpectedFile,
    ExpectedText,
}

Available on crate feature alloc only.

Why one field’s value did not convert. form! turns it into FormError::Extract with the field’s name.

Examples

use form_net::{FromField, ValueError};

let mut slot = <u8 as FromField>::Slot::default();
assert_eq!(u8::accept_text(&mut slot, "300"), Err(ValueError::Invalid("out of range")));

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Missing

A required field is absent.

Duplicate

A single-valued field was given twice.

Invalid(&'static str)

The value does not convert; the text says why.

ExpectedFile

Text was given to a file field.

ExpectedText

A file was given to a text field.

Trait Implementations

impl Clone for ValueError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ValueError

impl Debug for ValueError

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

Formats the value using the given formatter.

impl Eq for ValueError

impl PartialEq for ValueError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ValueError