Struct FieldBuilder 

pub struct FieldBuilder<Parent, Value, List> { /* private fields */ }

A builder to record parsing results for a field of the input.

Implementations

impl<Parent, Value, List> FieldBuilder<Parent, Value, List>

where Parent: ErrorBuilderParent<Value>,

pub fn value<T, E>( self, result: Result<T, E>, ) -> FieldBuilder<Parent, Value, List::Output>

where List: Append<T>, E: Error + Send + Sync + 'static,

Record a parsing result for the field.

pub fn value_ok<T>(self, value: T) -> FieldBuilder<Parent, Value, List::Output>

where List: Append<T>,

Record a value for the field.

This is infallible so it’s easy to insert values that do not need parsing in the ErrorAccumulator’s system.

pub fn with_previous<Valid, T, E>( self, validator: Valid, ) -> FieldBuilder<Parent, Value, List::Output>

where Valid: ListValidator<List, T, E>, List: AsRefTuple + Append<T>, E: Error + Send + Sync + 'static,

Run another validation step on the previously recorded Ok values if there were no errors yet.

In case an error was already recorded the validator is not executed.

For an example, see the docs of StructBuilder::with_previous().

pub fn on_ok<C>(self, constructor: C) -> BuilderFinisher<Parent, Value, List, C>

where List: ToTuple, C: Constructor<List::List, Value>,

Provide a Constructor to convert the recorded Ok values into the target type.

impl<Parent, Value> FieldBuilder<Parent, Value, Cons<Value, Nil>>

where Parent: ErrorBuilderParent<Value>,

pub fn finish(self) -> Parent::AfterRecord

Finish the builder and pass the builder’s final result to the parent builder.

Trait Implementations

impl<Parent: Debug, Value: Debug, List: Debug> Debug for FieldBuilder<Parent, Value, List>

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

Formats the value using the given formatter.