Struct TupleWriter 

pub struct TupleWriter<'a> { /* private fields */ }

Helper for writing tuple types to Eure documents.

Used within the closure passed to DocumentConstructor::tuple. Automatically tracks position, no manual index management needed.

Example

c.tuple(|t| {
    t.next("first")?;
    t.next(42)?;
    t.next(true)?;
    Ok(())
})?;

Implementations

impl<'a> TupleWriter<'a>

pub fn next<T: IntoDocument>(&mut self, value: T) -> Result<(), WriteError>

Write the next element, advancing position automatically.

Example

t.next("value")?;
t.next(123)?;

pub fn next_with<F, R>(&mut self, f: F) -> Result<R, WriteError>

where F: FnOnce(&mut DocumentConstructor) -> Result<R, WriteError>,

Write the next element using a custom writer closure.

Useful for nested structures that need custom handling.

Example

t.next_with(|c| {
    c.record(|rec| {
        rec.field("inner", "value")?;
        Ok(())
    })
})?;

pub fn position(&self) -> u8

Get the current position (number of elements written).

pub fn constructor(&mut self) -> &mut DocumentConstructor

Get a mutable reference to the underlying DocumentConstructor.

Useful for advanced use cases that need direct access.