Struct FieldRef 

pub struct FieldRef {
    pub name: String,
    pub index: Option<u32>,
}

A field, named the way a script would name it.

Carries the identity a script needs to talk about the field, not a reference to it: nothing here can be used to reach back into the session.

Fields

name: String

The field’s fully qualified name.

index: Option<u32>

Its position in the document’s terminal-field list — the flat /AcroForm /Fields walk.

Document-wide, and Option because not every field is in that list

This is the space /AcroForm /CO indexes, the space Doc.numFields counts and the space Doc.getNthFieldName(n) reads — every way a script has of naming a field by number. It is not the page-local FieldId a session stores interaction state under; those coincide only for a single-page form whose widgets appear in /Fields order, and a calculation that confused them would write the wrong field on any other file.

None for a widget the form’s field list does not reach — an unnamed one, most often. Such a field is real for interaction and invisible to a script, which is the oracle’s answer too: GetFieldByDict returns null for it and CountFields never counted it.

Trait Implementations

impl Clone for FieldRef

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldRef

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

Formats the value using the given formatter.

impl Eq for FieldRef

impl PartialEq for FieldRef

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FieldRef