Struct StructView 

pub struct StructView<'a>(/* private fields */);

A struct value’s name and fields.

Implementations

impl<'a> StructView<'a>

pub fn type_name(self) -> &'a str

The qualified name of the declared type, such as rules.policy.PullRequest — the name Value::structure takes.

pub fn field(self, name: &str) -> Option<&'a Value>

The field name, or None when the struct declares no such field.

pub fn fields(self) -> impl Iterator<Item = (&'a str, &'a Value)>

The fields, in declaration order.

pub fn len(self) -> usize

How many fields the struct declares.

pub fn is_empty(self) -> bool

Whether the struct declares no fields at all.

pub fn is_opaque(self) -> bool

Whether the declaration said export opaque struct (ADR 0014), which governs how the value renders and nothing else.

The fields are readable here whatever this answers, for the reason Value::fields gives: a host holding the value has already been handed it.

Trait Implementations

impl<'a> Clone for StructView<'a>

fn clone(&self) -> StructView<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for StructView<'a>

impl<'a> Debug for StructView<'a>

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

Formats the value using the given formatter.