Trait Navigate 

pub trait Navigate: Sized {
    // Required methods
    fn child(&self, key: &str) -> Option<&Self>;
    fn items(&self) -> Option<&[Self]>;
    fn text(&self) -> Option<&str>;
}

A metadata tree a FieldPath can be walked over. Both value trees prov reads — its own Value and fig’s — are one.

Required Methods

fn child(&self, key: &str) -> Option<&Self>

The value under key, if this is a mapping holding it.

fn items(&self) -> Option<&[Self]>

The items, if this is a list.

fn text(&self) -> Option<&str>

The text, if this is a string.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Navigate for Value

fn child(&self, key: &str) -> Option<&Self>

fn items(&self) -> Option<&[Self]>

fn text(&self) -> Option<&str>

Implementors

impl Navigate for prov_graph::meta::Value