Struct Policy 

pub struct Policy {
    pub invalid: Action,
    pub vocab: Action,
    pub allow_undefined: bool,
}

Key expansion policy.

The default behavior of the expansion algorithm is to drop keys that are not defined in the context unless:

• there is a vocabulary mapping (@vocab) defined in the context; or
• the term contains a : character.

In other words, a key that cannot be expanded into an IRI or a blank node identifier is dropped unless it contains a : character.

Sometimes, it is preferable to keep undefined keys in the expanded document, or to forbid them completely by raising an error. You can define your preferred policy using one of this type variant with the Options::policy field.

Fields

invalid: Action

How to expand invalid terms.

vocab: Action

How to expand valid terms that need a vocabulary mapping (@vocab keyword).

allow_undefined: bool

How to expand valid terms when there is no vocabulary mapping.

Trait Implementations

impl Clone for Policy

fn clone(&self) -> Policy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Policy

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

Formats the value using the given formatter.

impl Default for Policy

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Policy

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Policy

impl Eq for Policy

impl StructuralPartialEq for Policy