Struct LinksMetadata 

pub struct LinksMetadata { /* private fields */ }

Metadata about all the applications of @link in a schema.

Implementations

impl LinksMetadata

pub fn from_schema( schema: &Schema, ) -> Result<Option<LinksMetadata>, FederationError>

Create @link metadata from a schema. Specifically it:

1. Finds the bootstrapping @link directive and definition (and ensures there’s only one).
2. Runs link spec validations against @link applications.
3. Checks if imports are for known elements for @link applications with known specs.
4. Collects metadata about @link applications.

It does not:

1. Expand definitions for any linked specs (including the link spec itself).
2. Require definitions to be expanded, other than for the bootstrapping @link directive.
3. Run non-link spec validations against @link applications with known specs.
4. Run validations to ensure no used shadowing imports (this must be done separately, after definitions have been expanded and referencers collected).

pub fn all_links(&self) -> impl ExactSizeIterator<Item = &Arc<Link>>

pub fn for_identity(&self, identity: &Identity) -> Option<Arc<Link>>

pub fn source_link_of_type(&self, type_name: &Name) -> Option<LinkedElement>

pub fn source_link_of_directive( &self, directive_name: &Name, ) -> Option<LinkedElement>

Trait Implementations

impl Clone for LinksMetadata

fn clone(&self) -> LinksMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LinksMetadata

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

Formats the value using the given formatter.