ssi_dids_core/document/
resource.rs

1use serde::Serialize;
2
3use crate::{Document, DID, DIDURL};
4
5use super::DIDVerificationMethod;
6
7/// Reference to an arbitrary resource in a DID document.
8#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
9#[serde(untagged)]
10pub enum Resource {
11    /// DID document.
12    Document(Document),
13
14    /// Verification method.
15    VerificationMethod(DIDVerificationMethod),
16}
17
18impl Resource {
19    pub fn as_verification_method(&self) -> Option<&DIDVerificationMethod> {
20        match self {
21            Self::VerificationMethod(m) => Some(m),
22            _ => None,
23        }
24    }
25
26    pub fn into_verification_method(self) -> Result<DIDVerificationMethod, Self> {
27        match self {
28            Self::VerificationMethod(m) => Ok(m),
29            other => Err(other),
30        }
31    }
32}
33
34/// Reference to an arbitrary resource in a DID document.
35#[derive(Debug, Clone, Copy, PartialEq, Eq)]
36pub enum ResourceRef<'a> {
37    /// DID document.
38    Document(&'a Document),
39
40    /// Verification method.
41    VerificationMethod(&'a DIDVerificationMethod),
42}
43
44pub trait UsesResource {
45    fn uses_resource(&self, base_id: &DID, id: &DIDURL) -> bool;
46}
47
48impl<T: UsesResource> UsesResource for Option<T> {
49    fn uses_resource(&self, base_did: &DID, id: &DIDURL) -> bool {
50        self.as_ref().is_some_and(|t| t.uses_resource(base_did, id))
51    }
52}
53
54impl<T: UsesResource> UsesResource for Vec<T> {
55    fn uses_resource(&self, base_did: &DID, id: &DIDURL) -> bool {
56        self.iter().any(|t| t.uses_resource(base_did, id))
57    }
58}
59
60/// Find a resource definition.
61pub trait FindResource {
62    fn find_resource(&self, base_did: &DID, id: &DIDURL) -> Option<ResourceRef>;
63}
64
65impl<T: FindResource> FindResource for Option<T> {
66    fn find_resource(&self, base_did: &DID, id: &DIDURL) -> Option<ResourceRef> {
67        self.as_ref().and_then(|t| t.find_resource(base_did, id))
68    }
69}
70
71impl<T: FindResource> FindResource for Vec<T> {
72    fn find_resource(&self, base_did: &DID, id: &DIDURL) -> Option<ResourceRef> {
73        self.iter().find_map(|t| t.find_resource(base_did, id))
74    }
75}
76
77pub trait ExtractResource {
78    fn extract_resource(self, base_did: &DID, id: &DIDURL) -> Option<Resource>;
79}
80
81impl<T: ExtractResource> ExtractResource for Option<T> {
82    fn extract_resource(self, base_did: &DID, id: &DIDURL) -> Option<Resource> {
83        self.and_then(|t| t.extract_resource(base_did, id))
84    }
85}
86
87impl<T: ExtractResource> ExtractResource for Vec<T> {
88    fn extract_resource(self, base_did: &DID, id: &DIDURL) -> Option<Resource> {
89        self.into_iter()
90            .find_map(|t| t.extract_resource(base_did, id))
91    }
92}
ssi_dids_core/document/resource.rs

ssi_dids_core/document/
resource.rs
