1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
pub mod value;
pub mod node;
use std::collections::HashSet;
use std::hash::Hash;
use std::fmt;
use iref::{Iri, IriBuf};
use json::JsonValue;
use crate::{
Id,
Lenient,
Reference,
Indexed,
syntax::Keyword,
util::AsJson
};
pub use value::{
Literal,
Value
};
pub use node::Node;
#[derive(PartialEq, Eq, Hash)]
pub enum Object<T: Id = IriBuf> {
Value(Value<T>),
Node(Node<T>),
List(Vec<Indexed<Object<T>>>),
}
impl<T: Id> Object<T> {
pub fn id(&self) -> Option<&Lenient<Reference<T>>> {
match self {
Object::Node(n) => n.id.as_ref(),
_ => None
}
}
pub fn is_value(&self) -> bool {
match self {
Object::Value(_) => true,
_ => false
}
}
pub fn is_node(&self) -> bool {
match self {
Object::Node(_) => true,
_ => false
}
}
pub fn is_graph(&self) -> bool {
match self {
Object::Node(n) => n.is_graph(),
_ => false
}
}
pub fn is_list(&self) -> bool {
match self {
Object::List(_) => true,
_ => false
}
}
pub fn as_str(&self) -> Option<&str> {
match self {
Object::Value(value) => value.as_str(),
Object::Node(node) => node.as_str(),
_ => None
}
}
pub fn as_iri(&self) -> Option<Iri> {
match self {
Object::Node(node) => node.as_iri(),
_ => None
}
}
pub fn into_unnamed_graph(self: Indexed<Self>) -> Result<HashSet<Indexed<Object<T>>>, Indexed<Self>> {
let (obj, index) = self.into_parts();
match obj {
Object::Node(n) => {
match n.into_unnamed_graph() {
Ok(g) => Ok(g),
Err(n) => Err(Indexed::new(Object::Node(n), index))
}
},
obj => Err(Indexed::new(obj, index))
}
}
}
impl<T: Id> fmt::Debug for Object<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", self.as_json().pretty(2))
}
}
impl<T: Id> From<Value<T>> for Object<T> {
fn from(value: Value<T>) -> Object<T> {
Object::Value(value)
}
}
impl<T: Id> From<Node<T>> for Object<T> {
fn from(node: Node<T>) -> Object<T> {
Object::Node(node)
}
}
impl<T: Id> AsJson for Object<T> {
fn as_json(&self) -> JsonValue {
match self {
Object::Value(v) => v.as_json(),
Object::Node(n) => n.as_json(),
Object::List(items) => {
let mut obj = json::object::Object::new();
obj.insert(Keyword::List.into(), items.as_json());
JsonValue::Object(obj)
}
}
}
}