json_model/attribute/
pointer_path.rs

1use super::{AllowedType, Attribute};
2use crate::definition::Type;
3use crate::error::{Error, ValidationError};
4use crate::validator::{Context, DocumentPath, State};
5
6use std::collections::HashSet;
7
8#[derive(Debug)]
9pub struct PointerPath {
10    name: String,
11    ptr: String,
12}
13
14impl PointerPath {
15    pub fn new(state: &mut State, mut path: DocumentPath, ctx: &Context) -> Result<Self, Error> {
16        let obj = ctx.raw_definition();
17
18        match Type::new(obj, path.clone())? {
19            Type::Pointer => (),
20            typ => return Err(Error::ForbiddenType { path, typ }),
21        };
22
23        let ptr = match obj.get(ctx.name().as_str()) {
24            Some(ptr_path) => match ptr_path.as_str() {
25                Some(path) => path,
26                None => {
27                    path.add(ctx.name().as_str());
28                    return Err(Error::InvalidValue {
29                        path,
30                        value: ptr_path.clone(),
31                    });
32                }
33            },
34            None => {
35                return Err(Error::MissingAttribute {
36                    path,
37                    attr: ctx.name(),
38                })
39            }
40        };
41
42        state.add_unresolved_pointer(ptr.to_string(), ctx.ptr());
43
44        Ok(PointerPath {
45            name: ctx.name(),
46            ptr: ptr.to_string(),
47        })
48    }
49
50    pub fn allowed_types() -> HashSet<AllowedType> {
51        let mut set = HashSet::<AllowedType>::new();
52        set.insert(AllowedType::new(Type::Pointer, true));
53        set
54    }
55
56    pub fn build(
57        state: &mut State,
58        path: DocumentPath,
59        ctx: &Context,
60    ) -> Result<Box<Attribute>, Error> {
61        Ok(Box::new(PointerPath::new(state, path, ctx)?))
62    }
63}
64
65impl Attribute for PointerPath {
66    fn validate(
67        &self,
68        state: &State,
69        path: Vec<String>,
70        input: &serde_json::Value,
71    ) -> Result<(), ValidationError> {
72        let def = match state.get_definition(self.ptr.as_str()) {
73            Some(def) => def,
74            None => return Err(ValidationError::UndefinedDefinition),
75        };
76
77        def.validate(state, input, path)?;
78
79        Ok(())
80    }
81}