casper_event_standard/
schema.rs

1use alloc::{collections::BTreeMap, string::String, vec::Vec};
2use casper_types::{
3    bytesrepr::{self, FromBytes, ToBytes},
4    CLType, CLTyped,
5};
6
7#[cfg(feature = "serde")]
8use serde::{Deserialize, Serialize};
9
10use crate::{cl_type2::CLType2, EventInstance};
11
12/// The information about a single event.
13#[derive(Default, Debug, PartialEq, Clone)]
14#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
15pub struct Schema(Vec<(String, CLType2)>);
16
17impl Schema {
18    /// Creates an empty object.
19    pub fn new() -> Self {
20        Self::default()
21    }
22
23    /// Adds new named element.
24    pub fn with_elem(&mut self, name: &str, ty: CLType) {
25        self.0.push((String::from(name), CLType2(ty)));
26    }
27
28    /// Convert to underlying vector.
29    pub fn to_vec(self) -> Vec<(String, CLType2)> {
30        self.0
31    }
32}
33
34impl CLTyped for Schema {
35    fn cl_type() -> CLType {
36        Vec::<(String, CLType2)>::cl_type()
37    }
38}
39
40impl ToBytes for Schema {
41    fn to_bytes(&self) -> Result<Vec<u8>, bytesrepr::Error> {
42        self.0.to_bytes()
43    }
44
45    fn serialized_length(&self) -> usize {
46        self.0.serialized_length()
47    }
48}
49
50impl FromBytes for Schema {
51    fn from_bytes(bytes: &[u8]) -> Result<(Self, &[u8]), bytesrepr::Error> {
52        Vec::<(String, CLType2)>::from_bytes(bytes).map(|(map, bytes)| (Schema(map), bytes))
53    }
54}
55
56/// The information about multiple events.
57#[derive(Default, Debug, PartialEq, Clone)]
58#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
59pub struct Schemas(pub BTreeMap<String, Schema>);
60
61impl Schemas {
62    /// Creates an empty object.
63    pub fn new() -> Self {
64        Self::default()
65    }
66
67    /// Adds new [`Schema`] based on the event's type.
68    pub fn add<T: EventInstance>(&mut self) {
69        self.0.insert(T::name(), T::schema());
70    }
71
72    /// Adds new [`Schema`] based on the event's type.
73    ///
74    /// Same as [`add`], but returns Self.
75    ///
76    /// [`add`]: #method.add
77    pub fn with<T: EventInstance>(mut self) -> Self {
78        self.add::<T>();
79        self
80    }
81}
82
83impl CLTyped for Schemas {
84    fn cl_type() -> CLType {
85        BTreeMap::<String, Schema>::cl_type()
86    }
87}
88
89impl ToBytes for Schemas {
90    fn to_bytes(&self) -> Result<Vec<u8>, bytesrepr::Error> {
91        self.0.to_bytes()
92    }
93
94    fn serialized_length(&self) -> usize {
95        self.0.serialized_length()
96    }
97}
98
99impl FromBytes for Schemas {
100    fn from_bytes(bytes: &[u8]) -> Result<(Self, &[u8]), bytesrepr::Error> {
101        BTreeMap::<String, Schema>::from_bytes(bytes).map(|(map, bytes)| (Schemas(map), bytes))
102    }
103}
casper_event_standard/schema.rs

casper_event_standard/
schema.rs
