openrtb2 0.2.0

An implementation of OpenRTB 2.5 FINAL.
Documentation 
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

use serde::{Deserialize, Deserializer, Serializer};

macro_rules! serialize_i32 {
    ($serializer:ident, $value:ident) => {
        $serializer.serialize_i32(if *$value { 1 } else { 0 })
    };
}

macro_rules! i32_to_bool {
    ($value:expr) => {
        match $value {
            0 => Ok(false),
            1 => Ok(true),
            v => {
                let s = format!("invalid value: {}, expected 0 or 1", v);
                Err(serde::de::Error::custom(s))
            }
        }
    };
}

pub mod i32_as_bool {
    use super::*;

    pub fn serialize<S>(v: &bool, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        serialize_i32!(serializer, v)
    }

    pub fn deserialize<'de, D>(deserializer: D) -> Result<bool, D::Error>
    where
        D: Deserializer<'de>,
    {
        i32_to_bool!(i32::deserialize(deserializer)?)
    }
}

pub mod i32_as_opt_bool {
    use super::*;

    pub fn serialize<S>(opt: &Option<bool>, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        match opt {
            Some(v) => serialize_i32!(serializer, v),
            None => serializer.serialize_none(),
        }
    }

    pub fn deserialize<'de, D>(deserializer: D) -> Result<Option<bool>, D::Error>
    where
        D: Deserializer<'de>,
    {
        match Option::<i32>::deserialize(deserializer)? {
            Some(v) => i32_to_bool!(v).map(Some),
            None => Ok(None),
        }
    }
}

#[cfg(test)]
mod test {
    #[test]
    fn i32_as_bool() -> serde_json::Result<()> {
        #[derive(serde::Serialize, serde::Deserialize, Debug, PartialEq)]
        struct O {
            #[serde(with = "crate::serde::i32_as_bool")]
            flag: bool,
        }

        assert!(serde_json::from_str::<O>(r#"{}"#).is_err());
        assert!(serde_json::from_str::<O>(r#"{"flag":-1}"#).is_err());
        assert!(serde_json::from_str::<O>(r#"{"flag":2}"#).is_err());

        let j1 = r#"{"flag":1}"#;
        let o1 = serde_json::from_str::<O>(j1)?;
        assert_eq!(o1, O { flag: true });
        assert_eq!(serde_json::to_string(&o1)?, j1);

        let j2 = r#"{"flag":0}"#;
        let o2 = serde_json::from_str::<O>(j2)?;
        assert_eq!(o2, O { flag: false });
        assert_eq!(serde_json::to_string(&o2)?, j2);

        Ok(())
    }

    #[test]
    fn i32_as_opt_bool() -> serde_json::Result<()> {
        #[derive(serde::Serialize, serde::Deserialize, Debug, PartialEq)]
        struct O {
            #[serde(with = "crate::serde::i32_as_opt_bool")]
            flag: Option<bool>,
        }

        assert!(serde_json::from_str::<O>(r#"{}"#).is_err());
        assert!(serde_json::from_str::<O>(r#"{"flag":-1}"#).is_err());
        assert!(serde_json::from_str::<O>(r#"{"flag":2}"#).is_err());
        assert!(serde_json::from_str::<O>(r#"{"flag":null}"#).is_ok());

        let j1 = r#"{"flag":1}"#;
        let o1 = serde_json::from_str::<O>(j1)?;
        assert_eq!(o1, O { flag: Some(true) });
        assert_eq!(serde_json::to_string(&o1)?, j1);

        let j2 = r#"{"flag":0}"#;
        let o2 = serde_json::from_str::<O>(j2)?;
        assert_eq!(o2, O { flag: Some(false) });
        assert_eq!(serde_json::to_string(&o2)?, j2);

        Ok(())
    }
}