jimtcl 0.3.0

Embed Jim Tcl in Rust.
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
117
118
119
120
121
122
123

//! Deserialize Tcl from Serde

use serde::de::{self, DeserializeSeed, Error, Visitor};

use crate::{Interp, JimObject, object::IntoJimObj};

struct TclVisitor<'jim> {
    interp: &'jim Interp,
}

impl<'jim, 'de> DeserializeSeed<'de> for &'jim Interp {
    type Value = JimObject<'jim>;

    fn deserialize<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
    where
        D: serde::Deserializer<'de>,
    {
        let visitor = TclVisitor { interp: self };
        deserializer.deserialize_any(visitor)
    }
}

impl<'jim, 'de> Visitor<'de> for TclVisitor<'jim> {
    type Value = JimObject<'jim>;

    fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
        formatter.write_str("a Tcl-compatible string")
    }

    fn visit_bool<E>(self, v: bool) -> Result<Self::Value, E>
    where
        E: de::Error,
    {
        Ok(v.to_jim(self.interp))
    }

    fn visit_i64<E>(self, v: i64) -> Result<Self::Value, E>
    where
        E: de::Error,
    {
        Ok(v.to_jim(self.interp))
    }

    fn visit_u64<E>(self, v: u64) -> Result<Self::Value, E>
    where
        E: de::Error,
    {
        Ok(v.to_jim(self.interp))
    }

    fn visit_f64<E>(self, v: f64) -> Result<Self::Value, E>
    where
        E: de::Error,
    {
        Ok(v.to_jim(self.interp))
    }

    fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
    where
        E: de::Error,
    {
        Ok(v.to_jim(self.interp))
    }

    fn visit_string<E>(self, v: String) -> Result<Self::Value, E>
    where
        E: de::Error,
    {
        self.visit_str(&v)
    }

    fn visit_none<E>(self) -> Result<Self::Value, E>
    where
        E: de::Error,
    {
        Ok(JimObject::empty(self.interp))
    }

    fn visit_some<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
    where
        D: serde::Deserializer<'de>,
    {
        deserializer.deserialize_any(self)
    }

    fn visit_unit<E>(self) -> Result<Self::Value, E>
    where
        E: de::Error,
    {
        Ok(JimObject::empty(self.interp))
    }

    fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error>
    where
        A: de::SeqAccess<'de>,
    {
        let obj = JimObject::empty(self.interp);
        while let Some(elt) = seq.next_element_seed(self.interp)? {
            obj.list_append_obj(elt);
        }
        Ok(obj)
    }

    fn visit_map<A>(self, mut map: A) -> Result<Self::Value, A::Error>
    where
        A: de::MapAccess<'de>,
    {
        let obj = JimObject::empty(self.interp);
        while let Some((k, v)) = map.next_entry_seed(self.interp, self.interp)? {
            obj.dict_set_obj(k, v)
                .map_err(|e| Error::custom(format!("Jim error: {}", e)))?;
        }
        Ok(obj)
    }

    fn visit_enum<A>(self, data: A) -> Result<Self::Value, A::Error>
    where
        A: de::EnumAccess<'de>,
    {
        let _ = data;
        Err(de::Error::invalid_type(de::Unexpected::Enum, &self))
    }
}