grib 0.17.0

GRIB format parser & writer for 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
124
125
126
127
128
129
130

use std::iter::{Once, once};

use super::{
    GpvEncoder, WriteGrib2GridDef, WriteGrib2Ident, WriteGrib2LocalUse, WriteGrib2Message,
    WriteGrib2MessageIterL1, WriteGrib2MessageIterL2, WriteGrib2ProductDef,
};

/// A writer for GRIB2 messages that contain only one submessage.
pub struct SingleGrib2Message<'d, I, L, G, P> {
    pub(crate) discipline: u8,
    pub(crate) ident: I,
    pub(crate) local_use: Option<L>,
    pub(crate) grid: G,
    pub(crate) product: P,
    pub(crate) values: GpvEncoder<'d>,
}

impl<'d, I, L, G, P> SingleGrib2Message<'d, I, L, G, P> {
    pub fn new(
        discipline: u8,
        ident: I,
        local_use: Option<L>,
        grid: G,
        product: P,
        values: GpvEncoder<'d>,
    ) -> Self {
        Self {
            discipline,
            ident,
            local_use,
            grid,
            product,
            values,
        }
    }
}

impl<'d, I, L, G, P> WriteGrib2Message for SingleGrib2Message<'d, I, L, G, P>
where
    I: WriteGrib2Ident,
    L: WriteGrib2LocalUse,
    G: WriteGrib2GridDef,
    P: WriteGrib2ProductDef,
{
    type S1<'a>
        = I
    where
        Self: 'a;

    type Item<'a>
        = (&'a Option<L>, &'a G, &'a P, &'a GpvEncoder<'d>)
    where
        Self: 'a;

    type Iter<'a>
        = Once<(&'a Option<L>, &'a G, &'a P, &'a GpvEncoder<'d>)>
    where
        Self: 'a;

    fn discipline(&self) -> u8 {
        self.discipline
    }

    fn section1(&self) -> &Self::S1<'_> {
        &self.ident
    }

    fn iter(&self) -> Self::Iter<'_> {
        once((&self.local_use, &self.grid, &self.product, &self.values))
    }
}

impl<'a, 'd, L, G, P> WriteGrib2MessageIterL1 for (&'a Option<L>, &'a G, &'a P, &'a GpvEncoder<'d>)
where
    L: WriteGrib2LocalUse,
    G: WriteGrib2GridDef,
    P: WriteGrib2ProductDef,
{
    type S2<'s>
        = L
    where
        Self: 's;

    type Item<'s>
        = (&'a G, &'a P, &'a GpvEncoder<'d>)
    where
        Self: 's;

    type Iter<'s>
        = Once<(&'a G, &'a P, &'a GpvEncoder<'d>)>
    where
        Self: 's;

    fn section2(&self) -> Option<&Self::S2<'_>> {
        self.0.as_ref()
    }

    fn iter(&self) -> Self::Iter<'_> {
        once((self.1, self.2, self.3))
    }
}

impl<'a, 'd, G, P> WriteGrib2MessageIterL2 for (&'a G, &'a P, &'a GpvEncoder<'d>)
where
    G: WriteGrib2GridDef,
    P: WriteGrib2ProductDef,
{
    type S3<'s>
        = G
    where
        Self: 's;

    type Item<'s>
        = (&'a P, &'a GpvEncoder<'d>)
    where
        Self: 's;

    type Iter<'s>
        = Once<(&'a P, &'a GpvEncoder<'d>)>
    where
        Self: 's;

    fn section3(&self) -> &Self::S3<'_> {
        self.0
    }

    fn iter(&self) -> Self::Iter<'_> {
        once((self.1, self.2))
    }
}