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
use byteorder::{BigEndian, ByteOrder};

use crate::decode::Decode;
use crate::encode::{Encode, IsNull};
use crate::error::BoxDynError;
use crate::types::Type;
use crate::{PgArgumentBuffer, PgHasArrayType, PgTypeInfo, PgValueFormat, PgValueRef, Postgres};

impl Type<Postgres> for f32 {
    fn type_info() -> PgTypeInfo {
        PgTypeInfo::FLOAT4
    }
}

impl PgHasArrayType for f32 {
    fn array_type_info() -> PgTypeInfo {
        PgTypeInfo::FLOAT4_ARRAY
    }
}

impl Encode<'_, Postgres> for f32 {
    fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull {
        buf.extend(&self.to_be_bytes());

        IsNull::No
    }
}

impl Decode<'_, Postgres> for f32 {
    fn decode(value: PgValueRef<'_>) -> Result<Self, BoxDynError> {
        Ok(match value.format() {
            PgValueFormat::Binary => BigEndian::read_f32(value.as_bytes()?),
            PgValueFormat::Text => value.as_str()?.parse()?,
        })
    }
}

impl Type<Postgres> for f64 {
    fn type_info() -> PgTypeInfo {
        PgTypeInfo::FLOAT8
    }
}

impl PgHasArrayType for f64 {
    fn array_type_info() -> PgTypeInfo {
        PgTypeInfo::FLOAT8_ARRAY
    }
}

impl Encode<'_, Postgres> for f64 {
    fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull {
        buf.extend(&self.to_be_bytes());

        IsNull::No
    }
}

impl Decode<'_, Postgres> for f64 {
    fn decode(value: PgValueRef<'_>) -> Result<Self, BoxDynError> {
        Ok(match value.format() {
            PgValueFormat::Binary => BigEndian::read_f64(value.as_bytes()?),
            PgValueFormat::Text => value.as_str()?.parse()?,
        })
    }
}