spg_sqlx/types/
float.rs

1//! v7.16.0 — `Type` / `Encode` / `Decode` for f64 / f32 / FLOAT.
2
3use sqlx_core::decode::Decode;
4use sqlx_core::encode::{Encode, IsNull};
5use sqlx_core::error::BoxDynError;
6use sqlx_core::types::Type;
7
8use spg_embedded::Value as EngineValue;
9
10use crate::arguments::SpgArgumentValue;
11use crate::database::Spg;
12use crate::type_info::{Kind, SpgTypeInfo};
13use crate::value::SpgValueRef;
14
15impl Type<Spg> for f64 {
16    fn type_info() -> SpgTypeInfo {
17        SpgTypeInfo::of(Kind::Float)
18    }
19    fn compatible(ty: &SpgTypeInfo) -> bool {
20        matches!(ty.kind(), Kind::Float)
21    }
22}
23
24impl<'q> Encode<'q, Spg> for f64 {
25    fn encode_by_ref(&self, buf: &mut Vec<SpgArgumentValue<'q>>) -> Result<IsNull, BoxDynError> {
26        buf.push(SpgArgumentValue {
27            value: EngineValue::Float(*self),
28            type_info: Some(<f64 as Type<Spg>>::type_info()),
29            _phantom: core::marker::PhantomData,
30        });
31        Ok(IsNull::No)
32    }
33}
34
35impl<'r> Decode<'r, Spg> for f64 {
36    fn decode(value: SpgValueRef<'r>) -> Result<Self, BoxDynError> {
37        match value.engine() {
38            EngineValue::Float(x) => Ok(*x),
39            other => Err(format!("cannot decode {other:?} as f64 / FLOAT").into()),
40        }
41    }
42}
43
44impl Type<Spg> for f32 {
45    fn type_info() -> SpgTypeInfo {
46        SpgTypeInfo::of(Kind::Float)
47    }
48    fn compatible(ty: &SpgTypeInfo) -> bool {
49        matches!(ty.kind(), Kind::Float)
50    }
51}
52
53impl<'q> Encode<'q, Spg> for f32 {
54    fn encode_by_ref(&self, buf: &mut Vec<SpgArgumentValue<'q>>) -> Result<IsNull, BoxDynError> {
55        buf.push(SpgArgumentValue {
56            value: EngineValue::Float(f64::from(*self)),
57            type_info: Some(<f32 as Type<Spg>>::type_info()),
58            _phantom: core::marker::PhantomData,
59        });
60        Ok(IsNull::No)
61    }
62}
63
64impl<'r> Decode<'r, Spg> for f32 {
65    fn decode(value: SpgValueRef<'r>) -> Result<Self, BoxDynError> {
66        match value.engine() {
67            #[allow(clippy::cast_possible_truncation)]
68            EngineValue::Float(x) => Ok(*x as f32),
69            other => Err(format!("cannot decode {other:?} as f32 / FLOAT").into()),
70        }
71    }
72}
spg_sqlx/types/float.rs

spg_sqlx/types/
float.rs
