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sqlx-postgres/src/types/float.rs
65 строк
2 KB
Max Bruckner
Make Encode return a result (#3126)
31 май 2024, 22:42
Не верифицирован
31 май 2024, 22:42
c57b46c
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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) -> Result<IsNull, BoxDynError> { buf.extend(&self.to_be_bytes()); Ok(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) -> Result<IsNull, BoxDynError> { buf.extend(&self.to_be_bytes()); Ok(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()?, }) } }