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float.rs
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float.rs
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use crate::any::{Any, AnyArgumentBuffer, AnyTypeInfo, AnyTypeInfoKind, AnyValueKind, AnyValueRef};
use crate::database::{HasArguments, HasValueRef};
use crate::decode::Decode;
use crate::encode::{Encode, IsNull};
use crate::error::BoxDynError;
use crate::types::Type;
impl Type<Any> for f32 {
fn type_info() -> AnyTypeInfo {
AnyTypeInfo {
kind: AnyTypeInfoKind::Real,
}
}
}
impl<'q> Encode<'q, Any> for f32 {
fn encode_by_ref(&self, buf: &mut AnyArgumentBuffer<'q>) -> IsNull {
buf.0.push(AnyValueKind::Real(*self));
IsNull::No
}
}
impl<'r> Decode<'r, Any> for f32 {
fn decode(value: AnyValueRef<'r>) -> Result<Self, BoxDynError> {
match value.kind {
AnyValueKind::Real(r) => Ok(r),
other => other.unexpected(),
}
}
}
impl Type<Any> for f64 {
fn type_info() -> AnyTypeInfo {
AnyTypeInfo {
kind: AnyTypeInfoKind::Double,
}
}
}
impl<'q> Encode<'q, Any> for f64 {
fn encode_by_ref(&self, buf: &mut <Any as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
buf.0.push(AnyValueKind::Double(*self));
IsNull::No
}
}
impl<'r> Decode<'r, Any> for f64 {
fn decode(value: <Any as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
match value.kind {
// Widening is safe
AnyValueKind::Real(r) => Ok(r as f64),
AnyValueKind::Double(d) => Ok(d),
other => other.unexpected(),
}
}
}