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pub trait MythBased {
fn is_option(&self) -> bool;
fn ser_as_string(&self) -> Option<String>;
}
macro_rules! impl_myth_based {
($Self:ident) => {
impl MythBased for $Self {
fn is_option(&self) -> bool {
false
}
fn ser_as_string(&self) -> Option<String> {
Some(self.to_string())
}
}
impl MythBased for Option<$Self> {
fn is_option(&self) -> bool {
true
}
fn ser_as_string(&self) -> Option<String> {
self.map(|t| t.to_string())
}
}
};
}
impl_myth_based!(T128);
impl_myth_based!(T64);
impl_myth_based!(Myth64);
impl_myth_based!(Myth32);
impl_myth_based!(Myth16);
/// Serializes into a string like [`format!("{}")`](struct.T128.html).
/// ```json
/// "width": "10.0 +/-0.1"
/// ```
///
/// From [T128], [T64], [Myth64], [Myth32], [Myth16] or wraped in an `Option`.
///
#[inline]
pub fn into_string<S>(t: &dyn MythBased, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
if t.is_option() {
match t.ser_as_string() {
Some(ref value) => serializer.serialize_some(&value.to_string()),
None => serializer.serialize_none(),
}
} else {
serializer.serialize_some(&t.ser_as_string().unwrap())
}
}
macro_rules! impl_t_into_f64s {
($Self:ident, $fn_struct:expr, $fn_seq:expr) => {
impl $Self {
#[doc = concat!("Serializes a `", stringify!($Self), "` into a struct like the default serializer but with `f64` fields.")]
/// ```json
/// "width": {
/// "value": 10.0,
/// "plus": 0.1,
/// "minus": -0.1
/// }
/// ```
/// ### Example
/// ```rust
///# use serde::*;
///# use serde_json::to_string;
///# use tolerance::*;
///#
/// #[derive(Serialize)]
/// struct T2 {
#[doc = concat!(" #[serde(serialize_with = \"", stringify!($Self), "::into_float_struct\")]")]
#[doc = concat!(" width: ", stringify!($Self), ",")]
/// }
/// let t = T2 {
#[doc = concat!(" width: ", stringify!($Self), "::from(123455),")]
/// };
/// assert_eq!(
/// r#"{"width":{"value":12.3455,"plus":0.0,"minus":0.0}}"#,
/// serde_json::to_string(&t).unwrap()
/// );
/// ```
pub fn into_float_struct<S>(t: &$Self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
use serde::ser::SerializeStruct;
let mut state = serializer.serialize_struct(stringify!($Self), 3)?;
state.serialize_field("value", &t.value.as_f64())?;
state.serialize_field("plus", &t.plus.as_f64())?;
state.serialize_field("minus", &t.minus.as_f64())?;
state.end()
}
#[doc = concat!("Serializes an `Option<", stringify!($Self), ">` into a struct like the default serializer but with `f64` fields.")]
/// ### Example
/// ```rust
///# use serde::*;
///# use serde_json::to_string;
///# use tolerance::*;
///#
/// #[derive(Serialize)]
/// struct T2 {
#[doc = concat!(" #[serde(serialize_with = \"", stringify!($Self), "::option_into_float_struct\")]")]
#[doc = concat!(" width: Option<", stringify!($Self), ">,")]
/// }
/// let t = T2 {
#[doc = concat!(" width: Some(", stringify!($Self), "::from(123455)),")]
/// };
/// assert_eq!(
/// r#"{"width":{"value":12.3455,"plus":0.0,"minus":0.0}}"#,
/// serde_json::to_string(&t).unwrap()
/// );
/// let t = T2 { width: None };
/// assert_eq!(r#"{"width":null}"#, serde_json::to_string(&t).unwrap());
/// ```
pub fn option_into_float_struct<S>(
t: &Option<$Self>,
serializer: S,
) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
#[derive(serde::Serialize)]
#[serde(transparent)]
struct W<'a>(#[serde(serialize_with = $fn_struct)] &'a $Self);
match t {
Some(ref v) => serializer.serialize_some(&W(v)),
None => serializer.serialize_none(),
}
}
#[doc = concat!("Serializes a `", stringify!($Self), "` into an a array of 3 `f64` fields (value, plus, minus).")]
/// ```json
/// "width": [10.0, 0.1, -0.1]
/// ```
/// ### Example
/// ```rust
///# use serde::*;
///# use serde_json::to_string;
///# use tolerance::*;
///#
/// #[derive(Serialize)]
/// struct T2 {
#[doc = concat!(" #[serde(serialize_with = \"", stringify!($Self), "::into_float_seq\")]")]
#[doc = concat!(" width: ", stringify!($Self), ",")]
/// }
/// let t = T2 {
#[doc = concat!(" width: ", stringify!($Self), "::from(123455),")]
/// };
/// assert_eq!(
/// r#"{"width":[12.3455,0.0,0.0]}"#,
/// serde_json::to_string(&t).unwrap()
/// );
/// ```
pub fn into_float_seq<S>(t: &$Self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
use serde::ser::SerializeSeq;
let mut seq = serializer.serialize_seq(Some(3))?;
seq.serialize_element(&t.value.as_f64())?;
seq.serialize_element(&t.plus.as_f64())?;
seq.serialize_element(&t.minus.as_f64())?;
seq.end()
}
#[doc = concat!("Serializes an `Option<", stringify!($Self), ">` into an a array of 3 `f64` fields (value, plus, minus).")]
/// ### Example
/// ```rust
///# use serde::*;
///# use serde_json::to_string;
///# use tolerance::*;
///#
/// #[derive(Serialize)]
/// struct T2 {
#[doc = concat!(" #[serde(serialize_with = \"", stringify!($Self), "::option_into_float_seq\")]")]
#[doc = concat!(" width: Option<", stringify!($Self), ">,")]
/// }
/// let t = T2 {
#[doc = concat!(" width: Some(", stringify!($Self), "::from(123455)),")]
/// };
/// assert_eq!(
/// r#"{"width":[12.3455,0.0,0.0]}"#,
/// serde_json::to_string(&t).unwrap()
/// );
/// let t = T2 { width: None };
/// assert_eq!(r#"{"width":null}"#, serde_json::to_string(&t).unwrap());
/// ```
pub fn option_into_float_seq<S>(
t: &Option<$Self>,
serializer: S,
) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
#[derive(serde::Serialize)]
#[serde(transparent)]
struct W<'a>(#[serde(serialize_with = $fn_seq)] &'a $Self);
match t {
Some(ref v) => serializer.serialize_some(&W(v)),
None => serializer.serialize_none(),
}
}
}
};
}
impl_t_into_f64s!(T128, "T128::into_float_struct", "T128::into_float_seq");
impl_t_into_f64s!(T64, "T64::into_float_struct", "T64::into_float_seq");
macro_rules! empty_to_case {
($Self:ident) => {
impl $Self {
#[doc = concat!("Deserialzes the annoted `Option<", stringify!($Self), ">` from a string-value.")]
/// In the special-case of an empty string, it would return `Some(Self::ZERO)`.
///
/// ```rust
///# use tolerance::*;
///# use serde::{Deserialize, Serialize};
///#
/// #[derive(Serialize, Deserialize, PartialEq, Debug)]
/// struct T3 {
#[doc = concat!(" #[serde(deserialize_with = \"", stringify!($Self), "::empty_to_zero\")]")]
#[doc = concat!(" width: Option<", stringify!($Self), ">,")]
/// }
/// assert_eq!(
/// serde_json::from_str::<T3>(r#"{"width": ""}"#).unwrap(),
/// T3 {
#[doc = concat!(" width: Some(", stringify!($Self), "::ZERO)")]
/// }
///);
///```
pub fn empty_to_zero<'de, D>(deserializer: D) -> Result<Option<$Self>, D::Error>
where
D: serde::Deserializer<'de>,
{
struct MyVisitor;
impl<'de> serde::de::Visitor<'de> for MyVisitor {
type Value = Option<$Self>;
fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
formatter.write_str(concat!(
"a string parsable to ",
stringify!($Self),
" or empty!"
))
}
fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
where
E: serde::de::Error,
{
if v.trim().is_empty() {
return Ok(Some($Self::ZERO));
}
$Self::try_from(v).map(Some).map_err(|_| {
serde::de::Error::invalid_value(serde::de::Unexpected::Str(v), &"\"1.0\"")
})
}
fn visit_some<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
where
D: serde::de::Deserializer<'de>,
{
deserializer.deserialize_any(MyVisitor)
}
fn visit_none<E>(self) -> Result<Self::Value, E>
where
E: serde::de::Error,
{
Ok(None)
}
}
deserializer.deserialize_option(MyVisitor)
}
#[doc = concat!("Deserialzes the annoted `Option<", stringify!($Self), ">` from a string-value.")]
/// In the special-case of an empty string, it would return `None`.
///
/// ```rust
///# use tolerance::*;
///# use serde::{Deserialize, Serialize};
///#
/// #[derive(Serialize, Deserialize, PartialEq, Debug)]
/// struct T3 {
#[doc = concat!(" #[serde(deserialize_with = \"", stringify!($Self), "::empty_to_none\")]")]
#[doc = concat!(" width: Option<", stringify!($Self), ">,")]
/// }
/// assert_eq!(
/// serde_json::from_str::<T3>(r#"{"width": ""}"#).unwrap(),
/// T3 {
/// width: None
/// }
///);
///```
pub fn empty_to_none<'de, D>(deserializer: D) -> Result<Option<$Self>, D::Error>
where
D: serde::Deserializer<'de>,
{
struct MyVisitor;
impl<'de> serde::de::Visitor<'de> for MyVisitor {
type Value = Option<$Self>;
fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
formatter.write_str(concat!(
"a string parsable to ",
stringify!($Self),
" or empty!"
))
}
fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
where
E: serde::de::Error,
{
if v.trim().is_empty() {
return Ok(None);
}
$Self::try_from(v).map(Some).map_err(|_| {
serde::de::Error::invalid_value(serde::de::Unexpected::Str(v), &"\"1.0\"")
})
}
fn visit_some<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
where
D: serde::de::Deserializer<'de>,
{
deserializer.deserialize_any(MyVisitor)
}
fn visit_none<E>(self) -> Result<Self::Value, E>
where
E: serde::de::Error,
{
Ok(None)
}
}
deserializer.deserialize_option(MyVisitor)
}
}
};
}
empty_to_case!(Myth16);
empty_to_case!(Myth32);
empty_to_case!(Myth64);
empty_to_case!(T128);
empty_to_case!(T64);