Struct procspawn::serde::Json

pub struct Json<T>(pub T);

Utility wrapper to force values through JSON serialization.

By default procspawn will use bincode to serialize data across process boundaries. This has some limitations which can cause serialization or deserialization to fail for some types.

Since JSON is generally better supported in the serde ecosystem this lets you work around some known bugs.

• serde flatten not being supported: bincode#245
• vectors with unknown length not supported: bincode#167

Examples:

use procspawn::{spawn, serde::Json};
use serde::{Deserialize, Serialize};

#[derive(Serialize, Deserialize, Debug)]
struct InnerStruct {
    value: u64,
}

#[derive(Serialize, Deserialize, Debug)]
struct BadStruct {
    #[serde(flatten)]
    inner: InnerStruct,
}

let handle = spawn((), |()| {
    Json(BadStruct {
        inner: InnerStruct { value: 42 },
    })
});
let value = handle.join().unwrap().0;

This requires the json feature.

Tuple Fields

0: T

Trait Implementations

impl<T: Debug> Debug for Json<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de, T: DeserializeOwned> Deserialize<'de> for Json<T>

fn deserialize<D>(deserializer: D) -> Result<Json<T>, D::Error>where
    D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T: Ord> Ord for Json<T>

fn cmp(&self, other: &Json<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl<T: PartialEq> PartialEq<Json<T>> for Json<T>

fn eq(&self, other: &Json<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: PartialOrd> PartialOrd<Json<T>> for Json<T>

fn partial_cmp(&self, other: &Json<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: Serialize> Serialize for Json<T>

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>where
    S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: Eq> Eq for Json<T>

impl<T> StructuralEq for Json<T>

impl<T> StructuralPartialEq for Json<T>