[−][src]Function abi_stable::std_types::cow::deserialize_borrowed_str
pub fn deserialize_borrowed_str<'de, 'a, D>(
deserializer: D
) -> Result<RCow<'a, str>, D::Error> where
D: Deserializer<'de>,
'de: 'a,
Deserializes an RCow<'a,str>
that borrows the string from the deserializer
whenever possible.
Example
Defining a type containing an RCow<'a,str>
which borrows from the deserializer.
use abi_stable::std_types::cow::{ deserialize_borrowed_str, RCow, }; use serde::{Deserialize,Serialize}; #[derive(Debug,Deserialize,Serialize,PartialEq)] pub struct TheSlice<'a>{ #[serde(borrow,deserialize_with="deserialize_borrowed_str")] slice:RCow<'a,str>, } let the_slice=TheSlice{ slice:RCow::from("That's a lot of fish.") }; let string=serde_json::to_string(&the_slice).unwrap(); let deserialized_slice=serde_json::from_str::<TheSlice<'_>>(&string).unwrap(); assert_eq!(the_slice,deserialized_slice); assert!( deserialized_slice.slice.is_borrowed() );