Docs say that deserialization without alloc is supported

[leighmcculloch]

The docs appear to say:

serde-json-wasm/src/lib.rs

Line 11 in 2ab22a6

//! - (De)serialization doesn't require memory allocations

serde-json-wasm/src/lib.rs

Lines 15 to 18 in 2ab22a6

	//! - Supports deserialization of:
	//! - `bool`
	//! - Integers
	//! - `str` (This is a zero copy operation.) (\*)

However, looking at the API, DeserializedOwned is required:

serde-json-wasm/src/de/mod.rs

Lines 654 to 656 in 2ab22a6

	pub fn from_slice<T>(v: &[u8]) -> Result<T>
	where
	T: de::DeserializeOwned,

What's the right way to use the lib to do deserialisation with &str fields being a zero copy?

Thanks!

[webmaster128]

The docs are outdated, thank you for pointing this out. They are from the original serde-json-core.

For JSON neither serialization nor deseralization can be done zero-copy without heavily restricting the supported contents because of escaping. E.g.

• Serialize string \ (1 byte) gives you "\\" (2 bytes)
• Deserialize JSON string "23\u00B0C" (9 bytes) returns 23°C (4 bytes)