Document that most enums representations require std or alloc features
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zeenix
changed the title
std or alloc featuresstd or alloc features
…tures
I was happily writing some code that needs to support no_std and no_alloc
only to find out that it's not possible through the compilation simply
failing:
```rust
error[E0433]: failed to resolve: could not find `ContentRefDeserializer` in `de`
--> zarlink/src/connection/mod.rs:136:36
|
136 | #[derive(Debug, Serialize, Deserialize)]
| ^^^^^^^^^^^ could not find `ContentRefDeserializer` in `de`
|
note: found an item that was configured out
--> /home/zeenix/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/serde-1.0.218/src/private/de.rs:14:35
|
14 | Content, ContentDeserializer, ContentRefDeserializer, EnumDeserializer,
| ^^^^^^^^^^^^^^^^^^^^^^
note: the item is gated here
--> /home/zeenix/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/serde-1.0.218/src/private/de.rs:12:1
|
12 | #[cfg(any(feature = "std", feature = "alloc"))]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0412]: cannot find type `Content` in module `_serde::__private::de`
--> zarlink/src/connection/mod.rs:136:36
|
136 | #[derive(Debug, Serialize, Deserialize)]
| ^^^^^^^^^^^ not found in `_serde::__private::de`
|
note: found an item that was configured out
--> /home/zeenix/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/serde-1.0.218/src/private/de.rs:14:5
|
14 | Content, ContentDeserializer, ContentRefDeserializer, EnumDeserializer,
| ^^^^^^^
note: the item is gated here
--> /home/zeenix/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/serde-1.0.218/src/private/de.rs:12:1
|
12 | #[cfg(any(feature = "std", feature = "alloc"))]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
```
Fixes serde-rs/serde#2668.
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I was happily writing some code that needs to support no_std and no_alloc only to find out that it's not possible through the compilation simply failing:
Fixes serde-rs/serde#2668.