26 lines
1 KiB
Markdown
26 lines
1 KiB
Markdown
---
|
|
layout: default
|
|
title: Feature Flags
|
|
nav_order: 5
|
|
permalink: /features/
|
|
---
|
|
|
|
# Feature Flags and Optional Dependencies
|
|
|
|
Some functionality can be selectively enabled/disabled via [Cargo features](https://doc.rust-lang.org/cargo/reference/manifest.html#the-features-section). These can be enabled when you add Schemars to your crate's cargo.toml, e.g.
|
|
```toml
|
|
[dependencies]
|
|
schemars = { version = "0.6", features = ["chrono"] }
|
|
```
|
|
|
|
## Feature Flags
|
|
- `impl_json_schema` - implements `JsonSchema` for Schemars types themselves
|
|
|
|
## Optional Dependencies
|
|
Schemars can implement `JsonSchema` on types from several popular crates, enabled via optional dependencies (dependency versions are shown in brackets):
|
|
- [`chrono`](https://crates.io/crates/chrono) (^0.4)
|
|
- [`indexmap`](https://crates.io/crates/indexmap) (^1.2)
|
|
- [`either`](https://crates.io/crates/either) (^1.3)
|
|
- [`uuid`](https://crates.io/crates/uuid) (^0.8)
|
|
- [`smallvec`](https://crates.io/crates/uuid) (^1.0)
|
|
- [`arrayvec`](https://crates.io/crates/arrayvec) (^0.5)
|