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#![cfg(feature = "derive")]
// Pretend that this is somebody else's crate, not a module.
mod other_crate {
// Neither Schemars nor the other crate provides a JsonSchema impl
// for this struct.
pub struct Duration {
pub secs: i64,
pub nanos: i32,
}
}
////////////////////////////////////////////////////////////////////////////////
use other_crate::Duration;
use schemars::{schema_for, JsonSchema};
// This is just a copy of the remote data structure that Schemars can use to
// create a suitable JsonSchema impl.
#[derive(JsonSchema)]
#[serde(remote = "Duration")]
pub struct DurationDef {
pub secs: i64,
pub nanos: i32,
}
// Now the remote type can be used almost like it had its own JsonSchema impl
// all along. The `with` attribute gives the path to the definition for the
// remote type. Note that the real type of the field is the remote type, not
// the definition type.
#[derive(JsonSchema)]
pub struct Process {
pub command_line: String,
#[serde(with = "DurationDef")]
pub wall_time: Duration,
// Generic types must be explicitly specified with turbofix `::<>` syntax.
#[serde(with = "Vec::<DurationDef>")]
pub durations: Vec<Duration>,
}
fn main() {
let schema = schema_for!(Process);
println!("{}", serde_json::to_string_pretty(&schema).unwrap());
}
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