rust/src/test/rustdoc-json/fns/generics.rs

// @has generics.json "$.index[*][?(@.name=='one_generic_param_fn')].inner.generics.params[0].kind.type.synthetic" false
pub fn one_generic_param_fn<T>(_: T) {}

// @has - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.generics.params[0].kind.type.synthetic" true
pub fn one_synthetic_generic_param_fn(_: impl Clone) {}
rustdoc-json: Include GenericParamDefKind::Type::synthetic in JSON The rustdoc JSON for ``` pub fn f(_: impl Clone) {} ``` will effectively be ``` pub fn f<impl Clone: Clone>(_: impl Clone) ``` where a synthetic generic parameter called `impl Clone` with generic trait bound `Clone` is added to the function declaration. The generated HTML filters out these generic parameters by doing `self.params.iter().filter(\|p\| !p.is_synthetic_type_param())`, because the synthetic generic parameter is not of interest to regular users. For the same reason, we should expose whether or not a generic parameter is synthetic or not also in the rustdoc JSON, so that rustdoc JSON clients can also have the option to hide synthetic generic parameters. 2022-02-19 09:50:35 +01:00			`// @has generics.json "$.index[*][?(@.name=='one_generic_param_fn')].inner.generics.params[0].kind.type.synthetic" false`
			`pub fn one_generic_param_fn<T>(_: T) {}`

			`// @has - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.generics.params[0].kind.type.synthetic" true`
			`pub fn one_synthetic_generic_param_fn(_: impl Clone) {}`