feat(doc): handle function params and type params (#4672)

1 files changed, 12 insertions, 6 deletions

diff --git a/cli/doc/type_alias.rs b/cli/doc/type_alias.rs
index ad9933978..b26395c3f 100644
--- a/cli/doc/type_alias.rs
+++ b/cli/doc/type_alias.rs
@@ -1,15 +1,16 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
-use crate::swc_ecma_ast;
-use serde::Serialize;
-
 use super::parser::DocParser;
 use super::ts_type::TsTypeDef;
+use super::ts_type_param::maybe_type_param_decl_to_type_param_defs;
+use super::ts_type_param::TsTypeParamDef;
+use crate::swc_ecma_ast;
+use serde::Serialize;
 
 #[derive(Debug, Serialize, Clone)]
 #[serde(rename_all = "camelCase")]
 pub struct TypeAliasDef {
   pub ts_type: TsTypeDef,
-  // TODO: type_params
+  pub type_params: Vec<TsTypeParamDef>,
 }
 
 pub fn get_doc_for_ts_type_alias_decl(
@@ -18,8 +19,13 @@ pub fn get_doc_for_ts_type_alias_decl(
 ) -> (String, TypeAliasDef) {
   let alias_name = type_alias_decl.id.sym.to_string();
   let ts_type = type_alias_decl.type_ann.as_ref().into();
-
-  let type_alias_def = TypeAliasDef { ts_type };
+  let type_params = maybe_type_param_decl_to_type_param_defs(
+    type_alias_decl.type_params.as_ref(),
+  );
+  let type_alias_def = TypeAliasDef {
+    ts_type,
+    type_params,
+  };
 
   (alias_name, type_alias_def)
 }