feat(napi-derive): support renmae function args and return type

examples/napi/__test__/typegen.spec.ts.md

@@ -42,6 +42,7 @@ Generated by [AVA](https://avajs.dev).
     export function createExternalString(content: string): ExternalObject<string>␊
     export function getExternal(external: ExternalObject<number>): number␊
     export function mutateExternal(external: ExternalObject<number>, newVal: number): void␊
+    export function tsRename(a: { foo: number }): string[]␊
     export function xxh64Alias(input: Buffer): BigInt␊
     export function mapOption(val?: number | undefined | null): number | undefined | null␊
     export function add(a: number, b: number): number␊

examples/napi/__test__/values.spec.ts

@@ -55,6 +55,7 @@ import {
   xxh2,
   xxh3,
   xxh64Alias,
+  tsRename,
 } from '../'
 
 test('export const', (t) => {
@@ -194,6 +195,10 @@ test('Result', (t) => {
   t.throws(() => throwError(), null, 'Manual Error')
 })
 
+test('function ts type override', (t) => {
+  t.deepEqual(tsRename({ foo: 1, bar: 2, baz: 2 }), ['foo', 'bar', 'baz'])
+})
+
 test('serde-json', (t) => {
   const packageJson = readPackageJson()
   t.is(packageJson.name, 'napi-rs')

examples/napi/index.d.ts

@@ -32,6 +32,7 @@ export function createExternal(size: number): ExternalObject<number>
 export function createExternalString(content: string): ExternalObject<string>
 export function getExternal(external: ExternalObject<number>): number
 export function mutateExternal(external: ExternalObject<number>, newVal: number): void
+export function tsRename(a: { foo: number }): string[]
 export function xxh64Alias(input: Buffer): BigInt
 export function mapOption(val?: number | undefined | null): number | undefined | null
 export function add(a: number, b: number): number

examples/napi/src/fn_ts_override.rs

@@ -0,0 +1,6 @@
+use napi::bindgen_prelude::{Object, Result};
+
+#[napi(ts_args_type = "a: { foo: number }", ts_return_type = "string[]")]
+fn ts_rename(a: Object) -> Result<Object> {
+  a.get_property_names()
+}

examples/napi/src/lib.rs

@@ -16,6 +16,7 @@ mod either;
 mod r#enum;
 mod error;
 mod external;
+mod fn_ts_override;
 mod js_mod;
 mod nullable;
 mod number;