From aeb0b4766d9554519eb4002e02910ebb2b4a0b36 Mon Sep 17 00:00:00 2001
From: LongYinan <lynweklm@gmail.com>
Date: Wed, 28 Feb 2024 14:29:02 +0800
Subject: [PATCH] fix(napi): add back the typecheck logic that was accidentally
 removed in Object::get_named_property (#1982)

- Close https://github.com/napi-rs/napi-rs/issues/1641
---
 crates/napi/src/js_values/mod.rs              |   8 ++++-
 .../__snapshots__/typegen.spec.ts.md          |   2 ++
 .../__snapshots__/typegen.spec.ts.snap        | Bin 4638 -> 4678 bytes
 .../__snapshots__/values.spec.ts.snap         | Bin 380 -> 378 bytes
 examples/napi/__tests__/values.spec.ts        |  31 ++++++++++++++++++
 examples/napi/index.cjs                       |   1 +
 examples/napi/index.d.cts                     |   2 ++
 examples/napi/src/object.rs                   |   7 ++++
 8 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/crates/napi/src/js_values/mod.rs b/crates/napi/src/js_values/mod.rs
index f4e0d8e4..2deeffa8 100644
--- a/crates/napi/src/js_values/mod.rs
+++ b/crates/napi/src/js_values/mod.rs
@@ -347,7 +347,7 @@ macro_rules! impl_object_methods {
 
       pub fn get_named_property<T>(&self, name: &str) -> Result<T>
       where
-        T: FromNapiValue,
+        T: FromNapiValue + ValidateNapiValue,
       {
         let key = CString::new(name)?;
         let mut raw_value = ptr::null_mut();
@@ -357,6 +357,12 @@ macro_rules! impl_object_methods {
           },
           "get_named_property error"
         )?;
+        unsafe { <T as ValidateNapiValue>::validate(self.0.env, raw_value) }.map_err(
+          |mut err| {
+            err.reason = format!("Object property '{name}' type mismatch. {}", err.reason);
+            err
+          },
+        )?;
         unsafe { <T as FromNapiValue>::from_napi_value(self.0.env, raw_value) }
       }
 
diff --git a/examples/napi/__tests__/__snapshots__/typegen.spec.ts.md b/examples/napi/__tests__/__snapshots__/typegen.spec.ts.md
index 3d5302db..f529533c 100644
--- a/examples/napi/__tests__/__snapshots__/typegen.spec.ts.md
+++ b/examples/napi/__tests__/__snapshots__/typegen.spec.ts.md
@@ -515,6 +515,8 @@ Generated by [AVA](https://avajs.dev).
       bird: Bird␊
     }␊
     ␊
+    export function objectGetNamedPropertyShouldPerformTypecheck(obj: { foo: number; bar: string; }): void␊
+    ␊
     export interface ObjectOnlyFromJs {␊
       count: number␊
       callback: (err: Error | null, arg: number) => any␊
diff --git a/examples/napi/__tests__/__snapshots__/typegen.spec.ts.snap b/examples/napi/__tests__/__snapshots__/typegen.spec.ts.snap
index ac1ef45aef9010e639222aeebfd120a23b38bdaf..1d5b5c85015b76e54e7a09dbd681dc8a11111ec2 100644
GIT binary patch
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diff --git a/examples/napi/__tests__/__snapshots__/values.spec.ts.snap b/examples/napi/__tests__/__snapshots__/values.spec.ts.snap
index 22206d792e490489581247c0692c5680fee4a4e0..d4241d4d7d0d6ebb4343f3ab1adc96ea29a9ee41 100644
GIT binary patch
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diff --git a/examples/napi/__tests__/values.spec.ts b/examples/napi/__tests__/values.spec.ts
index 1296ea45..a0be79d8 100644
--- a/examples/napi/__tests__/values.spec.ts
+++ b/examples/napi/__tests__/values.spec.ts
@@ -105,6 +105,7 @@ import {
   createExternalTypedArray,
   mutateTypedArray,
   receiveAllOptionalObject,
+  objectGetNamedPropertyShouldPerformTypecheck,
   fnReceivedAliased,
   ALIAS,
   appendBuffer,
@@ -487,6 +488,36 @@ Napi4Test('callback function return Promise and spawn', async (t) => {
 test('object', (t) => {
   t.deepEqual(listObjKeys({ name: 'John Doe', age: 20 }), ['name', 'age'])
   t.deepEqual(createObj(), { test: 1 })
+  t.throws(
+    () =>
+      objectGetNamedPropertyShouldPerformTypecheck({
+        // @ts-expect-error
+        foo: '2',
+        bar: '3',
+      }),
+    {
+      message: `Object property 'foo' type mismatch. Expect value to be Number, but received String`,
+      code: 'InvalidArg',
+    },
+  )
+  t.throws(
+    () =>
+      objectGetNamedPropertyShouldPerformTypecheck({
+        foo: 2,
+        // @ts-expect-error
+        bar: 3,
+      }),
+    {
+      message: `Object property 'bar' type mismatch. Expect value to be String, but received Number`,
+      code: 'InvalidArg',
+    },
+  )
+  t.notThrows(() =>
+    objectGetNamedPropertyShouldPerformTypecheck({
+      foo: 2,
+      bar: '3',
+    }),
+  )
 })
 
 test('get str from object', (t) => {
diff --git a/examples/napi/index.cjs b/examples/napi/index.cjs
index a90e361e..15c078f9 100644
--- a/examples/napi/index.cjs
+++ b/examples/napi/index.cjs
@@ -476,6 +476,7 @@ module.exports.listObjKeys = nativeBinding.listObjKeys
 module.exports.mapOption = nativeBinding.mapOption
 module.exports.mutateExternal = nativeBinding.mutateExternal
 module.exports.mutateTypedArray = nativeBinding.mutateTypedArray
+module.exports.objectGetNamedPropertyShouldPerformTypecheck = nativeBinding.objectGetNamedPropertyShouldPerformTypecheck
 module.exports.optionEnd = nativeBinding.optionEnd
 module.exports.optionOnly = nativeBinding.optionOnly
 module.exports.optionStart = nativeBinding.optionStart
diff --git a/examples/napi/index.d.cts b/examples/napi/index.d.cts
index 215487f3..40f22290 100644
--- a/examples/napi/index.d.cts
+++ b/examples/napi/index.d.cts
@@ -505,6 +505,8 @@ export interface ObjectFieldClassInstance {
   bird: Bird
 }
 
+export function objectGetNamedPropertyShouldPerformTypecheck(obj: { foo: number; bar: string; }): void
+
 export interface ObjectOnlyFromJs {
   count: number
   callback: (err: Error | null, arg: number) => any
diff --git a/examples/napi/src/object.rs b/examples/napi/src/object.rs
index 63ee457f..480b0f60 100644
--- a/examples/napi/src/object.rs
+++ b/examples/napi/src/object.rs
@@ -124,3 +124,10 @@ fn receive_object_only_from_js(
     );
   });
 }
+
+#[napi(ts_args_type = "obj: { foo: number; bar: string; }")]
+fn object_get_named_property_should_perform_typecheck(obj: Object) -> Result<()> {
+  obj.get_named_property::<u32>("foo")?;
+  obj.get_named_property::<String>("bar")?;
+  Ok(())
+}