From 4baff91a580c84332bd144770eb256986dc5910a Mon Sep 17 00:00:00 2001
From: Ouyang Yadong <oyydoibh@gmail.com>
Date: Mon, 15 Jun 2020 21:15:37 +0800
Subject: [PATCH] feat(napi): impl is_date

---
 napi/src/lib.rs        |  9 +++++++++
 test_module/spawn.js   |  4 ++++
 test_module/src/lib.rs | 12 +++++++++++-
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/napi/src/lib.rs b/napi/src/lib.rs
index 05fa35a1..3f906e47 100644
--- a/napi/src/lib.rs
+++ b/napi/src/lib.rs
@@ -1042,6 +1042,15 @@ impl Value<Object> {
     Ok(length)
   }
 
+  pub fn is_date(&self) -> Result<bool> {
+    let mut is_date = true;
+    let status = unsafe {
+      sys::napi_is_date(self.env, self.raw_value(), &mut is_date)
+    };
+    check_status(status)?;
+    Ok(is_date)
+  }
+
   fn raw_value(&self) -> sys::napi_value {
     self.raw_value
   }
diff --git a/test_module/spawn.js b/test_module/spawn.js
index 56a6417f..09e01573 100644
--- a/test_module/spawn.js
+++ b/test_module/spawn.js
@@ -1,3 +1,4 @@
+const assert = require('assert')
 const testModule = require('./index.node')
 
 function testSpawnThread(n) {
@@ -14,3 +15,6 @@ testSpawnThread(20)
     console.error(e)
     process.exit(1)
   })
+
+assert(testModule.testObjectIsDate({}) === false)
+assert(testModule.testObjectIsDate(new Date()) === true)
diff --git a/test_module/src/lib.rs b/test_module/src/lib.rs
index d0d86b1c..1d7debd1 100644
--- a/test_module/src/lib.rs
+++ b/test_module/src/lib.rs
@@ -3,7 +3,7 @@ extern crate napi_rs as napi;
 #[macro_use]
 extern crate napi_rs_derive;
 
-use napi::{Any, CallContext, Env, Error, Number, Object, Result, Status, Task, Value};
+use napi::{Any, CallContext, Env, Error, Number, Object, Result, Status, Task, Value, Boolean};
 use std::convert::TryInto;
 
 register_module!(test_module, init);
@@ -14,6 +14,10 @@ fn init(env: &Env, exports: &mut Value<Object>) -> Result<()> {
     "testSpawnThread",
     env.create_function("testSpawnThread", test_spawn_thread)?,
   )?;
+  exports.set_named_property(
+    "testObjectIsDate",
+    env.create_function("testObjectIsDate", test_object_is_date)?
+  )?;
   Ok(())
 }
 
@@ -59,3 +63,9 @@ fn test_spawn_thread(ctx: CallContext) -> Result<Value<Object>> {
 fn test_throw(_ctx: CallContext) -> Result<Value<Any>> {
   Err(Error::from_status(Status::GenericFailure))
 }
+
+#[js_function(1)]
+fn test_object_is_date(ctx: CallContext) -> Result<Value<Boolean>> {
+  let obj: Value<Object> = ctx.get::<Object>(0)?;
+  Ok(Env::get_boolean(ctx.env, obj.is_date()?)?)
+}