refactor(napi-sys): remove bindgen

.cirrus.yml

@@ -7,7 +7,7 @@ task:
     DEBUG: 'napi:*'
   setup_script:
     - pkg update
-    - pkg install -y -f curl node yarn npm libnghttp2 llvm
+    - pkg install -y -f curl node yarn npm libnghttp2
     - curl https://sh.rustup.rs -sSf --output rustup.sh
     - sh rustup.sh -y --profile minimal --default-toolchain stable
     - . $HOME/.cargo/env

.github/workflows/bench.yaml

@@ -18,9 +18,10 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Setup node
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2-beta
         with:
           node-version: 14
+          check-latest: true
 
       - name: Install
         uses: actions-rs/toolchain@v1

.github/workflows/lint.yaml

@@ -14,9 +14,10 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Setup node
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2-beta
         with:
-          node-version: 12
+          node-version: 14
+          check-latest: true
 
       - name: Install
         uses: actions-rs/toolchain@v1

.github/workflows/linux-aarch64.yaml

@@ -21,9 +21,10 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Setup node
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2-beta
         with:
           node-version: 14
+          check-latest: true
 
       - name: Install
         uses: actions-rs/toolchain@v1

.github/workflows/linux-musl.yaml

@@ -42,10 +42,6 @@ jobs:
         run: |
           docker run --rm -v $(pwd)/.cargo:/root/.cargo -v $(pwd):/napi-rs -w /napi-rs builder cargo check -vvv
 
-      - name: Run tests
-        run: |
-          docker run --rm -v $(pwd)/.cargo:/root/.cargo -v $(pwd):/napi-rs -w /napi-rs builder cargo test -p napi-sys --lib -- --nocapture
-
       - name: Unit test
         run: |
           docker run --rm -v $(pwd)/.cargo:/root/.cargo -v $(pwd):/napi-rs -w /napi-rs builder sh -c "yarn build:test && yarn test"

.github/workflows/napi3.yaml

@@ -69,16 +69,9 @@ jobs:
           command: check
           args: --all --bins --examples --tests -vvv
 
-      - name: Tests
-        uses: actions-rs/cargo@v1
-        timeout-minutes: 5
-        with:
-          command: test
-          args: -p napi-sys --lib -- --nocapture
-
       - name: Unit tests
         run: |
-          yarn --cwd ./test_module --ignore-engines build
+          yarn --cwd ./test_module --ignore-engines build-napi3
           yarn --ignore-engines test
         env:
           RUST_BACKTRACE: 1

.github/workflows/test.yaml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: ['10', '12', '14']
+        node: ['10', '12', '14', '15']
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     name: stable - ${{ matrix.os }} - node@${{ matrix.node }}
@@ -23,19 +23,10 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Setup node
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2-beta
         with:
           node-version: ${{ matrix.node }}
-
+          check-latest: true
-      - name: Install llvm
-        if: matrix.os == 'windows-latest'
-        run: choco install -y llvm
-
-      - name: Set llvm path
-        if: matrix.os == 'windows-latest'
-        uses: allenevans/set-env@v1.1.0
-        with:
-          LIBCLANG_PATH: 'C:\Program Files\LLVM\bin'
 
       - name: Install
         uses: actions-rs/toolchain@v1
@@ -81,13 +72,6 @@ jobs:
           command: check
           args: --all --bins --examples --tests -vvv
 
-      - name: Tests
-        uses: actions-rs/cargo@v1
-        timeout-minutes: 5
-        with:
-          command: test
-          args: -p napi-sys --lib -- --nocapture
-
       - name: Unit tests
         run: |
           yarn build:test

.github/workflows/windows-i686.yml

@@ -17,17 +17,27 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Setup node
-        uses: actions/setup-node@v1
+        run: choco install nodejs-lts --x86 -y --force
-        with:
-          node-version: 14
 
-      - name: Install llvm
+      - name: Set 32bit NodeJS path
-        run: choco install -y llvm
+        run: |
-
+          echo "C:\\Program Files (x86)\\nodejs" >> $GITHUB_PATH
-      - name: Set llvm path
-        run: echo "LIBCLANG_PATH=C:\\Program Files\\LLVM\\bin" >> $GITHUB_ENV
         shell: bash
 
+      - name: Cache NPM dependencies
+        uses: actions/cache@v1
+        with:
+          path: node_modules
+          key: npm-cache-windows-i686-node@lts-${{ hashFiles('yarn.lock') }}
+          restore-keys: |
+            npm-cache-
+
+      - name: 'Install dependencies'
+        run: yarn install --frozen-lockfile --registry https://registry.npmjs.org
+
+      - name: 'Build TypeScript'
+        run: yarn build
+
       - name: Install
         uses: actions-rs/toolchain@v1
         with:
@@ -47,13 +57,13 @@ jobs:
         uses: actions/cache@v1
         with:
           path: ~/.cargo/registry
-          key: stable-${{ matrix.os }}-node@${{ matrix.node }}-cargo-registry-trimmed-${{ hashFiles('**/Cargo.lock') }}
+          key: stable-windows-i686-node@lts-cargo-registry-trimmed-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo index
         uses: actions/cache@v1
         with:
           path: ~/.cargo/git
-          key: stable-${{ matrix.os }}gnu-node@${{ matrix.node }}-cargo-index-trimmed-${{ hashFiles('**/Cargo.lock') }}
+          key: stable-windows-i686-node@lts-cargo-index-trimmed-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Check build
         uses: actions-rs/cargo@v1
@@ -61,12 +71,12 @@ jobs:
           command: check
           args: --all --bins --examples --tests --target i686-pc-windows-msvc -vvv
 
-      - name: Tests
+      - name: Build Tests
-        uses: actions-rs/cargo@v1
+        run: |
-        timeout-minutes: 5
+          yarn --cwd ./test_module build-i686
-        with:
+          yarn test
-          command: test
+        env:
-          args: -p napi-sys --lib --target i686-pc-windows-msvc -- --nocapture
+          RUST_BACKTRACE: 1
 
       - name: Clear the cargo caches
         run: |

README.md

@@ -28,9 +28,9 @@ A minimal library for building compiled `NodeJS` add-ons in `Rust`.
 
 ## NodeJS
 
-| Node10 | Node 12 | Node14 |
+| Node10 | Node 12 | Node14 | Node15 |
-| ------ | ------- | ------ |
+| ------ | ------- | ------ | ------ |
-| ✓      | ✓       | ✓      |
+| ✓      | ✓       | ✓      | ✓      |
 
 This library depends on N-API and requires `Node@8.9` or later.
 

bench/Cargo.toml

@@ -8,14 +8,8 @@ version = "0.1.0"
 crate-type = ["cdylib"]
 
 [dependencies]
-futures = "0.3"
+napi = {path = "../napi"}
-napi = {path = "../napi", features = ["libuv", "tokio_rt", "serde-json", "latin1"]}
 napi-derive = {path = "../napi-derive"}
-serde = "1"
-serde_bytes = "0.11"
-serde_derive = "1"
-serde_json = "1"
-tokio = {version = "0.2", features = ["default", "fs"]}
 
 [build-dependencies]
 napi-build = {path = "../build"}

build/src/lib.rs

@@ -1,40 +1,11 @@
 cfg_if::cfg_if! {
-    if #[cfg(windows)] {
+  if #[cfg(windows)] {
-      mod windows;
+    mod windows;
-      pub use windows::setup;
+    pub use windows::setup;
-    } else if #[cfg(target_os = "macos")] {
+  } else if #[cfg(target_os = "macos")] {
-      mod macos;
+    mod macos;
-      pub use macos::setup;
+    pub use macos::setup;
-    } else {
-      pub fn setup() {
-        setup_napi_feature();
-      }
-    }
-}
-
-use std::process::Command;
-
-pub fn setup_napi_feature() {
-  let napi_version = String::from_utf8(
-    Command::new("node")
-      .args(&["-e", "console.log(process.versions.napi)"])
-      .output()
-      .unwrap()
-      .stdout,
-  )
-  .expect("Get NAPI version failed");
-
-  let napi_version_number = napi_version.trim().parse::<u32>().unwrap();
-
-  if napi_version_number < 2 {
-    panic!("current napi version is too low");
-  }
-
-  if napi_version_number == 2 {
-    println!("cargo:rustc-cfg=napi{}", napi_version_number);
   } else {
-    for version in 2..(napi_version_number + 1) {
+    pub fn setup() { }
-      println!("cargo:rustc-cfg=napi{}", version);
-    }
   }
 }

build/src/macos.rs

@@ -1,8 +1,5 @@
-use crate::*;
-
 pub fn setup() {
   println!("cargo:rustc-cdylib-link-arg=-Wl");
   println!("cargo:rustc-cdylib-link-arg=-undefined");
   println!("cargo:rustc-cdylib-link-arg=dynamic_lookup");
-  setup_napi_feature();
 }

build/src/windows.rs

@@ -1,9 +1,9 @@
-use crate::*;
 use std::collections::hash_map::DefaultHasher;
 use std::fs::{metadata, write};
 use std::hash::{Hash, Hasher};
 use std::io::Read;
 use std::path::PathBuf;
+use std::process::Command;
 
 fn get_node_version() -> std::io::Result<String> {
   let output = Command::new("node").arg("-v").output()?;
@@ -51,16 +51,17 @@ pub fn setup() {
   // See https://doc.rust-lang.org/reference/conditional-compilation.html#target_arch for rust env values.
   // Nodejs appears to follow `process.arch`.
   // See https://nodejs.org/docs/latest/api/process.html#process_process_arch for npm env values.
+  // For windows, we only support `['ia32', 'x64', 'arm64']`
+  // https://github.com/nodejs/node-gyp/blob/master/lib/install.js#L301
   let arch = std::env::var("CARGO_CFG_TARGET_ARCH")
     .map(|arch| match arch.as_str() {
-      "x86" => "x86", // TODO: x86 appears to also be called ia32 in npm_config_arch sometimes. What is the right value?
+      "x86" => "x86",
       "x86_64" => "x64",
-      "mips" => "mips",
+      // https://github.com/nodejs/node/issues/25998
-      "powerpc" => "ppc",
+      // actually not supported for now
-      "powerpc64" => "ppc64",
+      // because we can not get `node.lib` file for `aarch64` device
-      "arm" => "arm",
       "aarch64" => "arm64",
-      arch => panic!("Unknown Architecture: {}", arch),
+      arch => panic!("Unsupported CPU Architecture: {}", arch),
     })
     .expect("Failed to determine target arch");
 
@@ -106,6 +107,4 @@ pub fn setup() {
   );
   println!("cargo:rustc-cdylib-link-arg=delayimp.lib");
   println!("cargo:rustc-cdylib-link-arg=/DELAYLOAD:node.exe");
-
-  setup_napi_feature();
 }

napi/Cargo.toml

@@ -10,8 +10,15 @@ repository = "https://github.com/napi-rs/napi-rs"
 version = "0.5.1"
 
 [features]
+default = ["napi3"] # for most NodeJS users
 latin1 = ["encoding_rs"]
-libuv = ["futures"]
+napi1 = []
+napi2 = ["napi1"]
+napi3 = ["napi2", "napi-sys/napi3"]
+napi4 = ["napi3", "napi-sys/napi4"]
+napi5 = ["napi4", "napi-sys/napi5"]
+napi6 = ["napi5", "napi-sys/napi6"]
+napi7 = ["napi6", "napi-sys/napi7"]
 serde-json = ["serde", "serde_json"]
 tokio_rt = ["futures", "tokio", "once_cell"]
 
@@ -51,4 +58,3 @@ napi-build = {version = "0.2", path = "../build"}
 
 [package.metadata.docs.rs]
 all-features = true
-rustc-args = ["--cfg", "napidocsrs"]

napi/build.rs

@@ -1,3 +0,0 @@
-fn main() {
-  napi_build::setup_napi_feature();
-}

napi/src/env.rs

@@ -5,30 +5,29 @@ use std::mem;
 use std::os::raw::{c_char, c_void};
 use std::ptr;
 
-use super::cleanup_env::{CleanupEnvHook, CleanupEnvHookData};
 use crate::async_work::{self, AsyncWorkPromise};
 use crate::error::check_status;
 use crate::js_values::*;
 use crate::task::Task;
 use crate::{sys, Error, NodeVersion, Result, Status};
 
+#[cfg(feature = "napi3")]
+use super::cleanup_env::{CleanupEnvHook, CleanupEnvHookData};
 #[cfg(all(feature = "serde-json"))]
 use crate::js_values::{De, Ser};
-#[cfg(all(any(feature = "libuv", feature = "tokio_rt"), napi4))]
+#[cfg(all(feature = "tokio_rt", feature = "napi4"))]
 use crate::promise;
-#[cfg(napi4)]
+#[cfg(feature = "napi4")]
 use crate::threadsafe_function::{ThreadSafeCallContext, ThreadsafeFunction};
-#[cfg(all(feature = "tokio_rt", napi4))]
+#[cfg(all(feature = "tokio_rt", feature = "napi4"))]
 use crate::tokio_rt::{get_tokio_sender, Message};
-#[cfg(all(feature = "libuv", napi4))]
-use crate::uv;
 #[cfg(all(feature = "serde-json"))]
 use serde::de::DeserializeOwned;
 #[cfg(all(feature = "serde-json"))]
 use serde::Serialize;
-#[cfg(all(feature = "libuv", napi4))]
+#[cfg(all(feature = "tokio_rt", feature = "napi4"))]
 use std::future::Future;
-#[cfg(all(feature = "tokio_rt", napi4))]
+#[cfg(all(feature = "tokio_rt", feature = "napi4"))]
 use tokio::sync::mpsc::error::TrySendError;
 
 pub type Callback = extern "C" fn(sys::napi_env, sys::napi_callback_info) -> sys::napi_value;
@@ -90,7 +89,7 @@ impl Env {
     Ok(JsNumber::from_raw_unchecked(self.0, raw_value))
   }
 
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   /// [n_api_napi_create_bigint_int64](https://nodejs.org/api/n-api.html#n_api_napi_create_bigint_int64)
   pub fn create_bigint_from_i64(&self, value: i64) -> Result<JsBigint> {
     let mut raw_value = ptr::null_mut();
@@ -98,14 +97,14 @@ impl Env {
     Ok(JsBigint::from_raw_unchecked(self.0, raw_value, 1))
   }
 
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   pub fn create_bigint_from_u64(&self, value: u64) -> Result<JsBigint> {
     let mut raw_value = ptr::null_mut();
     check_status(unsafe { sys::napi_create_bigint_uint64(self.0, value, &mut raw_value) })?;
     Ok(JsBigint::from_raw_unchecked(self.0, raw_value, 1))
   }
 
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   pub fn create_bigint_from_i128(&self, value: i128) -> Result<JsBigint> {
     let mut raw_value = ptr::null_mut();
     let sign_bit = if value > 0 { 0 } else { 1 };
@@ -116,7 +115,7 @@ impl Env {
     Ok(JsBigint::from_raw_unchecked(self.0, raw_value, 1))
   }
 
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   pub fn create_bigint_from_u128(&self, value: u128) -> Result<JsBigint> {
     let mut raw_value = ptr::null_mut();
     let words = &value as *const u128 as *const u64;
@@ -124,7 +123,7 @@ impl Env {
     Ok(JsBigint::from_raw_unchecked(self.0, raw_value, 1))
   }
 
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   /// [n_api_napi_create_bigint_words](https://nodejs.org/api/n-api.html#n_api_napi_create_bigint_words)
   /// The resulting BigInt will be negative when sign_bit is true.
   pub fn create_bigint_from_words(&self, sign_bit: bool, words: Vec<u64>) -> Result<JsBigint> {
@@ -549,14 +548,14 @@ impl Env {
       .map_err(|e| Error::new(Status::InvalidArg, format!("{}", e)))
   }
 
-  #[cfg(napi2)]
+  #[cfg(feature = "napi2")]
   pub fn get_uv_event_loop(&self) -> Result<*mut sys::uv_loop_s> {
     let mut uv_loop: *mut sys::uv_loop_s = ptr::null_mut();
     check_status(unsafe { sys::napi_get_uv_event_loop(self.0, &mut uv_loop) })?;
     Ok(uv_loop)
   }
 
-  #[cfg(napi3)]
+  #[cfg(feature = "napi3")]
   pub fn add_env_cleanup_hook<T, F>(
     &mut self,
     cleanup_data: T,
@@ -581,7 +580,7 @@ impl Env {
     Ok(CleanupEnvHook(hook_ref))
   }
 
-  #[cfg(napi3)]
+  #[cfg(feature = "napi3")]
   pub fn remove_env_cleanup_hook<T>(&mut self, hook: CleanupEnvHook<T>) -> Result<()>
   where
     T: 'static,
@@ -591,7 +590,7 @@ impl Env {
     })
   }
 
-  #[cfg(napi4)]
+  #[cfg(feature = "napi4")]
   pub fn create_threadsafe_function<
     T: Send,
     V: NapiValue,
@@ -605,31 +604,7 @@ impl Env {
     ThreadsafeFunction::create(self.0, func, max_queue_size, callback)
   }
 
-  #[cfg(all(feature = "libuv", napi4))]
+  #[cfg(all(feature = "tokio_rt", feature = "napi4"))]
-  pub fn execute<
-    T: 'static + Send,
-    V: 'static + NapiValue,
-    F: 'static + Future<Output = Result<T>>,
-    R: 'static + Send + Sync + FnOnce(&mut Env, T) -> Result<V>,
-  >(
-    &self,
-    deferred: F,
-    resolver: R,
-  ) -> Result<JsObject> {
-    let mut raw_promise = ptr::null_mut();
-    let mut raw_deferred = ptr::null_mut();
-
-    check_status(unsafe { sys::napi_create_promise(self.0, &mut raw_deferred, &mut raw_promise) })?;
-
-    let event_loop = self.get_uv_event_loop()?;
-    let future_promise = promise::FuturePromise::create(self.0, raw_deferred, Box::from(resolver))?;
-    let future_to_execute = promise::resolve_from_future(future_promise.start()?, deferred);
-    uv::execute(event_loop, Box::pin(future_to_execute))?;
-
-    Ok(JsObject::from_raw_unchecked(self.0, raw_promise))
-  }
-
-  #[cfg(all(feature = "tokio_rt", napi4))]
   pub fn execute_tokio_future<
     T: 'static + Send,
     V: 'static + NapiValue,
@@ -664,7 +639,7 @@ impl Env {
     Ok(JsObject::from_raw_unchecked(self.0, raw_promise))
   }
 
-  #[cfg(napi5)]
+  #[cfg(feature = "napi5")]
   pub fn create_date(&self, time: f64) -> Result<JsDate> {
     let mut js_value = ptr::null_mut();
     check_status(unsafe { sys::napi_create_date(self.0, time, &mut js_value) })?;
@@ -738,6 +713,11 @@ impl Env {
     let version = unsafe { *result };
     version.try_into()
   }
+
+  /// get raw env ptr
+  pub fn raw(&self) -> sys::napi_env {
+    self.0
+  }
 }
 
 unsafe extern "C" fn drop_buffer(env: sys::napi_env, finalize_data: *mut c_void, len: *mut c_void) {
@@ -759,6 +739,7 @@ unsafe extern "C" fn raw_finalize<T>(
   Box::from_raw(tagged_object);
 }
 
+#[cfg(feature = "napi3")]
 unsafe extern "C" fn cleanup_env<T: 'static>(hook_data: *mut c_void) {
   let cleanup_env_hook = Box::from_raw(hook_data as *mut CleanupEnvHookData<T>);
   (cleanup_env_hook.hook)(cleanup_env_hook.data);

napi/src/js_values/arraybuffer.rs

@@ -7,7 +7,7 @@ use std::ptr;
 
 use super::{Value, ValueType};
 use crate::error::check_status;
-use crate::{sys, Error, JsUnknown, NapiValue, Ref, Result, Status};
+use crate::{sys, Error, JsUnknown, NapiValue, Ref, Result};
 
 #[repr(transparent)]
 #[derive(Debug)]
@@ -44,6 +44,7 @@ pub struct JsDataViewValue {
   pub length: u64,
 }
 
+#[repr(u8)]
 #[derive(Debug)]
 pub enum TypedArrayType {
   Int8,
@@ -55,9 +56,9 @@ pub enum TypedArrayType {
   Uint32,
   Float32,
   Float64,
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   BigInt64,
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   BigUint64,
 }
 
@@ -75,11 +76,10 @@ impl TryFrom<sys::napi_typedarray_type> for TypedArrayType {
       sys::napi_typedarray_type::napi_uint32_array => Ok(Self::Uint32),
       sys::napi_typedarray_type::napi_float32_array => Ok(Self::Float32),
       sys::napi_typedarray_type::napi_float64_array => Ok(Self::Float64),
-      #[cfg(napi6)]
+      #[cfg(feature = "napi6")]
       sys::napi_typedarray_type::napi_bigint64_array => Ok(Self::BigInt64),
-      #[cfg(napi6)]
+      #[cfg(feature = "napi6")]
       sys::napi_typedarray_type::napi_biguint64_array => Ok(Self::BigUint64),
-      _ => Err(Error::from_status(Status::Unknown)),
     }
   }
 }
@@ -96,21 +96,21 @@ impl From<TypedArrayType> for sys::napi_typedarray_type {
       TypedArrayType::Uint32 => sys::napi_typedarray_type::napi_uint32_array,
       TypedArrayType::Float32 => sys::napi_typedarray_type::napi_float32_array,
       TypedArrayType::Float64 => sys::napi_typedarray_type::napi_float64_array,
-      #[cfg(napi6)]
+      #[cfg(feature = "napi6")]
       TypedArrayType::BigInt64 => sys::napi_typedarray_type::napi_bigint64_array,
-      #[cfg(napi6)]
+      #[cfg(feature = "napi6")]
       TypedArrayType::BigUint64 => sys::napi_typedarray_type::napi_biguint64_array,
     }
   }
 }
 
 impl JsArrayBuffer {
-  #[cfg(napi7)]
+  #[cfg(feature = "napi7")]
   pub fn detach(self) -> Result<()> {
     check_status(unsafe { sys::napi_detach_arraybuffer(self.0.env, self.0.value) })
   }
 
-  #[cfg(napi7)]
+  #[cfg(feature = "napi7")]
   pub fn is_detached(&self) -> Result<bool> {
     let mut is_detached = false;
     check_status(unsafe {

napi/src/js_values/bigint.rs

@@ -71,7 +71,7 @@ impl JsBigint {
   }
 
   #[inline]
-  #[cfg(napi5)]
+  #[cfg(feature = "napi5")]
   pub fn is_date(&self) -> Result<bool> {
     let mut is_date = true;
     check_status(unsafe { sys::napi_is_date(self.raw.env, self.raw.value, &mut is_date) })?;

napi/src/js_values/de.rs

@@ -4,7 +4,7 @@ use serde::de::Visitor;
 use serde::de::{DeserializeSeed, EnumAccess, MapAccess, SeqAccess, Unexpected, VariantAccess};
 
 use super::{type_of, NapiValue, Value, ValueType};
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 use crate::JsBigint;
 use crate::{
   Error, JsBoolean, JsBufferValue, JsNumber, JsObject, JsString, JsUnknown, Result, Status,
@@ -52,7 +52,7 @@ impl<'x, 'de, 'env> serde::de::Deserializer<'x> for &'de mut De<'env> {
           visitor.visit_map(&mut deserializer)
         }
       }
-      #[cfg(napi6)]
+      #[cfg(feature = "napi6")]
       ValueType::Bigint => {
         let mut js_bigint = JsBigint::from_raw(self.0.env, self.0.value)?;
         let (signed, v, _loss) = js_bigint.get_u128()?;

napi/src/js_values/mod.rs

@@ -11,11 +11,11 @@ mod de;
 mod ser;
 
 mod arraybuffer;
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 mod bigint;
 mod boolean;
 mod buffer;
-#[cfg(napi5)]
+#[cfg(feature = "napi5")]
 mod date;
 mod either;
 mod escapable_handle_scope;
@@ -32,11 +32,11 @@ mod value_ref;
 mod value_type;
 
 pub use arraybuffer::*;
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 pub use bigint::JsBigint;
 pub use boolean::JsBoolean;
 pub use buffer::*;
-#[cfg(napi5)]
+#[cfg(feature = "napi5")]
 pub use date::*;
 #[cfg(feature = "serde-json")]
 pub(crate) use de::De;
@@ -78,7 +78,7 @@ pub(crate) fn type_of(env: sys::napi_env, raw_value: sys::napi_value) -> Result<
   unsafe {
     let mut value_type = sys::napi_valuetype::napi_undefined;
     check_status(sys::napi_typeof(env, raw_value, &mut value_type))?;
-    ValueType::try_from(value_type)
+    Ok(ValueType::from(value_type))
   }
 }
 
@@ -171,7 +171,7 @@ macro_rules! impl_js_value_methods {
       }
 
       #[inline]
-      #[cfg(napi5)]
+      #[cfg(feature = "napi5")]
       pub fn is_date(&self) -> Result<bool> {
         let mut is_date = true;
         check_status(unsafe { sys::napi_is_date(self.0.env, self.0.value, &mut is_date) })?;
@@ -363,7 +363,7 @@ macro_rules! impl_object_methods {
 
       /// https://nodejs.org/api/n-api.html#n_api_napi_get_all_property_names
       /// return `Array` of property names
-      #[cfg(napi6)]
+      #[cfg(feature = "napi6")]
       pub fn get_all_property_names(
         &self,
         mode: KeyCollectionMode,
@@ -484,7 +484,7 @@ impl_js_value_methods!(JsNumber);
 impl_js_value_methods!(JsString);
 impl_js_value_methods!(JsObject);
 impl_js_value_methods!(JsGlobal);
-#[cfg(napi5)]
+#[cfg(feature = "napi5")]
 impl_js_value_methods!(JsDate);
 impl_js_value_methods!(JsFunction);
 impl_js_value_methods!(JsExternal);
@@ -511,7 +511,7 @@ impl_napi_value_trait!(JsNumber, Number);
 impl_napi_value_trait!(JsString, String);
 impl_napi_value_trait!(JsObject, Object);
 impl_napi_value_trait!(JsGlobal, Object);
-#[cfg(napi5)]
+#[cfg(feature = "napi5")]
 impl_napi_value_trait!(JsDate, Object);
 impl_napi_value_trait!(JsTimeout, Object);
 impl_napi_value_trait!(JsFunction, Function);
@@ -535,6 +535,7 @@ impl NapiValue for JsUnknown {
     })
   }
 
+  /// get raw js value ptr
   fn raw(&self) -> sys::napi_value {
     self.0.value
   }

napi/src/js_values/object.rs

@@ -1,20 +1,22 @@
 use super::Value;
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 use crate::sys;
-use crate::{Error, Result, Status};
+#[cfg(feature = "napi6")]
+use crate::{Error, Result};
+#[cfg(feature = "napi6")]
 use std::convert::TryFrom;
 
 #[repr(transparent)]
 #[derive(Debug)]
 pub struct JsObject(pub(crate) Value);
 
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 pub enum KeyCollectionMode {
   IncludePrototypes,
   OwnOnly,
 }
 
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 impl TryFrom<sys::napi_key_collection_mode> for KeyCollectionMode {
   type Error = Error;
 
@@ -22,12 +24,11 @@ impl TryFrom<sys::napi_key_collection_mode> for KeyCollectionMode {
     match value {
       sys::napi_key_collection_mode::napi_key_include_prototypes => Ok(Self::IncludePrototypes),
       sys::napi_key_collection_mode::napi_key_own_only => Ok(Self::OwnOnly),
-      _ => Err(Error::from_status(Status::Unknown)),
     }
   }
 }
 
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 impl From<KeyCollectionMode> for sys::napi_key_collection_mode {
   fn from(value: KeyCollectionMode) -> Self {
     match value {
@@ -39,7 +40,7 @@ impl From<KeyCollectionMode> for sys::napi_key_collection_mode {
   }
 }
 
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 pub enum KeyFilter {
   AllProperties,
   Writable,
@@ -49,7 +50,7 @@ pub enum KeyFilter {
   SkipSymbols,
 }
 
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 impl TryFrom<sys::napi_key_filter> for KeyFilter {
   type Error = Error;
 
@@ -61,12 +62,11 @@ impl TryFrom<sys::napi_key_filter> for KeyFilter {
       sys::napi_key_filter::napi_key_configurable => Ok(Self::Configurable),
       sys::napi_key_filter::napi_key_skip_strings => Ok(Self::SkipStrings),
       sys::napi_key_filter::napi_key_skip_symbols => Ok(Self::SkipSymbols),
-      _ => Err(Error::from_status(Status::Unknown)),
     }
   }
 }
 
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 impl From<KeyFilter> for sys::napi_key_filter {
   fn from(value: KeyFilter) -> Self {
     match value {
@@ -80,13 +80,13 @@ impl From<KeyFilter> for sys::napi_key_filter {
   }
 }
 
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 pub enum KeyConversion {
   KeepNumbers,
   NumbersToStrings,
 }
 
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 impl TryFrom<sys::napi_key_conversion> for KeyConversion {
   type Error = Error;
 
@@ -94,12 +94,11 @@ impl TryFrom<sys::napi_key_conversion> for KeyConversion {
     match value {
       sys::napi_key_conversion::napi_key_keep_numbers => Ok(Self::KeepNumbers),
       sys::napi_key_conversion::napi_key_numbers_to_strings => Ok(Self::NumbersToStrings),
-      _ => Err(Error::from_status(Status::Unknown)),
     }
   }
 }
 
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 impl From<KeyConversion> for sys::napi_key_conversion {
   fn from(value: KeyConversion) -> Self {
     match value {

napi/src/js_values/object_property.rs

@@ -13,11 +13,11 @@ pub struct Property<'env> {
 #[repr(u32)]
 #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
 pub enum PropertyAttributes {
-  Default = sys::napi_property_attributes::napi_default.0 as _,
+  Default = sys::napi_property_attributes::napi_default as _,
-  Writable = sys::napi_property_attributes::napi_writable.0 as _,
+  Writable = sys::napi_property_attributes::napi_writable as _,
-  Enumerable = sys::napi_property_attributes::napi_enumerable.0 as _,
+  Enumerable = sys::napi_property_attributes::napi_enumerable as _,
-  Configurable = sys::napi_property_attributes::napi_configurable.0 as _,
+  Configurable = sys::napi_property_attributes::napi_configurable as _,
-  Static = sys::napi_property_attributes::napi_static.0 as _,
+  Static = sys::napi_property_attributes::napi_static as _,
 }
 
 impl From<PropertyAttributes> for sys::napi_property_attributes {

napi/src/js_values/ser.rs

@@ -1,5 +1,5 @@
 use std::result::Result as StdResult;
-#[cfg(napi6)]
+#[cfg(feature = "napi6")]
 use std::slice;
 
 use serde::{ser, Serialize, Serializer};
@@ -92,13 +92,21 @@ impl<'env> Serializer for Ser<'env> {
     self.0.create_uint32(v).map(|js_number| js_number.0)
   }
 
-  #[cfg(all(any(napi2, napi3, napi4, napi5), not(napi6)))]
+  #[cfg(all(
+    any(
+      feature = "napi2",
+      feature = "napi3",
+      feature = "napi4",
+      feature = "napi5"
+    ),
+    not(feature = "napi6")
+  ))]
   #[inline]
   fn serialize_u64(self, v: u64) -> Result<Self::Ok> {
     self.0.create_int64(v as _).map(|js_number| js_number.0)
   }
 
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   #[inline]
   fn serialize_u64(self, v: u64) -> Result<Self::Ok> {
     self
@@ -107,13 +115,21 @@ impl<'env> Serializer for Ser<'env> {
       .map(|js_number| js_number.raw)
   }
 
-  #[cfg(all(any(napi2, napi3, napi4, napi5), not(napi6)))]
+  #[cfg(all(
+    any(
+      feature = "napi2",
+      feature = "napi3",
+      feature = "napi4",
+      feature = "napi5"
+    ),
+    not(feature = "napi6")
+  ))]
   #[inline]
   fn serialize_u128(self, v: u128) -> Result<Self::Ok> {
     self.0.create_string(v.to_string().as_str()).map(|v| v.0)
   }
 
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   #[inline]
   fn serialize_u128(self, v: u128) -> Result<Self::Ok> {
     let words_ref = &v as *const _;
@@ -124,13 +140,21 @@ impl<'env> Serializer for Ser<'env> {
       .map(|v| v.raw)
   }
 
-  #[cfg(all(any(napi2, napi3, napi4, napi5), not(napi6)))]
+  #[cfg(all(
+    any(
+      feature = "napi2",
+      feature = "napi3",
+      feature = "napi4",
+      feature = "napi5"
+    ),
+    not(feature = "napi6")
+  ))]
   #[inline]
   fn serialize_i128(self, v: i128) -> Result<Self::Ok> {
     self.0.create_string(v.to_string().as_str()).map(|v| v.0)
   }
 
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   #[inline]
   fn serialize_i128(self, v: i128) -> Result<Self::Ok> {
     let words_ref = &(v as u128) as *const _;

napi/src/js_values/value_type.rs

@@ -1,11 +1,10 @@
-use std::convert::TryFrom;
 use std::convert::TryInto;
 
 use crate::{sys, Error, Result, Status};
 
+#[repr(u8)]
 #[derive(Copy, Clone, Debug, PartialEq, PartialOrd, Ord, Eq, Hash)]
 pub enum ValueType {
-  Unknown = 100,
   Undefined = 0,
   Null = 1,
   Boolean = 2,
@@ -15,8 +14,9 @@ pub enum ValueType {
   Object = 6,
   Function = 7,
   External = 8,
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   Bigint = 9,
+  Unknown = 255,
 }
 
 impl TryInto<sys::napi_valuetype> for ValueType {
@@ -25,7 +25,7 @@ impl TryInto<sys::napi_valuetype> for ValueType {
   fn try_into(self) -> Result<sys::napi_valuetype> {
     match self {
       ValueType::Unknown => Err(Error::from_status(Status::Unknown)),
-      #[cfg(napi6)]
+      #[cfg(feature = "napi6")]
       ValueType::Bigint => Ok(sys::napi_valuetype::napi_bigint),
       ValueType::Boolean => Ok(sys::napi_valuetype::napi_boolean),
       ValueType::External => Ok(sys::napi_valuetype::napi_external),
@@ -40,23 +40,20 @@ impl TryInto<sys::napi_valuetype> for ValueType {
   }
 }
 
-impl TryFrom<sys::napi_valuetype> for ValueType {
+impl From<sys::napi_valuetype> for ValueType {
-  type Error = Error;
+  fn from(value: sys::napi_valuetype) -> Self {
-
-  fn try_from(value: sys::napi_valuetype) -> Result<Self> {
     match value {
-      #[cfg(napi6)]
+      #[cfg(feature = "napi6")]
-      sys::napi_valuetype::napi_bigint => Ok(ValueType::Bigint),
+      sys::napi_valuetype::napi_bigint => ValueType::Bigint,
-      sys::napi_valuetype::napi_boolean => Ok(ValueType::Boolean),
+      sys::napi_valuetype::napi_boolean => ValueType::Boolean,
-      sys::napi_valuetype::napi_external => Ok(ValueType::External),
+      sys::napi_valuetype::napi_external => ValueType::External,
-      sys::napi_valuetype::napi_function => Ok(ValueType::Function),
+      sys::napi_valuetype::napi_function => ValueType::Function,
-      sys::napi_valuetype::napi_null => Ok(ValueType::Null),
+      sys::napi_valuetype::napi_null => ValueType::Null,
-      sys::napi_valuetype::napi_number => Ok(ValueType::Number),
+      sys::napi_valuetype::napi_number => ValueType::Number,
-      sys::napi_valuetype::napi_object => Ok(ValueType::Object),
+      sys::napi_valuetype::napi_object => ValueType::Object,
-      sys::napi_valuetype::napi_string => Ok(ValueType::String),
+      sys::napi_valuetype::napi_string => ValueType::String,
-      sys::napi_valuetype::napi_symbol => Ok(ValueType::Symbol),
+      sys::napi_valuetype::napi_symbol => ValueType::Symbol,
-      sys::napi_valuetype::napi_undefined => Ok(ValueType::Undefined),
+      sys::napi_valuetype::napi_undefined => ValueType::Undefined,
-      _ => Err(Error::from_status(Status::Unknown)),
     }
   }
 }

napi/src/lib.rs

@@ -92,23 +92,22 @@
 
 mod async_work;
 mod call_context;
+#[cfg(feature = "napi3")]
 mod cleanup_env;
 mod env;
 mod error;
 mod js_values;
 mod module;
-#[cfg(all(feature = "libuv", napi4))]
+#[cfg(all(feature = "tokio_rt", feature = "napi4"))]
 mod promise;
 mod status;
 mod task;
-#[cfg(napi3)]
+#[cfg(feature = "napi3")]
 pub use cleanup_env::CleanupEnvHook;
-#[cfg(napi4)]
+#[cfg(feature = "napi4")]
 pub mod threadsafe_function;
-#[cfg(all(feature = "tokio_rt", napi4))]
+#[cfg(all(feature = "tokio_rt", feature = "napi4"))]
 mod tokio_rt;
-#[cfg(all(feature = "libuv", napi4))]
-mod uv;
 mod version;
 #[cfg(target_os = "windows")]
 mod win_delay_load_hook;
@@ -124,7 +123,7 @@ pub use status::Status;
 pub use task::Task;
 pub use version::NodeVersion;
 
-#[cfg(all(feature = "tokio_rt", napi4))]
+#[cfg(all(feature = "tokio_rt", feature = "napi4"))]
 pub use tokio_rt::shutdown as shutdown_tokio_rt;
 
 #[cfg(feature = "serde-json")]
@@ -147,7 +146,7 @@ pub type ContextlessResult<T> = Result<Option<T>>;
 macro_rules! register_module {
   ($module_name:ident, $init:ident) => {
     #[inline]
-    #[cfg(all(feature = "tokio_rt", napi4))]
+    #[cfg(all(feature = "tokio_rt", feature = "napi4"))]
     fn check_status(code: $crate::sys::napi_status) -> Result<()> {
       use $crate::{Error, Status};
       let status = Status::from(code);
@@ -163,7 +162,7 @@ macro_rules! register_module {
     use std::ptr;
     use $crate::{sys, Env, JsObject, NapiValue};
 
-    #[cfg(all(feature = "tokio_rt", napi4))]
+    #[cfg(all(feature = "tokio_rt", feature = "napi4"))]
     use $crate::shutdown_tokio_rt;
 
     #[no_mangle]
@@ -175,11 +174,11 @@ macro_rules! register_module {
       let mut exports: JsObject = JsObject::from_raw_unchecked(raw_env, raw_exports);
       let mut cjs_module = Module { env, exports };
       let result = $init(&mut cjs_module);
-      #[cfg(all(feature = "tokio_rt", napi4))]
+      #[cfg(all(feature = "tokio_rt", feature = "napi4"))]
       let hook_result = check_status(unsafe {
         sys::napi_add_env_cleanup_hook(raw_env, Some(shutdown_tokio_rt), ptr::null_mut())
       });
-      #[cfg(not(all(feature = "tokio_rt", napi4)))]
+      #[cfg(not(all(feature = "tokio_rt", feature = "napi4")))]
       let hook_result = Ok(());
       match hook_result.and_then(move |_| result) {
         Ok(_) => cjs_module.exports.raw(),

napi/src/status.rs

@@ -17,11 +17,11 @@ pub enum Status {
   EscapeCalledTwice,
   HandleScopeMismatch,
   CallbackScopeMismatch,
-  #[cfg(napi4)]
+  #[cfg(feature = "napi4")]
   QueueFull,
-  #[cfg(napi4)]
+  #[cfg(feature = "napi4")]
   Closing,
-  #[cfg(napi6)]
+  #[cfg(feature = "napi6")]
   BigintExpected,
   Unknown,
 }
@@ -46,11 +46,11 @@ impl From<napi_status> for Status {
       napi_status::napi_escape_called_twice => EscapeCalledTwice,
       napi_status::napi_handle_scope_mismatch => HandleScopeMismatch,
       napi_status::napi_callback_scope_mismatch => CallbackScopeMismatch,
-      #[cfg(napi4)]
+      #[cfg(feature = "napi4")]
       napi_status::napi_queue_full => QueueFull,
-      #[cfg(napi4)]
+      #[cfg(feature = "napi4")]
       napi_status::napi_closing => Closing,
-      #[cfg(napi6)]
+      #[cfg(feature = "napi6")]
       napi_status::napi_bigint_expected => BigintExpected,
       _ => Unknown,
     }
@@ -75,11 +75,11 @@ impl Into<self::napi_status> for Status {
       Self::EscapeCalledTwice => napi_status::napi_escape_called_twice,
       Self::HandleScopeMismatch => napi_status::napi_handle_scope_mismatch,
       Self::CallbackScopeMismatch => napi_status::napi_callback_scope_mismatch,
-      #[cfg(napi4)]
+      #[cfg(feature = "napi4")]
       Self::QueueFull => napi_status::napi_queue_full,
-      #[cfg(napi4)]
+      #[cfg(feature = "napi4")]
       Self::Closing => napi_status::napi_closing,
-      #[cfg(napi6)]
+      #[cfg(feature = "napi6")]
       Self::BigintExpected => napi_status::napi_bigint_expected,
       Self::Unknown => napi_status::napi_generic_failure,
     }

napi/src/uv.rs

@@ -1,96 +0,0 @@
-extern crate alloc;
-
-use alloc::alloc::{alloc, Layout};
-use futures::future::LocalBoxFuture;
-use futures::task::{waker, ArcWake, Context, Poll};
-use std::future::Future;
-use std::os::raw::c_void;
-use std::pin::Pin;
-use std::sync::Arc;
-
-use crate::{sys, Error, Result, Status};
-
-struct Task<'a> {
-  future: LocalBoxFuture<'a, ()>,
-  context: Context<'a>,
-}
-
-struct UvWaker(*mut sys::uv_async_t);
-
-unsafe impl Send for UvWaker {}
-unsafe impl Sync for UvWaker {}
-
-impl UvWaker {
-  fn new(event_loop: *mut sys::uv_loop_s) -> Result<UvWaker> {
-    let uv_async_t = unsafe { alloc(Layout::new::<sys::uv_async_t>()) as *mut sys::uv_async_t };
-    unsafe {
-      let status = sys::uv_async_init(event_loop, uv_async_t, Some(poll_future));
-      if status != 0 {
-        return Err(Error::new(
-          Status::Unknown,
-          "Non-zero status returned from uv_async_init".to_owned(),
-        ));
-      }
-    };
-    Ok(UvWaker(uv_async_t))
-  }
-
-  #[inline]
-  fn assign_task(&self, mut task: Task) {
-    if !task.poll_future() {
-      let arc_task = Arc::new(task);
-      unsafe {
-        sys::uv_handle_set_data(
-          self.0 as *mut sys::uv_handle_t,
-          Arc::into_raw(arc_task) as *mut c_void,
-        )
-      };
-    } else {
-      unsafe { sys::uv_close(self.0 as *mut sys::uv_handle_t, None) };
-    };
-  }
-}
-
-impl ArcWake for UvWaker {
-  fn wake_by_ref(arc_self: &Arc<Self>) {
-    let status = unsafe { sys::uv_async_send(arc_self.0) };
-    assert!(status == 0, "wake_uv_async_by_ref failed");
-  }
-}
-
-#[inline]
-pub fn execute(event_loop: *mut sys::uv_loop_s, future: LocalBoxFuture<()>) -> Result<()> {
-  let uv_waker = UvWaker::new(event_loop)?;
-  let arc_waker = Arc::new(uv_waker);
-  let waker_to_poll = Arc::clone(&arc_waker);
-  let waker = waker(arc_waker);
-  let context = Context::from_waker(&waker);
-  let task = Task { future, context };
-  waker_to_poll.assign_task(task);
-  Ok(())
-}
-
-impl<'a> Task<'a> {
-  fn poll_future(&mut self) -> bool {
-    let mut pinned = Pin::new(&mut self.future);
-    let fut_mut = pinned.as_mut();
-    match fut_mut.poll(&mut self.context) {
-      Poll::Ready(_) => true,
-      Poll::Pending => false,
-    }
-  }
-}
-
-unsafe extern "C" fn poll_future(handle: *mut sys::uv_async_t) {
-  let data_ptr = sys::uv_handle_get_data(handle as *mut sys::uv_handle_t) as *mut Task;
-  let mut task = Arc::from_raw(data_ptr);
-  if let Some(mut_task) = Arc::get_mut(&mut task) {
-    if mut_task.poll_future() {
-      sys::uv_close(handle as *mut sys::uv_handle_t, None);
-    } else {
-      Arc::into_raw(task);
-    };
-  } else {
-    Arc::into_raw(task);
-  }
-}

sys/Cargo.toml

@@ -10,14 +10,14 @@ readme = "README.md"
 repository = "https://github.com/napi-rs/napi-rs"
 version = "0.4.7"
 
-[target.'cfg(windows)'.build-dependencies]
+[features]
-tar = "0.4"
+napi1 = []
+napi2 = ["napi1"]
+napi3 = ["napi2"]
+napi4 = ["napi3"]
+napi5 = ["napi4"]
+napi6 = ["napi5"]
+napi7 = ["napi6"]
 
 [build-dependencies]
-bindgen = {version = "0.55", default-features = false, features = ["logging", "runtime"]}
+napi-build = {version = "0.2", path = "../build"}
-glob = "0.3"
-regex = "1.3"
-semver = "0.11"
-
-[package.metadata.docs.rs]
-rustc-args = ["--cfg", "napidocsrs"]

sys/build.rs

@@ -1,125 +0,0 @@
-extern crate bindgen;
-extern crate glob;
-extern crate semver;
-#[cfg(target_os = "windows")]
-extern crate tar;
-
-use glob::glob;
-
-use std::env;
-use std::path::PathBuf;
-use std::process::Command;
-
-#[cfg(not(any(target_os = "windows", napidocsrs)))]
-const NODE_PRINT_EXEC_PATH: &'static str = "console.log(process.execPath)";
-
-fn main() {
-  let node_full_version =
-    String::from_utf8(Command::new("node").arg("-v").output().unwrap().stdout).unwrap();
-  let node_version = semver::Version::parse(node_full_version.as_str().get(1..).unwrap()).unwrap();
-
-  let node_major_version = node_version.major;
-
-  println!("cargo:rerun-if-env-changed=NODE_INCLUDE_PATH");
-  for entry in glob("./src/**/*.*").unwrap() {
-    println!(
-      "cargo:rerun-if-changed={}",
-      entry.unwrap().to_str().unwrap()
-    );
-  }
-
-  if node_major_version < 8 && node_version.minor < 9 {
-    panic!("node version is too low")
-  }
-
-  let node_include_path_buf = find_node_include_path(node_full_version.trim_end());
-
-  let node_include_path = match env::var("NODE_INCLUDE_PATH") {
-    Ok(node_include_path) => node_include_path,
-    Err(_) => node_include_path_buf.to_str().unwrap().to_owned(),
-  };
-
-  let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
-
-  let mut sys_bindings_path = PathBuf::from("src");
-  sys_bindings_path.push("bindings.h");
-
-  let mut bindgen_builder = bindgen::Builder::default()
-    .derive_default(true)
-    .header(sys_bindings_path.to_str().unwrap().to_owned())
-    .clang_arg(format!("-I{}", node_include_path))
-    .clang_arg("-target")
-    .clang_arg(env::var("TARGET").unwrap());
-
-  if let Ok(uv_include_path) = env::var("NAPI_RS_INCLUDE_PATH") {
-    bindgen_builder = bindgen_builder.clang_arg(format!("-I{}", uv_include_path));
-  }
-  if cfg!(target_os = "freebsd") {
-    bindgen_builder = bindgen_builder.clang_arg(format!(
-      "-I{}",
-      node_include_path_buf.parent().unwrap().to_str().unwrap()
-    ));
-  }
-
-  bindgen_builder
-    .newtype_enum("(napi_|uv_).+")
-    .whitelist_function("(napi_|uv_|extras_).+")
-    .whitelist_type("(napi_|uv_|extras_).+")
-    .generate()
-    .expect("Unable to generate napi bindings")
-    .write_to_file(out_path.join("bindings.rs"))
-    .expect("Unable to write napi bindings");
-}
-
-#[cfg(all(target_os = "windows", not(napidocsrs)))]
-fn find_node_include_path(node_full_version: &str) -> PathBuf {
-  let mut out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
-  out_path.push(format!("node-headers-{}.tar.gz", node_full_version));
-  let mut header_dist_path = PathBuf::from(&PathBuf::from(&out_path).parent().unwrap());
-  let unpack_path = PathBuf::from(&header_dist_path);
-  header_dist_path.push(format!("node-{}", node_full_version));
-  header_dist_path.push("include");
-  header_dist_path.push("node");
-  if !header_dist_path.exists() {
-    let script = r#"require('https').get(process.release.headersUrl, function (res) {
-      res.pipe(require('zlib').createUnzip()).pipe(process.stdout)
-    })"#;
-
-    let tar_binary = Command::new("node")
-      .arg("-e")
-      .arg(script)
-      .output()
-      .expect("Download headers file failed")
-      .stdout;
-    tar::Archive::new(tar_binary.as_slice())
-      .unpack(&unpack_path)
-      .expect("Unpack headers file failed");
-  };
-  header_dist_path
-}
-
-#[cfg(napidocsrs)]
-fn find_node_include_path(_node_full_version: &str) -> PathBuf {
-  let mut current = env::current_dir().unwrap();
-  current.push(".node-headers");
-  current
-}
-
-#[cfg(not(any(target_os = "windows", napidocsrs)))]
-fn find_node_include_path(_node_full_version: &str) -> PathBuf {
-  let node_exec_path = String::from_utf8(
-    Command::new("node")
-      .arg("-e")
-      .arg(NODE_PRINT_EXEC_PATH)
-      .output()
-      .unwrap()
-      .stdout,
-  )
-  .unwrap();
-  PathBuf::from(node_exec_path)
-    .parent()
-    .unwrap()
-    .parent()
-    .unwrap()
-    .join("include/node")
-}

sys/src/bindings.h

@@ -1,2 +0,0 @@
-#include <node_api.h>
-#include <uv.h>

sys/src/sys.rs

@@ -1,6 +0,0 @@
-#![allow(non_upper_case_globals)]
-#![allow(non_camel_case_types)]
-#![allow(non_snake_case)]
-#![allow(dead_code)]
-
-include!(concat!(env!("OUT_DIR"), "/bindings.rs"));

test_module/Cargo.toml

@@ -7,9 +7,13 @@ version = "0.1.0"
 [lib]
 crate-type = ["cdylib"]
 
+[features]
+latest = ["napi/napi7"]
+napi3 = ["napi/napi3"]
+
 [dependencies]
 futures = "0.3"
-napi = {path = "../napi", features = ["libuv", "tokio_rt", "serde-json", "latin1"]}
+napi = {path = "../napi", features = ["tokio_rt", "serde-json", "latin1"]}
 napi-derive = {path = "../napi-derive"}
 serde = "1"
 serde_bytes = "0.11"

test_module/__test__/napi4/uv.spec.ts

@@ -1,45 +0,0 @@
-import { readFileSync } from 'fs'
-import { join, resolve } from 'path'
-
-import test from 'ava'
-
-import { napiVersion } from '../napi-version'
-
-const bindings = require('../../index.node')
-
-let threadMod: any
-
-try {
-  threadMod = require('worker_threads')
-} catch (err) {
-  //
-}
-
-const filepath = join(__dirname, './example.txt')
-
-test('should execute future on libuv thread pool', async (t) => {
-  if (napiVersion < 4) {
-    t.is(bindings.uvReadFile, undefined)
-    return
-  }
-  const fileContent = await bindings.uvReadFile(filepath)
-  t.true(Buffer.isBuffer(fileContent))
-  t.deepEqual(readFileSync(filepath), fileContent)
-})
-
-if (threadMod && napiVersion >= 4) {
-  test('should execute future on libuv thread pool of "Worker"', async (t) => {
-    // Test in threads if current Node.js supports "worker_threads".`
-
-    const { Worker } = threadMod
-    const script = resolve(__dirname, './uv_worker.js')
-    const worker = new Worker(script)
-    const success = await new Promise((resolve) => {
-      worker.on('message', (success: boolean) => {
-        resolve(success)
-      })
-    })
-
-    t.is(success, true)
-  })
-}

test_module/__test__/napi4/uv_worker.js

@@ -1,19 +0,0 @@
-const { readFileSync } = require('fs')
-const { join } = require('path')
-const { isMainThread, parentPort } = require('worker_threads')
-
-const bindings = require('../../index.node')
-
-const filepath = join(__dirname, './example.txt')
-
-if (!isMainThread) {
-  ;(async () => {
-    const fileContent = await bindings.uvReadFile(filepath)
-    const success =
-      Buffer.isBuffer(fileContent) &&
-      readFileSync(filepath).toString('utf8') === fileContent.toString('utf8')
-    parentPort.postMessage(success)
-  })().catch((e) => {
-    throw e
-  })
-}

test_module/package.json

@@ -2,9 +2,11 @@
   "name": "test-module",
   "version": "1.0.0",
   "scripts": {
-    "build": "cargo build && node ../scripts/index.js build",
+    "build": "cargo build --features \"latest\" && node ../scripts/index.js build",
-    "build-aarch64": "cargo build --target aarch64-unknown-linux-gnu && node ../scripts/index.js build --target-triple aarch64-unknown-linux-gnu",
+    "build-napi3": "cargo build --features \"napi3\" && node ../scripts/index.js build",
-    "build-release": "cargo build --release && node ../scripts/index.js build --release",
+    "build-aarch64": "cargo build --features \"latest\" --target aarch64-unknown-linux-gnu && node ../scripts/index.js build --target-triple aarch64-unknown-linux-gnu",
+    "build-i686": "cargo build --features \"latest\" --target i686-pc-windows-msvc && node ../scripts/index.js build --target-triple i686-pc-windows-msvc",
+    "build-release": "cargo build --features \"latest\" --release && node ../scripts/index.js build --release",
     "test": "node ./index.js"
   }
 }

test_module/src/lib.rs

@@ -7,17 +7,14 @@ extern crate serde_derive;
 
 use napi::{Module, Result};
 
-#[cfg(napi3)]
 mod cleanup_env;
-#[cfg(napi4)]
+#[cfg(feature = "latest")]
-mod libuv;
-#[cfg(napi4)]
 mod napi4;
-#[cfg(napi5)]
+#[cfg(feature = "latest")]
 mod napi5;
-#[cfg(napi6)]
+#[cfg(feature = "latest")]
 mod napi6;
-#[cfg(napi4)]
+#[cfg(feature = "latest")]
 mod tokio_rt;
 
 mod array;
@@ -58,17 +55,14 @@ fn init(module: &mut Module) -> Result<()> {
   env::register_js(module)?;
   object::register_js(module)?;
   global::register_js(module)?;
-  #[cfg(napi3)]
   cleanup_env::register_js(module)?;
-  #[cfg(napi4)]
+  #[cfg(feature = "latest")]
   napi4::register_js(module)?;
-  #[cfg(napi4)]
+  #[cfg(feature = "latest")]
   tokio_rt::register_js(module)?;
-  #[cfg(napi4)]
+  #[cfg(feature = "latest")]
-  libuv::read_file::register_js(module)?;
-  #[cfg(napi5)]
   napi5::register_js(module)?;
-  #[cfg(napi6)]
+  #[cfg(feature = "latest")]
   napi6::register_js(module)?;
   Ok(())
 }

test_module/src/libuv/mod.rs

@@ -1 +0,0 @@
-pub mod read_file;

test_module/src/libuv/read_file.rs

@@ -1,28 +0,0 @@
-use std::fs;
-use std::thread;
-
-use futures::channel::oneshot;
-use futures::prelude::*;
-use napi::{CallContext, Error, JsObject, JsString, Module, Result, Status};
-
-#[js_function(1)]
-pub fn uv_read_file(ctx: CallContext) -> Result<JsObject> {
-  let path = ctx.get::<JsString>(0)?;
-  let (sender, receiver) = oneshot::channel();
-  let p = path.into_utf8()?.to_owned()?;
-  thread::spawn(|| {
-    let res = fs::read(p).map_err(|e| Error::new(Status::Unknown, format!("{}", e)));
-    sender.send(res).expect("Send data failed");
-  });
-  ctx.env.execute(
-    receiver
-      .map_err(|e| Error::new(Status::Unknown, format!("{}", e)))
-      .map(|x| x.and_then(|x| x)),
-    |&mut env, data| env.create_buffer_with_data(data).map(|v| v.into_raw()),
-  )
-}
-
-pub fn register_js(module: &mut Module) -> Result<()> {
-  module.create_named_method("uvReadFile", uv_read_file)?;
-  Ok(())
-}