add all TypedArray constructors (#482)

src/binding.cc

@@ -788,8 +788,8 @@ int v8__ObjectTemplate__InternalFieldCount(const v8::ObjectTemplate& self) {
   return ptr_to_local(&self)->InternalFieldCount();
 }
 
-void v8__ObjectTemplate__SetInternalFieldCount(
-    const v8::ObjectTemplate& self, int value) {
+void v8__ObjectTemplate__SetInternalFieldCount(const v8::ObjectTemplate& self,
+                                               int value) {
   ptr_to_local(&self)->SetInternalFieldCount(value);
 }
 
@@ -936,7 +936,7 @@ const v8::Value* v8__Object__GetInternalField(const v8::Object& self,
 }
 
 void v8__Object__SetInternalField(const v8::Object& self, int index,
-                                  const v8::Value&  value) {
+                                  const v8::Value& value) {
   ptr_to_local(&self)->SetInternalField(index, ptr_to_local(&value));
 }
 
@@ -1395,11 +1395,25 @@ void v8__TryCatch__SetCaptureMessage(v8::TryCatch* self, bool value) {
   self->SetCaptureMessage(value);
 }
 
-const v8::Uint8Array* v8__Uint8Array__New(const v8::ArrayBuffer& buf_ptr,
-                                          size_t byte_offset, size_t length) {
-  return local_to_ptr(
-      v8::Uint8Array::New(ptr_to_local(&buf_ptr), byte_offset, length));
-}
+#define V(NAME)                                                          \
+  const v8::NAME* v8__##NAME##__New(const v8::ArrayBuffer& buf_ptr,      \
+                                    size_t byte_offset, size_t length) { \
+    return local_to_ptr(                                                 \
+        v8::NAME::New(ptr_to_local(&buf_ptr), byte_offset, length));     \
+  }
+
+V(Uint8Array)
+V(Uint8ClampedArray)
+V(Int8Array)
+V(Uint16Array)
+V(Int16Array)
+V(Uint32Array)
+V(Int32Array)
+V(Float32Array)
+V(Float64Array)
+V(BigUint64Array)
+V(BigInt64Array)
+#undef V
 
 const v8::Script* v8__Script__Compile(const v8::Context& context,
                                       const v8::String& source,

src/lib.rs

@@ -66,7 +66,7 @@ mod string;
 mod support;
 mod symbol;
 mod template;
-mod uint8_array;
+mod typed_array;
 mod value;
 mod value_deserializer;
 mod value_serializer;

src/typed_array.rs

@@ -0,0 +1,39 @@
+// Copyright 2019-2020 the Deno authors. All rights reserved. MIT license.
+use crate::ArrayBuffer;
+use crate::HandleScope;
+use crate::Local;
+
+macro_rules! typed_array {
+  ($name:ident, $func:ident) => {
+    use crate::$name;
+    impl $name {
+      pub fn new<'s>(
+        scope: &mut HandleScope<'s>,
+        buf: Local<ArrayBuffer>,
+        byte_offset: usize,
+        length: usize,
+      ) -> Option<Local<'s, $name>> {
+        extern "C" {
+          fn $func(
+            buf_ptr: *const ArrayBuffer,
+            byte_offset: usize,
+            length: usize,
+          ) -> *const $name;
+        }
+        unsafe { scope.cast_local(|_| $func(&*buf, byte_offset, length)) }
+      }
+    }
+  };
+}
+
+typed_array!(Uint8Array, v8__Uint8Array__New);
+typed_array!(Uint8ClampedArray, v8__Uint8ClampedArray__New);
+typed_array!(Int8Array, v8__Int8Array__New);
+typed_array!(Uint16Array, v8__Uint16Array__New);
+typed_array!(Int16Array, v8__Int16Array__New);
+typed_array!(Uint32Array, v8__Uint32Array__New);
+typed_array!(Int32Array, v8__Int32Array__New);
+typed_array!(Float32Array, v8__Float32Array__New);
+typed_array!(Float64Array, v8__Float64Array__New);
+typed_array!(BigUint64Array, v8__BigUint64Array__New);
+typed_array!(BigInt64Array, v8__BigInt64Array__New);

src/uint8_array.rs

@@ -1,26 +0,0 @@
-// Copyright 2019-2020 the Deno authors. All rights reserved. MIT license.
-use crate::ArrayBuffer;
-use crate::HandleScope;
-use crate::Local;
-use crate::Uint8Array;
-
-extern "C" {
-  fn v8__Uint8Array__New(
-    buf_ptr: *const ArrayBuffer,
-    byte_offset: usize,
-    length: usize,
-  ) -> *const Uint8Array;
-}
-
-impl Uint8Array {
-  pub fn new<'s>(
-    scope: &mut HandleScope<'s>,
-    buf: Local<ArrayBuffer>,
-    byte_offset: usize,
-    length: usize,
-  ) -> Option<Local<'s, Uint8Array>> {
-    unsafe {
-      scope.cast_local(|_| v8__Uint8Array__New(&*buf, byte_offset, length))
-    }
-  }
-}

tests/test_api.rs

@@ -2313,6 +2313,50 @@ fn uint8_array() {
   }
 }
 
+#[test]
+fn typed_array_constructors() {
+  let _setup_guard = setup();
+  let isolate = &mut v8::Isolate::new(Default::default());
+  let scope = &mut v8::HandleScope::new(isolate);
+  let context = v8::Context::new(scope);
+  let scope = &mut v8::ContextScope::new(scope, context);
+
+  let ab = v8::ArrayBuffer::new(scope, 8);
+
+  let t = v8::Uint8Array::new(scope, ab, 0, 0).unwrap();
+  assert!(t.is_uint8_array());
+
+  let t = v8::Uint8ClampedArray::new(scope, ab, 0, 0).unwrap();
+  assert!(t.is_uint8_clamped_array());
+
+  let t = v8::Int8Array::new(scope, ab, 0, 0).unwrap();
+  assert!(t.is_int8_array());
+
+  let t = v8::Uint16Array::new(scope, ab, 0, 0).unwrap();
+  assert!(t.is_uint16_array());
+
+  let t = v8::Int16Array::new(scope, ab, 0, 0).unwrap();
+  assert!(t.is_int16_array());
+
+  let t = v8::Uint32Array::new(scope, ab, 0, 0).unwrap();
+  assert!(t.is_uint32_array());
+
+  let t = v8::Int32Array::new(scope, ab, 0, 0).unwrap();
+  assert!(t.is_int32_array());
+
+  let t = v8::Float32Array::new(scope, ab, 0, 0).unwrap();
+  assert!(t.is_float32_array());
+
+  let t = v8::Float64Array::new(scope, ab, 0, 0).unwrap();
+  assert!(t.is_float64_array());
+
+  let t = v8::BigUint64Array::new(scope, ab, 0, 0).unwrap();
+  assert!(t.is_big_uint64_array());
+
+  let t = v8::BigInt64Array::new(scope, ab, 0, 0).unwrap();
+  assert!(t.is_big_int64_array());
+}
+
 #[test]
 fn dynamic_import() {
   let _setup_guard = setup();