Add `JS_NewTypedArray()` (#272)

2 files changed, 27 insertions, 0 deletions

diff --git a/lib/quickjs/quickjs.c b/lib/quickjs/quickjs.c
index 3c803906..a9589ab0 100644
--- a/lib/quickjs/quickjs.c
+++ b/lib/quickjs/quickjs.c
@@ -53512,6 +53512,16 @@ static JSValue js_typed_array_get_byteOffset(JSContext *ctx,
     return JS_NewInt32(ctx, ta->offset);
 }
 
+JSValue JS_NewTypedArray(JSContext *ctx, int argc, JSValueConst *argv,
+                         JSTypedArrayEnum type)
+{
+    if (type < JS_TYPED_ARRAY_UINT8C || type > JS_TYPED_ARRAY_FLOAT64)
+        return JS_ThrowRangeError(ctx, "invalid typed array type");
+
+    return js_typed_array_constructor(ctx, JS_UNDEFINED, argc, argv,
+                                      JS_CLASS_UINT8C_ARRAY + type);
+}
+
 /* Return the buffer associated to the typed array or an exception if
    it is not a typed array or if the buffer is detached. pbyte_offset,
    pbyte_length or pbytes_per_element can be NULL. */
diff --git a/lib/quickjs/quickjs.h b/lib/quickjs/quickjs.h
index 7b6edd1f..92caf3f5 100644
--- a/lib/quickjs/quickjs.h
+++ b/lib/quickjs/quickjs.h
@@ -832,6 +832,23 @@ JSValue JS_NewArrayBuffer(JSContext *ctx, uint8_t *buf, size_t len,
 JSValue JS_NewArrayBufferCopy(JSContext *ctx, const uint8_t *buf, size_t len);
 void JS_DetachArrayBuffer(JSContext *ctx, JSValueConst obj);
 uint8_t *JS_GetArrayBuffer(JSContext *ctx, size_t *psize, JSValueConst obj);
+
+typedef enum JSTypedArrayEnum {
+    JS_TYPED_ARRAY_UINT8C = 0,
+    JS_TYPED_ARRAY_INT8,
+    JS_TYPED_ARRAY_UINT8,
+    JS_TYPED_ARRAY_INT16,
+    JS_TYPED_ARRAY_UINT16,
+    JS_TYPED_ARRAY_INT32,
+    JS_TYPED_ARRAY_UINT32,
+    JS_TYPED_ARRAY_BIG_INT64,
+    JS_TYPED_ARRAY_BIG_UINT64,
+    JS_TYPED_ARRAY_FLOAT32,
+    JS_TYPED_ARRAY_FLOAT64,
+} JSTypedArrayEnum;
+
+JSValue JS_NewTypedArray(JSContext *ctx, int argc, JSValueConst *argv,
+                         JSTypedArrayEnum array_type);
 JSValue JS_GetTypedArrayBuffer(JSContext *ctx, JSValueConst obj,
                                size_t *pbyte_offset,
                                size_t *pbyte_length,