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Add JS_NewTypedArray() #272

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May 8, 2024
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10 changes: 10 additions & 0 deletions quickjs.c
Original file line number Diff line number Diff line change
Expand Up @@ -53393,6 +53393,16 @@ 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. */
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17 changes: 17 additions & 0 deletions quickjs.h
Original file line number Diff line number Diff line change
Expand Up @@ -824,6 +824,23 @@ 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,
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