/// <summary>
/// fill array to native js value
/// </summary>
/// <param name="arr"></param>
/// <param name="output"></param>
public void ToJsValue(object[] arr, ref JsValue output)
{
int len = arr.Length;
//alloc array
JsContext.jsvalue_alloc_array(len, ref output);
if (output.I32 != len)
{
throw new JsInteropException("can't allocate memory on the unmanaged side");
}
unsafe
{
JsValue **nativeArr = (JsValue **)output.Ptr;
for (int i = 0; i < len; i++)
{
AnyToJsValuePtr(arr[i], nativeArr[i]);
}
}
}
JsObject CreateJsDictionaryObject(ref JsValue v)
{
//js dic is key-pair object
JsObject obj = new JsObject(this._context, v.Ptr);
int count = v.I32 * 2;//key and value
unsafe
{
JsValue **arr = (JsValue **)v.Ptr;
for (int i = 0; i < count;)
{
JsValue *key = arr[i];
JsValue *value = arr[i + 1];
//TODO: review when key is not string
obj[(string)FromJsValuePtr(key)] = FromJsValuePtr(value);
i += 2;
}
}
return(obj);
}
public static extern OneByteBoolean JsValueIsEqual([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSValueRef")] JsValue *a, [NativeTypeName("JSValueRef")] JsValue *b,
[NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern UIntPtr JsObjectGetArrayBufferByteLength([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSObjectRef")] JsValue * @object, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsValue *JsObjectGetTypedArrayBuffer([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSObjectRef")] JsValue * @object, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsValue *JsObjectMakeTypedArrayWithArrayBufferAndOffset([NativeTypeName("JSContextRef")] JsContext *ctx, JsTypedArrayType arrayType, [NativeTypeName("JSObjectRef")] JsValue *buffer,
[NativeTypeName("size_t")] UIntPtr byteOffset, [NativeTypeName("size_t")] UIntPtr length, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static JsValue *JsObjectMakeTypedArrayWithBytesNoCopy(JsContext *ctx, JsTypedArrayType arrayType, void *bytes, UIntPtr byteLength, FnPtr <TypedArrayBytesDeallocatorCallback> bytesDeallocator, void *deallocatorContext,
JsValue **exception)
=> JsObjectMakeTypedArrayWithBytesNoCopy(ctx, arrayType, bytes, byteLength, (IntPtr)bytesDeallocator, deallocatorContext, exception);
public static extern JsValue *JsObjectCallAsConstructor([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSObjectRef")] JsValue * @object, [NativeTypeName("size_t")] UIntPtr argumentCount,
[NativeTypeName("const JSValueRef []")]
JsValue **arguments, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsString *JsValueToStringCopy([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSValueRef")] JsValue *value, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern double JsValueToNumber([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSValueRef")] JsValue *value, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsString *JsValueCreateJsonString([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSValueRef")] JsValue *value, [NativeTypeName("unsigned int")] uint indent,
[NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsValue *EvaluateScript([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSStringRef")] JsString *script, [NativeTypeName("JSObjectRef")] JsValue *thisObject,
[NativeTypeName("JSStringRef")] JsString *sourceUrl, int startingLineNumber, [NativeTypeName("JSValueRef *")] JsValue **exception);
public unsafe void AnyToJsValuePtr(object obj, JsValue *output)
{
if (obj == null)
{
output->Type = JsValueType.Null;
return;
}
//-----
if (obj is INativeRef)
{
//extension
INativeRef prox = (INativeRef)obj;
output->I32 = _context.KeepAliveAdd(obj);
output->Type = JsValueType.JsTypeWrap;
output->Ptr = prox.UnmanagedPtr;
return;
}
//-----
Type type = obj.GetType();
// Check for nullable types (we will cast the value out of the box later).
type = type.ExtGetInnerTypeIfNullableValue();
if (type == typeof(Boolean))
{
output->Type = JsValueType.Boolean;
output->I32 = (bool)obj ? 1 : 0;
return;
}
if (type == typeof(String) || type == typeof(Char))
{
// We need to allocate some memory on the other side;
// will be free'd by unmanaged code.
JsContext.jsvalue_alloc_string(obj.ToString(), output);
output->Type = JsValueType.String;
return;
}
//-----------------------------------------------------------
if (type == typeof(Byte))
{
output->Type = JsValueType.Integer;
output->I32 = (int)(byte)obj;
return;
}
if (type == typeof(Int16))
{
output->Type = JsValueType.Integer;
output->I32 = (int)(Int16)obj;
return;
}
if (type == typeof(UInt16))
{
output->Type = JsValueType.Integer;
output->I32 = (int)(UInt16)obj;
return;
}
if (type == typeof(Int32))
{
output->Type = JsValueType.Integer;
output->I32 = (int)obj;
return;
}
if (type == typeof(UInt32))
{
//TODO: review Type here when send to native side
output->Type = JsValueType.Integer;
output->I32 = (int)(uint)obj;
return;
}
if (type == typeof(Int64))
{
output->Type = JsValueType.Number;
output->Num = (double)(Int64)obj;
return;
}
if (type == typeof(UInt64))
{
output->Type = JsValueType.Number;
output->Num = (double)(UInt64)obj;
return;
}
if (type == typeof(Single))
{
output->Type = JsValueType.Number;
output->Num = (double)(Single)obj;
return;
}
if (type == typeof(Double))
{
output->Type = JsValueType.Number;
output->Num = (double)obj;
return;
}
if (type == typeof(Decimal))
{
//TODO: review here
//.net decimal is larger than double?
output->Type = JsValueType.Number;
output->Num = (double)(Decimal)obj;
return;
}
if (type == typeof(DateTime))
{
output->Type = JsValueType.Date;
output->Num = Convert.ToInt64(((DateTime)obj).Subtract(EPOCH).TotalMilliseconds); /*(((DateTime)obj).Ticks - 621355968000000000.0 + 26748000000000.0)/10000.0*/
return;
}
// Arrays of anything that can be cast to object[] are recursively convertef after
// allocating an appropriate jsvalue on the unmanaged side.
var array = obj as object[];
if (array != null)
{
//alloc space for array
int arrLen = array.Length;
JsContext.jsvalue_alloc_array(arrLen, output);
if (output->I32 != arrLen)
{
throw new JsInteropException("can't allocate memory on the unmanaged side");
}
//
output->Type = JsValueType.Array;
unsafe
{
JsValue **arr = (JsValue **)output->Ptr;
for (int i = 0; i < arrLen; i++)
{
AnyToJsValuePtr(array[i], arr[i]);
}
}
return;
}
// Every object explicitly converted to a value becomes an entry of the
// _keepalives list, to make sure the GC won't collect it while still in
// use by the unmanaged Javascript engine. We don't try to track duplicates
// because adding the same object more than one time acts more or less as
// reference counting.
//check
JsTypeDefinition jsTypeDefinition = _context.GetJsTypeDefinition(type);
INativeRef prox2 = _context.CreateWrapper(obj, jsTypeDefinition);
//
output->Type = JsValueType.JsTypeWrap;
output->Ptr = prox2.UnmanagedPtr;
output->I32 = prox2.ManagedIndex;
}
/// <summary>
/// convert from jsvalue to managed value
/// </summary>
/// <param name="v"></param>
/// <returns></returns>
public object FromJsValue(ref JsValue v)
{
#if DEBUG_TRACE_API
Console.WriteLine("Converting Js value to .net");
#endif
switch (v.Type)
{
case JsValueType.Empty:
case JsValueType.Null:
return(null);
case JsValueType.Boolean:
return(v.I32 != 0);
case JsValueType.Integer:
return(v.I32);
case JsValueType.Index:
return((UInt32)v.I64);
case JsValueType.Number:
return(v.Num);
case JsValueType.String:
return(Marshal.PtrToStringUni(v.Ptr));
case JsValueType.Date:
/*
* // The formula (v.num * 10000) + 621355968000000000L was taken from a StackOverflow
* // question and should be OK. Then why do we need to compensate by -26748000000000L
* // (a value determined from the failing tests)?!
* return new DateTime((long)(v.Num * 10000) + 621355968000000000L - 26748000000000L);
*/
//var msFromJsTime = v.I64 % 1000;
return(EPOCH_LocalTime.AddMilliseconds(v.I64));
case JsValueType.Array:
{
int len = v.I32;
object[] newarr = new object[len];
unsafe
{
JsValue **arr = (JsValue **)v.Ptr;
for (int i = 0; i < len; ++i)
{
newarr[i] = FromJsValuePtr(arr[i]);
}
}
return(newarr);
}
case JsValueType.UnknownError:
if (v.Ptr != IntPtr.Zero)
{
return(new JsException(Marshal.PtrToStringUni(v.Ptr)));
}
return(new JsInteropException("unknown error without reason"));
case JsValueType.StringError:
return(new JsException(Marshal.PtrToStringUni(v.Ptr)));
case JsValueType.Managed:
return(_context.KeepAliveGet(v.I32));
case JsValueType.JsTypeWrap:
//auto unwrap
return(this._context.GetObjectProxy(v.I32).WrapObject);
case JsValueType.ManagedError:
Exception inner = _context.KeepAliveGet(v.I32) as Exception;
string msg = null;
if (v.Ptr != IntPtr.Zero)
{
msg = Marshal.PtrToStringUni(v.Ptr);
}
else if (inner != null)
{
msg = inner.Message;
}
return(new JsException(msg, inner));
case JsValueType.Dictionary:
return(CreateJsDictionaryObject(ref v));
case JsValueType.Wrapped:
return(new JsObject(_context, v.Ptr));
case JsValueType.Error:
return(JsException.Create(this, v.Ptr));
case JsValueType.Function:
//convert from js function delegate to managed
//this compose of function ptr and delegate's target
unsafe
{
JsValue **arr = (JsValue **)v.Ptr;
return(new JsFunction(_context, arr[0]->Ptr, arr[1]->Ptr));
}
default:
throw new InvalidOperationException("unknown type code: " + v.Type);
}
}
public static extern OneByteBoolean JsObjectDeletePropertyForKey([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSObjectRef")] JsValue * @object, [NativeTypeName("JSValueRef")] JsValue *propertyKey,
[NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern void JsObjectSetPropertyAtIndex([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSObjectRef")] JsValue * @object, [NativeTypeName("unsigned int")] uint propertyIndex,
[NativeTypeName("JSValueRef")] JsValue *value, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsValue *JsValueToObject([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSValueRef")] JsValue *value, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsValue *JsObjectMakeTypedArray([NativeTypeName("JSContextRef")] JsContext *ctx, JsTypedArrayType arrayType, [NativeTypeName("size_t")] UIntPtr length, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern OneByteBoolean CheckScriptSyntax([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSStringRef")] JsString *script, [NativeTypeName("JSStringRef")] JsString *sourceUrl, int startingLineNumber,
[NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsValue *JsObjectMakeTypedArrayWithArrayBuffer([NativeTypeName("JSContextRef")] JsContext *ctx, JsTypedArrayType arrayType, [NativeTypeName("JSObjectRef")] JsValue *buffer,
[NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsValue *JsObjectMakeDeferredPromise([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSObjectRef *")] JsValue **resolve, [NativeTypeName("JSObjectRef *")] JsValue **reject,
[NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern UIntPtr JsObjectGetTypedArrayByteOffset([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSObjectRef")] JsValue * @object, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsValue *JsObjectMakeFunction([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSStringRef")] JsString *name, [NativeTypeName("unsigned int")] uint parameterCount,
[NativeTypeName("const JSStringRef []")]
JsString **parameterNames, [NativeTypeName("JSStringRef")] JsString *body, [NativeTypeName("JSStringRef")] JsString *sourceUrl, int startingLineNumber, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsValue *JsObjectMakeArrayBufferWithBytesNoCopy([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("void *")] void *bytes, [NativeTypeName("size_t")] UIntPtr byteLength,
[NativeTypeName("JSTypedArrayBytesDeallocator")]
IntPtr bytesDeallocator, [NativeTypeName("void *")] void *deallocatorContext, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsValue *JsObjectGetProperty([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSObjectRef")] JsValue * @object, [NativeTypeName("JSStringRef")] JsString *propertyName,
[NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsTypedArrayType JsValueGetTypedArrayType([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSValueRef")] JsValue *value, [NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern JsValue *JsObjectGetPropertyForKey([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSObjectRef")] JsValue * @object, [NativeTypeName("JSValueRef")] JsValue *propertyKey,
[NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern OneByteBoolean JsValueIsInstanceOfConstructor([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSValueRef")] JsValue *value, [NativeTypeName("JSObjectRef")] JsValue *constructor,
[NativeTypeName("JSValueRef *")] JsValue **exception);
public static extern void JsObjectSetPropertyForKey([NativeTypeName("JSContextRef")] JsContext *ctx, [NativeTypeName("JSObjectRef")] JsValue * @object, [NativeTypeName("JSValueRef")] JsValue *propertyKey,
[NativeTypeName("JSValueRef")] JsValue *value, [NativeTypeName("JSPropertyAttributes")]
JsPropertyAttribute attributes, [NativeTypeName("JSValueRef *")] JsValue **exception);
