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V8ObjectImpl.cs
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
using System;
using Microsoft.ClearScript.JavaScript;
namespace Microsoft.ClearScript.V8.SplitProxy
{
internal sealed class V8ObjectImpl : IV8Object
{
private V8EntityHolder holder;
public V8Object.Handle Handle => (V8Object.Handle)holder.Handle;
public V8ObjectImpl(V8Object.Handle hObject, V8Value.Subtype subtype, V8Value.Flags flags, int identityHash)
{
holder = new V8EntityHolder("V8 object", () => hObject);
Subtype = subtype;
Flags = flags;
IdentityHash = identityHash;
}
public V8Value.Subtype Subtype { get; }
public V8Value.Flags Flags { get; }
#region IV8Object implementation
public JavaScriptObjectKind ObjectKind
{
get
{
switch (Subtype)
{
case V8Value.Subtype.Function:
return JavaScriptObjectKind.Function;
case V8Value.Subtype.Iterator:
return JavaScriptObjectKind.Iterator;
case V8Value.Subtype.Promise:
return JavaScriptObjectKind.Promise;
case V8Value.Subtype.Array:
return JavaScriptObjectKind.Array;
case V8Value.Subtype.ArrayBuffer:
return JavaScriptObjectKind.ArrayBuffer;
case V8Value.Subtype.DataView:
return JavaScriptObjectKind.DataView;
case V8Value.Subtype.Uint8Array:
case V8Value.Subtype.Uint8ClampedArray:
case V8Value.Subtype.Int8Array:
case V8Value.Subtype.Uint16Array:
case V8Value.Subtype.Int16Array:
case V8Value.Subtype.Uint32Array:
case V8Value.Subtype.Int32Array:
case V8Value.Subtype.BigUint64Array:
case V8Value.Subtype.BigInt64Array:
case V8Value.Subtype.Float32Array:
case V8Value.Subtype.Float64Array:
return JavaScriptObjectKind.TypedArray;
default:
return JavaScriptObjectKind.Unknown;
}
}
}
public JavaScriptObjectFlags ObjectFlags
{
get
{
var flags = JavaScriptObjectFlags.None;
if (Flags.HasFlag(V8Value.Flags.Shared))
{
flags |= JavaScriptObjectFlags.Shared;
}
if (Flags.HasFlag(V8Value.Flags.Async))
{
flags |= JavaScriptObjectFlags.Async;
}
if (Flags.HasFlag(V8Value.Flags.Generator))
{
flags |= JavaScriptObjectFlags.Generator;
}
return flags;
}
}
public int IdentityHash { get; }
public object GetProperty(string name)
{
return V8SplitProxyNative.Invoke(instance => instance.V8Object_GetNamedProperty(Handle, name));
}
public bool TryGetProperty(string name, out object value)
{
object tempValue = null;
var result = V8SplitProxyNative.Invoke(instance => instance.V8Object_TryGetNamedProperty(Handle, name, out tempValue));
value = tempValue;
return result;
}
public void SetProperty(string name, object value)
{
V8SplitProxyNative.Invoke(instance => instance.V8Object_SetNamedProperty(Handle, name, value));
}
public bool DeleteProperty(string name)
{
return V8SplitProxyNative.Invoke(instance => instance.V8Object_DeleteNamedProperty(Handle, name));
}
public string[] GetPropertyNames(bool includeIndices)
{
return V8SplitProxyNative.Invoke(instance => instance.V8Object_GetPropertyNames(Handle, includeIndices));
}
public object GetProperty(int index)
{
return V8SplitProxyNative.Invoke(instance => instance.V8Object_GetIndexedProperty(Handle, index));
}
public void SetProperty(int index, object value)
{
V8SplitProxyNative.Invoke(instance => instance.V8Object_SetIndexedProperty(Handle, index, value));
}
public bool DeleteProperty(int index)
{
return V8SplitProxyNative.Invoke(instance => instance.V8Object_DeleteIndexedProperty(Handle, index));
}
public int[] GetPropertyIndices()
{
return V8SplitProxyNative.Invoke(instance => instance.V8Object_GetPropertyIndices(Handle));
}
public object Invoke(bool asConstructor, object[] args)
{
return V8SplitProxyNative.Invoke(instance => instance.V8Object_Invoke(Handle, asConstructor, args));
}
public object InvokeMethod(string name, object[] args)
{
return V8SplitProxyNative.Invoke(instance => instance.V8Object_InvokeMethod(Handle, name, args));
}
public bool IsPromise => Subtype == V8Value.Subtype.Promise;
public bool IsArray => Subtype == V8Value.Subtype.Array;
public bool IsShared => Flags.HasFlag(V8Value.Flags.Shared);
public bool IsArrayBufferOrView
{
get
{
switch (Subtype)
{
case V8Value.Subtype.ArrayBuffer:
case V8Value.Subtype.DataView:
case V8Value.Subtype.Uint8Array:
case V8Value.Subtype.Uint8ClampedArray:
case V8Value.Subtype.Int8Array:
case V8Value.Subtype.Uint16Array:
case V8Value.Subtype.Int16Array:
case V8Value.Subtype.Uint32Array:
case V8Value.Subtype.Int32Array:
case V8Value.Subtype.BigUint64Array:
case V8Value.Subtype.BigInt64Array:
case V8Value.Subtype.Float32Array:
case V8Value.Subtype.Float64Array:
return true;
default:
return false;
}
}
}
public V8ArrayBufferOrViewKind ArrayBufferOrViewKind
{
get
{
switch (Subtype)
{
case V8Value.Subtype.ArrayBuffer:
return V8ArrayBufferOrViewKind.ArrayBuffer;
case V8Value.Subtype.DataView:
return V8ArrayBufferOrViewKind.DataView;
case V8Value.Subtype.Uint8Array:
return V8ArrayBufferOrViewKind.Uint8Array;
case V8Value.Subtype.Uint8ClampedArray:
return V8ArrayBufferOrViewKind.Uint8ClampedArray;
case V8Value.Subtype.Int8Array:
return V8ArrayBufferOrViewKind.Int8Array;
case V8Value.Subtype.Uint16Array:
return V8ArrayBufferOrViewKind.Uint16Array;
case V8Value.Subtype.Int16Array:
return V8ArrayBufferOrViewKind.Int16Array;
case V8Value.Subtype.Uint32Array:
return V8ArrayBufferOrViewKind.Uint32Array;
case V8Value.Subtype.Int32Array:
return V8ArrayBufferOrViewKind.Int32Array;
case V8Value.Subtype.BigUint64Array:
return V8ArrayBufferOrViewKind.BigUint64Array;
case V8Value.Subtype.BigInt64Array:
return V8ArrayBufferOrViewKind.BigInt64Array;
case V8Value.Subtype.Float32Array:
return V8ArrayBufferOrViewKind.Float32Array;
case V8Value.Subtype.Float64Array:
return V8ArrayBufferOrViewKind.Float64Array;
default:
return V8ArrayBufferOrViewKind.None;
}
}
}
public V8ArrayBufferOrViewInfo GetArrayBufferOrViewInfo()
{
var kind = ArrayBufferOrViewKind;
if (kind != V8ArrayBufferOrViewKind.None)
{
IV8Object arrayBuffer = null;
var offset = 0UL;
var size = 0UL;
var length = 0UL;
V8SplitProxyNative.Invoke(instance => instance.V8Object_GetArrayBufferOrViewInfo(Handle, out arrayBuffer, out offset, out size, out length));
return new V8ArrayBufferOrViewInfo(kind, arrayBuffer, offset, size, length);
}
return null;
}
public void InvokeWithArrayBufferOrViewData(Action<IntPtr> action)
{
using (var actionScope = V8ProxyHelpers.CreateAddRefHostObjectScope(action))
{
var pAction = actionScope.Value;
V8SplitProxyNative.Invoke(instance => instance.V8Object_InvokeWithArrayBufferOrViewData(Handle, pAction));
}
}
#endregion
#region disposal / finalization
public void Dispose()
{
holder.ReleaseEntity();
GC.KeepAlive(this);
}
~V8ObjectImpl()
{
V8EntityHolder.Destroy(ref holder);
}
#endregion
}
}