91230ae177
Summary: Moves the `YGLogger` into `YGConfig` and pass the `YGNodeRef` into the logger to be able to associate the log messages and assertions with the specific node. Tackles facebook/yoga#530 and facebook/yoga#446 Closes https://github.com/facebook/yoga/pull/531 Reviewed By: astreet Differential Revision: D4970149 Pulled By: emilsjolander fbshipit-source-id: b7fcdaa273143ea2fa35861620b2e4d79f04f0af
81 lines
2.2 KiB
C#
81 lines
2.2 KiB
C#
/**
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* Copyright (c) 2014-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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using System;
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using System.Runtime.InteropServices;
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namespace Facebook.Yoga
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{
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internal class YGNodeHandle : SafeHandle
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{
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private GCHandle _managedNodeHandle;
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private YGNodeHandle() : base(IntPtr.Zero, true)
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{
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}
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public override bool IsInvalid
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{
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get
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{
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return this.handle == IntPtr.Zero;
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}
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}
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protected override bool ReleaseHandle()
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{
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ReleaseManaged();
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if (!IsInvalid)
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{
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Native.YGNodeFree(this.handle);
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GC.KeepAlive(this);
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}
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return true;
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}
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public void SetContext(YogaNode node)
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{
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if (!_managedNodeHandle.IsAllocated)
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{
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#if UNITY_5_4_OR_NEWER
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// Weak causes 'GCHandle value belongs to a different domain' error
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_managedNodeHandle = GCHandle.Alloc(node);
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#else
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_managedNodeHandle = GCHandle.Alloc(node, GCHandleType.Weak);
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#endif
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var managedNodePtr = GCHandle.ToIntPtr(_managedNodeHandle);
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Native.YGNodeSetContext(this.handle, managedNodePtr);
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}
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}
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public void ReleaseManaged()
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{
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if (_managedNodeHandle.IsAllocated)
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{
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_managedNodeHandle.Free();
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}
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}
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public static YogaNode GetManaged(IntPtr unmanagedNodePtr)
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{
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if (unmanagedNodePtr != IntPtr.Zero)
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{
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var managedNodePtr = Native.YGNodeGetContext(unmanagedNodePtr);
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var node = GCHandle.FromIntPtr(managedNodePtr).Target as YogaNode;
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if (node == null)
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{
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throw new InvalidOperationException("YogaNode is already deallocated");
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}
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return node;
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}
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return null;
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}
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}
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}
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