TreeComparer<TNode>.GetDistance(TNode, TNode) Method

Definition

Namespace:

Microsoft.CodeAnalysis.Differencing

Assembly:

Microsoft.CodeAnalysis.Workspaces.dll

Package:

Microsoft.CodeAnalysis.Workspaces.Common v4.7.0

Source:

TreeComparer.cs

Calculates the distance [0..1] of two nodes.

public:
 abstract double GetDistance(TNode oldNode, TNode newNode);

public abstract double GetDistance (TNode oldNode, TNode newNode);

abstract member GetDistance : 'Node * 'Node -> double

Public MustOverride Function GetDistance (oldNode As TNode, newNode As TNode) As Double

Parameters

oldNode

TNode

newNode

TNode

Returns

Double

Remarks

The more similar the nodes the smaller the distance.

Used to determine whether two nodes of the same label match. Even if 0 is returned the nodes might be slightly different.