ExpressionComparer

Expression Visitor that compares two expressions structurally for equality.

public class ExpressionComparer
{
  public static bool AreEqual(Expression a, Expression b, 
	ScopedDictionary<ParameterExpression, ParameterExpression> parameterScope = null, 
	bool checkParameterNames = false)

    public static IEqualityComparer<E> GetComparer<E>(bool checkParameterNames) where E : Expression
}

When comparing two expressions, the ExpressionPerameters found are tricks:

• Should the expression a => a + 2 be equal to b => b + 2? checkParameterNames regulates this behaviour.

• Should the expression a + 2 be equal to a + 2 if a is not declared anywhere? parameterScope let's you inform about this contextual parameters, if any.