private static (string Key, MethodInfo Method, object Instance, object[] Arguments) ParseExpression([NotNull] LambdaExpression expression)
{
if (expression.Body is not MethodCallExpression methodCall)
{
throw new ArgumentNotMethodExpressionException(nameof(expression));
}
MethodInfo method = methodCall.Method;
object instance = methodCall.Object != null?GetValue(methodCall.Object) : null;
object[] arguments = new object[methodCall.Arguments.Count];
KeyBuilder keyBuilder = new KeyBuilder();
keyBuilder.By(method.DeclaringType).By(method.MetadataToken).By(method.GetGenericArguments()).By(instance);
for (int i = 0; i < methodCall.Arguments.Count; ++i)
{
keyBuilder.By(arguments[i] = GetValue(methodCall.Arguments[i]));
}
string cacheKey = keyBuilder.ToString();
return(cacheKey, method, instance, arguments);
}
public override bool Equals(object obj)
{
if (obj is Attribute attr)
{
return(KeyBuilder.ToString().Equals(attr.KeyBuilder.ToString()) &&
ValueBuilder.ToString().Equals(attr.ValueBuilder.ToString()));
}
return(false);
}
public KeyValueNode BuildNode()
{
var toReturn = new KeyValueNode();
toReturn.Key = KeyBuilder.ToString();
if (ValueBuilder.Length > 0)
{
toReturn.Value = ValueBuilder.ToString();
}
else
{
toReturn.Children = new Dictionary <string, List <KeyValueNode> >();
}
return(toReturn);
}
public string GetKey(MethodInfo method, params object[] args)
{
var sb = new StringBuilder();
var builder = new KeyBuilder(sb);
BuildKey(builder);
builder.Append(method.DeclaringType.FullName);
builder.Append(method.Name);
foreach (var a in args)
{
builder.Append(a);
}
return(builder.ToString());
}
