private JsonRpcMethod TryBindToMethod(ICollection <JsonRpcMethod> candidates, JObject paramsObj)
{
Debug.Assert(paramsObj != null);
JsonRpcMethod firstMatch = null;
Dictionary <string, JToken> requestProp = null;
foreach (var m in candidates)
{
if (!m.AllowExtensionData)
{
// Strict match
requestProp = paramsObj.Properties().ToDictionary(p => p.Name, p => p.Value);
}
foreach (var p in m.Parameters)
{
var jp = paramsObj[p.ParameterName];
if (jp == null || jp.Type == JTokenType.Undefined)
{
if (!p.IsOptional)
{
goto NEXT;
}
else
{
continue;
}
}
if (!p.MatchJTokenType(jp.Type))
{
goto NEXT;
}
requestProp?.Remove(p.ParameterName);
}
// Check whether we have extra parameters.
if (requestProp != null && requestProp.Count > 0)
{
goto NEXT;
}
if (firstMatch != null)
{
throw new AmbiguousMatchException();
}
firstMatch = m;
NEXT:
;
}
return(firstMatch);
}
private JsonRpcMethod TryBindToParameterlessMethod(ICollection <JsonRpcMethod> candidates)
{
JsonRpcMethod firstMatch = null;
foreach (var m in candidates)
{
if (m.Parameters.Count == 0 || m.Parameters.All(p => p.IsOptional))
{
if (firstMatch != null)
{
throw new AmbiguousMatchException();
}
firstMatch = m;
}
}
return(firstMatch);
}
private JsonRpcMethod TryBindToMethod(ICollection <JsonRpcMethod> candidates, JArray paramsArray)
{
Debug.Assert(paramsArray != null);
JsonRpcMethod firstMatch = null;
foreach (var m in candidates)
{
if (!m.AllowExtensionData && paramsArray.Count > m.Parameters.Count)
{
goto NEXT;
}
for (var i = 0; i < m.Parameters.Count; i++)
{
var param = m.Parameters[i];
var jparam = i < paramsArray.Count ? paramsArray[i] : null;
if (jparam == null || jparam.Type == JTokenType.Undefined)
{
if (!param.IsOptional)
{
goto NEXT;
}
else
{
continue;
}
}
if (!param.MatchJTokenType(jparam.Type))
{
goto NEXT;
}
}
if (firstMatch != null)
{
throw new AmbiguousMatchException();
}
firstMatch = m;
NEXT:
;
}
return(firstMatch);
}