public static bool TryExecuteStringMethod(this JsonElement e, string methodName, List <JsonElement> arguments, out JsonElement result)
{
try
{
result = e.ExecuteStringMethod(methodName, arguments);
return(true);
}
catch
{
result = JsonElementFactory.CreateNull();
return(false);
}
}
private static JsonElement?GetPropertyValue(JsonElement element, string propertyName)
{
if (propertyName == "length")
{
if (element.ValueKind == JsonValueKind.String)
{
return(JsonElementFactory.CreateNumber(element.GetString().Length));
}
if (element.ValueKind == JsonValueKind.Array)
{
return(JsonElementFactory.CreateNumber(element.GetArrayLength()));
}
}
if (element.ValueKind == JsonValueKind.Object && element.TryGetProperty(propertyName, out JsonElement result))
{
return(result);
}
return(null);
}
public static JsonElement ExecuteArrayMethod(this JsonElement e, string methodName, List <JsonElement> arguments)
{
if (e.ValueKind != JsonValueKind.Array)
{
throw new ArgumentException($"ExecuteArrayMethod expected JsonElement of JsonValueKind.Array but got JsonValueKind.{e.ValueKind}");
}
if (methodName != "contains")
{
throw new JsonPatwayMethodNotSupportedException($"Method {methodName} does not exist on array");
}
if (arguments.Count != 1)
{
throw new JsonPatwayMethodNotSupportedException("Method contains on array accepts one and only one argument");
}
bool result = e.EnumerateArray().Contains(arguments[0], JsonElementEqualityComparer.Default);
return(JsonElementFactory.CreateBool(result));
}
private static bool ExecuteStringMethodToUpperOrToLowerIfMatched(JsonElement e, string methodName, List <JsonElement> arguments, out JsonElement result)
{
bool isUpper = methodName == "toUpper" || methodName == "toUpperCase";
bool isLower = methodName == "toLower" || methodName == "toLowerCase";
if (isUpper || isLower)
{
if (arguments.Count > 0)
{
throw new JsonPatwayMethodNotSupportedException($"Method string.{methodName} expected 0 arguments but got: {arguments.Count}");
}
string ret = e.GetString();
ret = isUpper ? ret.ToUpper() : ret.ToLower();
result = JsonElementFactory.CreateString(ret);
return(true);
}
result = JsonElementFactory.CreateNull();
return(false);
}
private static bool ExecuteStringStartsWithEndsWithOrContainsIfMatched(JsonElement e, string methodName, List <JsonElement> arguments, out JsonElement result)
{
if (methodName == "startsWith" || methodName == "endsWith" || methodName == "contains")
{
EnsureStartsWithEndsWithOrContainsArgumentsAreValid(methodName, arguments);
string executedOn = e.GetString();
string argument = arguments[0].GetString();
if (arguments.Count == 2 && arguments[1].IsTruthy())
{
executedOn = executedOn.ToLower();
argument = argument.ToLower();
}
bool resultBool;
if (methodName == "startsWith")
{
resultBool = executedOn.StartsWith(argument);
}
else if (methodName == "endsWith")
{
resultBool = executedOn.EndsWith(argument);
}
else
{
resultBool = executedOn.Contains(argument);
}
result = JsonElementFactory.CreateBool(resultBool);
return(true);
}
result = JsonElementFactory.CreateNull();
return(false);
}