public CallMethodAction(ParseInfo parseInfo, Scope scope, DeltinScriptParser.MethodContext methodContext, bool usedAsExpression, Scope getter)
{
this.parseInfo = parseInfo;
string methodName = methodContext.PART().GetText();
NameRange = DocRange.GetRange(methodContext.PART());
UsedAsExpression = usedAsExpression;
if (methodContext.ASYNC() != null)
{
if (methodContext.NOT() == null)
{
Parallel = CallParallel.AlreadyRunning_RestartRule;
}
else
{
Parallel = CallParallel.AlreadyRunning_DoNothing;
}
}
var options = scope.GetMethodsByName(methodName);
if (options.Length == 0)
{
parseInfo.Script.Diagnostics.Error($"No method by the name of '{methodName}' exists in the current context.", NameRange);
}
else
{
OverloadChooser = new OverloadChooser(options, parseInfo, scope, getter, NameRange, DocRange.GetRange(methodContext), new OverloadError("method '" + methodName + "'"));
OverloadChooser.Apply(methodContext.call_parameters());
CallingMethod = (IMethod)OverloadChooser.Overload;
ParameterValues = OverloadChooser.Values;
if (CallingMethod != null)
{
CallingMethod.Call(parseInfo, NameRange);
// Todo: move this to DefinedFunction.Call.
if (CallingMethod is DefinedFunction definedFunction)
{
definedFunction.OnBlockApply(this);
parseInfo.CurrentCallInfo?.Call(definedFunction, NameRange);
}
if (Parallel != CallParallel.NoParallel && !CallingMethod.Attributes.Parallelable)
{
parseInfo.Script.Diagnostics.Error($"The method '{CallingMethod.Name}' cannot be called in parallel.", NameRange);
}
parseInfo.Script.AddHover(DocRange.GetRange(methodContext), CallingMethod.GetLabel(true));
}
}
}
public CallMethodAction(ParseInfo parseInfo, Scope scope, DeltinScriptParser.MethodContext methodContext, bool usedAsExpression, Scope getter)
{
this.parseInfo = parseInfo;
string methodName = methodContext.PART().GetText();
NameRange = DocRange.GetRange(methodContext.PART());
UsedAsExpression = usedAsExpression;
if (methodContext.ASYNC() != null)
{
if (methodContext.NOT() == null)
{
Parallel = CallParallel.AlreadyRunning_RestartRule;
}
else
{
Parallel = CallParallel.AlreadyRunning_DoNothing;
}
}
// Get all functions with the same name in the current scope.
var options = scope.GetMethodsByName(methodName);
// If none are found, throw a syntax error.
if (options.Length == 0)
{
parseInfo.Script.Diagnostics.Error($"No method by the name of '{methodName}' exists in the current context.", NameRange);
}
else
{
// Make an OverloadChooser to choose an Overload.
OverloadChooser = new OverloadChooser(options, parseInfo, scope, getter, NameRange, DocRange.GetRange(methodContext), new OverloadError("method '" + methodName + "'"));
// Apply the parameters.
OverloadChooser.Apply(methodContext.call_parameters());
// Get the best function.
CallingMethod = (IMethod)OverloadChooser.Overload;
ParameterValues = OverloadChooser.Values;
// CallingMethod may be null if no good functions are found.
if (CallingMethod != null)
{
CallingMethod.Call(parseInfo, NameRange);
// If the function's block needs to be applied, check optional restricted calls when 'Applied()' runs.
if (CallingMethod is IApplyBlock applyBlock)
{
applyBlock.OnBlockApply(this);
}
else // Otherwise, the optional restricted calls can be resolved right away.
{
// Get optional parameter's restricted calls.
OverloadChooser.Match?.CheckOptionalsRestrictedCalls(parseInfo, NameRange);
}
// Check if the function can be called in parallel.
if (Parallel != CallParallel.NoParallel && !CallingMethod.Attributes.Parallelable)
{
parseInfo.Script.Diagnostics.Error($"The method '{CallingMethod.Name}' cannot be called in parallel.", NameRange);
}
parseInfo.Script.AddHover(DocRange.GetRange(methodContext), CallingMethod.GetLabel(true));
}
}
}
/// <summary>
/// Dispatch the http context to the router.
/// </summary>
/// <param name="context">The context to be dispatched.</param>
public void DispatchCall(HttpListenerContext context)
{
var handlerExist = false;
var httpMethod = context.Request.HttpMethod.ToLower();
Logger.Write($"Handle request [{httpMethod}]: {context.Request.Url}");
try
{
var urlInfo = WebApiUrlInfoParser.Parser(_applicationName, context.Request.Url);
if (urlInfo != null)
{
var key = $"{urlInfo.Version}/{urlInfo.HandlerName}";
if (_handlers.ContainsKey(key))
{
var matcher = _matchers[httpMethod];
CallingMethod callingMethod = null;
if (!string.IsNullOrEmpty(urlInfo.ActionName))
{
callingMethod = _handlers[key].GetCallingMethod(urlInfo.ActionName);
if (callingMethod != null)
{
if (!matcher.IsMatch(context, callingMethod))
{
callingMethod = null;
}
}
}
else
{
var callingMethods = _handlers[key].GetCallingMethods();
foreach (var method in callingMethods)
{
if (matcher.IsMatch(context, method))
{
callingMethod = method;
break;
}
}
}
if (callingMethod != null)
{
if (_parsers.ContainsKey(httpMethod))
{
var parser = _parsers[httpMethod];
var args = parser.Parse(context, callingMethod.Parameters.ToArray());
//The parser will add context into the args, so the final count is parameter count + 1.
if (args != null && args.Length == callingMethod.Parameters.Count + 1)
{
handlerExist = true;
try
{
callingMethod.Call(args);
}
catch (Exception ex)
{
var argStr = new StringBuilder();
foreach (var arg in args)
{
argStr.AppendLine($"{arg.Name} = {arg.Value}");
}
Logger.Write(
$"Call method {callingMethod.Name} with args:{Environment.NewLine + argStr + Environment.NewLine} error :{ex}");
context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
context.Response.Close();
}
}
}
}
}
}
}
catch (Exception ex)
{
Logger.Write($"Handle request error: {ex}");
}
if (!handlerExist)
{
Logger.Write($"Handler for request: {context.Request.Url} not found.");
context.Response.StatusCode = (int)HttpStatusCode.NotFound;
context.Response.Close();
}
}