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Improve exception for parameterless commands.

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This commit is contained in:
RogueException
2016-08-16 01:44:50 -03:00
parent 2b8253ce54
commit 9bef81e600
1 changed files with 5 additions and 10 deletions
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15
src/Discord.Net.Commands/Command.cs
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@@ -96,20 +96,15 @@ namespace Discord.Commands
private IReadOnlyList<CommandParameter> BuildParameters(MethodInfo methodInfo)
{
var parameters = methodInfo.GetParameters();
if (parameters.Length == 0 || parameters[0].ParameterType != typeof(IMessage))
throw new InvalidOperationException("The first parameter of a command must be IMessage.");
var paramBuilder = ImmutableArray.CreateBuilder<CommandParameter>(parameters.Length - 1);
for (int i = 0; i < parameters.Length; i++)
for (int i = 1; i < parameters.Length; i++)
{
var parameter = parameters[i];
var type = parameter.ParameterType;
if (i == 0)
{
if (type != typeof(IMessage))
throw new InvalidOperationException("The first parameter of a command must be IMessage.");
else
continue;
}
//Detect 'params'
bool isMultiple = parameter.GetCustomAttribute<ParamArrayAttribute>() != null;
if (isMultiple)