1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
namespace StardewModdingAPI.Framework
{
/// <summary>Provides extension methods for SMAPI's internal use.</summary>
internal static class InternalExtensions
{
/*********
** Public methods
*********/
/****
** IMonitor
****/
/// <summary>Safely raise an <see cref="EventHandler"/> event, and intercept any exceptions thrown by its handlers.</summary>
/// <param name="monitor">Encapsulates monitoring and logging.</param>
/// <param name="name">The event name for error messages.</param>
/// <param name="handlers">The event handlers.</param>
/// <param name="sender">The event sender.</param>
/// <param name="args">The event arguments (or <c>null</c> to pass <see cref="EventArgs.Empty"/>).</param>
public static void SafelyRaisePlainEvent(this IMonitor monitor, string name, IEnumerable<Delegate> handlers, object sender = null, EventArgs args = null)
{
if (handlers == null)
return;
foreach (EventHandler handler in Enumerable.Cast<EventHandler>(handlers))
{
try
{
handler.Invoke(sender, args ?? EventArgs.Empty);
}
catch (Exception ex)
{
monitor.Log($"A mod failed handling the {name} event:\n{ex.GetLogSummary()}", LogLevel.Error);
}
}
}
/// <summary>Safely raise an <see cref="EventHandler{TEventArgs}"/> event, and intercept any exceptions thrown by its handlers.</summary>
/// <typeparam name="TEventArgs">The event argument object type.</typeparam>
/// <param name="monitor">Encapsulates monitoring and logging.</param>
/// <param name="name">The event name for error messages.</param>
/// <param name="handlers">The event handlers.</param>
/// <param name="sender">The event sender.</param>
/// <param name="args">The event arguments.</param>
public static void SafelyRaiseGenericEvent<TEventArgs>(this IMonitor monitor, string name, IEnumerable<Delegate> handlers, object sender, TEventArgs args)
{
if (handlers == null)
return;
foreach (EventHandler<TEventArgs> handler in Enumerable.Cast<EventHandler<TEventArgs>>(handlers))
{
try
{
handler.Invoke(sender, args);
}
catch (Exception ex)
{
monitor.Log($"A mod failed handling the {name} event:\n{ex.GetLogSummary()}", LogLevel.Error);
}
}
}
/****
** Exceptions
****/
/// <summary>Get a string representation of an exception suitable for writing to the error log.</summary>
/// <param name="exception">The error to summarise.</param>
public static string GetLogSummary(this Exception exception)
{
// type load exception
if (exception is TypeLoadException)
return $"Failed loading type: {((TypeLoadException)exception).TypeName}: {exception}";
// reflection type load exception
if (exception is ReflectionTypeLoadException)
{
string summary = exception.ToString();
foreach (Exception childEx in ((ReflectionTypeLoadException)exception).LoaderExceptions)
summary += $"\n\n{childEx.GetLogSummary()}";
return summary;
}
// anything else
return exception.ToString();
}
}
}
|
