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using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Threading;
using Microsoft.Xna.Framework.Graphics;
using StardewModdingAPI.Framework.Events;
using StardewModdingAPI.Framework.Reflection;
using StardewValley;
using StardewValley.Menus;
namespace StardewModdingAPI.Framework
{
/// <summary>Provides extension methods for SMAPI's internal use.</summary>
internal static class InternalExtensions
{
/****
** IMonitor
****/
/// <summary>Log a message for the player or developer the first time it occurs.</summary>
/// <param name="monitor">The monitor through which to log the message.</param>
/// <param name="hash">The hash of logged messages.</param>
/// <param name="message">The message to log.</param>
/// <param name="level">The log severity level.</param>
public static void LogOnce(this IMonitor monitor, HashSet<string> hash, string message, LogLevel level = LogLevel.Trace)
{
if (!hash.Contains(message))
{
monitor.Log(message, level);
hash.Add(message);
}
}
/****
** IModMetadata
****/
/// <summary>Log a message using the mod's monitor.</summary>
/// <param name="metadata">The mod whose monitor to use.</param>
/// <param name="message">The message to log.</param>
/// <param name="level">The log severity level.</param>
public static void LogAsMod(this IModMetadata metadata, string message, LogLevel level = LogLevel.Trace)
{
metadata.Monitor.Log(message, level);
}
/****
** ManagedEvent
****/
/// <summary>Raise the event using the default event args and notify all handlers.</summary>
/// <typeparam name="TEventArgs">The event args type to construct.</typeparam>
/// <param name="event">The event to raise.</param>
public static void RaiseEmpty<TEventArgs>(this ManagedEvent<TEventArgs> @event) where TEventArgs : new()
{
@event.Raise(Singleton<TEventArgs>.Instance);
}
/****
** Exceptions
****/
/// <summary>Get a string representation of an exception suitable for writing to the error log.</summary>
/// <param name="exception">The error to summarize.</param>
public static string GetLogSummary(this Exception exception)
{
switch (exception)
{
case TypeLoadException ex:
return $"Failed loading type '{ex.TypeName}': {exception}";
case ReflectionTypeLoadException ex:
string summary = exception.ToString();
foreach (Exception childEx in ex.LoaderExceptions)
summary += $"\n\n{childEx.GetLogSummary()}";
return summary;
default:
return exception.ToString();
}
}
/// <summary>Get the lowest exception in an exception stack.</summary>
/// <param name="exception">The exception from which to search.</param>
public static Exception GetInnermostException(this Exception exception)
{
while (exception.InnerException != null)
exception = exception.InnerException;
return exception;
}
/****
** ReaderWriterLockSlim
****/
/// <summary>Run code within a read lock.</summary>
/// <param name="lock">The lock to set.</param>
/// <param name="action">The action to perform.</param>
public static void InReadLock(this ReaderWriterLockSlim @lock, Action action)
{
@lock.EnterReadLock();
try
{
action();
}
finally
{
@lock.ExitReadLock();
}
}
/// <summary>Run code within a read lock.</summary>
/// <typeparam name="TReturn">The action's return value.</typeparam>
/// <param name="lock">The lock to set.</param>
/// <param name="action">The action to perform.</param>
public static TReturn InReadLock<TReturn>(this ReaderWriterLockSlim @lock, Func<TReturn> action)
{
@lock.EnterReadLock();
try
{
return action();
}
finally
{
@lock.ExitReadLock();
}
}
/// <summary>Run code within a write lock.</summary>
/// <param name="lock">The lock to set.</param>
/// <param name="action">The action to perform.</param>
public static void InWriteLock(this ReaderWriterLockSlim @lock, Action action)
{
@lock.EnterWriteLock();
try
{
action();
}
finally
{
@lock.ExitWriteLock();
}
}
/// <summary>Run code within a write lock.</summary>
/// <typeparam name="TReturn">The action's return value.</typeparam>
/// <param name="lock">The lock to set.</param>
/// <param name="action">The action to perform.</param>
public static TReturn InWriteLock<TReturn>(this ReaderWriterLockSlim @lock, Func<TReturn> action)
{
@lock.EnterWriteLock();
try
{
return action();
}
finally
{
@lock.ExitWriteLock();
}
}
/****
** IActiveClickableMenu
****/
/// <summary>Get a string representation of the menu chain to the given menu (including the specified menu), in parent to child order.</summary>
/// <param name="menu">The menu whose chain to get.</param>
public static string GetMenuChainLabel(this IClickableMenu menu)
{
static IEnumerable<IClickableMenu> GetAncestors(IClickableMenu menu)
{
for (; menu != null; menu = menu.GetParentMenu())
yield return menu;
}
return string.Join(" > ", GetAncestors(menu).Reverse().Select(p => p.GetType().FullName));
}
/****
** Sprite batch
****/
/// <summary>Get whether the sprite batch is between a begin and end pair.</summary>
/// <param name="spriteBatch">The sprite batch to check.</param>
/// <param name="reflection">The reflection helper with which to access private fields.</param>
public static bool IsOpen(this SpriteBatch spriteBatch, Reflector reflection)
{
string fieldName = Constants.GameFramework == GameFramework.Xna
? "inBeginEndPair"
: "_beginCalled";
return reflection.GetField<bool>(Game1.spriteBatch, fieldName).GetValue();
}
}
}
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