/// <summary>
/// Calls a script through the scripting system on an object, returning a typed result
/// </summary>
public static T CallOnForResult <T>(string script, object instance, ScriptExecutionContext context, params object[] args)
{
return(TypeUtils.CoerceValue <T>(Instance.CallScript(script, instance, context, args)));
}
/// <summary>
/// Calls a script through the scripting system on an object
/// </summary>
public static void CallOn(string script, object instance, ScriptExecutionContext context, params object[] args)
{
Instance.CallScript(script, instance, context, args);
}
/// <summary>
/// Calls a script through the scripting system on an object, returning a result
/// </summary>
public static object CallOnForResult(string script, object instance, ScriptExecutionContext context, params object[] args)
{
return(Instance.CallScript(script, instance, context, args));
}
private static object CallScriptMethod(MethodInfo scriptMethod, object instance, ScriptExecutionContext context, object[] args)
{
//get script attribute
CCScriptAttribute scriptAttribute = null;
var scriptAttributes = scriptMethod.GetCustomAttributes(typeof(CCScriptAttribute), false);
if (scriptAttributes != null && scriptAttributes.Length > 0)
{
scriptAttribute = (CCScriptAttribute)scriptAttributes[0];
}
//attempt to resolve instance
if (!scriptMethod.IsStatic && instance == null)
{
if (scriptAttribute != null && scriptAttribute.AutoResolveInstance)
{
var property = scriptMethod.DeclaringType.GetProperty("Instance", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static);
if (property != null)
{
instance = property.GetValue(null);
}
else
{
var field = scriptMethod.DeclaringType.GetField("Instance", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static);
if (field != null)
{
instance = field.GetValue(null);
}
}
}
if (instance == null)
{
throw new NoInstanceForNonStaticMethodException();
}
}
var scriptParameters = scriptMethod.GetParameters();
//trim and coerce arguments
object[] trimmedArgs;
if (scriptParameters == null || scriptParameters.Length == 0)
{
//cheap path: pass empty array
trimmedArgs = new object[] { };
}
else if ((scriptAttribute != null && scriptAttribute.NeverPassExecutionContext) || !(scriptParameters != null && scriptParameters.Length > 0 && scriptParameters[0].ParameterType.IsAssignableFrom(typeof(ScriptExecutionContext))))
{
//do not pass ScriptExecutionContext
trimmedArgs = CoerceAndTrimArguments(args, scriptParameters, null);
//display warning if we had to trim
if (scriptParameters.Length != args.Length)
{
Debug.LogWarning($"[{nameof(ScriptingModule)}] Argument coercion warning: {GetCallableName(scriptMethod)} expected {scriptParameters.Length} arguments but was passed {args.Length}");
}
}
else
{
//pass all args including ScriptExecutionContext
if (scriptParameters.Length == 1)
{
trimmedArgs = new object[] { context };
}
else
{
trimmedArgs = CoerceAndTrimArguments(args, scriptParameters, context);
}
//display warning if we had to trim
if (scriptParameters.Length != args.Length + 1)
{
Debug.LogWarning($"[{nameof(ScriptingModule)}] Argument coercion warning: {GetCallableName(scriptMethod)} expected 1+{scriptParameters.Length-1} arguments but was passed 1+{args.Length}");
}
}
return(scriptMethod.Invoke(instance, trimmedArgs));
}
