private static void addStackTrace(Error err) {
EventProxy.addDetailLineBreak();
EventProxy.errorDetails.append("Stacktrace:").append('\n');
EventProxy.addDetailLineBreak();
StackTraceElement[] stackTrace = err.getStackTrace();
for (int i = 0; i < stackTrace.length; i++) {
EventProxy.addCrashDetailLine(String.format(" %3d) %s", i + 1, stackTrace[i]));
}
}
protected static String generateHandlerTemplate(
String methodName, String signature, String sourceClass) {
Type[] argTypes = Type.getArgumentTypes(signature);
StringBuilder tpl = new StringBuilder();
tpl.append(" public static void ").append(methodName).append('(');
for (int var = 0; var < argTypes.length; var++) {
if (EventProxy.appendTypeName(tpl, argTypes[var], sourceClass)) tpl.append("[]");
if (var == 0) tpl.append(" e");
if (var > 0) tpl.append(" arg").append(String.valueOf(var));
if (var < argTypes.length - 1) tpl.append(", ");
}
tpl.append(")\n\t {\n\t // handler code here\n\t }");
return tpl.toString();
}
private static boolean appendTypeName(StringBuilder tpl, Type type, String sourceClass) {
switch (type.getSort()) {
case Type.BOOLEAN:
tpl.append("boolean");
return false;
case Type.CHAR:
tpl.append("char");
return false;
case Type.BYTE:
tpl.append("byte");
return false;
case Type.SHORT:
tpl.append("short");
return false;
case Type.INT:
tpl.append("int");
return false;
case Type.FLOAT:
tpl.append("float");
return false;
case Type.LONG:
tpl.append("long");
return false;
case Type.DOUBLE:
tpl.append("double");
return false;
case Type.ARRAY:
EventProxy.appendTypeName(tpl, type.getElementType(), sourceClass);
return true;
case Type.OBJECT:
String typeName = type.getClassName();
typeName = typeName.substring(typeName.lastIndexOf('.') + 1);
tpl.append(typeName);
if (typeName.endsWith("ReturnEventInfo"))
tpl.append('<').append(sourceClass).append(", ?>");
else if (typeName.endsWith("EventInfo")) tpl.append('<').append(sourceClass).append('>');
return false;
}
tpl.append("Object");
return false;
}
protected static void onMissingHandler(Error err, EventInfo<?> e) {
String descriptor = err.getMessage();
int dotPos = descriptor.lastIndexOf('.');
int bracketPos = descriptor.indexOf('(');
String signature = descriptor.substring(bracketPos);
String sourceClass = e.getSource() != null ? e.getSource().getClass().getSimpleName() : "?";
EventProxy.error = "Missing Event Handler Method!";
EventProxy.errorDetails = new StringBuilder();
EventProxy.addCrashDetailLine("\n");
EventProxy.addCrashDetailLine(
"You are seeing this message because an event callback was injected by the Event");
EventProxy.addCrashDetailLine(
"Injection Subsystem but the specified callback method was not defined. The");
EventProxy.addCrashDetailLine("details of the missing callback are as follows:");
EventProxy.addDetailLineBreak();
EventProxy.addCrashDetailLine(" Event Name: " + e.getName());
EventProxy.addCrashDetailLine(" Cancellable: " + e.isCancellable());
EventProxy.addDetailLineBreak();
EventProxy.addCrashDetailLine(" Callback class: " + descriptor.substring(0, dotPos));
EventProxy.addCrashDetailLine(
" Callback method: " + descriptor.substring(dotPos + 1, bracketPos));
EventProxy.addDetailLineBreak();
EventProxy.addCrashDetailLine(
"If you are the mod author then in order to fix the error you must add a suitable");
EventProxy.addCrashDetailLine(
"callback method in the above class. The method signature should be as follows:");
EventProxy.addDetailLineBreak();
EventProxy.addCrashDetailLine(
EventProxy.generateHandlerTemplate(
descriptor.substring(dotPos + 1, bracketPos), signature, sourceClass));
EventProxy.addDetailLineBreak();
EventProxy.addCrashDetailLine(
"This is an unrecoverable error, please report it to the mod author and remove");
EventProxy.addCrashDetailLine("the offending mod.");
EventProxy.addStackTrace(err);
throw new RuntimeErrorException(
err,
"Missing event handler method for event " + e.getName() + ", see crash report for details");
}
protected static void onMissingClass(Error err, EventInfo<?> e) {
EventProxy.error = "Missing Event Handler Class!";
EventProxy.errorDetails = new StringBuilder();
EventProxy.addCrashDetailLine("\n");
EventProxy.addCrashDetailLine(
"You are seeing this message because an event callback was injected by the Event");
EventProxy.addCrashDetailLine(
"Injection Subsystem but the specified callback class was not defined! The");
EventProxy.addCrashDetailLine("details of the missing callback are as follows:");
EventProxy.addDetailLineBreak();
EventProxy.addCrashDetailLine(" Event Name: " + e.getName());
EventProxy.addCrashDetailLine(" Cancellable: " + e.isCancellable());
EventProxy.addDetailLineBreak();
EventProxy.addCrashDetailLine(" Callback class: " + err.getMessage().replace('/', '.'));
EventProxy.addDetailLineBreak();
EventProxy.addCrashDetailLine(
"If you are the mod author then in order to fix the error you must provide an");
EventProxy.addCrashDetailLine(
"implementation for the specified class, or check that the class name and package");
EventProxy.addCrashDetailLine("are correct.");
EventProxy.addDetailLineBreak();
EventProxy.addCrashDetailLine(
"This is an unrecoverable error, please report it to the mod author and remove");
EventProxy.addCrashDetailLine("the offending mod.");
EventProxy.addStackTrace(err);
throw new RuntimeErrorException(
err,
"Missing event handler class for event " + e.getName() + ", see crash report for details");
}
