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package bjc.dicelang.scl;
import java.util.Arrays;
/**
* Repository for error messages.
*
*
* @author EVE
*/
/*
* @TODO 10/08/17 Ben Culkin :ErrorRefactor
*
* This way of handling error messages is not easy to deal with. Something else
* needs to be done, but I'm not sure what at the moment.
*
* ADDENDA: 5/28/18 Ben Culkin
* The error messages were moved into ErrorKey, as well as checking how
* many arguments they expect. This is better than it was, but still mildly
* annoying.
*
*/
public class Errors {
/**
* The types of error/warning message.
*
* Error messages are marked by starting with EK, warnings start with WK
*
* @author EVE
*
*/
public static enum ErrorKey {
/* Stream Errors */
/**
* Attempted to switch to a non-existant stream
*/
EK_STRM_NONEX("\tERROR: Fell off the stream list, attempting to move %s", 1),
/**
* Can't delete the last stream
*/
EK_STRM_LAST("\tERROR: Cannot delete last remaining stream", 0),
/**
* Unknown stream command
*/
EK_STRM_INVCOM("\tERROR: Unknown stream control command %s\n", 1),
/* SCL Warnings */
/**
* Word execution failed.
*/
WK_SCL_WRDFAIL("\tWARNING: Execution of word %s failed\n", 1),
/* SCL Errors */
/**
* Unknown SCL token
*/
EK_SCL_INVTOKEN("\tERROR: Unknown SCL token %s\n", 1),
/**
* Mismatched quote in SCL command
*/
EK_SCL_MMQUOTE("\tERROR: Mismatched delimiter %s in SCL command\n", 1),
/**
* Stack underflow in SCL command
*/
EK_SCL_SUNDERFLOW("\tERROR: Not enough items in stack for word %s (need at least %d)\n", 2),
/**
* Unknown word in SCL command
*/
EK_SCL_UNWORD("\tERROR: Unknown word %s\n", 1),
/**
* Invalid argument to SCL command
*/
EK_SCL_INVARG("\tERROR: Invalid argument to SCL command\n", 0);
/**
* The message of the error.
*/
public final String msg;
/**
* The number of arguments to the error.
*/
public final int argc;
private ErrorKey(String message, int argcount) {
msg = message;
argc = argcount;
}
}
/**
* The mode for the type of error messages to print out.
*
* @author EVE
*
*/
public static enum ErrorMode {
/**
* Output error messages for wizards.
*/
WIZARD,
/**
* Output error messages for developers.
*/
DEV
}
private ErrorMode mode;
/**
* Print an error.
*
* @param key
* The key of the error.
*
* @param args
* The arguments for the error.
*/
public void printError(final ErrorKey key, final Object... args) {
switch(mode) {
case WIZARD:
System.out.printf("\t? %d %s\n", key.ordinal(), Arrays.deepToString(args));
break;
case DEV:
devError(key, args);
break;
default:
System.out.printf("\tERROR ERROR: Unknown error mode %s\n", mode);
}
}
private static void devError(final ErrorKey key, final Object[] args) {
if(args.length != key.argc) {
System.out.printf("\tERROR ERROR: Incorrect # of format arguments (got %d, expected %d)\n", args.length, key.argc);
return;
}
System.out.printf(key.msg, args);
}
/**
* The instance of the errors.
*/
public final static Errors inst;
static {
inst = new Errors();
inst.mode = ErrorMode.DEV;
}
}
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