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package bjc.dicelang.scl;
/**
* 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.
*
*
*/
public class Errors {
/**
* The types of error message.
*
* @author EVE
*
*/
public static enum ErrorKey {
/* Stream Errors */
/**
* Attempted to switch to a non-existant stream
*/
EK_STRM_NONEX,
/**
* Can't delete the last stream
*/
EK_STRM_LAST,
/**
* Unknown stream command
*/
EK_STRM_INVCOM,
/* SCL Errors */
/**
* Unknown SCL token
*/
EK_SCL_INVTOKEN,
/**
* Mismatched quote in SCL command
*/
EK_SCL_MMQUOTE,
/**
* Stack underflow in SCL command
*/
EK_SCL_SUNDERFLOW,
/**
* Unknown word in SCL command
*/
EK_SCL_UNWORD,
/**
* Invalid argument to SCL command
*/
EK_SCL_INVARG,
}
/**
* 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 String... args) {
switch(mode) {
case WIZARD:
System.out.println("\t? " + key.ordinal());
break;
case DEV:
devError(key, args);
break;
default:
System.out.println("\tERROR ERROR: Unknown error mode " + mode);
}
}
private static void devError(final ErrorKey key, final String[] args) {
switch(key) {
case EK_STRM_NONEX:
System.out.printf("\tERROR: Attempted to switch to non-existent stream\n");
break;
case EK_STRM_LAST:
System.out.printf("\tERROR: Cannot delete last stream\n");
break;
case EK_STRM_INVCOM:
System.out.printf("\tERROR: Unknown stream control command %s\n", args[0]);
break;
case EK_SCL_INVTOKEN:
System.out.printf("\tERROR: Unknown SCL token %s\n", args[0]);
break;
case EK_SCL_MMQUOTE:
System.out.printf("\tERROR: Mismatched delimiter in SCL command\n");
break;
case EK_SCL_SUNDERFLOW:
System.out.printf("\tERROR: Not enough items in stack for word %s\n", args[0]);
break;
case EK_SCL_UNWORD:
System.out.printf("\tERROR: Unknown word %s\n", args[0]);
break;
default:
System.out.printf("\tERROR ERROR: Unknown error key %s\n", key);
}
}
/**
* The instance of the errors.
*/
public final static Errors inst;
static {
inst = new Errors();
inst.mode = ErrorMode.DEV;
}
}
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