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package com.jantuomi.interpreter.main.exception;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Created by jan on 12.6.2016.
*/
public class InterpreterException extends Exception {
public enum ExceptionType {
IllegalTokenError,
UnknownOperatorError,
SyntaxError,
TypeError
}
public static Map<ExceptionType, String> errorTexts = new HashMap<>();
static {
errorTexts.put(ExceptionType.IllegalTokenError, "Illegal token %s found.");
errorTexts.put(ExceptionType.UnknownOperatorError, "Unexpected operator %s found.");
errorTexts.put(ExceptionType.SyntaxError, "Unexpected %s.");
errorTexts.put(ExceptionType.TypeError, "Incompatible types %s and %s.");
}
private ExceptionType exceptionType;
public InterpreterException(ExceptionType exceptionType, int line, List<String> args) {
super(formatMessage(exceptionType.toString() + what(exceptionType), line, args));
this.exceptionType = exceptionType;
}
private static String formatMessage(String message, int line, List<String> args) {
for (String arg : args) {
message = String.format(message, arg);
}
return String.format("line %d: ", line) + message;
}
public static String what(ExceptionType type) {
return errorTexts.get(type);
}
}
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