/*
* This file is part of Skript.
*
* Skript is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Skript is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Skript. If not, see <http://www.gnu.org/licenses/>.
*
*
* Copyright 2011-2014 Peter Güttinger
*
*/
package ch.njol.skript.lang;
import java.util.logging.Level;
import org.bukkit.event.Event;
import org.eclipse.jdt.annotation.Nullable;
import ch.njol.skript.SkriptAPIException;
import ch.njol.skript.classes.Changer.ChangeMode;
import ch.njol.skript.lang.SkriptParser.ParseResult;
import ch.njol.skript.lang.util.SimpleLiteral;
import ch.njol.skript.log.LogEntry;
import ch.njol.skript.log.ParseLogHandler;
import ch.njol.skript.log.SkriptLogger;
import ch.njol.skript.registrations.Classes;
import ch.njol.util.Checker;
import ch.njol.util.Kleenean;
import ch.njol.util.coll.CollectionUtils;
import ch.njol.util.coll.iterator.NonNullIterator;
/**
* A literal which has yet to be parsed. This is returned if %object(s)% is used within patterns and no expression matches.
*
* @author Peter Güttinger
* @see SimpleLiteral
*/
public class UnparsedLiteral implements Literal<Object> {
private final String data;
@Nullable
private final LogEntry error;
/**
* @param data non-null, non-empty & trimmed string
*/
public UnparsedLiteral(final String data) {
assert data != null && data.length() > 0;
this.data = data;
error = null;
}
/**
* @param data non-null, non-empty & trimmed string
* @param error Error to log if this literal cannot be parsed
*/
public UnparsedLiteral(final String data, final @Nullable LogEntry error) {
assert data != null && data.length() > 0;
assert error == null || error.getLevel() == Level.SEVERE;
this.data = data;
this.error = error;
}
public String getData() {
return data;
}
@Override
public Class<? extends Object> getReturnType() {
return Object.class;
}
@Override
@Nullable
public <R> Literal<? extends R> getConvertedExpression(final Class<R>... to) {
return getConvertedExpression(ParseContext.DEFAULT, to);
}
@Nullable
public <R> Literal<? extends R> getConvertedExpression(final ParseContext context, final Class<? extends R>... to) {
assert to != null && to.length > 0;
assert to.length == 1 || !CollectionUtils.contains(to, Object.class);
final ParseLogHandler log = SkriptLogger.startParseLogHandler();
try {
for (final Class<? extends R> t : to) {
assert t != null;
final R r = Classes.parse(data, t, context);
if (r != null) {
log.printLog();
return new SimpleLiteral<R>(r, false);
}
log.clear();
}
if (error != null) {
log.printLog();
SkriptLogger.log(error);
} else {
log.printError();
}
return null;
} finally {
log.stop();
}
// V2
// if (to[0] != Object.class) {
// return (Literal<? extends R>) SkriptParser.parseExpression(data, new Converter<String, Literal<? extends R>>() {
// @Override
// public Literal<? extends R> convert(final String s) {
// for (final Class<? extends R> c : to) {
// final R r = Classes.parse(s, c, context);
// if (r != null)
// return new SimpleLiteral<R>(r, false);
// }
// return null;
// }
// }, "'" + data + "' is " + SkriptParser.notOfType(to));
// }
// return (Literal<? extends R>) SkriptParser.parseExpression(data, new Converter<String, Literal<Object>>() {
// @Override
// public Literal<Object> convert(final String s) {
// for (final ClassInfo<?> ci : Classes.getClassInfos()) {
// if (ci.getParser() != null && ci.getParser().canParse(context)) {
// final Object o = ci.getParser().parse(s, context);
// if (o != null)
// return new SimpleLiteral<Object>(o, false);
// }
// }
// return null;
// }
// }, null);
// V1
// if (to == String.class && context == ParseContext.DEFAULT) {
// return (Literal<? extends R>) VariableStringLiteral.newInstance(this);
// } else if (to == Object.class) {
// final SimpleLog log = SkriptLogger.startSubLog();
// if (context == ParseContext.DEFAULT) {
// final VariableStringLiteral vsl = VariableStringLiteral.newInstance(this);
// if (vsl != null)
// return (Literal<? extends R>) vsl;
// if (log.hasErrors()) {
// log.printLog();
// return null;
// }
// }
// for (final ClassInfo<?> ci : Classes.getClassInfos()) {
// if (ci.getParser() != null && ci.getParser().canParse(context)) {
// log.clear();
// final Literal<?> l = convert(ci.getC(), ci.getParser(), context);
// if (l != null) {
// log.stop();
// log.printLog();
// return (Literal<? extends R>) l;
// }
// }
// }
// log.stop();
// return null;
// }
// final Parser<? extends R> p = Classes.getParser(to);
// if (p == null || !p.canParse(context))
// return null;
// return convert(to, p, context);
}
// private <T> Literal<T> convert(final Class<T> to, final Parser<?> parser, final ParseContext context) {
// assert parser.canParse(context);
// final SimpleLog log = SkriptLogger.startSubLog();
//
// String last = data;
// LogEntry lastError = null;
//
// final T r = (T) parser.parse(data, context);
// if (r != null) {
// log.stop();
// log.printLog();
// return new SimpleLiteral<T>(r, false);
// }
// lastError = log.getFirstError();
// log.clear();
//
// final Deque<T> ts = new LinkedList<T>();
// final Matcher m = SkriptParser.listSplitPattern.matcher(data);
// int end = data.length();
// int expectedEnd = -1;
// boolean and = true;
// boolean isAndSet = false;
// while (m.find()) {
// if (expectedEnd == -1)
// expectedEnd = m.start();
// final T t = (T) parser.parse(last = data.substring(m.end(), end), context);
// lastError = log.getFirstError();
// if (t != null) {
// if (!m.group().matches("\\s*,\\s*")) {
// if (isAndSet) {
// if (and != m.group().toLowerCase().contains("and")) {
// Skript.warning("list has multiple 'and' or 'or', will default to 'and'");
// and = true;
// }
// } else {
// and = m.group().toLowerCase().contains("and");
// isAndSet = true;
// }
// }
// ts.addFirst(t);
// log.clear();
// end = m.start();
// m.region(0, end);
// } else {
// log.clear();
// }
// }
// if (!isAndSet)
// Skript.warning("List is missing 'and' or 'or', defaulting to 'and'");
// if (end == expectedEnd) {
// final T t = (T) parser.parse(last = data.substring(0, end), context);
// lastError = log.getFirstError();
// log.stop();
// if (t != null) {
// log.printLog();
// ts.addFirst(t);
// return new SimpleLiteral<T>(ts.toArray((T[]) Array.newInstance(to, ts.size())), to, and, this);
// }
// }
// log.stop();
// if (lastError != null)
// SkriptLogger.log(lastError);
// else
// Skript.error("'" + last + "' is not " + Utils.a(Classes.getSuperClassInfo(to).getName()));
// return null;
// }
@Override
public String toString(final @Nullable Event e, final boolean debug) {
return "'" + data + "'";
}
@Override
public String toString() {
return toString(null, false);
}
@Override
public Expression<?> getSource() {
return this;
}
@Override
public boolean getAnd() {
return true;
}
@Override
public boolean isSingle() {
return true;
}
@Override
public Expression<? extends Object> simplify() {
return this;
}
private final static SkriptAPIException invalidAccessException() {
return new SkriptAPIException("UnparsedLiterals must be converted before use");
}
@Override
public Object[] getAll() {
throw invalidAccessException();
}
@Override
public Object[] getAll(final Event e) {
throw invalidAccessException();
}
@Override
public Object[] getArray() {
throw invalidAccessException();
}
@Override
public Object[] getArray(final Event e) {
throw invalidAccessException();
}
@Override
public Object getSingle() {
throw invalidAccessException();
}
@Override
public Object getSingle(final Event e) {
throw invalidAccessException();
}
@Override
public NonNullIterator<Object> iterator(final Event e) {
throw invalidAccessException();
}
@Override
public void change(final Event e, final @Nullable Object[] delta, final ChangeMode mode) throws UnsupportedOperationException {
throw invalidAccessException();
}
@Override
public Class<?>[] acceptChange(final ChangeMode mode) {
throw invalidAccessException();
}
@Override
public boolean check(final Event e, final Checker<? super Object> c) {
throw invalidAccessException();
}
@Override
public boolean check(final Event e, final Checker<? super Object> c, final boolean negated) {
throw invalidAccessException();
}
@Override
public boolean setTime(final int time) {
throw invalidAccessException();
}
@Override
public int getTime() {
throw invalidAccessException();
}
@Override
public boolean isDefault() {
throw invalidAccessException();
}
@Override
public boolean isLoopOf(final String s) {
throw invalidAccessException();
}
@Override
public boolean init(final Expression<?>[] exprs, final int matchedPattern, final Kleenean isDelayed, final ParseResult parseResult) {
throw invalidAccessException();
}
}