/
ExprSets.java
107 lines (92 loc) · 3.33 KB
/
ExprSets.java
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/**
* 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 Peter Güttinger, SkriptLang team and contributors
*/
package ch.njol.skript.expressions;
import java.util.Iterator;
import java.util.function.Supplier;
import org.bukkit.event.Event;
import org.eclipse.jdt.annotation.Nullable;
import com.google.common.collect.Lists;
import ch.njol.skript.Skript;
import ch.njol.skript.classes.ClassInfo;
import ch.njol.skript.doc.Description;
import ch.njol.skript.doc.Examples;
import ch.njol.skript.doc.Name;
import ch.njol.skript.doc.Since;
import ch.njol.skript.lang.Expression;
import ch.njol.skript.lang.ExpressionType;
import ch.njol.skript.lang.Literal;
import ch.njol.skript.lang.SkriptParser.ParseResult;
import ch.njol.skript.lang.util.SimpleExpression;
import ch.njol.skript.util.Utils;
import ch.njol.util.Kleenean;
@Name("Sets")
@Description("Returns a list of all the values of a type. Useful for looping.")
@Examples({
"loop all attribute types:",
"\tset loop-value attribute of player to 10",
"\tmessage \"Set attribute %loop-value% to 10!\""
})
// Class history rename order: LoopItems.class -> ExprItems.class (renamed in 2.3-alpha1) -> ExprSets.class (renamed in 2.7.0)
@Since("1.0 pre-5, 2.7 (classinfo)")
public class ExprSets extends SimpleExpression<Object> {
static {
Skript.registerExpression(ExprSets.class, Object.class, ExpressionType.PATTERN_MATCHES_EVERYTHING,
"[all [[of] the]|the|every] %*classinfo%");
}
@Nullable
private Supplier<? extends Iterator<?>> supplier;
private ClassInfo<?> classInfo;
@Override
@SuppressWarnings("unchecked")
public boolean init(Expression<?>[] exprs, int matchedPattern, Kleenean isDelayed, ParseResult parser) {
// This check makes sure that "color" is not a valid pattern, and the type the user inputted has to be plural, unless it's "every %classinfo%"
boolean plural = Utils.getEnglishPlural(parser.expr).getSecond();
if (!plural && !parser.expr.startsWith("every"))
return false;
classInfo = ((Literal<ClassInfo<?>>) exprs[0]).getSingle();
supplier = classInfo.getSupplier();
if (supplier == null) {
Skript.error("You cannot get all values of type '" + classInfo.getName().getSingular() + "'");
return false;
}
return true;
}
@Override
protected Object[] get(Event event) {
Iterator<?> iterator = supplier.get();
return Lists.newArrayList(iterator).toArray(new Object[0]);
}
@Override
@Nullable
public Iterator<?> iterator(Event event) {
return supplier.get();
}
@Override
public boolean isSingle() {
return false;
}
@Override
public Class<?> getReturnType() {
return classInfo.getC();
}
@Override
public String toString(@Nullable Event event, boolean debug) {
return "all of the " + classInfo.getName().getPlural();
}
}