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Merge branch 'experiments' of https://github.com/Moderocky/Skript int…
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159 changes: 159 additions & 0 deletions
159
src/main/java/ch/njol/skript/util/ClassInfoReference.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.util; | ||
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import ch.njol.skript.classes.ClassInfo; | ||
import ch.njol.skript.lang.Expression; | ||
import ch.njol.skript.lang.ExpressionList; | ||
import ch.njol.skript.lang.Literal; | ||
import ch.njol.skript.lang.SkriptParser; | ||
import ch.njol.skript.lang.SkriptParser.ParseResult; | ||
import ch.njol.skript.lang.UnparsedLiteral; | ||
import ch.njol.skript.lang.util.SimpleExpression; | ||
import ch.njol.skript.lang.util.SimpleLiteral; | ||
import ch.njol.util.Kleenean; | ||
import org.bukkit.event.Event; | ||
import org.eclipse.jdt.annotation.NonNull; | ||
import org.eclipse.jdt.annotation.Nullable; | ||
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import java.util.Arrays; | ||
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/** | ||
* A ClassInfoReference represents a specific reference to a classinfo including any derivable context | ||
*/ | ||
public final class ClassInfoReference { | ||
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@Nullable | ||
private static UnparsedLiteral getSourceUnparsedLiteral(Expression<?> expression) { | ||
while (!(expression instanceof UnparsedLiteral)) { | ||
Expression<?> nextEarliestExpression = expression.getSource(); | ||
if (nextEarliestExpression == expression) { | ||
return null; | ||
} | ||
expression = nextEarliestExpression; | ||
} | ||
return (UnparsedLiteral) expression; | ||
} | ||
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private static Kleenean determineIfPlural(Expression<ClassInfo<?>> classInfoExpression) { | ||
UnparsedLiteral sourceUnparsedLiteral = getSourceUnparsedLiteral(classInfoExpression); | ||
if (sourceUnparsedLiteral == null) { | ||
return Kleenean.UNKNOWN; | ||
} | ||
String originalExpr = sourceUnparsedLiteral.getData(); | ||
boolean isPlural = Utils.getEnglishPlural(originalExpr).getSecond(); | ||
return Kleenean.get(isPlural); | ||
} | ||
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/** | ||
* Wraps a ClassInfo expression as a ClassInfoReference expression which will return ClassInfoReferences | ||
* with as much derivable context as possible | ||
* @param classInfoExpression the ClassInfo expression to wrap | ||
* @return a wrapper ClassInfoReference expression | ||
*/ | ||
@NonNull | ||
public static Expression<ClassInfoReference> wrap(@NonNull Expression<ClassInfo<?>> classInfoExpression) { | ||
if (classInfoExpression instanceof ExpressionList) { | ||
ExpressionList<?> classInfoExpressionList = (ExpressionList<?>) classInfoExpression; | ||
Expression<ClassInfoReference>[] wrappedExpressions = Arrays.stream(classInfoExpressionList.getExpressions()) | ||
.map(expression -> wrap((Expression<ClassInfo<?>>) expression)) | ||
.toArray(Expression[]::new); | ||
return new ExpressionList<>(wrappedExpressions, ClassInfoReference.class, classInfoExpression.getAnd()); | ||
} | ||
Kleenean isPlural = determineIfPlural(classInfoExpression); | ||
if (classInfoExpression instanceof Literal) { | ||
Literal<ClassInfo<?>> classInfoLiteral = (Literal<ClassInfo<?>>) classInfoExpression; | ||
ClassInfo<?> classInfo = classInfoLiteral.getSingle(); | ||
return new SimpleLiteral<>(new ClassInfoReference(classInfo, isPlural), classInfoLiteral.isDefault()); | ||
} | ||
return new SimpleExpression<ClassInfoReference>() { | ||
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@Override | ||
@Nullable | ||
protected ClassInfoReference[] get(Event event) { | ||
if (classInfoExpression.isSingle()) { | ||
ClassInfo<?> classInfo = classInfoExpression.getSingle(event); | ||
if (classInfo == null) { | ||
return new ClassInfoReference[0]; | ||
} | ||
return new ClassInfoReference[] { new ClassInfoReference(classInfo, isPlural) }; | ||
} | ||
return classInfoExpression.stream(event) | ||
.map(ClassInfoReference::new) | ||
.toArray(ClassInfoReference[]::new); | ||
} | ||
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@Override | ||
public boolean isSingle() { | ||
return classInfoExpression.isSingle(); | ||
} | ||
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@Override | ||
public Class<? extends ClassInfoReference> getReturnType() { | ||
return ClassInfoReference.class; | ||
} | ||
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@Override | ||
public String toString(@Nullable Event event, boolean debug) { | ||
if (debug) { | ||
return classInfoExpression.toString(event, true) + "(wrapped by " + getClass().getSimpleName() + ")"; | ||
} | ||
return classInfoExpression.toString(event, false); | ||
} | ||
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@Override | ||
public boolean init(Expression<?>[] expressions, int matchedPattern, Kleenean isDelayed, ParseResult parseResult) { | ||
return classInfoExpression.init(expressions, matchedPattern, isDelayed, parseResult); | ||
} | ||
}; | ||
} | ||
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private Kleenean plural; | ||
private ClassInfo<?> classInfo; | ||
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public ClassInfoReference(ClassInfo<?> classInfo) { | ||
this(classInfo, Kleenean.UNKNOWN); | ||
} | ||
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public ClassInfoReference(ClassInfo<?> classInfo, Kleenean plural) { | ||
this.classInfo = classInfo; | ||
this.plural = plural; | ||
} | ||
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/** | ||
* @return A Kleenean representing whether this classinfo reference was plural. Kleeanan.UNKNOWN represents | ||
* a reference which did not have appropriate context available. | ||
*/ | ||
public Kleenean isPlural() { | ||
return plural; | ||
} | ||
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public void setPlural(Kleenean plural) { | ||
this.plural = plural; | ||
} | ||
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public ClassInfo<?> getClassInfo() { | ||
return classInfo; | ||
} | ||
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public void setClassInfo(ClassInfo<?> classInfo) { | ||
this.classInfo = classInfo; | ||
} | ||
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} |
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103
src/test/java/org/skriptlang/skript/test/tests/utils/ClassInfoReferenceTest.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 org.skriptlang.skript.test.tests.utils; | ||
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import ch.njol.skript.classes.ClassInfo; | ||
import ch.njol.skript.lang.Expression; | ||
import ch.njol.skript.lang.ExpressionList; | ||
import ch.njol.skript.lang.ParseContext; | ||
import ch.njol.skript.lang.SkriptParser; | ||
import ch.njol.skript.lang.SkriptParser.ParseResult; | ||
import ch.njol.skript.lang.util.ContextlessEvent; | ||
import ch.njol.skript.registrations.Classes; | ||
import ch.njol.skript.util.ClassInfoReference; | ||
import ch.njol.skript.variables.Variables; | ||
import org.bukkit.block.Block; | ||
import org.bukkit.entity.Entity; | ||
import org.bukkit.entity.Player; | ||
import org.bukkit.event.Event; | ||
import org.eclipse.jdt.annotation.NonNull; | ||
import org.junit.Assert; | ||
import org.junit.Test; | ||
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public class ClassInfoReferenceTest { | ||
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@NonNull | ||
private Expression<ClassInfoReference> parseAndWrap(String expr) { | ||
ParseResult parseResult = SkriptParser.parse(expr, "%classinfos%", SkriptParser.ALL_FLAGS, ParseContext.DEFAULT); | ||
if (parseResult == null) | ||
throw new IllegalStateException("Parsed expression " + expr + " is null"); | ||
return ClassInfoReference.wrap((Expression<ClassInfo<?>>) parseResult.exprs[0]); | ||
} | ||
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@Test | ||
public void testWrapper() { | ||
ClassInfoReference reference = parseAndWrap("object").getSingle(null); | ||
Assert.assertEquals(Object.class, reference.getClassInfo().getC()); | ||
Assert.assertTrue(reference.isPlural().isFalse()); | ||
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reference = parseAndWrap("string").getSingle(null); | ||
Assert.assertEquals(String.class, reference.getClassInfo().getC()); | ||
Assert.assertTrue(reference.isPlural().isFalse()); | ||
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reference = parseAndWrap("players").getSingle(null); | ||
Assert.assertEquals(Player.class, reference.getClassInfo().getC()); | ||
Assert.assertTrue(reference.isPlural().isTrue()); | ||
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Event event = ContextlessEvent.get(); | ||
Variables.setVariable("classinfo", Classes.getExactClassInfo(Block.class), event, true); | ||
reference = parseAndWrap("{_classinfo}").getSingle(event); | ||
Assert.assertEquals(Block.class, reference.getClassInfo().getC()); | ||
Assert.assertTrue(reference.isPlural().isUnknown()); | ||
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ExpressionList<ClassInfoReference> referenceList = (ExpressionList<ClassInfoReference>) parseAndWrap("blocks, player or entities"); | ||
Assert.assertFalse(referenceList.getAnd()); | ||
Expression<? extends ClassInfoReference>[] childExpressions = referenceList.getExpressions(); | ||
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ClassInfoReference firstReference = childExpressions[0].getSingle(null); | ||
Assert.assertEquals(Block.class, firstReference.getClassInfo().getC()); | ||
Assert.assertTrue(firstReference.isPlural().isTrue()); | ||
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ClassInfoReference secondReference = childExpressions[1].getSingle(null); | ||
Assert.assertEquals(Player.class, secondReference.getClassInfo().getC()); | ||
Assert.assertTrue(secondReference.isPlural().isFalse()); | ||
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ClassInfoReference thirdReference = childExpressions[2].getSingle(null); | ||
Assert.assertEquals(Entity.class, thirdReference.getClassInfo().getC()); | ||
Assert.assertTrue(thirdReference.isPlural().isTrue()); | ||
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referenceList = (ExpressionList<ClassInfoReference>) parseAndWrap("{_block} and {_player}"); | ||
Assert.assertTrue(referenceList.getAnd()); | ||
childExpressions = referenceList.getExpressions(); | ||
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event = ContextlessEvent.get(); | ||
Variables.setVariable("block", Classes.getExactClassInfo(Block.class), event, true); | ||
Variables.setVariable("player", Classes.getExactClassInfo(Player.class), event, true); | ||
firstReference = childExpressions[0].getSingle(event); | ||
Assert.assertEquals(Block.class, firstReference.getClassInfo().getC()); | ||
Assert.assertTrue(firstReference.isPlural().isUnknown()); | ||
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secondReference = childExpressions[1].getSingle(event); | ||
Assert.assertEquals(Player.class, secondReference.getClassInfo().getC()); | ||
Assert.assertTrue(secondReference.isPlural().isUnknown()); | ||
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} | ||
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} |