Merge branch 'moar-typehints'

src/pocketmine/level/ChunkLoader.php

@@ -45,14 +45,14 @@ interface ChunkLoader{
 	 *
 	 * @return int
 	 */
-	public function getLoaderId();
+	public function getLoaderId() : int;
 
 	/**
 	 * Returns if the chunk loader is currently active
 	 *
 	 * @return bool
 	 */
-	public function isLoaderActive();
+	public function isLoaderActive() : bool;
 
 	/**
 	 * @return Position

src/pocketmine/level/ChunkManager.php

@@ -130,7 +130,7 @@ interface ChunkManager{
 	 *
 	 * @return int
 	 */
-	public function getSeed();
+	public function getSeed() : int;
 
 	/**
 	 * Returns the height of the world

src/pocketmine/level/Explosion.php

@@ -63,7 +63,7 @@ class Explosion{
 	/**
 	 * @return bool
 	 */
-	public function explodeA(){
+	public function explodeA() : bool{
 		if($this->size < 0.1){
 			return false;
 		}
@@ -114,7 +114,7 @@ class Explosion{
 		return true;
 	}
 
-	public function explodeB(){
+	public function explodeB() : bool{
 		$send = [];
 		$updateBlocks = [];
 

src/pocketmine/level/Level.php

@@ -173,7 +173,7 @@ class Level implements ChunkManager, Metadatable{
 	/** @var Player[][] */
 	private $playerLoaders = [];
 
-	/** @var DataPacket[] */
+	/** @var DataPacket[][] */
 	private $chunkPackets = [];
 
 	/** @var float[] */
@@ -292,7 +292,7 @@ class Level implements ChunkManager, Metadatable{
 	}
 
 	public static function generateChunkLoaderId(ChunkLoader $loader) : int{
-		if($loader->getLoaderId() === 0 or $loader->getLoaderId() === null){
+		if($loader->getLoaderId() === 0){
 			return self::$chunkLoaderCounter++;
 		}else{
 			throw new \InvalidStateException("ChunkLoader has a loader id already assigned: " . $loader->getLoaderId());
@@ -2774,9 +2774,9 @@ class Level implements ChunkManager, Metadatable{
 	/**
 	 * Gets the level seed
 	 *
-	 * @return int|string int value of seed, or the string numeric representation of a long in 32-bit systems
+	 * @return int
 	 */
-	public function getSeed(){
+	public function getSeed() : int{
 		return $this->provider->getSeed();
 	}
 

src/pocketmine/level/Location.php

@@ -55,7 +55,7 @@ class Location extends Position{
 	 *
 	 * @return Location
 	 */
-	public static function fromObject(Vector3 $pos, Level $level = null, $yaw = 0.0, $pitch = 0.0){
+	public static function fromObject(Vector3 $pos, Level $level = null, $yaw = 0.0, $pitch = 0.0) : Location{
 		return new Location($pos->x, $pos->y, $pos->z, $yaw, $pitch, $level ?? (($pos instanceof Position) ? $pos->level : null));
 	}
 
@@ -80,7 +80,7 @@ class Location extends Position{
 		return "Location (level=" . ($this->isValid() ? $this->getLevel()->getName() : "null") . ", x=$this->x, y=$this->y, z=$this->z, yaw=$this->yaw, pitch=$this->pitch)";
 	}
 
-	public function equals(Vector3 $v){
+	public function equals(Vector3 $v) : bool{
 		if($v instanceof Location){
 			return parent::equals($v) and $v->yaw == $this->yaw and $v->pitch == $this->pitch;
 		}

src/pocketmine/level/MovingObjectPosition.php

@@ -52,15 +52,15 @@ class MovingObjectPosition{
 	}
 
 	/**
-	 * @param int     $x
-	 * @param int     $y
-	 * @param int     $z
-	 * @param int     $side
+	 * @param int $x
+	 * @param int $y
+	 * @param int $z
+	 * @param int $side
 	 * @param Vector3 $hitVector
 	 *
 	 * @return MovingObjectPosition
 	 */
-	public static function fromBlock($x, $y, $z, $side, Vector3 $hitVector){
+	public static function fromBlock(int $x, int $y, int $z, int $side, Vector3 $hitVector) : MovingObjectPosition{
 		$ob = new MovingObjectPosition;
 		$ob->typeOfHit = 0;
 		$ob->blockX = $x;
@@ -75,7 +75,7 @@ class MovingObjectPosition{
 	 *
 	 * @return MovingObjectPosition
 	 */
-	public static function fromEntity(Entity $entity){
+	public static function fromEntity(Entity $entity) : MovingObjectPosition{
 		$ob = new MovingObjectPosition;
 		$ob->typeOfHit = 1;
 		$ob->entityHit = $entity;

src/pocketmine/level/Position.php

@@ -95,7 +95,7 @@ class Position extends Vector3{
 	 *
 	 * @return bool
 	 */
-	public function isValid(){
+	public function isValid() : bool{
 		return $this->getLevel() instanceof Level;
 	}
 
@@ -133,7 +133,7 @@ class Position extends Vector3{
 		return $this;
 	}
 
-	public function equals(Vector3 $v){
+	public function equals(Vector3 $v) : bool{
 		if($v instanceof Position){
 			return parent::equals($v) and $v->getLevel() === $this->getLevel();
 		}

src/pocketmine/level/SimpleChunkManager.php

@@ -164,7 +164,7 @@ class SimpleChunkManager implements ChunkManager{
 	 *
 	 * @return int
 	 */
-	public function getSeed(){
+	public function getSeed() : int{
 		return $this->seed;
 	}
 

src/pocketmine/level/format/Chunk.php

@@ -28,7 +28,6 @@ namespace pocketmine\level\format;
 
 use pocketmine\block\Block;
 use pocketmine\entity\Entity;
-use pocketmine\level\format\ChunkException;
 use pocketmine\level\Level;
 use pocketmine\nbt\NBT;
 use pocketmine\nbt\tag\CompoundTag;
@@ -989,7 +988,7 @@ class Chunk{
 	 *
 	 * @return Chunk
 	 */
-	public static function fastDeserialize(string $data){
+	public static function fastDeserialize(string $data) : Chunk{
 		$stream = new BinaryStream();
 		$stream->setBuffer($data);
 		$data = null;

src/pocketmine/level/format/io/BaseLevelProvider.php

@@ -76,7 +76,7 @@ abstract class BaseLevelProvider implements LevelProvider{
 		return $this->level->getServer();
 	}
 
-	public function getLevel(){
+	public function getLevel() : Level{
 		return $this->level;
 	}
 

src/pocketmine/level/format/io/LevelProvider.php

@@ -174,7 +174,7 @@ interface LevelProvider{
 	/**
 	 * @return string
 	 */
-	public function getName();
+	public function getName() : string;
 
 	/**
 	 * @return int|string int, or the string numeric representation of a long in 32-bit systems
@@ -216,7 +216,7 @@ interface LevelProvider{
 	/**
 	 * @return Level
 	 */
-	public function getLevel();
+	public function getLevel() : Level;
 
 	public function close();
 

src/pocketmine/level/format/io/leveldb/LevelDB.php

@@ -25,7 +25,6 @@ namespace pocketmine\level\format\io\leveldb;
 
 use pocketmine\entity\Entity;
 use pocketmine\level\format\Chunk;
-use pocketmine\level\format\ChunkException;
 use pocketmine\level\format\io\BaseLevelProvider;
 use pocketmine\level\format\io\ChunkUtils;
 use pocketmine\level\format\io\exception\UnsupportedChunkFormatException;
@@ -576,7 +575,7 @@ class LevelDB extends BaseLevelProvider{
 	/**
 	 * @return \LevelDB
 	 */
-	public function getDatabase(){
+	public function getDatabase() : \LevelDB{
 		return $this->db;
 	}
 

src/pocketmine/level/format/io/region/McRegion.php

@@ -422,7 +422,7 @@ class McRegion extends BaseLevelProvider{
 	 *
 	 * @return Chunk
 	 */
-	public function getEmptyChunk(int $chunkX, int $chunkZ){
+	public function getEmptyChunk(int $chunkX, int $chunkZ) : Chunk{
 		return Chunk::getEmptyChunk($chunkX, $chunkZ);
 	}
 

src/pocketmine/level/generator/Flat.php

@@ -50,11 +50,11 @@ class Flat extends Generator{
 	private $populators = [];
 	private $structure, $chunks, $options, $floorLevel, $preset;
 
-	public function getSettings(){
+	public function getSettings() : array{
 		return $this->options;
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "flat";
 	}
 
@@ -155,7 +155,7 @@ class Flat extends Generator{
 		*/
 	}
 
-	public function generateChunk($chunkX, $chunkZ){
+	public function generateChunk(int $chunkX, int $chunkZ){
 		if($this->chunk === null){
 			if(isset($this->options["preset"]) and $this->options["preset"] != ""){
 				$this->parsePreset($this->options["preset"], $chunkX, $chunkZ);
@@ -169,7 +169,7 @@ class Flat extends Generator{
 		$this->level->setChunk($chunkX, $chunkZ, $chunk);
 	}
 
-	public function populateChunk($chunkX, $chunkZ){
+	public function populateChunk(int $chunkX, int $chunkZ){
 		$this->random->setSeed(0xdeadbeef ^ ($chunkX << 8) ^ $chunkZ ^ $this->level->getSeed());
 		foreach($this->populators as $populator){
 			$populator->populate($this->level, $chunkX, $chunkZ, $this->random);
@@ -177,7 +177,7 @@ class Flat extends Generator{
 
 	}
 
-	public function getSpawn(){
+	public function getSpawn() : Vector3{
 		return new Vector3(128, $this->floorLevel, 128);
 	}
 }

src/pocketmine/level/generator/Generator.php

@@ -29,12 +29,13 @@ namespace pocketmine\level\generator;
 use pocketmine\level\ChunkManager;
 use pocketmine\level\generator\noise\Noise;
 use pocketmine\level\generator\normal\Normal;
+use pocketmine\math\Vector3;
 use pocketmine\utils\Random;
 
 abstract class Generator{
 	private static $list = [];
 
-	public static function addGenerator($object, $name){
+	public static function addGenerator($object, $name) : bool{
 		if(is_subclass_of($object, Generator::class) and !isset(Generator::$list[$name = strtolower($name)])){
 			Generator::$list[$name] = $object;
 
@@ -47,7 +48,7 @@ abstract class Generator{
 	/**
 	 * @return string[]
 	 */
-	public static function getGeneratorList(){
+	public static function getGeneratorList() : array{
 		return array_keys(Generator::$list);
 	}
 
@@ -76,17 +77,15 @@ abstract class Generator{
 
 	/**
 	 * @param Noise $noise
-	 * @param int   $xSize
-	 * @param int   $samplingRate
-	 * @param int   $x
-	 * @param int   $y
-	 * @param int   $z
+	 * @param int $xSize
+	 * @param int $samplingRate
+	 * @param int $x
+	 * @param int $y
+	 * @param int $z
 	 *
 	 * @return \SplFixedArray
-	 *
-	 * @throws \InvalidArgumentCountException
 	 */
-	public static function getFastNoise1D(Noise $noise, $xSize, $samplingRate, $x, $y, $z){
+	public static function getFastNoise1D(Noise $noise, int $xSize, int $samplingRate, int $x, int $y, int $z) : \SplFixedArray{
 		if($samplingRate === 0){
 			throw new \InvalidArgumentException("samplingRate cannot be 0");
 		}
@@ -112,19 +111,16 @@ abstract class Generator{
 
 	/**
 	 * @param Noise $noise
-	 * @param int   $xSize
-	 * @param int   $zSize
-	 * @param int   $samplingRate
-	 * @param int   $x
-	 * @param int   $y
-	 * @param int   $z
+	 * @param int $xSize
+	 * @param int $zSize
+	 * @param int $samplingRate
+	 * @param int $x
+	 * @param int $y
+	 * @param int $z
 	 *
 	 * @return \SplFixedArray
-	 *
-	 * @throws \InvalidArgumentException
-	 * @throws \InvalidArgumentCountException
 	 */
-	public static function getFastNoise2D(Noise $noise, $xSize, $zSize, $samplingRate, $x, $y, $z){
+	public static function getFastNoise2D(Noise $noise, int $xSize, int $zSize, int $samplingRate, int $x, int $y, int $z) : \SplFixedArray{
 		assert($samplingRate !== 0, new \InvalidArgumentException("samplingRate cannot be 0"));
 
 		assert($xSize % $samplingRate === 0, new \InvalidArgumentCountException("xSize % samplingRate must return 0"));
@@ -162,22 +158,19 @@ abstract class Generator{
 
 	/**
 	 * @param Noise $noise
-	 * @param int   $xSize
-	 * @param int   $ySize
-	 * @param int   $zSize
-	 * @param int   $xSamplingRate
-	 * @param int   $ySamplingRate
-	 * @param int   $zSamplingRate
-	 * @param int   $x
-	 * @param int   $y
-	 * @param int   $z
+	 * @param int $xSize
+	 * @param int $ySize
+	 * @param int $zSize
+	 * @param int $xSamplingRate
+	 * @param int $ySamplingRate
+	 * @param int $zSamplingRate
+	 * @param int $x
+	 * @param int $y
+	 * @param int $z
 	 *
-	 * @return \SplFixedArray
-	 *
-	 * @throws \InvalidArgumentException
-	 * @throws \InvalidArgumentCountException
+	 * @return array
 	 */
-	public static function getFastNoise3D(Noise $noise, $xSize, $ySize, $zSize, $xSamplingRate, $ySamplingRate, $zSamplingRate, $x, $y, $z){
+	public static function getFastNoise3D(Noise $noise, int $xSize, int $ySize, int $zSize, int $xSamplingRate, int $ySamplingRate, int $zSamplingRate, int $x, int $y, int $z) : array{
 
 		assert($xSamplingRate !== 0, new \InvalidArgumentException("xSamplingRate cannot be 0"));
 		assert($zSamplingRate !== 0, new \InvalidArgumentException("zSamplingRate cannot be 0"));
@@ -239,13 +232,13 @@ abstract class Generator{
 
 	abstract public function init(ChunkManager $level, Random $random);
 
-	abstract public function generateChunk($chunkX, $chunkZ);
+	abstract public function generateChunk(int $chunkX, int $chunkZ);
 
-	abstract public function populateChunk($chunkX, $chunkZ);
+	abstract public function populateChunk(int $chunkX, int $chunkZ);
 
-	abstract public function getSettings();
+	abstract public function getSettings() : array;
 
-	abstract public function getName();
+	abstract public function getName() : string;
 
-	abstract public function getSpawn();
+	abstract public function getSpawn() : Vector3;
 }

src/pocketmine/level/generator/biome/Biome.php

@@ -70,7 +70,9 @@ abstract class Biome{
 	/** @var Populator[] */
 	private $populators = [];
 
+	/** @var int */
 	private $minElevation;
+	/** @var int */
 	private $maxElevation;
 
 	private $groundCover = [];
@@ -78,9 +80,9 @@ abstract class Biome{
 	protected $rainfall = 0.5;
 	protected $temperature = 0.5;
 
-	protected static function register($id, Biome $biome){
-		self::$biomes[(int) $id] = $biome;
-		$biome->setId((int) $id);
+	protected static function register(int $id, Biome $biome){
+		self::$biomes[$id] = $biome;
+		$biome->setId($id);
 	}
 
 	public static function init(){
@@ -102,11 +104,11 @@ abstract class Biome{
 	}
 
 	/**
-	 * @param $id
+	 * @param int $id
 	 *
 	 * @return Biome
 	 */
-	public static function getBiome($id){
+	public static function getBiome(int $id) : Biome{
 		return self::$biomes[$id] ?? self::$biomes[self::OCEAN];
 	}
 
@@ -118,38 +120,47 @@ abstract class Biome{
 		$this->populators[] = $populator;
 	}
 
-	public function populateChunk(ChunkManager $level, $chunkX, $chunkZ, Random $random){
+	/**
+	 * @param ChunkManager $level
+	 * @param int          $chunkX
+	 * @param int          $chunkZ
+	 * @param Random       $random
+	 */
+	public function populateChunk(ChunkManager $level, int $chunkX, int $chunkZ, Random $random){
 		foreach($this->populators as $populator){
 			$populator->populate($level, $chunkX, $chunkZ, $random);
 		}
 	}
 
-	public function getPopulators(){
+	/**
+	 * @return Populator[]
+	 */
+	public function getPopulators() : array{
 		return $this->populators;
 	}
 
-	public function setId($id){
+	public function setId(int $id){
 		if(!$this->registered){
 			$this->registered = true;
 			$this->id = $id;
 		}
 	}
 
-	public function getId(){
+	public function getId() : int{
 		return $this->id;
 	}
 
-	abstract public function getName();
+	abstract public function getName() : string;
 
-	public function getMinElevation(){
+	public function getMinElevation() : int{
 		return $this->minElevation;
 	}
 
-	public function getMaxElevation(){
+	public function getMaxElevation() : int{
 		return $this->maxElevation;
 	}
 
-	public function setElevation($min, $max){
+	public function setElevation(int $min, int $max){
 		$this->minElevation = $min;
 		$this->maxElevation = $max;
 	}
@@ -157,7 +168,7 @@ abstract class Biome{
 	/**
 	 * @return Block[]
 	 */
-	public function getGroundCover(){
+	public function getGroundCover() : array{
 		return $this->groundCover;
 	}
 
@@ -168,11 +179,11 @@ abstract class Biome{
 		$this->groundCover = $covers;
 	}
 
-	public function getTemperature(){
+	public function getTemperature() : float{
 		return $this->temperature;
 	}
 
-	public function getRainfall(){
+	public function getRainfall() : float{
 		return $this->rainfall;
 	}
 }

src/pocketmine/level/generator/biome/BiomeSelector.php

@@ -78,7 +78,7 @@ class BiomeSelector{
 	 *
 	 * @return Biome
 	 */
-	public function pickBiome($x, $z){
+	public function pickBiome($x, $z) : Biome{
 		$temperature = (int) ($this->getTemperature($x, $z) * 63);
 		$rainfall = (int) ($this->getRainfall($x, $z) * 63);
 

src/pocketmine/level/generator/hell/HellBiome.php

@@ -27,7 +27,7 @@ use pocketmine\level\generator\biome\Biome;
 
 class HellBiome extends Biome{
 
-	public function getName(){
+	public function getName() : string{
 		return "Hell";
 	}
 }

src/pocketmine/level/generator/hell/Nether.php

@@ -81,11 +81,11 @@ class Nether extends Generator{
 		}
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "nether";
 	}
 
-	public function getSettings(){
+	public function getSettings() : array{
 		return [];
 	}
 
@@ -110,7 +110,7 @@ class Nether extends Generator{
 		$this->populators[] = $ores;*/
 	}
 
-	public function generateChunk($chunkX, $chunkZ){
+	public function generateChunk(int $chunkX, int $chunkZ){
 		$this->random->setSeed(0xdeadbeef ^ ($chunkX << 8) ^ $chunkZ ^ $this->level->getSeed());
 
 		$noise = Generator::getFastNoise3D($this->noiseBase, 16, 128, 16, 4, 8, 4, $chunkX * 16, 0, $chunkZ * 16);
@@ -145,7 +145,7 @@ class Nether extends Generator{
 		}
 	}
 
-	public function populateChunk($chunkX, $chunkZ){
+	public function populateChunk(int $chunkX, int $chunkZ){
 		$this->random->setSeed(0xdeadbeef ^ ($chunkX << 8) ^ $chunkZ ^ $this->level->getSeed());
 		foreach($this->populators as $populator){
 			$populator->populate($this->level, $chunkX, $chunkZ, $this->random);
@@ -156,7 +156,7 @@ class Nether extends Generator{
 		$biome->populateChunk($this->level, $chunkX, $chunkZ, $this->random);
 	}
 
-	public function getSpawn(){
+	public function getSpawn() : Vector3{
 		return new Vector3(127.5, 128, 127.5);
 	}
 

src/pocketmine/level/generator/noise/Noise.php

@@ -36,7 +36,7 @@ abstract class Noise{
 	protected $persistence;
 	protected $expansion;
 
-	public static function floor($x){
+	public static function floor($x) : int{
 		return $x >= 0 ? (int) $x : (int) ($x - 1);
 	}
 

src/pocketmine/level/generator/normal/Normal.php

@@ -90,15 +90,15 @@ class Normal extends Generator{
 		}
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "normal";
 	}
 
-	public function getSettings(){
+	public function getSettings() : array{
 		return [];
 	}
 
-	public function pickBiome($x, $z){
+	public function pickBiome(int $x, int $z){
 		$hash = $x * 2345803 ^ $z * 9236449 ^ $this->level->getSeed();
 		$hash *= $hash + 223;
 		$xNoise = $hash >> 20 & 3;
@@ -189,7 +189,7 @@ class Normal extends Generator{
 		$this->populators[] = $ores;
 	}
 
-	public function generateChunk($chunkX, $chunkZ){
+	public function generateChunk(int $chunkX, int $chunkZ){
 		$this->random->setSeed(0xdeadbeef ^ ($chunkX << 8) ^ $chunkZ ^ $this->level->getSeed());
 
 		$noise = Generator::getFastNoise3D($this->noiseBase, 16, 128, 16, 4, 8, 4, $chunkX * 16, 0, $chunkZ * 16);
@@ -256,7 +256,7 @@ class Normal extends Generator{
 		}
 	}
 
-	public function populateChunk($chunkX, $chunkZ){
+	public function populateChunk(int $chunkX, int $chunkZ){
 		$this->random->setSeed(0xdeadbeef ^ ($chunkX << 8) ^ $chunkZ ^ $this->level->getSeed());
 		foreach($this->populators as $populator){
 			$populator->populate($this->level, $chunkX, $chunkZ, $this->random);
@@ -267,7 +267,7 @@ class Normal extends Generator{
 		$biome->populateChunk($this->level, $chunkX, $chunkZ, $this->random);
 	}
 
-	public function getSpawn(){
+	public function getSpawn() : Vector3{
 		return new Vector3(127.5, 128, 127.5);
 	}
 

src/pocketmine/level/generator/normal/biome/DesertBiome.php

@@ -34,7 +34,7 @@ class DesertBiome extends SandyBiome{
 		$this->rainfall = 0;
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "Desert";
 	}
 }

src/pocketmine/level/generator/normal/biome/ForestBiome.php

@@ -59,7 +59,7 @@ class ForestBiome extends GrassyBiome{
 		}
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return $this->type === self::TYPE_BIRCH ? "Birch Forest" : "Forest";
 	}
 }

src/pocketmine/level/generator/normal/biome/IcePlainsBiome.php

@@ -41,7 +41,7 @@ class IcePlainsBiome extends SnowyBiome{
 		$this->rainfall = 0.8;
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "Ice Plains";
 	}
 }

src/pocketmine/level/generator/normal/biome/MountainsBiome.php

@@ -48,7 +48,7 @@ class MountainsBiome extends GrassyBiome{
 		$this->rainfall = 0.5;
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "Mountains";
 	}
 }

src/pocketmine/level/generator/normal/biome/OceanBiome.php

@@ -41,7 +41,7 @@ class OceanBiome extends GrassyBiome{
 		$this->rainfall = 0.5;
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "Ocean";
 	}
 }

src/pocketmine/level/generator/normal/biome/PlainBiome.php

@@ -41,7 +41,7 @@ class PlainBiome extends GrassyBiome{
 		$this->rainfall = 0.4;
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "Plains";
 	}
 }

src/pocketmine/level/generator/normal/biome/RiverBiome.php

@@ -41,7 +41,7 @@ class RiverBiome extends GrassyBiome{
 		$this->rainfall = 0.7;
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "River";
 	}
 }

src/pocketmine/level/generator/normal/biome/SmallMountainsBiome.php

@@ -32,7 +32,7 @@ class SmallMountainsBiome extends MountainsBiome{
 		$this->setElevation(63, 97);
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "Small Mountains";
 	}
 }

src/pocketmine/level/generator/normal/biome/SwampBiome.php

@@ -34,7 +34,7 @@ class SwampBiome extends GrassyBiome{
 		$this->rainfall = 0.9;
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "Swamp";
 	}
 }

src/pocketmine/level/generator/normal/biome/TaigaBiome.php

@@ -47,7 +47,7 @@ class TaigaBiome extends SnowyBiome{
 		$this->rainfall = 0.8;
 	}
 
-	public function getName(){
+	public function getName() : string{
 		return "Taiga";
 	}
 }

src/pocketmine/level/generator/object/BigTree.php

@@ -41,7 +41,7 @@ class BigTree extends Tree{
 	private $addLogVines = false;
 	private $addCocoaPlants = false;
 
-	public function canPlaceObject(ChunkManager $level, $x, $y, $z, Random $random){
+	public function canPlaceObject(ChunkManager $level, int $x, int $y, int $z, Random $random) : bool{
 		return false;
 	}
 

src/pocketmine/level/generator/object/Pond.php

@@ -37,7 +37,7 @@ class Pond{
 		$this->random = $random;
 	}
 
-	public function canPlaceObject(ChunkManager $level, Vector3 $pos){
+	public function canPlaceObject(ChunkManager $level, Vector3 $pos) : bool{
 		return false;
 	}
 

src/pocketmine/level/generator/object/Tree.php

@@ -75,7 +75,7 @@ abstract class Tree{
 	}
 
 
-	public function canPlaceObject(ChunkManager $level, $x, $y, $z, Random $random){
+	public function canPlaceObject(ChunkManager $level, int $x, int $y, int $z, Random $random) : bool{
 		$radiusToCheck = 0;
 		for($yy = 0; $yy < $this->treeHeight + 3; ++$yy){
 			if($yy == 1 or $yy === $this->treeHeight){