downgrade to PHP 7.0.x

Author: JanTvrdik

composer.json

@@ -1,6 +1,9 @@
 {
 	"name": "phpstan/phpdoc-parser",
 	"license": "MIT",
+	"require": {
+		"php": "~7.0"
+	},
 	"autoload": {
 		"psr-4": {"PHPStan\\PhpDocParser\\": ["src/"]}
 	}

src/Ast/ConstExpr/ConstExprArrayItemNode.php

@@ -12,7 +12,7 @@ class ConstExprArrayItemNode implements ConstExprNode
 	public $value;
 
 
-	public function __construct(?ConstExprNode $key, ConstExprNode $value)
+	public function __construct(ConstExprNode $key = null, ConstExprNode $value)
 	{
 		$this->key = $key;
 		$this->value = $value;

src/Ast/PhpDoc/MethodTagValueNode.php

@@ -23,7 +23,7 @@ class MethodTagValueNode implements PhpDocTagValueNode
 	public $description;
 
 
-	public function __construct(bool $isStatic, ?TypeNode $returnType, string $methodName, array $parameters, string $description)
+	public function __construct(bool $isStatic, TypeNode $returnType = null, string $methodName, array $parameters, string $description)
 	{
 		$this->isStatic = $isStatic;
 		$this->returnType = $returnType;

src/Ast/PhpDoc/MethodTagValueParameterNode.php

@@ -25,7 +25,7 @@ class MethodTagValueParameterNode implements Node
 	public $defaultValue;
 
 
-	public function __construct(?TypeNode $type, bool $isReference, bool $isVariadic, string $parameterName, ?ConstExprNode $defaultValue)
+	public function __construct(TypeNode $type = null, bool $isReference, bool $isVariadic, string $parameterName, ConstExprNode $defaultValue = null)
 	{
 		$this->type = $type;
 		$this->isReference = $isReference;

src/Lexer/Lexer.php

@@ -105,7 +105,7 @@ public function tokenize(string $s): array
 	}
 
 
-	private function initialize(): void
+	private function initialize()
 	{
 		$patterns = [
 			// '&' followed by TOKEN_VARIADIC or TOKEN_VARIABLE

src/Parser/TokenIterator.php

@@ -78,7 +78,7 @@ public function isCurrentTokenType(int $tokenType): bool
 	/**
 	 * @throws ParserException
 	 */
-	public function consumeTokenType(int $tokenType): void
+	public function consumeTokenType(int $tokenType)
 	{
 		if ($this->tokens[$this->index][Lexer::TYPE_OFFSET] !== $tokenType) {
 			$this->throwError($tokenType);
@@ -140,7 +140,7 @@ public function joinUntil(int ...$tokenType): string
 	}
 
 
-	public function next(): void
+	public function next()
 	{
 		$this->index++;
 
@@ -150,19 +150,19 @@ public function next(): void
 	}
 
 
-	public function pushSavePoint(): void
+	public function pushSavePoint()
 	{
 		$this->savePoints[] = $this->index;
 	}
 
 
-	public function dropSavePoint(): void
+	public function dropSavePoint()
 	{
 		array_pop($this->savePoints);
 	}
 
 
-	public function rollback(): void
+	public function rollback()
 	{
 		$this->index = array_pop($this->savePoints);
 	}
@@ -171,7 +171,7 @@ public function rollback(): void
 	/**
 	 * @throws ParserException
 	 */
-	private function throwError(int $expectedTokenType): void
+	private function throwError(int $expectedTokenType)
 	{
 		throw new ParserException(sprintf(
 			'Unexpected token \'%s\', expected %s at offset %d',