Fix or/and expressions

src/Interpreter/LuarExpressionVisitor.php

@@ -249,19 +249,23 @@ public function visitExpPower(Context\ExpPowerContext $context): LuarObject {
 	}
 
 	public function visitExpOr(Context\ExpOrContext $context): LuarObject {
-		$v1 = $this->visitExp($context->exp(0))->getValue();
-		if ($v1) return new Literal($v1);
-		$v2 = $this->visitExp($context->exp(1))->getValue();
-		if ($v2) return new Literal($v2);
-		return new Literal(false);
+		$o1 = $this->visitExp($context->exp(0));
+		$o2 = $this->visitExp($context->exp(1));
+
+		if ($this->isTrue($o1->getValue())) return $o1;
+		if ($this->isTrue($o2->getValue())) return $o2;
+
+		return new Literal(null);
 	}
 
 	public function visitExpAnd(Context\ExpAndContext $context): LuarObject {
-		$v1 = $this->visitExp($context->exp(0))->getValue();
-		if (!$v1) return new Literal(false);
-		$v2 = $this->visitExp($context->exp(1))->getValue();
-		if (!$v2) return new Literal(false);
-		return new Literal(true);
+		$o1 = $this->visitExp($context->exp(0));
+		$o2 = $this->visitExp($context->exp(1));
+
+		if (!$this->isTrue($o1->getValue())) return new Literal(null);
+		if (!$this->isTrue($o2->getValue())) return new Literal(null);
+
+		return $o2;
 	}
 
 	public function visitExpConcat(Context\ExpConcatContext $context): LuarObject {

src/Interpreter/LuarStatementVisitor.php

@@ -221,7 +221,6 @@ public function visitStatRepeat(Context\StatRepeatContext $context) {
 			throw new LuarRuntimeException('[INTERNAL ERROR] Could not parse while loop', $context);
 		}
 
-
 		do {
 			$newScope = new Scope($this->interpreter->getScope());
 			$newScope->setExpectedExit(Scope::EXIT_EXPECT_BREAK_CONTINUE);