Fix #1

README.md

@@ -19,7 +19,7 @@ like you would with [geth's abigen](https://geth.ethereum.org/docs/tools/abigen)
 Just use Composer. Install the beta version for now.
 
 ```shell
-composer require m8b/ether-binder:v0.1.5-beta
+composer require m8b/ether-binder:v0.1.6-beta
 ```
 
 ## 📖 Documentation

src/Contract/ABIGen.php

@@ -674,7 +674,7 @@ protected function buildMethodParams(string $fnName, array $inputs, BuilderFacto
 				}
 				$validators [] = new Assign(
 					$bld->var($name),
-					$bld->methodCall($bld->var("this"), $arr ? "expectIntArrOfSize" : "expectIntOfSize", [
+					$bld->staticCall("self", $arr ? "expectIntArrOfSize" : "expectIntOfSize", [
 						$bld->val($type[0] === "u"),
 						$bld->var($name),
 						$bld->val($bitsCount)])

src/Contract/AbstractContract.php

@@ -343,7 +343,7 @@ protected function mkPayableTxn(string $signature, OOGmp $value, array $params):
 	/**
 	 * @throws EthBinderArgumentException
 	 */
-	protected function expectBinarySizeNormalizeString(string $binOrHex, int $length): string
+	protected static function expectBinarySizeNormalizeString(string $binOrHex, int $length): string
 	{
 		if($length == 0 && str_starts_with($binOrHex, "0x") && ctype_xdigit(substr($binOrHex, 2)))
 			return hex2bin(substr($binOrHex, 2));
@@ -361,7 +361,7 @@ protected function expectBinarySizeNormalizeString(string $binOrHex, int $length
 	/**
 	 * @throws EthBinderArgumentException
 	 */
-	protected function expectIntOfSize(bool $unsigned, int|OOGmp $value, int $bits): OOGmp
+	protected static function expectIntOfSize(bool $unsigned, int|OOGmp $value, int $bits): OOGmp
 	{
 		if(is_int($value))
 			$value = new OOGmp($value);
@@ -380,7 +380,7 @@ protected function expectIntOfSize(bool $unsigned, int|OOGmp $value, int $bits):
 	/**
 	 * @throws EthBinderArgumentException
 	 */
-	protected function expectIntArrOfSize(bool $unsigned, array $value, int $bits): array
+	protected static function expectIntArrOfSize(bool $unsigned, array $value, int $bits): array
 	{
 		$o = [];
 		foreach($value AS $itm) {