Validators: support for types int[], string[] etc [Closes #119]

Author: dg

src/Utils/Validators.php

@@ -121,6 +121,13 @@ public static function assertField($arr, $field, $expected = NULL, $label = "ite
 	public static function is($value, $expected)
 	{
 		foreach (explode('|', $expected) as $item) {
+			if (substr($item, -2) === '[]') {
+				if (self::everyIs($value, substr($item, 0, -2))) {
+					return TRUE;
+				}
+				continue;
+			}
+
 			list($type) = $item = explode(':', $item, 2);
 			if (isset(static::$validators[$type])) {
 				if (!call_user_func(static::$validators[$type], $value)) {

tests/Utils/Validators.is().phpt

@@ -330,3 +330,29 @@ test(function () {
 	Assert::false(Validators::is(3.14, 'iterable'));
 	Assert::false(Validators::is(new stdClass(), 'iterable'));
 });
+
+
+test(function () {
+	class Abc {}
+
+	Assert::true(Validators::is([], 'int[]'));
+	Assert::true(Validators::is(new ArrayIterator([]), 'int[]'));
+	Assert::false(Validators::is(1, 'int[]'));
+	Assert::false(Validators::is(2.15, 'int[]'));
+	Assert::true(Validators::is(2.15, 'float|int[]'));
+	Assert::true(Validators::is(2.15, 'int[]|float'));
+	Assert::true(Validators::is([1, 2, 3], 'int[]'));
+	Assert::false(Validators::is([1, 2, 3], 'int[][]'));
+	Assert::true(Validators::is([[1], [2, 3]], 'int[][]'));
+	Assert::false(Validators::is([1, 2.15, 3], 'int[]'));
+	Assert::true(Validators::is([1, 2.15, 3], 'number[]'));
+
+	Assert::true(Validators::is([new Abc], 'Abc[]'));
+	Assert::false(Validators::is([new Abc, new stdClass], 'Abc[]'));
+
+	Assert::true(Validators::is(['ABCD', 'EFGH', 'IJKL'], 'string:4[]'));
+	Assert::false(Validators::is(['ABCD', 'EFGH', 'IJKLM'], 'string:4[]'));
+
+	Assert::true(Validators::is([['ABCD', 'EFGH'], ['IJKL']], 'string:4[][]'));
+	Assert::false(Validators::is([['ABCD', 'EFGH'], ['IJKLM']], 'string:4[][]'));
+});