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diff --git a/omnitools/src/Collections/WithCollection.php b/omnitools/src/Collections/WithCollection.php
--- a/omnitools/src/Collections/WithCollection.php
+++ b/omnitools/src/Collections/WithCollection.php
@@ -2,6 +2,8 @@
namespace Keruald\OmniTools\Collections;
+use InvalidArgumentException;
+use Keruald\OmniTools\Reflection\CallableElement;
use OutOfRangeException;
trait WithCollection {
@@ -24,4 +26,74 @@
};
}
+ ///
+ /// HOF
+ ///
+
+ /**
+ * Determines if at least an element of the collection satisfies a condition.
+ *
+ * The execution of callbacks stop after a callable returned true.
+ *
+ * @param callable $callable A method returning a boolean with key and value
+ * or only value as arguments.
+ *
+ * @return bool True if callback is true for at least one of the elements
+ * @throws \ReflectionException if the callable does not exist.
+ */
+ public function any (callable $callable) : bool {
+ $argc = (new CallableElement($callable))->countArguments();
+ $items = $this->toArray();
+
+ foreach ($items as $key => $value) {
+ $result = match($argc) {
+ 0 => throw new InvalidArgumentException(self::CB_ZERO_ARG),
+ 1 => $callable($value),
+ default => $callable($key, $value),
+ };
+
+ // PHP standard or extensions functions can sometimes throw
+ // mixed result, for example true or a constant. Any other
+ // result than the boolean true is interpreted as falsy.
+ if ($result === true) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Determines if all elements of the collection satisfies a condition.
+ *
+ * The execution of callbacks stop after a callable returned false.
+ *
+ * @param callable $callable A method returning a boolean with key and value
+ * or only value as arguments.
+ *
+ * @return bool True if callback is true for all the elements
+ * @throws \ReflectionException if the callable does not exist.
+ */
+ public function all (callable $callable) : bool {
+ $argc = (new CallableElement($callable))->countArguments();
+ $items = $this->toArray();
+
+ foreach ($items as $key => $value) {
+ $result = match($argc) {
+ 0 => throw new InvalidArgumentException(self::CB_ZERO_ARG),
+ 1 => $callable($value),
+ default => $callable($key, $value),
+ };
+
+ // PHP standard or extensions functions can sometimes throw
+ // mixed result, for example true or a constant. Any other
+ // result than the boolean true is interpreted as falsy.
+ if ($result !== true) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+
}
diff --git a/omnitools/tests/Collections/HashMapTest.php b/omnitools/tests/Collections/HashMapTest.php
--- a/omnitools/tests/Collections/HashMapTest.php
+++ b/omnitools/tests/Collections/HashMapTest.php
@@ -457,6 +457,34 @@
$this->assertEquals($expected, $actual);
}
+ ///
+ /// HOF methods - WithCollection
+ ///
+
+ public function testAny () : void {
+ $author_is_Iain_Banks = fn($author) => $author === "Iain Banks";
+
+ $this->assertTrue($this->map->any($author_is_Iain_Banks));
+ }
+
+ public function testAnyWithAllFalseValues () : void {
+ $author_is_Isaac_Asimov = fn($author) => $author === "Isaac Asimov";
+
+ $this->assertFalse($this->map->any($author_is_Isaac_Asimov));
+ }
+
+ public function testAll () : void {
+ $author_contains_space = fn($author) => str_contains($author, " ");
+
+ $this->assertTrue($this->map->all($author_contains_space));
+ }
+
+ public function testAllWithFalseValue () : void {
+ $author_is_Iain_Banks = fn($author) => $author === "Iain Banks";
+
+ $this->assertFalse($this->map->all($author_is_Iain_Banks));
+ }
+
///
/// ArrayAccess
///
diff --git a/omnitools/tests/Collections/VectorTest.php b/omnitools/tests/Collections/VectorTest.php
--- a/omnitools/tests/Collections/VectorTest.php
+++ b/omnitools/tests/Collections/VectorTest.php
@@ -242,6 +242,30 @@
$this->assertEquals([0, 2, 4], array_keys($actual));
}
+ public function testAny () : void {
+ $is_even = fn(int $item) : bool => $item % 2 === 0;
+
+ $this->assertTrue($this->vector->any($is_even));
+ }
+
+ public function testAnyWithAllFalseValues () : void {
+ $is_zero = fn(int $item) : bool => $item === 0;
+
+ $this->assertFalse($this->vector->any($is_zero));
+ }
+
+ public function testAll () : void {
+ $under_ten = fn(int $item) : bool => $item < 10;
+
+ $this->assertTrue($this->vector->all($under_ten));
+ }
+
+ public function testAllWithFalseValue () : void {
+ $is_even = fn(int $item) : bool => $item % 2 === 0;
+
+ $this->assertFalse($this->vector->all($is_even));
+ }
+
public function testChunk () : void {
$vector = new Vector([1, 2, 3, 4, 5, 6]);

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