Argument unpacking

Zend/tests/arg_unpack/basic.phpt

@@ -0,0 +1,114 @@
+--TEST--
+Basic argument unpacking
+--FILE--
+<?php
+
+function test(...$args) {
+    var_dump($args);
+}
+
+function test2($arg1, $arg2, $arg3 = null) {
+    var_dump($arg1, $arg2, $arg3);
+}
+
+function getArray($array) {
+    return $array;
+}
+
+function arrayGen($array) {
+    foreach ($array as $element) {
+        yield $element;
+    }
+}
+
+$array = [1, 2, 3];
+
+test(...[]);
+test(...[1, 2, 3]);
+test(...$array);
+test(...getArray([1, 2, 3]));
+test(...arrayGen([]));
+test(...arrayGen([1, 2, 3]));
+
+test(1, ...[2, 3], ...[4, 5], 6);
+test(1, ...getArray([2, 3]), ...arrayGen([4, 5]), 6);
+
+test2(...[1, 2]);
+test2(...[1, 2, 3]);
+test2(...[1], ...[], ...[], ...[2, 3], 4, ...[5, 6]);
+
+?>
+--EXPECT--
+array(0) {
+}
+array(3) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  int(3)
+}
+array(3) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  int(3)
+}
+array(3) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  int(3)
+}
+array(0) {
+}
+array(3) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  int(3)
+}
+array(6) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  int(3)
+  [3]=>
+  int(4)
+  [4]=>
+  int(5)
+  [5]=>
+  int(6)
+}
+array(6) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  int(3)
+  [3]=>
+  int(4)
+  [4]=>
+  int(5)
+  [5]=>
+  int(6)
+}
+int(1)
+int(2)
+NULL
+int(1)
+int(2)
+int(3)
+int(1)
+int(2)
+int(3)

Zend/tests/arg_unpack/by_ref.phpt

@@ -0,0 +1,149 @@
+--TEST--
+Argument unpacking with by-ref arguments
+--FILE--
+<?php
+
+error_reporting(E_ALL);
+
+function test1(&...$args) {
+    foreach ($args as &$arg) {
+        $arg++;
+    }
+}
+
+test1(...[1, 2, 3]);
+
+$array = [1, 2, 3];
+test1(...$array);
+var_dump($array);
+
+$array1 = [1, 2]; $val2 = 3; $array2 = [4, 5];
+test1(...$array1, $val2, ...$array2);
+var_dump($array1, $val2, $array2);
+
+function test2($val1, &$ref1, $val2, &$ref2) {
+    $ref1++;
+    $ref2++;
+}
+
+$array = [1, 2, 3, 4];
+test2(...$array);
+var_dump($array);
+
+$a = $b = $c = $d = 0;
+
+$array = [];
+test2(...$array, $a, $b, $c, $d);
+var_dump($array, $a, $b, $c, $d);
+
+$array = [1];
+test2(...$array, $a, $b, $c, $d);
+var_dump($array, $a, $b, $c, $d);
+
+$array = [1, 2];
+test2(...$array, $a, $b, $c, $d);
+var_dump($array, $a, $b, $c, $d);
+
+$array = [1, 2, 3];
+test2(...$array, $a, $b, $c, $d);
+var_dump($array, $a, $b, $c, $d);
+
+$vars = [];
+$array = [];
+test2(...$array, $vars['a'], $vars['b'], $vars['c'], $vars['d']);
+var_dump($vars);
+
+$vars = [];
+$array = [1];
+test2(...$array, $vars['a'], $vars['b'], $vars['c'], $vars['d']);
+var_dump($vars);
+
+?>
+--EXPECTF--
+array(3) {
+  [0]=>
+  int(2)
+  [1]=>
+  int(3)
+  [2]=>
+  int(4)
+}
+array(2) {
+  [0]=>
+  int(2)
+  [1]=>
+  int(3)
+}
+int(4)
+array(2) {
+  [0]=>
+  int(5)
+  [1]=>
+  int(6)
+}
+array(4) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(3)
+  [2]=>
+  int(3)
+  [3]=>
+  int(5)
+}
+array(0) {
+}
+int(0)
+int(1)
+int(0)
+int(1)
+array(1) {
+  [0]=>
+  int(1)
+}
+int(1)
+int(1)
+int(1)
+int(1)
+array(2) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(3)
+}
+int(1)
+int(2)
+int(1)
+int(1)
+array(3) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(3)
+  [2]=>
+  int(3)
+}
+int(2)
+int(2)
+int(1)
+int(1)
+
+Notice: Undefined index: a in %s on line %d
+
+Notice: Undefined index: c in %s on line %d
+array(2) {
+  ["b"]=>
+  int(1)
+  ["d"]=>
+  int(1)
+}
+
+Notice: Undefined index: b in %s on line %d
+
+Notice: Undefined index: d in %s on line %d
+array(2) {
+  ["a"]=>
+  int(1)
+  ["c"]=>
+  int(1)
+}

Zend/tests/arg_unpack/dynamic.phpt

@@ -0,0 +1,37 @@
+--TEST--
+Unpack arguments for dynamic call
+--FILE--
+<?php
+
+$fn = function(...$args) {
+    var_dump($args);
+};
+
+$fn(...[]);
+$fn(...[1, 2, 3]);
+$fn(1, ...[2, 3], ...[], 4, 5);
+
+?>
+--EXPECT--
+array(0) {
+}
+array(3) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  int(3)
+}
+array(5) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  int(3)
+  [3]=>
+  int(4)
+  [4]=>
+  int(5)
+}

Zend/tests/arg_unpack/internal.phpt

@@ -0,0 +1,43 @@
+--TEST--
+Argument unpacking with internal functions
+--FILE--
+<?php
+
+$arrays = [
+    [1, 2, 3],
+    [4, 5, 6],
+    [7, 8, 9],
+];
+var_dump(array_map(null, ...$arrays));
+
+?>
+--EXPECT--
+array(3) {
+  [0]=>
+  array(3) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(4)
+    [2]=>
+    int(7)
+  }
+  [1]=>
+  array(3) {
+    [0]=>
+    int(2)
+    [1]=>
+    int(5)
+    [2]=>
+    int(8)
+  }
+  [2]=>
+  array(3) {
+    [0]=>
+    int(3)
+    [1]=>
+    int(6)
+    [2]=>
+    int(9)
+  }
+}