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literal-string.php
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literal-string.php
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<?php
namespace LiteralString;
use function PHPStan\Testing\assertType;
class Foo
{
/** @param literal-string $literalString */
public function doFoo($literalString, string $string)
{
assertType('literal-string', $literalString);
assertType('literal-string', $literalString . '');
assertType('literal-string', '' . $literalString);
assertType('literal-string&non-empty-string', $literalString . 'foo');
assertType('literal-string&non-empty-string', 'foo' . $literalString);
assertType('literal-string&non-empty-string', "foo ${literalString}");
assertType('literal-string&non-empty-string', "${literalString} foo");
assertType('string', $string . '');
assertType('string', '' . $string);
assertType('string', $literalString . $string);
assertType('string', $string . $literalString);
assertType('literal-string', $literalString . $literalString);
assertType('string', str_repeat($string, 10));
assertType('literal-string', str_repeat($literalString, 10));
assertType("''", str_repeat('', 10));
assertType("'foofoofoofoofoofoofoofoofoofoo'", str_repeat('foo', 10));
assertType("'?,?,?,'", str_repeat('?,', 3));
assertType('non-empty-string', str_pad($string, 5, $string));
assertType('non-empty-string', str_pad($literalString, 5, $string));
assertType('non-empty-string', str_pad($string, 5, $literalString));
assertType('literal-string&non-empty-string', str_pad($literalString, 5, $literalString));
assertType('literal-string&non-empty-string', str_pad($literalString, 5));
assertType('string', implode([$string]));
assertType('literal-string', implode([$literalString]));
assertType('string', implode($string, [$literalString]));
assertType('literal-string', implode($literalString, [$literalString]));
assertType('string', implode($literalString, [$string]));
}
/** @param literal-string $literalString */
public function increment($literalString, string $string)
{
$literalString++;
assertType('literal-string', $literalString);
$string++;
assertType('string', $string);
}
}