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Merge pull request #8619 from kkmuffme/keep-literal-string-for-simple-str_replace

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keep literal string for simple str_replace
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orklah 2022-10-27 10:24:16 +02:00 committed by GitHub
commit 7c83878ae0
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2 changed files with 24 additions and 1 deletions
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23
src/Psalm/Internal/Provider/ReturnTypeProvider/StrReplaceReturnTypeProvider.php
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@ -10,6 +10,7 @@ use Psalm\Type\Atomic\TNull;
use Psalm\Type\Atomic\TString; use Psalm\Type\Atomic\TString;
use Psalm\Type\Union; use Psalm\Type\Union;
use function call_user_func;
use function count; use function count;
use function in_array; use function in_array;
@ -50,7 +51,27 @@ class StrReplaceReturnTypeProvider implements FunctionReturnTypeProviderInterfac
$return_type = Type::getString(); $return_type = Type::getString();
if (in_array($function_id, ['preg_replace', 'preg_replace_callback'], true)) { if (in_array($function_id, ['str_replace', 'str_ireplace'], true)
&& $subject_type->isSingleStringLiteral()
) {
$first_arg = $statements_source->node_data->getType($call_args[0]->value);
$second_arg = $statements_source->node_data->getType($call_args[1]->value);
if ($first_arg
&& $second_arg && $first_arg->isSingleStringLiteral()
&& $second_arg->isSingleStringLiteral()
) {
/**
* @var string $replaced_string
*/
$replaced_string = call_user_func(
$function_id,
$first_arg->getSingleStringLiteral()->value,
$second_arg->getSingleStringLiteral()->value,
$subject_type->getSingleStringLiteral()->value
);
$return_type = Type::getString($replaced_string);
}
} elseif (in_array($function_id, ['preg_replace', 'preg_replace_callback'], true)) {
$return_type = new Union([new TString, new TNull()]); $return_type = new Union([new TString, new TNull()]);
$codebase = $statements_source->getCodebase(); $codebase = $statements_source->getCodebase();

2
tests/ReturnTypeProvider/DirnameTest.php
View File

@ -5,6 +5,8 @@ namespace Psalm\Tests\ReturnTypeProvider;
use Psalm\Tests\TestCase; use Psalm\Tests\TestCase;
use Psalm\Tests\Traits\ValidCodeAnalysisTestTrait; use Psalm\Tests\Traits\ValidCodeAnalysisTestTrait;
use function addslashes;
use const DIRECTORY_SEPARATOR; use const DIRECTORY_SEPARATOR;
class DirnameTest extends TestCase class DirnameTest extends TestCase