2018-01-29 00:29:38 +01:00
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<?php
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2018-11-06 03:57:36 +01:00
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namespace Psalm\Internal\Analyzer\Statements\Expression\Call;
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2018-01-29 00:29:38 +01:00
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use PhpParser;
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2018-11-06 03:57:36 +01:00
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use Psalm\Internal\Analyzer\ClassAnalyzer;
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use Psalm\Internal\Analyzer\ClassLikeAnalyzer;
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2019-05-14 23:30:16 +02:00
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use Psalm\Internal\Analyzer\NamespaceAnalyzer;
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2018-11-06 03:57:36 +01:00
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use Psalm\Internal\Analyzer\Statements\ExpressionAnalyzer;
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use Psalm\Internal\Analyzer\StatementsAnalyzer;
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2020-10-13 22:49:03 +02:00
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use Psalm\Internal\DataFlow\DataFlowNode;
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2020-09-30 18:28:13 +02:00
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use Psalm\Internal\Codebase\TaintFlowGraph;
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2018-01-29 00:29:38 +01:00
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use Psalm\CodeLocation;
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use Psalm\Context;
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use Psalm\Issue\AbstractInstantiation;
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use Psalm\Issue\DeprecatedClass;
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2019-07-18 07:31:48 +02:00
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use Psalm\Issue\ImpureMethodCall;
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2018-02-18 00:53:02 +01:00
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use Psalm\Issue\InterfaceInstantiation;
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2018-12-02 00:37:49 +01:00
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use Psalm\Issue\InternalClass;
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2018-03-06 18:19:50 +01:00
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use Psalm\Issue\InvalidStringClass;
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2019-01-02 12:58:49 +01:00
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use Psalm\Issue\MixedMethodCall;
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2018-01-29 00:29:38 +01:00
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use Psalm\Issue\TooManyArguments;
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2020-08-06 01:39:27 +02:00
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use Psalm\Issue\UnsafeInstantiation;
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2018-03-06 18:19:50 +01:00
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use Psalm\Issue\UndefinedClass;
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2018-01-29 00:29:38 +01:00
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use Psalm\IssueBuffer;
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use Psalm\Type;
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use Psalm\Type\Atomic\TNamedObject;
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2019-06-26 22:52:29 +02:00
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use function in_array;
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use function strtolower;
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use function implode;
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use function array_values;
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2020-11-27 17:43:23 +01:00
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use function array_map;
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2021-02-26 03:24:18 +01:00
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use function reset;
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2018-01-29 00:29:38 +01:00
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2018-12-02 00:37:49 +01:00
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/**
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* @internal
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*/
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2018-11-06 03:57:36 +01:00
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class NewAnalyzer extends \Psalm\Internal\Analyzer\Statements\Expression\CallAnalyzer
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2018-01-29 00:29:38 +01:00
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{
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public static function analyze(
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2018-11-11 18:01:14 +01:00
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StatementsAnalyzer $statements_analyzer,
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2018-01-29 00:29:38 +01:00
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PhpParser\Node\Expr\New_ $stmt,
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Context $context
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2020-05-18 21:13:27 +02:00
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) : bool {
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2018-01-29 00:29:38 +01:00
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$fq_class_name = null;
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2018-11-11 18:01:14 +01:00
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$codebase = $statements_analyzer->getCodebase();
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2018-11-06 03:57:36 +01:00
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$config = $codebase->config;
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2018-01-29 00:29:38 +01:00
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2019-01-04 18:28:00 +01:00
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$can_extend = false;
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2018-01-29 00:29:38 +01:00
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2020-03-24 23:00:20 +01:00
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$from_static = false;
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2018-01-29 00:29:38 +01:00
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if ($stmt->class instanceof PhpParser\Node\Name) {
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if (!in_array(strtolower($stmt->class->parts[0]), ['self', 'static', 'parent'], true)) {
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2018-11-11 18:01:14 +01:00
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$aliases = $statements_analyzer->getAliases();
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2018-10-27 05:04:38 +02:00
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2020-03-26 17:35:27 +01:00
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if ($context->calling_method_id
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2018-10-27 05:04:38 +02:00
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&& !$stmt->class instanceof PhpParser\Node\Name\FullyQualified
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) {
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2019-04-16 22:07:48 +02:00
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$codebase->file_reference_provider->addMethodReferenceToClassMember(
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2020-03-26 17:35:27 +01:00
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$context->calling_method_id,
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2018-11-11 18:01:14 +01:00
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'use:' . $stmt->class->parts[0] . ':' . \md5($statements_analyzer->getFilePath())
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2018-10-27 05:04:38 +02:00
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);
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}
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2018-11-06 03:57:36 +01:00
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$fq_class_name = ClassLikeAnalyzer::getFQCLNFromNameObject(
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2018-01-29 00:29:38 +01:00
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$stmt->class,
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2018-10-27 05:04:38 +02:00
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$aliases
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2018-01-29 00:29:38 +01:00
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);
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2018-11-29 06:05:56 +01:00
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$fq_class_name = $codebase->classlikes->getUnAliasedName($fq_class_name);
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2020-02-15 02:54:26 +01:00
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} elseif ($context->self !== null) {
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2018-01-29 00:29:38 +01:00
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switch ($stmt->class->parts[0]) {
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case 'self':
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2020-02-15 02:54:26 +01:00
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$class_storage = $codebase->classlike_storage_provider->get($context->self);
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$fq_class_name = $class_storage->name;
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2018-01-29 00:29:38 +01:00
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break;
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case 'parent':
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$fq_class_name = $context->parent;
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break;
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case 'static':
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// @todo maybe we can do better here
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2020-02-15 02:54:26 +01:00
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$class_storage = $codebase->classlike_storage_provider->get($context->self);
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$fq_class_name = $class_storage->name;
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2020-08-18 17:25:11 +02:00
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if (!$class_storage->final) {
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$can_extend = true;
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$from_static = true;
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}
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2018-01-29 00:29:38 +01:00
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break;
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}
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}
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2018-10-26 22:17:15 +02:00
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2019-07-01 15:55:39 +02:00
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if ($codebase->store_node_types
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&& $fq_class_name
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&& !$context->collect_initializations
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&& !$context->collect_mutations
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) {
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2018-10-26 22:17:15 +02:00
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$codebase->analyzer->addNodeReference(
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2018-11-11 18:01:14 +01:00
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$statements_analyzer->getFilePath(),
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2018-10-26 22:17:15 +02:00
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$stmt->class,
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2019-06-21 23:10:35 +02:00
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$codebase->classlikes->classExists($fq_class_name)
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? $fq_class_name
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2021-02-15 05:25:13 +01:00
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: '*'
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. ($stmt->class instanceof PhpParser\Node\Name\FullyQualified
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? '\\'
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: $statements_analyzer->getNamespace() . '-')
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. implode('\\', $stmt->class->parts)
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2018-10-26 22:17:15 +02:00
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);
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}
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2018-01-29 00:29:38 +01:00
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} elseif ($stmt->class instanceof PhpParser\Node\Stmt\Class_) {
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2018-11-11 18:01:14 +01:00
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$statements_analyzer->analyze([$stmt->class], $context);
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$fq_class_name = ClassAnalyzer::getAnonymousClassName($stmt->class, $statements_analyzer->getFilePath());
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2018-01-29 00:29:38 +01:00
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} else {
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2020-11-30 19:24:24 +01:00
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self::analyzeConstructorExpression(
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$statements_analyzer,
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$codebase,
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$context,
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$stmt,
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$stmt->class,
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$config,
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$fq_class_name,
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$can_extend
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);
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2018-01-29 00:29:38 +01:00
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}
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if ($fq_class_name) {
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2019-11-15 22:50:43 +01:00
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if ($codebase->alter_code
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&& $stmt->class instanceof PhpParser\Node\Name
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&& !in_array($stmt->class->parts[0], ['parent', 'static'])
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) {
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2019-06-04 22:36:32 +02:00
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$codebase->classlikes->handleClassLikeReferenceInMigration(
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$codebase,
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$statements_analyzer,
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$stmt->class,
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2019-06-01 16:32:49 +02:00
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$fq_class_name,
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2020-03-26 17:35:27 +01:00
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$context->calling_method_id
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2019-06-01 16:32:49 +02:00
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);
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}
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2019-01-02 12:58:49 +01:00
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if ($context->check_classes) {
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if ($context->isPhantomClass($fq_class_name)) {
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2020-05-19 04:57:00 +02:00
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ArgumentsAnalyzer::analyze(
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2020-05-03 04:13:59 +02:00
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$statements_analyzer,
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$stmt->args,
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null,
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null,
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2020-10-03 02:58:51 +02:00
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true,
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2020-05-03 04:13:59 +02:00
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$context
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);
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2020-05-18 21:13:27 +02:00
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return true;
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2019-01-02 12:58:49 +01:00
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}
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if (ClassLikeAnalyzer::checkFullyQualifiedClassLikeName(
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$statements_analyzer,
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$fq_class_name,
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new CodeLocation($statements_analyzer->getSource(), $stmt->class),
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2020-02-11 22:39:33 +01:00
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$context->self,
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2020-03-26 17:35:27 +01:00
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$context->calling_method_id,
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2019-01-02 12:58:49 +01:00
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$statements_analyzer->getSuppressedIssues(),
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false
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) === false) {
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2020-05-19 04:57:00 +02:00
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ArgumentsAnalyzer::analyze(
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2020-05-03 04:13:59 +02:00
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$statements_analyzer,
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$stmt->args,
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null,
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null,
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2020-10-03 02:58:51 +02:00
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true,
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2020-05-03 04:13:59 +02:00
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$context
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);
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2020-05-18 21:13:27 +02:00
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return true;
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2019-01-02 12:58:49 +01:00
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}
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if ($codebase->interfaceExists($fq_class_name)) {
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if (IssueBuffer::accepts(
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new InterfaceInstantiation(
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'Interface ' . $fq_class_name . ' cannot be instantiated',
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new CodeLocation($statements_analyzer->getSource(), $stmt->class)
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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}
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2020-05-18 21:13:27 +02:00
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return true;
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2019-01-02 12:58:49 +01:00
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}
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}
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2020-03-24 23:00:20 +01:00
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if ($stmt->class instanceof PhpParser\Node\Stmt\Class_) {
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2021-02-04 15:59:38 +01:00
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$extends = $stmt->class->extends ? (string) $stmt->class->extends : null;
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$result_atomic_type = new Type\Atomic\TAnonymousClassInstance($fq_class_name, false, $extends);
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2020-03-24 23:00:20 +01:00
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} else {
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$result_atomic_type = new TNamedObject($fq_class_name);
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$result_atomic_type->was_static = $from_static;
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}
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2019-12-31 14:46:52 +01:00
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$statements_analyzer->node_data->setType(
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$stmt,
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2020-03-24 23:00:20 +01:00
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new Type\Union([$result_atomic_type])
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2019-12-31 14:46:52 +01:00
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);
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2018-01-29 00:29:38 +01:00
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if (strtolower($fq_class_name) !== 'stdclass' &&
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2018-02-18 00:53:02 +01:00
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$codebase->classlikes->classExists($fq_class_name)
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2018-01-29 00:29:38 +01:00
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) {
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2020-11-30 19:24:24 +01:00
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self::analyzeNamedConstructor(
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$statements_analyzer,
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$codebase,
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$stmt,
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$context,
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$fq_class_name,
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$from_static,
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$can_extend
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);
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} else {
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ArgumentsAnalyzer::analyze(
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$statements_analyzer,
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$stmt->args,
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null,
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null,
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true,
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$context
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);
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}
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}
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2018-01-29 00:29:38 +01:00
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2020-11-30 19:24:24 +01:00
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if (!$config->remember_property_assignments_after_call && !$context->collect_initializations) {
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2020-12-08 22:39:06 +01:00
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$context->removeMutableObjectVars();
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2020-11-30 19:24:24 +01:00
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}
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2020-08-06 01:39:27 +02:00
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2020-11-30 19:24:24 +01:00
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return true;
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}
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2018-01-29 00:29:38 +01:00
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2020-11-30 19:24:24 +01:00
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private static function analyzeNamedConstructor(
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StatementsAnalyzer $statements_analyzer,
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\Psalm\Codebase $codebase,
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PhpParser\Node\Expr\New_ $stmt,
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Context $context,
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string $fq_class_name,
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bool $from_static,
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bool $can_extend
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): void {
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$storage = $codebase->classlike_storage_provider->get($fq_class_name);
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if ($from_static && !$storage->preserve_constructor_signature) {
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if (IssueBuffer::accepts(
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new UnsafeInstantiation(
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'Cannot safely instantiate class ' . $fq_class_name . ' with "new static" as'
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. ' its constructor might change in child classes',
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new CodeLocation($statements_analyzer->getSource(), $stmt)
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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// fall through
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}
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}
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2018-01-29 00:29:38 +01:00
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2020-11-30 19:24:24 +01:00
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// if we're not calling this constructor via new static()
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if ($storage->abstract && !$can_extend) {
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if (IssueBuffer::accepts(
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new AbstractInstantiation(
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'Unable to instantiate a abstract class ' . $fq_class_name,
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new CodeLocation($statements_analyzer->getSource(), $stmt)
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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return;
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}
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}
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2019-05-11 16:23:49 +02:00
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2020-11-30 19:24:24 +01:00
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if ($storage->deprecated && strtolower($fq_class_name) !== strtolower((string)$context->self)) {
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if (IssueBuffer::accepts(
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new DeprecatedClass(
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$fq_class_name . ' is marked deprecated',
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new CodeLocation($statements_analyzer->getSource(), $stmt),
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$fq_class_name
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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// fall through
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}
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}
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2018-12-02 00:37:49 +01:00
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2020-02-15 02:54:26 +01:00
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2020-11-30 19:24:24 +01:00
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if ($context->self
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&& !$context->collect_initializations
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&& !$context->collect_mutations
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&& !NamespaceAnalyzer::isWithin($context->self, $storage->internal)
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) {
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if (IssueBuffer::accepts(
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new InternalClass(
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$fq_class_name . ' is internal to ' . $storage->internal
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. ' but called from ' . $context->self,
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new CodeLocation($statements_analyzer->getSource(), $stmt),
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$fq_class_name
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),
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|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
$method_id = new \Psalm\Internal\MethodIdentifier($fq_class_name, '__construct');
|
|
|
|
|
|
|
|
if ($codebase->methods->methodExists(
|
|
|
|
$method_id,
|
|
|
|
$context->calling_method_id,
|
|
|
|
$codebase->collect_locations ? new CodeLocation($statements_analyzer->getSource(), $stmt) : null,
|
|
|
|
$statements_analyzer,
|
|
|
|
$statements_analyzer->getFilePath()
|
|
|
|
)) {
|
|
|
|
if ($codebase->store_node_types
|
|
|
|
&& !$context->collect_initializations
|
|
|
|
&& !$context->collect_mutations
|
|
|
|
) {
|
|
|
|
ArgumentMapPopulator::recordArgumentPositions(
|
2020-03-06 19:02:34 +01:00
|
|
|
$statements_analyzer,
|
2020-11-30 19:24:24 +01:00
|
|
|
$stmt,
|
|
|
|
$codebase,
|
|
|
|
(string)$method_id
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
$template_result = new \Psalm\Internal\Type\TemplateResult([], []);
|
|
|
|
|
|
|
|
if (self::checkMethodArgs(
|
|
|
|
$method_id,
|
|
|
|
$stmt->args,
|
|
|
|
$template_result,
|
|
|
|
$context,
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt),
|
|
|
|
$statements_analyzer
|
|
|
|
) === false) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (Method\MethodVisibilityAnalyzer::analyze(
|
|
|
|
$method_id,
|
|
|
|
$context,
|
|
|
|
$statements_analyzer->getSource(),
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt),
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
) === false) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
$declaring_method_id = $codebase->methods->getDeclaringMethodId($method_id);
|
|
|
|
|
|
|
|
if ($declaring_method_id) {
|
|
|
|
$method_storage = $codebase->methods->getStorage($declaring_method_id);
|
|
|
|
|
|
|
|
if (!$method_storage->external_mutation_free && !$context->inside_throw) {
|
|
|
|
if ($context->pure) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new ImpureMethodCall(
|
|
|
|
'Cannot call an impure constructor from a pure context',
|
|
|
|
new CodeLocation($statements_analyzer, $stmt)
|
|
|
|
),
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
|
|
|
}
|
|
|
|
} elseif ($statements_analyzer->getSource()
|
|
|
|
instanceof \Psalm\Internal\Analyzer\FunctionLikeAnalyzer
|
|
|
|
&& $statements_analyzer->getSource()->track_mutations
|
2019-07-01 21:54:33 +02:00
|
|
|
) {
|
2020-11-30 19:24:24 +01:00
|
|
|
$statements_analyzer->getSource()->inferred_has_mutation = true;
|
|
|
|
$statements_analyzer->getSource()->inferred_impure = true;
|
2019-07-01 21:54:33 +02:00
|
|
|
}
|
2020-11-30 19:24:24 +01:00
|
|
|
}
|
2019-07-01 21:54:33 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
$generic_params = $template_result->upper_bounds;
|
2019-11-04 03:27:40 +01:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($method_storage->assertions && $stmt->class instanceof PhpParser\Node\Name) {
|
|
|
|
self::applyAssertionsToContext(
|
|
|
|
$stmt->class,
|
|
|
|
null,
|
|
|
|
$method_storage->assertions,
|
2018-01-29 00:29:38 +01:00
|
|
|
$stmt->args,
|
2020-11-30 19:24:24 +01:00
|
|
|
$generic_params,
|
2018-01-29 00:29:38 +01:00
|
|
|
$context,
|
2018-11-11 18:01:14 +01:00
|
|
|
$statements_analyzer
|
2020-11-30 19:24:24 +01:00
|
|
|
);
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($method_storage->if_true_assertions) {
|
|
|
|
$statements_analyzer->node_data->setIfTrueAssertions(
|
|
|
|
$stmt,
|
|
|
|
\array_map(
|
|
|
|
function ($assertion) use ($generic_params) {
|
|
|
|
return $assertion->getUntemplatedCopy($generic_params, null);
|
|
|
|
},
|
|
|
|
$method_storage->if_true_assertions
|
|
|
|
)
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($method_storage->if_false_assertions) {
|
|
|
|
$statements_analyzer->node_data->setIfFalseAssertions(
|
|
|
|
$stmt,
|
|
|
|
\array_map(
|
|
|
|
function ($assertion) use ($generic_params) {
|
|
|
|
return $assertion->getUntemplatedCopy($generic_params, null);
|
|
|
|
},
|
|
|
|
$method_storage->if_false_assertions
|
|
|
|
)
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
$generic_param_types = null;
|
|
|
|
|
|
|
|
if ($storage->template_types) {
|
|
|
|
foreach ($storage->template_types as $template_name => $base_type) {
|
|
|
|
if (isset($template_result->upper_bounds[$template_name][$fq_class_name])) {
|
|
|
|
$generic_param_type
|
|
|
|
= $template_result->upper_bounds[$template_name][$fq_class_name]->type;
|
|
|
|
} elseif ($storage->template_extended_params && $template_result->upper_bounds) {
|
|
|
|
$generic_param_type = self::getGenericParamForOffset(
|
2021-02-13 22:16:58 +01:00
|
|
|
$fq_class_name,
|
2020-11-30 19:24:24 +01:00
|
|
|
$template_name,
|
|
|
|
$storage->template_extended_params,
|
|
|
|
array_map(
|
|
|
|
function ($type_map) {
|
|
|
|
return array_map(
|
|
|
|
function ($bound) {
|
|
|
|
return $bound->type;
|
|
|
|
},
|
|
|
|
$type_map
|
|
|
|
);
|
|
|
|
},
|
|
|
|
$template_result->upper_bounds
|
|
|
|
)
|
|
|
|
);
|
|
|
|
} else {
|
|
|
|
if ($fq_class_name === 'SplObjectStorage') {
|
|
|
|
$generic_param_type = Type::getEmpty();
|
|
|
|
} else {
|
2021-03-13 20:12:55 +01:00
|
|
|
$generic_param_type = clone array_values($base_type)[0];
|
2020-11-30 19:24:24 +01:00
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
}
|
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
$generic_param_type->had_template = true;
|
2019-07-18 07:31:48 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
$generic_param_types[] = $generic_param_type;
|
|
|
|
}
|
|
|
|
}
|
2019-07-18 07:31:48 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($generic_param_types) {
|
|
|
|
$result_atomic_type = new Type\Atomic\TGenericObject(
|
|
|
|
$fq_class_name,
|
|
|
|
$generic_param_types
|
|
|
|
);
|
2020-11-06 17:55:19 +01:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
$result_atomic_type->was_static = $from_static;
|
2020-11-06 17:55:19 +01:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
$statements_analyzer->node_data->setType(
|
|
|
|
$stmt,
|
|
|
|
new Type\Union([$result_atomic_type])
|
|
|
|
);
|
|
|
|
}
|
|
|
|
} elseif ($stmt->args) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new TooManyArguments(
|
|
|
|
'Class ' . $fq_class_name . ' has no __construct, but arguments were passed',
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt),
|
|
|
|
$fq_class_name . '::__construct'
|
|
|
|
),
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
|
|
|
}
|
2021-02-26 03:20:05 +01:00
|
|
|
} elseif ($storage->template_types) {
|
|
|
|
$result_atomic_type = new Type\Atomic\TGenericObject(
|
|
|
|
$fq_class_name,
|
|
|
|
array_values(
|
|
|
|
array_map(
|
2021-02-26 03:24:18 +01:00
|
|
|
function ($map) {
|
2021-02-26 03:20:05 +01:00
|
|
|
return clone reset($map);
|
|
|
|
},
|
|
|
|
$storage->template_types
|
|
|
|
)
|
|
|
|
)
|
|
|
|
);
|
|
|
|
|
|
|
|
$result_atomic_type->was_static = $from_static;
|
|
|
|
|
|
|
|
$statements_analyzer->node_data->setType(
|
|
|
|
$stmt,
|
|
|
|
new Type\Union([$result_atomic_type])
|
|
|
|
);
|
2020-11-30 19:24:24 +01:00
|
|
|
}
|
2020-11-06 17:55:19 +01:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($storage->external_mutation_free) {
|
|
|
|
/** @psalm-suppress UndefinedPropertyAssignment */
|
|
|
|
$stmt->external_mutation_free = true;
|
|
|
|
$stmt_type = $statements_analyzer->node_data->getType($stmt);
|
2019-07-18 07:31:48 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($stmt_type) {
|
|
|
|
$stmt_type->reference_free = true;
|
|
|
|
}
|
|
|
|
}
|
2019-07-09 20:48:19 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($statements_analyzer->data_flow_graph instanceof TaintFlowGraph
|
|
|
|
&& !\in_array('TaintedInput', $statements_analyzer->getSuppressedIssues())
|
|
|
|
&& ($stmt_type = $statements_analyzer->node_data->getType($stmt))
|
|
|
|
) {
|
|
|
|
$code_location = new CodeLocation($statements_analyzer->getSource(), $stmt);
|
2019-07-09 20:48:19 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
$method_storage = null;
|
|
|
|
|
|
|
|
$declaring_method_id = $codebase->methods->getDeclaringMethodId($method_id);
|
|
|
|
|
|
|
|
if ($declaring_method_id) {
|
|
|
|
$method_storage = $codebase->methods->getStorage($declaring_method_id);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($storage->external_mutation_free
|
|
|
|
|| ($method_storage && $method_storage->specialize_call)
|
|
|
|
) {
|
|
|
|
$method_source = DataFlowNode::getForMethodReturn(
|
|
|
|
(string)$method_id,
|
|
|
|
$fq_class_name . '::__construct',
|
|
|
|
$storage->location,
|
|
|
|
$code_location
|
|
|
|
);
|
|
|
|
} else {
|
|
|
|
$method_source = DataFlowNode::getForMethodReturn(
|
|
|
|
(string)$method_id,
|
|
|
|
$fq_class_name . '::__construct',
|
|
|
|
$storage->location
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
$statements_analyzer->data_flow_graph->addNode($method_source);
|
|
|
|
|
|
|
|
$stmt_type->parent_nodes = [$method_source->id => $method_source];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
private static function analyzeConstructorExpression(
|
|
|
|
StatementsAnalyzer $statements_analyzer,
|
|
|
|
\Psalm\Codebase $codebase,
|
|
|
|
Context $context,
|
|
|
|
PhpParser\Node\Expr\New_ $stmt,
|
|
|
|
PhpParser\Node\Expr $stmt_class,
|
|
|
|
\Psalm\Config $config,
|
|
|
|
?string &$fq_class_name,
|
|
|
|
bool &$can_extend
|
|
|
|
): void {
|
|
|
|
$was_inside_use = $context->inside_use;
|
|
|
|
$context->inside_use = true;
|
|
|
|
ExpressionAnalyzer::analyze($statements_analyzer, $stmt_class, $context);
|
|
|
|
$context->inside_use = $was_inside_use;
|
|
|
|
|
|
|
|
$stmt_class_type = $statements_analyzer->node_data->getType($stmt_class);
|
|
|
|
|
|
|
|
if (!$stmt_class_type) {
|
|
|
|
ArgumentsAnalyzer::analyze(
|
|
|
|
$statements_analyzer,
|
|
|
|
$stmt->args,
|
|
|
|
null,
|
|
|
|
null,
|
|
|
|
true,
|
|
|
|
$context
|
|
|
|
);
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
$has_single_class = $stmt_class_type->isSingleStringLiteral();
|
|
|
|
|
|
|
|
if ($has_single_class) {
|
|
|
|
$fq_class_name = $stmt_class_type->getSingleStringLiteral()->value;
|
|
|
|
} else {
|
|
|
|
if (self::checkMethodArgs(
|
|
|
|
null,
|
|
|
|
$stmt->args,
|
|
|
|
null,
|
|
|
|
$context,
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt),
|
|
|
|
$statements_analyzer
|
|
|
|
) === false) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
$new_type = null;
|
|
|
|
|
2021-01-27 04:43:42 +01:00
|
|
|
$stmt_class_types = $stmt_class_type->getAtomicTypes();
|
|
|
|
|
|
|
|
while ($stmt_class_types) {
|
|
|
|
$lhs_type_part = \array_shift($stmt_class_types);
|
|
|
|
|
|
|
|
if ($lhs_type_part instanceof Type\Atomic\TTemplateParam) {
|
|
|
|
$stmt_class_types = \array_merge($stmt_class_types, $lhs_type_part->as->getAtomicTypes());
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($lhs_type_part instanceof Type\Atomic\TTemplateParamClass) {
|
|
|
|
if (!$statements_analyzer->node_data->getType($stmt)) {
|
|
|
|
$new_type_part = new Type\Atomic\TTemplateParam(
|
|
|
|
$lhs_type_part->param_name,
|
|
|
|
$lhs_type_part->as_type
|
|
|
|
? new Type\Union([$lhs_type_part->as_type])
|
|
|
|
: Type::getObject(),
|
|
|
|
$lhs_type_part->defining_class
|
|
|
|
);
|
|
|
|
|
|
|
|
if (!$lhs_type_part->as_type) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new MixedMethodCall(
|
|
|
|
'Cannot call constructor on an unknown class',
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
|
|
|
),
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
2018-01-29 00:29:38 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($new_type) {
|
|
|
|
$new_type = Type::combineUnionTypes(
|
|
|
|
$new_type,
|
|
|
|
new Type\Union([$new_type_part])
|
2020-03-24 23:00:20 +01:00
|
|
|
);
|
2020-11-30 19:24:24 +01:00
|
|
|
} else {
|
|
|
|
$new_type = new Type\Union([$new_type_part]);
|
|
|
|
}
|
2020-03-24 23:00:20 +01:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($lhs_type_part->as_type
|
|
|
|
&& $codebase->classlikes->classExists($lhs_type_part->as_type->value)
|
|
|
|
) {
|
|
|
|
$as_storage = $codebase->classlike_storage_provider->get(
|
|
|
|
$lhs_type_part->as_type->value
|
2019-11-25 17:44:54 +01:00
|
|
|
);
|
2020-11-30 19:24:24 +01:00
|
|
|
|
|
|
|
if (!$as_storage->preserve_constructor_signature) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new UnsafeInstantiation(
|
|
|
|
'Cannot safely instantiate class ' . $lhs_type_part->as_type->value
|
|
|
|
. ' with "new $class_name" as'
|
|
|
|
. ' its constructor might change in child classes',
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
|
|
|
),
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
|
|
|
}
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
}
|
2020-11-30 19:24:24 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
if ($lhs_type_part->as_type) {
|
|
|
|
$codebase->methods->methodExists(
|
|
|
|
new \Psalm\Internal\MethodIdentifier(
|
|
|
|
$lhs_type_part->as_type->value,
|
|
|
|
'__construct'
|
2018-01-29 00:29:38 +01:00
|
|
|
),
|
2020-11-30 19:24:24 +01:00
|
|
|
$context->calling_method_id,
|
|
|
|
$codebase->collect_locations
|
|
|
|
? new CodeLocation($statements_analyzer->getSource(), $stmt) : null,
|
|
|
|
$statements_analyzer,
|
|
|
|
$statements_analyzer->getFilePath()
|
|
|
|
);
|
2018-01-29 00:29:38 +01:00
|
|
|
}
|
2019-08-31 15:49:32 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
continue;
|
|
|
|
}
|
2019-11-25 17:44:54 +01:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($lhs_type_part instanceof Type\Atomic\TLiteralClassString
|
|
|
|
|| $lhs_type_part instanceof Type\Atomic\TClassString
|
|
|
|
|| $lhs_type_part instanceof Type\Atomic\TDependentGetClass
|
|
|
|
) {
|
|
|
|
if (!$statements_analyzer->node_data->getType($stmt)) {
|
|
|
|
if ($lhs_type_part instanceof Type\Atomic\TClassString) {
|
|
|
|
$generated_type = $lhs_type_part->as_type
|
|
|
|
? clone $lhs_type_part->as_type
|
|
|
|
: new Type\Atomic\TObject();
|
|
|
|
|
|
|
|
if ($lhs_type_part->as_type
|
|
|
|
&& $codebase->classlikes->classExists($lhs_type_part->as_type->value)
|
|
|
|
) {
|
|
|
|
$as_storage = $codebase->classlike_storage_provider->get(
|
|
|
|
$lhs_type_part->as_type->value
|
|
|
|
);
|
2020-06-19 07:22:51 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if (!$as_storage->preserve_constructor_signature) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new UnsafeInstantiation(
|
|
|
|
'Cannot safely instantiate class ' . $lhs_type_part->as_type->value
|
|
|
|
. ' with "new $class_name" as'
|
|
|
|
. ' its constructor might change in child classes',
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
|
|
|
),
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} elseif ($lhs_type_part instanceof Type\Atomic\TDependentGetClass) {
|
|
|
|
$generated_type = new Type\Atomic\TObject();
|
2020-06-19 07:22:51 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($lhs_type_part->as_type->hasObjectType()
|
|
|
|
&& $lhs_type_part->as_type->isSingle()
|
|
|
|
) {
|
|
|
|
foreach ($lhs_type_part->as_type->getAtomicTypes() as $typeof_type_atomic) {
|
|
|
|
if ($typeof_type_atomic instanceof Type\Atomic\TNamedObject) {
|
|
|
|
$generated_type = new Type\Atomic\TNamedObject(
|
|
|
|
$typeof_type_atomic->value
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
$generated_type = new Type\Atomic\TNamedObject(
|
|
|
|
$lhs_type_part->value
|
|
|
|
);
|
|
|
|
}
|
2020-06-30 03:08:43 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($lhs_type_part instanceof Type\Atomic\TClassString) {
|
|
|
|
$can_extend = true;
|
|
|
|
}
|
2020-06-30 03:08:43 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($generated_type instanceof Type\Atomic\TObject) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new MixedMethodCall(
|
|
|
|
'Cannot call constructor on an unknown class',
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
|
|
|
),
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
|
|
|
}
|
2020-06-30 03:08:43 +02:00
|
|
|
}
|
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($new_type) {
|
|
|
|
$new_type = Type::combineUnionTypes(
|
|
|
|
$new_type,
|
|
|
|
new Type\Union([$generated_type])
|
2020-06-19 07:22:51 +02:00
|
|
|
);
|
|
|
|
} else {
|
2020-11-30 19:24:24 +01:00
|
|
|
$new_type = new Type\Union([$generated_type]);
|
2020-06-19 07:22:51 +02:00
|
|
|
}
|
2020-11-30 19:24:24 +01:00
|
|
|
}
|
2020-06-19 07:22:51 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
continue;
|
|
|
|
}
|
2020-06-19 07:22:51 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if ($lhs_type_part instanceof Type\Atomic\TString) {
|
|
|
|
if ($config->allow_string_standin_for_class
|
|
|
|
&& !$lhs_type_part instanceof Type\Atomic\TNumericString
|
|
|
|
) {
|
|
|
|
// do nothing
|
|
|
|
} elseif (IssueBuffer::accepts(
|
|
|
|
new InvalidStringClass(
|
|
|
|
'String cannot be used as a class',
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
|
|
|
),
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
2020-06-19 07:22:51 +02:00
|
|
|
}
|
2021-01-27 04:43:42 +01:00
|
|
|
} elseif ($lhs_type_part instanceof Type\Atomic\TMixed) {
|
2020-11-30 19:24:24 +01:00
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new MixedMethodCall(
|
|
|
|
'Cannot call constructor on an unknown class',
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
|
|
|
),
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
|
|
|
}
|
|
|
|
} elseif ($lhs_type_part instanceof Type\Atomic\TFalse
|
|
|
|
&& $stmt_class_type->ignore_falsable_issues
|
|
|
|
) {
|
|
|
|
// do nothing
|
|
|
|
} elseif ($lhs_type_part instanceof Type\Atomic\TNull
|
|
|
|
&& $stmt_class_type->ignore_nullable_issues
|
|
|
|
) {
|
|
|
|
// do nothing
|
|
|
|
} elseif (IssueBuffer::accepts(
|
|
|
|
new UndefinedClass(
|
|
|
|
'Type ' . $lhs_type_part . ' cannot be called as a class',
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt),
|
|
|
|
(string)$lhs_type_part
|
|
|
|
),
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($new_type) {
|
|
|
|
$new_type = Type::combineUnionTypes(
|
|
|
|
$new_type,
|
|
|
|
Type::getObject()
|
2020-05-03 04:13:59 +02:00
|
|
|
);
|
2020-11-30 19:24:24 +01:00
|
|
|
} else {
|
|
|
|
$new_type = Type::getObject();
|
2018-01-29 00:29:38 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
if (!$has_single_class) {
|
|
|
|
if ($new_type) {
|
|
|
|
$statements_analyzer->node_data->setType($stmt, $new_type);
|
|
|
|
}
|
2020-06-19 07:22:51 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
ArgumentsAnalyzer::analyze(
|
|
|
|
$statements_analyzer,
|
|
|
|
$stmt->args,
|
|
|
|
null,
|
|
|
|
null,
|
|
|
|
true,
|
|
|
|
$context
|
|
|
|
);
|
2020-06-19 07:22:51 +02:00
|
|
|
|
2020-11-30 19:24:24 +01:00
|
|
|
return;
|
2018-01-29 00:29:38 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|