2016-10-22 19:23:18 +02:00
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<?php
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namespace Psalm\Checker\Statements;
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use PhpParser;
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use Psalm\Checker\ClassLikeChecker;
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use Psalm\Checker\ClosureChecker;
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use Psalm\Checker\CommentChecker;
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2017-09-03 01:23:00 +02:00
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use Psalm\Checker\FunctionLikeChecker;
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2017-07-29 21:05:06 +02:00
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use Psalm\Checker\ProjectChecker;
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2018-01-14 18:09:40 +01:00
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use Psalm\Checker\Statements\Expression\ArrayChecker;
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2016-11-01 16:37:58 +01:00
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use Psalm\Checker\Statements\Expression\AssignmentChecker;
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2018-01-14 18:09:40 +01:00
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use Psalm\Checker\Statements\Expression\BinaryOpChecker;
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2018-01-29 00:29:38 +01:00
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use Psalm\Checker\Statements\Expression\Call\FunctionCallChecker;
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use Psalm\Checker\Statements\Expression\Call\MethodCallChecker;
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use Psalm\Checker\Statements\Expression\Call\NewChecker;
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use Psalm\Checker\Statements\Expression\Call\StaticCallChecker;
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2018-01-14 18:09:40 +01:00
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use Psalm\Checker\Statements\Expression\Fetch\ArrayFetchChecker;
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use Psalm\Checker\Statements\Expression\Fetch\ConstFetchChecker;
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use Psalm\Checker\Statements\Expression\Fetch\PropertyFetchChecker;
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use Psalm\Checker\Statements\Expression\Fetch\VariableFetchChecker;
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use Psalm\Checker\Statements\Expression\IncludeChecker;
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use Psalm\Checker\Statements\Expression\TernaryChecker;
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2016-11-02 07:29:00 +01:00
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use Psalm\Checker\StatementsChecker;
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2016-10-22 19:23:18 +02:00
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use Psalm\Checker\TypeChecker;
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2016-12-04 01:11:30 +01:00
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use Psalm\CodeLocation;
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2016-10-22 19:23:18 +02:00
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use Psalm\Config;
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use Psalm\Context;
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2017-11-15 03:43:31 +01:00
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use Psalm\Exception\DocblockParseException;
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2017-11-07 20:46:53 +01:00
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use Psalm\FileManipulation\FileManipulationBuffer;
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2018-02-23 21:39:33 +01:00
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use Psalm\FileSource;
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2016-10-22 19:23:18 +02:00
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use Psalm\Issue\ForbiddenCode;
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2017-10-07 17:27:54 +02:00
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use Psalm\Issue\InvalidCast;
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2017-01-16 18:59:09 +01:00
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use Psalm\Issue\InvalidClone;
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2017-11-15 03:43:31 +01:00
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use Psalm\Issue\InvalidDocblock;
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2016-10-22 19:23:18 +02:00
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use Psalm\Issue\PossiblyUndefinedVariable;
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use Psalm\Issue\UndefinedVariable;
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2016-11-06 01:53:39 +01:00
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use Psalm\Issue\UnrecognizedExpression;
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2016-11-02 07:29:00 +01:00
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use Psalm\IssueBuffer;
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2017-01-07 20:35:07 +01:00
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use Psalm\StatementsSource;
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2016-10-22 19:23:18 +02:00
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use Psalm\Type;
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2017-01-15 01:06:58 +01:00
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use Psalm\Type\Atomic\ObjectLike;
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use Psalm\Type\Atomic\Scalar;
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use Psalm\Type\Atomic\TArray;
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2017-05-19 06:48:26 +02:00
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use Psalm\Type\Atomic\TFloat;
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2018-04-20 16:52:23 +02:00
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use Psalm\Type\Atomic\TGenericParam;
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2017-05-19 06:48:26 +02:00
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use Psalm\Type\Atomic\TInt;
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2017-01-15 01:06:58 +01:00
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use Psalm\Type\Atomic\TMixed;
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use Psalm\Type\Atomic\TNamedObject;
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2017-05-19 06:48:26 +02:00
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use Psalm\Type\Atomic\TObject;
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use Psalm\Type\Atomic\TString;
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2016-10-22 19:23:18 +02:00
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class ExpressionChecker
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{
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/**
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2016-11-02 07:29:00 +01:00
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* @param StatementsChecker $statements_checker
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* @param PhpParser\Node\Expr $stmt
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* @param Context $context
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* @param bool $array_assignment
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2017-05-27 02:16:18 +02:00
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*
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2016-11-02 07:29:00 +01:00
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* @return false|null
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2016-10-22 19:23:18 +02:00
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*/
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2017-01-07 21:09:47 +01:00
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public static function analyze(
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2016-10-22 19:23:18 +02:00
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StatementsChecker $statements_checker,
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PhpParser\Node\Expr $stmt,
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Context $context,
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2017-11-19 18:33:43 +01:00
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$array_assignment = false
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2016-10-22 19:23:18 +02:00
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) {
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if ($stmt instanceof PhpParser\Node\Expr\Variable) {
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2018-01-14 18:09:40 +01:00
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if (VariableFetchChecker::analyze(
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$statements_checker,
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$stmt,
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$context,
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false,
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null,
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$array_assignment
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) === false
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) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\Assign) {
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2017-01-07 21:09:47 +01:00
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$assignment_type = AssignmentChecker::analyze(
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2016-11-01 16:37:58 +01:00
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$statements_checker,
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$stmt->var,
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$stmt->expr,
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2016-12-04 20:14:00 +01:00
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null,
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2016-11-01 16:37:58 +01:00
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$context,
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2017-04-11 21:34:05 +02:00
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(string)$stmt->getDocComment(),
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$stmt->getLine()
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2016-11-01 16:37:58 +01:00
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);
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if ($assignment_type === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-01 16:37:58 +01:00
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$stmt->inferredType = $assignment_type;
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\AssignOp) {
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2017-01-07 21:09:47 +01:00
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if (AssignmentChecker::analyzeAssignmentOperation($statements_checker, $stmt, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\MethodCall) {
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2018-01-29 00:29:38 +01:00
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if (MethodCallChecker::analyze($statements_checker, $stmt, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\StaticCall) {
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2018-01-29 00:29:38 +01:00
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if (StaticCallChecker::analyze($statements_checker, $stmt, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\ConstFetch) {
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2018-02-08 02:26:26 +01:00
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ConstFetchChecker::analyze($statements_checker, $stmt, $context);
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Scalar\String_) {
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2018-05-03 19:56:30 +02:00
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$stmt->inferredType = Type::getString(strlen($stmt->value) < 30 ? [$stmt->value => true] : null);
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Scalar\EncapsedStringPart) {
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2016-10-22 19:23:18 +02:00
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// do nothing
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Scalar\MagicConst) {
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2017-12-06 06:05:01 +01:00
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switch (strtolower($stmt->getName())) {
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case '__line__':
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$stmt->inferredType = Type::getInt();
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break;
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2018-03-05 23:36:08 +01:00
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case '__class__':
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$stmt->inferredType = Type::getClassString();
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break;
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2017-12-06 06:05:01 +01:00
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case '__file__':
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case '__dir__':
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case '__function__':
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case '__trait__':
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case '__method__':
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case '__namespace__':
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$stmt->inferredType = Type::getString();
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break;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Scalar\LNumber) {
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2018-05-13 00:46:47 +02:00
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$stmt->inferredType = Type::getInt(
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false,
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[($stmt->value >= 0 ? $stmt->value : (string) $stmt->value) => true]
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);
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Scalar\DNumber) {
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2018-05-03 19:56:30 +02:00
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$stmt->inferredType = Type::getFloat([(string)$stmt->value => true]);
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2017-01-26 04:02:19 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\UnaryMinus ||
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$stmt instanceof PhpParser\Node\Expr\UnaryPlus
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) {
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2017-01-07 21:09:47 +01:00
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if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-07 21:29:47 +01:00
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2017-01-26 04:02:19 +01:00
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if (!isset($stmt->expr->inferredType)) {
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$stmt->inferredType = new Type\Union([new TInt, new TFloat]);
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2017-01-26 05:50:34 +01:00
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} elseif ($stmt->expr->inferredType->isMixed()) {
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$stmt->inferredType = Type::getMixed();
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2017-01-26 04:02:19 +01:00
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} else {
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2017-01-26 04:23:06 +01:00
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$acceptable_types = [];
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2018-01-09 21:05:48 +01:00
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foreach ($stmt->expr->inferredType->getTypes() as $type_part) {
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2017-01-26 04:23:06 +01:00
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if ($type_part instanceof TInt || $type_part instanceof TFloat) {
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2018-05-13 00:46:47 +02:00
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if ($type_part instanceof Type\Atomic\TLiteralInt
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&& $stmt instanceof PhpParser\Node\Expr\UnaryMinus
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) {
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$inverted_values = [];
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foreach ($type_part->values as $value => $_) {
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$inverted_values[$value > 0 ? (string) (-$value) : (int) (-$value)] = true;
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}
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$type_part->values = $inverted_values;
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} elseif ($type_part instanceof Type\Atomic\TLiteralFloat
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&& $stmt instanceof PhpParser\Node\Expr\UnaryMinus
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) {
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$inverted_values = [];
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foreach ($type_part->values as $value => $_) {
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$inverted_values[(string)(-$value)] = true;
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}
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$type_part->values = $inverted_values;
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}
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2017-01-26 04:23:06 +01:00
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$acceptable_types[] = $type_part;
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} elseif ($type_part instanceof TString) {
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$acceptable_types[] = new TInt;
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$acceptable_types[] = new TFloat;
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2017-01-26 05:50:34 +01:00
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} else {
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$acceptable_types[] = new TInt;
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2017-01-26 04:02:19 +01:00
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}
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2017-01-26 04:23:06 +01:00
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}
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2017-01-26 05:50:34 +01:00
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$stmt->inferredType = new Type\Union($acceptable_types);
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2017-01-26 04:02:19 +01:00
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\Isset_) {
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2017-01-15 19:58:20 +01:00
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self::analyzeIsset($statements_checker, $stmt, $context);
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2016-11-05 22:53:30 +01:00
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$stmt->inferredType = Type::getBool();
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\ClassConstFetch) {
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2018-01-14 18:09:40 +01:00
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if (ConstFetchChecker::analyzeClassConst($statements_checker, $stmt, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\PropertyFetch) {
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2018-01-14 18:09:40 +01:00
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if (PropertyFetchChecker::analyzeInstance($statements_checker, $stmt, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\StaticPropertyFetch) {
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2018-01-14 18:09:40 +01:00
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if (PropertyFetchChecker::analyzeStatic($statements_checker, $stmt, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\BitwiseNot) {
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2017-01-07 21:09:47 +01:00
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if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\BinaryOp) {
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2018-01-14 18:09:40 +01:00
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if (BinaryOpChecker::analyze(
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2017-02-13 00:06:18 +01:00
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$statements_checker,
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$stmt,
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2017-02-13 01:07:25 +01:00
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$context
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2017-02-13 00:06:18 +01:00
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) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-12-17 06:48:31 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\PostInc ||
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$stmt instanceof PhpParser\Node\Expr\PostDec ||
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$stmt instanceof PhpParser\Node\Expr\PreInc ||
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$stmt instanceof PhpParser\Node\Expr\PreDec
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) {
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2017-01-07 21:09:47 +01:00
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if (self::analyze($statements_checker, $stmt->var, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-12-25 00:44:11 +01:00
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if (isset($stmt->var->inferredType)) {
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$stmt->inferredType = clone $stmt->var->inferredType;
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2018-04-25 05:12:01 +02:00
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$stmt->inferredType->from_calculation = true;
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2018-05-08 23:42:02 +02:00
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foreach ($stmt->inferredType->getTypes() as $atomic_type) {
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if ($atomic_type instanceof Type\Atomic\TLiteralInt) {
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$stmt->inferredType->addType(new Type\Atomic\TInt);
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} elseif ($atomic_type instanceof Type\Atomic\TLiteralFloat) {
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$stmt->inferredType->addType(new Type\Atomic\TFloat);
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2018-05-03 19:56:30 +02:00
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}
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}
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$stmt->inferredType->bustCache();
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2018-04-25 05:12:01 +02:00
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$var_id = self::getArrayVarId($stmt->var, null);
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if ($var_id && isset($context->vars_in_scope[$var_id])) {
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$context->vars_in_scope[$var_id] = $stmt->inferredType;
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}
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2016-12-25 00:44:11 +01:00
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} else {
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$stmt->inferredType = Type::getMixed();
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\New_) {
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2018-01-29 00:29:38 +01:00
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if (NewChecker::analyze($statements_checker, $stmt, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\Array_) {
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2018-01-14 18:09:40 +01:00
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if (ArrayChecker::analyze($statements_checker, $stmt, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Scalar\Encapsed) {
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2017-01-07 21:09:47 +01:00
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if (self::analyzeEncapsulatedString($statements_checker, $stmt, $context) === false) {
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2016-10-22 19:23:18 +02:00
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return false;
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\FuncCall) {
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2017-07-29 21:05:06 +02:00
|
|
|
$project_checker = $statements_checker->getFileChecker()->project_checker;
|
2018-01-29 00:29:38 +01:00
|
|
|
if (FunctionCallChecker::analyze(
|
2017-07-29 21:05:06 +02:00
|
|
|
$project_checker,
|
|
|
|
$statements_checker,
|
|
|
|
$stmt,
|
|
|
|
$context
|
|
|
|
) === false
|
|
|
|
) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Ternary) {
|
2018-01-14 18:09:40 +01:00
|
|
|
if (TernaryChecker::analyze($statements_checker, $stmt, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\BooleanNot) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyzeBooleanNot($statements_checker, $stmt, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Empty_) {
|
2017-12-05 18:14:10 +01:00
|
|
|
self::analyzeEmpty($statements_checker, $stmt, $context);
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Closure) {
|
2016-10-22 19:23:18 +02:00
|
|
|
$closure_checker = new ClosureChecker($stmt, $statements_checker->getSource());
|
|
|
|
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyzeClosureUses($statements_checker, $stmt, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2018-01-21 19:38:51 +01:00
|
|
|
$codebase = $statements_checker->getFileChecker()->project_checker->codebase;
|
|
|
|
|
2017-01-17 00:33:04 +01:00
|
|
|
$use_context = new Context($context->self);
|
2018-01-21 19:38:51 +01:00
|
|
|
$use_context->collect_references = $codebase->collect_references;
|
2016-10-22 19:23:18 +02:00
|
|
|
|
|
|
|
if (!$statements_checker->isStatic()) {
|
2017-01-12 06:54:41 +01:00
|
|
|
if ($context->collect_mutations &&
|
|
|
|
$context->self &&
|
2018-02-01 06:50:01 +01:00
|
|
|
$codebase->classExtends(
|
2017-01-12 06:54:41 +01:00
|
|
|
$context->self,
|
2017-01-07 20:35:07 +01:00
|
|
|
(string)$statements_checker->getFQCLN()
|
2017-01-02 21:31:18 +01:00
|
|
|
)
|
2017-01-12 06:54:41 +01:00
|
|
|
) {
|
|
|
|
$use_context->vars_in_scope['$this'] = clone $context->vars_in_scope['$this'];
|
|
|
|
} elseif ($context->self) {
|
2017-01-15 01:06:58 +01:00
|
|
|
$use_context->vars_in_scope['$this'] = new Type\Union([new TNamedObject($context->self)]);
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
foreach ($context->vars_in_scope as $var => $type) {
|
|
|
|
if (strpos($var, '$this->') === 0) {
|
|
|
|
$use_context->vars_in_scope[$var] = clone $type;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-01-28 18:43:19 +01:00
|
|
|
foreach ($context->vars_possibly_in_scope as $var => $_) {
|
2016-10-22 19:23:18 +02:00
|
|
|
if (strpos($var, '$this->') === 0) {
|
|
|
|
$use_context->vars_possibly_in_scope[$var] = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
foreach ($stmt->uses as $use) {
|
2018-04-17 18:16:25 +02:00
|
|
|
if (!is_string($use->var->name)) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
$use_var_id = '$' . $use->var->name;
|
2016-10-30 03:17:46 +01:00
|
|
|
// insert the ref into the current context if passed by ref, as whatever we're passing
|
|
|
|
// the closure to could execute it straight away.
|
2018-04-17 18:16:25 +02:00
|
|
|
if (!$context->hasVariable($use_var_id, $statements_checker) && $use->byRef) {
|
|
|
|
$context->vars_in_scope[$use_var_id] = Type::getMixed();
|
2016-10-30 03:17:46 +01:00
|
|
|
}
|
|
|
|
|
2018-04-17 18:16:25 +02:00
|
|
|
$use_context->vars_in_scope[$use_var_id] =
|
|
|
|
$context->hasVariable($use_var_id, $statements_checker) && !$use->byRef
|
|
|
|
? clone $context->vars_in_scope[$use_var_id]
|
2016-11-02 07:29:00 +01:00
|
|
|
: Type::getMixed();
|
2016-10-30 03:17:46 +01:00
|
|
|
|
2018-04-17 18:16:25 +02:00
|
|
|
$use_context->vars_possibly_in_scope[$use_var_id] = true;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
2017-04-14 12:03:09 +02:00
|
|
|
$closure_checker->analyze($use_context, $context);
|
2016-10-22 19:23:18 +02:00
|
|
|
|
2016-12-07 20:13:39 +01:00
|
|
|
if (!isset($stmt->inferredType)) {
|
|
|
|
$stmt->inferredType = Type::getClosure();
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\ArrayDimFetch) {
|
2018-01-14 18:09:40 +01:00
|
|
|
if (ArrayFetchChecker::analyze(
|
2016-11-02 07:29:00 +01:00
|
|
|
$statements_checker,
|
|
|
|
$stmt,
|
2017-11-19 18:33:43 +01:00
|
|
|
$context
|
2016-11-02 07:29:00 +01:00
|
|
|
) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Cast\Int_) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
$stmt->inferredType = Type::getInt();
|
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Cast\Double) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
$stmt->inferredType = Type::getFloat();
|
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Cast\Bool_) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
$stmt->inferredType = Type::getBool();
|
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Cast\String_) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2017-10-07 17:27:54 +02:00
|
|
|
$container_type = Type::getString();
|
|
|
|
|
2017-10-07 21:05:05 +02:00
|
|
|
if (isset($stmt->expr->inferredType)
|
2017-10-07 17:27:54 +02:00
|
|
|
&& !$stmt->expr->inferredType->isMixed()
|
2018-04-30 06:19:35 +02:00
|
|
|
&& !isset($stmt->expr->inferredType->getTypes()['resource'])
|
2017-10-07 17:27:54 +02:00
|
|
|
&& !TypeChecker::isContainedBy(
|
2018-02-01 06:50:01 +01:00
|
|
|
$statements_checker->getFileChecker()->project_checker->codebase,
|
2017-10-07 17:27:54 +02:00
|
|
|
$stmt->expr->inferredType,
|
|
|
|
$container_type,
|
|
|
|
true,
|
2017-10-23 17:47:00 +02:00
|
|
|
false,
|
2017-10-07 17:27:54 +02:00
|
|
|
$has_scalar_match
|
|
|
|
)
|
|
|
|
&& !$has_scalar_match
|
|
|
|
) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new InvalidCast(
|
|
|
|
$stmt->expr->inferredType . ' cannot be cast to ' . $container_type,
|
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
$stmt->inferredType = $container_type;
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Cast\Object_) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2017-11-09 21:58:09 +01:00
|
|
|
$stmt->inferredType = new Type\Union([new TNamedObject('stdClass')]);
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Cast\Array_) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2017-04-21 20:06:47 +02:00
|
|
|
$permissible_atomic_types = [];
|
2017-04-21 22:33:18 +02:00
|
|
|
$all_permissible = false;
|
2017-04-21 20:06:47 +02:00
|
|
|
|
|
|
|
if (isset($stmt->expr->inferredType)) {
|
2017-04-21 22:33:18 +02:00
|
|
|
$all_permissible = true;
|
|
|
|
|
2018-01-09 21:05:48 +01:00
|
|
|
foreach ($stmt->expr->inferredType->getTypes() as $type) {
|
2017-04-21 20:06:47 +02:00
|
|
|
if ($type instanceof Scalar) {
|
|
|
|
$permissible_atomic_types[] = new TArray([Type::getInt(), new Type\Union([$type])]);
|
|
|
|
} elseif ($type instanceof TArray) {
|
|
|
|
$permissible_atomic_types[] = $type;
|
|
|
|
} elseif ($type instanceof ObjectLike) {
|
2017-12-19 00:47:17 +01:00
|
|
|
$permissible_atomic_types[] = $type->getGenericArrayType();
|
2017-04-21 20:06:47 +02:00
|
|
|
} else {
|
|
|
|
$all_permissible = false;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($all_permissible) {
|
|
|
|
$stmt->inferredType = Type::combineTypes($permissible_atomic_types);
|
|
|
|
} else {
|
|
|
|
$stmt->inferredType = Type::getArray();
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Cast\Unset_) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
$stmt->inferredType = Type::getNull();
|
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Clone_) {
|
2017-01-16 18:59:09 +01:00
|
|
|
self::analyzeClone($statements_checker, $stmt, $context);
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Instanceof_) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
if ($stmt->class instanceof PhpParser\Node\Name &&
|
2017-11-15 03:56:29 +01:00
|
|
|
!in_array(strtolower($stmt->class->parts[0]), ['self', 'static', 'parent'], true)
|
2016-11-02 07:29:00 +01:00
|
|
|
) {
|
2016-10-22 19:23:18 +02:00
|
|
|
if ($context->check_classes) {
|
2016-11-08 01:16:51 +01:00
|
|
|
$fq_class_name = ClassLikeChecker::getFQCLNFromNameObject(
|
2016-10-22 19:23:18 +02:00
|
|
|
$stmt->class,
|
2017-07-25 22:11:02 +02:00
|
|
|
$statements_checker->getAliases()
|
2016-10-22 19:23:18 +02:00
|
|
|
);
|
|
|
|
|
2016-11-08 01:16:51 +01:00
|
|
|
if (ClassLikeChecker::checkFullyQualifiedClassLikeName(
|
2018-01-02 02:04:03 +01:00
|
|
|
$statements_checker,
|
2016-11-07 23:29:51 +01:00
|
|
|
$fq_class_name,
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt->class),
|
2018-01-02 02:04:03 +01:00
|
|
|
$statements_checker->getSuppressedIssues(),
|
|
|
|
false
|
2016-11-02 07:29:00 +01:00
|
|
|
) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2016-11-05 22:57:14 +01:00
|
|
|
|
|
|
|
$stmt->inferredType = Type::getBool();
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Exit_) {
|
2017-02-12 01:42:12 +01:00
|
|
|
if ($stmt->expr) {
|
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Include_) {
|
2018-01-14 18:09:40 +01:00
|
|
|
IncludeChecker::analyze($statements_checker, $stmt, $context);
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Eval_) {
|
2016-10-22 19:23:18 +02:00
|
|
|
$context->check_classes = false;
|
|
|
|
$context->check_variables = false;
|
|
|
|
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\AssignRef) {
|
2017-02-04 04:07:14 +01:00
|
|
|
if (AssignmentChecker::analyzeAssignmentRef($statements_checker, $stmt, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\ErrorSuppress) {
|
2018-03-13 04:48:10 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\ShellExec) {
|
2016-10-22 19:23:18 +02:00
|
|
|
if (IssueBuffer::accepts(
|
2016-12-04 01:11:30 +01:00
|
|
|
new ForbiddenCode(
|
|
|
|
'Use of shell_exec',
|
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
|
|
|
),
|
2016-10-22 19:23:18 +02:00
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Print_) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\Yield_) {
|
2017-01-07 21:09:47 +01:00
|
|
|
self::analyzeYield($statements_checker, $stmt, $context);
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($stmt instanceof PhpParser\Node\Expr\YieldFrom) {
|
2017-01-07 21:09:47 +01:00
|
|
|
self::analyzeYieldFrom($statements_checker, $stmt, $context);
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-11-06 01:53:39 +01:00
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new UnrecognizedExpression(
|
|
|
|
'Psalm does not understand ' . get_class($stmt),
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-06 01:53:39 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
2018-01-21 19:38:51 +01:00
|
|
|
$project_checker = $statements_checker->getFileChecker()->project_checker;
|
|
|
|
|
2018-02-12 04:49:19 +01:00
|
|
|
$plugin_classes = $project_checker->config->after_expression_checks;
|
2016-12-04 01:11:30 +01:00
|
|
|
|
2018-02-12 04:49:19 +01:00
|
|
|
if ($plugin_classes) {
|
2017-11-07 20:46:53 +01:00
|
|
|
$file_manipulations = [];
|
2016-12-04 01:11:30 +01:00
|
|
|
$code_location = new CodeLocation($statements_checker->getSource(), $stmt);
|
2016-12-08 21:57:18 +01:00
|
|
|
|
2018-02-12 04:49:19 +01:00
|
|
|
foreach ($plugin_classes as $plugin_fq_class_name) {
|
|
|
|
if ($plugin_fq_class_name::afterExpressionCheck(
|
2017-01-02 21:31:18 +01:00
|
|
|
$statements_checker,
|
2016-12-04 01:11:30 +01:00
|
|
|
$stmt,
|
|
|
|
$context,
|
|
|
|
$code_location,
|
2017-11-07 20:46:53 +01:00
|
|
|
$statements_checker->getSuppressedIssues(),
|
|
|
|
$file_manipulations
|
2016-12-04 01:11:30 +01:00
|
|
|
) === false) {
|
|
|
|
return false;
|
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
2017-11-07 20:46:53 +01:00
|
|
|
|
|
|
|
if ($file_manipulations) {
|
2018-02-12 02:56:34 +01:00
|
|
|
/** @psalm-suppress MixedTypeCoercion */
|
2017-11-07 20:46:53 +01:00
|
|
|
FileManipulationBuffer::add($statements_checker->getFilePath(), $file_manipulations);
|
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
|
|
|
|
return null;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2016-11-02 07:29:00 +01:00
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Expr $stmt
|
|
|
|
* @param Type\Union $by_ref_type
|
|
|
|
* @param Context $context
|
2018-02-18 23:55:11 +01:00
|
|
|
* @param bool $constrain_type
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2016-10-22 19:23:18 +02:00
|
|
|
* @return void
|
|
|
|
*/
|
2016-11-02 07:29:00 +01:00
|
|
|
public static function assignByRefParam(
|
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Expr $stmt,
|
|
|
|
Type\Union $by_ref_type,
|
2017-10-28 21:33:29 +02:00
|
|
|
Context $context,
|
|
|
|
$constrain_type = true
|
2016-11-02 07:29:00 +01:00
|
|
|
) {
|
|
|
|
$var_id = self::getVarId(
|
|
|
|
$stmt,
|
2016-11-08 01:16:51 +01:00
|
|
|
$statements_checker->getFQCLN(),
|
2017-01-07 20:35:07 +01:00
|
|
|
$statements_checker
|
2016-11-02 07:29:00 +01:00
|
|
|
);
|
2016-10-22 19:23:18 +02:00
|
|
|
|
2016-12-24 19:23:22 +01:00
|
|
|
if ($var_id) {
|
2017-10-28 21:33:29 +02:00
|
|
|
if (!$by_ref_type->isMixed() && $constrain_type) {
|
2017-02-23 06:25:28 +01:00
|
|
|
$context->byref_constraints[$var_id] = new \Psalm\ReferenceConstraint($by_ref_type);
|
|
|
|
}
|
|
|
|
|
2018-01-28 23:28:34 +01:00
|
|
|
if (!$context->hasVariable($var_id, $statements_checker)) {
|
2016-12-24 19:23:22 +01:00
|
|
|
$context->vars_possibly_in_scope[$var_id] = true;
|
2017-02-08 00:09:12 +01:00
|
|
|
|
|
|
|
if (!$statements_checker->hasVariable($var_id)) {
|
2018-01-28 23:28:34 +01:00
|
|
|
$location = new CodeLocation($statements_checker, $stmt);
|
|
|
|
$statements_checker->registerVariable($var_id, $location, null);
|
|
|
|
|
|
|
|
if ($context->collect_references) {
|
|
|
|
$context->unreferenced_vars[$var_id] = $location;
|
|
|
|
}
|
|
|
|
|
|
|
|
$context->hasVariable($var_id, $statements_checker);
|
2017-02-08 00:09:12 +01:00
|
|
|
}
|
2016-12-24 19:23:22 +01:00
|
|
|
} else {
|
|
|
|
$existing_type = $context->vars_in_scope[$var_id];
|
2017-04-02 23:37:56 +02:00
|
|
|
|
|
|
|
// removes dependennt vars from $context
|
|
|
|
$context->removeDescendents(
|
|
|
|
$var_id,
|
|
|
|
$existing_type,
|
|
|
|
$by_ref_type,
|
2017-06-23 06:39:37 +02:00
|
|
|
$statements_checker
|
2017-04-02 23:37:56 +02:00
|
|
|
);
|
|
|
|
|
2018-01-09 21:44:31 +01:00
|
|
|
if ($existing_type->getId() !== 'array<empty, empty>') {
|
2017-03-13 23:06:56 +01:00
|
|
|
$context->vars_in_scope[$var_id] = $by_ref_type;
|
2016-12-24 19:23:22 +01:00
|
|
|
$stmt->inferredType = $context->vars_in_scope[$var_id];
|
2017-05-25 04:07:49 +02:00
|
|
|
|
2016-12-24 19:23:22 +01:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
2017-02-23 06:25:28 +01:00
|
|
|
|
|
|
|
$context->vars_in_scope[$var_id] = $by_ref_type;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
$stmt->inferredType = $by_ref_type;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2018-01-14 18:09:40 +01:00
|
|
|
* @param PhpParser\Node\Expr $stmt
|
|
|
|
* @param string|null $this_class_name
|
2018-02-23 21:39:33 +01:00
|
|
|
* @param FileSource|null $source
|
2018-01-14 18:09:40 +01:00
|
|
|
* @param int|null &$nesting
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2018-01-14 18:09:40 +01:00
|
|
|
* @return string|null
|
2016-10-22 19:23:18 +02:00
|
|
|
*/
|
2018-01-14 18:09:40 +01:00
|
|
|
public static function getVarId(
|
|
|
|
PhpParser\Node\Expr $stmt,
|
|
|
|
$this_class_name,
|
2018-02-23 21:39:33 +01:00
|
|
|
FileSource $source = null,
|
2018-01-14 18:09:40 +01:00
|
|
|
&$nesting = null
|
2016-10-22 19:23:18 +02:00
|
|
|
) {
|
2018-01-14 18:09:40 +01:00
|
|
|
if ($stmt instanceof PhpParser\Node\Expr\Variable && is_string($stmt->name)) {
|
|
|
|
return '$' . $stmt->name;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
2018-01-14 18:09:40 +01:00
|
|
|
if ($stmt instanceof PhpParser\Node\Expr\StaticPropertyFetch
|
2018-04-17 18:16:25 +02:00
|
|
|
&& $stmt->name instanceof PhpParser\Node\Identifier
|
2018-01-14 18:09:40 +01:00
|
|
|
&& $stmt->class instanceof PhpParser\Node\Name
|
|
|
|
) {
|
|
|
|
if (count($stmt->class->parts) === 1
|
|
|
|
&& in_array(strtolower($stmt->class->parts[0]), ['self', 'static', 'parent'], true)
|
|
|
|
) {
|
|
|
|
if (!$this_class_name) {
|
|
|
|
$fq_class_name = $stmt->class->parts[0];
|
|
|
|
} else {
|
|
|
|
$fq_class_name = $this_class_name;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2018-01-14 18:09:40 +01:00
|
|
|
$fq_class_name = $source
|
|
|
|
? ClassLikeChecker::getFQCLNFromNameObject(
|
|
|
|
$stmt->class,
|
|
|
|
$source->getAliases()
|
|
|
|
)
|
|
|
|
: implode('\\', $stmt->class->parts);
|
2017-02-11 05:35:34 +01:00
|
|
|
}
|
|
|
|
|
2018-04-17 18:16:25 +02:00
|
|
|
return $fq_class_name . '::$' . $stmt->name->name;
|
2018-01-14 18:09:40 +01:00
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
|
2018-04-17 18:16:25 +02:00
|
|
|
if ($stmt instanceof PhpParser\Node\Expr\PropertyFetch && $stmt->name instanceof PhpParser\Node\Identifier) {
|
2018-01-14 18:09:40 +01:00
|
|
|
$object_id = self::getVarId($stmt->var, $this_class_name, $source);
|
2017-03-20 07:05:58 +01:00
|
|
|
|
2018-01-14 18:09:40 +01:00
|
|
|
if (!$object_id) {
|
|
|
|
return null;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
2018-01-14 18:09:40 +01:00
|
|
|
|
2018-04-17 18:16:25 +02:00
|
|
|
return $object_id . '->' . $stmt->name->name;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
2018-01-14 18:09:40 +01:00
|
|
|
if ($stmt instanceof PhpParser\Node\Expr\ArrayDimFetch && $nesting !== null) {
|
|
|
|
++$nesting;
|
2017-05-25 04:07:49 +02:00
|
|
|
|
2018-01-14 18:09:40 +01:00
|
|
|
return self::getVarId($stmt->var, $this_class_name, $source, $nesting);
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2018-01-14 18:09:40 +01:00
|
|
|
* @param PhpParser\Node\Expr $stmt
|
|
|
|
* @param string|null $this_class_name
|
2018-02-23 21:39:33 +01:00
|
|
|
* @param FileSource|null $source
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2018-01-14 18:09:40 +01:00
|
|
|
* @return string|null
|
2016-10-22 19:23:18 +02:00
|
|
|
*/
|
2018-01-14 18:09:40 +01:00
|
|
|
public static function getRootVarId(
|
|
|
|
PhpParser\Node\Expr $stmt,
|
|
|
|
$this_class_name,
|
2018-02-23 21:39:33 +01:00
|
|
|
FileSource $source = null
|
2016-10-22 19:23:18 +02:00
|
|
|
) {
|
2018-01-14 18:09:40 +01:00
|
|
|
if ($stmt instanceof PhpParser\Node\Expr\Variable
|
|
|
|
|| $stmt instanceof PhpParser\Node\Expr\StaticPropertyFetch
|
2017-02-17 02:43:23 +01:00
|
|
|
) {
|
2018-01-14 18:09:40 +01:00
|
|
|
return self::getVarId($stmt, $this_class_name, $source);
|
|
|
|
}
|
2017-11-28 06:46:41 +01:00
|
|
|
|
2018-04-17 18:16:25 +02:00
|
|
|
if ($stmt instanceof PhpParser\Node\Expr\PropertyFetch && $stmt->name instanceof PhpParser\Node\Identifier) {
|
2018-01-14 18:09:40 +01:00
|
|
|
$property_root = self::getRootVarId($stmt->var, $this_class_name, $source);
|
2017-11-28 06:46:41 +01:00
|
|
|
|
2018-01-14 18:09:40 +01:00
|
|
|
if ($property_root) {
|
2018-04-17 18:16:25 +02:00
|
|
|
return $property_root . '->' . $stmt->name->name;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
2018-01-14 18:09:40 +01:00
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
|
2018-01-14 18:09:40 +01:00
|
|
|
if ($stmt instanceof PhpParser\Node\Expr\ArrayDimFetch) {
|
|
|
|
return self::getRootVarId($stmt->var, $this_class_name, $source);
|
|
|
|
}
|
2017-11-28 06:46:41 +01:00
|
|
|
|
2018-01-14 18:09:40 +01:00
|
|
|
return null;
|
|
|
|
}
|
2017-11-28 06:46:41 +01:00
|
|
|
|
2018-01-14 18:09:40 +01:00
|
|
|
/**
|
|
|
|
* @param PhpParser\Node\Expr $stmt
|
|
|
|
* @param string|null $this_class_name
|
2018-02-23 21:39:33 +01:00
|
|
|
* @param FileSource|null $source
|
2018-01-14 18:09:40 +01:00
|
|
|
*
|
|
|
|
* @return string|null
|
|
|
|
*/
|
|
|
|
public static function getArrayVarId(
|
|
|
|
PhpParser\Node\Expr $stmt,
|
|
|
|
$this_class_name,
|
2018-02-23 21:39:33 +01:00
|
|
|
FileSource $source = null
|
2018-01-14 18:09:40 +01:00
|
|
|
) {
|
|
|
|
if ($stmt instanceof PhpParser\Node\Expr\Assign) {
|
|
|
|
return self::getArrayVarId($stmt->var, $this_class_name, $source);
|
|
|
|
}
|
2017-12-04 00:33:54 +01:00
|
|
|
|
2018-02-17 17:24:08 +01:00
|
|
|
if ($stmt instanceof PhpParser\Node\Expr\ArrayDimFetch) {
|
2018-01-14 18:09:40 +01:00
|
|
|
$root_var_id = self::getArrayVarId($stmt->var, $this_class_name, $source);
|
2017-12-04 00:33:54 +01:00
|
|
|
|
2018-02-17 17:24:08 +01:00
|
|
|
$offset = null;
|
|
|
|
|
|
|
|
if ($root_var_id) {
|
|
|
|
if ($stmt->dim instanceof PhpParser\Node\Scalar\String_
|
|
|
|
|| $stmt->dim instanceof PhpParser\Node\Scalar\LNumber
|
|
|
|
) {
|
|
|
|
$offset = $stmt->dim instanceof PhpParser\Node\Scalar\String_
|
|
|
|
? '\'' . $stmt->dim->value . '\''
|
|
|
|
: $stmt->dim->value;
|
|
|
|
} elseif ($stmt->dim instanceof PhpParser\Node\Expr\Variable
|
|
|
|
&& is_string($stmt->dim->name)
|
|
|
|
) {
|
|
|
|
$offset = '$' . $stmt->dim->name;
|
|
|
|
}
|
|
|
|
|
|
|
|
return $root_var_id && $offset !== null ? $root_var_id . '[' . $offset . ']' : null;
|
|
|
|
}
|
2018-01-14 18:09:40 +01:00
|
|
|
}
|
2016-12-28 20:20:16 +01:00
|
|
|
|
2018-05-09 03:21:22 +02:00
|
|
|
if ($stmt instanceof PhpParser\Node\Expr\PropertyFetch) {
|
2018-04-06 22:23:10 +02:00
|
|
|
$object_id = self::getArrayVarId($stmt->var, $this_class_name, $source);
|
|
|
|
|
|
|
|
if (!$object_id) {
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
|
2018-05-09 03:21:22 +02:00
|
|
|
if ($stmt->name instanceof PhpParser\Node\Identifier) {
|
|
|
|
return $object_id . '->' . $stmt->name;
|
|
|
|
} elseif (isset($stmt->name->inferredType) && $stmt->name->inferredType->isSingleStringLiteral()) {
|
|
|
|
return $object_id . '->' . $stmt->name->inferredType->getSingleStringLiteral();
|
|
|
|
} else {
|
|
|
|
return null;
|
|
|
|
}
|
2018-04-06 22:23:10 +02:00
|
|
|
}
|
|
|
|
|
2018-04-28 19:25:44 +02:00
|
|
|
if ($stmt instanceof PhpParser\Node\Expr\MethodCall
|
|
|
|
&& $stmt->name instanceof PhpParser\Node\Identifier
|
|
|
|
&& !$stmt->args
|
|
|
|
) {
|
|
|
|
$config = \Psalm\Config::getInstance();
|
|
|
|
|
|
|
|
if ($config->memoize_method_calls) {
|
|
|
|
$lhs_var_name = self::getArrayVarId(
|
|
|
|
$stmt->var,
|
|
|
|
$this_class_name,
|
|
|
|
$source
|
|
|
|
);
|
|
|
|
|
|
|
|
if (!$lhs_var_name) {
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
|
|
|
|
return $lhs_var_name . '->' . strtolower($stmt->name->name) . '()';
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-01-14 18:09:40 +01:00
|
|
|
return self::getVarId($stmt, $this_class_name, $source);
|
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
|
2018-01-14 18:09:40 +01:00
|
|
|
/**
|
|
|
|
* @param Type\Union $return_type
|
2018-01-26 19:51:00 +01:00
|
|
|
* @param string|null $self_class
|
|
|
|
* @param string|null $static_class
|
2018-01-14 18:09:40 +01:00
|
|
|
*
|
|
|
|
* @return Type\Union
|
|
|
|
*/
|
|
|
|
public static function fleshOutType(
|
|
|
|
ProjectChecker $project_checker,
|
|
|
|
Type\Union $return_type,
|
2018-01-26 19:51:00 +01:00
|
|
|
$self_class = null,
|
|
|
|
$static_class = null
|
2018-01-14 18:09:40 +01:00
|
|
|
) {
|
|
|
|
$return_type = clone $return_type;
|
2016-10-22 19:23:18 +02:00
|
|
|
|
2018-01-14 18:09:40 +01:00
|
|
|
$new_return_type_parts = [];
|
2016-10-22 19:23:18 +02:00
|
|
|
|
2018-01-09 21:05:48 +01:00
|
|
|
foreach ($return_type->getTypes() as $return_type_part) {
|
2017-07-29 21:05:06 +02:00
|
|
|
$new_return_type_parts[] = self::fleshOutAtomicType(
|
|
|
|
$project_checker,
|
|
|
|
$return_type_part,
|
2018-01-26 19:51:00 +01:00
|
|
|
$self_class,
|
|
|
|
$static_class
|
2017-07-29 21:05:06 +02:00
|
|
|
);
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
2017-01-15 23:52:01 +01:00
|
|
|
$fleshed_out_type = new Type\Union($new_return_type_parts);
|
|
|
|
|
|
|
|
$fleshed_out_type->from_docblock = $return_type->from_docblock;
|
2017-05-10 18:49:59 +02:00
|
|
|
$fleshed_out_type->ignore_nullable_issues = $return_type->ignore_nullable_issues;
|
2018-01-25 00:52:58 +01:00
|
|
|
$fleshed_out_type->ignore_falsable_issues = $return_type->ignore_falsable_issues;
|
2018-03-17 21:53:11 +01:00
|
|
|
$fleshed_out_type->possibly_undefined = $return_type->possibly_undefined;
|
2018-01-12 05:18:13 +01:00
|
|
|
$fleshed_out_type->by_ref = $return_type->by_ref;
|
2017-01-15 23:52:01 +01:00
|
|
|
|
|
|
|
return $fleshed_out_type;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2017-03-02 04:27:52 +01:00
|
|
|
* @param Type\Atomic &$return_type
|
2018-01-26 19:51:00 +01:00
|
|
|
* @param string|null $self_class
|
|
|
|
* @param string|null $static_class
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2016-11-01 19:14:35 +01:00
|
|
|
* @return Type\Atomic
|
2016-10-22 19:23:18 +02:00
|
|
|
*/
|
2018-01-26 19:51:00 +01:00
|
|
|
private static function fleshOutAtomicType(
|
2017-07-29 21:05:06 +02:00
|
|
|
ProjectChecker $project_checker,
|
|
|
|
Type\Atomic $return_type,
|
2018-01-26 19:51:00 +01:00
|
|
|
$self_class,
|
|
|
|
$static_class
|
2017-07-29 21:05:06 +02:00
|
|
|
) {
|
2017-01-15 01:06:58 +01:00
|
|
|
if ($return_type instanceof TNamedObject) {
|
2018-01-21 19:38:51 +01:00
|
|
|
$return_type_lc = strtolower($return_type->value);
|
|
|
|
|
2018-01-26 19:51:00 +01:00
|
|
|
if ($return_type_lc === 'static' || $return_type_lc === '$this') {
|
|
|
|
if (!$static_class) {
|
2018-03-27 17:34:48 +02:00
|
|
|
throw new \UnexpectedValueException(
|
2018-01-26 19:51:00 +01:00
|
|
|
'Cannot handle ' . $return_type->value . ' when $static_class is empty'
|
2017-01-15 01:06:58 +01:00
|
|
|
);
|
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
|
2018-01-26 19:51:00 +01:00
|
|
|
$return_type->value = $static_class;
|
|
|
|
} elseif ($return_type_lc === 'self') {
|
|
|
|
if (!$self_class) {
|
2018-03-27 17:34:48 +02:00
|
|
|
throw new \UnexpectedValueException(
|
2018-01-26 19:51:00 +01:00
|
|
|
'Cannot handle ' . $return_type->value . ' when $self_class is empty'
|
2017-12-05 07:47:49 +01:00
|
|
|
);
|
2017-01-15 01:06:58 +01:00
|
|
|
}
|
2018-01-26 19:51:00 +01:00
|
|
|
|
|
|
|
$return_type->value = $self_class;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-01-15 01:06:58 +01:00
|
|
|
if ($return_type instanceof Type\Atomic\TArray || $return_type instanceof Type\Atomic\TGenericObject) {
|
2016-10-22 19:23:18 +02:00
|
|
|
foreach ($return_type->type_params as &$type_param) {
|
2018-01-26 19:51:00 +01:00
|
|
|
$type_param = self::fleshOutType(
|
|
|
|
$project_checker,
|
|
|
|
$type_param,
|
|
|
|
$self_class,
|
|
|
|
$static_class
|
|
|
|
);
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
2018-03-07 19:54:46 +01:00
|
|
|
} elseif ($return_type instanceof Type\Atomic\ObjectLike) {
|
|
|
|
foreach ($return_type->properties as &$property_type) {
|
|
|
|
$property_type = self::fleshOutType(
|
|
|
|
$project_checker,
|
|
|
|
$property_type,
|
|
|
|
$self_class,
|
|
|
|
$static_class
|
|
|
|
);
|
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
2016-11-01 19:14:35 +01:00
|
|
|
|
|
|
|
return $return_type;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2016-11-02 07:29:00 +01:00
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Expr\Closure $stmt
|
|
|
|
* @param Context $context
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2016-11-02 07:29:00 +01:00
|
|
|
* @return false|null
|
2016-10-22 19:23:18 +02:00
|
|
|
*/
|
2017-01-07 21:09:47 +01:00
|
|
|
protected static function analyzeClosureUses(
|
2016-11-02 07:29:00 +01:00
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Expr\Closure $stmt,
|
|
|
|
Context $context
|
|
|
|
) {
|
2016-11-01 19:14:35 +01:00
|
|
|
foreach ($stmt->uses as $use) {
|
2018-05-08 23:42:02 +02:00
|
|
|
if (!is_string($use->var->name)) {
|
2018-04-17 18:16:25 +02:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
$use_var_id = '$' . $use->var->name;
|
|
|
|
|
|
|
|
if (!$context->hasVariable($use_var_id, $statements_checker)) {
|
2018-05-08 23:43:26 +02:00
|
|
|
if ($use_var_id === '$argv' || $use_var_id === '$argc') {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2016-11-01 19:14:35 +01:00
|
|
|
if ($use->byRef) {
|
2017-02-08 00:09:12 +01:00
|
|
|
$context->vars_in_scope[$use_var_id] = Type::getMixed();
|
|
|
|
$context->vars_possibly_in_scope[$use_var_id] = true;
|
|
|
|
|
|
|
|
if (!$statements_checker->hasVariable($use_var_id)) {
|
2018-01-21 22:24:20 +01:00
|
|
|
$statements_checker->registerVariable(
|
|
|
|
$use_var_id,
|
2018-04-17 18:16:25 +02:00
|
|
|
new CodeLocation($statements_checker, $use->var),
|
2018-01-21 22:24:20 +01:00
|
|
|
null
|
|
|
|
);
|
2017-02-08 00:09:12 +01:00
|
|
|
}
|
2017-05-25 04:07:49 +02:00
|
|
|
|
2016-10-22 19:23:18 +02:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2018-05-08 23:43:26 +02:00
|
|
|
if (!isset($context->vars_possibly_in_scope[$use_var_id])) {
|
2016-11-01 19:14:35 +01:00
|
|
|
if ($context->check_variables) {
|
2017-12-06 06:35:41 +01:00
|
|
|
if (IssueBuffer::accepts(
|
2016-11-02 07:29:00 +01:00
|
|
|
new UndefinedVariable(
|
2017-02-08 00:09:12 +01:00
|
|
|
'Cannot find referenced variable ' . $use_var_id,
|
2018-04-17 18:16:25 +02:00
|
|
|
new CodeLocation($statements_checker->getSource(), $use->var)
|
2017-12-06 06:35:41 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
|
2018-05-08 23:43:26 +02:00
|
|
|
return null;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
$first_appearance = $statements_checker->getFirstAppearance($use_var_id);
|
|
|
|
|
|
|
|
if ($first_appearance) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new PossiblyUndefinedVariable(
|
|
|
|
'Possibly undefined variable ' . $use_var_id . ', first seen on line ' .
|
|
|
|
$first_appearance->getLineNumber(),
|
|
|
|
new CodeLocation($statements_checker->getSource(), $use->var)
|
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($context->check_variables) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new UndefinedVariable(
|
|
|
|
'Cannot find referenced variable ' . $use_var_id,
|
|
|
|
new CodeLocation($statements_checker->getSource(), $use->var)
|
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
2016-11-01 19:14:35 +01:00
|
|
|
}
|
2018-05-08 23:43:26 +02:00
|
|
|
|
|
|
|
continue;
|
2016-11-01 19:14:35 +01:00
|
|
|
}
|
2018-05-12 00:09:11 +02:00
|
|
|
} elseif ($use->byRef) {
|
2018-05-08 23:42:02 +02:00
|
|
|
foreach ($context->vars_in_scope[$use_var_id]->getTypes() as $atomic_type) {
|
|
|
|
if ($atomic_type instanceof Type\Atomic\TLiteralInt) {
|
|
|
|
$context->vars_in_scope[$use_var_id]->addType(new Type\Atomic\TInt);
|
|
|
|
} elseif ($atomic_type instanceof Type\Atomic\TLiteralFloat) {
|
|
|
|
$context->vars_in_scope[$use_var_id]->addType(new Type\Atomic\TFloat);
|
|
|
|
} elseif ($atomic_type instanceof Type\Atomic\TLiteralString) {
|
|
|
|
$context->vars_in_scope[$use_var_id]->addType(new Type\Atomic\TString);
|
2017-12-06 06:35:41 +01:00
|
|
|
}
|
2016-11-01 19:14:35 +01:00
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
}
|
2016-11-01 19:14:35 +01:00
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
|
|
|
}
|
2016-11-01 19:14:35 +01:00
|
|
|
|
2016-10-22 19:23:18 +02:00
|
|
|
/**
|
2016-11-02 07:29:00 +01:00
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Expr\Yield_ $stmt
|
|
|
|
* @param Context $context
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2016-11-02 07:29:00 +01:00
|
|
|
* @return false|null
|
2016-10-22 19:23:18 +02:00
|
|
|
*/
|
2017-01-07 21:09:47 +01:00
|
|
|
protected static function analyzeYield(
|
2016-11-02 07:29:00 +01:00
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Expr\Yield_ $stmt,
|
|
|
|
Context $context
|
|
|
|
) {
|
2017-03-02 04:27:52 +01:00
|
|
|
$doc_comment_text = (string)$stmt->getDocComment();
|
|
|
|
|
2018-02-08 05:33:31 +01:00
|
|
|
$var_comments = [];
|
|
|
|
$var_comment_type = null;
|
2017-05-25 07:32:34 +02:00
|
|
|
|
2017-03-02 04:27:52 +01:00
|
|
|
if ($doc_comment_text) {
|
2017-11-15 03:43:31 +01:00
|
|
|
try {
|
2018-02-08 05:33:31 +01:00
|
|
|
$var_comments = CommentChecker::getTypeFromComment(
|
2017-11-15 03:43:31 +01:00
|
|
|
$doc_comment_text,
|
|
|
|
$statements_checker,
|
|
|
|
$statements_checker->getAliases()
|
|
|
|
);
|
|
|
|
} catch (DocblockParseException $e) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new InvalidDocblock(
|
|
|
|
(string)$e->getMessage(),
|
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
|
|
|
)
|
|
|
|
)) {
|
|
|
|
// fall through
|
|
|
|
}
|
|
|
|
}
|
2017-05-25 07:32:34 +02:00
|
|
|
|
2018-02-08 05:33:31 +01:00
|
|
|
foreach ($var_comments as $var_comment) {
|
2017-10-07 16:22:52 +02:00
|
|
|
$comment_type = ExpressionChecker::fleshOutType(
|
|
|
|
$statements_checker->getFileChecker()->project_checker,
|
2018-01-02 02:04:03 +01:00
|
|
|
$var_comment->type,
|
2018-01-26 19:51:00 +01:00
|
|
|
$context->self,
|
2017-10-07 16:22:52 +02:00
|
|
|
$context->self
|
|
|
|
);
|
|
|
|
|
2018-02-08 05:33:31 +01:00
|
|
|
if (!$var_comment->var_id) {
|
|
|
|
$var_comment_type = $comment_type;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2017-10-07 16:22:52 +02:00
|
|
|
$context->vars_in_scope[$var_comment->var_id] = $comment_type;
|
2017-05-25 07:32:34 +02:00
|
|
|
}
|
2017-03-02 04:27:52 +01:00
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
|
|
|
|
if ($stmt->key) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->key, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($stmt->value) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->value, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2018-02-08 05:33:31 +01:00
|
|
|
if ($var_comment_type) {
|
|
|
|
$stmt->inferredType = $var_comment_type;
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif (isset($stmt->value->inferredType)) {
|
2016-10-22 19:23:18 +02:00
|
|
|
$stmt->inferredType = $stmt->value->inferredType;
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-10-22 19:23:18 +02:00
|
|
|
$stmt->inferredType = Type::getMixed();
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-10-22 19:23:18 +02:00
|
|
|
$stmt->inferredType = Type::getNull();
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
|
|
|
|
return null;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2016-11-02 07:29:00 +01:00
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Expr\YieldFrom $stmt
|
|
|
|
* @param Context $context
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2016-11-02 07:29:00 +01:00
|
|
|
* @return false|null
|
2016-10-22 19:23:18 +02:00
|
|
|
*/
|
2017-01-07 21:09:47 +01:00
|
|
|
protected static function analyzeYieldFrom(
|
2016-11-02 07:29:00 +01:00
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Expr\YieldFrom $stmt,
|
|
|
|
Context $context
|
|
|
|
) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isset($stmt->expr->inferredType)) {
|
2017-11-15 04:29:15 +01:00
|
|
|
// this should be whatever the generator above returns, but *not* the return type
|
|
|
|
$stmt->inferredType = Type::getMixed();
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
|
|
|
|
return null;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
/**
|
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Expr\BooleanNot $stmt
|
|
|
|
* @param Context $context
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2016-11-02 07:29:00 +01:00
|
|
|
* @return false|null
|
|
|
|
*/
|
2017-01-07 21:09:47 +01:00
|
|
|
protected static function analyzeBooleanNot(
|
2016-11-02 07:29:00 +01:00
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Expr\BooleanNot $stmt,
|
|
|
|
Context $context
|
|
|
|
) {
|
2016-11-05 22:53:30 +01:00
|
|
|
$stmt->inferredType = Type::getBool();
|
2016-12-28 22:29:50 +01:00
|
|
|
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
2016-12-28 22:29:50 +01:00
|
|
|
return false;
|
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
/**
|
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Expr\Empty_ $stmt
|
|
|
|
* @param Context $context
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2017-12-05 18:14:10 +01:00
|
|
|
* @return void
|
2016-11-02 07:29:00 +01:00
|
|
|
*/
|
2017-01-07 21:09:47 +01:00
|
|
|
protected static function analyzeEmpty(
|
2016-11-02 07:29:00 +01:00
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Expr\Empty_ $stmt,
|
|
|
|
Context $context
|
|
|
|
) {
|
2017-12-05 18:14:10 +01:00
|
|
|
self::analyzeIssetVar($statements_checker, $stmt->expr, $context);
|
2018-04-09 16:19:23 +02:00
|
|
|
$stmt->inferredType = Type::getBool();
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2016-11-02 07:29:00 +01:00
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Scalar\Encapsed $stmt
|
|
|
|
* @param Context $context
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2016-11-02 07:29:00 +01:00
|
|
|
* @return false|null
|
2016-10-22 19:23:18 +02:00
|
|
|
*/
|
2017-01-07 21:09:47 +01:00
|
|
|
protected static function analyzeEncapsulatedString(
|
2016-11-02 07:29:00 +01:00
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Scalar\Encapsed $stmt,
|
|
|
|
Context $context
|
|
|
|
) {
|
2017-09-03 01:48:59 +02:00
|
|
|
$project_checker = $statements_checker->getFileChecker()->project_checker;
|
|
|
|
|
|
|
|
$function_storage = null;
|
|
|
|
|
|
|
|
if ($project_checker->infer_types_from_usage) {
|
|
|
|
$source_checker = $statements_checker->getSource();
|
|
|
|
|
|
|
|
if ($source_checker instanceof FunctionLikeChecker) {
|
2017-12-07 21:50:25 +01:00
|
|
|
$function_storage = $source_checker->getFunctionLikeStorage($statements_checker);
|
2017-09-03 01:48:59 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-10-22 19:23:18 +02:00
|
|
|
/** @var PhpParser\Node\Expr $part */
|
|
|
|
foreach ($stmt->parts as $part) {
|
2017-01-07 21:09:47 +01:00
|
|
|
if (self::analyze($statements_checker, $part, $context) === false) {
|
2016-10-22 19:23:18 +02:00
|
|
|
return false;
|
|
|
|
}
|
2017-09-03 01:48:59 +02:00
|
|
|
|
2017-09-04 02:52:54 +02:00
|
|
|
if ($function_storage) {
|
|
|
|
$context->inferType($part, $function_storage, Type::getString());
|
2017-09-03 01:48:59 +02:00
|
|
|
}
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
$stmt->inferredType = Type::getString();
|
2017-05-25 04:07:49 +02:00
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
|
2017-01-15 19:58:20 +01:00
|
|
|
/**
|
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Expr\Isset_ $stmt
|
|
|
|
* @param Context $context
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2017-01-15 19:58:20 +01:00
|
|
|
* @return void
|
|
|
|
*/
|
|
|
|
protected static function analyzeIsset(
|
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Expr\Isset_ $stmt,
|
|
|
|
Context $context
|
|
|
|
) {
|
|
|
|
foreach ($stmt->vars as $isset_var) {
|
2018-04-17 18:16:25 +02:00
|
|
|
if ($isset_var instanceof PhpParser\Node\Expr\PropertyFetch
|
|
|
|
&& $isset_var->var instanceof PhpParser\Node\Expr\Variable
|
|
|
|
&& $isset_var->var->name === 'this'
|
|
|
|
&& $isset_var->name instanceof PhpParser\Node\Identifier
|
2017-01-15 19:58:20 +01:00
|
|
|
) {
|
2018-04-17 18:16:25 +02:00
|
|
|
$var_id = '$this->' . $isset_var->name->name;
|
2017-04-28 22:41:54 +02:00
|
|
|
|
|
|
|
if (!isset($context->vars_in_scope[$var_id])) {
|
|
|
|
$context->vars_in_scope[$var_id] = Type::getMixed();
|
|
|
|
$context->vars_possibly_in_scope[$var_id] = true;
|
|
|
|
}
|
2017-01-15 19:58:20 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
self::analyzeIssetVar($statements_checker, $isset_var, $context);
|
|
|
|
}
|
2018-04-09 16:20:13 +02:00
|
|
|
|
|
|
|
$stmt->inferredType = Type::getBool();
|
2017-01-15 19:58:20 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Expr $stmt
|
|
|
|
* @param Context $context
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2018-01-10 01:33:39 +01:00
|
|
|
* @return false|null
|
2017-01-15 19:58:20 +01:00
|
|
|
*/
|
|
|
|
protected static function analyzeIssetVar(
|
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Expr $stmt,
|
|
|
|
Context $context
|
|
|
|
) {
|
2018-05-01 04:13:13 +02:00
|
|
|
|
2018-01-10 01:33:39 +01:00
|
|
|
$context->inside_isset = true;
|
2017-01-15 19:58:20 +01:00
|
|
|
|
2018-01-10 01:33:39 +01:00
|
|
|
if (self::analyze($statements_checker, $stmt, $context) === false) {
|
|
|
|
return false;
|
2017-01-15 19:58:20 +01:00
|
|
|
}
|
2018-01-10 01:33:39 +01:00
|
|
|
|
|
|
|
$context->inside_isset = false;
|
2017-01-15 19:58:20 +01:00
|
|
|
}
|
|
|
|
|
2017-01-16 18:59:09 +01:00
|
|
|
/**
|
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Expr\Clone_ $stmt
|
|
|
|
* @param Context $context
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2017-01-16 18:59:09 +01:00
|
|
|
* @return false|null
|
|
|
|
*/
|
|
|
|
protected static function analyzeClone(
|
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Expr\Clone_ $stmt,
|
|
|
|
Context $context
|
|
|
|
) {
|
|
|
|
if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isset($stmt->expr->inferredType)) {
|
2018-01-09 21:05:48 +01:00
|
|
|
foreach ($stmt->expr->inferredType->getTypes() as $clone_type_part) {
|
2018-04-20 16:52:23 +02:00
|
|
|
if (!$clone_type_part instanceof TNamedObject
|
|
|
|
&& !$clone_type_part instanceof TObject
|
|
|
|
&& !$clone_type_part instanceof TMixed
|
|
|
|
&& !$clone_type_part instanceof TGenericParam
|
2017-01-19 21:00:05 +01:00
|
|
|
) {
|
2017-01-16 18:59:09 +01:00
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new InvalidClone(
|
|
|
|
'Cannot clone ' . $clone_type_part,
|
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
$stmt->inferredType = $stmt->expr->inferredType;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-10-22 19:23:18 +02:00
|
|
|
/**
|
2016-11-07 23:29:51 +01:00
|
|
|
* @param string $fq_class_name
|
2017-05-27 02:16:18 +02:00
|
|
|
*
|
2017-05-25 04:07:49 +02:00
|
|
|
* @return bool
|
2016-10-22 19:23:18 +02:00
|
|
|
*/
|
2016-11-07 23:29:51 +01:00
|
|
|
public static function isMock($fq_class_name)
|
2016-10-22 19:23:18 +02:00
|
|
|
{
|
2017-05-27 02:05:57 +02:00
|
|
|
return in_array($fq_class_name, Config::getInstance()->getMockClasses(), true);
|
2016-10-22 19:23:18 +02:00
|
|
|
}
|
|
|
|
}
|