2016-11-01 16:37:58 +01:00
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<?php
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namespace Psalm\Checker\Statements\Expression;
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use PhpParser;
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2016-12-07 00:27:22 +01:00
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use PhpParser\Node\Expr\PropertyFetch;
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use PhpParser\Node\Stmt\PropertyProperty;
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2016-11-01 16:37:58 +01:00
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use Psalm\Checker\ClassChecker;
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use Psalm\Checker\ClassLikeChecker;
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use Psalm\Checker\CommentChecker;
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use Psalm\Checker\InterfaceChecker;
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use Psalm\Checker\MethodChecker;
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use Psalm\Checker\StatementsChecker;
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use Psalm\Checker\Statements\ExpressionChecker;
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2016-12-04 01:11:30 +01:00
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use Psalm\CodeLocation;
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2016-11-01 16:37:58 +01:00
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use Psalm\Context;
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use Psalm\Issue\FailedTypeResolution;
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use Psalm\Issue\InvalidArrayAssignment;
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use Psalm\Issue\InvalidPropertyAssignment;
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2016-11-02 07:29:00 +01:00
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use Psalm\Issue\InvalidScope;
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2016-12-04 07:44:33 +01:00
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use Psalm\Issue\InaccessibleProperty;
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2016-11-01 16:37:58 +01:00
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use Psalm\Issue\MissingPropertyDeclaration;
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use Psalm\Issue\MissingPropertyType;
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2016-12-17 00:56:23 +01:00
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use Psalm\Issue\MixedAssignment;
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2016-11-01 16:37:58 +01:00
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use Psalm\Issue\MixedPropertyAssignment;
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use Psalm\Issue\MixedStringOffsetAssignment;
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use Psalm\Issue\NoInterfaceProperties;
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use Psalm\Issue\NullPropertyAssignment;
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use Psalm\Issue\UndefinedClass;
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use Psalm\Issue\UndefinedPropertyAssignment;
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use Psalm\Issue\UndefinedThisPropertyAssignment;
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2016-11-02 07:29:00 +01:00
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use Psalm\IssueBuffer;
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2016-11-01 16:37:58 +01:00
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use Psalm\Type;
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class AssignmentChecker
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{
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/**
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2016-12-04 20:14:00 +01:00
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* @param StatementsChecker $statements_checker
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* @param PhpParser\Node\Expr $assign_var
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2016-12-07 00:27:22 +01:00
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* @param PhpParser\Node\Expr|null $assign_value This has to be null to support list destructuring
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2016-12-04 20:14:00 +01:00
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* @param Type\Union|null $assign_value_type
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* @param Context $context
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* @param string $doc_comment
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2016-11-01 16:37:58 +01:00
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* @return false|Type\Union
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*/
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public static function check(
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StatementsChecker $statements_checker,
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PhpParser\Node\Expr $assign_var,
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2016-12-04 20:14:00 +01:00
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PhpParser\Node\Expr $assign_value = null,
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Type\Union $assign_value_type = null,
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2016-11-01 16:37:58 +01:00
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Context $context,
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$doc_comment
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) {
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$var_id = ExpressionChecker::getVarId(
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$assign_var,
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2016-11-08 01:16:51 +01:00
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$statements_checker->getFQCLN(),
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2016-11-01 16:37:58 +01:00
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$statements_checker->getNamespace(),
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$statements_checker->getAliasedClasses()
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);
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$array_var_id = ExpressionChecker::getArrayVarId(
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$assign_var,
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2016-11-08 01:16:51 +01:00
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$statements_checker->getFQCLN(),
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2016-11-01 16:37:58 +01:00
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$statements_checker->getNamespace(),
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$statements_checker->getAliasedClasses()
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);
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if ($array_var_id) {
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// removes dependennt vars from $context
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$context->removeDescendents($array_var_id);
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}
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2016-11-02 07:29:00 +01:00
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$type_in_comments = CommentChecker::getTypeFromComment(
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$doc_comment,
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$context,
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$statements_checker->getSource(),
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$var_id
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);
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2016-11-01 16:37:58 +01:00
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2016-12-04 20:14:00 +01:00
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if ($assign_value && ExpressionChecker::check($statements_checker, $assign_value, $context) === false) {
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2016-11-01 16:37:58 +01:00
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// if we're not exiting immediately, make everything mixed
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$context->vars_in_scope[$var_id] = $type_in_comments ?: Type::getMixed();
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return false;
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}
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2016-12-17 01:22:30 +01:00
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if ($type_in_comments) {
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$assign_value_type = $type_in_comments;
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} elseif (!$assign_value_type) {
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if (isset($assign_value->inferredType)) {
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2016-12-04 20:14:00 +01:00
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/** @var Type\Union */
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$assign_value_type = $assign_value->inferredType;
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} else {
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$assign_value_type = Type::getMixed();
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}
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2016-11-01 16:37:58 +01:00
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}
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2016-12-17 00:56:23 +01:00
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if ($assign_value_type->isMixed()) {
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if (IssueBuffer::accepts(
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new MixedAssignment(
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'Cannot assign ' . $var_id . ' to a mixed type',
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new CodeLocation($statements_checker->getSource(), $assign_var)
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),
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$statements_checker->getSuppressedIssues()
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)) {
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// fall through
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}
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}
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2016-12-12 05:40:46 +01:00
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if ($var_id === '$this' && IssueBuffer::accepts(
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new InvalidScope(
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'Cannot re-assign ' . $var_id,
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new CodeLocation($statements_checker->getSource(), $assign_var)
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),
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$statements_checker->getSuppressedIssues()
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)) {
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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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if ($assign_var instanceof PhpParser\Node\Expr\Variable && is_string($assign_var->name) && $var_id) {
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2016-12-04 20:14:00 +01:00
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$context->vars_in_scope[$var_id] = $assign_value_type;
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2016-11-01 16:37:58 +01:00
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$context->vars_possibly_in_scope[$var_id] = true;
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$statements_checker->registerVariable($var_id, $assign_var->getLine());
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2016-12-04 19:35:38 +01:00
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} elseif ($assign_var instanceof PhpParser\Node\Expr\List_
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|| $assign_var instanceof PhpParser\Node\Expr\Array_
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) {
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2016-12-04 04:41:45 +01:00
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foreach ($assign_var->items as $offset => $assign_var_item) {
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2016-11-01 16:37:58 +01:00
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// $var can be null e.g. list($a, ) = ['a', 'b']
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2016-12-04 04:41:45 +01:00
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$var = $assign_var_item->value;
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2016-11-01 16:37:58 +01:00
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if (!$var) {
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continue;
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}
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2016-11-01 19:32:19 +01:00
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if ($assign_value instanceof PhpParser\Node\Expr\Array_
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&& isset($assign_value->items[$offset]->value->inferredType)
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) {
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2016-11-02 07:29:00 +01:00
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self::check(
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$statements_checker,
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$var,
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$assign_value->items[$offset]->value,
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2016-12-04 20:14:00 +01:00
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null,
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2016-11-02 07:29:00 +01:00
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$context,
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$doc_comment
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);
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2016-11-01 19:32:19 +01:00
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continue;
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}
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2016-11-01 16:37:58 +01:00
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$list_var_id = ExpressionChecker::getVarId(
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$var,
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2016-11-08 01:16:51 +01:00
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$statements_checker->getFQCLN(),
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2016-11-01 16:37:58 +01:00
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$statements_checker->getNamespace(),
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$statements_checker->getAliasedClasses()
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);
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if ($list_var_id) {
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$context->vars_possibly_in_scope[$list_var_id] = true;
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$statements_checker->registerVariable($list_var_id, $var->getLine());
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2016-12-04 20:14:00 +01:00
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if (isset($assign_value_type->types['array'])) {
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if ($assign_value_type->types['array'] instanceof Type\Generic) {
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$context->vars_in_scope[$list_var_id] = clone $assign_value_type->types['array']->type_params[1];
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continue;
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} elseif ($assign_value_type->types['array'] instanceof Type\ObjectLike) {
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if ($assign_var_item->key
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&& $assign_var_item->key instanceof PhpParser\Node\Scalar\String_
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&& isset($assign_value_type->types['array']->properties[$assign_var_item->key->value])
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) {
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$context->vars_in_scope[$list_var_id] =
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clone $assign_value_type->types['array']->properties[$assign_var_item->key->value];
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continue;
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}
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}
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}
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2016-12-07 00:27:22 +01:00
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$context->vars_in_scope[$list_var_id] = Type::getMixed();
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2016-11-01 16:37:58 +01:00
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}
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}
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2016-11-02 07:29:00 +01:00
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} elseif ($assign_var instanceof PhpParser\Node\Expr\ArrayDimFetch) {
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2016-12-04 20:14:00 +01:00
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if (self::checkArrayAssignment($statements_checker, $assign_var, $context, $assign_value_type) === false) {
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2016-11-01 16:37:58 +01:00
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return false;
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}
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2016-12-15 01:19:25 +01:00
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} elseif ($assign_var instanceof PhpParser\Node\Expr\PropertyFetch && is_string($assign_var->name)) {
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2016-12-07 00:27:22 +01:00
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self::checkPropertyAssignment(
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$statements_checker,
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$assign_var,
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$assign_var->name,
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$assign_value,
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$assign_value_type,
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$context
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);
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2016-11-01 16:37:58 +01:00
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$context->vars_possibly_in_scope[$var_id] = true;
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2016-11-02 07:29:00 +01:00
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} elseif ($assign_var instanceof PhpParser\Node\Expr\StaticPropertyFetch &&
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$assign_var->class instanceof PhpParser\Node\Name &&
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is_string($assign_var->name)
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2016-11-01 16:37:58 +01:00
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) {
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if (ExpressionChecker::check($statements_checker, $assign_var, $context) === false) {
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return false;
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}
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2016-12-07 00:27:22 +01:00
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self::checkStaticPropertyAssignment(
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$statements_checker,
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$assign_var,
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$assign_value,
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$assign_value_type,
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$context
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);
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2016-11-01 16:37:58 +01:00
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$context->vars_possibly_in_scope[$var_id] = true;
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}
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if ($var_id && isset($context->vars_in_scope[$var_id]) && $context->vars_in_scope[$var_id]->isVoid()) {
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if (IssueBuffer::accepts(
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2016-11-02 07:29:00 +01:00
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new FailedTypeResolution(
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'Cannot assign ' . $var_id . ' to type void',
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2016-12-04 01:11:30 +01:00
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new CodeLocation($statements_checker->getSource(), $assign_var)
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2016-11-02 07:29:00 +01:00
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),
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2016-11-01 16:37:58 +01:00
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$statements_checker->getSuppressedIssues()
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)) {
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return false;
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}
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}
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2016-12-04 20:14:00 +01:00
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return $assign_value_type;
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2016-11-01 16:37:58 +01:00
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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\AssignOp $stmt
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* @param Context $context
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* @return false|null
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2016-11-01 16:37:58 +01:00
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*/
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public static function checkAssignmentOperation(
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StatementsChecker $statements_checker,
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PhpParser\Node\Expr\AssignOp $stmt,
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Context $context
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) {
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if (ExpressionChecker::check($statements_checker, $stmt->var, $context) === false) {
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return false;
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}
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2016-11-13 21:39:16 +01:00
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if (ExpressionChecker::check($statements_checker, $stmt->expr, $context) === false) {
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return false;
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}
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$var_id = ExpressionChecker::getVarId(
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$stmt->var,
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$statements_checker->getFQCLN(),
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$statements_checker->getNamespace(),
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$statements_checker->getAliasedClasses()
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);
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$var_type = isset($stmt->var->inferredType) ? clone $stmt->var->inferredType : null;
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$expr_type = isset($stmt->expr->inferredType) ? $stmt->expr->inferredType : null;
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2016-12-08 22:37:14 +01:00
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if ($stmt instanceof PhpParser\Node\Expr\AssignOp\Plus ||
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$stmt instanceof PhpParser\Node\Expr\AssignOp\Minus ||
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$stmt instanceof PhpParser\Node\Expr\AssignOp\Mod ||
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$stmt instanceof PhpParser\Node\Expr\AssignOp\Mul ||
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$stmt instanceof PhpParser\Node\Expr\AssignOp\Pow
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) {
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ExpressionChecker::checkNonDivArithmenticOp($var_type, $expr_type, $result_type);
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2016-11-13 21:39:16 +01:00
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if ($result_type && $var_id) {
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$context->vars_in_scope[$var_id] = $result_type;
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}
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2016-12-08 22:37:14 +01:00
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} elseif ($stmt instanceof PhpParser\Node\Expr\AssignOp\Div
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&& $var_type
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&& $expr_type
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&& $var_type->hasNumericType()
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&& $expr_type->hasNumericType()
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&& $var_id
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) {
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$context->vars_in_scope[$var_id] = Type::combineUnionTypes(Type::getFloat(), Type::getInt());
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2016-11-13 21:39:16 +01:00
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}
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return null;
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2016-11-01 16:37:58 +01:00
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}
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/**
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2016-12-07 00:27:22 +01:00
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* @param StatementsChecker $statements_checker
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* @param PropertyFetch|PropertyProperty $stmt
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* @param string $prop_name
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* @param PhpParser\Node\Expr|null $assignment_value
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* @param Type\Union $assignment_value_type
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* @param Context $context
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2016-11-02 07:29:00 +01:00
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* @return false|null
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2016-11-01 16:37:58 +01:00
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*/
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public static function checkPropertyAssignment(
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StatementsChecker $statements_checker,
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$stmt,
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$prop_name,
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2016-12-07 00:27:22 +01:00
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PhpParser\Node\Expr $assignment_value = null,
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Type\Union $assignment_value_type,
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2016-11-01 16:37:58 +01:00
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Context $context
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) {
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$class_property_types = [];
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2016-12-07 00:27:22 +01:00
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if ($stmt instanceof PropertyProperty) {
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2016-12-06 22:33:47 +01:00
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if (!$context->self || !$stmt->default) {
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2016-11-02 07:29:00 +01:00
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return null;
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2016-11-01 16:37:58 +01:00
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}
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2016-11-02 07:29:00 +01:00
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$class_properties = ClassLikeChecker::getInstancePropertiesForClass(
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$context->self,
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|
|
|
\ReflectionProperty::IS_PRIVATE
|
|
|
|
);
|
2016-11-01 16:37:58 +01:00
|
|
|
|
|
|
|
$class_property_type = $class_properties[$prop_name];
|
|
|
|
|
|
|
|
$class_property_types[] = $class_property_type ? clone $class_property_type : Type::getMixed();
|
|
|
|
|
2016-12-06 22:33:47 +01:00
|
|
|
$assignment_var = $stmt->default;
|
|
|
|
|
2016-11-01 16:37:58 +01:00
|
|
|
$var_id = '$this->' . $prop_name;
|
2016-12-15 01:19:25 +01:00
|
|
|
} else {
|
2016-12-07 00:27:22 +01:00
|
|
|
$assignment_var = $stmt;
|
2016-12-06 22:33:47 +01:00
|
|
|
|
2016-12-15 01:19:25 +01:00
|
|
|
if (ExpressionChecker::check($statements_checker, $stmt->var, $context) === false) {
|
|
|
|
return false;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
2016-12-15 01:19:25 +01:00
|
|
|
/** @var Type\Union */
|
|
|
|
$lhs_type = $stmt->var->inferredType;
|
2016-11-01 16:37:58 +01:00
|
|
|
|
2016-12-07 00:27:22 +01:00
|
|
|
$lhs_var_id = ExpressionChecker::getVarId(
|
|
|
|
$stmt->var,
|
|
|
|
$statements_checker->getFQCLN(),
|
|
|
|
$statements_checker->getNamespace(),
|
|
|
|
$statements_checker->getAliasedClasses()
|
|
|
|
);
|
|
|
|
|
2016-11-01 19:20:01 +01:00
|
|
|
$var_id = ExpressionChecker::getVarId(
|
|
|
|
$stmt,
|
2016-11-08 01:16:51 +01:00
|
|
|
$statements_checker->getFQCLN(),
|
2016-11-01 19:20:01 +01:00
|
|
|
$statements_checker->getNamespace(),
|
|
|
|
$statements_checker->getAliasedClasses()
|
|
|
|
);
|
2016-11-01 16:37:58 +01:00
|
|
|
|
|
|
|
if ($lhs_type->isMixed()) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new MixedPropertyAssignment(
|
2016-12-07 00:27:22 +01:00
|
|
|
$lhs_var_id . ' of type mixed cannot be assigned to',
|
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt->var)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
if ($lhs_type->isNull()) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new NullPropertyAssignment(
|
2016-12-07 00:27:22 +01:00
|
|
|
$lhs_var_id . ' of type null cannot be assigned to',
|
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt->var)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
if ($lhs_type->isNullable()) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new NullPropertyAssignment(
|
2016-12-07 00:27:22 +01:00
|
|
|
$lhs_var_id . ' with possibly null type \'' . $lhs_type . '\' cannot be assigned to',
|
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt->var)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
$has_regular_setter = false;
|
|
|
|
|
|
|
|
foreach ($lhs_type->types as $lhs_type_part) {
|
|
|
|
if ($lhs_type_part->isNull()) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (MethodChecker::methodExists($lhs_type_part . '::__set')) {
|
|
|
|
$context->vars_in_scope[$var_id] = Type::getMixed();
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
$has_regular_setter = true;
|
|
|
|
|
|
|
|
if (!$lhs_type_part->isObjectType()) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new InvalidPropertyAssignment(
|
2016-12-07 00:27:22 +01:00
|
|
|
$lhs_var_id . ' with possible non-object type \'' . $lhs_type_part . '\' cannot treated as an object',
|
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt->var)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($lhs_type_part->isObject()) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
// stdClass and SimpleXMLElement are special cases where we cannot infer the return types
|
|
|
|
// but we don't want to throw an error
|
|
|
|
// Hack has a similar issue: https://github.com/facebook/hhvm/issues/5164
|
2016-11-02 07:29:00 +01:00
|
|
|
if ($lhs_type_part->isObject() ||
|
|
|
|
in_array(
|
|
|
|
strtolower($lhs_type_part->value),
|
|
|
|
['stdclass', 'simplexmlelement', 'dateinterval', 'domdocument', 'domnode']
|
|
|
|
)
|
|
|
|
) {
|
2016-11-01 16:37:58 +01:00
|
|
|
$context->vars_in_scope[$var_id] = Type::getMixed();
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
if (ExpressionChecker::isMock($lhs_type_part->value)) {
|
|
|
|
$context->vars_in_scope[$var_id] = Type::getMixed();
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
2016-12-15 01:19:25 +01:00
|
|
|
if (($stmt->var instanceof PhpParser\Node\Expr\Variable && $stmt->var->name === 'this')
|
|
|
|
|| $lhs_type_part->value === $context->self
|
|
|
|
) {
|
2016-11-01 16:37:58 +01:00
|
|
|
$class_visibility = \ReflectionProperty::IS_PRIVATE;
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($context->self && ClassChecker::classExtends($lhs_type_part->value, $context->self)) {
|
2016-11-01 16:37:58 +01:00
|
|
|
$class_visibility = \ReflectionProperty::IS_PROTECTED;
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-11-01 16:37:58 +01:00
|
|
|
$class_visibility = \ReflectionProperty::IS_PUBLIC;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!ClassChecker::classExists($lhs_type_part->value)) {
|
|
|
|
if (InterfaceChecker::interfaceExists($lhs_type_part->value)) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new NoInterfaceProperties(
|
|
|
|
'Interfaces cannot have properties',
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new UndefinedClass(
|
|
|
|
'Cannot set properties of undefined class ' . $lhs_type_part->value,
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
$class_properties = ClassLikeChecker::getInstancePropertiesForClass(
|
|
|
|
$lhs_type_part->value,
|
|
|
|
$class_visibility
|
|
|
|
);
|
|
|
|
|
|
|
|
if (!isset($class_properties[$prop_name])) {
|
2016-12-15 01:19:25 +01:00
|
|
|
if ($stmt->var instanceof PhpParser\Node\Expr\Variable && $stmt->var->name === 'this') {
|
2016-11-01 16:37:58 +01:00
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new UndefinedThisPropertyAssignment(
|
|
|
|
'Instance property ' . $lhs_type_part->value . '::$' . $prop_name . ' is not defined',
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-11-01 16:37:58 +01:00
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new UndefinedPropertyAssignment(
|
|
|
|
'Instance property ' . $lhs_type_part->value . '::$' . $prop_name . ' is not defined',
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
$class_property_type = $class_properties[$prop_name];
|
|
|
|
|
|
|
|
if ($class_property_type === false) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new MissingPropertyType(
|
2016-11-02 07:29:00 +01:00
|
|
|
'Property ' . $lhs_type_part->value . '::$' . $stmt->name . ' does not have a declared ' .
|
|
|
|
'type',
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
|
|
|
}
|
|
|
|
|
|
|
|
$class_property_type = Type::getMixed();
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-12-11 00:24:28 +01:00
|
|
|
$class_property_type = ExpressionChecker::fleshOutTypes(
|
|
|
|
clone $class_property_type,
|
|
|
|
[],
|
|
|
|
$lhs_type_part->value
|
|
|
|
);
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
$class_property_types[] = $class_property_type;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!$has_regular_setter) {
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
// because we don't want to be assigning for property declarations
|
2016-12-07 00:27:22 +01:00
|
|
|
$context->vars_in_scope[$var_id] = $assignment_value_type;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
if ($var_id && count($class_property_types) === 1 && isset($class_property_types[0]->types['stdClass'])) {
|
|
|
|
$context->vars_in_scope[$var_id] = Type::getMixed();
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
if (!$class_property_types) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new MissingPropertyDeclaration(
|
|
|
|
'Missing property declaration for ' . $var_id,
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
2016-12-07 00:27:22 +01:00
|
|
|
if ($assignment_value_type->isMixed()) {
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
foreach ($class_property_types as $class_property_type) {
|
|
|
|
if ($class_property_type->isMixed()) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2016-12-07 00:27:22 +01:00
|
|
|
if (!$assignment_value_type->isIn($class_property_type)) {
|
2016-11-01 16:37:58 +01:00
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new InvalidPropertyAssignment(
|
2016-11-02 07:29:00 +01:00
|
|
|
$var_id . ' with declared type \'' . $class_property_type . '\' cannot be assigned type \'' .
|
2016-12-07 00:27:22 +01:00
|
|
|
$assignment_value_type . '\'',
|
2016-12-06 22:33:47 +01:00
|
|
|
new CodeLocation(
|
|
|
|
$statements_checker->getSource(),
|
2016-12-07 00:27:22 +01:00
|
|
|
$assignment_value ?: $stmt
|
2016-12-06 22:33:47 +01:00
|
|
|
)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
|
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2016-11-02 07:29:00 +01:00
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Expr\StaticPropertyFetch $stmt
|
2016-12-07 00:27:22 +01:00
|
|
|
* @param PhpParser\Node\Expr|null $assignment_value
|
|
|
|
* @param Type\Union $assignment_value_type
|
2016-11-02 07:29:00 +01:00
|
|
|
* @param Context $context
|
|
|
|
* @return false|null
|
2016-11-01 16:37:58 +01:00
|
|
|
*/
|
|
|
|
protected static function checkStaticPropertyAssignment(
|
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Expr\StaticPropertyFetch $stmt,
|
2016-12-07 00:27:22 +01:00
|
|
|
PhpParser\Node\Expr $assignment_value = null,
|
|
|
|
Type\Union $assignment_value_type,
|
2016-11-01 16:37:58 +01:00
|
|
|
Context $context
|
|
|
|
) {
|
|
|
|
$class_property_types = [];
|
|
|
|
|
|
|
|
$var_id = ExpressionChecker::getVarId(
|
|
|
|
$stmt,
|
2016-11-08 01:16:51 +01:00
|
|
|
$statements_checker->getFQCLN(),
|
2016-11-01 16:37:58 +01:00
|
|
|
$statements_checker->getNamespace(),
|
|
|
|
$statements_checker->getAliasedClasses()
|
|
|
|
);
|
|
|
|
|
2016-11-07 23:29:51 +01:00
|
|
|
$fq_class_name = (string)$stmt->class->inferredType;
|
2016-11-01 16:37:58 +01:00
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
if (($stmt->class instanceof PhpParser\Node\Name && $stmt->class->parts[0] === 'this') ||
|
2016-11-07 23:29:51 +01:00
|
|
|
$fq_class_name === $context->self
|
2016-11-02 07:29:00 +01:00
|
|
|
) {
|
2016-11-01 16:37:58 +01:00
|
|
|
$class_visibility = \ReflectionProperty::IS_PRIVATE;
|
2016-11-07 23:29:51 +01:00
|
|
|
} elseif ($context->self && ClassChecker::classExtends($fq_class_name, $context->self)) {
|
2016-11-01 16:37:58 +01:00
|
|
|
$class_visibility = \ReflectionProperty::IS_PROTECTED;
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-11-01 16:37:58 +01:00
|
|
|
$class_visibility = \ReflectionProperty::IS_PUBLIC;
|
|
|
|
}
|
|
|
|
|
|
|
|
$class_properties = ClassLikeChecker::getStaticPropertiesForClass(
|
2016-11-07 23:29:51 +01:00
|
|
|
$fq_class_name,
|
2016-11-01 16:37:58 +01:00
|
|
|
$class_visibility
|
|
|
|
);
|
|
|
|
|
|
|
|
$all_class_properties = ClassLikeChecker::getStaticPropertiesForClass(
|
2016-11-07 23:29:51 +01:00
|
|
|
$fq_class_name,
|
2016-11-01 16:37:58 +01:00
|
|
|
$class_visibility
|
|
|
|
);
|
|
|
|
|
|
|
|
$prop_name = $stmt->name;
|
|
|
|
|
|
|
|
if (!isset($class_properties[$prop_name])) {
|
|
|
|
$all_class_properties = null;
|
|
|
|
|
|
|
|
if ($class_visibility !== \ReflectionProperty::IS_PRIVATE) {
|
|
|
|
$all_class_properties = ClassLikeChecker::getStaticPropertiesForClass(
|
2016-11-07 23:29:51 +01:00
|
|
|
$fq_class_name,
|
2016-11-01 16:37:58 +01:00
|
|
|
\ReflectionProperty::IS_PRIVATE
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isset($all_class_properties[$prop_name])) {
|
|
|
|
if (IssueBuffer::accepts(
|
2016-12-04 07:44:33 +01:00
|
|
|
new InaccessibleProperty(
|
2016-11-01 16:37:58 +01:00
|
|
|
'Static property ' . $var_id . ' is not visible in this context',
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-11-01 16:37:58 +01:00
|
|
|
if ($stmt->class instanceof PhpParser\Node\Name && $stmt->class->parts[0] === 'this') {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new UndefinedThisPropertyAssignment(
|
|
|
|
'Static property ' . $var_id . ' is not defined',
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-11-01 16:37:58 +01:00
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new UndefinedPropertyAssignment(
|
|
|
|
'Static property ' . $var_id . ' is not defined',
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
2016-12-07 00:27:22 +01:00
|
|
|
$context->vars_in_scope[$var_id] = $assignment_value_type;
|
2016-11-01 16:37:58 +01:00
|
|
|
|
|
|
|
$class_property_type = $class_properties[$prop_name];
|
|
|
|
|
|
|
|
if ($class_property_type === false) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new MissingPropertyType(
|
2016-11-07 23:29:51 +01:00
|
|
|
'Property ' . $fq_class_name . '::$' . $prop_name . ' does not have a declared type',
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
// fall through
|
|
|
|
}
|
|
|
|
|
|
|
|
$class_property_type = Type::getMixed();
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-11-01 16:37:58 +01:00
|
|
|
$class_property_type = clone $class_property_type;
|
|
|
|
}
|
|
|
|
|
2016-12-07 00:27:22 +01:00
|
|
|
if ($assignment_value_type->isMixed()) {
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
if ($class_property_type->isMixed()) {
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
2016-11-07 23:29:51 +01:00
|
|
|
$class_property_type = ExpressionChecker::fleshOutTypes($class_property_type, [], $fq_class_name);
|
2016-11-05 23:31:09 +01:00
|
|
|
|
2016-12-07 00:27:22 +01:00
|
|
|
if (!$assignment_value_type->isIn($class_property_type)) {
|
2016-11-01 16:37:58 +01:00
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new InvalidPropertyAssignment(
|
2016-11-02 07:29:00 +01:00
|
|
|
$var_id . ' with declared type \'' . $class_property_type . '\' cannot be assigned type \'' .
|
2016-12-07 00:27:22 +01:00
|
|
|
$assignment_value_type . '\'',
|
|
|
|
new CodeLocation(
|
|
|
|
$statements_checker->getSource(),
|
|
|
|
$assignment_value ?: $stmt
|
|
|
|
)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-12-07 00:27:22 +01:00
|
|
|
$context->vars_in_scope[$var_id] = $assignment_value_type;
|
2016-11-02 07:29:00 +01:00
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2016-11-02 07:29:00 +01:00
|
|
|
* @param StatementsChecker $statements_checker
|
|
|
|
* @param PhpParser\Node\Expr\ArrayDimFetch $stmt
|
|
|
|
* @param Context $context
|
|
|
|
* @param Type\Union $assignment_value_type
|
|
|
|
* @return false|null
|
2016-11-01 16:37:58 +01:00
|
|
|
* @psalm-suppress MixedMethodCall - some funky logic here
|
|
|
|
*/
|
|
|
|
protected static function checkArrayAssignment(
|
|
|
|
StatementsChecker $statements_checker,
|
|
|
|
PhpParser\Node\Expr\ArrayDimFetch $stmt,
|
|
|
|
Context $context,
|
|
|
|
Type\Union $assignment_value_type
|
|
|
|
) {
|
|
|
|
if ($stmt->dim && ExpressionChecker::check($statements_checker, $stmt->dim, $context, false) === false) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
$assignment_key_type = null;
|
|
|
|
$assignment_key_value = null;
|
|
|
|
|
|
|
|
if ($stmt->dim) {
|
|
|
|
if (isset($stmt->dim->inferredType)) {
|
|
|
|
/** @var Type\Union */
|
|
|
|
$assignment_key_type = $stmt->dim->inferredType;
|
|
|
|
|
|
|
|
if ($stmt->dim instanceof PhpParser\Node\Scalar\String_) {
|
|
|
|
$assignment_key_value = $stmt->dim->value;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-11-01 16:37:58 +01:00
|
|
|
$assignment_key_type = Type::getMixed();
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-11-01 16:37:58 +01:00
|
|
|
$assignment_key_type = Type::getInt();
|
|
|
|
}
|
|
|
|
|
|
|
|
$nesting = 0;
|
|
|
|
$var_id = ExpressionChecker::getVarId(
|
|
|
|
$stmt->var,
|
2016-11-08 01:16:51 +01:00
|
|
|
$statements_checker->getFQCLN(),
|
2016-11-01 16:37:58 +01:00
|
|
|
$statements_checker->getNamespace(),
|
|
|
|
$statements_checker->getAliasedClasses(),
|
|
|
|
$nesting
|
|
|
|
);
|
|
|
|
|
|
|
|
// checks whether or not the thing we're looking at implements ArrayAccess
|
|
|
|
$is_object = $var_id
|
2016-11-02 07:29:00 +01:00
|
|
|
&& isset($context->vars_in_scope[$var_id])
|
|
|
|
&& $context->vars_in_scope[$var_id]->hasObjectType();
|
2016-11-01 16:37:58 +01:00
|
|
|
|
|
|
|
if (ExpressionChecker::check(
|
|
|
|
$statements_checker,
|
|
|
|
$stmt->var,
|
|
|
|
$context,
|
|
|
|
!$is_object,
|
|
|
|
$assignment_key_type,
|
|
|
|
$assignment_value_type,
|
|
|
|
$assignment_key_value
|
2016-11-02 07:29:00 +01:00
|
|
|
) === false) {
|
2016-11-01 16:37:58 +01:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
$array_var_id = ExpressionChecker::getArrayVarId(
|
|
|
|
$stmt->var,
|
2016-11-08 01:16:51 +01:00
|
|
|
$statements_checker->getFQCLN(),
|
2016-11-01 16:37:58 +01:00
|
|
|
$statements_checker->getNamespace(),
|
|
|
|
$statements_checker->getAliasedClasses()
|
|
|
|
);
|
|
|
|
|
2016-12-17 00:56:23 +01:00
|
|
|
$is_string = isset($stmt->var->inferredType)
|
|
|
|
&& $stmt->var->inferredType->hasString();
|
|
|
|
|
|
|
|
$has_scalar = isset($stmt->var->inferredType)
|
|
|
|
&& $stmt->var->inferredType->hasScalarType();
|
|
|
|
|
2016-11-01 16:37:58 +01:00
|
|
|
$keyed_array_var_id = $array_var_id && $stmt->dim instanceof PhpParser\Node\Scalar\String_
|
2016-11-02 07:29:00 +01:00
|
|
|
? $array_var_id . '[\'' . $stmt->dim->value . '\']'
|
|
|
|
: null;
|
2016-11-01 16:37:58 +01:00
|
|
|
|
|
|
|
if (isset($stmt->var->inferredType)) {
|
|
|
|
$return_type = $stmt->var->inferredType;
|
|
|
|
|
|
|
|
if ($is_object) {
|
|
|
|
// do nothing
|
2016-11-02 07:29:00 +01:00
|
|
|
} elseif ($is_string) {
|
2016-11-01 16:37:58 +01:00
|
|
|
foreach ($assignment_value_type->types as $value_type) {
|
|
|
|
if (!$value_type->isString()) {
|
|
|
|
if ($value_type->isMixed()) {
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new MixedStringOffsetAssignment(
|
|
|
|
'Cannot assign a mixed variable to a string offset for ' . $var_id,
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new InvalidArrayAssignment(
|
|
|
|
'Cannot assign string offset for ' . $var_id . ' of type ' . $value_type,
|
2016-12-04 01:11:30 +01:00
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
2016-11-01 16:37:58 +01:00
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2016-12-12 05:40:46 +01:00
|
|
|
} elseif ($has_scalar) {
|
|
|
|
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
new InvalidArrayAssignment(
|
|
|
|
'Cannot assign value on variable ' . $var_id . ' of scalar type ' . $context->vars_in_scope[$var_id],
|
|
|
|
new CodeLocation($statements_checker->getSource(), $stmt)
|
|
|
|
),
|
|
|
|
$statements_checker->getSuppressedIssues()
|
|
|
|
)) {
|
|
|
|
return false;
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-11-01 16:37:58 +01:00
|
|
|
// we want to support multiple array types:
|
|
|
|
// - Dictionaries (which have the type array<string,T>)
|
|
|
|
// - pseudo-objects (which have the type array<string,mixed>)
|
|
|
|
// - typed arrays (which have the type array<int,T>)
|
|
|
|
// and completely freeform arrays
|
|
|
|
//
|
|
|
|
// When making assignments, we generally only know the shape of the array
|
|
|
|
// as it is being created.
|
|
|
|
if ($keyed_array_var_id) {
|
|
|
|
// when we have a pattern like
|
|
|
|
// $a = [];
|
|
|
|
// $a['b']['c']['d'] = 1;
|
|
|
|
// $a['c'] = 2;
|
|
|
|
// we need to create each type in turn
|
|
|
|
// so we get
|
|
|
|
// typeof $a['b']['c']['d'] => int
|
|
|
|
// typeof $a['b']['c'] => array{d:int}
|
|
|
|
// typeof $a['b'] => array{c:array{d:int}}
|
|
|
|
// typeof $a['c'] => int
|
|
|
|
// typeof $a => array{b:array{c:array{d:int}},c:int}
|
|
|
|
|
|
|
|
$context->vars_in_scope[$keyed_array_var_id] = $assignment_value_type;
|
|
|
|
|
|
|
|
$stmt->inferredType = $assignment_value_type;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!$nesting) {
|
|
|
|
/** @var Type\Generic|null */
|
|
|
|
$array_type = isset($context->vars_in_scope[$var_id]->types['array'])
|
|
|
|
&& $context->vars_in_scope[$var_id]->types['array'] instanceof Type\Generic
|
|
|
|
? $context->vars_in_scope[$var_id]->types['array']
|
|
|
|
: null;
|
|
|
|
|
|
|
|
if ($assignment_key_type->hasString()
|
|
|
|
&& $assignment_key_value
|
|
|
|
&& (!isset($context->vars_in_scope[$var_id])
|
|
|
|
|| $context->vars_in_scope[$var_id]->hasObjectLike()
|
|
|
|
|| ($array_type && $array_type->type_params[0]->isEmpty()))
|
|
|
|
) {
|
2016-12-07 00:27:22 +01:00
|
|
|
$assignment_value_type = new Type\Union([
|
2016-11-01 16:37:58 +01:00
|
|
|
new Type\ObjectLike(
|
|
|
|
'array',
|
|
|
|
[
|
|
|
|
$assignment_key_value => $assignment_value_type
|
|
|
|
]
|
|
|
|
)
|
|
|
|
]);
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-12-07 00:27:22 +01:00
|
|
|
$assignment_value_type = new Type\Union([
|
2016-11-01 16:37:58 +01:00
|
|
|
new Type\Generic(
|
|
|
|
'array',
|
|
|
|
[
|
|
|
|
$assignment_key_type,
|
|
|
|
$assignment_value_type
|
|
|
|
]
|
|
|
|
)
|
|
|
|
]);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isset($context->vars_in_scope[$var_id])) {
|
|
|
|
$context->vars_in_scope[$var_id] = Type::combineUnionTypes(
|
|
|
|
$context->vars_in_scope[$var_id],
|
2016-12-07 00:27:22 +01:00
|
|
|
$assignment_value_type
|
2016-11-01 16:37:58 +01:00
|
|
|
);
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-12-07 00:27:22 +01:00
|
|
|
$context->vars_in_scope[$var_id] = $assignment_value_type;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
} else {
|
2016-11-01 16:37:58 +01:00
|
|
|
$context->vars_in_scope[$var_id] = Type::getMixed();
|
|
|
|
}
|
2016-11-02 07:29:00 +01:00
|
|
|
|
|
|
|
return null;
|
2016-11-01 16:37:58 +01:00
|
|
|
}
|
|
|
|
}
|