mirror of
https://github.com/danog/psalm.git
synced 2024-12-16 11:26:55 +01:00
1425 lines
54 KiB
PHP
1425 lines
54 KiB
PHP
<?php
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namespace Psalm\Internal\Analyzer\Statements\Expression\Call;
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use PhpParser;
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use Psalm\Internal\Analyzer\ClassLikeAnalyzer;
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use Psalm\Internal\Analyzer\FunctionLikeAnalyzer;
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use Psalm\Internal\Analyzer\MethodAnalyzer;
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use Psalm\Internal\Analyzer\Statements\ExpressionAnalyzer;
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use Psalm\Internal\Analyzer\StatementsAnalyzer;
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use Psalm\Internal\Analyzer\TypeAnalyzer;
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use Psalm\Internal\Codebase\CallMap;
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use Psalm\Codebase;
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use Psalm\CodeLocation;
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use Psalm\Context;
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use Psalm\Internal\FileManipulation\FileManipulationBuffer;
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use Psalm\Issue\InvalidMethodCall;
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use Psalm\Issue\InvalidPropertyAssignmentValue;
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use Psalm\Issue\InvalidScope;
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use Psalm\Issue\MixedMethodCall;
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use Psalm\Issue\MixedTypeCoercion;
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use Psalm\Issue\NullReference;
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use Psalm\Issue\PossiblyFalseReference;
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use Psalm\Issue\PossiblyInvalidMethodCall;
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use Psalm\Issue\PossiblyInvalidPropertyAssignmentValue;
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use Psalm\Issue\PossiblyNullReference;
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use Psalm\Issue\PossiblyUndefinedMethod;
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use Psalm\Issue\TypeCoercion;
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use Psalm\Issue\UndefinedInterfaceMethod;
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use Psalm\Issue\UndefinedMethod;
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use Psalm\Issue\UndefinedThisPropertyAssignment;
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use Psalm\Issue\UndefinedThisPropertyFetch;
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use Psalm\IssueBuffer;
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use Psalm\Storage\Assertion;
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use Psalm\Storage\ClassLikeStorage;
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use Psalm\Type;
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use Psalm\Type\Atomic\TGenericObject;
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use Psalm\Type\Atomic\TNamedObject;
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/**
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* @internal
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*/
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class MethodCallAnalyzer extends \Psalm\Internal\Analyzer\Statements\Expression\CallAnalyzer
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{
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/**
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* @param StatementsAnalyzer $statements_analyzer
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* @param PhpParser\Node\Expr\MethodCall $stmt
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* @param Context $context
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*
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* @return false|null
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*/
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public static function analyze(
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StatementsAnalyzer $statements_analyzer,
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PhpParser\Node\Expr\MethodCall $stmt,
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Context $context
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) {
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$stmt->inferredType = null;
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if (ExpressionAnalyzer::analyze($statements_analyzer, $stmt->var, $context) === false) {
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return false;
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}
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if (!$stmt->name instanceof PhpParser\Node\Identifier) {
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if (ExpressionAnalyzer::analyze($statements_analyzer, $stmt->name, $context) === false) {
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return false;
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}
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}
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if ($stmt->var instanceof PhpParser\Node\Expr\Variable) {
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if (is_string($stmt->var->name) && $stmt->var->name === 'this' && !$statements_analyzer->getFQCLN()) {
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if (IssueBuffer::accepts(
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new InvalidScope(
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'Use of $this in non-class context',
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new CodeLocation($statements_analyzer->getSource(), $stmt)
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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return false;
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}
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}
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}
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$lhs_var_id = ExpressionAnalyzer::getArrayVarId(
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$stmt->var,
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$statements_analyzer->getFQCLN(),
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$statements_analyzer
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);
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$class_type = $lhs_var_id && $context->hasVariable($lhs_var_id, $statements_analyzer)
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? $context->vars_in_scope[$lhs_var_id]
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: null;
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if (isset($stmt->var->inferredType)) {
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$class_type = $stmt->var->inferredType;
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} elseif (!$class_type) {
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$stmt->inferredType = Type::getMixed();
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}
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if (!$context->check_classes) {
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if (self::checkFunctionArguments(
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$statements_analyzer,
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$stmt->args,
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null,
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null,
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$context
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) === false) {
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return false;
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}
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return null;
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}
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$has_mock = false;
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if ($class_type && $stmt->name instanceof PhpParser\Node\Identifier && $class_type->isNull()) {
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if (IssueBuffer::accepts(
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new NullReference(
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'Cannot call method ' . $stmt->name->name . ' on null value',
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new CodeLocation($statements_analyzer->getSource(), $stmt->name)
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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return false;
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}
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return null;
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}
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if ($class_type
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&& $stmt->name instanceof PhpParser\Node\Identifier
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&& $class_type->isNullable()
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&& !$class_type->ignore_nullable_issues
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) {
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if (IssueBuffer::accepts(
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new PossiblyNullReference(
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'Cannot call method ' . $stmt->name->name . ' on possibly null value',
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new CodeLocation($statements_analyzer->getSource(), $stmt->name)
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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// fall through
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}
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}
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if ($class_type
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&& $stmt->name instanceof PhpParser\Node\Identifier
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&& $class_type->isFalsable()
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&& !$class_type->ignore_falsable_issues
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) {
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if (IssueBuffer::accepts(
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new PossiblyFalseReference(
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'Cannot call method ' . $stmt->name->name . ' on possibly false value',
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new CodeLocation($statements_analyzer->getSource(), $stmt->name)
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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// fall through
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}
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}
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$codebase = $statements_analyzer->getCodebase();
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$config = $codebase->config;
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$non_existent_class_method_ids = [];
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$non_existent_interface_method_ids = [];
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$existent_method_ids = [];
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$has_mixed_method_call = false;
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$invalid_method_call_types = [];
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$has_valid_method_call_type = false;
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$source = $statements_analyzer->getSource();
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$returns_by_ref = false;
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$no_method_id = false;
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if ($class_type) {
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$return_type = null;
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$lhs_types = $class_type->getTypes();
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foreach ($lhs_types as $lhs_type_part) {
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$result = self::analyzeAtomicCall(
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$statements_analyzer,
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$stmt,
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$codebase,
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$context,
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$lhs_type_part,
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$lhs_var_id,
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$return_type,
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$returns_by_ref,
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$has_mock,
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$has_valid_method_call_type,
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$has_mixed_method_call,
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$invalid_method_call_types,
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$existent_method_ids,
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$non_existent_class_method_ids,
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$non_existent_interface_method_ids
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);
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if ($result === false) {
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return false;
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}
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if ($result === true) {
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$no_method_id = true;
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}
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}
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if ($invalid_method_call_types) {
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$invalid_class_type = $invalid_method_call_types[0];
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if ($has_valid_method_call_type || $has_mixed_method_call) {
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if (IssueBuffer::accepts(
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new PossiblyInvalidMethodCall(
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'Cannot call method on possible ' . $invalid_class_type . ' variable ' . $lhs_var_id,
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new CodeLocation($source, $stmt->name)
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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return false;
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}
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} else {
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if (IssueBuffer::accepts(
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new InvalidMethodCall(
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'Cannot call method on ' . $invalid_class_type . ' variable ' . $lhs_var_id,
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new CodeLocation($source, $stmt->name)
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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return false;
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}
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}
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}
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if ($non_existent_class_method_ids) {
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if ($context->check_methods) {
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if ($existent_method_ids || $has_mixed_method_call) {
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if (IssueBuffer::accepts(
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new PossiblyUndefinedMethod(
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'Method ' . $non_existent_class_method_ids[0] . ' does not exist',
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new CodeLocation($source, $stmt->name),
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$non_existent_class_method_ids[0]
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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return false;
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}
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} else {
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if (IssueBuffer::accepts(
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new UndefinedMethod(
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'Method ' . $non_existent_class_method_ids[0] . ' does not exist',
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new CodeLocation($source, $stmt->name),
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$non_existent_class_method_ids[0]
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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return false;
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}
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}
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}
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return null;
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}
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if ($non_existent_interface_method_ids) {
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if ($context->check_methods) {
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if ($existent_method_ids || $has_mixed_method_call) {
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if (IssueBuffer::accepts(
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new PossiblyUndefinedMethod(
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'Method ' . $non_existent_interface_method_ids[0] . ' does not exist',
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new CodeLocation($source, $stmt->name),
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$non_existent_interface_method_ids[0]
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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return false;
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}
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} else {
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if (IssueBuffer::accepts(
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new UndefinedInterfaceMethod(
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'Method ' . $non_existent_interface_method_ids[0] . ' does not exist',
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new CodeLocation($source, $stmt->name),
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$non_existent_interface_method_ids[0]
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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return false;
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}
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}
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}
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return null;
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}
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$stmt->inferredType = $return_type;
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if ($returns_by_ref) {
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if (!$stmt->inferredType) {
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$stmt->inferredType = Type::getMixed();
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}
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$stmt->inferredType->by_ref = $returns_by_ref;
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}
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}
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if ($no_method_id) {
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return self::checkMethodArgs(
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null,
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$stmt->args,
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$found_generic_params,
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$context,
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new CodeLocation($statements_analyzer->getSource(), $stmt),
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$statements_analyzer
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);
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}
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if ($codebase->server_mode
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&& (!$context->collect_initializations
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&& !$context->collect_mutations)
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&& isset($stmt->inferredType)
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) {
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$codebase->analyzer->addNodeType(
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$statements_analyzer->getFilePath(),
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$stmt->name,
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(string) $stmt->inferredType
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);
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}
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if (!$config->remember_property_assignments_after_call && !$context->collect_initializations) {
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$context->removeAllObjectVars();
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}
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// if we called a method on this nullable variable, remove the nullable status here
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// because any further calls must have worked
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if ($lhs_var_id
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||
&& $class_type
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||
&& $has_valid_method_call_type
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||
&& !$has_mixed_method_call
|
||
&& !$invalid_method_call_types
|
||
&& $existent_method_ids
|
||
&& ($class_type->from_docblock || $class_type->isNullable())
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||
) {
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||
$keys_to_remove = [];
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||
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foreach ($class_type->getTypes() as $key => $type) {
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if (!$type instanceof TNamedObject) {
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$keys_to_remove[] = $key;
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} else {
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$type->from_docblock = false;
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}
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}
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foreach ($keys_to_remove as $key) {
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$class_type->removeType($key);
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}
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$class_type->from_docblock = false;
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||
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$context->removeVarFromConflictingClauses($lhs_var_id, null, $statements_analyzer);
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$context->vars_in_scope[$lhs_var_id] = $class_type;
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}
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}
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/**
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* [analyzeAtomicCall description]
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* @param StatementsAnalyzer $statements_analyzer
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* @param PhpParser\Node\Expr\MethodCall $stmt
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||
* @param Codebase $codebase
|
||
* @param Context $context
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||
* @param Type\Atomic $lhs_type_part
|
||
* @param ?string $lhs_var_id
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||
* @param ?Type\Union &$return_type
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||
* @param bool &$returns_by_ref
|
||
* @param bool &$has_mock
|
||
* @param bool &$has_valid_method_call_type
|
||
* @param bool &$has_mixed_method_call
|
||
* @param array<string> &$invalid_method_call_types
|
||
* @param array<string> &$existent_method_ids
|
||
* @param array<string> &$non_existent_class_method_ids
|
||
* @param array<string> &$non_existent_interface_method_ids
|
||
* @return null|bool
|
||
*/
|
||
private static function analyzeAtomicCall(
|
||
StatementsAnalyzer $statements_analyzer,
|
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PhpParser\Node\Expr\MethodCall $stmt,
|
||
Codebase $codebase,
|
||
Context $context,
|
||
Type\Atomic $lhs_type_part,
|
||
$lhs_var_id,
|
||
&$return_type,
|
||
&$returns_by_ref,
|
||
&$has_mock,
|
||
&$has_valid_method_call_type,
|
||
&$has_mixed_method_call,
|
||
&$invalid_method_call_types,
|
||
&$existent_method_ids,
|
||
&$non_existent_class_method_ids,
|
||
&$non_existent_interface_method_ids
|
||
) {
|
||
$config = $codebase->config;
|
||
|
||
if ($lhs_type_part instanceof Type\Atomic\TTemplateParam
|
||
&& !$lhs_type_part->as->isMixed()
|
||
) {
|
||
$extra_types = $lhs_type_part->extra_types;
|
||
|
||
$lhs_type_part = array_values(
|
||
$lhs_type_part->as->getTypes()
|
||
)[0];
|
||
|
||
$lhs_type_part->from_docblock = true;
|
||
|
||
if ($lhs_type_part instanceof TNamedObject) {
|
||
$lhs_type_part->extra_types = $extra_types;
|
||
}
|
||
|
||
$has_mixed_method_call = true;
|
||
}
|
||
|
||
$source = $statements_analyzer->getSource();
|
||
|
||
if (!$lhs_type_part instanceof TNamedObject) {
|
||
switch (get_class($lhs_type_part)) {
|
||
case Type\Atomic\TNull::class:
|
||
case Type\Atomic\TFalse::class:
|
||
// handled above
|
||
return;
|
||
|
||
case Type\Atomic\TInt::class:
|
||
case Type\Atomic\TLiteralInt::class:
|
||
case Type\Atomic\TFloat::class:
|
||
case Type\Atomic\TLiteralFloat::class:
|
||
case Type\Atomic\TBool::class:
|
||
case Type\Atomic\TTrue::class:
|
||
case Type\Atomic\TArray::class:
|
||
case Type\Atomic\TNonEmptyArray::class:
|
||
case Type\Atomic\ObjectLike::class:
|
||
case Type\Atomic\TString::class:
|
||
case Type\Atomic\TSingleLetter::class:
|
||
case Type\Atomic\TLiteralString::class:
|
||
case Type\Atomic\TLiteralClassString::class:
|
||
case Type\Atomic\TTemplateParamClass::class:
|
||
case Type\Atomic\TNumericString::class:
|
||
case Type\Atomic\THtmlEscapedString::class:
|
||
case Type\Atomic\TClassString::class:
|
||
case Type\Atomic\TIterable::class:
|
||
$invalid_method_call_types[] = (string)$lhs_type_part;
|
||
return;
|
||
|
||
case Type\Atomic\TTemplateParam::class:
|
||
case Type\Atomic\TEmptyMixed::class:
|
||
case Type\Atomic\TMixed::class:
|
||
case Type\Atomic\TNonEmptyMixed::class:
|
||
case Type\Atomic\TObject::class:
|
||
case Type\Atomic\TObjectWithProperties::class:
|
||
$codebase->analyzer->incrementMixedCount($statements_analyzer->getFilePath());
|
||
|
||
$has_mixed_method_call = true;
|
||
|
||
if ($context->check_methods) {
|
||
if (IssueBuffer::accepts(
|
||
new MixedMethodCall(
|
||
'Cannot determine the type of the object on the left hand side of this expression',
|
||
new CodeLocation($source, $stmt->name)
|
||
),
|
||
$statements_analyzer->getSuppressedIssues()
|
||
)) {
|
||
// fall through
|
||
}
|
||
}
|
||
|
||
if (self::checkFunctionArguments(
|
||
$statements_analyzer,
|
||
$stmt->args,
|
||
null,
|
||
null,
|
||
$context
|
||
) === false) {
|
||
return false;
|
||
}
|
||
|
||
$return_type = Type::getMixed();
|
||
return;
|
||
}
|
||
|
||
return;
|
||
}
|
||
|
||
$codebase->analyzer->incrementNonMixedCount($statements_analyzer->getFilePath());
|
||
|
||
$has_valid_method_call_type = true;
|
||
|
||
$fq_class_name = $lhs_type_part->value;
|
||
|
||
$intersection_types = $lhs_type_part->getIntersectionTypes();
|
||
|
||
$is_mock = ExpressionAnalyzer::isMock($fq_class_name);
|
||
|
||
$has_mock = $has_mock || $is_mock;
|
||
|
||
if ($fq_class_name === 'static') {
|
||
$fq_class_name = (string) $context->self;
|
||
}
|
||
|
||
if ($is_mock ||
|
||
$context->isPhantomClass($fq_class_name)
|
||
) {
|
||
$return_type = Type::getMixed();
|
||
|
||
if (self::checkFunctionArguments(
|
||
$statements_analyzer,
|
||
$stmt->args,
|
||
null,
|
||
null,
|
||
$context
|
||
) === false) {
|
||
return false;
|
||
}
|
||
|
||
return;
|
||
}
|
||
|
||
if ($lhs_var_id === '$this') {
|
||
$does_class_exist = true;
|
||
} else {
|
||
$does_class_exist = ClassLikeAnalyzer::checkFullyQualifiedClassLikeName(
|
||
$statements_analyzer,
|
||
$fq_class_name,
|
||
new CodeLocation($source, $stmt->var),
|
||
$statements_analyzer->getSuppressedIssues()
|
||
);
|
||
}
|
||
|
||
if (!$does_class_exist) {
|
||
return $does_class_exist;
|
||
}
|
||
|
||
if (!$stmt->name instanceof PhpParser\Node\Identifier) {
|
||
$return_type = Type::getMixed();
|
||
return true;
|
||
}
|
||
|
||
$method_name_lc = strtolower($stmt->name->name);
|
||
|
||
$method_id = $fq_class_name . '::' . $method_name_lc;
|
||
|
||
$intersection_method_id = $intersection_types
|
||
? '(' . $lhs_type_part . ')' . '::' . $stmt->name->name
|
||
: null;
|
||
|
||
$args = $stmt->args;
|
||
|
||
if (!$codebase->methods->methodExists($method_id)
|
||
|| !MethodAnalyzer::isMethodVisible(
|
||
$method_id,
|
||
$context->self,
|
||
$statements_analyzer->getSource()
|
||
)
|
||
) {
|
||
if ($codebase->methods->methodExists($fq_class_name . '::__call', $context->calling_method_id)) {
|
||
$class_storage = $codebase->classlike_storage_provider->get($fq_class_name);
|
||
|
||
if (isset($class_storage->pseudo_methods[$method_name_lc])) {
|
||
$has_valid_method_call_type = true;
|
||
$existent_method_ids[] = $method_id;
|
||
|
||
$pseudo_method_storage = $class_storage->pseudo_methods[$method_name_lc];
|
||
|
||
if (self::checkFunctionArguments(
|
||
$statements_analyzer,
|
||
$args,
|
||
$pseudo_method_storage->params,
|
||
$method_id,
|
||
$context
|
||
) === false) {
|
||
return false;
|
||
}
|
||
|
||
$generic_params = [];
|
||
|
||
if (self::checkFunctionLikeArgumentsMatch(
|
||
$statements_analyzer,
|
||
$args,
|
||
null,
|
||
$pseudo_method_storage->params,
|
||
$pseudo_method_storage,
|
||
null,
|
||
$generic_params,
|
||
new CodeLocation($source, $stmt),
|
||
$context
|
||
) === false) {
|
||
return false;
|
||
}
|
||
|
||
if ($pseudo_method_storage->return_type) {
|
||
$return_type_candidate = clone $pseudo_method_storage->return_type;
|
||
|
||
$return_type_candidate = ExpressionAnalyzer::fleshOutType(
|
||
$codebase,
|
||
$return_type_candidate,
|
||
$fq_class_name,
|
||
$fq_class_name
|
||
);
|
||
|
||
if (!$return_type) {
|
||
$return_type = $return_type_candidate;
|
||
} else {
|
||
$return_type = Type::combineUnionTypes($return_type_candidate, $return_type);
|
||
}
|
||
|
||
return;
|
||
}
|
||
} else {
|
||
if (self::checkFunctionArguments(
|
||
$statements_analyzer,
|
||
$args,
|
||
null,
|
||
null,
|
||
$context
|
||
) === false) {
|
||
return false;
|
||
}
|
||
|
||
if ($class_storage->sealed_methods) {
|
||
$non_existent_class_method_ids[] = $method_id;
|
||
return true;
|
||
}
|
||
}
|
||
|
||
$has_valid_method_call_type = true;
|
||
$existent_method_ids[] = $method_id;
|
||
|
||
$array_values = array_map(
|
||
/**
|
||
* @return PhpParser\Node\Expr\ArrayItem
|
||
*/
|
||
function (PhpParser\Node\Arg $arg) {
|
||
return new PhpParser\Node\Expr\ArrayItem($arg->value);
|
||
},
|
||
$args
|
||
);
|
||
|
||
$args = [
|
||
new PhpParser\Node\Arg(new PhpParser\Node\Scalar\String_($method_name_lc)),
|
||
new PhpParser\Node\Arg(new PhpParser\Node\Expr\Array_($array_values)),
|
||
];
|
||
|
||
$method_id = $fq_class_name . '::__call';
|
||
}
|
||
}
|
||
|
||
$source_source = $statements_analyzer->getSource();
|
||
|
||
/**
|
||
* @var \Psalm\Internal\Analyzer\ClassLikeAnalyzer|null
|
||
*/
|
||
$classlike_source = $source_source->getSource();
|
||
$classlike_source_fqcln = $classlike_source ? $classlike_source->getFQCLN() : null;
|
||
|
||
if ($lhs_var_id === '$this'
|
||
&& $context->self
|
||
&& $classlike_source_fqcln
|
||
&& $fq_class_name !== $context->self
|
||
&& $codebase->methodExists($context->self . '::' . $method_name_lc)
|
||
) {
|
||
$method_id = $context->self . '::' . $method_name_lc;
|
||
$fq_class_name = $context->self;
|
||
}
|
||
|
||
$check_visibility = true;
|
||
|
||
if ($intersection_types) {
|
||
foreach ($intersection_types as $intersection_type) {
|
||
if ($intersection_type instanceof TNamedObject
|
||
&& $codebase->interfaceExists($intersection_type->value)
|
||
) {
|
||
$interface_storage = $codebase->classlike_storage_provider->get($intersection_type->value);
|
||
|
||
$check_visibility = $check_visibility && !$interface_storage->override_method_visibility;
|
||
}
|
||
}
|
||
}
|
||
|
||
$is_interface = false;
|
||
|
||
if ($codebase->interfaceExists($fq_class_name)) {
|
||
$is_interface = true;
|
||
}
|
||
|
||
if ($intersection_types && !$codebase->methodExists($method_id)) {
|
||
if ($is_interface) {
|
||
$interface_storage = $codebase->classlike_storage_provider->get($fq_class_name);
|
||
|
||
$check_visibility = $check_visibility && !$interface_storage->override_method_visibility;
|
||
}
|
||
|
||
foreach ($intersection_types as $intersection_type) {
|
||
if ($intersection_type instanceof Type\Atomic\TTemplateParam) {
|
||
if (!$intersection_type->as->isMixed()
|
||
&& !$intersection_type->as->hasObject()
|
||
) {
|
||
$intersection_type = array_values(
|
||
$intersection_type->as->getTypes()
|
||
)[0];
|
||
|
||
if (!$intersection_type instanceof TNamedObject) {
|
||
throw new \UnexpectedValueException(
|
||
'Shouldn’t get a non-object generic param here'
|
||
);
|
||
}
|
||
|
||
$intersection_type->from_docblock = true;
|
||
} else {
|
||
continue;
|
||
}
|
||
}
|
||
|
||
$method_id = $intersection_type->value . '::' . $method_name_lc;
|
||
$fq_class_name = $intersection_type->value;
|
||
|
||
$does_class_exist = ClassLikeAnalyzer::checkFullyQualifiedClassLikeName(
|
||
$statements_analyzer,
|
||
$fq_class_name,
|
||
new CodeLocation($source, $stmt->var),
|
||
$statements_analyzer->getSuppressedIssues()
|
||
);
|
||
|
||
if (!$does_class_exist) {
|
||
return false;
|
||
}
|
||
|
||
if ($codebase->methodExists($method_id)) {
|
||
$is_interface = $codebase->interfaceExists($fq_class_name);
|
||
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
$source_method_id = $source instanceof FunctionLikeAnalyzer
|
||
? $source->getMethodId()
|
||
: null;
|
||
|
||
if (!$codebase->methods->methodExists(
|
||
$method_id,
|
||
$context->calling_method_id,
|
||
$method_id !== $source_method_id ? new CodeLocation($source, $stmt->name) : null
|
||
)) {
|
||
if ($config->use_phpdoc_method_without_magic_or_parent) {
|
||
$class_storage = $codebase->classlike_storage_provider->get($fq_class_name);
|
||
|
||
if (isset($class_storage->pseudo_methods[$method_name_lc])) {
|
||
$has_valid_method_call_type = true;
|
||
$existent_method_ids[] = $method_id;
|
||
|
||
$pseudo_method_storage = $class_storage->pseudo_methods[$method_name_lc];
|
||
|
||
if (self::checkFunctionArguments(
|
||
$statements_analyzer,
|
||
$args,
|
||
$pseudo_method_storage->params,
|
||
$method_id,
|
||
$context
|
||
) === false) {
|
||
return false;
|
||
}
|
||
|
||
$generic_params = [];
|
||
|
||
if (self::checkFunctionLikeArgumentsMatch(
|
||
$statements_analyzer,
|
||
$args,
|
||
null,
|
||
$pseudo_method_storage->params,
|
||
$pseudo_method_storage,
|
||
null,
|
||
$generic_params,
|
||
new CodeLocation($source, $stmt->name),
|
||
$context
|
||
) === false) {
|
||
return false;
|
||
}
|
||
|
||
if ($pseudo_method_storage->return_type) {
|
||
$return_type_candidate = clone $pseudo_method_storage->return_type;
|
||
|
||
if (!$return_type) {
|
||
$return_type = $return_type_candidate;
|
||
} else {
|
||
$return_type = Type::combineUnionTypes($return_type_candidate, $return_type);
|
||
}
|
||
|
||
return;
|
||
}
|
||
|
||
$return_type = Type::getMixed();
|
||
|
||
return;
|
||
}
|
||
}
|
||
|
||
if ($is_interface) {
|
||
$non_existent_interface_method_ids[] = $intersection_method_id ?: $method_id;
|
||
} else {
|
||
$non_existent_class_method_ids[] = $intersection_method_id ?: $method_id;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
if ($context->collect_initializations && $context->calling_method_id) {
|
||
list($calling_method_class) = explode('::', $context->calling_method_id);
|
||
$codebase->file_reference_provider->addReferenceToClassMethod(
|
||
$calling_method_class . '::__construct',
|
||
strtolower($method_id)
|
||
);
|
||
}
|
||
|
||
$existent_method_ids[] = $method_id;
|
||
|
||
if ($stmt->var instanceof PhpParser\Node\Expr\Variable
|
||
&& ($context->collect_initializations || $context->collect_mutations)
|
||
&& $stmt->var->name === 'this'
|
||
&& $source instanceof FunctionLikeAnalyzer
|
||
) {
|
||
self::collectSpecialInformation($source, $stmt->name->name, $context);
|
||
}
|
||
|
||
$fq_class_name = $codebase->classlikes->getUnAliasedName($fq_class_name);
|
||
|
||
$class_storage = $codebase->methods->getClassLikeStorageForMethod($method_id);
|
||
|
||
$class_template_params = self::getClassTemplateParams(
|
||
$codebase,
|
||
$class_storage,
|
||
$fq_class_name,
|
||
$method_name_lc,
|
||
$lhs_type_part,
|
||
$lhs_var_id
|
||
);
|
||
|
||
if (self::checkMethodArgs(
|
||
$method_id,
|
||
$args,
|
||
$class_template_params,
|
||
$context,
|
||
new CodeLocation($source, $stmt->name),
|
||
$statements_analyzer
|
||
) === false) {
|
||
return false;
|
||
}
|
||
|
||
switch (strtolower($stmt->name->name)) {
|
||
case '__tostring':
|
||
$return_type = Type::getString();
|
||
return;
|
||
}
|
||
|
||
$call_map_id = strtolower(
|
||
$codebase->methods->getDeclaringMethodId($method_id) ?: $method_id
|
||
);
|
||
|
||
$appearing_method_id = $codebase->methods->getAppearingMethodId($method_id);
|
||
$declaring_method_id = $codebase->methods->getDeclaringMethodId($method_id);
|
||
|
||
if ($method_name_lc === '__tostring') {
|
||
$return_type_candidate = Type::getString();
|
||
} elseif ($appearing_method_id
|
||
&& $declaring_method_id
|
||
&& $codebase->methods->return_type_provider->has($appearing_method_id)
|
||
) {
|
||
$return_type_candidate = $codebase->methods->return_type_provider->getReturnType(
|
||
$statements_analyzer,
|
||
$method_id,
|
||
$appearing_method_id,
|
||
$declaring_method_id,
|
||
$stmt->args,
|
||
$context,
|
||
new CodeLocation($statements_analyzer->getSource(), $stmt->name)
|
||
);
|
||
} elseif ($call_map_id && CallMap::inCallMap($call_map_id)) {
|
||
if (($class_template_params || $class_storage->stubbed)
|
||
&& isset($class_storage->methods[$method_name_lc])
|
||
&& ($method_storage = $class_storage->methods[$method_name_lc])
|
||
&& $method_storage->return_type
|
||
) {
|
||
$return_type_candidate = clone $method_storage->return_type;
|
||
|
||
if ($class_template_params) {
|
||
$return_type_candidate->replaceTemplateTypesWithArgTypes(
|
||
$class_template_params,
|
||
$codebase
|
||
);
|
||
}
|
||
} else {
|
||
if ($call_map_id === 'domnode::appendchild'
|
||
&& isset($args[0]->value->inferredType)
|
||
&& $args[0]->value->inferredType->hasObjectType()
|
||
) {
|
||
$return_type_candidate = clone $args[0]->value->inferredType;
|
||
} elseif ($call_map_id === 'simplexmlelement::asxml' && !count($args)) {
|
||
$return_type_candidate = Type::parseString('string|false');
|
||
} else {
|
||
$return_type_candidate = CallMap::getReturnTypeFromCallMap($call_map_id);
|
||
if ($return_type_candidate->isFalsable()) {
|
||
$return_type_candidate->ignore_falsable_issues = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
$return_type_candidate = ExpressionAnalyzer::fleshOutType(
|
||
$codebase,
|
||
$return_type_candidate,
|
||
$fq_class_name,
|
||
$lhs_type_part
|
||
);
|
||
} else {
|
||
$name_code_location = new CodeLocation($source, $stmt->name);
|
||
|
||
if ($check_visibility) {
|
||
if (MethodAnalyzer::checkMethodVisibility(
|
||
$method_id,
|
||
$context->self,
|
||
$statements_analyzer->getSource(),
|
||
$name_code_location,
|
||
$statements_analyzer->getSuppressedIssues()
|
||
) === false) {
|
||
return false;
|
||
}
|
||
}
|
||
|
||
if (MethodAnalyzer::checkMethodNotDeprecatedOrInternal(
|
||
$codebase,
|
||
$context,
|
||
$method_id,
|
||
$name_code_location,
|
||
$statements_analyzer->getSuppressedIssues()
|
||
) === false) {
|
||
return false;
|
||
}
|
||
|
||
if (!self::checkMagicGetterOrSetterProperty(
|
||
$statements_analyzer,
|
||
$stmt,
|
||
$fq_class_name
|
||
)) {
|
||
return false;
|
||
}
|
||
|
||
$self_fq_class_name = $fq_class_name;
|
||
|
||
$return_type_candidate = $codebase->methods->getMethodReturnType(
|
||
$method_id,
|
||
$self_fq_class_name,
|
||
$args
|
||
);
|
||
|
||
if ($codebase->server_mode && $method_id) {
|
||
$codebase->analyzer->addNodeReference(
|
||
$statements_analyzer->getFilePath(),
|
||
$stmt->name,
|
||
$method_id . '()'
|
||
);
|
||
}
|
||
|
||
if (isset($stmt->inferredType)) {
|
||
$return_type_candidate = $stmt->inferredType;
|
||
}
|
||
|
||
if ($return_type_candidate) {
|
||
$return_type_candidate = clone $return_type_candidate;
|
||
|
||
if ($class_template_params) {
|
||
$return_type_candidate->replaceTemplateTypesWithArgTypes(
|
||
$class_template_params,
|
||
$codebase
|
||
);
|
||
}
|
||
|
||
$return_type_candidate = ExpressionAnalyzer::fleshOutType(
|
||
$codebase,
|
||
$return_type_candidate,
|
||
$self_fq_class_name,
|
||
$lhs_type_part
|
||
);
|
||
|
||
$return_type_location = $codebase->methods->getMethodReturnTypeLocation(
|
||
$method_id,
|
||
$secondary_return_type_location
|
||
);
|
||
|
||
if ($secondary_return_type_location) {
|
||
$return_type_location = $secondary_return_type_location;
|
||
}
|
||
|
||
// only check the type locally if it's defined externally
|
||
if ($return_type_location && !$config->isInProjectDirs($return_type_location->file_path)) {
|
||
$return_type_candidate->check(
|
||
$statements_analyzer,
|
||
new CodeLocation($source, $stmt),
|
||
$statements_analyzer->getSuppressedIssues(),
|
||
$context->phantom_classes
|
||
);
|
||
}
|
||
} else {
|
||
$returns_by_ref =
|
||
$returns_by_ref
|
||
|| $codebase->methods->getMethodReturnsByRef($method_id);
|
||
}
|
||
|
||
$method_storage = $codebase->methods->getUserMethodStorage($method_id);
|
||
|
||
if ($method_storage) {
|
||
if ($method_storage->assertions) {
|
||
self::applyAssertionsToContext(
|
||
$stmt->name,
|
||
$method_storage->assertions,
|
||
$args,
|
||
$class_template_params ?: [],
|
||
$context,
|
||
$statements_analyzer
|
||
);
|
||
}
|
||
|
||
if ($method_storage->if_true_assertions) {
|
||
$stmt->ifTrueAssertions = array_map(
|
||
function (Assertion $assertion) use ($class_template_params) : Assertion {
|
||
return $assertion->getUntemplatedCopy($class_template_params ?: []);
|
||
},
|
||
$method_storage->if_true_assertions
|
||
);
|
||
}
|
||
|
||
if ($method_storage->if_false_assertions) {
|
||
$stmt->ifFalseAssertions = array_map(
|
||
function (Assertion $assertion) use ($class_template_params) : Assertion {
|
||
return $assertion->getUntemplatedCopy($class_template_params ?: []);
|
||
},
|
||
$method_storage->if_false_assertions
|
||
);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!$args && $lhs_var_id) {
|
||
if ($config->memoize_method_calls) {
|
||
$method_var_id = $lhs_var_id . '->' . $method_name_lc . '()';
|
||
|
||
if (isset($context->vars_in_scope[$method_var_id])) {
|
||
$return_type_candidate = clone $context->vars_in_scope[$method_var_id];
|
||
} elseif ($return_type_candidate) {
|
||
$context->vars_in_scope[$method_var_id] = $return_type_candidate;
|
||
}
|
||
}
|
||
}
|
||
|
||
if ($config->after_method_checks) {
|
||
$file_manipulations = [];
|
||
|
||
if ($appearing_method_id && $declaring_method_id) {
|
||
foreach ($config->after_method_checks as $plugin_fq_class_name) {
|
||
$plugin_fq_class_name::afterMethodCallAnalysis(
|
||
$stmt,
|
||
$method_id,
|
||
$appearing_method_id,
|
||
$declaring_method_id,
|
||
$context,
|
||
$source,
|
||
$codebase,
|
||
$file_manipulations,
|
||
$return_type_candidate
|
||
);
|
||
}
|
||
}
|
||
|
||
if ($file_manipulations) {
|
||
/** @psalm-suppress MixedTypeCoercion */
|
||
FileManipulationBuffer::add($statements_analyzer->getFilePath(), $file_manipulations);
|
||
}
|
||
}
|
||
|
||
if ($return_type_candidate) {
|
||
if (!$return_type) {
|
||
$return_type = $return_type_candidate;
|
||
} else {
|
||
$return_type = Type::combineUnionTypes($return_type_candidate, $return_type);
|
||
}
|
||
} else {
|
||
$return_type = Type::getMixed();
|
||
}
|
||
}
|
||
|
||
/**
|
||
* @return array<string, array{Type\Union, string|null, ?int}>|null
|
||
*/
|
||
public static function getClassTemplateParams(
|
||
Codebase $codebase,
|
||
ClassLikeStorage $class_storage,
|
||
string $fq_class_name,
|
||
string $method_name = null,
|
||
Type\Atomic $lhs_type_part = null,
|
||
string $lhs_var_id = null
|
||
) {
|
||
$calling_class_storage = $codebase->classlike_storage_provider->get($fq_class_name);
|
||
|
||
$template_types = $class_storage->template_types;
|
||
|
||
if (!$template_types) {
|
||
if ($calling_class_storage->template_type_extends
|
||
&& $method_name
|
||
&& !empty($class_storage->overridden_method_ids[$method_name])
|
||
&& !isset($class_storage->methods[$method_name]->return_type)
|
||
) {
|
||
foreach ($class_storage->overridden_method_ids[$method_name] as $overridden_method_id) {
|
||
$overridden_storage = $codebase->methods->getStorage($overridden_method_id);
|
||
|
||
if (!$overridden_storage->return_type) {
|
||
return null;
|
||
}
|
||
|
||
if ($overridden_storage->return_type->isNull()) {
|
||
return null;
|
||
}
|
||
|
||
list($fq_overridden_class) = explode('::', $overridden_method_id);
|
||
|
||
$overridden_class_storage = $codebase->classlike_storage_provider->get($fq_overridden_class);
|
||
|
||
$template_types = $overridden_class_storage->template_types;
|
||
$class_storage = $overridden_class_storage;
|
||
}
|
||
}
|
||
|
||
if (!$template_types) {
|
||
return null;
|
||
}
|
||
}
|
||
|
||
$class_template_params = [];
|
||
$e = $calling_class_storage->template_type_extends;
|
||
|
||
if ($lhs_type_part instanceof TGenericObject) {
|
||
if ($calling_class_storage->template_types && $class_storage === $calling_class_storage) {
|
||
$i = 0;
|
||
foreach ($calling_class_storage->template_types as $type_name => $_) {
|
||
if (isset($lhs_type_part->type_params[$i])) {
|
||
$class_template_params[$type_name] = [
|
||
$lhs_type_part->type_params[$i],
|
||
$calling_class_storage->name,
|
||
0,
|
||
];
|
||
}
|
||
|
||
$i++;
|
||
}
|
||
}
|
||
|
||
$i = 0;
|
||
foreach ($template_types as $type_name => $_) {
|
||
if (isset($class_template_params[$type_name])) {
|
||
$i++;
|
||
continue;
|
||
}
|
||
|
||
if ($class_storage !== $calling_class_storage
|
||
&& isset($e[strtolower($class_storage->name)][$type_name])
|
||
) {
|
||
$type_extends = $e[strtolower($class_storage->name)][$type_name];
|
||
|
||
if ($type_extends instanceof Type\Atomic\TTemplateParam) {
|
||
if (isset($calling_class_storage->template_types[$type_extends->param_name])) {
|
||
$mapped_offset = array_search(
|
||
$type_extends->param_name,
|
||
array_keys($calling_class_storage->template_types)
|
||
);
|
||
|
||
if (isset($lhs_type_part->type_params[(int) $mapped_offset])) {
|
||
$class_template_params[$type_name] = [
|
||
$lhs_type_part->type_params[(int) $mapped_offset],
|
||
$class_storage->name,
|
||
0,
|
||
];
|
||
}
|
||
} elseif ($type_extends->defining_class
|
||
&& isset(
|
||
$calling_class_storage
|
||
->template_type_extends
|
||
[strtolower($type_extends->defining_class)]
|
||
[$type_extends->param_name]
|
||
)
|
||
) {
|
||
$mapped_offset = array_search(
|
||
$type_extends->param_name,
|
||
array_keys($calling_class_storage
|
||
->template_type_extends
|
||
[strtolower($type_extends->defining_class)])
|
||
);
|
||
|
||
if (isset($lhs_type_part->type_params[(int) $mapped_offset])) {
|
||
$class_template_params[$type_name] = [
|
||
$lhs_type_part->type_params[(int) $mapped_offset],
|
||
$class_storage->name,
|
||
0,
|
||
];
|
||
}
|
||
}
|
||
} else {
|
||
$class_template_params[$type_name] = [
|
||
new Type\Union([$type_extends]),
|
||
$class_storage->name,
|
||
0,
|
||
];
|
||
}
|
||
}
|
||
|
||
if (!isset($class_template_params[$type_name])) {
|
||
$class_template_params[$type_name] = [Type::getMixed(), null, 0];
|
||
}
|
||
|
||
$i++;
|
||
}
|
||
} else {
|
||
foreach ($template_types as $type_name => list($type)) {
|
||
if ($class_storage !== $calling_class_storage
|
||
&& isset($e[strtolower($class_storage->name)][$type_name])
|
||
) {
|
||
$type_extends = $e[strtolower($class_storage->name)][$type_name];
|
||
if (!$type_extends instanceof Type\Atomic\TTemplateParam) {
|
||
$class_template_params[$type_name] = [
|
||
new Type\Union([$type_extends]),
|
||
$class_storage->name,
|
||
0,
|
||
];
|
||
} elseif ($type_extends->as) {
|
||
$class_template_params[$type_name] = [
|
||
$type_extends->as,
|
||
$class_storage->name,
|
||
0,
|
||
];
|
||
}
|
||
}
|
||
|
||
if ($lhs_var_id !== '$this') {
|
||
if (!isset($class_template_params[$type_name])) {
|
||
$class_template_params[$type_name] = [$type, $class_storage->name, 0];
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
return $class_template_params;
|
||
}
|
||
|
||
/**
|
||
* Check properties accessed with magic getters and setters.
|
||
* If `@psalm-seal-properties` is set, they must be defined.
|
||
* If an `@property` annotation is specified, the setter must set something with the correct
|
||
* type.
|
||
*
|
||
* @param StatementsAnalyzer $statements_analyzer
|
||
* @param PhpParser\Node\Expr\MethodCall $stmt
|
||
* @param string $fq_class_name
|
||
*
|
||
* @return bool
|
||
*/
|
||
private static function checkMagicGetterOrSetterProperty(
|
||
StatementsAnalyzer $statements_analyzer,
|
||
PhpParser\Node\Expr\MethodCall $stmt,
|
||
$fq_class_name
|
||
) {
|
||
if (!$stmt->name instanceof PhpParser\Node\Identifier) {
|
||
return true;
|
||
}
|
||
|
||
$method_name = strtolower($stmt->name->name);
|
||
if (!in_array($method_name, ['__get', '__set'], true)) {
|
||
return true;
|
||
}
|
||
|
||
$first_arg_value = $stmt->args[0]->value;
|
||
if (!$first_arg_value instanceof PhpParser\Node\Scalar\String_) {
|
||
return true;
|
||
}
|
||
|
||
$prop_name = $first_arg_value->value;
|
||
$property_id = $fq_class_name . '::$' . $prop_name;
|
||
$codebase = $statements_analyzer->getCodebase();
|
||
$class_storage = $codebase->classlike_storage_provider->get($fq_class_name);
|
||
|
||
switch ($method_name) {
|
||
case '__set':
|
||
// If `@psalm-seal-properties` is set, the property must be defined with
|
||
// a `@property` annotation
|
||
if ($class_storage->sealed_properties
|
||
&& !isset($class_storage->pseudo_property_set_types['$' . $prop_name])
|
||
&& IssueBuffer::accepts(
|
||
new UndefinedThisPropertyAssignment(
|
||
'Instance property ' . $property_id . ' is not defined',
|
||
new CodeLocation($statements_analyzer->getSource(), $stmt),
|
||
$property_id
|
||
),
|
||
$statements_analyzer->getSuppressedIssues()
|
||
)
|
||
) {
|
||
return false;
|
||
}
|
||
|
||
// If a `@property` annotation is set, the type of the value passed to the
|
||
// magic setter must match the annotation.
|
||
$second_arg_type = isset($stmt->args[1]->value->inferredType)
|
||
? $stmt->args[1]->value->inferredType
|
||
: null;
|
||
|
||
if (isset($class_storage->pseudo_property_set_types['$' . $prop_name]) && $second_arg_type) {
|
||
$pseudo_set_type = ExpressionAnalyzer::fleshOutType(
|
||
$codebase,
|
||
$class_storage->pseudo_property_set_types['$' . $prop_name],
|
||
$fq_class_name,
|
||
new Type\Atomic\TNamedObject($fq_class_name)
|
||
);
|
||
|
||
$type_match_found = TypeAnalyzer::isContainedBy(
|
||
$codebase,
|
||
$second_arg_type,
|
||
$pseudo_set_type,
|
||
$second_arg_type->ignore_nullable_issues,
|
||
$second_arg_type->ignore_falsable_issues,
|
||
$has_scalar_match,
|
||
$type_coerced,
|
||
$type_coerced_from_mixed,
|
||
$to_string_cast
|
||
);
|
||
|
||
if ($type_coerced) {
|
||
if ($type_coerced_from_mixed) {
|
||
if (IssueBuffer::accepts(
|
||
new MixedTypeCoercion(
|
||
$prop_name . ' expects \'' . $pseudo_set_type . '\', '
|
||
. ' parent type `' . $second_arg_type . '` provided',
|
||
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
||
),
|
||
$statements_analyzer->getSuppressedIssues()
|
||
)) {
|
||
// keep soldiering on
|
||
}
|
||
} else {
|
||
if (IssueBuffer::accepts(
|
||
new TypeCoercion(
|
||
$prop_name . ' expects \'' . $pseudo_set_type . '\', '
|
||
. ' parent type `' . $second_arg_type . '` provided',
|
||
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
||
),
|
||
$statements_analyzer->getSuppressedIssues()
|
||
)) {
|
||
// keep soldiering on
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!$type_match_found && !$type_coerced_from_mixed) {
|
||
if (TypeAnalyzer::canBeContainedBy(
|
||
$codebase,
|
||
$second_arg_type,
|
||
$pseudo_set_type
|
||
)) {
|
||
if (IssueBuffer::accepts(
|
||
new PossiblyInvalidPropertyAssignmentValue(
|
||
$prop_name . ' with declared type \''
|
||
. $pseudo_set_type
|
||
. '\' cannot be assigned possibly different type \'' . $second_arg_type . '\'',
|
||
new CodeLocation($statements_analyzer->getSource(), $stmt),
|
||
$property_id
|
||
),
|
||
$statements_analyzer->getSuppressedIssues()
|
||
)) {
|
||
return false;
|
||
}
|
||
} else {
|
||
if (IssueBuffer::accepts(
|
||
new InvalidPropertyAssignmentValue(
|
||
$prop_name . ' with declared type \''
|
||
. $pseudo_set_type
|
||
. '\' cannot be assigned type \'' . $second_arg_type . '\'',
|
||
new CodeLocation($statements_analyzer->getSource(), $stmt),
|
||
$property_id
|
||
),
|
||
$statements_analyzer->getSuppressedIssues()
|
||
)) {
|
||
return false;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
|
||
case '__get':
|
||
// If `@psalm-seal-properties` is set, the property must be defined with
|
||
// a `@property` annotation
|
||
if ($class_storage->sealed_properties
|
||
&& !isset($class_storage->pseudo_property_get_types['$' . $prop_name])
|
||
&& IssueBuffer::accepts(
|
||
new UndefinedThisPropertyFetch(
|
||
'Instance property ' . $property_id . ' is not defined',
|
||
new CodeLocation($statements_analyzer->getSource(), $stmt),
|
||
$property_id
|
||
),
|
||
$statements_analyzer->getSuppressedIssues()
|
||
)
|
||
) {
|
||
return false;
|
||
}
|
||
|
||
if (isset($class_storage->pseudo_property_get_types['$' . $prop_name])) {
|
||
$stmt->inferredType = clone $class_storage->pseudo_property_get_types['$' . $prop_name];
|
||
}
|
||
|
||
break;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
}
|