mirror of
https://github.com/danog/psalm.git
synced 2024-12-15 10:57:08 +01:00
931 lines
38 KiB
PHP
931 lines
38 KiB
PHP
<?php
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namespace Psalm\Internal\Analyzer;
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use Psalm\Codebase;
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use Psalm\CodeLocation;
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use Psalm\Internal\Analyzer\Statements\ExpressionAnalyzer;
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use Psalm\Internal\MethodIdentifier;
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use Psalm\Issue\ImplementedParamTypeMismatch;
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use Psalm\Issue\ImplementedReturnTypeMismatch;
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use Psalm\Issue\MethodSignatureMismatch;
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use Psalm\Issue\MoreSpecificImplementedParamType;
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use Psalm\Issue\LessSpecificImplementedReturnType;
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use Psalm\Issue\OverriddenMethodAccess;
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use Psalm\Issue\TraitMethodSignatureMismatch;
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use Psalm\IssueBuffer;
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use Psalm\Storage\ClassLikeStorage;
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use Psalm\Storage\FunctionLikeParameter;
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use Psalm\Storage\MethodStorage;
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use Psalm\Type;
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use function strtolower;
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use function is_string;
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use function in_array;
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use Psalm\Issue\MissingImmutableAnnotation;
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class MethodComparator
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{
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/**
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* @param ClassLikeStorage $implementer_classlike_storage
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* @param ClassLikeStorage $guide_classlike_storage
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* @param MethodStorage $implementer_method_storage
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* @param MethodStorage $guide_method_storage
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* @param CodeLocation $code_location
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* @param string[] $suppressed_issues
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* @param bool $prevent_abstract_override
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* @param bool $prevent_method_signature_mismatch
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*
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* @return false|null
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*/
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public static function compare(
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Codebase $codebase,
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ClassLikeStorage $implementer_classlike_storage,
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ClassLikeStorage $guide_classlike_storage,
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MethodStorage $implementer_method_storage,
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MethodStorage $guide_method_storage,
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string $implementer_called_class_name,
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int $implementer_visibility,
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CodeLocation $code_location,
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array $suppressed_issues,
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$prevent_abstract_override = true,
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$prevent_method_signature_mismatch = true
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) {
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$implementer_declaring_method_id = $codebase->methods->getDeclaringMethodId(
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new MethodIdentifier(
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$implementer_classlike_storage->name,
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strtolower($guide_method_storage->cased_name ?: '')
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)
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);
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$cased_implementer_method_id = $implementer_classlike_storage->name . '::'
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. $implementer_method_storage->cased_name;
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$cased_guide_method_id = $guide_classlike_storage->name . '::' . $guide_method_storage->cased_name;
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self::checkForObviousMethodMismatches(
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$guide_classlike_storage,
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$implementer_classlike_storage,
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$guide_method_storage,
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$implementer_method_storage,
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$guide_method_storage->visibility,
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$implementer_visibility,
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$cased_guide_method_id,
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$cased_implementer_method_id,
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$prevent_method_signature_mismatch,
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$prevent_abstract_override,
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$code_location,
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$suppressed_issues
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);
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if ($guide_method_storage->signature_return_type && $prevent_method_signature_mismatch) {
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self::compareMethodSignatureReturnTypes(
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$codebase,
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$guide_classlike_storage,
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$implementer_classlike_storage,
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$guide_method_storage,
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$implementer_method_storage,
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$guide_method_storage->signature_return_type,
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$cased_guide_method_id,
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$implementer_called_class_name,
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$cased_implementer_method_id,
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$code_location,
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$suppressed_issues
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);
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}
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if ($guide_method_storage->return_type
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&& $implementer_method_storage->return_type
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&& !$implementer_method_storage->inherited_return_type
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&& ($guide_method_storage->signature_return_type !== $guide_method_storage->return_type
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|| $implementer_method_storage->signature_return_type !== $implementer_method_storage->return_type)
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&& $implementer_classlike_storage->user_defined
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&& (!$guide_classlike_storage->stubbed || $guide_classlike_storage->template_types)
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) {
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self::compareMethodDocblockReturnTypes(
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$codebase,
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$guide_classlike_storage,
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$implementer_classlike_storage,
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$implementer_method_storage,
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$guide_method_storage->return_type,
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$implementer_method_storage->return_type,
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$cased_guide_method_id,
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$implementer_called_class_name,
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$implementer_declaring_method_id,
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$code_location,
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$suppressed_issues
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);
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}
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foreach ($guide_method_storage->params as $i => $guide_param) {
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if (!isset($implementer_method_storage->params[$i])) {
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if (!$prevent_abstract_override && $i >= $guide_method_storage->required_param_count) {
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continue;
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}
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if (IssueBuffer::accepts(
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new MethodSignatureMismatch(
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'Method ' . $cased_implementer_method_id . ' has fewer parameters than parent method ' .
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$cased_guide_method_id,
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$code_location
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)
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)) {
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return false;
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}
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return null;
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}
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self::compareMethodParams(
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$codebase,
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$implementer_classlike_storage,
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$guide_classlike_storage,
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$implementer_called_class_name,
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$guide_method_storage,
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$implementer_method_storage,
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$guide_param,
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$implementer_method_storage->params[$i],
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$i,
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$cased_guide_method_id,
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$cased_implementer_method_id,
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$prevent_method_signature_mismatch,
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$code_location,
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$suppressed_issues
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);
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}
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if ($guide_classlike_storage->user_defined
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&& ($guide_classlike_storage->is_interface || $implementer_method_storage->cased_name !== '__construct')
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&& $implementer_method_storage->required_param_count > $guide_method_storage->required_param_count
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) {
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if (IssueBuffer::accepts(
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new MethodSignatureMismatch(
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'Method ' . $cased_implementer_method_id . ' has more required parameters than parent method ' .
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$cased_guide_method_id,
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$code_location
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)
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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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}
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/**
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* @param string[] $suppressed_issues
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*/
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private static function checkForObviousMethodMismatches(
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ClassLikeStorage $guide_classlike_storage,
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ClassLikeStorage $implementer_classlike_storage,
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MethodStorage $guide_method_storage,
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MethodStorage $implementer_method_storage,
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int $guide_visibility,
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int $implementer_visibility,
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string $cased_guide_method_id,
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string $cased_implementer_method_id,
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bool $prevent_method_signature_mismatch,
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bool $prevent_abstract_override,
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CodeLocation $code_location,
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array $suppressed_issues
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) : void {
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if ($implementer_visibility > $guide_visibility) {
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if ($guide_classlike_storage->is_trait === $implementer_classlike_storage->is_trait
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|| !in_array($guide_classlike_storage->name, $implementer_classlike_storage->used_traits)
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|| $implementer_method_storage->defining_fqcln !== $implementer_classlike_storage->name
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|| (!$implementer_method_storage->abstract
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&& !$guide_method_storage->abstract)
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) {
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if (IssueBuffer::accepts(
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new OverriddenMethodAccess(
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'Method ' . $cased_implementer_method_id . ' has different access level than '
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. $cased_guide_method_id,
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$code_location
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)
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)) {
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// fall through
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}
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} elseif (IssueBuffer::accepts(
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new TraitMethodSignatureMismatch(
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'Method ' . $cased_implementer_method_id . ' has different access level than '
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. $cased_guide_method_id,
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$code_location
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)
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)) {
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// fall through
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}
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}
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if ($guide_method_storage->final
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&& $prevent_method_signature_mismatch
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&& $prevent_abstract_override
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) {
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if (IssueBuffer::accepts(
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new MethodSignatureMismatch(
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'Method ' . $cased_guide_method_id . ' is declared final and cannot be overridden',
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$code_location
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)
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)) {
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// fall through
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}
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}
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if ($prevent_abstract_override
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&& !$guide_method_storage->abstract
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&& $implementer_method_storage->abstract
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&& !$guide_classlike_storage->abstract
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&& !$guide_classlike_storage->is_interface
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) {
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if (IssueBuffer::accepts(
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new MethodSignatureMismatch(
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'Method ' . $cased_implementer_method_id . ' cannot be abstract when inherited method '
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. $cased_guide_method_id . ' is non-abstract',
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$code_location
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)
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)) {
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// fall through
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}
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}
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if ($guide_method_storage->external_mutation_free
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&& !$implementer_method_storage->external_mutation_free
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&& !$guide_method_storage->mutation_free_inferred
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&& $prevent_method_signature_mismatch
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) {
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if (IssueBuffer::accepts(
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new MissingImmutableAnnotation(
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$cased_guide_method_id . ' is marked immutable, but '
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. $implementer_classlike_storage->name . '::'
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. ($guide_method_storage->cased_name ?: '')
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. ' is not marked immutable',
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$code_location
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),
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$suppressed_issues
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)) {
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// fall through
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}
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}
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}
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/**
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* @param string[] $suppressed_issues
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*/
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private static function compareMethodParams(
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Codebase $codebase,
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ClassLikeStorage $implementer_classlike_storage,
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ClassLikeStorage $guide_classlike_storage,
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string $implementer_called_class_name,
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MethodStorage $guide_method_storage,
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MethodStorage $implementer_method_storage,
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FunctionLikeParameter $guide_param,
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FunctionLikeParameter $implementer_param,
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int $i,
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string $cased_guide_method_id,
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string $cased_implementer_method_id,
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bool $prevent_method_signature_mismatch,
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CodeLocation $code_location,
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array $suppressed_issues
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) : void {
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if ($prevent_method_signature_mismatch) {
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if (!$guide_classlike_storage->user_defined
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&& $guide_param->type
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) {
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$implementer_param_type = $implementer_param->signature_type;
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$guide_param_signature_type = $guide_param->type;
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$or_null_guide_param_signature_type = $guide_param->signature_type
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? clone $guide_param->signature_type
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: null;
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if ($or_null_guide_param_signature_type) {
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$or_null_guide_param_signature_type->addType(new Type\Atomic\TNull);
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}
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if ($cased_guide_method_id === 'Serializable::unserialize') {
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$guide_param_signature_type = null;
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$or_null_guide_param_signature_type = null;
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}
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if (!$guide_param->type->hasMixed()
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&& !$guide_param->type->from_docblock
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&& ($implementer_param_type || $guide_param_signature_type)
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) {
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$config = \Psalm\Config::getInstance();
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if ($implementer_param_type
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&& (!$guide_param_signature_type
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|| strtolower($implementer_param_type->getId())
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!== strtolower($guide_param_signature_type->getId()))
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&& (!$or_null_guide_param_signature_type
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|| strtolower($implementer_param_type->getId())
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!== strtolower($or_null_guide_param_signature_type->getId()))
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) {
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if (IssueBuffer::accepts(
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new MethodSignatureMismatch(
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'Argument ' . ($i + 1) . ' of ' . $cased_implementer_method_id . ' has wrong type \'' .
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$implementer_param_type . '\', expecting \'' .
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$guide_param_signature_type . '\' as defined by ' .
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$cased_guide_method_id,
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$implementer_param->location
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&& $config->isInProjectDirs(
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$implementer_param->location->file_path
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)
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? $implementer_param->location
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: $code_location
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)
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)) {
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// fall through
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}
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return;
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}
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}
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}
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if ($guide_classlike_storage->user_defined
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&& $implementer_param->signature_type
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) {
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self::compareMethodSignatureParams(
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$codebase,
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$i,
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$guide_classlike_storage,
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$implementer_classlike_storage,
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$guide_method_storage,
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$implementer_method_storage,
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$guide_param,
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$implementer_param->signature_type,
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$cased_guide_method_id,
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$cased_implementer_method_id,
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$code_location,
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$suppressed_issues
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);
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}
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}
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if ($implementer_param->type
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&& $guide_param->type
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&& $implementer_param->type->getId() !== $guide_param->type->getId()
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) {
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self::compareMethodDocblockParams(
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$codebase,
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$i,
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$guide_classlike_storage,
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$implementer_classlike_storage,
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$implementer_called_class_name,
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$guide_method_storage,
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$implementer_method_storage,
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$cased_guide_method_id,
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$cased_implementer_method_id,
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$guide_param->type,
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$implementer_param->type,
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$code_location,
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$suppressed_issues
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);
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}
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if ($guide_classlike_storage->user_defined && $implementer_param->by_ref !== $guide_param->by_ref) {
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$config = \Psalm\Config::getInstance();
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if (IssueBuffer::accepts(
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new MethodSignatureMismatch(
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'Argument ' . ($i + 1) . ' of ' . $cased_implementer_method_id . ' is' .
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($implementer_param->by_ref ? '' : ' not') . ' passed by reference, but argument ' .
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($i + 1) . ' of ' . $cased_guide_method_id . ' is' . ($guide_param->by_ref ? '' : ' not'),
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$implementer_param->location
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&& $config->isInProjectDirs(
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$implementer_param->location->file_path
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)
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? $implementer_param->location
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: $code_location
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)
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)) {
|
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// fall through
|
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}
|
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}
|
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}
|
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|
|
/**
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* @param string[] $suppressed_issues
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*/
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private static function compareMethodSignatureParams(
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Codebase $codebase,
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int $i,
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ClassLikeStorage $guide_classlike_storage,
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ClassLikeStorage $implementer_classlike_storage,
|
|
MethodStorage $guide_method_storage,
|
|
MethodStorage $implementer_method_storage,
|
|
FunctionLikeParameter $guide_param,
|
|
Type\Union $implementer_param_signature_type,
|
|
string $cased_guide_method_id,
|
|
string $cased_implementer_method_id,
|
|
CodeLocation $code_location,
|
|
array $suppressed_issues
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|
) : void {
|
|
$guide_param_signature_type = $guide_param->signature_type
|
|
? ExpressionAnalyzer::fleshOutType(
|
|
$codebase,
|
|
$guide_param->signature_type,
|
|
$guide_classlike_storage->is_trait && $guide_method_storage->abstract
|
|
? $implementer_classlike_storage->name
|
|
: $guide_classlike_storage->name,
|
|
$guide_classlike_storage->is_trait && $guide_method_storage->abstract
|
|
? $implementer_classlike_storage->name
|
|
: $guide_classlike_storage->name,
|
|
$guide_classlike_storage->is_trait && $guide_method_storage->abstract
|
|
? $implementer_classlike_storage->parent_class
|
|
: $guide_classlike_storage->parent_class
|
|
)
|
|
: null;
|
|
|
|
$implementer_param_signature_type = ExpressionAnalyzer::fleshOutType(
|
|
$codebase,
|
|
$implementer_param_signature_type,
|
|
$implementer_classlike_storage->name,
|
|
$implementer_classlike_storage->name,
|
|
$implementer_classlike_storage->parent_class
|
|
);
|
|
|
|
$is_contained_by = $codebase->php_major_version >= 7
|
|
&& $codebase->php_minor_version >= 4
|
|
&& $guide_param_signature_type
|
|
? TypeAnalyzer::isContainedBy(
|
|
$codebase,
|
|
$guide_param_signature_type,
|
|
$implementer_param_signature_type
|
|
)
|
|
: TypeAnalyzer::isContainedByInPhp(
|
|
$guide_param_signature_type,
|
|
$implementer_param_signature_type
|
|
);
|
|
if (!$is_contained_by) {
|
|
$config = \Psalm\Config::getInstance();
|
|
|
|
if ($guide_classlike_storage->is_trait === $implementer_classlike_storage->is_trait
|
|
|| !in_array($guide_classlike_storage->name, $implementer_classlike_storage->used_traits)
|
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|| $implementer_method_storage->defining_fqcln !== $implementer_classlike_storage->name
|
|
|| (!$implementer_method_storage->abstract
|
|
&& !$guide_method_storage->abstract)
|
|
) {
|
|
if (IssueBuffer::accepts(
|
|
new MethodSignatureMismatch(
|
|
'Argument ' . ($i + 1) . ' of ' . $cased_implementer_method_id . ' has wrong type \'' .
|
|
$implementer_param_signature_type . '\', expecting \'' .
|
|
$guide_param_signature_type . '\' as defined by ' .
|
|
$cased_guide_method_id,
|
|
$implementer_method_storage->params[$i]->location
|
|
&& $config->isInProjectDirs(
|
|
$implementer_method_storage->params[$i]->location->file_path
|
|
)
|
|
? $implementer_method_storage->params[$i]->location
|
|
: $code_location
|
|
)
|
|
)) {
|
|
// fall through
|
|
}
|
|
} else {
|
|
if (IssueBuffer::accepts(
|
|
new TraitMethodSignatureMismatch(
|
|
'Argument ' . ($i + 1) . ' of ' . $cased_implementer_method_id . ' has wrong type \'' .
|
|
$implementer_param_signature_type . '\', expecting \'' .
|
|
$guide_param_signature_type . '\' as defined by ' .
|
|
$cased_guide_method_id,
|
|
$implementer_method_storage->params[$i]->location
|
|
&& $config->isInProjectDirs(
|
|
$implementer_method_storage->params[$i]->location->file_path
|
|
)
|
|
? $implementer_method_storage->params[$i]->location
|
|
: $code_location
|
|
),
|
|
$suppressed_issues
|
|
)) {
|
|
// fall through
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param string[] $suppressed_issues
|
|
*/
|
|
private static function compareMethodDocblockParams(
|
|
Codebase $codebase,
|
|
int $i,
|
|
ClassLikeStorage $guide_classlike_storage,
|
|
ClassLikeStorage $implementer_classlike_storage,
|
|
string $implementer_called_class_name,
|
|
MethodStorage $guide_method_storage,
|
|
MethodStorage $implementer_method_storage,
|
|
string $cased_guide_method_id,
|
|
string $cased_implementer_method_id,
|
|
Type\Union $guide_param_type,
|
|
Type\Union $implementer_param_type,
|
|
CodeLocation $code_location,
|
|
array $suppressed_issues
|
|
) : void {
|
|
$implementer_method_storage_param_type = ExpressionAnalyzer::fleshOutType(
|
|
$codebase,
|
|
$implementer_param_type,
|
|
$implementer_classlike_storage->name,
|
|
$implementer_called_class_name,
|
|
$implementer_classlike_storage->parent_class
|
|
);
|
|
|
|
$guide_method_storage_param_type = ExpressionAnalyzer::fleshOutType(
|
|
$codebase,
|
|
$guide_param_type,
|
|
$guide_classlike_storage->is_trait && $guide_method_storage->abstract
|
|
? $implementer_classlike_storage->name
|
|
: $guide_classlike_storage->name,
|
|
$guide_classlike_storage->is_trait && $guide_method_storage->abstract
|
|
? $implementer_classlike_storage->name
|
|
: $guide_classlike_storage->name,
|
|
$guide_classlike_storage->is_trait && $guide_method_storage->abstract
|
|
? $implementer_classlike_storage->parent_class
|
|
: $guide_classlike_storage->parent_class
|
|
);
|
|
|
|
$guide_class_name = $guide_classlike_storage->name;
|
|
|
|
if ($implementer_classlike_storage->template_type_extends) {
|
|
self::transformTemplates(
|
|
$implementer_classlike_storage->template_type_extends,
|
|
$guide_class_name,
|
|
$guide_method_storage_param_type,
|
|
$codebase
|
|
);
|
|
}
|
|
|
|
if ($implementer_classlike_storage->is_trait) {
|
|
$implementer_called_class_storage = $codebase->classlike_storage_provider->get(
|
|
$implementer_called_class_name
|
|
);
|
|
|
|
if (isset(
|
|
$implementer_called_class_storage->template_type_extends[$implementer_classlike_storage->name]
|
|
)) {
|
|
self::transformTemplates(
|
|
$implementer_called_class_storage->template_type_extends,
|
|
$implementer_classlike_storage->name,
|
|
$implementer_method_storage_param_type,
|
|
$codebase
|
|
);
|
|
|
|
self::transformTemplates(
|
|
$implementer_called_class_storage->template_type_extends,
|
|
$guide_class_name,
|
|
$guide_method_storage_param_type,
|
|
$codebase
|
|
);
|
|
}
|
|
}
|
|
|
|
foreach ($implementer_method_storage_param_type->getAtomicTypes() as $k => $t) {
|
|
if ($t instanceof Type\Atomic\TTemplateParam
|
|
&& \strpos($t->defining_class, 'fn-') === 0
|
|
) {
|
|
$implementer_method_storage_param_type->removeType($k);
|
|
|
|
foreach ($t->as->getAtomicTypes() as $as_t) {
|
|
$implementer_method_storage_param_type->addType($as_t);
|
|
}
|
|
}
|
|
}
|
|
|
|
$union_comparison_results = new TypeComparisonResult();
|
|
|
|
if (!TypeAnalyzer::isContainedBy(
|
|
$codebase,
|
|
$guide_method_storage_param_type,
|
|
$implementer_method_storage_param_type,
|
|
!$guide_classlike_storage->user_defined,
|
|
!$guide_classlike_storage->user_defined,
|
|
$union_comparison_results
|
|
)) {
|
|
// is the declared return type more specific than the inferred one?
|
|
if ($union_comparison_results->type_coerced) {
|
|
if ($guide_classlike_storage->user_defined) {
|
|
if (IssueBuffer::accepts(
|
|
new MoreSpecificImplementedParamType(
|
|
'Argument ' . ($i + 1) . ' of ' . $cased_implementer_method_id
|
|
. ' has the more specific type \'' .
|
|
$implementer_method_storage_param_type->getId() . '\', expecting \'' .
|
|
$guide_method_storage_param_type->getId() . '\' as defined by ' .
|
|
$cased_guide_method_id,
|
|
$implementer_method_storage->params[$i]->location
|
|
?: $code_location
|
|
),
|
|
$suppressed_issues
|
|
)) {
|
|
// fall through
|
|
}
|
|
}
|
|
} else {
|
|
if (TypeAnalyzer::isContainedBy(
|
|
$codebase,
|
|
$implementer_method_storage_param_type,
|
|
$guide_method_storage_param_type,
|
|
!$guide_classlike_storage->user_defined,
|
|
!$guide_classlike_storage->user_defined
|
|
)) {
|
|
if (IssueBuffer::accepts(
|
|
new MoreSpecificImplementedParamType(
|
|
'Argument ' . ($i + 1) . ' of ' . $cased_implementer_method_id
|
|
. ' has the more specific type \'' .
|
|
$implementer_method_storage_param_type->getId() . '\', expecting \'' .
|
|
$guide_method_storage_param_type->getId() . '\' as defined by ' .
|
|
$cased_guide_method_id,
|
|
$implementer_method_storage->params[$i]->location
|
|
?: $code_location
|
|
),
|
|
$suppressed_issues
|
|
)) {
|
|
// fall through
|
|
}
|
|
} else {
|
|
if (IssueBuffer::accepts(
|
|
new ImplementedParamTypeMismatch(
|
|
'Argument ' . ($i + 1) . ' of ' . $cased_implementer_method_id
|
|
. ' has wrong type \'' .
|
|
$implementer_method_storage_param_type->getId() . '\', expecting \'' .
|
|
$guide_method_storage_param_type->getId() . '\' as defined by ' .
|
|
$cased_guide_method_id,
|
|
$implementer_method_storage->params[$i]->location
|
|
?: $code_location
|
|
),
|
|
$suppressed_issues
|
|
)) {
|
|
// fall through
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param string[] $suppressed_issues
|
|
*/
|
|
private static function compareMethodSignatureReturnTypes(
|
|
Codebase $codebase,
|
|
ClassLikeStorage $guide_classlike_storage,
|
|
ClassLikeStorage $implementer_classlike_storage,
|
|
MethodStorage $guide_method_storage,
|
|
MethodStorage $implementer_method_storage,
|
|
Type\Union $guide_signature_return_type,
|
|
string $cased_guide_method_id,
|
|
string $implementer_called_class_name,
|
|
string $cased_implementer_method_id,
|
|
CodeLocation $code_location,
|
|
array $suppressed_issues
|
|
) : void {
|
|
$guide_signature_return_type = ExpressionAnalyzer::fleshOutType(
|
|
$codebase,
|
|
$guide_signature_return_type,
|
|
$guide_classlike_storage->is_trait && $guide_method_storage->abstract
|
|
? $implementer_classlike_storage->name
|
|
: $guide_classlike_storage->name,
|
|
($guide_classlike_storage->is_trait && $guide_method_storage->abstract)
|
|
|| $guide_classlike_storage->final
|
|
? $implementer_classlike_storage->name
|
|
: $guide_classlike_storage->name,
|
|
$guide_classlike_storage->is_trait && $guide_method_storage->abstract
|
|
? $implementer_classlike_storage->parent_class
|
|
: $guide_classlike_storage->parent_class,
|
|
true,
|
|
true,
|
|
$implementer_method_storage->final
|
|
);
|
|
|
|
$implementer_signature_return_type = $implementer_method_storage->signature_return_type
|
|
? ExpressionAnalyzer::fleshOutType(
|
|
$codebase,
|
|
$implementer_method_storage->signature_return_type,
|
|
$implementer_classlike_storage->is_trait
|
|
? $implementer_called_class_name
|
|
: $implementer_classlike_storage->name,
|
|
$implementer_classlike_storage->is_trait
|
|
? $implementer_called_class_name
|
|
: $implementer_classlike_storage->name,
|
|
$implementer_classlike_storage->parent_class
|
|
) : null;
|
|
|
|
$is_contained_by = $codebase->php_major_version >= 7
|
|
&& $codebase->php_minor_version >= 4
|
|
&& $implementer_signature_return_type
|
|
? TypeAnalyzer::isContainedBy(
|
|
$codebase,
|
|
$implementer_signature_return_type,
|
|
$guide_signature_return_type
|
|
)
|
|
: TypeAnalyzer::isContainedByInPhp($implementer_signature_return_type, $guide_signature_return_type);
|
|
|
|
if (!$is_contained_by) {
|
|
if ($guide_classlike_storage->is_trait === $implementer_classlike_storage->is_trait
|
|
|| !in_array($guide_classlike_storage->name, $implementer_classlike_storage->used_traits)
|
|
|| $implementer_method_storage->defining_fqcln !== $implementer_classlike_storage->name
|
|
|| (!$implementer_method_storage->abstract
|
|
&& !$guide_method_storage->abstract)
|
|
) {
|
|
if (IssueBuffer::accepts(
|
|
new MethodSignatureMismatch(
|
|
'Method ' . $cased_implementer_method_id . ' with return type \''
|
|
. $implementer_signature_return_type . '\' is different to return type \''
|
|
. $guide_signature_return_type . '\' of inherited method ' . $cased_guide_method_id,
|
|
$code_location
|
|
),
|
|
$suppressed_issues
|
|
)) {
|
|
// fall through
|
|
}
|
|
} else {
|
|
if (IssueBuffer::accepts(
|
|
new TraitMethodSignatureMismatch(
|
|
'Method ' . $cased_implementer_method_id . ' with return type \''
|
|
. $implementer_signature_return_type . '\' is different to return type \''
|
|
. $guide_signature_return_type . '\' of inherited method ' . $cased_guide_method_id,
|
|
$code_location
|
|
),
|
|
$suppressed_issues
|
|
)) {
|
|
// fall through
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param string[] $suppressed_issues
|
|
*/
|
|
private static function compareMethodDocblockReturnTypes(
|
|
Codebase $codebase,
|
|
ClassLikeStorage $guide_classlike_storage,
|
|
ClassLikeStorage $implementer_classlike_storage,
|
|
MethodStorage $implementer_method_storage,
|
|
Type\Union $guide_return_type,
|
|
Type\Union $implementer_return_type,
|
|
string $cased_guide_method_id,
|
|
string $implementer_called_class_name,
|
|
?MethodIdentifier $implementer_declaring_method_id,
|
|
CodeLocation $code_location,
|
|
array $suppressed_issues
|
|
) : void {
|
|
$implementer_method_storage_return_type = ExpressionAnalyzer::fleshOutType(
|
|
$codebase,
|
|
$implementer_return_type,
|
|
$implementer_classlike_storage->name,
|
|
$implementer_called_class_name,
|
|
$implementer_classlike_storage->parent_class
|
|
);
|
|
|
|
$guide_method_storage_return_type = ExpressionAnalyzer::fleshOutType(
|
|
$codebase,
|
|
$guide_return_type,
|
|
$guide_classlike_storage->is_trait
|
|
? $implementer_classlike_storage->name
|
|
: $guide_classlike_storage->name,
|
|
$guide_classlike_storage->is_trait
|
|
|| $implementer_method_storage->final
|
|
? $implementer_called_class_name
|
|
: $guide_classlike_storage->name,
|
|
$guide_classlike_storage->parent_class,
|
|
true,
|
|
true,
|
|
$implementer_method_storage->final
|
|
);
|
|
|
|
$guide_class_name = $guide_classlike_storage->name;
|
|
|
|
if ($implementer_classlike_storage->template_type_extends) {
|
|
self::transformTemplates(
|
|
$implementer_classlike_storage->template_type_extends,
|
|
$guide_class_name,
|
|
$guide_method_storage_return_type,
|
|
$codebase
|
|
);
|
|
}
|
|
|
|
if ($implementer_classlike_storage->is_trait) {
|
|
$implementer_called_class_storage = $codebase->classlike_storage_provider->get(
|
|
$implementer_called_class_name
|
|
);
|
|
|
|
if (isset(
|
|
$implementer_called_class_storage->template_type_extends[$implementer_classlike_storage->name]
|
|
)) {
|
|
self::transformTemplates(
|
|
$implementer_called_class_storage->template_type_extends,
|
|
$implementer_classlike_storage->name,
|
|
$implementer_method_storage_return_type,
|
|
$codebase
|
|
);
|
|
|
|
self::transformTemplates(
|
|
$implementer_called_class_storage->template_type_extends,
|
|
$guide_class_name,
|
|
$guide_method_storage_return_type,
|
|
$codebase
|
|
);
|
|
}
|
|
}
|
|
|
|
// treat void as null when comparing against docblock implementer
|
|
if ($implementer_method_storage_return_type->isVoid()) {
|
|
$implementer_method_storage_return_type = Type::getNull();
|
|
}
|
|
|
|
if ($guide_method_storage_return_type->isVoid()) {
|
|
$guide_method_storage_return_type = Type::getNull();
|
|
}
|
|
|
|
$union_comparison_results = new TypeComparisonResult();
|
|
|
|
if (!TypeAnalyzer::isContainedBy(
|
|
$codebase,
|
|
$implementer_method_storage_return_type,
|
|
$guide_method_storage_return_type,
|
|
false,
|
|
false,
|
|
$union_comparison_results
|
|
)) {
|
|
// is the declared return type more specific than the inferred one?
|
|
if ($union_comparison_results->type_coerced) {
|
|
if (IssueBuffer::accepts(
|
|
new LessSpecificImplementedReturnType(
|
|
'The inherited return type \'' . $guide_method_storage_return_type->getId()
|
|
. '\' for ' . $cased_guide_method_id . ' is more specific than the implemented '
|
|
. 'return type for ' . $implementer_declaring_method_id . ' \''
|
|
. $implementer_method_storage_return_type->getId() . '\'',
|
|
$implementer_method_storage->return_type_location
|
|
?: $code_location
|
|
),
|
|
$suppressed_issues
|
|
)) {
|
|
// fall through
|
|
}
|
|
} else {
|
|
if (IssueBuffer::accepts(
|
|
new ImplementedReturnTypeMismatch(
|
|
'The inherited return type \'' . $guide_method_storage_return_type->getId()
|
|
. '\' for ' . $cased_guide_method_id . ' is different to the implemented '
|
|
. 'return type for ' . $implementer_declaring_method_id . ' \''
|
|
. $implementer_method_storage_return_type->getId() . '\'',
|
|
$implementer_method_storage->return_type_location
|
|
?: $code_location
|
|
),
|
|
$suppressed_issues
|
|
)) {
|
|
// fall through
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param array<string, array<int|string, Type\Union>> $template_type_extends
|
|
*/
|
|
private static function transformTemplates(
|
|
array $template_type_extends,
|
|
string $base_class_name,
|
|
Type\Union $templated_type,
|
|
Codebase $codebase
|
|
) : void {
|
|
if (isset($template_type_extends[$base_class_name])) {
|
|
$map = $template_type_extends[$base_class_name];
|
|
|
|
$template_types = [];
|
|
|
|
foreach ($map as $key => $mapped_type) {
|
|
if (is_string($key)) {
|
|
$new_bases = [];
|
|
|
|
foreach ($mapped_type->getAtomicTypes() as $mapped_atomic_type) {
|
|
if ($mapped_atomic_type instanceof Type\Atomic\TTemplateParam) {
|
|
$new_bases[] = $mapped_atomic_type->defining_class;
|
|
}
|
|
}
|
|
|
|
if ($new_bases) {
|
|
$mapped_type = clone $mapped_type;
|
|
|
|
foreach ($new_bases as $new_base_class_name) {
|
|
self::transformTemplates(
|
|
$template_type_extends,
|
|
$new_base_class_name,
|
|
$mapped_type,
|
|
$codebase
|
|
);
|
|
}
|
|
}
|
|
|
|
$template_types[$key][$base_class_name] = [$mapped_type];
|
|
}
|
|
}
|
|
|
|
$template_result = new \Psalm\Internal\Type\TemplateResult([], $template_types);
|
|
|
|
$templated_type->replaceTemplateTypesWithArgTypes(
|
|
$template_result,
|
|
$codebase
|
|
);
|
|
}
|
|
}
|
|
}
|