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Fix #3237 - allow mixin to reference generic params

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This commit is contained in:
Brown 2020-04-27 09:10:24 -04:00
parent 189cd2bdc8
commit 95dbb93732
4 changed files with 85 additions and 17 deletions
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33
src/Psalm/Internal/Analyzer/Statements/Expression/Call/AtomicMethodCallAnalyzer.php
View File

@ -254,12 +254,12 @@ class AtomicMethodCallAnalyzer extends CallAnalyzer
);
if (!$naive_method_exists
&& $class_storage->mixin_param
&& $class_storage->mixin instanceof Type\Atomic\TTemplateParam
&& $lhs_type_part instanceof Type\Atomic\TGenericObject
&& $class_storage->template_types
) {
$param_position = \array_search(
$class_storage->mixin_param,
$class_storage->mixin->param_name,
\array_keys($class_storage->template_types)
);
@ -289,7 +289,7 @@ class AtomicMethodCallAnalyzer extends CallAnalyzer
: null,
$statements_analyzer->getFilePath()
)) {
$lhs_type_part = $lhs_type_part_new;
$lhs_type_part = clone $lhs_type_part_new;
$class_storage = $codebase->classlike_storage_provider->get($lhs_type_part->value);
$naive_method_exists = true;
@ -298,6 +298,33 @@ class AtomicMethodCallAnalyzer extends CallAnalyzer
}
}
}
} elseif (!$naive_method_exists
&& $class_storage->mixin instanceof Type\Atomic\TNamedObject
) {
$new_method_id = new MethodIdentifier(
$class_storage->mixin->value,
$method_name_lc
);
if ($codebase->methods->methodExists(
$new_method_id,
$context->calling_method_id,
$codebase->collect_locations
? new CodeLocation($source, $stmt->name)
: null,
!$context->collect_initializations
&& !$context->collect_mutations
? $statements_analyzer
: null,
$statements_analyzer->getFilePath()
)) {
$fq_class_name = $class_storage->mixin->value;
$lhs_type_part = clone $class_storage->mixin;
$class_storage = $codebase->classlike_storage_provider->get($class_storage->mixin->value);
$naive_method_exists = true;
$method_id = $new_method_id;
}
}
if (!$naive_method_exists

43
src/Psalm/Internal/PhpVisitor/ReflectorVisitor.php
View File

@ -1260,22 +1260,41 @@ class ReflectorVisitor extends PhpParser\NodeVisitorAbstract implements PhpParse
$storage->psalm_internal = $docblock_info->psalm_internal;
if ($docblock_info->mixin) {
if (isset($this->class_template_types[$docblock_info->mixin])) {
$storage->mixin_param = $docblock_info->mixin;
} else {
$mixin_fqcln = Type::getFQCLNFromString(
$mixin_type = Type::parseTokens(
Type::fixUpLocalType(
$docblock_info->mixin,
$this->aliases
);
$this->aliases,
$this->class_template_types
),
null,
$this->class_template_types
);
$storage->mixin_fqcln = $mixin_fqcln;
$mixin_type->queueClassLikesForScanning(
$this->codebase,
$this->file_storage,
$storage->template_types ?: []
);
$this->codebase->scanner->queueClassLikeForScanning($mixin_fqcln);
$this->file_storage->referenced_classlikes[strtolower($mixin_fqcln)] = $mixin_fqcln;
if ($mixin_type->isSingle()) {
$mixin_type = array_values($mixin_type->getAtomicTypes())[0];
// if there's a mixin, assume it's the reason for the __call
$storage->sealed_properties = true;
$storage->sealed_methods = true;
if ($mixin_type instanceof Type\Atomic\TNamedObject) {
if ($mixin_type instanceof Type\Atomic\TGenericObject) {
$storage->mixin = $mixin_type;
} else {
$storage->mixin_fqcln = $mixin_type->value;
$this->file_storage->referenced_classlikes[strtolower($storage->mixin_fqcln)]
= $storage->mixin_fqcln;
// if there's a mixin, assume it's the reason for the __call
$storage->sealed_properties = true;
$storage->sealed_methods = true;
}
} elseif ($mixin_type instanceof Type\Atomic\TTemplateParam) {
$storage->mixin = $mixin_type;
}
}
}

4
src/Psalm/Storage/ClassLikeStorage.php
View File

@ -103,9 +103,9 @@ class ClassLikeStorage
public $mixin_fqcln = null;
/**
* @var null|string
* @var null|Type\Atomic\TTemplateParam|Type\ATomic\TNamedObject
*/
public $mixin_param = null;
public $mixin = null;
/**
* @var array<string, bool>

22
tests/MixinAnnotationTest.php
View File

@ -145,6 +145,28 @@ class MixinAnnotationTest extends TestCase
'$b' => 'bool',
]
],
'templatedMixin' => [
'<?php
/**
* @template T
*/
abstract class Foo {
/** @return T */
abstract public function hi();
}
/**
* @mixin Foo<string>
*/
class Bar {}
$bar = new Bar();
$b = $bar->hi();',
[
'$b' => 'string',
]
],
];
}
}