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InterfaceAnalyzer.php
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InterfaceAnalyzer.php
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<?php
namespace Psalm\Internal\Analyzer;
use PhpParser;
use Psalm\CodeLocation;
use Psalm\Issue\UndefinedInterface;
/**
* @internal
*/
class InterfaceAnalyzer extends ClassLikeAnalyzer
{
/**
* @param PhpParser\Node\Stmt\Interface_ $interface
* @param string $fq_interface_name
*/
public function __construct(PhpParser\Node\Stmt\Interface_ $interface, SourceAnalyzer $source, $fq_interface_name)
{
parent::__construct($interface, $source, $fq_interface_name);
}
/**
* @return void
*/
public function analyze()
{
if (!$this->class instanceof PhpParser\Node\Stmt\Interface_) {
throw new \LogicException('Something went badly wrong');
}
if ($this->class->extends) {
$project_analyzer = $this->file_analyzer->project_analyzer;
$codebase = $project_analyzer->getCodebase();
foreach ($this->class->extends as $extended_interface) {
$extended_interface_name = self::getFQCLNFromNameObject(
$extended_interface,
$this->getAliases()
);
$parent_reference_location = new CodeLocation($this, $extended_interface);
if (!$codebase->classOrInterfaceExists(
$extended_interface_name,
$parent_reference_location
)) {
// we should not normally get here
return;
}
try {
$extended_interface_storage = $codebase->classlike_storage_provider->get($extended_interface_name);
} catch (\InvalidArgumentException $e) {
continue;
}
if (!$extended_interface_storage->is_interface) {
$code_location = new CodeLocation(
$this,
$extended_interface
);
if (\Psalm\IssueBuffer::accepts(
new UndefinedInterface(
$extended_interface_name . ' is not an interface',
$code_location
),
$this->getSuppressedIssues()
)) {
// fall through
}
}
if ($codebase->store_node_types && $extended_interface_name) {
$bounds = $parent_reference_location->getSelectionBounds();
$codebase->analyzer->addOffsetReference(
$this->getFilePath(),
$bounds[0],
$bounds[1],
$extended_interface_name
);
}
}
}
foreach ($this->class->stmts as $stmt) {
if ($stmt instanceof PhpParser\Node\Stmt\ClassMethod) {
$method_analyzer = new MethodAnalyzer($stmt, $this);
$method_analyzer->analyze(new \Psalm\Context($this->getFQCLN()));
} elseif ($stmt instanceof PhpParser\Node\Stmt\Property) {
\Psalm\IssueBuffer::add(
new \Psalm\Issue\ParseError(
'Interfaces cannot have properties',
new CodeLocation($this, $stmt)
)
);
return;
}
}
}
}