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FunctionLikeDocblockScanner.php
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FunctionLikeDocblockScanner.php
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<?php
namespace Psalm\Internal\PhpVisitor\Reflector;
use PhpParser;
use Psalm\Aliases;
use Psalm\CodeLocation;
use Psalm\CodeLocation\DocblockTypeLocation;
use Psalm\Codebase;
use Psalm\Config;
use Psalm\Exception\InvalidMethodOverrideException;
use Psalm\Exception\TypeParseTreeException;
use Psalm\Internal\Scanner\FileScanner;
use Psalm\Internal\Scanner\FunctionDocblockComment;
use Psalm\Internal\Type\Comparator\UnionTypeComparator;
use Psalm\Internal\Type\TypeAlias;
use Psalm\Internal\Type\TypeParser;
use Psalm\Internal\Type\TypeTokenizer;
use Psalm\Issue\InvalidDocblock;
use Psalm\Issue\PossiblyInvalidDocblockTag;
use Psalm\Storage\Assertion;
use Psalm\Storage\Assertion\Empty_;
use Psalm\Storage\Assertion\Falsy;
use Psalm\Storage\Assertion\IsIdentical;
use Psalm\Storage\Assertion\IsLooselyEqual;
use Psalm\Storage\Assertion\IsNotIdentical;
use Psalm\Storage\Assertion\IsNotLooselyEqual;
use Psalm\Storage\Assertion\IsNotType;
use Psalm\Storage\Assertion\IsType;
use Psalm\Storage\Assertion\NonEmpty;
use Psalm\Storage\Assertion\Truthy;
use Psalm\Storage\ClassLikeStorage;
use Psalm\Storage\FileStorage;
use Psalm\Storage\FunctionLikeParameter;
use Psalm\Storage\FunctionLikeStorage;
use Psalm\Storage\MethodStorage;
use Psalm\Storage\Possibilities;
use Psalm\Type;
use Psalm\Type\Atomic\TArray;
use Psalm\Type\Atomic\TConditional;
use Psalm\Type\Atomic\TKeyedArray;
use Psalm\Type\Atomic\TList;
use Psalm\Type\Atomic\TNull;
use Psalm\Type\Atomic\TTemplateParam;
use Psalm\Type\TaintKindGroup;
use Psalm\Type\Union;
use function array_filter;
use function array_map;
use function array_merge;
use function array_values;
use function count;
use function explode;
use function in_array;
use function preg_match;
use function preg_replace;
use function preg_split;
use function str_replace;
use function strlen;
use function strpos;
use function strtolower;
use function substr;
use function trim;
/**
* @internal
*/
class FunctionLikeDocblockScanner
{
/**
* @param array<string, non-empty-array<string, Union>> $existing_function_template_types
* @param array<string, TypeAlias> $type_aliases
*/
public static function addDocblockInfo(
Codebase $codebase,
FileScanner $file_scanner,
FileStorage $file_storage,
Aliases $aliases,
array $type_aliases,
?ClassLikeStorage $classlike_storage,
array $existing_function_template_types,
FunctionLikeStorage $storage,
PhpParser\Node\FunctionLike $stmt,
FunctionDocblockComment $docblock_info,
bool $is_functionlike_override,
bool $fake_method,
string $cased_function_id
): void {
self::handleUnexpectedTags($docblock_info, $storage, $stmt, $file_scanner, $cased_function_id);
$config = Config::getInstance();
if ($docblock_info->mutation_free) {
$storage->mutation_free = true;
if ($storage instanceof MethodStorage) {
$storage->external_mutation_free = true;
$storage->mutation_free_inferred = false;
}
}
if ($storage instanceof MethodStorage && $docblock_info->external_mutation_free) {
$storage->external_mutation_free = true;
}
if ($docblock_info->deprecated) {
$storage->deprecated = true;
}
if ($docblock_info->internal
&& !$docblock_info->psalm_internal
&& $aliases->namespace
) {
$storage->internal = explode('\\', $aliases->namespace)[0];
} elseif (!$classlike_storage
|| ($docblock_info->psalm_internal
&& strlen($docblock_info->psalm_internal) > strlen($classlike_storage->internal)
)
) {
$storage->internal = $docblock_info->psalm_internal ?? '';
}
if (($storage->internal || ($classlike_storage && $classlike_storage->internal))
&& !$config->allow_internal_named_arg_calls
) {
$storage->allow_named_arg_calls = false;
} elseif ($docblock_info->no_named_args) {
$storage->allow_named_arg_calls = false;
}
if ($docblock_info->variadic) {
$storage->variadic = true;
}
if ($docblock_info->pure) {
$storage->pure = true;
$storage->specialize_call = true;
$storage->mutation_free = true;
if ($storage instanceof MethodStorage) {
$storage->external_mutation_free = true;
}
}
if ($docblock_info->specialize_call) {
$storage->specialize_call = true;
}
// we make sure we only add ignore flag for internal stubs if the config is set to true
if ($docblock_info->ignore_nullable_return
&& $storage->return_type
&& ($codebase->config->ignore_internal_nullable_issues
|| !in_array($file_storage->file_path, $codebase->config->internal_stubs)
)
) {
$storage->return_type->ignore_nullable_issues = true;
}
// we make sure we only add ignore flag for internal stubs if the config is set to true
if ($docblock_info->ignore_falsable_return
&& $storage->return_type
&& ($codebase->config->ignore_internal_falsable_issues
|| !in_array($file_storage->file_path, $codebase->config->internal_stubs)
)
) {
$storage->return_type->ignore_falsable_issues = true;
}
if ($docblock_info->stub_override && !$is_functionlike_override) {
throw new InvalidMethodOverrideException(
'Method ' . $cased_function_id . ' is marked as stub override,'
. ' but no original counterpart found'
);
}
$storage->suppressed_issues = $docblock_info->suppressed_issues;
foreach ($docblock_info->throws as [$throw, $offset, $line]) {
$throw_location = new DocblockTypeLocation(
$file_scanner,
$offset,
$offset + strlen($throw),
$line
);
$class_names = array_filter(array_map('trim', explode('|', $throw)));
foreach ($class_names as $throw_class) {
if ($throw_class !== 'self' && $throw_class !== 'static' && $throw_class !== 'parent') {
$exception_fqcln = Type::getFQCLNFromString(
$throw_class,
$aliases
);
} else {
$exception_fqcln = $throw_class;
}
$codebase->scanner->queueClassLikeForScanning($exception_fqcln);
$file_storage->referenced_classlikes[strtolower($exception_fqcln)] = $exception_fqcln;
$storage->throws[$exception_fqcln] = true;
$storage->throw_locations[$exception_fqcln] = $throw_location;
}
}
if (!$config->use_docblock_types) {
return;
}
if ($storage instanceof MethodStorage && $docblock_info->inheritdoc) {
$storage->inheritdoc = true;
}
$template_types = $classlike_storage && $classlike_storage->template_types
? $classlike_storage->template_types
: null;
$function_template_types = $existing_function_template_types;
$class_template_types = $classlike_storage ? ($classlike_storage->template_types ?: []) : [];
if ($docblock_info->templates) {
$function_template_types = self::handleTemplates(
$storage,
$docblock_info,
$aliases,
$template_types,
$type_aliases,
$file_scanner,
$stmt,
$cased_function_id
);
}
self::handleAssertions(
$docblock_info,
$storage,
$codebase,
$file_scanner,
$file_storage,
$aliases,
$stmt,
$class_template_types,
$function_template_types,
$type_aliases,
$classlike_storage
);
foreach ($docblock_info->globals as $global) {
try {
$storage->global_types[$global['name']] = TypeParser::parseTokens(
TypeTokenizer::getFullyQualifiedTokens(
$global['type'],
$aliases,
null,
$type_aliases
),
null
);
} catch (TypeParseTreeException $e) {
$storage->docblock_issues[] = new InvalidDocblock(
$e->getMessage() . ' in docblock for ' . $cased_function_id,
new CodeLocation($file_scanner, $stmt, null, true)
);
continue;
}
}
if ($docblock_info->params) {
self::improveParamsFromDocblock(
$codebase,
$file_scanner,
$file_storage,
$aliases,
$type_aliases,
$classlike_storage,
$storage,
$function_template_types,
$class_template_types,
$docblock_info->params,
$stmt,
$fake_method,
$classlike_storage && !$classlike_storage->is_trait ? $classlike_storage->name : null
);
}
if ($storage instanceof MethodStorage) {
$storage->has_docblock_param_types = (bool) array_filter(
$storage->params,
fn(FunctionLikeParameter $p): bool => $p->type !== null && $p->has_docblock_type
);
}
foreach ($docblock_info->params_out as $docblock_param_out) {
self::handleParamOut(
$docblock_param_out,
$aliases,
$function_template_types,
$class_template_types,
$type_aliases,
$cased_function_id,
$file_scanner,
$stmt,
$storage,
$codebase,
$file_storage
);
}
if ($docblock_info->self_out
&& $storage instanceof MethodStorage) {
$out_type = TypeParser::parseTokens(
TypeTokenizer::getFullyQualifiedTokens(
$docblock_info->self_out['type'],
$aliases,
$function_template_types + $class_template_types,
$type_aliases,
$classlike_storage ? $classlike_storage->name : null
),
null,
$function_template_types + $class_template_types,
$type_aliases
);
$storage->self_out_type = $out_type;
}
if ($docblock_info->if_this_is
&& $storage instanceof MethodStorage) {
$out_type = TypeParser::parseTokens(
TypeTokenizer::getFullyQualifiedTokens(
$docblock_info->if_this_is['type'],
$aliases,
$function_template_types + $class_template_types,
$type_aliases,
$classlike_storage ? $classlike_storage->name : null
),
null,
$function_template_types + $class_template_types,
$type_aliases
);
$storage->if_this_is_type = $out_type;
}
foreach ($docblock_info->taint_sink_params as $taint_sink_param) {
$param_name = substr($taint_sink_param['name'], 1);
foreach ($storage->params as $param_storage) {
if ($param_storage->name === $param_name) {
$param_storage->sinks[] = $taint_sink_param['taint'];
}
}
}
foreach ($docblock_info->taint_source_types as $taint_source_type) {
if ($taint_source_type === 'input') {
$storage->taint_source_types = array_merge(
$storage->taint_source_types,
TaintKindGroup::ALL_INPUT
);
} else {
$storage->taint_source_types[] = $taint_source_type;
}
}
$storage->added_taints = $docblock_info->added_taints;
foreach ($docblock_info->removed_taints as $removed_taint) {
if ($removed_taint[0] === '(') {
self::handleRemovedTaint(
$codebase,
$stmt,
$aliases,
$removed_taint,
$function_template_types,
$class_template_types,
$type_aliases,
$storage,
$classlike_storage,
$cased_function_id,
$file_storage,
$file_scanner
);
} else {
$storage->removed_taints[] = $removed_taint;
}
}
self::handleTaintFlow($docblock_info, $storage);
foreach ($docblock_info->assert_untainted_params as $untainted_assert_param) {
$param_name = substr($untainted_assert_param['name'], 1);
foreach ($storage->params as $param_storage) {
if ($param_storage->name === $param_name) {
$param_storage->assert_untainted = true;
}
}
}
if ($docblock_info->return_type !== null) {
self::handleReturn(
$codebase,
$docblock_info,
$docblock_info->return_type,
$fake_method,
$file_scanner,
$storage,
$stmt,
$aliases,
$function_template_types,
$class_template_types,
$type_aliases,
$classlike_storage,
$cased_function_id,
$file_storage
);
}
if ($docblock_info->description) {
$storage->description = $docblock_info->description;
}
}
/**
* @param array<string, array<string, Union>> $template_types
* @param array<string, TypeAlias>|null $type_aliases
* @param array<string, array<string, Union>> $function_template_types
*
* @return array{
* array<int, array{0: string, 1: int, 2?: string}>,
* array<string, array<string, Union>>
* }
*/
private static function getConditionalSanitizedTypeTokens(
string $docblock_return_type,
Aliases $aliases,
array $template_types,
?array $type_aliases,
FunctionLikeStorage $storage,
?ClassLikeStorage $classlike_storage,
string $cased_function_id,
array $function_template_types
): array {
$fixed_type_tokens = TypeTokenizer::getFullyQualifiedTokens(
$docblock_return_type,
$aliases,
$template_types,
$type_aliases,
$classlike_storage && !$classlike_storage->is_trait ? $classlike_storage->name : null
);
$param_type_mapping = [];
// This checks for param references in the return type tokens
// If found, the param is replaced with a generated template param
foreach ($fixed_type_tokens as $i => $type_token) {
$token_body = $type_token[0];
$template_function_id = 'fn-' . strtolower($cased_function_id);
if ($token_body[0] === '$') {
foreach ($storage->params as $j => $param_storage) {
if ('$' . $param_storage->name === $token_body) {
if (!isset($param_type_mapping[$token_body])) {
$template_name = 'TGeneratedFromParam' . $j;
$template_as_type = $param_storage->type
? clone $param_storage->type
: Type::getMixed();
$storage->template_types[$template_name] = [
$template_function_id => $template_as_type,
];
$function_template_types[$template_name]
= $storage->template_types[$template_name];
$param_type_mapping[$token_body] = $template_name;
$param_storage->type = new Union([
new TTemplateParam(
$template_name,
$template_as_type,
$template_function_id
)
]);
}
// spaces are allowed before $foo in get(string $foo) magic method
// definitions, but we want to remove them in this instance
if (isset($fixed_type_tokens[$i - 1])
&& $fixed_type_tokens[$i - 1][0][0] === ' '
) {
unset($fixed_type_tokens[$i - 1]);
}
$fixed_type_tokens[$i][0] = $param_type_mapping[$token_body];
continue 2;
}
}
}
if ($token_body === 'func_num_args()') {
$template_name = 'TFunctionArgCount';
$storage->template_types[$template_name] = [
$template_function_id => Type::getInt(),
];
$function_template_types[$template_name]
= $storage->template_types[$template_name];
$fixed_type_tokens[$i][0] = $template_name;
}
if ($token_body === 'PHP_MAJOR_VERSION') {
$template_name = 'TPhpMajorVersion';
$storage->template_types[$template_name] = [
$template_function_id => Type::getInt(),
];
$function_template_types[$template_name]
= $storage->template_types[$template_name];
$fixed_type_tokens[$i][0] = $template_name;
}
if ($token_body === 'PHP_VERSION_ID') {
$template_name = 'TPhpVersionId';
$storage->template_types[$template_name] = [
$template_function_id => Type::getInt()
];
$function_template_types[$template_name]
= $storage->template_types[$template_name];
$fixed_type_tokens[$i][0] = $template_name;
}
}
return [$fixed_type_tokens, $function_template_types];
}
/**
* @param array<string, array<string, Union>> $class_template_types
* @param array<string, array<string, Union>> $function_template_types
* @param array<string, TypeAlias> $type_aliases
* @return non-empty-list<Assertion>|null
*/
private static function getAssertionParts(
Codebase $codebase,
FileScanner $file_scanner,
FileStorage $file_storage,
Aliases $aliases,
PhpParser\Node\FunctionLike $stmt,
FunctionLikeStorage $storage,
string $assertion_type,
array $class_template_types,
array $function_template_types,
array $type_aliases,
?string $self_fqcln
): ?array {
$is_negation = false;
$is_loose_equality = false;
$is_strict_equality = false;
if ($assertion_type[0] === '!') {
$is_negation = true;
$assertion_type = substr($assertion_type, 1);
}
if ($assertion_type[0] === '~') {
$is_loose_equality = true;
$assertion_type = substr($assertion_type, 1);
}
if ($assertion_type[0] === '=') {
$is_strict_equality = true;
$assertion_type = substr($assertion_type, 1);
}
$class_template_types = !$stmt instanceof PhpParser\Node\Stmt\ClassMethod || !$stmt->isStatic()
? $class_template_types
: [];
if ($assertion_type === 'falsy') {
return [$is_negation ? new Truthy() : new Falsy()];
}
if ($assertion_type === 'truthy') {
return [$is_negation ? new Falsy() : new Truthy()];
}
if ($assertion_type === 'empty') {
return [$is_negation ? new NonEmpty() : new Empty_()];
}
$template_types = $function_template_types + $class_template_types;
try {
$namespaced_type = TypeParser::parseTokens(
TypeTokenizer::getFullyQualifiedTokens(
$assertion_type,
$aliases,
$template_types,
$type_aliases,
$self_fqcln,
null,
true
),
null,
$template_types
);
} catch (TypeParseTreeException $e) {
$storage->docblock_issues[] = new InvalidDocblock(
'Invalid @psalm-assert union type ' . $e,
new CodeLocation($file_scanner, $stmt, null, true)
);
return null;
}
if (($is_negation || $is_loose_equality || $is_strict_equality)
&& count($namespaced_type->getAtomicTypes()) > 1
) {
$storage->docblock_issues[] = new InvalidDocblock(
'Docblock assertions cannot contain | characters together with a prefix',
new CodeLocation($file_scanner, $stmt, null, true)
);
return null;
}
$namespaced_type->queueClassLikesForScanning(
$codebase,
$file_storage,
$function_template_types + $class_template_types
);
$assertion_type_parts = [];
foreach ($namespaced_type->getAtomicTypes() as $namespaced_type_part) {
if ($is_negation) {
if ($is_strict_equality) {
$assertion_type_parts[] = new IsNotIdentical($namespaced_type_part);
} elseif ($is_loose_equality) {
$assertion_type_parts[] = new IsNotLooselyEqual($namespaced_type_part);
} else {
$assertion_type_parts[] = new IsNotType($namespaced_type_part);
}
} else {
if ($is_strict_equality) {
$assertion_type_parts[] = new IsIdentical($namespaced_type_part);
} elseif ($is_loose_equality) {
$assertion_type_parts[] = new IsLooselyEqual($namespaced_type_part);
} else {
$assertion_type_parts[] = new IsType($namespaced_type_part);
}
}
}
return $assertion_type_parts;
}
/**
* @param array<string, array<string, Union>> $class_template_types
* @param array<string, non-empty-array<string, Union>> $function_template_types
* @param array<string, TypeAlias> $type_aliases
* @param array<
* int,
* array{
* type:string,
* name:string,
* line_number:int,
* start:int,
* end:int,
* description?:string
* }
* > $docblock_params
*/
private static function improveParamsFromDocblock(
Codebase $codebase,
FileScanner $file_scanner,
FileStorage $file_storage,
Aliases $aliases,
array $type_aliases,
?ClassLikeStorage $classlike_storage,
FunctionLikeStorage $storage,
array &$function_template_types,
array $class_template_types,
array $docblock_params,
PhpParser\Node\FunctionLike $function,
bool $fake_method,
?string $fq_classlike_name
): void {
$base = $classlike_storage ? $classlike_storage->name . '::' : '';
$cased_method_id = $base . $storage->cased_name;
$unused_docblock_params = [];
$class_template_types = !$function instanceof PhpParser\Node\Stmt\ClassMethod || !$function->isStatic()
? $class_template_types
: [];
foreach ($docblock_params as $docblock_param) {
$param_name = $docblock_param['name'];
$docblock_param_variadic = false;
if (strpos($param_name, '...') === 0) {
$docblock_param_variadic = true;
$param_name = substr($param_name, 3);
}
$param_name = substr($param_name, 1);
$storage_param = null;
foreach ($storage->params as $function_signature_param) {
if ($function_signature_param->name === $param_name) {
$storage_param = $function_signature_param;
break;
}
}
if (!$fake_method) {
$docblock_type_location = new DocblockTypeLocation(
$file_scanner,
$docblock_param['start'],
$docblock_param['end'],
$docblock_param['line_number']
);
} else {
$docblock_type_location = new CodeLocation(
$file_scanner,
$function,
null,
false,
CodeLocation::FUNCTION_PHPDOC_METHOD,
null
);
}
if ($storage_param === null) {
$param_location = new CodeLocation(
$file_scanner,
$function,
null,
true,
CodeLocation::FUNCTION_PARAM_VAR
);
$param_location->setCommentLine($docblock_param['line_number']);
$unused_docblock_params[$param_name] = $param_location;
if (!$docblock_param_variadic || $storage->params || $file_scanner->will_analyze) {
continue;
}
$storage_param = new FunctionLikeParameter(
$param_name,
false,
null,
null,
null,
false,
false,
true,
null
);
$storage->addParam($storage_param);
}
try {
$new_param_type = TypeParser::parseTokens(
TypeTokenizer::getFullyQualifiedTokens(
$docblock_param['type'],
$aliases,
$function_template_types + $class_template_types,
$type_aliases,
$fq_classlike_name
),
null,
$function_template_types + $class_template_types,
$type_aliases
);
} catch (TypeParseTreeException $e) {
$storage->docblock_issues[] = new InvalidDocblock(
$e->getMessage() . ' in docblock for ' . $cased_method_id,
$docblock_type_location
);
continue;
}
$storage_param->has_docblock_type = true;
$new_param_type->setFromDocblock();
$new_param_type->queueClassLikesForScanning(
$codebase,
$file_storage,
$storage->template_types ?: []
);
if ($storage->template_types) {
foreach ($storage->template_types as $t => $type_map) {
foreach ($type_map as $obj => $type) {
if ($type->isMixed() && $docblock_param['type'] === 'class-string<' . $t . '>') {
$storage->template_types[$t][$obj] = Type::getObject();
if (isset($function_template_types[$t])) {
$function_template_types[$t][$obj] = $storage->template_types[$t][$obj];
}
}
}
}
}
if (!$docblock_param_variadic && $storage_param->is_variadic && $new_param_type->hasArray()) {
/**
* @psalm-suppress PossiblyUndefinedStringArrayOffset
* @var TArray|TKeyedArray|TList
*/
$array_type = $new_param_type->getAtomicTypes()['array'];
if ($array_type instanceof TKeyedArray) {
$new_param_type = $array_type->getGenericValueType();
} elseif ($array_type instanceof TList) {
$new_param_type = $array_type->type_param;
} else {
$new_param_type = $array_type->type_params[1];
}
}
$existing_param_type_nullable = $storage_param->is_nullable;
if (isset($docblock_param['description'])) {
$storage_param->description = $docblock_param['description'];
}
if (!$storage_param->type || $storage_param->type->hasMixed() || $storage->template_types) {
if ($existing_param_type_nullable
&& !$new_param_type->isNullable()
&& !$new_param_type->hasTemplate()
) {
$new_param_type->addType(new TNull());
}
$config = Config::getInstance();
if ($config->add_param_default_to_docblock_type
&& $storage_param->default_type instanceof Union
&& !$storage_param->default_type->hasMixed()
&& (!$storage_param->type || !$storage_param->type->hasMixed())
) {
$new_param_type = Type::combineUnionTypes($new_param_type, $storage_param->default_type);
}
$storage_param->type = $new_param_type;
$storage_param->type_location = $docblock_type_location;
continue;
}
$storage_param_atomic_types = $storage_param->type->getAtomicTypes();
$all_typehint_types_match = true;
foreach ($new_param_type->getAtomicTypes() as $key => $type) {
if (isset($storage_param_atomic_types[$key])) {
$type->from_docblock = false;
if ($storage_param_atomic_types[$key] instanceof TArray
&& $type instanceof TArray
&& $type->type_params[0]->hasArrayKey()
) {
$type->type_params[0]->from_docblock = false;
}
} else {
$all_typehint_types_match = false;
}
}
if ($all_typehint_types_match) {
$new_param_type->from_docblock = false;
}
if ($existing_param_type_nullable && !$new_param_type->isNullable()) {
$new_param_type->addType(new TNull());
}
$storage_param->type = $new_param_type;
$storage_param->type_location = $docblock_type_location;
}
$params_without_docblock_type = array_filter(
$storage->params,
fn(FunctionLikeParameter $p): bool => !$p->has_docblock_type && (!$p->type || $p->type->hasArray())
);
if ($params_without_docblock_type) {
$storage->unused_docblock_params = $unused_docblock_params;
}
}
/**
* @param array<string, TypeAlias> $type_aliases
* @param array<string, non-empty-array<string, Union>> $function_template_types
* @param array<string, non-empty-array<string, Union>> $class_template_types
*/
private static function handleReturn(
Codebase $codebase,
FunctionDocblockComment $docblock_info,
string $docblock_return_type,
bool $fake_method,
FileScanner $file_scanner,
FunctionLikeStorage $storage,
PhpParser\Node\FunctionLike $stmt,
Aliases $aliases,
array $function_template_types,
array $class_template_types,
array $type_aliases,
?ClassLikeStorage $classlike_storage,
string $cased_function_id,
FileStorage $file_storage
): void {
if (!$fake_method
&& $docblock_info->return_type_line_number
&& $docblock_info->return_type_start
&& $docblock_info->return_type_end
) {
$storage->return_type_location = new DocblockTypeLocation(
$file_scanner,
$docblock_info->return_type_start,
$docblock_info->return_type_end,
$docblock_info->return_type_line_number
);
} else {
$storage->return_type_location = new CodeLocation(
$file_scanner,
$stmt,
null,
false,
!$fake_method
? CodeLocation::FUNCTION_PHPDOC_RETURN_TYPE
: CodeLocation::FUNCTION_PHPDOC_METHOD,
$docblock_info->return_type
);
}
try {
[$fixed_type_tokens, $function_template_types] = self::getConditionalSanitizedTypeTokens(
$docblock_return_type,
$aliases,
$function_template_types + $class_template_types,
$type_aliases,
$storage,
$classlike_storage,
$cased_function_id,
$function_template_types
);
$storage->return_type = TypeParser::parseTokens(
array_values($fixed_type_tokens),
null,
$function_template_types + $class_template_types,
$type_aliases
);
$storage->return_type->setFromDocblock();
if ($storage instanceof MethodStorage) {
$storage->has_docblock_return_type = true;
}
if ($storage->signature_return_type) {
$all_typehint_types_match = true;
$signature_return_atomic_types = $storage->signature_return_type->getAtomicTypes();
foreach ($storage->return_type->getAtomicTypes() as $key => $type) {
if (isset($signature_return_atomic_types[$key])) {
$type->from_docblock = false;
} else {
$all_typehint_types_match = false;
}
}
if ($all_typehint_types_match) {
$storage->return_type->from_docblock = false;
if ($storage instanceof MethodStorage) {
$storage->has_docblock_return_type = true;
}
}
// if the signature type contains null, we add null into the final return type too
if ($storage->signature_return_type->isNullable()
&& !$storage->return_type->isNullable()
&& !$storage->return_type->hasTemplate()
&& !$storage->return_type->hasConditional()