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ArgumentAnalyzer.php
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ArgumentAnalyzer.php
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<?php
namespace Psalm\Internal\Analyzer\Statements\Expression\Call;
use PhpParser;
use Psalm\Codebase;
use Psalm\Internal\Analyzer\ClassLikeAnalyzer;
use Psalm\Internal\Analyzer\MethodAnalyzer;
use Psalm\Internal\Analyzer\Statements\Block\ForeachAnalyzer;
use Psalm\Internal\Analyzer\Statements\Expression\CallAnalyzer;
use Psalm\Internal\Analyzer\Statements\Expression\ExpressionIdentifier;
use Psalm\Internal\Analyzer\Statements\Expression\CastAnalyzer;
use Psalm\Internal\Analyzer\StatementsAnalyzer;
use Psalm\Internal\Type\Comparator\CallableTypeComparator;
use Psalm\Internal\Type\Comparator\UnionTypeComparator;
use Psalm\Internal\ControlFlow\TaintSink;
use Psalm\Internal\ControlFlow\ControlFlowNode;
use Psalm\Internal\Type\TemplateResult;
use Psalm\Internal\Type\UnionTemplateHandler;
use Psalm\CodeLocation;
use Psalm\Context;
use Psalm\Issue\ImplicitToStringCast;
use Psalm\Issue\InvalidArgument;
use Psalm\Issue\InvalidScalarArgument;
use Psalm\Issue\InvalidLiteralArgument;
use Psalm\Issue\MixedArgument;
use Psalm\Issue\MixedArgumentTypeCoercion;
use Psalm\Issue\NoValue;
use Psalm\Issue\NullArgument;
use Psalm\Issue\PossiblyFalseArgument;
use Psalm\Issue\PossiblyInvalidArgument;
use Psalm\Issue\PossiblyNullArgument;
use Psalm\Issue\ArgumentTypeCoercion;
use Psalm\IssueBuffer;
use Psalm\Storage\FunctionLikeParameter;
use Psalm\Type;
use Psalm\Type\Atomic\TArray;
use Psalm\Type\Atomic\TClassString;
use Psalm\Type\Atomic\TCallable;
use Psalm\Type\Atomic\TList;
use function strtolower;
use function strpos;
use function explode;
use function count;
/**
* @internal
*/
class ArgumentAnalyzer
{
/**
* @param array<string, array<string, array{Type\Union, 1?:int}>> $class_generic_params
* @return false|null
*/
public static function checkArgumentMatches(
StatementsAnalyzer $statements_analyzer,
?string $cased_method_id,
?string $self_fq_class_name,
?string $static_fq_class_name,
CodeLocation $function_call_location,
?FunctionLikeParameter $function_param,
int $argument_offset,
PhpParser\Node\Arg $arg,
?Type\Union $arg_value_type,
Context $context,
array $class_generic_params,
?TemplateResult $template_result,
bool $specialize_taint,
bool $in_call_map
): ?bool {
$codebase = $statements_analyzer->getCodebase();
if (!$arg_value_type) {
if ($function_param && !$function_param->by_ref) {
if (!$context->collect_initializations
&& !$context->collect_mutations
&& $statements_analyzer->getFilePath() === $statements_analyzer->getRootFilePath()
&& (!(($parent_source = $statements_analyzer->getSource())
instanceof \Psalm\Internal\Analyzer\FunctionLikeAnalyzer)
|| !$parent_source->getSource() instanceof \Psalm\Internal\Analyzer\TraitAnalyzer)
) {
$codebase->analyzer->incrementMixedCount($statements_analyzer->getFilePath());
}
$param_type = $function_param->type;
if ($function_param->is_variadic
&& $param_type
&& $param_type->hasArray()
) {
/**
* @psalm-suppress PossiblyUndefinedStringArrayOffset
* @var TList|TArray
*/
$array_type = $param_type->getAtomicTypes()['array'];
if ($array_type instanceof TList) {
$param_type = $array_type->type_param;
} else {
$param_type = $array_type->type_params[1];
}
}
if ($param_type && !$param_type->hasMixed()) {
if (IssueBuffer::accepts(
new MixedArgument(
'Argument ' . ($argument_offset + 1) . ' of ' . $cased_method_id
. ' cannot be mixed, expecting ' . $param_type,
new CodeLocation($statements_analyzer->getSource(), $arg->value),
$cased_method_id
),
$statements_analyzer->getSuppressedIssues()
)) {
// fall through
}
}
}
return null;
}
if (!$function_param) {
return null;
}
if ($function_param->expect_variable
&& $arg_value_type->isSingleStringLiteral()
&& !$arg->value instanceof PhpParser\Node\Scalar\MagicConst
&& !$arg->value instanceof PhpParser\Node\Expr\ConstFetch
) {
$values = \preg_split('//u', $arg_value_type->getSingleStringLiteral()->value, -1, \PREG_SPLIT_NO_EMPTY);
$prev_ord = 0;
$gt_count = 0;
foreach ($values as $value) {
/**
* @var int
* @psalm-suppress UnnecessaryVarAnnotation
*/
$ord = \mb_ord($value);
if ($ord > $prev_ord) {
$gt_count++;
}
$prev_ord = $ord;
}
if (count($values) < 12 || ($gt_count / count($values)) < 0.8) {
if (IssueBuffer::accepts(
new InvalidLiteralArgument(
'Argument ' . ($argument_offset + 1) . ' of ' . $cased_method_id
. ' expects a non-literal value, ' . $arg_value_type->getId() . ' provided',
new CodeLocation($statements_analyzer->getSource(), $arg->value),
$cased_method_id
),
$statements_analyzer->getSuppressedIssues()
)) {
// fall through
}
}
}
if (self::checkFunctionLikeTypeMatches(
$statements_analyzer,
$codebase,
$cased_method_id,
$self_fq_class_name,
$static_fq_class_name,
$function_call_location,
$function_param,
$arg_value_type,
$argument_offset,
$arg,
$context,
$class_generic_params,
$template_result,
$specialize_taint,
$in_call_map
) === false) {
return false;
}
return null;
}
/**
* @param array<string, array<string, array{Type\Union, 1?:int}>> $class_generic_params
* @param array<string, array<string, array{Type\Union, 1?:int}>> $generic_params
* @param array<string, array<string, array{Type\Union}>> $template_types
* @return false|null
*/
private static function checkFunctionLikeTypeMatches(
StatementsAnalyzer $statements_analyzer,
Codebase $codebase,
?string $cased_method_id,
?string $self_fq_class_name,
?string $static_fq_class_name,
CodeLocation $function_call_location,
FunctionLikeParameter $function_param,
Type\Union $arg_type,
int $argument_offset,
PhpParser\Node\Arg $arg,
Context $context,
?array $class_generic_params,
?TemplateResult $template_result,
bool $specialize_taint,
bool $in_call_map
): ?bool {
if (!$function_param->type) {
if (!$codebase->infer_types_from_usage && !$statements_analyzer->control_flow_graph) {
return null;
}
$param_type = Type::getMixed();
} else {
$param_type = clone $function_param->type;
}
$bindable_template_params = [];
if ($template_result) {
$bindable_template_params = $param_type->getTemplateTypes();
}
if ($class_generic_params) {
$empty_generic_params = [];
$empty_template_result = new TemplateResult($class_generic_params, $empty_generic_params);
$arg_value_type = $statements_analyzer->node_data->getType($arg->value);
$param_type = UnionTemplateHandler::replaceTemplateTypesWithStandins(
$param_type,
$empty_template_result,
$codebase,
$statements_analyzer,
$arg_value_type,
$argument_offset,
$context->self ?: 'fn-' . $context->calling_function_id
);
$arg_type = UnionTemplateHandler::replaceTemplateTypesWithStandins(
$arg_type,
$empty_template_result,
$codebase,
$statements_analyzer,
$arg_value_type,
$argument_offset,
$context->self ?: 'fn-' . $context->calling_function_id
);
}
if ($template_result && $template_result->template_types) {
$arg_type_param = $arg_type;
if ($arg->unpack) {
$arg_type_param = null;
foreach ($arg_type->getAtomicTypes() as $arg_atomic_type) {
if ($arg_atomic_type instanceof Type\Atomic\TArray
|| $arg_atomic_type instanceof Type\Atomic\TList
|| $arg_atomic_type instanceof Type\Atomic\ObjectLike
) {
if ($arg_atomic_type instanceof Type\Atomic\ObjectLike) {
$arg_type_param = $arg_atomic_type->getGenericValueType();
} elseif ($arg_atomic_type instanceof Type\Atomic\TList) {
$arg_type_param = $arg_atomic_type->type_param;
} else {
$arg_type_param = $arg_atomic_type->type_params[1];
}
} elseif ($arg_atomic_type instanceof Type\Atomic\TIterable) {
$arg_type_param = $arg_atomic_type->type_params[1];
} elseif ($arg_atomic_type instanceof Type\Atomic\TNamedObject) {
ForeachAnalyzer::getKeyValueParamsForTraversableObject(
$arg_atomic_type,
$codebase,
$key_type,
$arg_type_param
);
}
}
if (!$arg_type_param) {
$arg_type_param = Type::getMixed();
$arg_type_param->parent_nodes = $arg_type->parent_nodes;
}
}
$param_type = UnionTemplateHandler::replaceTemplateTypesWithStandins(
$param_type,
$template_result,
$codebase,
$statements_analyzer,
$arg_type_param,
$argument_offset,
$context->self,
$context->calling_method_id ?: $context->calling_function_id
);
foreach ($bindable_template_params as $template_type) {
if (!isset(
$template_result->upper_bounds
[$template_type->param_name]
[$template_type->defining_class]
)
&& !isset(
$template_result->lower_bounds
[$template_type->param_name]
[$template_type->defining_class]
)
) {
$template_result->upper_bounds[$template_type->param_name][$template_type->defining_class] = [
clone $template_type->as,
0
];
}
}
}
if (!$context->check_variables) {
return null;
}
$parent_class = null;
$classlike_storage = null;
$static_classlike_storage = null;
if ($self_fq_class_name) {
$classlike_storage = $codebase->classlike_storage_provider->get($self_fq_class_name);
$parent_class = $classlike_storage->parent_class;
$static_classlike_storage = $classlike_storage;
if ($static_fq_class_name && $static_fq_class_name !== $self_fq_class_name) {
$static_classlike_storage = $codebase->classlike_storage_provider->get($static_fq_class_name);
}
}
$fleshed_out_type = \Psalm\Internal\Type\TypeExpander::expandUnion(
$codebase,
$param_type,
$classlike_storage ? $classlike_storage->name : null,
$static_classlike_storage ? $static_classlike_storage->name : null,
$parent_class,
true,
false,
$static_classlike_storage ? $static_classlike_storage->final : false
);
$fleshed_out_signature_type = $function_param->signature_type
? \Psalm\Internal\Type\TypeExpander::expandUnion(
$codebase,
$function_param->signature_type,
$classlike_storage ? $classlike_storage->name : null,
$static_classlike_storage ? $static_classlike_storage->name : null,
$parent_class
)
: null;
$unpacked_atomic_array = null;
if ($arg->unpack) {
if ($arg_type->hasMixed()) {
if (!$context->collect_initializations
&& !$context->collect_mutations
&& $statements_analyzer->getFilePath() === $statements_analyzer->getRootFilePath()
&& (!(($parent_source = $statements_analyzer->getSource())
instanceof \Psalm\Internal\Analyzer\FunctionLikeAnalyzer)
|| !$parent_source->getSource() instanceof \Psalm\Internal\Analyzer\TraitAnalyzer)
) {
$codebase->analyzer->incrementMixedCount($statements_analyzer->getFilePath());
}
if (IssueBuffer::accepts(
new MixedArgument(
'Argument ' . ($argument_offset + 1) . ' of ' . $cased_method_id
. ' cannot be ' . $arg_type->getId() . ', expecting array',
new CodeLocation($statements_analyzer->getSource(), $arg->value),
$cased_method_id
),
$statements_analyzer->getSuppressedIssues()
)) {
// fall through
}
if ($cased_method_id) {
$arg_location = new CodeLocation($statements_analyzer->getSource(), $arg->value);
self::processTaintedness(
$statements_analyzer,
$cased_method_id,
$argument_offset,
$arg_location,
$function_call_location,
$function_param,
$arg_type,
$arg->value,
$context,
$specialize_taint
);
}
return null;
}
if ($arg_type->hasArray()) {
/**
* @psalm-suppress PossiblyUndefinedStringArrayOffset
* @var Type\Atomic\TArray|Type\Atomic\TList|Type\Atomic\ObjectLike
*/
$unpacked_atomic_array = $arg_type->getAtomicTypes()['array'];
if ($unpacked_atomic_array instanceof Type\Atomic\ObjectLike) {
if ($unpacked_atomic_array->is_list
&& $argument_offset === 0
&& isset($unpacked_atomic_array->properties[$argument_offset])
) {
$arg_type = clone $unpacked_atomic_array->properties[$argument_offset];
} else {
$arg_type = $unpacked_atomic_array->getGenericValueType();
}
} elseif ($unpacked_atomic_array instanceof Type\Atomic\TList) {
$arg_type = $unpacked_atomic_array->type_param;
} else {
$arg_type = $unpacked_atomic_array->type_params[1];
}
} else {
foreach ($arg_type->getAtomicTypes() as $atomic_type) {
if (!$atomic_type->isIterable($codebase)) {
if (IssueBuffer::accepts(
new InvalidArgument(
'Argument ' . ($argument_offset + 1) . ' of ' . $cased_method_id
. ' expects array, ' . $atomic_type->getId() . ' provided',
new CodeLocation($statements_analyzer->getSource(), $arg->value),
$cased_method_id
),
$statements_analyzer->getSuppressedIssues()
)) {
// fall through
}
continue;
}
}
return null;
}
}
if (self::verifyType(
$statements_analyzer,
$arg_type,
$fleshed_out_type,
$fleshed_out_signature_type,
$cased_method_id,
$argument_offset,
new CodeLocation($statements_analyzer->getSource(), $arg->value),
$arg->value,
$context,
$function_param,
$arg->unpack,
$unpacked_atomic_array,
$specialize_taint,
$in_call_map,
$function_call_location
) === false) {
return false;
}
return null;
}
/**
* @param Type\Atomic\ObjectLike|Type\Atomic\TArray|Type\Atomic\TList $unpacked_atomic_array
* @return null|false
*/
public static function verifyType(
StatementsAnalyzer $statements_analyzer,
Type\Union $input_type,
Type\Union $param_type,
?Type\Union $signature_param_type,
?string $cased_method_id,
int $argument_offset,
CodeLocation $arg_location,
PhpParser\Node\Expr $input_expr,
Context $context,
FunctionLikeParameter $function_param,
bool $unpack,
?Type\Atomic $unpacked_atomic_array,
bool $specialize_taint,
bool $in_call_map,
CodeLocation $function_call_location
): ?bool {
$codebase = $statements_analyzer->getCodebase();
if ($param_type->hasMixed()) {
if ($codebase->infer_types_from_usage
&& !$input_type->hasMixed()
&& !$param_type->from_docblock
&& !$param_type->had_template
&& $cased_method_id
&& strpos($cased_method_id, '::')
&& !strpos($cased_method_id, '__')
) {
$method_parts = explode('::', $cased_method_id);
$method_id = new \Psalm\Internal\MethodIdentifier($method_parts[0], strtolower($method_parts[1]));
$declaring_method_id = $codebase->methods->getDeclaringMethodId($method_id);
if ($declaring_method_id) {
$id_lc = strtolower((string) $declaring_method_id);
if (!isset($codebase->analyzer->possible_method_param_types[$id_lc][$argument_offset])) {
$codebase->analyzer->possible_method_param_types[$id_lc][$argument_offset]
= clone $input_type;
} else {
$codebase->analyzer->possible_method_param_types[$id_lc][$argument_offset]
= Type::combineUnionTypes(
$codebase->analyzer->possible_method_param_types[$id_lc][$argument_offset],
clone $input_type,
$codebase
);
}
}
}
if ($cased_method_id) {
self::processTaintedness(
$statements_analyzer,
$cased_method_id,
$argument_offset,
$arg_location,
$function_call_location,
$function_param,
$input_type,
$input_expr,
$context,
$specialize_taint
);
}
return null;
}
$method_identifier = $cased_method_id ? ' of ' . $cased_method_id : '';
if ($input_type->hasMixed()) {
if (!$context->collect_initializations
&& !$context->collect_mutations
&& $statements_analyzer->getFilePath() === $statements_analyzer->getRootFilePath()
&& (!(($parent_source = $statements_analyzer->getSource())
instanceof \Psalm\Internal\Analyzer\FunctionLikeAnalyzer)
|| !$parent_source->getSource() instanceof \Psalm\Internal\Analyzer\TraitAnalyzer)
) {
$codebase->analyzer->incrementMixedCount($statements_analyzer->getFilePath());
}
if (IssueBuffer::accepts(
new MixedArgument(
'Argument ' . ($argument_offset + 1) . $method_identifier
. ' cannot be ' . $input_type->getId() . ', expecting ' .
$param_type,
$arg_location,
$cased_method_id
),
$statements_analyzer->getSuppressedIssues()
)) {
// fall through
}
if ($input_type->isMixed()) {
if (!$function_param->by_ref
&& !($function_param->is_variadic xor $unpack)
&& $cased_method_id !== 'echo'
&& $cased_method_id !== 'print'
&& (!$in_call_map || $context->strict_types)
) {
self::coerceValueAfterGatekeeperArgument(
$statements_analyzer,
$input_type,
false,
$input_expr,
$param_type,
$signature_param_type,
$context,
$unpack,
$unpacked_atomic_array
);
}
}
if ($cased_method_id) {
$input_type = self::processTaintedness(
$statements_analyzer,
$cased_method_id,
$argument_offset,
$arg_location,
$function_call_location,
$function_param,
$input_type,
$input_expr,
$context,
$specialize_taint
);
}
if ($input_type->isMixed()) {
return null;
}
}
if ($input_type->isNever()) {
if (IssueBuffer::accepts(
new NoValue(
'This function or method call never returns output',
$arg_location
),
$statements_analyzer->getSuppressedIssues()
)) {
// fall through
}
return null;
}
if (!$context->collect_initializations
&& !$context->collect_mutations
&& $statements_analyzer->getFilePath() === $statements_analyzer->getRootFilePath()
&& (!(($parent_source = $statements_analyzer->getSource())
instanceof \Psalm\Internal\Analyzer\FunctionLikeAnalyzer)
|| !$parent_source->getSource() instanceof \Psalm\Internal\Analyzer\TraitAnalyzer)
) {
$codebase->analyzer->incrementNonMixedCount($statements_analyzer->getFilePath());
}
if ($function_param->by_ref) {
$param_type->possibly_undefined = true;
}
if ($param_type->hasCallableType()
&& $param_type->isSingle()
&& $input_type->isSingleStringLiteral()
&& !\Psalm\Internal\Codebase\InternalCallMapHandler::inCallMap($input_type->getSingleStringLiteral()->value)
) {
foreach ($input_type->getAtomicTypes() as $key => $atomic_type) {
$candidate_callable = CallableTypeComparator::getCallableFromAtomic(
$codebase,
$atomic_type,
null,
$statements_analyzer
);
if ($candidate_callable) {
$input_type->removeType($key);
$input_type->addType($candidate_callable);
}
}
}
$union_comparison_results = new \Psalm\Internal\Type\Comparator\TypeComparisonResult();
$type_match_found = UnionTypeComparator::isContainedBy(
$codebase,
$input_type,
$param_type,
true,
true,
$union_comparison_results
);
$replace_input_type = false;
if ($union_comparison_results->replacement_union_type) {
$replace_input_type = true;
$input_type = $union_comparison_results->replacement_union_type;
}
if ($cased_method_id) {
$old_input_type = $input_type;
$input_type = self::processTaintedness(
$statements_analyzer,
$cased_method_id,
$argument_offset,
$arg_location,
$function_call_location,
$function_param,
$input_type,
$input_expr,
$context,
$specialize_taint
);
if ($old_input_type !== $input_type) {
$replace_input_type = true;
}
}
if ($type_match_found
&& $param_type->hasCallableType()
) {
$potential_method_ids = [];
foreach ($input_type->getAtomicTypes() as $input_type_part) {
if ($input_type_part instanceof Type\Atomic\ObjectLike) {
$potential_method_id = CallableTypeComparator::getCallableMethodIdFromObjectLike(
$input_type_part,
$codebase,
$context->calling_method_id,
$statements_analyzer->getFilePath()
);
if ($potential_method_id && $potential_method_id !== 'not-callable') {
$potential_method_ids[] = $potential_method_id;
}
} elseif ($input_type_part instanceof Type\Atomic\TLiteralString
&& strpos($input_type_part->value, '::')
) {
$parts = explode('::', $input_type_part->value);
$potential_method_ids[] = new \Psalm\Internal\MethodIdentifier(
$parts[0],
strtolower($parts[1])
);
}
}
foreach ($potential_method_ids as $potential_method_id) {
$codebase->methods->methodExists(
$potential_method_id,
$context->calling_method_id,
null,
$statements_analyzer,
$statements_analyzer->getFilePath()
);
}
}
if ($context->strict_types
&& !$input_type->hasArray()
&& !$param_type->from_docblock
&& $cased_method_id !== 'echo'
&& $cased_method_id !== 'print'
&& $cased_method_id !== 'sprintf'
) {
$union_comparison_results->scalar_type_match_found = false;
if ($union_comparison_results->to_string_cast) {
$union_comparison_results->to_string_cast = false;
$type_match_found = false;
}
}
if ($union_comparison_results->type_coerced && !$input_type->hasMixed()) {
if ($union_comparison_results->type_coerced_from_mixed) {
if (IssueBuffer::accepts(
new MixedArgumentTypeCoercion(
'Argument ' . ($argument_offset + 1) . $method_identifier . ' expects ' . $param_type->getId() .
', parent type ' . $input_type->getId() . ' provided',
$arg_location,
$cased_method_id
),
$statements_analyzer->getSuppressedIssues()
)) {
// keep soldiering on
}
} else {
if (IssueBuffer::accepts(
new ArgumentTypeCoercion(
'Argument ' . ($argument_offset + 1) . $method_identifier . ' expects ' . $param_type->getId() .
', parent type ' . $input_type->getId() . ' provided',
$arg_location,
$cased_method_id
),
$statements_analyzer->getSuppressedIssues()
)) {
// keep soldiering on
}
}
}
if ($union_comparison_results->to_string_cast && $cased_method_id !== 'echo' && $cased_method_id !== 'print') {
if (IssueBuffer::accepts(
new ImplicitToStringCast(
'Argument ' . ($argument_offset + 1) . $method_identifier . ' expects ' .
$param_type->getId() . ', ' . $input_type->getId() . ' provided with a __toString method',
$arg_location
),
$statements_analyzer->getSuppressedIssues()
)) {
// fall through
}
}
if (!$type_match_found && !$union_comparison_results->type_coerced) {
$types_can_be_identical = UnionTypeComparator::canBeContainedBy(
$codebase,
$input_type,
$param_type,
true,
true
);
if ($union_comparison_results->scalar_type_match_found) {
if ($cased_method_id !== 'echo' && $cased_method_id !== 'print') {
if (IssueBuffer::accepts(
new InvalidScalarArgument(
'Argument ' . ($argument_offset + 1) . $method_identifier . ' expects ' .
$param_type->getId() . ', ' . $input_type->getId() . ' provided',
$arg_location,
$cased_method_id
),
$statements_analyzer->getSuppressedIssues()
)) {
// fall through
}
}
} elseif ($types_can_be_identical) {
if (IssueBuffer::accepts(
new PossiblyInvalidArgument(
'Argument ' . ($argument_offset + 1) . $method_identifier . ' expects ' . $param_type->getId() .
', possibly different type ' . $input_type->getId() . ' provided',
$arg_location,
$cased_method_id
),
$statements_analyzer->getSuppressedIssues()
)) {
// fall through
}
} else {
if (IssueBuffer::accepts(
new InvalidArgument(
'Argument ' . ($argument_offset + 1) . $method_identifier . ' expects ' . $param_type->getId() .
', ' . $input_type->getId() . ' provided',
$arg_location,
$cased_method_id
),
$statements_analyzer->getSuppressedIssues()
)) {
// fall through
}
}
return null;
}
if ($input_expr instanceof PhpParser\Node\Scalar\String_
|| $input_expr instanceof PhpParser\Node\Expr\Array_
|| $input_expr instanceof PhpParser\Node\Expr\BinaryOp\Concat
) {
foreach ($param_type->getAtomicTypes() as $param_type_part) {
if ($param_type_part instanceof TClassString
&& $input_expr instanceof PhpParser\Node\Scalar\String_
&& $param_type->isSingle()
) {
if (ClassLikeAnalyzer::checkFullyQualifiedClassLikeName(
$statements_analyzer,
$input_expr->value,
$arg_location,
$context->self,
$context->calling_method_id,
$statements_analyzer->getSuppressedIssues()
) === false
) {
return null;
}
} elseif ($param_type_part instanceof TArray
&& $input_expr instanceof PhpParser\Node\Expr\Array_
) {
foreach ($param_type_part->type_params[1]->getAtomicTypes() as $param_array_type_part) {
if ($param_array_type_part instanceof TClassString) {
foreach ($input_expr->items as $item) {
if ($item && $item->value instanceof PhpParser\Node\Scalar\String_) {
if (ClassLikeAnalyzer::checkFullyQualifiedClassLikeName(
$statements_analyzer,
$item->value->value,
$arg_location,
$context->self,
$context->calling_method_id,
$statements_analyzer->getSuppressedIssues()
) === false
) {
return null;
}
}
}
}
}
} elseif ($param_type_part instanceof TCallable) {
$can_be_callable_like_array = false;
if ($param_type->hasArray()) {
/**
* @psalm-suppress PossiblyUndefinedStringArrayOffset
*/
$param_array_type = $param_type->getAtomicTypes()['array'];
$row_type = null;
if ($param_array_type instanceof TList) {
$row_type = $param_array_type->type_param;
} elseif ($param_array_type instanceof TArray) {
$row_type = $param_array_type->type_params[1];
} elseif ($param_array_type instanceof Type\Atomic\ObjectLike) {
$row_type = $param_array_type->getGenericArrayType()->type_params[1];
}
if ($row_type &&
($row_type->hasMixed() || $row_type->hasString())
) {
$can_be_callable_like_array = true;
}
}
if (!$can_be_callable_like_array) {
$function_ids = CallAnalyzer::getFunctionIdsFromCallableArg(
$statements_analyzer,
$input_expr
);
foreach ($function_ids as $function_id) {
if (strpos($function_id, '::') !== false) {
if ($function_id[0] === '$') {
$function_id = \substr($function_id, 1);
}
$function_id_parts = explode('&', $function_id);
$non_existent_method_ids = [];
$has_valid_method = false;
foreach ($function_id_parts as $function_id_part) {
[$callable_fq_class_name, $method_name] = explode('::', $function_id_part);
switch ($callable_fq_class_name) {
case 'self':
case 'static':
case 'parent':
$container_class = $statements_analyzer->getFQCLN();
if ($callable_fq_class_name === 'parent') {
$container_class = $statements_analyzer->getParentFQCLN();
}
if (!$container_class) {
continue 2;
}
$callable_fq_class_name = $container_class;
}
if (ClassLikeAnalyzer::checkFullyQualifiedClassLikeName(
$statements_analyzer,
$callable_fq_class_name,
$arg_location,
$context->self,
$context->calling_method_id,
$statements_analyzer->getSuppressedIssues()
) === false
) {
return null;
}
$function_id_part = new \Psalm\Internal\MethodIdentifier(
$callable_fq_class_name,
strtolower($method_name)
);
$call_method_id = new \Psalm\Internal\MethodIdentifier(
$callable_fq_class_name,
'__call'
);
if (!$codebase->classOrInterfaceExists($callable_fq_class_name)) {
return null;
}
if (!$codebase->methods->methodExists($function_id_part)
&& !$codebase->methods->methodExists($call_method_id)
) {
$non_existent_method_ids[] = $function_id_part;
} else {
$has_valid_method = true;
}
}
if (!$has_valid_method && !$param_type->hasString() && !$param_type->hasArray()) {
if (MethodAnalyzer::checkMethodExists(
$codebase,
$non_existent_method_ids[0],
$arg_location,
$statements_analyzer->getSuppressedIssues()
) === false
) {
return null;
}
}
} else {
if (!$param_type->hasString()
&& !$param_type->hasArray()
&& CallAnalyzer::checkFunctionExists(
$statements_analyzer,