mirror of
https://github.com/danog/psalm.git
synced 2024-12-15 02:47:02 +01:00
1404 lines
57 KiB
PHP
1404 lines
57 KiB
PHP
<?php
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namespace Psalm\Checker;
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use PhpParser;
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use Psalm\Checker\Statements\Expression\AssertionFinder;
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use Psalm\Codebase\CallMap;
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use Psalm\Context;
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use Psalm\CodeLocation;
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use Psalm\Issue\InvalidArgument;
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use Psalm\Issue\InvalidReturnType;
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use Psalm\IssueBuffer;
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use Psalm\StatementsSource;
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use Psalm\Type;
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use Psalm\Type\Reconciler;
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use Psalm\Type\TypeCombination;
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class FunctionChecker extends FunctionLikeChecker
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{
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/**
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* @param StatementsSource $source
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*/
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public function __construct(PhpParser\Node\Stmt\Function_ $function, StatementsSource $source)
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{
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parent::__construct($function, $source);
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}
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/**
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* @param string $function_id
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* @param array<PhpParser\Node\Arg> $call_args
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* @param CodeLocation $code_location
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* @param array $suppressed_issues
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*
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* @return Type\Union
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*/
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public static function getReturnTypeFromCallMapWithArgs(
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StatementsChecker $statements_checker,
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$function_id,
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array $call_args,
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Context $context,
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CodeLocation $code_location,
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array $suppressed_issues
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) {
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$call_map_key = strtolower($function_id);
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$call_map = CallMap::getCallMap();
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if (!isset($call_map[$call_map_key])) {
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throw new \InvalidArgumentException('Function ' . $function_id . ' was not found in callmap');
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}
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if (!$call_args) {
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switch ($call_map_key) {
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case 'getenv':
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return new Type\Union([new Type\Atomic\TArray([Type::getMixed(), Type::getString()])]);
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case 'gettimeofday':
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return new Type\Union([
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new Type\Atomic\TArray([
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Type::getString(),
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Type::getInt()
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])
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]);
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case 'microtime':
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return Type::getString();
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}
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} else {
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switch ($call_map_key) {
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case 'str_replace':
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case 'str_ireplace':
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case 'substr_replace':
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case 'preg_replace':
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case 'preg_replace_callback':
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if (isset($call_args[2]->value->inferredType)) {
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$subject_type = $call_args[2]->value->inferredType;
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if (!$subject_type->hasString() && $subject_type->hasArray()) {
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return Type::getArray();
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}
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$return_type = Type::getString();
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if (in_array($call_map_key, ['preg_replace', 'preg_replace_callback'], true)) {
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$return_type->addType(new Type\Atomic\TNull());
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$return_type->ignore_nullable_issues = true;
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}
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return $return_type;
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}
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return Type::getMixed();
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case 'pathinfo':
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if (isset($call_args[1])) {
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return Type::getString();
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}
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return Type::getArray();
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case 'count':
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if (isset($call_args[0]->value->inferredType)) {
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$atomic_types = $call_args[0]->value->inferredType->getTypes();
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if (count($atomic_types) === 1 && isset($atomic_types['array'])) {
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if ($atomic_types['array'] instanceof Type\Atomic\TArray) {
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return new Type\Union([
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$atomic_types['array']->count !== null
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? new Type\Atomic\TLiteralInt($atomic_types['array']->count)
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: new Type\Atomic\TInt
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]);
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} elseif ($atomic_types['array'] instanceof Type\Atomic\ObjectLike
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&& $atomic_types['array']->sealed
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) {
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return new Type\Union([
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new Type\Atomic\TLiteralInt(count($atomic_types['array']->properties))
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]);
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}
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}
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}
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break;
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case 'var_export':
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case 'highlight_string':
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case 'highlight_file':
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if (isset($call_args[1]->value->inferredType)) {
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$subject_type = $call_args[1]->value->inferredType;
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if ((string) $subject_type === 'true') {
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return Type::getString();
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}
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return new Type\Union([
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new Type\Atomic\TString,
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$call_map_key === 'var_export' ? new Type\Atomic\TNull : new Type\Atomic\TBool
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]);
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}
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return $call_map_key === 'var_export' ? Type::getVoid() : Type::getBool();
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case 'print_r':
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if (isset($call_args[1]->value->inferredType)) {
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$subject_type = $call_args[1]->value->inferredType;
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if ((string) $subject_type === 'true') {
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return Type::getString();
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}
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}
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return new Type\Union([
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new Type\Atomic\TString,
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new Type\Atomic\TTrue
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]);
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case 'microtime':
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if (isset($call_args[0]->value->inferredType)) {
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$subject_type = $call_args[0]->value->inferredType;
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if ((string) $subject_type === 'true') {
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return Type::getFloat();
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}
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if ((string) $subject_type === 'false') {
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return Type::getString();
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}
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}
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return new Type\Union([
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new Type\Atomic\TFloat,
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new Type\Atomic\TString
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]);
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case 'getenv':
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return new Type\Union([new Type\Atomic\TString, new Type\Atomic\TFalse]);
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case 'gettimeofday':
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if (isset($call_args[0]->value->inferredType)) {
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$subject_type = $call_args[0]->value->inferredType;
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if ((string) $subject_type === 'true') {
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return Type::getFloat();
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}
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if ((string) $subject_type === 'false') {
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return new Type\Union([
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new Type\Atomic\TArray([
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Type::getString(),
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Type::getInt()
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])
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]);
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}
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}
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break;
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case 'array_map':
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return self::getArrayMapReturnType(
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$statements_checker,
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$context,
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$call_args
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);
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case 'array_filter':
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return self::getArrayFilterReturnType(
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$statements_checker,
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$call_args,
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$code_location,
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$suppressed_issues
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);
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case 'array_reduce':
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return self::getArrayReduceReturnType(
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$statements_checker,
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$context,
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$call_args
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);
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case 'array_merge':
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return self::getArrayMergeReturnType($call_args);
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case 'array_rand':
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return self::getArrayRandReturnType($call_args);
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case 'array_slice':
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return self::getArraySliceReturnType($call_args);
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case 'explode':
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if ($call_args[0]->value instanceof PhpParser\Node\Scalar\String_) {
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if ($call_args[0]->value->value === '') {
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return Type::getFalse();
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}
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return new Type\Union([
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new Type\Atomic\TArray([
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Type::getInt(),
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Type::getString()
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])
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]);
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}
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break;
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case 'iterator_to_array':
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if (isset($call_args[0]->value->inferredType)
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&& $call_args[0]->value->inferredType->hasObjectType()
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) {
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$value_type = null;
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foreach ($call_args[0]->value->inferredType->getTypes() as $call_arg_atomic_type) {
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if ($call_arg_atomic_type instanceof Type\Atomic\TGenericObject) {
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$type_params = $call_arg_atomic_type->type_params;
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$last_param_type = $type_params[count($type_params) - 1];
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$value_type = $value_type
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? Type::combineUnionTypes($value_type, $last_param_type)
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: $last_param_type;
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}
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}
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if ($value_type) {
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return new Type\Union([
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new Type\Atomic\TArray([
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Type::getMixed(),
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$value_type
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])
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]);
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}
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}
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break;
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case 'array_column':
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$row_shape = null;
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// calculate row shape
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if (isset($call_args[0]->value->inferredType)
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&& $call_args[0]->value->inferredType->isSingle()
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&& $call_args[0]->value->inferredType->hasArray()
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) {
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$input_array = $call_args[0]->value->inferredType->getTypes()['array'];
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if ($input_array instanceof Type\Atomic\ObjectLike) {
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$row_type = $input_array->getGenericArrayType()->type_params[1];
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if ($row_type->isSingle() && $row_type->hasArray()) {
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$row_shape = $row_type->getTypes()['array'];
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}
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} elseif ($input_array instanceof Type\Atomic\TArray) {
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$row_type = $input_array->type_params[1];
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if ($row_type->isSingle() && $row_type->hasArray()) {
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$row_shape = $row_type->getTypes()['array'];
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}
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}
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}
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$value_column_name = null;
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// calculate value column name
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if (isset($call_args[1]->value->inferredType)) {
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$value_column_name_arg= $call_args[1]->value->inferredType;
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if ($value_column_name_arg->isSingleIntLiteral()) {
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$value_column_name = $value_column_name_arg->getSingleIntLiteral()->value;
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} elseif ($value_column_name_arg->isSingleStringLiteral()) {
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$value_column_name = $value_column_name_arg->getSingleStringLiteral()->value;
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}
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}
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$key_column_name = null;
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// calculate key column name
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if (isset($call_args[2]->value->inferredType)) {
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$key_column_name_arg = $call_args[2]->value->inferredType;
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if ($key_column_name_arg->isSingleIntLiteral()) {
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$key_column_name = $key_column_name_arg->getSingleIntLiteral()->value;
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} elseif ($key_column_name_arg->isSingleStringLiteral()) {
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$key_column_name = $key_column_name_arg->getSingleStringLiteral()->value;
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}
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}
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$result_key_type = Type::getMixed();
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$result_element_type = null;
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// calculate results
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if ($row_shape instanceof Type\Atomic\ObjectLike) {
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if ((null !== $value_column_name) && isset($row_shape->properties[$value_column_name])) {
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$result_element_type = $row_shape->properties[$value_column_name];
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} else {
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$result_element_type = Type::getMixed();
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}
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if ((null !== $key_column_name) && isset($row_shape->properties[$key_column_name])) {
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$result_key_type = $row_shape->properties[$key_column_name];
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}
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}
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if ($result_element_type) {
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return new Type\Union([
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new Type\Atomic\TArray([
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$result_key_type,
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$result_element_type
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])
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]);
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}
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break;
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case 'abs':
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if (isset($call_args[0]->value)) {
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$first_arg = $call_args[0]->value;
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if (isset($first_arg->inferredType)) {
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$numeric_types = [];
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foreach ($first_arg->inferredType->getTypes() as $inner_type) {
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if ($inner_type->isNumericType()) {
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$numeric_types[] = $inner_type;
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}
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}
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if ($numeric_types) {
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return new Type\Union($numeric_types);
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}
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}
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}
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break;
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case 'version_compare':
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if (count($call_args) > 2) {
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if (isset($call_args[2]->value->inferredType)) {
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$operator_type = $call_args[2]->value->inferredType;
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if (!$operator_type->isMixed()) {
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$project_checker = $statements_checker->getFileChecker()->project_checker;
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$codebase = $project_checker->codebase;
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$acceptable_operator_type = new Type\Union([
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new Type\Atomic\TLiteralString('<'),
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new Type\Atomic\TLiteralString('lt'),
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new Type\Atomic\TLiteralString('<='),
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new Type\Atomic\TLiteralString('le'),
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new Type\Atomic\TLiteralString('>'),
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new Type\Atomic\TLiteralString('gt'),
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new Type\Atomic\TLiteralString('>='),
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new Type\Atomic\TLiteralString('ge'),
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new Type\Atomic\TLiteralString('=='),
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new Type\Atomic\TLiteralString('='),
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new Type\Atomic\TLiteralString('eq'),
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new Type\Atomic\TLiteralString('!='),
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new Type\Atomic\TLiteralString('<>'),
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new Type\Atomic\TLiteralString('ne'),
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]);
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if (TypeChecker::isContainedBy(
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$codebase,
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$operator_type,
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$acceptable_operator_type
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)) {
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return Type::getBool();
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}
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}
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}
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return new Type\Union([
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new Type\Atomic\TBool,
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new Type\Atomic\TNull
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]);
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}
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return new Type\Union([
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new Type\Atomic\TLiteralInt(-1),
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new Type\Atomic\TLiteralInt(0),
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new Type\Atomic\TLiteralInt(1)
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]);
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case 'parse_url':
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if (count($call_args) > 1) {
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if (isset($call_args[1]->value->inferredType)) {
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$component_type = $call_args[1]->value->inferredType;
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if (!$component_type->isMixed()) {
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$project_checker = $statements_checker->getFileChecker()->project_checker;
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$codebase = $project_checker->codebase;
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$acceptable_string_component_type = new Type\Union([
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new Type\Atomic\TLiteralInt(PHP_URL_SCHEME),
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new Type\Atomic\TLiteralInt(PHP_URL_USER),
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new Type\Atomic\TLiteralInt(PHP_URL_PASS),
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new Type\Atomic\TLiteralInt(PHP_URL_HOST),
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new Type\Atomic\TLiteralInt(PHP_URL_PATH),
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new Type\Atomic\TLiteralInt(PHP_URL_QUERY),
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new Type\Atomic\TLiteralInt(PHP_URL_FRAGMENT),
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]);
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$acceptable_int_component_type = new Type\Union([
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new Type\Atomic\TLiteralInt(PHP_URL_PORT)
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]);
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if (TypeChecker::isContainedBy(
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$codebase,
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$component_type,
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$acceptable_string_component_type
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)) {
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$nullable_string = new Type\Union([
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new Type\Atomic\TString,
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new Type\Atomic\TNull
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]);
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$nullable_string->ignore_nullable_issues = true;
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return $nullable_string;
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}
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|
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if (TypeChecker::isContainedBy(
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$codebase,
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$component_type,
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$acceptable_int_component_type
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)) {
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$nullable_int = new Type\Union([
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new Type\Atomic\TInt,
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new Type\Atomic\TNull
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]);
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$nullable_int->ignore_nullable_issues = true;
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return $nullable_int;
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}
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}
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}
|
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|
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$nullable_string_or_int = new Type\Union([
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new Type\Atomic\TString,
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new Type\Atomic\TInt,
|
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new Type\Atomic\TNull
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]);
|
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$nullable_string_or_int->ignore_nullable_issues = true;
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return $nullable_string_or_int;
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}
|
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|
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$component_key_type = new Type\Union([
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new Type\Atomic\TLiteralString('scheme'),
|
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new Type\Atomic\TLiteralString('user'),
|
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new Type\Atomic\TLiteralString('pass'),
|
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new Type\Atomic\TLiteralString('host'),
|
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new Type\Atomic\TLiteralString('port'),
|
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new Type\Atomic\TLiteralString('path'),
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new Type\Atomic\TLiteralString('query'),
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new Type\Atomic\TLiteralString('fragment'),
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]);
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|
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$nullable_string_or_int = new Type\Union([
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new Type\Atomic\TArray([$component_key_type, Type::getMixed()]),
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new Type\Atomic\TFalse
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]);
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|
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$nullable_string_or_int->ignore_falsable_issues = true;
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|
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return $nullable_string_or_int;
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|
|
case 'min':
|
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case 'max':
|
|
if (isset($call_args[0])) {
|
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$first_arg = $call_args[0]->value;
|
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|
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if (isset($first_arg->inferredType)) {
|
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if ($first_arg->inferredType->hasArray()) {
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$array_type = $first_arg->inferredType->getTypes()['array'];
|
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if ($array_type instanceof Type\Atomic\ObjectLike) {
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return $array_type->getGenericValueType();
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}
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|
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if ($array_type instanceof Type\Atomic\TArray) {
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return clone $array_type->type_params[1];
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}
|
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} elseif ($first_arg->inferredType->hasScalarType() &&
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($second_arg = $call_args[1]->value) &&
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isset($second_arg->inferredType) &&
|
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$second_arg->inferredType->hasScalarType()
|
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) {
|
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return Type::combineUnionTypes($first_arg->inferredType, $second_arg->inferredType);
|
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}
|
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}
|
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}
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|
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break;
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|
|
case 'filter_var':
|
|
if (isset($call_args[1]->value->inferredType)
|
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&& $call_args[1]->value->inferredType->isSingleIntLiteral()
|
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) {
|
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$filter_type_type = $call_args[1]->value->inferredType->getSingleIntLiteral();
|
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|
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$filter_type = null;
|
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|
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switch ($filter_type_type->value) {
|
|
case \FILTER_VALIDATE_INT:
|
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$filter_type = Type::getInt();
|
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break;
|
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|
|
case \FILTER_VALIDATE_FLOAT:
|
|
$filter_type = Type::getFloat();
|
|
break;
|
|
|
|
case \FILTER_VALIDATE_BOOLEAN:
|
|
$filter_type = Type::getBool();
|
|
|
|
break;
|
|
|
|
case \FILTER_VALIDATE_IP:
|
|
case \FILTER_VALIDATE_MAC:
|
|
case \FILTER_VALIDATE_REGEXP:
|
|
case \FILTER_VALIDATE_URL:
|
|
case \FILTER_VALIDATE_EMAIL:
|
|
case \FILTER_VALIDATE_DOMAIN:
|
|
$filter_type = Type::getString();
|
|
break;
|
|
}
|
|
|
|
$has_object_like = false;
|
|
|
|
if (isset($call_args[2]->value->inferredType) && $filter_type) {
|
|
foreach ($call_args[2]->value->inferredType->getTypes() as $atomic_type) {
|
|
if ($atomic_type instanceof Type\Atomic\ObjectLike) {
|
|
$has_object_like = true;
|
|
|
|
if (isset($atomic_type->properties['default'])) {
|
|
$filter_type = Type::combineUnionTypes(
|
|
$filter_type,
|
|
$atomic_type->properties['default']
|
|
);
|
|
} else {
|
|
$filter_type->addType(new Type\Atomic\TFalse);
|
|
}
|
|
|
|
if (isset($atomic_type->properties['flags'])
|
|
&& $atomic_type->properties['flags']->isSingleIntLiteral()
|
|
) {
|
|
$filter_flag_type =
|
|
$atomic_type->properties['flags']->getSingleIntLiteral();
|
|
|
|
if ($filter_type->hasBool()
|
|
&& $filter_flag_type->value === \FILTER_NULL_ON_FAILURE
|
|
) {
|
|
$filter_type->addType(new Type\Atomic\TNull);
|
|
}
|
|
}
|
|
} elseif ($atomic_type instanceof Type\Atomic\TLiteralInt) {
|
|
if ($filter_type->hasBool() && $atomic_type->value === \FILTER_NULL_ON_FAILURE) {
|
|
$filter_type->addType(new Type\Atomic\TNull);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!$has_object_like && $filter_type) {
|
|
$filter_type->addType(new Type\Atomic\TFalse);
|
|
}
|
|
|
|
return $filter_type ?: Type::getMixed();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!$call_map[$call_map_key][0]) {
|
|
return Type::getMixed();
|
|
}
|
|
|
|
$call_map_return_type = Type::parseString($call_map[$call_map_key][0]);
|
|
|
|
switch ($call_map_key) {
|
|
case 'mb_strpos':
|
|
case 'mb_strrpos':
|
|
case 'mb_stripos':
|
|
case 'mb_strripos':
|
|
case 'strpos':
|
|
case 'strrpos':
|
|
case 'stripos':
|
|
case 'strripos':
|
|
case 'strstr':
|
|
case 'stristr':
|
|
case 'strrchr':
|
|
case 'strpbrk':
|
|
case 'array_search':
|
|
break;
|
|
|
|
default:
|
|
if ($call_map_return_type->isFalsable()) {
|
|
$call_map_return_type->ignore_falsable_issues = true;
|
|
}
|
|
}
|
|
|
|
return $call_map_return_type;
|
|
}
|
|
|
|
/**
|
|
* @param array<PhpParser\Node\Arg> $call_args
|
|
*
|
|
* @return Type\Union
|
|
*/
|
|
private static function getArrayMergeReturnType(array $call_args)
|
|
{
|
|
$inner_value_types = [];
|
|
$inner_key_types = [];
|
|
|
|
$generic_properties = [];
|
|
|
|
foreach ($call_args as $call_arg) {
|
|
if (!isset($call_arg->value->inferredType)) {
|
|
return Type::getArray();
|
|
}
|
|
|
|
foreach ($call_arg->value->inferredType->getTypes() as $type_part) {
|
|
if ($call_arg->unpack) {
|
|
if (!$type_part instanceof Type\Atomic\TArray) {
|
|
if ($type_part instanceof Type\Atomic\ObjectLike) {
|
|
$type_part_value_type = $type_part->getGenericValueType();
|
|
} else {
|
|
return Type::getArray();
|
|
}
|
|
} else {
|
|
$type_part_value_type = $type_part->type_params[1];
|
|
}
|
|
|
|
$unpacked_type_parts = [];
|
|
|
|
foreach ($type_part_value_type->getTypes() as $value_type_part) {
|
|
$unpacked_type_parts[] = $value_type_part;
|
|
}
|
|
} else {
|
|
$unpacked_type_parts = [$type_part];
|
|
}
|
|
|
|
foreach ($unpacked_type_parts as $unpacked_type_part) {
|
|
if (!$unpacked_type_part instanceof Type\Atomic\TArray) {
|
|
if ($unpacked_type_part instanceof Type\Atomic\ObjectLike) {
|
|
if ($generic_properties !== null) {
|
|
$generic_properties = array_merge(
|
|
$generic_properties,
|
|
$unpacked_type_part->properties
|
|
);
|
|
}
|
|
|
|
$unpacked_type_part = $unpacked_type_part->getGenericArrayType();
|
|
} else {
|
|
if ($unpacked_type_part instanceof Type\Atomic\TMixed
|
|
&& $unpacked_type_part->from_isset
|
|
) {
|
|
$unpacked_type_part = new Type\Atomic\TArray([
|
|
Type::getMixed(),
|
|
Type::getMixed(true)
|
|
]);
|
|
} else {
|
|
return Type::getArray();
|
|
}
|
|
}
|
|
} elseif (!$unpacked_type_part->type_params[0]->isEmpty()) {
|
|
$generic_properties = null;
|
|
}
|
|
|
|
if ($unpacked_type_part->type_params[1]->isEmpty()) {
|
|
continue;
|
|
}
|
|
|
|
$inner_key_types = array_merge(
|
|
$inner_key_types,
|
|
array_values($unpacked_type_part->type_params[0]->getTypes())
|
|
);
|
|
$inner_value_types = array_merge(
|
|
$inner_value_types,
|
|
array_values($unpacked_type_part->type_params[1]->getTypes())
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($generic_properties) {
|
|
return new Type\Union([
|
|
new Type\Atomic\ObjectLike($generic_properties),
|
|
]);
|
|
}
|
|
|
|
if ($inner_value_types) {
|
|
return new Type\Union([
|
|
new Type\Atomic\TArray([
|
|
TypeCombination::combineTypes($inner_key_types),
|
|
TypeCombination::combineTypes($inner_value_types),
|
|
]),
|
|
]);
|
|
}
|
|
|
|
return Type::getArray();
|
|
}
|
|
|
|
/**
|
|
* @param array<PhpParser\Node\Arg> $call_args
|
|
*
|
|
* @return Type\Union
|
|
*/
|
|
private static function getArrayRandReturnType(array $call_args)
|
|
{
|
|
$first_arg = isset($call_args[0]->value) ? $call_args[0]->value : null;
|
|
$second_arg = isset($call_args[1]->value) ? $call_args[1]->value : null;
|
|
|
|
$first_arg_array = $first_arg
|
|
&& isset($first_arg->inferredType)
|
|
&& $first_arg->inferredType->hasType('array')
|
|
&& ($array_atomic_type = $first_arg->inferredType->getTypes()['array'])
|
|
&& ($array_atomic_type instanceof Type\Atomic\TArray ||
|
|
$array_atomic_type instanceof Type\Atomic\ObjectLike)
|
|
? $array_atomic_type
|
|
: null;
|
|
|
|
if (!$first_arg_array) {
|
|
return Type::getMixed();
|
|
}
|
|
|
|
if ($first_arg_array instanceof Type\Atomic\TArray) {
|
|
$key_type = clone $first_arg_array->type_params[0];
|
|
} else {
|
|
$key_type = $first_arg_array->getGenericKeyType();
|
|
}
|
|
|
|
if (!$second_arg
|
|
|| ($second_arg instanceof PhpParser\Node\Scalar\LNumber && $second_arg->value === 1)
|
|
) {
|
|
return $key_type;
|
|
}
|
|
|
|
$arr_type = new Type\Union([
|
|
new Type\Atomic\TArray([
|
|
Type::getInt(),
|
|
$key_type,
|
|
]),
|
|
]);
|
|
|
|
if ($second_arg instanceof PhpParser\Node\Scalar\LNumber) {
|
|
return $arr_type;
|
|
}
|
|
|
|
return Type::combineUnionTypes($key_type, $arr_type);
|
|
}
|
|
|
|
/**
|
|
* @param array<PhpParser\Node\Arg> $call_args
|
|
*
|
|
* @return Type\Union
|
|
*/
|
|
private static function getArraySliceReturnType(array $call_args)
|
|
{
|
|
$first_arg = isset($call_args[0]->value) ? $call_args[0]->value : null;
|
|
$preserve_keys_arg = isset($call_args[3]->value) ? $call_args[3]->value : null;
|
|
|
|
$first_arg_array = $first_arg
|
|
&& isset($first_arg->inferredType)
|
|
&& $first_arg->inferredType->hasType('array')
|
|
&& ($array_atomic_type = $first_arg->inferredType->getTypes()['array'])
|
|
&& ($array_atomic_type instanceof Type\Atomic\TArray ||
|
|
$array_atomic_type instanceof Type\Atomic\ObjectLike)
|
|
? $array_atomic_type
|
|
: null;
|
|
|
|
if (!$first_arg_array) {
|
|
return Type::getArray();
|
|
}
|
|
|
|
if (!$preserve_keys_arg
|
|
|| ($preserve_keys_arg instanceof PhpParser\Node\Expr\ConstFetch
|
|
&& strtolower($preserve_keys_arg->name->parts[0]) === 'false')
|
|
) {
|
|
if ($first_arg_array instanceof Type\Atomic\TArray) {
|
|
$value_type = clone $first_arg_array->type_params[1];
|
|
} else {
|
|
$value_type = $first_arg_array->getGenericValueType();
|
|
}
|
|
|
|
return new Type\Union([
|
|
new Type\Atomic\TArray([
|
|
Type::getInt(),
|
|
$value_type,
|
|
]),
|
|
]);
|
|
}
|
|
|
|
if ($first_arg_array instanceof Type\Atomic\TArray) {
|
|
return new Type\Union([clone $first_arg_array]);
|
|
}
|
|
|
|
return new Type\Union([$first_arg_array->getGenericArrayType()]);
|
|
}
|
|
|
|
/**
|
|
* @param array<PhpParser\Node\Arg> $call_args
|
|
* @param CodeLocation $code_location
|
|
* @param array $suppressed_issues
|
|
*
|
|
* @return Type\Union
|
|
*/
|
|
private static function getArrayMapReturnType(
|
|
StatementsChecker $statements_checker,
|
|
Context $context,
|
|
$call_args
|
|
) {
|
|
$array_arg = isset($call_args[1]->value) ? $call_args[1]->value : null;
|
|
|
|
$array_arg_type = null;
|
|
|
|
if ($array_arg && isset($array_arg->inferredType)) {
|
|
$arg_types = $array_arg->inferredType->getTypes();
|
|
|
|
if (isset($arg_types['array'])
|
|
&& ($arg_types['array'] instanceof Type\Atomic\TArray
|
|
|| $arg_types['array'] instanceof Type\Atomic\ObjectLike)
|
|
) {
|
|
$array_arg_type = $arg_types['array'];
|
|
}
|
|
}
|
|
|
|
if (isset($call_args[0])) {
|
|
$function_call_arg = $call_args[0];
|
|
|
|
if (count($call_args) === 2) {
|
|
if ($array_arg_type instanceof Type\Atomic\ObjectLike) {
|
|
$generic_key_type = $array_arg_type->getGenericKeyType();
|
|
} else {
|
|
$generic_key_type = $array_arg_type ? clone $array_arg_type->type_params[0] : Type::getMixed();
|
|
}
|
|
} else {
|
|
$generic_key_type = Type::getInt();
|
|
}
|
|
|
|
if (isset($function_call_arg->value->inferredType)
|
|
&& ($first_arg_atomic_types = $function_call_arg->value->inferredType->getTypes())
|
|
&& ($closure_atomic_type = isset($first_arg_atomic_types['Closure'])
|
|
? $first_arg_atomic_types['Closure']
|
|
: null)
|
|
&& $closure_atomic_type instanceof Type\Atomic\Fn
|
|
) {
|
|
$closure_return_type = $closure_atomic_type->return_type ?: Type::getMixed();
|
|
|
|
if ($closure_return_type->isVoid()) {
|
|
$closure_return_type = Type::getNull();
|
|
}
|
|
|
|
$inner_type = clone $closure_return_type;
|
|
|
|
if ($array_arg_type instanceof Type\Atomic\ObjectLike && count($call_args) === 2) {
|
|
return new Type\Union([
|
|
new Type\Atomic\ObjectLike(
|
|
array_map(
|
|
/**
|
|
* @return Type\Union
|
|
*/
|
|
function (Type\Union $_) use ($inner_type) {
|
|
return clone $inner_type;
|
|
},
|
|
$array_arg_type->properties
|
|
)
|
|
),
|
|
]);
|
|
}
|
|
|
|
return new Type\Union([
|
|
new Type\Atomic\TArray([
|
|
$generic_key_type,
|
|
$inner_type,
|
|
]),
|
|
]);
|
|
} elseif ($function_call_arg->value instanceof PhpParser\Node\Scalar\String_
|
|
|| $function_call_arg->value instanceof PhpParser\Node\Expr\Array_
|
|
|| $function_call_arg->value instanceof PhpParser\Node\Expr\BinaryOp\Concat
|
|
) {
|
|
$mapping_function_ids = Statements\Expression\CallChecker::getFunctionIdsFromCallableArg(
|
|
$statements_checker,
|
|
$function_call_arg->value
|
|
);
|
|
|
|
$call_map = CallMap::getCallMap();
|
|
|
|
$mapping_return_type = null;
|
|
|
|
$project_checker = $statements_checker->getFileChecker()->project_checker;
|
|
$codebase = $project_checker->codebase;
|
|
|
|
foreach ($mapping_function_ids as $mapping_function_id) {
|
|
$mapping_function_id = strtolower($mapping_function_id);
|
|
|
|
$mapping_function_id_parts = explode('&', $mapping_function_id);
|
|
|
|
$part_match_found = false;
|
|
|
|
foreach ($mapping_function_id_parts as $mapping_function_id_part) {
|
|
if (isset($call_map[$mapping_function_id_part][0])) {
|
|
if ($call_map[$mapping_function_id_part][0]) {
|
|
$mapped_function_return =
|
|
Type::parseString($call_map[$mapping_function_id_part][0]);
|
|
|
|
if ($mapping_return_type) {
|
|
$mapping_return_type = Type::combineUnionTypes(
|
|
$mapping_return_type,
|
|
$mapped_function_return
|
|
);
|
|
} else {
|
|
$mapping_return_type = $mapped_function_return;
|
|
}
|
|
|
|
$part_match_found = true;
|
|
}
|
|
} else {
|
|
if (strpos($mapping_function_id_part, '::') !== false) {
|
|
list($callable_fq_class_name) = explode('::', $mapping_function_id_part);
|
|
|
|
if (in_array($callable_fq_class_name, ['self', 'static', 'parent'], true)) {
|
|
continue;
|
|
}
|
|
|
|
if (!$codebase->methods->methodExists(
|
|
$mapping_function_id_part,
|
|
$context->calling_method_id,
|
|
new CodeLocation(
|
|
$statements_checker->getSource(),
|
|
$function_call_arg->value
|
|
)
|
|
)) {
|
|
continue;
|
|
}
|
|
|
|
$part_match_found = true;
|
|
|
|
$self_class = 'self';
|
|
|
|
$return_type = $codebase->methods->getMethodReturnType(
|
|
$mapping_function_id_part,
|
|
$self_class
|
|
) ?: Type::getMixed();
|
|
|
|
if ($mapping_return_type) {
|
|
$mapping_return_type = Type::combineUnionTypes(
|
|
$mapping_return_type,
|
|
$return_type
|
|
);
|
|
} else {
|
|
$mapping_return_type = $return_type;
|
|
}
|
|
} else {
|
|
if (!$codebase->functions->functionExists(
|
|
$statements_checker,
|
|
$mapping_function_id_part
|
|
)) {
|
|
$mapping_return_type = Type::getMixed();
|
|
continue;
|
|
}
|
|
|
|
$part_match_found = true;
|
|
|
|
$function_storage = $codebase->functions->getStorage(
|
|
$statements_checker,
|
|
$mapping_function_id_part
|
|
);
|
|
|
|
$return_type = $function_storage->return_type ?: Type::getMixed();
|
|
|
|
if ($mapping_return_type) {
|
|
$mapping_return_type = Type::combineUnionTypes(
|
|
$mapping_return_type,
|
|
$return_type
|
|
);
|
|
} else {
|
|
$mapping_return_type = $return_type;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($part_match_found === false) {
|
|
$mapping_return_type = Type::getMixed();
|
|
}
|
|
}
|
|
|
|
if ($mapping_return_type) {
|
|
if ($array_arg_type instanceof Type\Atomic\ObjectLike && count($call_args) === 2) {
|
|
return new Type\Union([
|
|
new Type\Atomic\ObjectLike(
|
|
array_map(
|
|
/**
|
|
* @return Type\Union
|
|
*/
|
|
function (Type\Union $_) use ($mapping_return_type) {
|
|
return clone $mapping_return_type;
|
|
},
|
|
$array_arg_type->properties
|
|
)
|
|
),
|
|
]);
|
|
}
|
|
|
|
return new Type\Union([
|
|
new Type\Atomic\TArray([
|
|
$generic_key_type,
|
|
$mapping_return_type,
|
|
]),
|
|
]);
|
|
}
|
|
}
|
|
}
|
|
|
|
return Type::getArray();
|
|
}
|
|
|
|
/**
|
|
* @param array<PhpParser\Node\Arg> $call_args
|
|
* @param CodeLocation $code_location
|
|
* @param array $suppressed_issues
|
|
*
|
|
* @return Type\Union
|
|
*/
|
|
private static function getArrayReduceReturnType(
|
|
StatementsChecker $statements_checker,
|
|
Context $context,
|
|
array $call_args
|
|
) {
|
|
if (!isset($call_args[0]) || !isset($call_args[1])) {
|
|
return Type::getMixed();
|
|
}
|
|
|
|
$project_checker = $statements_checker->getFileChecker()->project_checker;
|
|
|
|
$array_arg = $call_args[0]->value;
|
|
$function_call_arg = $call_args[1]->value;
|
|
|
|
if (!isset($array_arg->inferredType) || !isset($function_call_arg->inferredType)) {
|
|
return Type::getMixed();
|
|
}
|
|
|
|
$array_arg_type = null;
|
|
|
|
$array_arg_types = $array_arg->inferredType->getTypes();
|
|
|
|
if (isset($array_arg_types['array'])
|
|
&& ($array_arg_types['array'] instanceof Type\Atomic\TArray
|
|
|| $array_arg_types['array'] instanceof Type\Atomic\ObjectLike)
|
|
) {
|
|
$array_arg_type = $array_arg_types['array'];
|
|
|
|
if ($array_arg_type instanceof Type\Atomic\ObjectLike) {
|
|
$array_arg_type = $array_arg_type->getGenericArrayType();
|
|
}
|
|
}
|
|
|
|
if (!isset($call_args[2])) {
|
|
$reduce_return_type = Type::getNull();
|
|
$reduce_return_type->ignore_nullable_issues = true;
|
|
} else {
|
|
if (!isset($call_args[2]->value->inferredType)) {
|
|
return Type::getMixed();
|
|
}
|
|
|
|
$reduce_return_type = $call_args[2]->value->inferredType;
|
|
|
|
if ($reduce_return_type->isMixed()) {
|
|
return Type::getMixed();
|
|
}
|
|
}
|
|
|
|
$initial_type = $reduce_return_type;
|
|
|
|
if (($first_arg_atomic_types = $function_call_arg->inferredType->getTypes())
|
|
&& ($closure_atomic_type = isset($first_arg_atomic_types['Closure'])
|
|
? $first_arg_atomic_types['Closure']
|
|
: null)
|
|
&& $closure_atomic_type instanceof Type\Atomic\Fn
|
|
) {
|
|
$closure_return_type = $closure_atomic_type->return_type ?: Type::getMixed();
|
|
|
|
if ($closure_return_type->isVoid()) {
|
|
$closure_return_type = Type::getNull();
|
|
}
|
|
|
|
$reduce_return_type = Type::combineUnionTypes($closure_return_type, $reduce_return_type);
|
|
|
|
if ($closure_atomic_type->params !== null) {
|
|
if (count($closure_atomic_type->params) < 2) {
|
|
if (IssueBuffer::accepts(
|
|
new InvalidArgument(
|
|
'The closure passed to array_reduce needs two params',
|
|
new CodeLocation($statements_checker->getSource(), $function_call_arg)
|
|
),
|
|
$statements_checker->getSuppressedIssues()
|
|
)) {
|
|
// fall through
|
|
}
|
|
|
|
return Type::getMixed();
|
|
}
|
|
|
|
$carry_param = $closure_atomic_type->params[0];
|
|
$item_param = $closure_atomic_type->params[1];
|
|
|
|
if ($carry_param->type
|
|
&& (!TypeChecker::isContainedBy(
|
|
$project_checker->codebase,
|
|
$initial_type,
|
|
$carry_param->type
|
|
) || (!$reduce_return_type->isMixed()
|
|
&& !TypeChecker::isContainedBy(
|
|
$project_checker->codebase,
|
|
$reduce_return_type,
|
|
$carry_param->type
|
|
)
|
|
)
|
|
)
|
|
) {
|
|
if (IssueBuffer::accepts(
|
|
new InvalidArgument(
|
|
'The first param of the closure passed to array_reduce must take '
|
|
. $reduce_return_type . ' but only accepts ' . $carry_param->type,
|
|
$carry_param->type_location
|
|
?: new CodeLocation($statements_checker->getSource(), $function_call_arg)
|
|
),
|
|
$statements_checker->getSuppressedIssues()
|
|
)) {
|
|
// fall through
|
|
}
|
|
|
|
return Type::getMixed();
|
|
}
|
|
|
|
if ($item_param->type
|
|
&& $array_arg_type
|
|
&& !$array_arg_type->type_params[1]->isMixed()
|
|
&& !TypeChecker::isContainedBy(
|
|
$project_checker->codebase,
|
|
$array_arg_type->type_params[1],
|
|
$item_param->type
|
|
)
|
|
) {
|
|
if (IssueBuffer::accepts(
|
|
new InvalidArgument(
|
|
'The second param of the closure passed to array_reduce must take '
|
|
. $array_arg_type->type_params[1] . ' but only accepts ' . $item_param->type,
|
|
$item_param->type_location
|
|
?: new CodeLocation($statements_checker->getSource(), $function_call_arg)
|
|
),
|
|
$statements_checker->getSuppressedIssues()
|
|
)) {
|
|
// fall through
|
|
}
|
|
|
|
return Type::getMixed();
|
|
}
|
|
}
|
|
|
|
return $reduce_return_type;
|
|
}
|
|
|
|
if ($function_call_arg instanceof PhpParser\Node\Scalar\String_
|
|
|| $function_call_arg instanceof PhpParser\Node\Expr\Array_
|
|
|| $function_call_arg instanceof PhpParser\Node\Expr\BinaryOp\Concat
|
|
) {
|
|
$mapping_function_ids = Statements\Expression\CallChecker::getFunctionIdsFromCallableArg(
|
|
$statements_checker,
|
|
$function_call_arg
|
|
);
|
|
|
|
$call_map = CallMap::getCallMap();
|
|
|
|
$project_checker = $statements_checker->getFileChecker()->project_checker;
|
|
$codebase = $project_checker->codebase;
|
|
|
|
foreach ($mapping_function_ids as $mapping_function_id) {
|
|
$mapping_function_id = strtolower($mapping_function_id);
|
|
|
|
$mapping_function_id_parts = explode('&', $mapping_function_id);
|
|
|
|
$part_match_found = false;
|
|
|
|
foreach ($mapping_function_id_parts as $mapping_function_id_part) {
|
|
if (isset($call_map[$mapping_function_id_part][0])) {
|
|
if ($call_map[$mapping_function_id_part][0]) {
|
|
$mapped_function_return =
|
|
Type::parseString($call_map[$mapping_function_id_part][0]);
|
|
|
|
$reduce_return_type = Type::combineUnionTypes(
|
|
$reduce_return_type,
|
|
$mapped_function_return
|
|
);
|
|
|
|
$part_match_found = true;
|
|
}
|
|
} else {
|
|
if (strpos($mapping_function_id_part, '::') !== false) {
|
|
list($callable_fq_class_name) = explode('::', $mapping_function_id_part);
|
|
|
|
if (in_array($callable_fq_class_name, ['self', 'static', 'parent'], true)) {
|
|
continue;
|
|
}
|
|
|
|
if (!$codebase->methods->methodExists(
|
|
$mapping_function_id_part,
|
|
$context->calling_method_id,
|
|
new CodeLocation(
|
|
$statements_checker->getSource(),
|
|
$function_call_arg
|
|
)
|
|
)) {
|
|
continue;
|
|
}
|
|
|
|
$part_match_found = true;
|
|
|
|
$self_class = 'self';
|
|
|
|
$return_type = $codebase->methods->getMethodReturnType(
|
|
$mapping_function_id_part,
|
|
$self_class
|
|
) ?: Type::getMixed();
|
|
|
|
$reduce_return_type = Type::combineUnionTypes(
|
|
$reduce_return_type,
|
|
$return_type
|
|
);
|
|
} else {
|
|
if (!$codebase->functions->functionExists(
|
|
$statements_checker,
|
|
$mapping_function_id_part
|
|
)) {
|
|
return Type::getMixed();
|
|
}
|
|
|
|
$part_match_found = true;
|
|
|
|
$function_storage = $codebase->functions->getStorage(
|
|
$statements_checker,
|
|
$mapping_function_id_part
|
|
);
|
|
|
|
$return_type = $function_storage->return_type ?: Type::getMixed();
|
|
|
|
$reduce_return_type = Type::combineUnionTypes(
|
|
$reduce_return_type,
|
|
$return_type
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($part_match_found === false) {
|
|
return Type::getMixed();
|
|
}
|
|
}
|
|
|
|
return $reduce_return_type;
|
|
}
|
|
|
|
return Type::getMixed();
|
|
}
|
|
|
|
/**
|
|
* @param array<PhpParser\Node\Arg> $call_args
|
|
* @param CodeLocation $code_location
|
|
* @param array $suppressed_issues
|
|
*
|
|
* @return Type\Union
|
|
*/
|
|
private static function getArrayFilterReturnType(
|
|
StatementsChecker $statements_checker,
|
|
$call_args,
|
|
CodeLocation $code_location,
|
|
array $suppressed_issues
|
|
) {
|
|
$array_arg = isset($call_args[0]->value) ? $call_args[0]->value : null;
|
|
|
|
$first_arg_array = $array_arg
|
|
&& isset($array_arg->inferredType)
|
|
&& $array_arg->inferredType->hasType('array')
|
|
&& ($array_atomic_type = $array_arg->inferredType->getTypes()['array'])
|
|
&& ($array_atomic_type instanceof Type\Atomic\TArray ||
|
|
$array_atomic_type instanceof Type\Atomic\ObjectLike)
|
|
? $array_atomic_type
|
|
: null;
|
|
|
|
if (!$first_arg_array) {
|
|
return Type::getArray();
|
|
}
|
|
|
|
if ($first_arg_array instanceof Type\Atomic\TArray) {
|
|
$inner_type = $first_arg_array->type_params[1];
|
|
$key_type = clone $first_arg_array->type_params[0];
|
|
} else {
|
|
$inner_type = $first_arg_array->getGenericValueType();
|
|
$key_type = $first_arg_array->getGenericKeyType();
|
|
}
|
|
|
|
if (!isset($call_args[1])) {
|
|
$inner_type->removeType('null');
|
|
$inner_type->removeType('false');
|
|
} elseif (!isset($call_args[2])) {
|
|
$function_call_arg = $call_args[1];
|
|
|
|
if ($function_call_arg->value instanceof PhpParser\Node\Expr\Closure
|
|
&& isset($function_call_arg->value->inferredType)
|
|
&& ($closure_atomic_type = $function_call_arg->value->inferredType->getTypes()['Closure'])
|
|
&& $closure_atomic_type instanceof Type\Atomic\Fn
|
|
) {
|
|
$closure_return_type = $closure_atomic_type->return_type ?: Type::getMixed();
|
|
|
|
if ($closure_return_type->isVoid()) {
|
|
IssueBuffer::accepts(
|
|
new InvalidReturnType(
|
|
'No return type could be found in the closure passed to array_filter',
|
|
$code_location
|
|
),
|
|
$suppressed_issues
|
|
);
|
|
|
|
return Type::getArray();
|
|
}
|
|
|
|
if (count($function_call_arg->value->stmts) === 1 && count($function_call_arg->value->params)) {
|
|
$first_param = $function_call_arg->value->params[0];
|
|
$stmt = $function_call_arg->value->stmts[0];
|
|
|
|
if ($first_param->variadic === false
|
|
&& $first_param->var instanceof PhpParser\Node\Expr\Variable
|
|
&& is_string($first_param->var->name)
|
|
&& $stmt instanceof PhpParser\Node\Stmt\Return_
|
|
&& $stmt->expr
|
|
) {
|
|
AssertionFinder::scrapeAssertions($stmt->expr, null, $statements_checker);
|
|
|
|
$assertions = isset($stmt->expr->assertions) ? $stmt->expr->assertions : null;
|
|
|
|
if (isset($assertions['$' . $first_param->var->name])) {
|
|
$changed_var_ids = [];
|
|
|
|
$reconciled_types = Reconciler::reconcileKeyedTypes(
|
|
['$inner_type' => $assertions['$' . $first_param->var->name]],
|
|
['$inner_type' => $inner_type],
|
|
$changed_var_ids,
|
|
['$inner_type' => true],
|
|
$statements_checker,
|
|
new CodeLocation($statements_checker->getSource(), $stmt),
|
|
$statements_checker->getSuppressedIssues()
|
|
);
|
|
|
|
if (isset($reconciled_types['$inner_type'])) {
|
|
$inner_type = $reconciled_types['$inner_type'];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return new Type\Union([
|
|
new Type\Atomic\TArray([
|
|
$key_type,
|
|
$inner_type,
|
|
]),
|
|
]);
|
|
}
|
|
|
|
return new Type\Union([
|
|
new Type\Atomic\TArray([
|
|
$key_type,
|
|
$inner_type,
|
|
]),
|
|
]);
|
|
}
|
|
}
|