2018-01-29 00:29:38 +01:00
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<?php
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2018-11-06 03:57:36 +01:00
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namespace Psalm\Internal\Analyzer\Statements\Expression\Call;
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2018-01-29 00:29:38 +01:00
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use PhpParser;
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2018-11-06 03:57:36 +01:00
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use Psalm\Internal\Analyzer\FunctionAnalyzer;
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use Psalm\Internal\Analyzer\Statements\ExpressionAnalyzer;
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2019-02-26 07:03:33 +01:00
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use Psalm\Internal\Analyzer\Statements\Expression\AssertionFinder;
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2018-11-06 03:57:36 +01:00
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use Psalm\Internal\Analyzer\StatementsAnalyzer;
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2020-01-24 20:53:32 +01:00
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use Psalm\Internal\Analyzer\TypeAnalyzer;
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2018-11-12 16:46:55 +01:00
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use Psalm\Internal\Codebase\CallMap;
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2018-01-29 00:29:38 +01:00
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use Psalm\CodeLocation;
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use Psalm\Context;
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2018-11-12 16:46:55 +01:00
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use Psalm\Internal\FileManipulation\FileManipulationBuffer;
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2019-06-15 18:09:15 +02:00
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use Psalm\Issue\DeprecatedFunction;
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2018-01-29 00:29:38 +01:00
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use Psalm\Issue\ForbiddenCode;
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2019-02-10 22:15:52 +01:00
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use Psalm\Issue\MixedFunctionCall;
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2018-01-29 00:29:38 +01:00
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use Psalm\Issue\InvalidFunctionCall;
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2019-07-18 07:31:48 +02:00
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use Psalm\Issue\ImpureFunctionCall;
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2018-01-29 00:29:38 +01:00
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use Psalm\Issue\NullFunctionCall;
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use Psalm\Issue\PossiblyInvalidFunctionCall;
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use Psalm\Issue\PossiblyNullFunctionCall;
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2019-08-13 19:15:23 +02:00
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use Psalm\Issue\UnusedFunctionCall;
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2018-01-29 00:29:38 +01:00
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use Psalm\IssueBuffer;
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2019-01-23 05:42:54 +01:00
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use Psalm\Storage\Assertion;
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2018-01-29 00:29:38 +01:00
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use Psalm\Type;
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2019-01-04 14:04:19 +01:00
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use Psalm\Type\Atomic\TCallableObject;
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use Psalm\Type\Atomic\TCallableString;
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2019-02-22 03:40:06 +01:00
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use Psalm\Type\Atomic\TTemplateParam;
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2018-01-29 00:29:38 +01:00
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use Psalm\Type\Atomic\TMixed;
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use Psalm\Type\Atomic\TNamedObject;
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use Psalm\Type\Atomic\TNull;
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2018-02-12 02:56:34 +01:00
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use Psalm\Type\Atomic\TString;
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2018-05-07 07:26:06 +02:00
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use Psalm\Type\Algebra;
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2018-01-29 00:29:38 +01:00
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use Psalm\Type\Reconciler;
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2019-06-26 22:52:29 +02:00
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use function count;
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2019-09-29 22:04:32 +02:00
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use function in_array;
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2019-06-26 22:52:29 +02:00
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use function reset;
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use function implode;
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use function strtolower;
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use function array_merge;
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use function is_string;
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use function array_map;
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use function extension_loaded;
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use function strpos;
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2019-11-04 03:27:40 +01:00
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use Psalm\Internal\Type\TemplateResult;
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2019-12-21 01:34:20 +01:00
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use Psalm\Storage\FunctionLikeParameter;
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2018-01-29 00:29:38 +01:00
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2018-12-02 00:37:49 +01:00
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/**
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* @internal
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*/
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2018-11-06 03:57:36 +01:00
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class FunctionCallAnalyzer extends \Psalm\Internal\Analyzer\Statements\Expression\CallAnalyzer
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2018-01-29 00:29:38 +01:00
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{
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/**
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2018-11-11 18:01:14 +01:00
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* @param StatementsAnalyzer $statements_analyzer
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2018-01-29 00:29:38 +01:00
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* @param PhpParser\Node\Expr\FuncCall $stmt
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* @param Context $context
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*
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* @return false|null
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*/
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public static function analyze(
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2018-11-11 18:01:14 +01:00
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StatementsAnalyzer $statements_analyzer,
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2018-01-29 00:29:38 +01:00
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PhpParser\Node\Expr\FuncCall $stmt,
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Context $context
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) {
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2018-02-21 17:32:52 +01:00
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$function = $stmt->name;
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2018-01-29 00:29:38 +01:00
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2018-02-21 17:32:52 +01:00
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$function_id = null;
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2018-01-29 00:29:38 +01:00
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$function_params = null;
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$in_call_map = false;
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$is_stubbed = false;
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$function_storage = null;
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2018-11-11 18:01:14 +01:00
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$codebase = $statements_analyzer->getCodebase();
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2018-11-06 03:57:36 +01:00
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2018-11-11 18:01:14 +01:00
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$code_location = new CodeLocation($statements_analyzer->getSource(), $stmt);
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2018-02-04 00:52:35 +01:00
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$codebase_functions = $codebase->functions;
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2018-01-29 00:29:38 +01:00
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$config = $codebase->config;
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$defined_constants = [];
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2018-05-31 04:09:46 +02:00
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$global_variables = [];
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2018-01-29 00:29:38 +01:00
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$function_exists = false;
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2020-01-24 19:34:50 +01:00
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$real_stmt = $stmt;
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if ($stmt->name instanceof PhpParser\Node\Name
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&& isset($stmt->args[0])
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&& !$stmt->args[0]->unpack
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) {
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$original_function_id = implode('\\', $stmt->name->parts);
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if ($original_function_id === 'call_user_func') {
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2020-01-24 20:08:01 +01:00
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$other_args = \array_slice($stmt->args, 1);
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2020-01-24 19:34:50 +01:00
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$stmt = new PhpParser\Node\Expr\FuncCall(
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$stmt->args[0]->value,
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$other_args,
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$stmt->getAttributes()
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);
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}
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if ($original_function_id === 'call_user_func_array' && isset($stmt->args[1])) {
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$stmt = new PhpParser\Node\Expr\FuncCall(
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$stmt->args[0]->value,
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[new PhpParser\Node\Arg($stmt->args[1]->value, false, true)],
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$stmt->getAttributes()
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);
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}
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}
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2018-01-29 00:29:38 +01:00
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if ($stmt->name instanceof PhpParser\Node\Expr) {
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2019-08-23 04:06:22 +02:00
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$was_in_call = $context->inside_call;
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$context->inside_call = true;
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2018-11-11 18:01:14 +01:00
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if (ExpressionAnalyzer::analyze($statements_analyzer, $stmt->name, $context) === false) {
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2020-01-02 16:41:43 +01:00
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$context->inside_call = $was_in_call;
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2019-08-23 05:26:04 +02:00
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2019-06-16 00:15:04 +02:00
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return;
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2018-01-29 00:29:38 +01:00
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}
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2020-01-02 16:41:43 +01:00
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$context->inside_call = $was_in_call;
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2019-08-23 04:06:22 +02:00
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2019-11-25 17:44:54 +01:00
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if ($stmt_name_type = $statements_analyzer->node_data->getType($stmt->name)) {
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if ($stmt_name_type->isNull()) {
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2018-01-29 00:29:38 +01:00
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if (IssueBuffer::accepts(
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new NullFunctionCall(
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'Cannot call function on null value',
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2018-11-11 18:01:14 +01:00
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new CodeLocation($statements_analyzer->getSource(), $stmt)
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2018-01-29 00:29:38 +01:00
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),
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2018-11-11 18:01:14 +01:00
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$statements_analyzer->getSuppressedIssues()
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2018-01-29 00:29:38 +01:00
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)) {
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return false;
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}
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return;
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}
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2019-11-25 17:44:54 +01:00
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if ($stmt_name_type->isNullable()) {
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2018-01-29 00:29:38 +01:00
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if (IssueBuffer::accepts(
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new PossiblyNullFunctionCall(
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'Cannot call function on possibly null value',
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2018-11-11 18:01:14 +01:00
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new CodeLocation($statements_analyzer->getSource(), $stmt)
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2018-01-29 00:29:38 +01:00
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),
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2018-11-11 18:01:14 +01:00
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$statements_analyzer->getSuppressedIssues()
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2018-01-29 00:29:38 +01:00
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)) {
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// fall through
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}
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}
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$invalid_function_call_types = [];
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$has_valid_function_call_type = false;
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2020-01-04 18:20:26 +01:00
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foreach ($stmt_name_type->getAtomicTypes() as $var_type_part) {
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2019-06-03 12:19:52 +02:00
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if ($var_type_part instanceof Type\Atomic\TFn || $var_type_part instanceof Type\Atomic\TCallable) {
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2018-01-29 00:29:38 +01:00
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$function_params = $var_type_part->params;
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2020-01-24 19:34:50 +01:00
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if (($stmt_type = $statements_analyzer->node_data->getType($real_stmt))
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2019-11-25 17:44:54 +01:00
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&& $var_type_part->return_type
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) {
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$statements_analyzer->node_data->setType(
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2020-01-24 19:34:50 +01:00
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$real_stmt,
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2019-11-25 17:44:54 +01:00
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Type::combineUnionTypes(
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$stmt_type,
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$var_type_part->return_type
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)
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2018-01-29 00:29:38 +01:00
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);
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} else {
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2019-11-25 17:44:54 +01:00
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$statements_analyzer->node_data->setType(
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2020-01-24 19:34:50 +01:00
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$real_stmt,
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2019-11-25 17:44:54 +01:00
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$var_type_part->return_type ?: Type::getMixed()
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);
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2018-01-29 00:29:38 +01:00
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}
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$function_exists = true;
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$has_valid_function_call_type = true;
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2019-12-14 16:47:20 +01:00
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} elseif ($var_type_part instanceof TTemplateParam && $var_type_part->as->hasCallableType()) {
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$has_valid_function_call_type = true;
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2019-02-22 03:40:06 +01:00
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} elseif ($var_type_part instanceof TMixed || $var_type_part instanceof TTemplateParam) {
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2018-01-29 00:29:38 +01:00
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$has_valid_function_call_type = true;
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2019-02-10 22:15:52 +01:00
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if (IssueBuffer::accepts(
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new MixedFunctionCall(
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2019-12-14 16:47:20 +01:00
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'Cannot call function on ' . $var_type_part->getId(),
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2019-02-10 22:15:52 +01:00
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new CodeLocation($statements_analyzer->getSource(), $stmt)
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),
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$statements_analyzer->getSuppressedIssues()
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)) {
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// fall through
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}
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2019-01-04 14:04:19 +01:00
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} elseif ($var_type_part instanceof TCallableObject
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|| $var_type_part instanceof TCallableString
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) {
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// this is fine
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$has_valid_function_call_type = true;
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2018-03-27 07:05:11 +02:00
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} elseif (($var_type_part instanceof TNamedObject && $var_type_part->value === 'Closure')) {
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2018-02-12 02:56:34 +01:00
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// this is fine
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$has_valid_function_call_type = true;
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2018-03-02 06:49:53 +01:00
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} elseif ($var_type_part instanceof TString
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2018-03-02 14:38:16 +01:00
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|| $var_type_part instanceof Type\Atomic\TArray
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2020-01-24 21:09:06 +01:00
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|| $var_type_part instanceof Type\Atomic\TList
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2018-03-02 06:49:53 +01:00
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|| ($var_type_part instanceof Type\Atomic\ObjectLike
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&& count($var_type_part->properties) === 2)
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) {
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2020-01-24 20:53:32 +01:00
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$potential_method_id = null;
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if ($var_type_part instanceof Type\Atomic\ObjectLike) {
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$potential_method_id = TypeAnalyzer::getCallableMethodIdFromObjectLike(
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$var_type_part,
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$codebase,
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$context->calling_function_id,
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$statements_analyzer->getFilePath()
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);
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if ($potential_method_id === 'not-callable') {
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$potential_method_id = null;
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}
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} elseif ($var_type_part instanceof Type\Atomic\TLiteralString) {
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2020-01-24 21:44:18 +01:00
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$potential_method_id = $var_type_part->value;
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2020-01-24 20:53:32 +01:00
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}
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if ($potential_method_id && strpos($potential_method_id, '::')) {
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$codebase->methods->methodExists(
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$potential_method_id,
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$context->calling_function_id,
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null,
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$statements_analyzer,
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$statements_analyzer->getFilePath()
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);
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}
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2018-02-12 02:56:34 +01:00
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// this is also kind of fine
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2018-01-29 00:29:38 +01:00
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$has_valid_function_call_type = true;
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} elseif ($var_type_part instanceof TNull) {
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// handled above
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2018-02-01 06:50:01 +01:00
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} elseif (!$var_type_part instanceof TNamedObject
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2018-02-04 00:52:35 +01:00
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|| !$codebase->classlikes->classOrInterfaceExists($var_type_part->value)
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|| !$codebase->methods->methodExists($var_type_part->value . '::__invoke')
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2018-01-29 00:29:38 +01:00
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) {
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$invalid_function_call_types[] = (string)$var_type_part;
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2018-04-01 00:57:13 +02:00
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} else {
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2019-11-25 17:44:54 +01:00
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$old_data_provider = $statements_analyzer->node_data;
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$statements_analyzer->node_data = clone $statements_analyzer->node_data;
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2019-09-29 22:01:33 +02:00
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$fake_method_call = new PhpParser\Node\Expr\MethodCall(
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$stmt->name,
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new PhpParser\Node\Identifier('__invoke', $stmt->name->getAttributes()),
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$stmt->args
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);
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$suppressed_issues = $statements_analyzer->getSuppressedIssues();
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if (!in_array('PossiblyNullReference', $suppressed_issues, true)) {
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$statements_analyzer->addSuppressedIssues(['PossiblyNullReference']);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!in_array('InternalMethod', $suppressed_issues, true)) {
|
|
|
|
|
$statements_analyzer->addSuppressedIssues(['InternalMethod']);
|
2018-04-01 00:57:13 +02:00
|
|
|
|
}
|
2018-05-09 01:49:25 +02:00
|
|
|
|
|
2019-09-29 22:01:33 +02:00
|
|
|
|
\Psalm\Internal\Analyzer\Statements\Expression\Call\MethodCallAnalyzer::analyze(
|
|
|
|
|
$statements_analyzer,
|
|
|
|
|
$fake_method_call,
|
|
|
|
|
$context,
|
|
|
|
|
false
|
2018-05-09 01:49:25 +02:00
|
|
|
|
);
|
|
|
|
|
|
2019-09-29 22:01:33 +02:00
|
|
|
|
if (!in_array('PossiblyNullReference', $suppressed_issues, true)) {
|
|
|
|
|
$statements_analyzer->removeSuppressedIssues(['PossiblyNullReference']);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!in_array('InternalMethod', $suppressed_issues, true)) {
|
|
|
|
|
$statements_analyzer->removeSuppressedIssues(['InternalMethod']);
|
|
|
|
|
}
|
|
|
|
|
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$fake_method_call_type = $statements_analyzer->node_data->getType($fake_method_call);
|
|
|
|
|
|
|
|
|
|
$statements_analyzer->node_data = $old_data_provider;
|
|
|
|
|
|
2020-01-24 19:34:50 +01:00
|
|
|
|
if ($stmt_type = $statements_analyzer->node_data->getType($real_stmt)) {
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$statements_analyzer->node_data->setType(
|
2020-01-24 19:34:50 +01:00
|
|
|
|
$real_stmt,
|
2019-11-25 17:44:54 +01:00
|
|
|
|
Type::combineUnionTypes(
|
|
|
|
|
$fake_method_call_type ?: Type::getMixed(),
|
|
|
|
|
$stmt_type
|
|
|
|
|
)
|
2018-05-09 01:49:25 +02:00
|
|
|
|
);
|
|
|
|
|
} else {
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$statements_analyzer->node_data->setType(
|
2020-01-24 19:34:50 +01:00
|
|
|
|
$real_stmt,
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$fake_method_call_type ?: Type::getMixed()
|
|
|
|
|
);
|
2018-05-09 01:49:25 +02:00
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ($invalid_function_call_types) {
|
|
|
|
|
$var_type_part = reset($invalid_function_call_types);
|
|
|
|
|
|
|
|
|
|
if ($has_valid_function_call_type) {
|
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
|
new PossiblyInvalidFunctionCall(
|
|
|
|
|
'Cannot treat type ' . $var_type_part . ' as callable',
|
2018-11-11 18:01:14 +01:00
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
2018-01-29 00:29:38 +01:00
|
|
|
|
),
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
2018-01-29 00:29:38 +01:00
|
|
|
|
)) {
|
2019-06-16 00:15:04 +02:00
|
|
|
|
return;
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
|
new InvalidFunctionCall(
|
|
|
|
|
'Cannot treat type ' . $var_type_part . ' as callable',
|
2018-11-11 18:01:14 +01:00
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
2018-01-29 00:29:38 +01:00
|
|
|
|
),
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
2018-01-29 00:29:38 +01:00
|
|
|
|
)) {
|
2019-06-16 00:15:04 +02:00
|
|
|
|
return;
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2020-01-24 19:34:50 +01:00
|
|
|
|
if (!$statements_analyzer->node_data->getType($real_stmt)) {
|
|
|
|
|
$statements_analyzer->node_data->setType($real_stmt, Type::getMixed());
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
} else {
|
2019-01-05 20:50:11 +01:00
|
|
|
|
$original_function_id = implode('\\', $stmt->name->parts);
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2019-01-05 20:50:11 +01:00
|
|
|
|
if (!$stmt->name instanceof PhpParser\Node\Name\FullyQualified) {
|
|
|
|
|
$function_id = $codebase_functions->getFullyQualifiedFunctionNameFromString(
|
|
|
|
|
$original_function_id,
|
|
|
|
|
$statements_analyzer
|
|
|
|
|
);
|
|
|
|
|
} else {
|
|
|
|
|
$function_id = $original_function_id;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$namespaced_function_exists = $codebase_functions->functionExists(
|
|
|
|
|
$statements_analyzer,
|
|
|
|
|
strtolower($function_id)
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
if (!$namespaced_function_exists
|
|
|
|
|
&& !$stmt->name instanceof PhpParser\Node\Name\FullyQualified
|
|
|
|
|
) {
|
|
|
|
|
$in_call_map = CallMap::inCallMap($original_function_id);
|
|
|
|
|
$is_stubbed = $codebase_functions->hasStubbedFunction($original_function_id);
|
|
|
|
|
|
|
|
|
|
if ($is_stubbed || $in_call_map) {
|
|
|
|
|
$function_id = $original_function_id;
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
$in_call_map = CallMap::inCallMap($function_id);
|
|
|
|
|
$is_stubbed = $codebase_functions->hasStubbedFunction($function_id);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ($is_stubbed || $in_call_map || $namespaced_function_exists) {
|
|
|
|
|
$function_exists = true;
|
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2019-07-19 03:50:59 +02:00
|
|
|
|
if ($function_exists
|
2019-10-20 05:03:59 +02:00
|
|
|
|
&& $codebase->store_node_types
|
2019-07-19 03:50:59 +02:00
|
|
|
|
&& !$context->collect_initializations
|
|
|
|
|
&& !$context->collect_mutations
|
|
|
|
|
) {
|
|
|
|
|
ArgumentMapPopulator::recordArgumentPositions(
|
|
|
|
|
$statements_analyzer,
|
|
|
|
|
$stmt,
|
|
|
|
|
$codebase,
|
|
|
|
|
$function_id
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
|
2018-01-29 00:29:38 +01:00
|
|
|
|
$is_predefined = true;
|
|
|
|
|
|
2018-02-25 17:13:00 +01:00
|
|
|
|
$is_maybe_root_function = !$stmt->name instanceof PhpParser\Node\Name\FullyQualified
|
|
|
|
|
&& count($stmt->name->parts) === 1;
|
|
|
|
|
|
2018-01-29 00:29:38 +01:00
|
|
|
|
if (!$in_call_map) {
|
|
|
|
|
$predefined_functions = $config->getPredefinedFunctions();
|
2019-01-05 20:50:11 +01:00
|
|
|
|
$is_predefined = isset($predefined_functions[strtolower($original_function_id)])
|
|
|
|
|
|| isset($predefined_functions[strtolower($function_id)]);
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
|
|
|
|
if ($context->check_functions) {
|
|
|
|
|
if (self::checkFunctionExists(
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer,
|
2018-02-21 17:32:52 +01:00
|
|
|
|
$function_id,
|
2018-02-25 17:13:00 +01:00
|
|
|
|
$code_location,
|
|
|
|
|
$is_maybe_root_function
|
2018-01-29 00:29:38 +01:00
|
|
|
|
) === false
|
|
|
|
|
) {
|
2019-12-18 17:37:48 +01:00
|
|
|
|
if (self::checkFunctionArguments(
|
|
|
|
|
$statements_analyzer,
|
|
|
|
|
$stmt->args,
|
|
|
|
|
null,
|
|
|
|
|
null,
|
|
|
|
|
$context
|
|
|
|
|
) === false) {
|
|
|
|
|
// fall through
|
|
|
|
|
}
|
|
|
|
|
|
2019-06-15 22:14:36 +02:00
|
|
|
|
return;
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
$function_exists = true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ($function_exists) {
|
2019-03-01 14:57:10 +01:00
|
|
|
|
$function_params = null;
|
|
|
|
|
|
|
|
|
|
if ($codebase->functions->params_provider->has($function_id)) {
|
|
|
|
|
$function_params = $codebase->functions->params_provider->getFunctionParams(
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer,
|
2019-03-01 14:57:10 +01:00
|
|
|
|
$function_id,
|
|
|
|
|
$stmt->args
|
2018-01-29 00:29:38 +01:00
|
|
|
|
);
|
2019-03-01 14:57:10 +01:00
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2019-03-01 14:57:10 +01:00
|
|
|
|
if ($function_params === null) {
|
|
|
|
|
if (!$in_call_map || $is_stubbed) {
|
2019-12-21 01:34:20 +01:00
|
|
|
|
try {
|
|
|
|
|
$function_storage = $codebase_functions->getStorage(
|
|
|
|
|
$statements_analyzer,
|
|
|
|
|
strtolower($function_id)
|
|
|
|
|
);
|
2019-03-01 14:57:10 +01:00
|
|
|
|
|
2019-12-21 01:34:20 +01:00
|
|
|
|
$function_params = $function_storage->params;
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2019-12-21 01:34:20 +01:00
|
|
|
|
if (!$is_predefined) {
|
|
|
|
|
$defined_constants = $function_storage->defined_constants;
|
|
|
|
|
$global_variables = $function_storage->global_variables;
|
|
|
|
|
}
|
|
|
|
|
} catch (\UnexpectedValueException $e) {
|
|
|
|
|
$function_params = [
|
|
|
|
|
new FunctionLikeParameter('args', false, null, null, null, false, false, true)
|
|
|
|
|
];
|
2019-03-01 14:57:10 +01:00
|
|
|
|
}
|
2019-12-21 01:34:20 +01:00
|
|
|
|
} else {
|
2019-06-15 22:10:48 +02:00
|
|
|
|
$function_callable = \Psalm\Internal\Codebase\CallMap::getCallableFromCallMapById(
|
2019-03-01 14:57:10 +01:00
|
|
|
|
$codebase,
|
|
|
|
|
$function_id,
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$stmt->args,
|
|
|
|
|
$statements_analyzer->node_data
|
2019-03-01 14:57:10 +01:00
|
|
|
|
);
|
2019-06-15 22:10:48 +02:00
|
|
|
|
|
|
|
|
|
$function_params = $function_callable->params;
|
2019-03-01 14:57:10 +01:00
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
2018-10-26 22:17:15 +02:00
|
|
|
|
|
2019-07-01 15:55:39 +02:00
|
|
|
|
if ($codebase->store_node_types
|
|
|
|
|
&& !$context->collect_initializations
|
|
|
|
|
&& !$context->collect_mutations
|
|
|
|
|
) {
|
2018-10-26 22:17:15 +02:00
|
|
|
|
$codebase->analyzer->addNodeReference(
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer->getFilePath(),
|
2018-10-26 22:17:15 +02:00
|
|
|
|
$stmt->name,
|
|
|
|
|
$function_id . '()'
|
|
|
|
|
);
|
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2019-03-11 04:38:30 +01:00
|
|
|
|
$set_inside_conditional = false;
|
|
|
|
|
|
|
|
|
|
if ($function instanceof PhpParser\Node\Name
|
|
|
|
|
&& $function->parts === ['assert']
|
|
|
|
|
&& !$context->inside_conditional
|
|
|
|
|
) {
|
|
|
|
|
$context->inside_conditional = true;
|
|
|
|
|
$set_inside_conditional = true;
|
|
|
|
|
}
|
|
|
|
|
|
2018-01-29 00:29:38 +01:00
|
|
|
|
if (self::checkFunctionArguments(
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer,
|
2018-01-29 00:29:38 +01:00
|
|
|
|
$stmt->args,
|
|
|
|
|
$function_params,
|
2018-02-21 17:32:52 +01:00
|
|
|
|
$function_id,
|
2018-01-29 00:29:38 +01:00
|
|
|
|
$context
|
|
|
|
|
) === false) {
|
|
|
|
|
// fall through
|
|
|
|
|
}
|
|
|
|
|
|
2019-03-11 04:38:30 +01:00
|
|
|
|
if ($set_inside_conditional) {
|
|
|
|
|
$context->inside_conditional = false;
|
|
|
|
|
}
|
|
|
|
|
|
2019-11-04 03:27:40 +01:00
|
|
|
|
$template_result = null;
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2018-11-16 00:50:08 +01:00
|
|
|
|
if ($function_exists) {
|
2018-02-21 17:32:52 +01:00
|
|
|
|
if ($stmt->name instanceof PhpParser\Node\Name && $function_id) {
|
2018-01-29 00:29:38 +01:00
|
|
|
|
if (!$is_stubbed && $in_call_map) {
|
2019-06-15 22:10:48 +02:00
|
|
|
|
$function_callable = \Psalm\Internal\Codebase\CallMap::getCallableFromCallMapById(
|
2018-11-11 18:19:53 +01:00
|
|
|
|
$codebase,
|
2018-02-21 17:32:52 +01:00
|
|
|
|
$function_id,
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$stmt->args,
|
|
|
|
|
$statements_analyzer->node_data
|
2018-01-29 00:29:38 +01:00
|
|
|
|
);
|
2019-06-15 22:10:48 +02:00
|
|
|
|
|
|
|
|
|
$function_params = $function_callable->params;
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2019-11-04 03:27:40 +01:00
|
|
|
|
$template_result = new TemplateResult([], []);
|
|
|
|
|
|
2018-01-29 00:29:38 +01:00
|
|
|
|
// do this here to allow closure param checks
|
2018-04-10 00:49:11 +02:00
|
|
|
|
if ($function_params !== null
|
|
|
|
|
&& self::checkFunctionLikeArgumentsMatch(
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer,
|
2018-04-10 03:50:38 +02:00
|
|
|
|
$stmt->args,
|
|
|
|
|
$function_id,
|
|
|
|
|
$function_params,
|
|
|
|
|
$function_storage,
|
|
|
|
|
null,
|
2019-11-04 03:27:40 +01:00
|
|
|
|
$template_result,
|
2018-04-10 03:50:38 +02:00
|
|
|
|
$code_location,
|
|
|
|
|
$context
|
|
|
|
|
) === false) {
|
2018-01-29 00:29:38 +01:00
|
|
|
|
// fall through
|
|
|
|
|
}
|
|
|
|
|
|
2018-02-21 17:32:52 +01:00
|
|
|
|
if ($stmt->name instanceof PhpParser\Node\Name && $function_id) {
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$stmt_type = null;
|
|
|
|
|
|
2019-02-27 23:06:44 +01:00
|
|
|
|
|
2019-02-16 00:00:40 +01:00
|
|
|
|
if ($codebase->functions->return_type_provider->has($function_id)) {
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$stmt_type = $codebase->functions->return_type_provider->getReturnType(
|
2019-02-16 00:00:40 +01:00
|
|
|
|
$statements_analyzer,
|
|
|
|
|
$function_id,
|
|
|
|
|
$stmt->args,
|
|
|
|
|
$context,
|
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt->name)
|
|
|
|
|
);
|
2019-02-27 23:06:44 +01:00
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2019-11-25 17:44:54 +01:00
|
|
|
|
if (!$stmt_type) {
|
2019-02-27 23:06:44 +01:00
|
|
|
|
if (!$in_call_map || $is_stubbed) {
|
|
|
|
|
if ($function_storage && $function_storage->template_types) {
|
|
|
|
|
foreach ($function_storage->template_types as $template_name => $_) {
|
2019-11-04 03:27:40 +01:00
|
|
|
|
if (!isset($template_result->generic_params[$template_name])) {
|
2019-12-29 00:37:55 +01:00
|
|
|
|
$template_result->generic_params[$template_name] = [
|
|
|
|
|
'fn-' . $function_id => [Type::getEmpty(), 0]
|
|
|
|
|
];
|
2019-02-27 23:06:44 +01:00
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
2019-02-27 23:06:44 +01:00
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2019-03-29 00:50:29 +01:00
|
|
|
|
if ($function_storage && !$context->isSuppressingExceptions($statements_analyzer)) {
|
2019-03-29 00:43:14 +01:00
|
|
|
|
$context->mergeFunctionExceptions(
|
|
|
|
|
$function_storage,
|
2019-03-24 21:08:05 +01:00
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
|
|
|
|
);
|
2019-02-27 23:06:44 +01:00
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2019-02-27 23:06:44 +01:00
|
|
|
|
try {
|
|
|
|
|
if ($function_storage && $function_storage->return_type) {
|
|
|
|
|
$return_type = clone $function_storage->return_type;
|
2018-06-01 03:59:55 +02:00
|
|
|
|
|
2019-11-04 03:27:40 +01:00
|
|
|
|
if ($template_result->generic_params && $function_storage->template_types) {
|
2019-02-27 23:06:44 +01:00
|
|
|
|
$return_type->replaceTemplateTypesWithArgTypes(
|
2019-11-04 03:27:40 +01:00
|
|
|
|
$template_result->generic_params
|
2018-06-01 03:59:55 +02:00
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
|
2019-02-27 23:06:44 +01:00
|
|
|
|
$return_type_location = $function_storage->return_type_location;
|
|
|
|
|
|
|
|
|
|
if ($config->after_function_checks) {
|
|
|
|
|
$file_manipulations = [];
|
|
|
|
|
|
|
|
|
|
foreach ($config->after_function_checks as $plugin_fq_class_name) {
|
|
|
|
|
$plugin_fq_class_name::afterFunctionCallAnalysis(
|
|
|
|
|
$stmt,
|
|
|
|
|
$function_id,
|
|
|
|
|
$context,
|
|
|
|
|
$statements_analyzer->getSource(),
|
|
|
|
|
$codebase,
|
|
|
|
|
$file_manipulations,
|
|
|
|
|
$return_type
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ($file_manipulations) {
|
|
|
|
|
FileManipulationBuffer::add(
|
|
|
|
|
$statements_analyzer->getFilePath(),
|
|
|
|
|
$file_manipulations
|
|
|
|
|
);
|
|
|
|
|
}
|
2018-06-01 03:59:55 +02:00
|
|
|
|
}
|
|
|
|
|
|
2019-11-25 17:44:54 +01:00
|
|
|
|
if ($return_type === null) {
|
|
|
|
|
throw new \UnexpectedValueException('$return_type shouldn’t be null here');
|
|
|
|
|
}
|
|
|
|
|
|
2020-01-24 19:34:50 +01:00
|
|
|
|
$statements_analyzer->node_data->setType($real_stmt, $return_type);
|
2019-02-27 23:06:44 +01:00
|
|
|
|
$return_type->by_ref = $function_storage->returns_by_ref;
|
|
|
|
|
|
|
|
|
|
// only check the type locally if it's defined externally
|
|
|
|
|
if ($return_type_location &&
|
|
|
|
|
!$is_stubbed && // makes lookups or array_* functions quicker
|
|
|
|
|
!$config->isInProjectDirs($return_type_location->file_path)
|
|
|
|
|
) {
|
|
|
|
|
$return_type->check(
|
|
|
|
|
$statements_analyzer,
|
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt),
|
|
|
|
|
$statements_analyzer->getSuppressedIssues(),
|
|
|
|
|
$context->phantom_classes
|
|
|
|
|
);
|
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
2019-02-27 23:06:44 +01:00
|
|
|
|
} catch (\InvalidArgumentException $e) {
|
|
|
|
|
// this can happen when the function was defined in the Config startup script
|
2020-01-24 19:34:50 +01:00
|
|
|
|
$statements_analyzer->node_data->setType($real_stmt, Type::getMixed());
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
2019-02-27 23:06:44 +01:00
|
|
|
|
} else {
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$stmt_type = FunctionAnalyzer::getReturnTypeFromCallMapWithArgs(
|
2019-02-27 23:06:44 +01:00
|
|
|
|
$statements_analyzer,
|
|
|
|
|
$function_id,
|
|
|
|
|
$stmt->args,
|
|
|
|
|
$context
|
|
|
|
|
);
|
2019-08-13 05:16:05 +02:00
|
|
|
|
|
|
|
|
|
if ($codebase->taint) {
|
|
|
|
|
FunctionAnalyzer::taintBuiltinFunctionReturn(
|
|
|
|
|
$statements_analyzer,
|
|
|
|
|
$function_id,
|
|
|
|
|
$stmt->args,
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$stmt_type
|
2019-08-13 05:16:05 +02:00
|
|
|
|
);
|
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
2019-11-25 17:44:54 +01:00
|
|
|
|
|
|
|
|
|
if ($stmt_type) {
|
2020-01-24 19:34:50 +01:00
|
|
|
|
$statements_analyzer->node_data->setType($real_stmt, $stmt_type);
|
2019-11-25 17:44:54 +01:00
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
foreach ($defined_constants as $const_name => $const_type) {
|
|
|
|
|
$context->constants[$const_name] = clone $const_type;
|
|
|
|
|
$context->vars_in_scope[$const_name] = clone $const_type;
|
|
|
|
|
}
|
|
|
|
|
|
2018-05-31 04:09:46 +02:00
|
|
|
|
foreach ($global_variables as $var_id => $_) {
|
2018-06-01 03:59:55 +02:00
|
|
|
|
$context->vars_in_scope[$var_id] = Type::getMixed();
|
2018-05-31 04:09:46 +02:00
|
|
|
|
$context->vars_possibly_in_scope[$var_id] = true;
|
|
|
|
|
}
|
|
|
|
|
|
2018-01-29 00:29:38 +01:00
|
|
|
|
if ($config->use_assert_for_type &&
|
2018-02-21 17:32:52 +01:00
|
|
|
|
$function instanceof PhpParser\Node\Name &&
|
|
|
|
|
$function->parts === ['assert'] &&
|
2018-01-29 00:29:38 +01:00
|
|
|
|
isset($stmt->args[0])
|
|
|
|
|
) {
|
2018-05-07 07:26:06 +02:00
|
|
|
|
$assert_clauses = \Psalm\Type\Algebra::getFormula(
|
2019-12-08 22:35:56 +01:00
|
|
|
|
\spl_object_id($stmt->args[0]->value),
|
2018-01-29 00:29:38 +01:00
|
|
|
|
$stmt->args[0]->value,
|
2019-12-28 21:56:19 +01:00
|
|
|
|
$context->self,
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer,
|
2018-11-06 03:57:36 +01:00
|
|
|
|
$codebase
|
2018-01-29 00:29:38 +01:00
|
|
|
|
);
|
|
|
|
|
|
2018-05-07 07:26:06 +02:00
|
|
|
|
$simplified_clauses = Algebra::simplifyCNF(array_merge($context->clauses, $assert_clauses));
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2018-05-07 07:26:06 +02:00
|
|
|
|
$assert_type_assertions = Algebra::getTruthsFromFormula($simplified_clauses);
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2018-12-17 21:23:56 +01:00
|
|
|
|
if ($assert_type_assertions) {
|
2019-12-07 07:23:35 +01:00
|
|
|
|
$changed_var_ids = [];
|
2018-12-17 21:23:56 +01:00
|
|
|
|
|
|
|
|
|
// while in an and, we allow scope to boil over to support
|
|
|
|
|
// statements of the form if ($x && $x->foo())
|
|
|
|
|
$op_vars_in_scope = Reconciler::reconcileKeyedTypes(
|
2019-12-08 22:35:56 +01:00
|
|
|
|
$assert_type_assertions,
|
2018-12-17 21:23:56 +01:00
|
|
|
|
$assert_type_assertions,
|
|
|
|
|
$context->vars_in_scope,
|
2019-12-07 07:23:35 +01:00
|
|
|
|
$changed_var_ids,
|
2018-12-17 21:23:56 +01:00
|
|
|
|
[],
|
|
|
|
|
$statements_analyzer,
|
2019-12-29 17:57:48 +01:00
|
|
|
|
$statements_analyzer->getTemplateTypeMap() ?: [],
|
2018-12-17 21:23:56 +01:00
|
|
|
|
$context->inside_loop,
|
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
|
|
|
|
);
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2019-12-07 07:23:35 +01:00
|
|
|
|
foreach ($changed_var_ids as $var_id => $_) {
|
2020-02-09 05:01:45 +01:00
|
|
|
|
if ($first_appearance = $statements_analyzer->getFirstAppearance($var_id)) {
|
|
|
|
|
IssueBuffer::remove(
|
|
|
|
|
$statements_analyzer->getFilePath(),
|
|
|
|
|
'MixedAssignment',
|
|
|
|
|
$first_appearance->raw_file_start
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
|
2019-12-07 07:23:35 +01:00
|
|
|
|
if (isset($op_vars_in_scope[$var_id])) {
|
|
|
|
|
$op_vars_in_scope[$var_id]->from_docblock = true;
|
2018-12-17 21:23:56 +01:00
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
|
2018-12-17 21:23:56 +01:00
|
|
|
|
$context->vars_in_scope = $op_vars_in_scope;
|
|
|
|
|
}
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2019-12-07 20:03:20 +01:00
|
|
|
|
if ($stmt->name instanceof PhpParser\Node\Name
|
|
|
|
|
&& ($stmt->name->parts === ['get_class'] || $stmt->name->parts === ['gettype'])
|
2018-01-29 00:29:38 +01:00
|
|
|
|
) {
|
2019-12-07 20:03:20 +01:00
|
|
|
|
if ($stmt->args) {
|
|
|
|
|
$var = $stmt->args[0]->value;
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2019-12-07 20:03:20 +01:00
|
|
|
|
if ($var instanceof PhpParser\Node\Expr\Variable
|
2020-02-06 22:32:26 +01:00
|
|
|
|
&& is_string($var->name)
|
2019-12-07 20:03:20 +01:00
|
|
|
|
) {
|
2020-02-06 22:32:26 +01:00
|
|
|
|
$var_id = '$' . $var->name;
|
2019-01-05 16:32:39 +01:00
|
|
|
|
|
2019-12-07 20:03:20 +01:00
|
|
|
|
if (isset($context->vars_in_scope[$var_id])) {
|
|
|
|
|
$atomic_type = $stmt->name->parts === ['get_class']
|
|
|
|
|
? new Type\Atomic\GetClassT($var_id, $context->vars_in_scope[$var_id])
|
|
|
|
|
: new Type\Atomic\GetTypeT($var_id);
|
2018-01-29 00:29:38 +01:00
|
|
|
|
|
2020-01-24 19:34:50 +01:00
|
|
|
|
$statements_analyzer->node_data->setType($real_stmt, new Type\Union([$atomic_type]));
|
2019-12-07 20:03:20 +01:00
|
|
|
|
}
|
|
|
|
|
} elseif ($var_type = $statements_analyzer->node_data->getType($var)) {
|
|
|
|
|
$class_string_types = [];
|
2019-03-03 00:02:11 +01:00
|
|
|
|
|
2020-01-04 18:20:26 +01:00
|
|
|
|
foreach ($var_type->getAtomicTypes() as $class_type) {
|
2019-12-07 20:03:20 +01:00
|
|
|
|
if ($class_type instanceof Type\Atomic\TNamedObject) {
|
|
|
|
|
$class_string_types[] = new Type\Atomic\TClassString($class_type->value, clone $class_type);
|
2020-02-06 21:07:57 +01:00
|
|
|
|
} elseif ($class_type instanceof Type\Atomic\TTemplateParam
|
|
|
|
|
&& $class_type->as->isSingle()
|
|
|
|
|
) {
|
2020-02-06 21:09:34 +01:00
|
|
|
|
$as_atomic_type = \array_values($class_type->as->getAtomicTypes())[0];
|
2020-02-06 21:07:57 +01:00
|
|
|
|
|
|
|
|
|
if ($as_atomic_type instanceof Type\Atomic\TObject) {
|
|
|
|
|
$class_string_types[] = new Type\Atomic\TTemplateParamClass(
|
|
|
|
|
$class_type->param_name,
|
|
|
|
|
'object',
|
|
|
|
|
null,
|
|
|
|
|
$class_type->defining_class
|
|
|
|
|
);
|
|
|
|
|
} elseif ($as_atomic_type instanceof TNamedObject) {
|
|
|
|
|
$class_string_types[] = new Type\Atomic\TTemplateParamClass(
|
|
|
|
|
$class_type->param_name,
|
|
|
|
|
$as_atomic_type->value,
|
|
|
|
|
$as_atomic_type,
|
|
|
|
|
$class_type->defining_class
|
|
|
|
|
);
|
|
|
|
|
}
|
2019-12-07 20:03:20 +01:00
|
|
|
|
}
|
2019-03-03 00:02:11 +01:00
|
|
|
|
}
|
|
|
|
|
|
2019-12-07 20:03:20 +01:00
|
|
|
|
if ($class_string_types) {
|
2020-01-24 19:34:50 +01:00
|
|
|
|
$statements_analyzer->node_data->setType($real_stmt, new Type\Union($class_string_types));
|
2019-12-07 20:03:20 +01:00
|
|
|
|
}
|
2019-03-03 00:02:11 +01:00
|
|
|
|
}
|
2019-12-07 20:03:20 +01:00
|
|
|
|
} elseif ($stmt->name->parts === ['get_class']
|
|
|
|
|
&& ($get_class_name = $statements_analyzer->getFQCLN())
|
|
|
|
|
) {
|
|
|
|
|
$statements_analyzer->node_data->setType(
|
2020-01-24 19:34:50 +01:00
|
|
|
|
$real_stmt,
|
2019-12-07 20:03:20 +01:00
|
|
|
|
new Type\Union([
|
|
|
|
|
new Type\Atomic\TClassString(
|
|
|
|
|
$get_class_name,
|
|
|
|
|
new Type\Atomic\TNamedObject($get_class_name)
|
|
|
|
|
)
|
|
|
|
|
])
|
|
|
|
|
);
|
2018-01-29 00:29:38 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2019-02-24 07:33:25 +01:00
|
|
|
|
if ($codebase->store_node_types
|
2019-07-01 15:55:39 +02:00
|
|
|
|
&& !$context->collect_initializations
|
|
|
|
|
&& !$context->collect_mutations
|
2020-01-24 19:34:50 +01:00
|
|
|
|
&& ($stmt_type = $statements_analyzer->node_data->getType($real_stmt))
|
2018-10-26 22:17:15 +02:00
|
|
|
|
) {
|
|
|
|
|
$codebase->analyzer->addNodeType(
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer->getFilePath(),
|
2018-10-26 22:17:15 +02:00
|
|
|
|
$stmt,
|
2019-11-25 17:44:54 +01:00
|
|
|
|
(string) $stmt_type
|
2018-10-26 22:17:15 +02:00
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
|
2019-08-31 15:07:00 +02:00
|
|
|
|
if (!$context->collect_initializations
|
|
|
|
|
&& !$context->collect_mutations
|
|
|
|
|
&& ($context->mutation_free
|
|
|
|
|
|| $context->external_mutation_free
|
2019-08-31 20:54:59 +02:00
|
|
|
|
|| $codebase->find_unused_variables
|
|
|
|
|
|| !$config->remember_property_assignments_after_call)
|
2019-08-31 15:07:00 +02:00
|
|
|
|
) {
|
2019-09-09 18:11:04 +02:00
|
|
|
|
$must_use = true;
|
2019-09-08 17:49:14 +02:00
|
|
|
|
|
2019-08-13 19:15:23 +02:00
|
|
|
|
$callmap_function_pure = $function_id && $in_call_map
|
2019-09-08 17:49:14 +02:00
|
|
|
|
? $codebase->functions->isCallMapFunctionPure($codebase, $function_id, $stmt->args, $must_use)
|
2019-08-13 19:15:23 +02:00
|
|
|
|
: null;
|
|
|
|
|
|
2020-01-23 19:49:15 +01:00
|
|
|
|
if ((!$in_call_map
|
|
|
|
|
&& $function_storage
|
2019-08-13 19:15:23 +02:00
|
|
|
|
&& !$function_storage->pure)
|
|
|
|
|
|| ($callmap_function_pure === false)
|
|
|
|
|
) {
|
2019-08-30 23:26:55 +02:00
|
|
|
|
if ($context->mutation_free || $context->external_mutation_free) {
|
2019-08-13 19:15:23 +02:00
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
|
new ImpureFunctionCall(
|
2019-08-30 18:36:35 +02:00
|
|
|
|
'Cannot call an impure function from a mutation-free context',
|
2019-08-13 19:15:23 +02:00
|
|
|
|
new CodeLocation($statements_analyzer, $stmt->name)
|
|
|
|
|
),
|
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
|
)) {
|
|
|
|
|
// fall through
|
|
|
|
|
}
|
|
|
|
|
}
|
2019-08-31 20:54:59 +02:00
|
|
|
|
|
|
|
|
|
if (!$config->remember_property_assignments_after_call) {
|
|
|
|
|
$context->removeAllObjectVars();
|
|
|
|
|
}
|
2019-08-13 19:15:23 +02:00
|
|
|
|
} elseif ($function_id
|
2019-12-11 16:13:22 +01:00
|
|
|
|
&& (($function_storage
|
|
|
|
|
&& $function_storage->pure
|
|
|
|
|
&& !$function_storage->assertions
|
|
|
|
|
&& $must_use)
|
2019-09-08 17:49:14 +02:00
|
|
|
|
|| ($callmap_function_pure === true && $must_use))
|
2019-08-13 19:15:23 +02:00
|
|
|
|
&& $codebase->find_unused_variables
|
|
|
|
|
&& !$context->inside_conditional
|
|
|
|
|
&& !$context->inside_unset
|
|
|
|
|
) {
|
2019-08-16 05:28:21 +02:00
|
|
|
|
if (!$context->inside_assignment && !$context->inside_call) {
|
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
|
new UnusedFunctionCall(
|
|
|
|
|
'The call to ' . $function_id . ' is not used',
|
|
|
|
|
new CodeLocation($statements_analyzer, $stmt->name),
|
|
|
|
|
$function_id
|
|
|
|
|
),
|
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
|
)) {
|
|
|
|
|
// fall through
|
|
|
|
|
}
|
|
|
|
|
} else {
|
2019-08-17 05:33:28 +02:00
|
|
|
|
/** @psalm-suppress UndefinedPropertyAssignment */
|
2019-08-16 05:28:21 +02:00
|
|
|
|
$stmt->pure = true;
|
2019-07-18 07:31:48 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2018-05-28 21:07:42 +02:00
|
|
|
|
if ($function_storage) {
|
2019-11-04 03:27:40 +01:00
|
|
|
|
$generic_params = $template_result ? $template_result->generic_params : [];
|
|
|
|
|
|
2018-11-14 18:25:17 +01:00
|
|
|
|
if ($function_storage->assertions && $stmt->name instanceof PhpParser\Node\Name) {
|
2018-05-28 21:07:42 +02:00
|
|
|
|
self::applyAssertionsToContext(
|
2018-11-14 18:25:17 +01:00
|
|
|
|
$stmt->name,
|
2019-09-06 03:00:02 +02:00
|
|
|
|
null,
|
2018-05-28 21:07:42 +02:00
|
|
|
|
$function_storage->assertions,
|
|
|
|
|
$stmt->args,
|
2019-11-04 03:27:40 +01:00
|
|
|
|
$generic_params,
|
2018-05-28 21:07:42 +02:00
|
|
|
|
$context,
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer
|
2018-05-28 21:07:42 +02:00
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
|
2018-07-11 17:22:07 +02:00
|
|
|
|
if ($function_storage->if_true_assertions) {
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$statements_analyzer->node_data->setIfTrueAssertions(
|
|
|
|
|
$stmt,
|
|
|
|
|
array_map(
|
|
|
|
|
function (Assertion $assertion) use ($generic_params) : Assertion {
|
2019-12-30 16:01:31 +01:00
|
|
|
|
return $assertion->getUntemplatedCopy($generic_params ?: [], null);
|
2019-11-25 17:44:54 +01:00
|
|
|
|
},
|
|
|
|
|
$function_storage->if_true_assertions
|
|
|
|
|
)
|
2019-01-23 05:42:54 +01:00
|
|
|
|
);
|
2018-07-11 17:22:07 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ($function_storage->if_false_assertions) {
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$statements_analyzer->node_data->setIfFalseAssertions(
|
|
|
|
|
$stmt,
|
|
|
|
|
array_map(
|
|
|
|
|
function (Assertion $assertion) use ($generic_params) : Assertion {
|
2019-12-30 16:01:31 +01:00
|
|
|
|
return $assertion->getUntemplatedCopy($generic_params ?: [], null);
|
2019-11-25 17:44:54 +01:00
|
|
|
|
},
|
|
|
|
|
$function_storage->if_false_assertions
|
|
|
|
|
)
|
2019-01-23 05:42:54 +01:00
|
|
|
|
);
|
2018-05-28 21:07:42 +02:00
|
|
|
|
}
|
2019-06-15 18:09:15 +02:00
|
|
|
|
|
|
|
|
|
if ($function_storage->deprecated && $function_id) {
|
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
|
new DeprecatedFunction(
|
|
|
|
|
'The function ' . $function_id . ' has been marked as deprecated',
|
|
|
|
|
$code_location,
|
|
|
|
|
$function_id
|
|
|
|
|
),
|
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
|
|
|
|
)) {
|
|
|
|
|
// continue
|
|
|
|
|
}
|
|
|
|
|
}
|
2018-02-23 21:39:33 +01:00
|
|
|
|
}
|
|
|
|
|
|
2018-04-07 21:16:46 +02:00
|
|
|
|
if ($function instanceof PhpParser\Node\Name) {
|
|
|
|
|
$first_arg = isset($stmt->args[0]) ? $stmt->args[0] : null;
|
|
|
|
|
|
|
|
|
|
if ($function->parts === ['method_exists']) {
|
2019-08-19 04:27:19 +02:00
|
|
|
|
$second_arg = isset($stmt->args[1]) ? $stmt->args[1] : null;
|
|
|
|
|
|
|
|
|
|
if ($first_arg
|
|
|
|
|
&& $first_arg->value instanceof PhpParser\Node\Expr\Variable
|
|
|
|
|
&& $second_arg
|
|
|
|
|
&& $second_arg->value instanceof PhpParser\Node\Scalar\String_
|
|
|
|
|
) {
|
|
|
|
|
// do nothing
|
|
|
|
|
} else {
|
|
|
|
|
$context->check_methods = false;
|
|
|
|
|
}
|
2018-04-07 21:16:46 +02:00
|
|
|
|
} elseif ($function->parts === ['class_exists']) {
|
2019-06-17 17:31:43 +02:00
|
|
|
|
if ($first_arg) {
|
|
|
|
|
if ($first_arg->value instanceof PhpParser\Node\Scalar\String_) {
|
|
|
|
|
$context->phantom_classes[strtolower($first_arg->value->value)] = true;
|
|
|
|
|
} elseif ($first_arg->value instanceof PhpParser\Node\Expr\ClassConstFetch
|
|
|
|
|
&& $first_arg->value->class instanceof PhpParser\Node\Name
|
|
|
|
|
&& $first_arg->value->name instanceof PhpParser\Node\Identifier
|
|
|
|
|
&& $first_arg->value->name->name === 'class'
|
|
|
|
|
) {
|
|
|
|
|
$resolved_name = (string) $first_arg->value->class->getAttribute('resolvedName');
|
2019-06-27 16:17:11 +02:00
|
|
|
|
|
|
|
|
|
if (!$codebase->classlikes->classExists($resolved_name)) {
|
|
|
|
|
$context->phantom_classes[strtolower($resolved_name)] = true;
|
2019-06-28 16:17:59 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
} elseif ($function->parts === ['interface_exists']) {
|
|
|
|
|
if ($first_arg) {
|
|
|
|
|
if ($first_arg->value instanceof PhpParser\Node\Scalar\String_) {
|
|
|
|
|
$context->phantom_classes[strtolower($first_arg->value->value)] = true;
|
|
|
|
|
} elseif ($first_arg->value instanceof PhpParser\Node\Expr\ClassConstFetch
|
|
|
|
|
&& $first_arg->value->class instanceof PhpParser\Node\Name
|
|
|
|
|
&& $first_arg->value->name instanceof PhpParser\Node\Identifier
|
|
|
|
|
&& $first_arg->value->name->name === 'class'
|
|
|
|
|
) {
|
|
|
|
|
$resolved_name = (string) $first_arg->value->class->getAttribute('resolvedName');
|
|
|
|
|
|
|
|
|
|
if (!$codebase->classlikes->interfaceExists($resolved_name)) {
|
|
|
|
|
$context->phantom_classes[strtolower($resolved_name)] = true;
|
2019-06-27 16:17:11 +02:00
|
|
|
|
}
|
2019-06-17 17:31:43 +02:00
|
|
|
|
}
|
2018-04-07 21:16:46 +02:00
|
|
|
|
}
|
2018-08-10 05:29:30 +02:00
|
|
|
|
} elseif ($function->parts === ['file_exists'] && $first_arg) {
|
2018-11-06 03:57:36 +01:00
|
|
|
|
$var_id = ExpressionAnalyzer::getArrayVarId($first_arg->value, null);
|
2018-08-10 05:29:30 +02:00
|
|
|
|
|
|
|
|
|
if ($var_id) {
|
|
|
|
|
$context->phantom_files[$var_id] = true;
|
|
|
|
|
}
|
2018-04-07 21:16:46 +02:00
|
|
|
|
} elseif ($function->parts === ['extension_loaded']) {
|
2018-10-04 22:58:11 +02:00
|
|
|
|
if ($first_arg
|
|
|
|
|
&& $first_arg->value instanceof PhpParser\Node\Scalar\String_
|
|
|
|
|
) {
|
2018-10-08 19:08:03 +02:00
|
|
|
|
if (@extension_loaded($first_arg->value->value)) {
|
|
|
|
|
// do nothing
|
|
|
|
|
} else {
|
|
|
|
|
$context->check_classes = false;
|
|
|
|
|
}
|
2018-10-04 22:58:11 +02:00
|
|
|
|
}
|
2018-04-07 21:16:46 +02:00
|
|
|
|
} elseif ($function->parts === ['function_exists']) {
|
|
|
|
|
$context->check_functions = false;
|
|
|
|
|
} elseif ($function->parts === ['is_callable']) {
|
|
|
|
|
$context->check_methods = false;
|
|
|
|
|
$context->check_functions = false;
|
|
|
|
|
} elseif ($function->parts === ['defined']) {
|
|
|
|
|
$context->check_consts = false;
|
|
|
|
|
} elseif ($function->parts === ['extract']) {
|
|
|
|
|
$context->check_variables = false;
|
2019-04-13 17:31:22 +02:00
|
|
|
|
} elseif (strtolower($function->parts[0]) === 'var_dump'
|
|
|
|
|
|| strtolower($function->parts[0]) === 'shell_exec') {
|
2018-04-07 21:16:46 +02:00
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
|
new ForbiddenCode(
|
|
|
|
|
'Unsafe ' . implode('', $function->parts),
|
2018-11-11 18:01:14 +01:00
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
2018-04-07 21:16:46 +02:00
|
|
|
|
),
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
2018-04-07 21:16:46 +02:00
|
|
|
|
)) {
|
2019-03-23 15:58:26 +01:00
|
|
|
|
// continue
|
2018-04-07 21:16:46 +02:00
|
|
|
|
}
|
2018-09-18 22:42:51 +02:00
|
|
|
|
} elseif (isset($codebase->config->forbidden_functions[strtolower((string) $function)])) {
|
|
|
|
|
if (IssueBuffer::accepts(
|
|
|
|
|
new ForbiddenCode(
|
|
|
|
|
'You have forbidden the use of ' . $function,
|
2018-11-11 18:01:14 +01:00
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
2018-09-18 22:42:51 +02:00
|
|
|
|
),
|
2018-11-11 18:01:14 +01:00
|
|
|
|
$statements_analyzer->getSuppressedIssues()
|
2018-09-18 22:42:51 +02:00
|
|
|
|
)) {
|
2019-03-23 15:58:26 +01:00
|
|
|
|
// continue
|
2018-09-18 22:42:51 +02:00
|
|
|
|
}
|
2018-04-07 21:16:46 +02:00
|
|
|
|
} elseif ($function->parts === ['define']) {
|
2019-02-18 19:51:27 +01:00
|
|
|
|
if ($first_arg) {
|
2019-02-22 00:19:12 +01:00
|
|
|
|
$fq_const_name = StatementsAnalyzer::getConstName(
|
|
|
|
|
$first_arg->value,
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$statements_analyzer->node_data,
|
2019-02-22 00:19:12 +01:00
|
|
|
|
$codebase,
|
|
|
|
|
$statements_analyzer->getAliases()
|
|
|
|
|
);
|
2019-02-18 19:51:27 +01:00
|
|
|
|
|
2019-02-22 00:19:12 +01:00
|
|
|
|
if ($fq_const_name !== null) {
|
2019-02-18 19:51:27 +01:00
|
|
|
|
$second_arg = $stmt->args[1];
|
2020-01-02 16:41:43 +01:00
|
|
|
|
$was_in_call = $context->inside_call;
|
2019-08-13 19:15:23 +02:00
|
|
|
|
$context->inside_call = true;
|
2019-02-18 19:51:27 +01:00
|
|
|
|
ExpressionAnalyzer::analyze($statements_analyzer, $second_arg->value, $context);
|
2020-01-02 16:41:43 +01:00
|
|
|
|
$context->inside_call = $was_in_call;
|
2019-02-18 19:51:27 +01:00
|
|
|
|
|
|
|
|
|
$statements_analyzer->setConstType(
|
2019-02-22 00:19:12 +01:00
|
|
|
|
$fq_const_name,
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$statements_analyzer->node_data->getType($second_arg->value) ?: Type::getMixed(),
|
2019-02-18 19:51:27 +01:00
|
|
|
|
$context
|
|
|
|
|
);
|
2020-01-14 22:56:09 +01:00
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
$context->check_consts = false;
|
|
|
|
|
}
|
|
|
|
|
} elseif ($function->parts === ['constant']) {
|
|
|
|
|
if ($first_arg) {
|
|
|
|
|
$fq_const_name = StatementsAnalyzer::getConstName(
|
|
|
|
|
$first_arg->value,
|
|
|
|
|
$statements_analyzer->node_data,
|
|
|
|
|
$codebase,
|
|
|
|
|
$statements_analyzer->getAliases()
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
if ($fq_const_name !== null) {
|
|
|
|
|
$const_type = $statements_analyzer->getConstType(
|
|
|
|
|
$fq_const_name,
|
|
|
|
|
true,
|
|
|
|
|
$context
|
|
|
|
|
);
|
|
|
|
|
|
2020-01-14 23:03:58 +01:00
|
|
|
|
if ($const_type) {
|
2020-01-24 19:34:50 +01:00
|
|
|
|
$statements_analyzer->node_data->setType($real_stmt, $const_type);
|
2020-01-14 23:03:58 +01:00
|
|
|
|
}
|
2019-02-18 19:51:27 +01:00
|
|
|
|
}
|
2018-04-07 21:16:46 +02:00
|
|
|
|
} else {
|
|
|
|
|
$context->check_consts = false;
|
|
|
|
|
}
|
2019-02-26 07:03:33 +01:00
|
|
|
|
} elseif ($first_arg
|
|
|
|
|
&& $function_id
|
|
|
|
|
&& strpos($function_id, 'is_') === 0
|
|
|
|
|
&& $function_id !== 'is_a'
|
|
|
|
|
) {
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$stmt_assertions = $statements_analyzer->node_data->getAssertions($stmt);
|
|
|
|
|
|
|
|
|
|
if ($stmt_assertions !== null) {
|
|
|
|
|
$assertions = $stmt_assertions;
|
2019-02-26 07:03:33 +01:00
|
|
|
|
} else {
|
|
|
|
|
$assertions = AssertionFinder::processFunctionCall(
|
|
|
|
|
$stmt,
|
|
|
|
|
$context->self,
|
|
|
|
|
$statements_analyzer,
|
|
|
|
|
$context->inside_negation
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$changed_vars = [];
|
|
|
|
|
|
|
|
|
|
$referenced_var_ids = array_map(
|
|
|
|
|
function (array $_) : bool {
|
|
|
|
|
return true;
|
|
|
|
|
},
|
|
|
|
|
$assertions
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
if ($assertions) {
|
|
|
|
|
Reconciler::reconcileKeyedTypes(
|
2019-12-08 22:35:56 +01:00
|
|
|
|
$assertions,
|
2019-02-26 07:03:33 +01:00
|
|
|
|
$assertions,
|
|
|
|
|
$context->vars_in_scope,
|
|
|
|
|
$changed_vars,
|
|
|
|
|
$referenced_var_ids,
|
|
|
|
|
$statements_analyzer,
|
|
|
|
|
[],
|
|
|
|
|
$context->inside_loop,
|
|
|
|
|
new CodeLocation($statements_analyzer->getSource(), $stmt)
|
|
|
|
|
);
|
|
|
|
|
}
|
2018-04-07 21:16:46 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2019-10-14 23:10:30 +02:00
|
|
|
|
if ($codebase->taint
|
|
|
|
|
&& $function_id
|
|
|
|
|
&& $in_call_map
|
|
|
|
|
&& $codebase->functions->isCallMapFunctionPure($codebase, $function_id, $stmt->args)
|
2020-01-24 19:34:50 +01:00
|
|
|
|
&& ($stmt_type = $statements_analyzer->node_data->getType($real_stmt))
|
2019-10-14 23:10:30 +02:00
|
|
|
|
) {
|
2019-11-25 17:44:54 +01:00
|
|
|
|
if ($function_id === 'substr'
|
|
|
|
|
&& isset($stmt->args[0])
|
|
|
|
|
&& ($first_arg_type = $statements_analyzer->node_data->getType($stmt->args[0]->value))
|
|
|
|
|
) {
|
|
|
|
|
$stmt_type->sources = $first_arg_type->sources ?? null;
|
|
|
|
|
$stmt_type->tainted = $first_arg_type->tainted ?? null;
|
2019-10-14 23:10:30 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (($function_id === 'str_replace' || $function_id === 'preg_replace')
|
|
|
|
|
&& count($stmt->args) >= 3
|
|
|
|
|
) {
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$second_arg_type = $statements_analyzer->node_data->getType($stmt->args[1]->value);
|
|
|
|
|
$third_arg_type = $statements_analyzer->node_data->getType($stmt->args[2]->value);
|
|
|
|
|
|
|
|
|
|
$stmt_type->sources = array_merge(
|
|
|
|
|
$second_arg_type->sources ?? [],
|
|
|
|
|
$third_arg_type->sources ?? []
|
2019-10-14 23:10:30 +02:00
|
|
|
|
);
|
|
|
|
|
|
2019-11-25 17:44:54 +01:00
|
|
|
|
$stmt_type->tainted = ($second_arg_type->tainted ?? 0) | ($third_arg_type->tainted ?? 0);
|
2019-10-14 23:10:30 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2020-01-24 19:34:50 +01:00
|
|
|
|
if (!$statements_analyzer->node_data->getType($real_stmt)) {
|
|
|
|
|
$statements_analyzer->node_data->setType($real_stmt, Type::getMixed());
|
2019-11-14 20:44:29 +01:00
|
|
|
|
}
|
|
|
|
|
|
2018-01-29 00:29:38 +01:00
|
|
|
|
return null;
|
|
|
|
|
}
|
|
|
|
|
}
|