Internal error thrown when calling json_decode without_arguments #7762
Description
Bug report
PHPStan throws an internal error when calling json_decode without arguments.
This might be confusing, as the error does not show the number of the line, on which such an error occurs. Moreover, this is a user error, not an internal one, and should be represented as such.
Code snippet that reproduces the problem
<?php
json_decode()https://phpstan.org/r/c976d447-1984-4ffe-8ffb-ddbcf509921c
Expected output
A normal error, that references the line number, for example something like this:
------ ------------------------------------------
Line file.php
------ ------------------------------------------
2 json_decode() must be called with at least one argument
------ ------------------------------------------
Actual output
Internal error: Internal error: PHPStan\Analyser\MutatingScope::getType(): Argument #1 ($node) must be of type PhpParser\Node\Expr, null given, called in
phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Type/Php/JsonThrowOnErrorDynamicReturnTypeExtension.php on line 68 in file
/path/to/project/src/some/path/file.php
Post the following stack trace to https://github.com/phpstan/phpstan/issues/new?template=Bug_report.md:
#0 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Type/Php/JsonThrowOnErrorDynamicReturnTypeExtension.php(68): PHPStan\Analyser\MutatingScope->getType()
#1 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Type/Php/JsonThrowOnErrorDynamicReturnTypeExtension.php(53):
PHPStan\Type\Php\JsonThrowOnErrorDynamicReturnTypeExtension->narrowTypeForJsonDecode()
#2 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/MutatingScope.php(1492): PHPStan\Type\Php\JsonThrowOnErrorDynamicReturnTypeExtension->getTypeFromFunctionCall()
#3 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/MutatingScope.php(556): PHPStan\Analyser\MutatingScope->resolveType()
#4 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(1422): PHPStan\Analyser\MutatingScope->getType()
#5 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(2635): PHPStan\Analyser\NodeScopeResolver->PHPStan\Analyser\{closure}()
#6 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(1432): PHPStan\Analyser\NodeScopeResolver->processAssignVar()
#7 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(527): PHPStan\Analyser\NodeScopeResolver->processExprNode()
#8 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(332): PHPStan\Analyser\NodeScopeResolver->processStmtNode()
#9 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(964): PHPStan\Analyser\NodeScopeResolver->processStmtNodes()
#10 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(332): PHPStan\Analyser\NodeScopeResolver->processStmtNode()
#11 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(1002): PHPStan\Analyser\NodeScopeResolver->processStmtNodes()
#12 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(332): PHPStan\Analyser\NodeScopeResolver->processStmtNode()
#13 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(605): PHPStan\Analyser\NodeScopeResolver->processStmtNodes()
#14 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/NodeScopeResolver.php(302): PHPStan\Analyser\NodeScopeResolver->processStmtNode()
#15 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Analyser/FileAnalyser.php(174): PHPStan\Analyser\NodeScopeResolver->processNodes()
#16 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Command/WorkerCommand.php(147): PHPStan\Analyser\FileAnalyser->analyseFile()
#17 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(97): PHPStan\Command\WorkerCommand->PHPStan\Command\{closure}()
#18 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/clue/ndjson-react/src/Decoder.php(110): _PHPStan_9a6ded56a\Evenement\EventEmitter->emit()
#19 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(97): _PHPStan_9a6ded56a\Clue\React\NDJson\Decoder->handleData()
#20 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/react/stream/src/Util.php(62): _PHPStan_9a6ded56a\Evenement\EventEmitter->emit()
#21 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(97):
_PHPStan_9a6ded56a\React\Stream\Util::_PHPStan_9a6ded56a\React\Stream\{closure}()
#22 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/react/stream/src/DuplexResourceStream.php(154): _PHPStan_9a6ded56a\Evenement\EventEmitter->emit()
#23 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/react/event-loop/src/StreamSelectLoop.php(201): _PHPStan_9a6ded56a\React\Stream\DuplexResourceStream->handleData()
#24 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/react/event-loop/src/StreamSelectLoop.php(173): _PHPStan_9a6ded56a\React\EventLoop\StreamSelectLoop->waitForStreamActivity()
#25 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/src/Command/WorkerCommand.php(107): _PHPStan_9a6ded56a\React\EventLoop\StreamSelectLoop->run()
#26 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Command/Command.php(259): PHPStan\Command\WorkerCommand->execute()
#27 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Application.php(865): _PHPStan_9a6ded56a\Symfony\Component\Console\Command\Command->run()
#28 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Application.php(259): _PHPStan_9a6ded56a\Symfony\Component\Console\Application->doRunCommand()
#29 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/vendor/symfony/console/Application.php(157): _PHPStan_9a6ded56a\Symfony\Component\Console\Application->doRun()
#30 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/bin/phpstan(127): _PHPStan_9a6ded56a\Symfony\Component\Console\Application->run()
#31 phar:///path/to/project/vendor/phpstan/phpstan/phpstan.phar/bin/phpstan(128): _PHPStan_9a6ded56a\{closure}()
#32 /path/to/project/vendor/phpstan/phpstan/phpstan(8): require('...')
#33 /path/to/project/vendor/bin/phpstan(120): include('...')