8000 DX: better error message if factory class is empty by dbu · Pull Request #18547 · symfony/symfony · GitHub
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DX: better error message if factory class is empty #18547

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merged 1 commit into from
Apr 18, 2016
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DX: better error message if factory class is empty #18547

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better error message if factory class is empty
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@dbu
dbu committed Apr 18, 2016
commit 09993265c2ed3895bf01dda1e8a927bfe23c695c
10 changes: 7 additions & 3 deletions src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
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Original file line number Diff line number Diff line change
Expand Up @@ -330,7 +330,7 @@ private function addServiceInlinedDefinitions($id, $definition)
throw new ServiceCircularReferenceException($id, array($id));
}

$code .= $this->addNewInstance($sDefinition, '$'.$name, ' = ');
$code .= $this->addNewInstance($sDefinition, '$'.$name, ' = ', $id);

if (!$this->hasReference($id, $sDefinition->getMethodCalls(), true) && !$this->hasReference($id, $sDefinition->getProperties(), true)) {
$code .= $this->addServiceMethodCalls(null, $sDefinition, $name);
Expand Down Expand Up @@ -404,7 +404,7 @@ private function addServiceInstance($id, $definition)
$instantiation .= ' = ';
}

$code = $this->addNewInstance($definition, $return, $instantiation);
$code = $this->addNewInstance($definition, $return, $instantiation, $id);

if (!$simple) {
$code .= "\n";
Expand Down Expand Up @@ -692,7 +692,7 @@ private function addServices()
return $publicServices.$privateServices;
}

private function addNewInstance(Definition $definition, $return, $instantiation)
private function addNewInstance(Definition $definition, $return, $instantiation, $id)
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i realized that the id parameter was removed since symfony 2 (i tested this in my project with symfony 2...)

not sure if its ok to pass the id around just for the purpose of the error message, but without the id the message becomes a lot less useful

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It's a private method so I don't think it really matters that much. For the sake of DX, I'd say it's a good case to pass it along because it's required to build the error message.

{
$class = $this->dumpValue($definition->getClass());

Expand All @@ -716,6 +716,10 @@ private function addNewInstance(Definition $definition, $return, $instantiation)
$class = $this->dumpValue($callable[0]);
// If the class is a string we can optimize call_user_func away
if (strpos($class, "'") === 0) {
if ("''" === $class) {
throw new RuntimeException(sprintf('Cannot dump definition: The "%s" service is defined to be created by a factory but is missing the service reference, did you forget to define the factory service id or class?', $id));
}

return sprintf(" $return{$instantiation}%s::%s(%s);\n", $this->dumpLiteralClass($class), $callable[1], $arguments ? implode(', ', $arguments) : '');
}

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