/**
* Resolve an environment variable definition to a value.
*
* @param EnvironmentVariableDefinition $definition
*
* {@inheritdoc}
*/
public function resolve(Definition $definition, array $parameters = [])
{
$value = call_user_func($this->variableReader, $definition->getVariableName());
if (false !== $value) {
return $value;
}
if (!$definition->isOptional()) {
throw new DefinitionException(sprintf("The environment variable '%s' has not been defined", $definition->getVariableName()));
}
$value = $definition->getDefaultValue();
// Nested definition
if ($value instanceof DefinitionHelper) {
return $this->definitionResolver->resolve($value->getDefinition(''));
}
return $value;
}
