/**
* {@inheritdoc}
*/
public function getParameters(ReflectionFunctionAbstract $reflection, array $providedParameters, array $resolvedParameters)
{
// Skip parameters already resolved
if (!empty($resolvedParameters)) {
$providedParameters = array_diff_key($providedParameters, $resolvedParameters);
}
foreach ($providedParameters as $key => $value) {
if (!$value instanceof DefinitionHelper) {
continue;
}
$definition = $value->getDefinition('');
$value = $this->definitionResolver->resolve($definition);
if (is_int($key)) {
// Indexed by position
$resolvedParameters[$key] = $value;
} else {
// Indexed by parameter name
// TODO optimize?
$reflectionParameters = $reflection->getParameters();
foreach ($reflectionParameters as $reflectionParameter) {
if ($key === $reflectionParameter->name) {
$resolvedParameters[$reflectionParameter->getPosition()] = $value;
}
}
}
}
return $resolvedParameters;
}
/**
* @param MethodInjection $definition
* @param \ReflectionFunctionAbstract $functionReflection
* @param array $parameters
*
* @throws DefinitionException A parameter has no value defined or guessable.
* @return array Parameters to use to call the function.
*/
public function resolveParameters(MethodInjection $definition = null, \ReflectionFunctionAbstract $functionReflection = null, array $parameters = [])
{
$args = [];
if (!$functionReflection) {
return $args;
}
$definitionParameters = $definition ? $definition->getParameters() : array();
foreach ($functionReflection->getParameters() as $index => $parameter) {
if (array_key_exists($parameter->getName(), $parameters)) {
// Look in the $parameters array
$value =& $parameters[$parameter->getName()];
} elseif (array_key_exists($index, $definitionParameters)) {
// Look in the definition
$value =& $definitionParameters[$index];
} else {
// If the parameter is optional and wasn't specified, we take its default value
if ($parameter->isOptional()) {
$args[] = $this->getParameterDefaultValue($parameter, $functionReflection);
continue;
}
throw new DefinitionException(sprintf("The parameter '%s' of %s has no value defined or guessable", $parameter->getName(), $this->getFunctionName($functionReflection)));
}
if ($value instanceof DefinitionHelper) {
$nestedDefinition = $value->getDefinition('');
// If the container cannot produce the entry, we can use the default parameter value
if ($parameter->isOptional() && !$this->definitionResolver->isResolvable($nestedDefinition)) {
$value = $this->getParameterDefaultValue($parameter, $functionReflection);
} else {
$value = $this->definitionResolver->resolve($nestedDefinition);
}
}
$args[] =& $value;
}
return $args;
}
private function resolveDefinition(DefinitionHelper $value, ArrayDefinition $definition, $key)
{
try {
return $this->definitionResolver->resolve($value->getDefinition(''));
} catch (DependencyException $e) {
throw $e;
} catch (Exception $e) {
throw new DependencyException(sprintf('Error while resolving %s[%s]. %s', $definition->getName(), $key, $e->getMessage()), 0, $e);
}
}
/**
* {@inheritdoc}
*/
public function getParameters(ReflectionFunctionAbstract $reflection, array $providedParameters, array $resolvedParameters)
{
foreach ($resolvedParameters as &$parameter) {
if ($parameter instanceof DefinitionHelper) {
$definition = $parameter->getDefinition('');
$parameter = $this->definitionResolver->resolve($definition);
}
}
return $resolvedParameters;
}
/**
* 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;
}
/**
* Resolve a decorator definition to a value.
*
* This will call the callable of the definition and pass it the decorated entry.
*
* @param DecoratorDefinition $definition
*
* {@inheritdoc}
*/
public function resolve(Definition $definition, array $parameters = [])
{
$callable = $definition->getCallable();
if (!is_callable($callable)) {
throw new DefinitionException(sprintf('The decorator "%s" is not callable', $definition->getName()));
}
$decoratedDefinition = $definition->getDecoratedDefinition();
if (!$decoratedDefinition instanceof Definition) {
if (!$definition->getSubDefinitionName()) {
throw new DefinitionException('Decorators cannot be nested in another definition');
}
throw new DefinitionException(sprintf('Entry "%s" decorates nothing: no previous definition with the same name was found', $definition->getName()));
}
$decorated = $this->definitionResolver->resolve($decoratedDefinition);
return call_user_func($callable, $decorated, $this->container);
}
private function resolveExtraParams(array $params)
{
$resolved = [];
foreach ($params as $key => $value) {
if ($value instanceof DefinitionHelper) {
// As per ObjectCreator::injectProperty, use '' for an anonymous sub-definition
$value = $value->getDefinition('');
}
if (!$value instanceof Definition) {
$resolved[$key] = $value;
} else {
$resolved[$key] = $this->resolver->resolve($value);
}
}
return $resolved;
}
/**
* Resolves a definition.
*
* Checks for circular dependencies while resolving the definition.
*
* @param Definition $definition
* @param array $parameters
*
* @throws DependencyException Error while resolving the entry.
* @return mixed
*/
private function resolveDefinition(Definition $definition, array $parameters = [])
{
$entryName = $definition->getName();
// Check if we are already getting this entry -> circular dependency
if (isset($this->entriesBeingResolved[$entryName])) {
throw new DependencyException("Circular dependency detected while trying to resolve entry '{$entryName}'");
}
$this->entriesBeingResolved[$entryName] = true;
// Resolve the definition
try {
$value = $this->definitionResolver->resolve($definition, $parameters);
} catch (Exception $exception) {
unset($this->entriesBeingResolved[$entryName]);
throw $exception;
}
unset($this->entriesBeingResolved[$entryName]);
return $value;
}
/**
* Inject dependencies into properties.
*
* @param object $object Object to inject dependencies into
* @param PropertyInjection $propertyInjection Property injection definition
*
* @throws DependencyException
* @throws DefinitionException
*/
private function injectProperty($object, PropertyInjection $propertyInjection)
{
$propertyName = $propertyInjection->getPropertyName();
$property = new ReflectionProperty(get_class($object), $propertyName);
$value = $propertyInjection->getValue();
if ($value instanceof DefinitionHelper) {
/** @var Definition $nestedDefinition */
$nestedDefinition = $value->getDefinition('');
try {
$value = $this->definitionResolver->resolve($nestedDefinition);
} catch (DependencyException $e) {
throw $e;
} catch (Exception $e) {
throw new DependencyException(sprintf("Error while injecting in %s::%s. %s", get_class($object), $propertyName, $e->getMessage()), 0, $e);
}
}
if (!$property->isPublic()) {
$property->setAccessible(true);
}
$property->setValue($object, $value);
}