/**
* @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 $args;
}
private function dumpMethodParameters($className, MethodInjection $methodInjection)
{
$methodReflection = new \ReflectionMethod($className, $methodInjection->getMethodName());
$args = [];
$definitionParameters = $methodInjection->getParameters();
foreach ($methodReflection->getParameters() as $index => $parameter) {
if (array_key_exists($index, $definitionParameters)) {
$value = $definitionParameters[$index];
if ($value instanceof EntryReference) {
$args[] = sprintf('$%s = get(%s)', $parameter->getName(), $value->getName());
} else {
$args[] = sprintf('$%s = %s', $parameter->getName(), var_export($value, true));
}
continue;
}
// If the parameter is optional and wasn't specified, we take its default value
if ($parameter->isOptional()) {
try {
$value = $parameter->getDefaultValue();
$args[] = sprintf('$%s = (default value) %s', $parameter->getName(), var_export($value, true));
continue;
} catch (ReflectionException $e) {
// The default value can't be read through Reflection because it is a PHP internal class
}
}
$args[] = sprintf('$%s = #UNDEFINED#', $parameter->getName());
}
return implode(PHP_EOL . ' ', $args);
}
private function mergeConstructorInjection(ObjectDefinition $definition)
{
if ($definition->getConstructorInjection() !== null) {
if ($this->constructorInjection !== null) {
// Merge
$this->constructorInjection->merge($definition->getConstructorInjection());
} else {
// Set
$this->constructorInjection = $definition->getConstructorInjection();
}
}
}
/**
* {@inheritdoc}
*/
public function getDefinition($name)
{
if (!class_exists($name) && !interface_exists($name)) {
return null;
}
$definition = new ObjectDefinition($name);
// Constructor
$class = new \ReflectionClass($name);
$constructor = $class->getConstructor();
if ($constructor && $constructor->isPublic()) {
$definition->setConstructorInjection(MethodInjection::constructor($this->getParametersDefinition($constructor)));
}
return $definition;
}
/**
* {@inheritdoc}
*/
public function getDefinition($entryName)
{
$definition = new ObjectDefinition($entryName, $this->className);
if ($this->lazy !== null) {
$definition->setLazy($this->lazy);
}
if ($this->scope !== null) {
$definition->setScope($this->scope);
}
if (!empty($this->constructor)) {
$parameters = $this->fixParameters($definition, '__construct', $this->constructor);
$constructorInjection = MethodInjection::constructor($parameters);
$definition->setConstructorInjection($constructorInjection);
}
if (!empty($this->properties)) {
foreach ($this->properties as $property => $value) {
$definition->addPropertyInjection(new PropertyInjection($property, $value));
}
}
if (!empty($this->methods)) {
foreach ($this->methods as $method => $calls) {
foreach ($calls as $parameters) {
$parameters = $this->fixParameters($definition, $method, $parameters);
$methodInjection = new MethodInjection($method, $parameters);
$definition->addMethodInjection($methodInjection);
}
}
}
return $definition;
}
private function getMethodInjection(ReflectionMethod $method)
{
// Look for @Inject annotation
/** @var $annotation Inject|null */
try {
$annotation = $this->getAnnotationReader()->getMethodAnnotation($method, 'DI\\Annotation\\Inject');
} catch (AnnotationException $e) {
throw new AnnotationException(sprintf('@Inject annotation on %s::%s is malformed. %s', $method->getDeclaringClass()->getName(), $method->getName(), $e->getMessage()), 0, $e);
}
$annotationParameters = $annotation ? $annotation->getParameters() : [];
// @Inject on constructor is implicit
if (!($annotation || $method->isConstructor())) {
return null;
}
$parameters = [];
foreach ($method->getParameters() as $index => $parameter) {
$entryName = $this->getMethodParameter($index, $parameter, $annotationParameters);
if ($entryName !== null) {
$parameters[$index] = new EntryReference($entryName);
}
}
if ($method->isConstructor()) {
return MethodInjection::constructor($parameters);
} else {
return new MethodInjection($method->getName(), $parameters);
}
}