3 namespace Drupal\drupalmoduleupgrader\Plugin\DMU\Rewriter;
5 use Drupal\Core\StringTranslation\TranslationInterface;
6 use Drupal\drupalmoduleupgrader\PluginBase;
7 use Drupal\drupalmoduleupgrader\RewriterInterface;
8 use Drupal\drupalmoduleupgrader\Utility\Filter\FieldValueFilter;
9 use Drupal\drupalmoduleupgrader\Utility\Filter\NodeAssignmentFilter;
10 use Pharborist\ArrayLookupNode;
11 use Pharborist\Constants\ConstantNode;
12 use Pharborist\ExpressionNode;
13 use Pharborist\Filter;
14 use Pharborist\Functions\CallNode;
15 use Pharborist\Functions\EmptyNode;
16 use Pharborist\Functions\IssetNode;
17 use Pharborist\Functions\ParameterNode;
19 use Pharborist\NodeCollection;
20 use Pharborist\Objects\ClassConstantLookupNode;
21 use Pharborist\Objects\ObjectMethodCallNode;
22 use Pharborist\Objects\ObjectPropertyNode;
23 use Pharborist\Operators\AssignNode;
24 use Pharborist\Operators\BooleanNotNode;
25 use Pharborist\Parser;
26 use Pharborist\Types\StringNode;
27 use Pharborist\Variables\VariableNode;
28 use Psr\Log\LoggerInterface;
33 * deriver = "\Drupal\drupalmoduleupgrader\Plugin\DMU\Rewriter\GenericDeriver"
36 class Generic extends PluginBase implements RewriterInterface {
39 * @var \Drupal\drupalmoduleupgrader\Utility\Filter\NodeAssignmentFilter
41 protected $isAssigned;
43 public function __construct(array $configuration, $plugin_id, $plugin_definition, TranslationInterface $translator, LoggerInterface $log) {
44 parent::__construct($configuration, $plugin_id, $plugin_definition, $translator, $log);
45 $this->isAssigned = new NodeAssignmentFilter();
51 public function rewrite(ParameterNode $parameter) {
52 // Don't even try to rewrite the function if the parameter is reassigned.
53 if ($this->isReassigned($parameter)) {
54 $error = $this->t('@function() cannot be parametrically rewritten because @parameter is reassigned.', [
55 '@parameter' => $parameter->getName(),
56 '@function' => $parameter->getFunction()->getName()->getText(),
58 throw new \LogicException($error);
61 foreach ($this->getExpressions($parameter)->not($this->isAssigned) as $expr) {
62 $property = $this->getProperty($expr);
63 if (empty($property)) {
67 $getter = $this->rewriteAsGetter($expr, $property);
69 $empty = $expr->closest(Filter::isFunctionCall('empty', 'isset'));
71 // If the original expression was wrapped by a call to isset() or
72 // empty(), we need to replace it entirely.
73 if ($getter instanceof CallNode && $empty instanceof CallNode) {
74 // If the isset() or empty() call was negated, reverse that logic.
75 $parent = $empty->parent();
76 if ($parent instanceof BooleanNotNode) {
77 $parent->replaceWith($getter);
80 $empty->replaceWith(BooleanNotNode::fromExpression($getter));
84 $expr->replaceWith($getter);
89 foreach ($this->getExpressions($parameter)->filter($this->isAssigned) as $expr) {
90 // If the property cannot be determined, don't even try to rewrite the
92 $property = $this->getProperty($expr);
93 if (empty($property)) {
97 $assignment = $expr->closest(Filter::isInstanceOf('\Pharborist\Operators\AssignNode'));
99 $setter = $this->rewriteAsSetter($expr, $property, $assignment);
101 $assignment->replaceWith($setter);
105 // Set the type hint, if one is defined.
106 if (isset($this->pluginDefinition['type_hint'])) {
107 $parameter->setTypeHint($this->pluginDefinition['type_hint']);
109 // If the type hint extends FieldableEntityInterface, rewrite any field
110 // lookups (e.g. $node->body[LANGUAGE_NONE][0]['value']).
111 if (in_array('Drupal\Core\Entity\FieldableEntityInterface', class_implements($this->pluginDefinition['type_hint']))) {
112 $filter = new FieldValueFilter($parameter->getName());
114 foreach ($parameter->getFunction()->find($filter) as $lookup) {
115 $lookup->replaceWith(self::rewriteFieldLookup($lookup));
122 * Finds every rewritable expression in the function body.
124 * @param \Pharborist\Functions\ParameterNode $parameter
125 * The parameter on which the rewrite is based.
127 * @return \Pharborist\NodeCollection
129 protected function getExpressions(ParameterNode $parameter) {
130 $filter = Filter::isInstanceOf('\Pharborist\ArrayLookupNode', '\Pharborist\Objects\ObjectPropertyNode');
131 $expressions = new NodeCollection();
135 ->find(Filter::isInstanceOf('\Pharborist\Variables\VariableNode'))
136 ->filter(function(VariableNode $variable) use ($parameter) {
137 return $variable->getName() == $parameter->getName();
139 ->each(function(VariableNode $variable) use ($filter, $expressions) {
140 $root = $variable->furthest($filter);
142 $expressions->add($root);
150 * Returns the property used by a rewritable expression, or NULL if the
151 * property cannot be determined.
153 * @param \Pharborist\ExpressionNode $expr
154 * The rewritable expression.
156 * @return string|NULL
158 protected function getProperty(ExpressionNode $expr) {
159 if ($expr instanceof ObjectPropertyNode) {
160 return $expr->getPropertyName();
162 elseif ($expr instanceof ArrayLookupNode) {
163 $key = $expr->getKey(0);
165 if ($key instanceof StringNode) {
166 return $key->toValue();
172 * Rewrites the given expression as a property getter. Returns NULL if the
173 * expression cannot be rewritten.
175 * @param \Pharborist\ExpressionNode $expr
176 * The expression to rewrite.
177 * @param string $property
178 * The property being used in the expression.
180 * @return \Pharborist\ExpressionNode|NULL
182 public function rewriteAsGetter(ExpressionNode $expr, $property) {
183 if ($expr instanceof ObjectPropertyNode) {
184 // Should be getRootObject() or getLookupRoot().
185 // @see Pharborist issue #191
186 $object = clone $expr->getObject();
188 elseif ($expr instanceof ArrayLookupNode) {
189 $object = clone $expr->getRootArray();
192 if (isset($object) && isset($this->pluginDefinition['properties'][$property]['get'])) {
193 return ObjectMethodCallNode::create($object, $this->pluginDefinition['properties'][$property]['get']);
198 * Rewrites an assignment expression as a property setter. Returns NULL if
199 * the expression cannot be rewritten.
201 * @param \Pharborist\ExpressionNode $expr
202 * The expression to rewrite.
203 * @param string $property
204 * The property being used in the expression.
205 * @param \Pharborist\Operators\AssignNode $assignment
206 * The entire assignment expression being rewritten.
208 * @return \Pharborist\ExpressionNode|NULL
210 public function rewriteAsSetter(ExpressionNode $expr, $property, AssignNode $assignment) {
211 if ($expr instanceof ObjectPropertyNode) {
212 // Should be getRootObject() or getLookupRoot().
213 // @see Pharborist issue #191
214 $object = clone $expr->getObject();
216 elseif ($expr instanceof ArrayLookupNode) {
217 $object = clone $expr->getRootArray();
220 if (isset($object) && isset($this->pluginDefinition['properties'][$property]['set'])) {
221 return ObjectMethodCallNode::create($object, $this->pluginDefinition['properties'][$property]['set'])
222 ->appendArgument(clone $assignment->getRightOperand());
227 * Returns if the parameter is fully reassigned anywhere in the function.
229 * @param \Pharborist\Functions\ParameterNode $parameter
230 * The parameter to check.
234 protected function isReassigned(ParameterNode $parameter) {
235 return (boolean) $parameter
237 ->find(Filter::isInstanceOf('\Pharborist\Variables\VariableNode'))
238 ->filter(function(VariableNode $variable) use ($parameter) {
239 return $variable->getName() == $parameter->getName();
241 ->filter($this->isAssigned)
246 * Rewrites a Drupal 7 field lookup like so:
248 * $node->body[LANGUAGE_NONE][0]['value'] --> $node->body[0]->value
249 * $node->body['fr'][0]['value'] --> $node->getTranslation('fr')->body[0]->value
251 * @param \Pharborist\ArrayLookupNode $node
252 * The original field lookup.
254 * @return \Pharborist\ExpressionNode
256 public static function rewriteFieldLookup(ArrayLookupNode $node) {
257 $keys = $node->getKeys();
258 /** @var \Pharborist\Objects\ObjectPropertyNode $root */
259 $root = $node->getRootArray();
260 $expr = $root->getObject()->getText();
262 if (self::isTranslation($keys[0])) {
263 $expr .= '->getTranslation(' . $keys[0] . ')';
265 $expr .= '->' . $root->getPropertyName() . '[' . $keys[1] . ']';
267 /** @var \Pharborist\Types\StringNode|\Pharborist\Node $column */
268 foreach (array_slice($keys, 2) as $column) {
270 $expr .= $column instanceof StringNode ? $column->toValue() : $column->getText();
273 return Parser::parseExpression($expr);
277 * Checks if a field lookup key is translated. This will be TRUE unless one
278 * of the following conditions applies:
280 * - The key is the Drupal\Core\Language\Language::LANGCODE_NOT_SPECIFIED
282 * - The key is the LANGUAGE_NONE constant from Drupal 7.
283 * - The key is the string 'und'.
290 public static function isTranslation(Node $key) {
291 if ($key instanceof ClassConstantLookupNode) {
292 $constant = $key->getClassName() . '::' . $key->getConstantName();
293 return $constant != '\Drupal\Core\Language\Language::LANGCODE_NOT_SPECIFIED';
295 elseif ($key instanceof ConstantNode) {
296 return $key->getConstantName() != 'LANGUAGE_NONE';
298 elseif ($key instanceof StringNode) {
299 return $key->toValue() != 'und';