Creates a new visitor instance which maintains a provided TypeInfo instance
along with visiting visitor.
|
static public visitWithTypeInfo ( |
||
| $typeInfo | ||
/**
* @it maintains type info during edit
*/
public function testMaintainsTypeInfoDuringEdit()
{
$visited = [];
$typeInfo = new TypeInfo(TestCase::getDefaultSchema());
$ast = Parser::parse('{ human(id: 4) { name, pets }, alien }');
$editedAst = Visitor::visit($ast, Visitor::visitWithTypeInfo($typeInfo, ['enter' => function ($node) use($typeInfo, &$visited) {
$parentType = $typeInfo->getParentType();
$type = $typeInfo->getType();
$inputType = $typeInfo->getInputType();
$visited[] = ['enter', $node->kind, $node->kind === 'Name' ? $node->value : null, $parentType ? (string) $parentType : null, $type ? (string) $type : null, $inputType ? (string) $inputType : null];
// Make a query valid by adding missing selection sets.
if ($node->kind === 'Field' && !$node->selectionSet && Type::isCompositeType(Type::getNamedType($type))) {
return new FieldNode(['alias' => $node->alias, 'name' => $node->name, 'arguments' => $node->arguments, 'directives' => $node->directives, 'selectionSet' => new SelectionSetNode(['kind' => 'SelectionSet', 'selections' => [new FieldNode(['name' => new NameNode(['value' => '__typename'])])]])]);
}
}, 'leave' => function ($node) use($typeInfo, &$visited) {
$parentType = $typeInfo->getParentType();
$type = $typeInfo->getType();
$inputType = $typeInfo->getInputType();
$visited[] = ['leave', $node->kind, $node->kind === 'Name' ? $node->value : null, $parentType ? (string) $parentType : null, $type ? (string) $type : null, $inputType ? (string) $inputType : null];
}]));
$this->assertEquals(Printer::doPrint(Parser::parse('{ human(id: 4) { name, pets }, alien }')), Printer::doPrint($ast));
$this->assertEquals(Printer::doPrint(Parser::parse('{ human(id: 4) { name, pets { __typename } }, alien { __typename } }')), Printer::doPrint($editedAst));
$this->assertEquals([['enter', 'Document', null, null, null, null], ['enter', 'OperationDefinition', null, null, 'QueryRoot', null], ['enter', 'SelectionSet', null, 'QueryRoot', 'QueryRoot', null], ['enter', 'Field', null, 'QueryRoot', 'Human', null], ['enter', 'Name', 'human', 'QueryRoot', 'Human', null], ['leave', 'Name', 'human', 'QueryRoot', 'Human', null], ['enter', 'Argument', null, 'QueryRoot', 'Human', 'ID'], ['enter', 'Name', 'id', 'QueryRoot', 'Human', 'ID'], ['leave', 'Name', 'id', 'QueryRoot', 'Human', 'ID'], ['enter', 'IntValue', null, 'QueryRoot', 'Human', 'ID'], ['leave', 'IntValue', null, 'QueryRoot', 'Human', 'ID'], ['leave', 'Argument', null, 'QueryRoot', 'Human', 'ID'], ['enter', 'SelectionSet', null, 'Human', 'Human', null], ['enter', 'Field', null, 'Human', 'String', null], ['enter', 'Name', 'name', 'Human', 'String', null], ['leave', 'Name', 'name', 'Human', 'String', null], ['leave', 'Field', null, 'Human', 'String', null], ['enter', 'Field', null, 'Human', '[Pet]', null], ['enter', 'Name', 'pets', 'Human', '[Pet]', null], ['leave', 'Name', 'pets', 'Human', '[Pet]', null], ['enter', 'SelectionSet', null, 'Pet', '[Pet]', null], ['enter', 'Field', null, 'Pet', 'String!', null], ['enter', 'Name', '__typename', 'Pet', 'String!', null], ['leave', 'Name', '__typename', 'Pet', 'String!', null], ['leave', 'Field', null, 'Pet', 'String!', null], ['leave', 'SelectionSet', null, 'Pet', '[Pet]', null], ['leave', 'Field', null, 'Human', '[Pet]', null], ['leave', 'SelectionSet', null, 'Human', 'Human', null], ['leave', 'Field', null, 'QueryRoot', 'Human', null], ['enter', 'Field', null, 'QueryRoot', 'Alien', null], ['enter', 'Name', 'alien', 'QueryRoot', 'Alien', null], ['leave', 'Name', 'alien', 'QueryRoot', 'Alien', null], ['enter', 'SelectionSet', null, 'Alien', 'Alien', null], ['enter', 'Field', null, 'Alien', 'String!', null], ['enter', 'Name', '__typename', 'Alien', 'String!', null], ['leave', 'Name', '__typename', 'Alien', 'String!', null], ['leave', 'Field', null, 'Alien', 'String!', null], ['leave', 'SelectionSet', null, 'Alien', 'Alien', null], ['leave', 'Field', null, 'QueryRoot', 'Alien', null], ['leave', 'SelectionSet', null, 'QueryRoot', 'QueryRoot', null], ['leave', 'OperationDefinition', null, null, 'QueryRoot', null], ['leave', 'Document', null, null, null, null]], $visited);
}
/**
* This uses a specialized visitor which runs multiple visitors in parallel,
* while maintaining the visitor skip and break API.
*
* @param Schema $schema
* @param TypeInfo $typeInfo
* @param DocumentNode $documentNode
* @param array $rules
* @return array
*/
public static function visitUsingRules(Schema $schema, TypeInfo $typeInfo, DocumentNode $documentNode, array $rules)
{
$context = new ValidationContext($schema, $documentNode, $typeInfo);
$visitors = [];
foreach ($rules as $rule) {
$visitors[] = $rule($context);
}
Visitor::visit($documentNode, Visitor::visitWithTypeInfo($typeInfo, Visitor::visitInParallel($visitors)));
return $context->getErrors();
}
/**
* @param HasSelectionSet $node
* @return array List of ['node' => Variable, 'type' => ?InputObjectType]
*/
function getVariableUsages(HasSelectionSet $node)
{
$usages = isset($this->variableUsages[$node]) ? $this->variableUsages[$node] : null;
if (!$usages) {
$newUsages = [];
$typeInfo = new TypeInfo($this->schema);
Visitor::visit($node, Visitor::visitWithTypeInfo($typeInfo, [Node::VARIABLE_DEFINITION => function () {
return false;
}, Node::VARIABLE => function (Variable $variable) use(&$newUsages, $typeInfo) {
$newUsages[] = ['node' => $variable, 'type' => $typeInfo->getInputType()];
}]));
$usages = $newUsages;
$this->variableUsages[$node] = $usages;
}
return $usages;
}
