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<?php
namespace GraphQL\Validator\Rules;
use GraphQL\Error\Error;
use GraphQL\Language\AST\DirectiveNode;
use GraphQL\Language\AST\FieldNode;
use GraphQL\Language\AST\NodeKind;
use GraphQL\Language\Visitor;
use GraphQL\Type\Definition\NonNull;
use GraphQL\Validator\ValidationContext;
class ProvidedNonNullArguments extends AbstractValidationRule
{
static function missingFieldArgMessage($fieldName, $argName, $type)
{
return "Field \"$fieldName\" argument \"$argName\" of type \"$type\" is required but not provided.";
}
static function missingDirectiveArgMessage($directiveName, $argName, $type)
{
return "Directive \"@$directiveName\" argument \"$argName\" of type \"$type\" is required but not provided.";
}
public function getVisitor(ValidationContext $context)
{
return [
NodeKind::FIELD => [
'leave' => function(FieldNode $fieldNode) use ($context) {
$fieldDef = $context->getFieldDef();
if (!$fieldDef) {
return Visitor::skipNode();
}
$argNodes = $fieldNode->arguments ?: [];
$argNodeMap = [];
foreach ($argNodes as $argNode) {
$argNodeMap[$argNode->name->value] = $argNodes;
}
foreach ($fieldDef->args as $argDef) {
$argNode = isset($argNodeMap[$argDef->name]) ? $argNodeMap[$argDef->name] : null;
if (!$argNode && $argDef->getType() instanceof NonNull) {
$context->reportError(new Error(
self::missingFieldArgMessage($fieldNode->name->value, $argDef->name, $argDef->getType()),
[$fieldNode]
));
}
}
}
],
NodeKind::DIRECTIVE => [
'leave' => function(DirectiveNode $directiveNode) use ($context) {
$directiveDef = $context->getDirective();
if (!$directiveDef) {
return Visitor::skipNode();
}
$argNodes = $directiveNode->arguments ?: [];
$argNodeMap = [];
foreach ($argNodes as $argNode) {
$argNodeMap[$argNode->name->value] = $argNodes;
}
foreach ($directiveDef->args as $argDef) {
$argNode = isset($argNodeMap[$argDef->name]) ? $argNodeMap[$argDef->name] : null;
if (!$argNode && $argDef->getType() instanceof NonNull) {
$context->reportError(new Error(
self::missingDirectiveArgMessage($directiveNode->name->value, $argDef->name, $argDef->getType()),
[$directiveNode]
));
}
}
}
]
];
}
}