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, * dangerousChanges: array * } * * @see \Automattic\WooCommerce\Vendor\GraphQL\Tests\Utils\BreakingChangesFinderTest */ class BreakingChangesFinder { public const BREAKING_CHANGE_FIELD_CHANGED_KIND = 'FIELD_CHANGED_KIND'; public const BREAKING_CHANGE_FIELD_REMOVED = 'FIELD_REMOVED'; public const BREAKING_CHANGE_TYPE_CHANGED_KIND = 'TYPE_CHANGED_KIND'; public const BREAKING_CHANGE_TYPE_REMOVED = 'TYPE_REMOVED'; public const BREAKING_CHANGE_TYPE_REMOVED_FROM_UNION = 'TYPE_REMOVED_FROM_UNION'; public const BREAKING_CHANGE_VALUE_REMOVED_FROM_ENUM = 'VALUE_REMOVED_FROM_ENUM'; public const BREAKING_CHANGE_ARG_REMOVED = 'ARG_REMOVED'; public const BREAKING_CHANGE_ARG_CHANGED_KIND = 'ARG_CHANGED_KIND'; public const BREAKING_CHANGE_REQUIRED_ARG_ADDED = 'REQUIRED_ARG_ADDED'; public const BREAKING_CHANGE_REQUIRED_INPUT_FIELD_ADDED = 'REQUIRED_INPUT_FIELD_ADDED'; public const BREAKING_CHANGE_IMPLEMENTED_INTERFACE_REMOVED = 'IMPLEMENTED_INTERFACE_REMOVED'; public const BREAKING_CHANGE_DIRECTIVE_REMOVED = 'DIRECTIVE_REMOVED'; public const BREAKING_CHANGE_DIRECTIVE_ARG_REMOVED = 'DIRECTIVE_ARG_REMOVED'; public const BREAKING_CHANGE_DIRECTIVE_LOCATION_REMOVED = 'DIRECTIVE_LOCATION_REMOVED'; public const BREAKING_CHANGE_REQUIRED_DIRECTIVE_ARG_ADDED = 'REQUIRED_DIRECTIVE_ARG_ADDED'; public const DANGEROUS_CHANGE_ARG_DEFAULT_VALUE_CHANGED = 'ARG_DEFAULT_VALUE_CHANGE'; public const DANGEROUS_CHANGE_VALUE_ADDED_TO_ENUM = 'VALUE_ADDED_TO_ENUM'; public const DANGEROUS_CHANGE_IMPLEMENTED_INTERFACE_ADDED = 'IMPLEMENTED_INTERFACE_ADDED'; public const DANGEROUS_CHANGE_TYPE_ADDED_TO_UNION = 'TYPE_ADDED_TO_UNION'; public const DANGEROUS_CHANGE_OPTIONAL_INPUT_FIELD_ADDED = 'OPTIONAL_INPUT_FIELD_ADDED'; public const DANGEROUS_CHANGE_OPTIONAL_ARG_ADDED = 'OPTIONAL_ARG_ADDED'; /** * Given two schemas, returns an Array containing descriptions of all the types * of breaking changes covered by the other functions down below. * * @throws \TypeError * @throws InvariantViolation * * @return array */ public static function findBreakingChanges(Schema $oldSchema, Schema $newSchema): array { return array_merge( self::findRemovedTypes($oldSchema, $newSchema), self::findTypesThatChangedKind($oldSchema, $newSchema), self::findFieldsThatChangedTypeOnObjectOrInterfaceTypes($oldSchema, $newSchema), self::findFieldsThatChangedTypeOnInputObjectTypes($oldSchema, $newSchema)['breakingChanges'], self::findTypesRemovedFromUnions($oldSchema, $newSchema), self::findValuesRemovedFromEnums($oldSchema, $newSchema), self::findArgChanges($oldSchema, $newSchema)['breakingChanges'], self::findInterfacesRemovedFromObjectTypes($oldSchema, $newSchema), self::findRemovedDirectives($oldSchema, $newSchema), self::findRemovedDirectiveArgs($oldSchema, $newSchema), self::findAddedNonNullDirectiveArgs($oldSchema, $newSchema), self::findRemovedDirectiveLocations($oldSchema, $newSchema) ); } /** * Given two schemas, returns an Array containing descriptions of any breaking * changes in the newSchema related to removing an entire type. * * @throws InvariantViolation * * @return array */ public static function findRemovedTypes( Schema $oldSchema, Schema $newSchema ): array { $oldTypeMap = $oldSchema->getTypeMap(); $newTypeMap = $newSchema->getTypeMap(); $breakingChanges = []; foreach (array_keys($oldTypeMap) as $typeName) { if (! isset($newTypeMap[$typeName])) { $breakingChanges[] = [ 'type' => self::BREAKING_CHANGE_TYPE_REMOVED, 'description' => "{$typeName} was removed.", ]; } } return $breakingChanges; } /** * Given two schemas, returns an Array containing descriptions of any breaking * changes in the newSchema related to changing the type of a type. * * @throws \TypeError * @throws InvariantViolation * * @return array */ public static function findTypesThatChangedKind( Schema $schemaA, Schema $schemaB ): array { $schemaATypeMap = $schemaA->getTypeMap(); $schemaBTypeMap = $schemaB->getTypeMap(); $breakingChanges = []; foreach ($schemaATypeMap as $typeName => $schemaAType) { if (! isset($schemaBTypeMap[$typeName])) { continue; } $schemaBType = $schemaBTypeMap[$typeName]; if ($schemaAType instanceof $schemaBType) { continue; } if ($schemaBType instanceof $schemaAType) { continue; } $schemaATypeKindName = self::typeKindName($schemaAType); $schemaBTypeKindName = self::typeKindName($schemaBType); $breakingChanges[] = [ 'type' => self::BREAKING_CHANGE_TYPE_CHANGED_KIND, 'description' => "{$typeName} changed from {$schemaATypeKindName} to {$schemaBTypeKindName}.", ]; } return $breakingChanges; } /** * @param Type&NamedType $type * * @throws \TypeError */ private static function typeKindName(NamedType $type): string { if ($type instanceof ScalarType) { return 'a Scalar type'; } if ($type instanceof ObjectType) { return 'an Object type'; } if ($type instanceof InterfaceType) { return 'an Interface type'; } if ($type instanceof UnionType) { return 'a Union type'; } if ($type instanceof EnumType) { return 'an Enum type'; } if ($type instanceof InputObjectType) { return 'an Input type'; } throw new \TypeError('Unknown type: ' . $type->name); } /** * @throws InvariantViolation * * @return array */ public static function findFieldsThatChangedTypeOnObjectOrInterfaceTypes( Schema $oldSchema, Schema $newSchema ): array { $oldTypeMap = $oldSchema->getTypeMap(); $newTypeMap = $newSchema->getTypeMap(); $breakingChanges = []; foreach ($oldTypeMap as $typeName => $oldType) { $newType = $newTypeMap[$typeName] ?? null; if ( ! $oldType instanceof ObjectType && ! $oldType instanceof InterfaceType || ! $newType instanceof ObjectType && ! $newType instanceof InterfaceType || ! ($newType instanceof $oldType) ) { continue; } $oldTypeFieldsDef = $oldType->getFields(); $newTypeFieldsDef = $newType->getFields(); foreach ($oldTypeFieldsDef as $fieldName => $fieldDefinition) { // Check if the field is missing on the type in the new schema. if (! isset($newTypeFieldsDef[$fieldName])) { $breakingChanges[] = [ 'type' => self::BREAKING_CHANGE_FIELD_REMOVED, 'description' => "{$typeName}.{$fieldName} was removed.", ]; } else { $oldFieldType = $oldTypeFieldsDef[$fieldName]->getType(); $newFieldType = $newTypeFieldsDef[$fieldName]->getType(); $isSafe = self::isChangeSafeForObjectOrInterfaceField( $oldFieldType, $newFieldType ); if (! $isSafe) { $breakingChanges[] = [ 'type' => self::BREAKING_CHANGE_FIELD_CHANGED_KIND, 'description' => "{$typeName}.{$fieldName} changed type from {$oldFieldType} to {$newFieldType}.", ]; } } } } return $breakingChanges; } private static function isChangeSafeForObjectOrInterfaceField( Type $oldType, Type $newType ): bool { if ($oldType instanceof NamedType) { return // if they're both named types, see if their names are equivalent ($newType instanceof NamedType && $oldType->name === $newType->name) // moving from nullable to non-null of the same underlying type is safe || ($newType instanceof NonNull && self::isChangeSafeForObjectOrInterfaceField($oldType, $newType->getWrappedType())); } if ($oldType instanceof ListOfType) { return // if they're both lists, make sure the underlying types are compatible ($newType instanceof ListOfType && self::isChangeSafeForObjectOrInterfaceField( $oldType->getWrappedType(), $newType->getWrappedType() )) // moving from nullable to non-null of the same underlying type is safe || ($newType instanceof NonNull && self::isChangeSafeForObjectOrInterfaceField($oldType, $newType->getWrappedType())); } if ($oldType instanceof NonNull) { // if they're both non-null, make sure the underlying types are compatible return $newType instanceof NonNull && self::isChangeSafeForObjectOrInterfaceField($oldType->getWrappedType(), $newType->getWrappedType()); } return false; } /** * @throws InvariantViolation * * @return Changes */ public static function findFieldsThatChangedTypeOnInputObjectTypes( Schema $oldSchema, Schema $newSchema ): array { $oldTypeMap = $oldSchema->getTypeMap(); $newTypeMap = $newSchema->getTypeMap(); $breakingChanges = []; $dangerousChanges = []; foreach ($oldTypeMap as $typeName => $oldType) { $newType = $newTypeMap[$typeName] ?? null; if (! ($oldType instanceof InputObjectType) || ! ($newType instanceof InputObjectType)) { continue; } $oldTypeFieldsDef = $oldType->getFields(); $newTypeFieldsDef = $newType->getFields(); foreach (array_keys($oldTypeFieldsDef) as $fieldName) { if (! isset($newTypeFieldsDef[$fieldName])) { $breakingChanges[] = [ 'type' => self::BREAKING_CHANGE_FIELD_REMOVED, 'description' => "{$typeName}.{$fieldName} was removed.", ]; } else { $oldFieldType = $oldTypeFieldsDef[$fieldName]->getType(); $newFieldType = $newTypeFieldsDef[$fieldName]->getType(); $isSafe = self::isChangeSafeForInputObjectFieldOrFieldArg( $oldFieldType, $newFieldType ); if (! $isSafe) { $oldFieldTypeString = $oldFieldType instanceof NamedType ? $oldFieldType->name : $oldFieldType; $newFieldTypeString = $newFieldType instanceof NamedType ? $newFieldType->name : $newFieldType; $breakingChanges[] = [ 'type' => self::BREAKING_CHANGE_FIELD_CHANGED_KIND, 'description' => "{$typeName}.{$fieldName} changed type from {$oldFieldTypeString} to {$newFieldTypeString}.", ]; } } } // Check if a field was added to the input object type foreach ($newTypeFieldsDef as $fieldName => $fieldDef) { if (isset($oldTypeFieldsDef[$fieldName])) { continue; } $newTypeName = $newType->name; if ($fieldDef->isRequired()) { $breakingChanges[] = [ 'type' => self::BREAKING_CHANGE_REQUIRED_INPUT_FIELD_ADDED, 'description' => "A required field {$fieldName} on input type {$newTypeName} was added.", ]; } else { $dangerousChanges[] = [ 'type' => self::DANGEROUS_CHANGE_OPTIONAL_INPUT_FIELD_ADDED, 'description' => "An optional field {$fieldName} on input type {$newTypeName} was added.", ]; } } } return [ 'breakingChanges' => $breakingChanges, 'dangerousChanges' => $dangerousChanges, ]; } /** @throws InvariantViolation */ private static function isChangeSafeForInputObjectFieldOrFieldArg( Type $oldType, Type $newType ): bool { if ($oldType instanceof NamedType) { if (! $newType instanceof NamedType) { return false; } // if they're both named types, see if their names are equivalent return $oldType->name === $newType->name; } if ($oldType instanceof ListOfType) { // if they're both lists, make sure the underlying types are compatible return $newType instanceof ListOfType && self::isChangeSafeForInputObjectFieldOrFieldArg( $oldType->getWrappedType(), $newType->getWrappedType() ); } if ($oldType instanceof NonNull) { return // if they're both non-null, make sure the underlying types are compatible ($newType instanceof NonNull && self::isChangeSafeForInputObjectFieldOrFieldArg( $oldType->getWrappedType(), $newType->getWrappedType() )) // moving from non-null to nullable of the same underlying type is safe || ! ($newType instanceof NonNull) && self::isChangeSafeForInputObjectFieldOrFieldArg($oldType->getWrappedType(), $newType); } return false; } /** * Given two schemas, returns an Array containing descriptions of any breaking * changes in the newSchema related to removing types from a union type. * * @throws InvariantViolation * * @return array */ public static function findTypesRemovedFromUnions( Schema $oldSchema, Schema $newSchema ): array { $oldTypeMap = $oldSchema->getTypeMap(); $newTypeMap = $newSchema->getTypeMap(); $typesRemovedFromUnion = []; foreach ($oldTypeMap as $typeName => $oldType) { $newType = $newTypeMap[$typeName] ?? null; if (! ($oldType instanceof UnionType) || ! ($newType instanceof UnionType)) { continue; } $typeNamesInNewUnion = []; foreach ($newType->getTypes() as $type) { $typeNamesInNewUnion[$type->name] = true; } foreach ($oldType->getTypes() as $type) { if (! isset($typeNamesInNewUnion[$type->name])) { $typesRemovedFromUnion[] = [ 'type' => self::BREAKING_CHANGE_TYPE_REMOVED_FROM_UNION, 'description' => "{$type->name} was removed from union type {$typeName}.", ]; } } } return $typesRemovedFromUnion; } /** * Given two schemas, returns an Array containing descriptions of any breaking * changes in the newSchema related to removing values from an enum type. * * @throws InvariantViolation * * @return array */ public static function findValuesRemovedFromEnums( Schema $oldSchema, Schema $newSchema ): array { $oldTypeMap = $oldSchema->getTypeMap(); $newTypeMap = $newSchema->getTypeMap(); $valuesRemovedFromEnums = []; foreach ($oldTypeMap as $typeName => $oldType) { $newType = $newTypeMap[$typeName] ?? null; if (! ($oldType instanceof EnumType) || ! ($newType instanceof EnumType)) { continue; } $valuesInNewEnum = []; foreach ($newType->getValues() as $value) { $valuesInNewEnum[$value->name] = true; } foreach ($oldType->getValues() as $value) { if (! isset($valuesInNewEnum[$value->name])) { $valuesRemovedFromEnums[] = [ 'type' => self::BREAKING_CHANGE_VALUE_REMOVED_FROM_ENUM, 'description' => "{$value->name} was removed from enum type {$typeName}.", ]; } } } return $valuesRemovedFromEnums; } /** * Given two schemas, returns an Array containing descriptions of any * breaking or dangerous changes in the newSchema related to arguments * (such as removal or change of type of an argument, or a change in an * argument's default value). * * @throws InvariantViolation * * @return Changes */ public static function findArgChanges( Schema $oldSchema, Schema $newSchema ): array { $oldTypeMap = $oldSchema->getTypeMap(); $newTypeMap = $newSchema->getTypeMap(); $breakingChanges = []; $dangerousChanges = []; foreach ($oldTypeMap as $typeName => $oldType) { $newType = $newTypeMap[$typeName] ?? null; if ( ! $oldType instanceof ObjectType && ! $oldType instanceof InterfaceType || ! $newType instanceof ObjectType && ! $newType instanceof InterfaceType || ! ($newType instanceof $oldType) ) { continue; } $oldTypeFields = $oldType->getFields(); $newTypeFields = $newType->getFields(); foreach ($oldTypeFields as $fieldName => $oldField) { if (! isset($newTypeFields[$fieldName])) { continue; } foreach ($oldField->args as $oldArgDef) { $newArgDef = null; foreach ($newTypeFields[$fieldName]->args as $newArg) { if ($newArg->name === $oldArgDef->name) { $newArgDef = $newArg; } } if ($newArgDef !== null) { $isSafe = self::isChangeSafeForInputObjectFieldOrFieldArg( $oldArgDef->getType(), $newArgDef->getType() ); $oldArgType = $oldArgDef->getType(); $oldArgName = $oldArgDef->name; if (! $isSafe) { $newArgType = $newArgDef->getType(); $breakingChanges[] = [ 'type' => self::BREAKING_CHANGE_ARG_CHANGED_KIND, 'description' => "{$typeName}.{$fieldName} arg {$oldArgName} has changed type from {$oldArgType} to {$newArgType}", ]; } elseif ($oldArgDef->defaultValueExists() && $oldArgDef->defaultValue !== $newArgDef->defaultValue) { $dangerousChanges[] = [ 'type' => self::DANGEROUS_CHANGE_ARG_DEFAULT_VALUE_CHANGED, 'description' => "{$typeName}.{$fieldName} arg {$oldArgName} has changed defaultValue", ]; } } else { $breakingChanges[] = [ 'type' => self::BREAKING_CHANGE_ARG_REMOVED, 'description' => "{$typeName}.{$fieldName} arg {$oldArgDef->name} was removed", ]; } // Check if arg was added to the field foreach ($newTypeFields[$fieldName]->args as $newTypeFieldArgDef) { $oldArgDef = null; foreach ($oldTypeFields[$fieldName]->args as $oldArg) { if ($oldArg->name === $newTypeFieldArgDef->name) { $oldArgDef = $oldArg; } } if ($oldArgDef !== null) { continue; } $newTypeName = $newType->name; $newArgName = $newTypeFieldArgDef->name; if ($newTypeFieldArgDef->isRequired()) { $breakingChanges[] = [ 'type' => self::BREAKING_CHANGE_REQUIRED_ARG_ADDED, 'description' => "A required arg {$newArgName} on {$newTypeName}.{$fieldName} was added", ]; } else { $dangerousChanges[] = [ 'type' => self::DANGEROUS_CHANGE_OPTIONAL_ARG_ADDED, 'description' => "An optional arg {$newArgName} on {$newTypeName}.{$fieldName} was added", ]; } } } } } return [ 'breakingChanges' => $breakingChanges, 'dangerousChanges' => $dangerousChanges, ]; } /** * @throws InvariantViolation * * @return array */ public static function findInterfacesRemovedFromObjectTypes( Schema $oldSchema, Schema $newSchema ): array { $oldTypeMap = $oldSchema->getTypeMap(); $newTypeMap = $newSchema->getTypeMap(); $breakingChanges = []; foreach ($oldTypeMap as $typeName => $oldType) { $newType = $newTypeMap[$typeName] ?? null; if (! ($oldType instanceof ImplementingType) || ! ($newType instanceof ImplementingType)) { continue; } $oldInterfaces = $oldType->getInterfaces(); $newInterfaces = $newType->getInterfaces(); foreach ($oldInterfaces as $oldInterface) { $interfaceWasRemoved = true; foreach ($newInterfaces as $newInterface) { if ($oldInterface->name === $newInterface->name) { $interfaceWasRemoved = false; } } if ($interfaceWasRemoved) { $breakingChanges[] = [ 'type' => self::BREAKING_CHANGE_IMPLEMENTED_INTERFACE_REMOVED, 'description' => "{$typeName} no longer implements interface {$oldInterface->name}.", ]; } } } return $breakingChanges; } /** * @throws InvariantViolation * * @return array */ public static function findRemovedDirectives(Schema $oldSchema, Schema $newSchema): array { $removedDirectives = []; $newSchemaDirectiveMap = self::getDirectiveMapForSchema($newSchema); foreach ($oldSchema->getDirectives() as $directive) { if (! isset($newSchemaDirectiveMap[$directive->name])) { $removedDirectives[] = [ 'type' => self::BREAKING_CHANGE_DIRECTIVE_REMOVED, 'description' => "{$directive->name} was removed", ]; } } return $removedDirectives; } /** * @throws InvariantViolation * * @return array */ private static function getDirectiveMapForSchema(Schema $schema): array { $directives = []; foreach ($schema->getDirectives() as $directive) { $directives[$directive->name] = $directive; } return $directives; } /** * @throws InvariantViolation * * @return array */ public static function findRemovedDirectiveArgs(Schema $oldSchema, Schema $newSchema): array { $removedDirectiveArgs = []; $oldSchemaDirectiveMap = self::getDirectiveMapForSchema($oldSchema); foreach ($newSchema->getDirectives() as $newDirective) { if (! isset($oldSchemaDirectiveMap[$newDirective->name])) { continue; } foreach ( self::findRemovedArgsForDirectives( $oldSchemaDirectiveMap[$newDirective->name], $newDirective ) as $arg ) { $removedDirectiveArgs[] = [ 'type' => self::BREAKING_CHANGE_DIRECTIVE_ARG_REMOVED, 'description' => "{$arg->name} was removed from {$newDirective->name}", ]; } } return $removedDirectiveArgs; } /** @return array */ public static function findRemovedArgsForDirectives(Directive $oldDirective, Directive $newDirective): array { $removedArgs = []; $newArgMap = self::getArgumentMapForDirective($newDirective); foreach ($oldDirective->args as $arg) { if (! isset($newArgMap[$arg->name])) { $removedArgs[] = $arg; } } return $removedArgs; } /** @return array */ private static function getArgumentMapForDirective(Directive $directive): array { $args = []; foreach ($directive->args as $arg) { $args[$arg->name] = $arg; } return $args; } /** * @throws InvariantViolation * * @return array */ public static function findAddedNonNullDirectiveArgs(Schema $oldSchema, Schema $newSchema): array { $addedNonNullableArgs = []; $oldSchemaDirectiveMap = self::getDirectiveMapForSchema($oldSchema); foreach ($newSchema->getDirectives() as $newDirective) { if (! isset($oldSchemaDirectiveMap[$newDirective->name])) { continue; } foreach ( self::findAddedArgsForDirective( $oldSchemaDirectiveMap[$newDirective->name], $newDirective ) as $arg ) { if ($arg->isRequired()) { $addedNonNullableArgs[] = [ 'type' => self::BREAKING_CHANGE_REQUIRED_DIRECTIVE_ARG_ADDED, 'description' => "A required arg {$arg->name} on directive {$newDirective->name} was added", ]; } } } return $addedNonNullableArgs; } /** @return array */ public static function findAddedArgsForDirective(Directive $oldDirective, Directive $newDirective): array { $addedArgs = []; $oldArgMap = self::getArgumentMapForDirective($oldDirective); foreach ($newDirective->args as $arg) { if (! isset($oldArgMap[$arg->name])) { $addedArgs[] = $arg; } } return $addedArgs; } /** * @throws InvariantViolation * * @return array */ public static function findRemovedDirectiveLocations(Schema $oldSchema, Schema $newSchema): array { $removedLocations = []; $oldSchemaDirectiveMap = self::getDirectiveMapForSchema($oldSchema); foreach ($newSchema->getDirectives() as $newDirective) { if (! isset($oldSchemaDirectiveMap[$newDirective->name])) { continue; } foreach ( self::findRemovedLocationsForDirective( $oldSchemaDirectiveMap[$newDirective->name], $newDirective ) as $location ) { $removedLocations[] = [ 'type' => self::BREAKING_CHANGE_DIRECTIVE_LOCATION_REMOVED, 'description' => "{$location} was removed from {$newDirective->name}", ]; } } return $removedLocations; } /** @return array */ public static function findRemovedLocationsForDirective(Directive $oldDirective, Directive $newDirective): array { $removedLocations = []; $newLocationSet = array_flip($newDirective->locations); foreach ($oldDirective->locations as $oldLocation) { if (! array_key_exists($oldLocation, $newLocationSet)) { $removedLocations[] = $oldLocation; } } return $removedLocations; } /** * Given two schemas, returns an Array containing descriptions of all the types * of potentially dangerous changes covered by the other functions down below. * * @throws InvariantViolation * * @return array */ public static function findDangerousChanges(Schema $oldSchema, Schema $newSchema): array { return array_merge( self::findArgChanges($oldSchema, $newSchema)['dangerousChanges'], self::findValuesAddedToEnums($oldSchema, $newSchema), self::findInterfacesAddedToObjectTypes($oldSchema, $newSchema), self::findTypesAddedToUnions($oldSchema, $newSchema), self::findFieldsThatChangedTypeOnInputObjectTypes($oldSchema, $newSchema)['dangerousChanges'] ); } /** * Given two schemas, returns an Array containing descriptions of any dangerous * changes in the newSchema related to adding values to an enum type. * * @throws InvariantViolation * * @return array */ public static function findValuesAddedToEnums( Schema $oldSchema, Schema $newSchema ): array { $oldTypeMap = $oldSchema->getTypeMap(); $newTypeMap = $newSchema->getTypeMap(); $valuesAddedToEnums = []; foreach ($oldTypeMap as $typeName => $oldType) { $newType = $newTypeMap[$typeName] ?? null; if (! ($oldType instanceof EnumType) || ! ($newType instanceof EnumType)) { continue; } $valuesInOldEnum = []; foreach ($oldType->getValues() as $value) { $valuesInOldEnum[$value->name] = true; } foreach ($newType->getValues() as $value) { if (! isset($valuesInOldEnum[$value->name])) { $valuesAddedToEnums[] = [ 'type' => self::DANGEROUS_CHANGE_VALUE_ADDED_TO_ENUM, 'description' => "{$value->name} was added to enum type {$typeName}.", ]; } } } return $valuesAddedToEnums; } /** * @throws InvariantViolation * * @return array */ public static function findInterfacesAddedToObjectTypes( Schema $oldSchema, Schema $newSchema ): array { $oldTypeMap = $oldSchema->getTypeMap(); $newTypeMap = $newSchema->getTypeMap(); $interfacesAddedToObjectTypes = []; foreach ($newTypeMap as $typeName => $newType) { $oldType = $oldTypeMap[$typeName] ?? null; if ( ! $oldType instanceof ObjectType && ! $oldType instanceof InterfaceType || ! $newType instanceof ObjectType && ! $newType instanceof InterfaceType ) { continue; } $oldInterfaces = $oldType->getInterfaces(); $newInterfaces = $newType->getInterfaces(); foreach ($newInterfaces as $newInterface) { $interfaceWasAdded = true; foreach ($oldInterfaces as $oldInterface) { if ($oldInterface->name === $newInterface->name) { $interfaceWasAdded = false; } } if ($interfaceWasAdded) { $interfacesAddedToObjectTypes[] = [ 'type' => self::DANGEROUS_CHANGE_IMPLEMENTED_INTERFACE_ADDED, 'description' => "{$newInterface->name} added to interfaces implemented by {$typeName}.", ]; } } } return $interfacesAddedToObjectTypes; } /** * Given two schemas, returns an Array containing descriptions of any dangerous * changes in the newSchema related to adding types to a union type. * * @throws InvariantViolation * * @return array */ public static function findTypesAddedToUnions( Schema $oldSchema, Schema $newSchema ): array { $oldTypeMap = $oldSchema->getTypeMap(); $newTypeMap = $newSchema->getTypeMap(); $typesAddedToUnion = []; foreach ($newTypeMap as $typeName => $newType) { $oldType = $oldTypeMap[$typeName] ?? null; if (! ($oldType instanceof UnionType) || ! ($newType instanceof UnionType)) { continue; } $typeNamesInOldUnion = []; foreach ($oldType->getTypes() as $type) { $typeNamesInOldUnion[$type->name] = true; } foreach ($newType->getTypes() as $type) { if (! isset($typeNamesInOldUnion[$type->name])) { $typesAddedToUnion[] = [ 'type' => self::DANGEROUS_CHANGE_TYPE_ADDED_TO_UNION, 'description' => "{$type->name} was added to union type {$typeName}.", ]; } } } return $typesAddedToUnion; } }