public static function findTypesRemovedFromUnions(
        Schema $oldSchema,
        Schema $newSchema
    ) {
        $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])) {
                    continue;
                }

                $typesRemovedFromUnion[] = [
                    'type'        => self::BREAKING_CHANGE_TYPE_REMOVED_FROM_UNION,
                    'description' => sprintf('%s was removed from union type %s.', $type->name, $typeName),
                ];
            }
        }

        return $typesRemovedFromUnion;
    }
public static function findTypesRemovedFromUnions(
        Schema $oldSchema,
        Schema $newSchema
    ) {
        $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])) {
                    continue;
                }

                $typesRemovedFromUnion[] = [
                    'type'        => self::BREAKING_CHANGE_TYPE_REMOVED_FROM_UNION,
                    'description' => sprintf('%s was removed from union type %s.', $type->name, $typeName),
                ];
            }
        }

        return $typesRemovedFromUnion;
    }
public static function findTypesRemovedFromUnions ( Schema $ oldSchema , Schema $ newSchema ) { $ 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 ] ) ) { continue ; } $ typesRemovedFromUnion [ ] = [ 'type' => self :: BREAKING_CHANGE_TYPE_REMOVED_FROM_UNION , 'description' => sprintf ( '%s was removed from union type %s.' , $ type -> name , $ typeName ) , ] ; } } return $ typesRemovedFromUnion ; }
Given two schemas, returns an Array containing descriptions of any breaking
changes in the newSchema related to removing types from a union type.

@return string[][]
Given two schemas returns an Array containing descriptions of any breaking changes in the newSchema related to removing types from a union type .