-- Copyright (c) 2017 Uber Technologies, Inc. -- -- Permission is hereby granted, free of charge, to any person obtaining a copy -- of this software and associated documentation files (the "Software"), to deal -- in the Software without restriction, including without limitation the rights -- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -- copies of the Software, and to permit persons to whom the Software is -- furnished to do so, subject to the following conditions: -- -- The above copyright notice and this permission notice shall be included in -- all copies or substantial portions of the Software. -- -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -- THE SOFTWARE. module Database.Sql.Hive.Parser.Internal where import qualified Text.Parsec as P import Database.Sql.Hive.Token import Database.Sql.Position import Control.Monad.Reader import Data.Text.Lazy (Text) import Data.Set (Set) type ScopeTableRef = Text data ParserScope = ParserScope { selectTableAliases :: Maybe (Set ScopeTableRef) } deriving (Eq, Ord, Show) type Parser = P.ParsecT [(Token, Position, Position)] Integer (Reader ParserScope) getNextCounter :: Parser Integer getNextCounter = P.modifyState (+1) >> P.getState