type Expression is
( ExpSequence
| ExpOperation
| ExpJump
| ExpIf
| ExpGeneric
| ExpCall
| ExpAtom
| ExpHash
| ExpTuple
| ExpRecover
| ExpTry
| ExpArray
| ExpConsume
| ExpWhile
| ExpRepeat
| ExpFor
| ExpMatch
| ExpDecl
| ExpWith
| ExpFfi
| ExpLambda
| ExpObject )