init initNixExprHelpers

Pos | string int int | Pos |
NoPos | | Pos |

Function | ATermList Expr Pos | Expr |
Function1 | string Expr Pos | Expr |
Assert | Expr Expr Pos | Expr |
With | Expr Expr Pos | Expr |
If | Expr Expr Expr | Expr |
OpNot | Expr | Expr |
OpEq | Expr Expr | Expr |
OpNEq | Expr Expr | Expr |
OpAnd | Expr Expr | Expr |
OpOr | Expr Expr | Expr |
OpImpl | Expr Expr | Expr |
OpUpdate | Expr Expr | Expr |
SubPath | Expr Expr | Expr |
OpHasAttr | Expr string | Expr |
OpPlus | Expr Expr | Expr |
OpConcat | Expr Expr | Expr |
Call | Expr Expr | Expr |
Select | Expr string | Expr |
Var | string | Expr |
Int | int | Expr |
Str | string | Expr |
Path | string | Expr |
Uri | string | Expr |
List | ATermList | Expr |
BlackHole | | Expr |
Undefined | | Expr |
PrimOp | int ATermBlob ATermList | Expr |
Attrs | ATermList | Expr |
Closed | Expr | Expr |
Rec | ATermList ATermList | Expr |
Bool | ATerm | Expr |
Null | | Expr |

Bind | string Expr Pos | ATerm |
Bind | string Expr | ATerm | Bind2
Inherit | Expr ATermList Pos | ATerm |

Scope | | Expr |

NoDefFormal | string | ATerm |
DefFormal | string Expr | ATerm |

True | | ATerm |
False | | ATerm |

PrimOpDef | int ATermBlob | ATerm |

AttrRHS | Expr Pos | ATerm |

eTrue = makeBool(makeTrue())
eFalse = makeBool(makeFalse())
