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module AstUtils
open Ast
let BinaryAnd (lhs: Expr) (rhs: Expr) =
match lhs, rhs with
| IdLiteral("true"), _ -> rhs
| IdLiteral("false"), _ -> IdLiteral("false")
| _, IdLiteral("true") -> lhs
| _, IdLiteral("false") -> IdLiteral("false")
| _, _ -> BinaryExpr(30, "&&", lhs, rhs)
let BinaryOr (lhs: Expr) (rhs: Expr) =
match lhs, rhs with
| IdLiteral("true"), _ -> IdLiteral("true")
| IdLiteral("false"), _ -> rhs
| _, IdLiteral("true") -> IdLiteral("true")
| _, IdLiteral("false") -> lhs
| _, _ -> BinaryExpr(30, "||", lhs, rhs)
let BinaryImplies lhs rhs = BinaryExpr(20, "==>", lhs, rhs)
let BinaryNeq lhs rhs = BinaryExpr(40, "!=", lhs, rhs)
let TrueLiteral = IdLiteral("true")
let FalseLiteral = IdLiteral("false")
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