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Text File | 1997-08-18 | 584 b | 18 lines | [TEXT/R*ch] |
- (* Data.sml -- the abstract syntax datatype *)
-
- datatype baseval =
- Int of int
-
- datatype sourceexpr =
- AppS of sourceexpr * sourceexpr
- | VarS of string
- | LamS of string * sourceexpr
- | LetS of (string * sourceexpr) list * sourceexpr
- | LetrecS of (string * sourceexpr) list * sourceexpr
- | ConS of int * sourceexpr list
- | CaseS of sourceexpr * alt list
- | CstS of baseval
- | Op2S of (baseval * baseval -> baseval) * sourceexpr * sourceexpr
- | IfS of sourceexpr * sourceexpr * sourceexpr
- withtype alt = int * string list * sourceexpr
-