diff options
Diffstat (limited to 'expression.ml')
-rwxr-xr-x | expression.ml | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/expression.ml b/expression.ml deleted file mode 100755 index 20227ad..0000000 --- a/expression.ml +++ /dev/null @@ -1,114 +0,0 @@ -module Tuple2 = Tools.Tuple2
-
-let u = UTF8.from_utf8string
-
-type t =
- | Basic: 'a ScTypes.types -> t (** A direct type *)
- | Formula: formula -> t (** A formula *)
- | Undefined: t (** The content is not defined *)
-
-and formula =
- | Expression of ScTypes.expression (** A valid expression *)
- | Error of int * UTF8.t (** When the expression cannot be parsed *)
-
-
-let is_defined = function
- | Undefined -> false
- | _ -> true
-
-let load content = begin
- let content = UTF8.to_utf8string content in
- if String.length content > 0 then (
- if content.[0] = '=' then (
- (* If the string start with a '=', load it as a formula *)
- Formula (
- try
- Expression (
- Lexing.from_string content
- |> ExpressionParser.value ExpressionLexer.read)
- with _ -> Error (1, UTF8.from_utf8string content)
- )
- ) else (
- (* First try to load the data with basic types, and fallback with string *)
- let content' =
- try String.sub content 0 (String.index content '\000')
- with Not_found -> content in
- try
- let ScTypes.Result r =
- ExpressionParser.content ExpressionLexer.read
- @@ Lexing.from_string content' in
- Basic r
- with _ -> Basic (ScTypes.string (UTF8.from_utf8string content'))
- )
- ) else (
- (* If the string in empty, build an undefined value *)
- Undefined
- )
-end
-
-
-let load_expr expr = expr
-
-
-(** Extract the parameters to give to a function.
- return an Error if one of them is an error
- *)
-let eval expr sources = begin
-
- let eval_exp f = Evaluator.eval sources f in
-
- begin try match expr with
- | Basic value -> ScTypes.Result value
- | Formula (Expression f) -> eval_exp f
- | Formula (Error (i, s)) -> ScTypes.Error ScTypes.Error
- | Undefined -> ScTypes.Error Not_found
- with ex -> ScTypes.Error ex
- end
-
-end
-
-let collect_sources expr = begin
- let rec collect refs = function
- | ScTypes.Ref r ->
- begin match ScTypes.Refs.collect r with
- | ScTypes.Refs.Single r -> Cell.Set.add r refs
- | ScTypes.Refs.Array1 a1 ->
- List.fold_left (fun set elt -> Cell.Set.add elt set) refs a1
- | ScTypes.Refs.Array2 a2 ->
- List.fold_left (List.fold_left (fun set elt -> Cell.Set.add elt set)) refs a2
- end
- | ScTypes.Call (ident, params) -> List.fold_left collect refs params
- | ScTypes.Expression f -> collect refs f
- | _ -> refs
- in match expr with
- | Formula (Expression f) -> collect Cell.Set.empty f
- | _ -> Cell.Set.empty
-end
-
-let show e =
- let buffer = UTF8.Buffer.create 16 in
- begin match e with
- | Formula (Expression f) ->
- UTF8.Buffer.add_char buffer '=';
- ScTypes.show_expr buffer f
- | Basic b -> ScTypes.Type.show_full buffer b
- | Formula (Error (i,s)) -> UTF8.Buffer.add_string buffer s
- | Undefined -> ()
- end;
- UTF8.Buffer.contents buffer
-
-let shift vector =
-
- let rec shift_exp: ScTypes.expression -> ScTypes.expression = function
- | ScTypes.Value v -> ScTypes.Value v
- | ScTypes.Call (ident, params) -> ScTypes.Call (ident, List.map shift_exp params)
- | ScTypes.Ref r -> ScTypes.Ref (ScTypes.Refs.shift vector r)
- | ScTypes.Expression expr -> ScTypes.Expression (shift_exp expr)
-
- in function
- | Formula (Expression f) -> Formula (Expression (shift_exp f))
- | other -> other
-
-let (=) t1 t2 = match t1, t2 with
- | Basic b1, Basic b2 -> ScTypes.Type.(=) b1 b2
- | o1, o2 -> Pervasives.(=) o1 o2
|