Initial work for the ReasonLIGO pretty printer.
This commit is contained in:
Sander Spies
parent
cade57a47c
commit
e9f5c3e1ae
@ -203,7 +203,7 @@ let pretty_print_cameligo source =
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let pretty_print_reasonligo source =
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let%bind ast = Parser.Reasonligo.parse_file source in
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let doc = Parser_cameligo.Pretty.make ast in (* TODO *)
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let doc = Parser_reasonligo.Pretty.make ast in
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let buffer = Buffer.create 131 in
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let width =
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match Terminal_size.get_columns () with
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@ -8,7 +8,7 @@ module Region = Simple_utils.Region
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module ParErr = Parser_reasonligo.ParErr
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module SyntaxError = Parser_reasonligo.SyntaxError
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module SSet = Set.Make (String)
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module Pretty = Parser_cameligo.Pretty
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module Pretty = Parser_reasonligo.Pretty
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(* Mock IOs TODO: Fill them with CLI options *)
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@ -901,7 +901,7 @@ update_record:
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lbrace = $1;
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record = $3;
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kwd_with = $4;
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updates = {value = {compound = Braces($1,$6);
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updates = {value = {compound = Braces(Region.ghost, Region.ghost);
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ne_elements;
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terminator};
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region = cover $4 $6};
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481
src/passes/1-parser/reasonligo/Pretty.ml
Normal file
481
src/passes/1-parser/reasonligo/Pretty.ml
Normal file
@ -0,0 +1,481 @@
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[@@@warning "-42"]
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open AST
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module Region = Simple_utils.Region
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open! Region
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open! PPrint
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(*let paragraph (s : string) = flow (break 1) (words s)*)
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let rec make ast =
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let app decl = group (pp_declaration decl) in
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separate_map (hardline ^^ hardline) app (Utils.nseq_to_list ast.decl)
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(* and indent_x = *)
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and pp_declaration = function
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Let decl -> pp_let_decl decl
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| TypeDecl decl -> pp_type_decl decl
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and pp_let_decl = function
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| {value = (_,rec_opt, binding, attr); _} ->
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let let_str =
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match rec_opt with
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None -> "let "
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| Some _ -> "let rec " in
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let bindings = pp_let_binding let_str binding
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and attr = pp_attributes attr
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in group (attr ^^ bindings ^^ string ";")
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and pp_attributes = function
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[] -> empty
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| attr ->
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let make s = string "[@" ^^ string s.value ^^ string "]" in
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group (break 0 ^^ separate_map (break 0) make attr) ^^ hardline
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and pp_ident {value; _} = string value
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and pp_string s = string "\"" ^^ pp_ident s ^^ string "\""
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and pp_verbatim s = string "{|" ^^ pp_ident s ^^ string "|}"
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and pp_let_binding let_ (binding : let_binding) =
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let {binders; lhs_type; let_rhs; _} = binding in
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let patterns = Utils.nseq_to_list binders in
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let patterns = group (separate_map (break 0) pp_pattern patterns) in
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let lhs =
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string let_ ^^
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match lhs_type with
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None -> patterns ^^ string " = "
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| Some (_,e) ->
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patterns ^^ group (break 0 ^^ string ": " ^^ pp_type_expr e ^^ string " = ")
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in
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match let_rhs with
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(* | EFun { } -> *)
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| e ->
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let rhs = pp_expr e
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in prefix 2 0 lhs rhs
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and pp_pattern = function
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PConstr p -> pp_pconstr p
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| PUnit _ -> string "()"
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| PFalse _ -> string "false"
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| PTrue _ -> string "true"
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| PVar v -> pp_ident v
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| PInt i -> pp_int i
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| PNat n -> pp_nat n
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| PBytes b -> pp_bytes b
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| PString s -> pp_string s
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| PVerbatim s -> pp_verbatim s
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| PWild _ -> string "_"
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| PList l -> pp_plist l
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| PTuple t -> pp_ptuple t
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| PPar p -> pp_ppar p
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| PRecord r -> pp_precord r
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| PTyped t -> pp_ptyped t
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and pp_pconstr = function
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PNone _ -> string "None"
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| PSomeApp p -> pp_patt_some p
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| PConstrApp a -> pp_patt_c_app a
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and pp_patt_c_app {value; _} =
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match value with
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constr, None -> pp_ident constr
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| constr, Some pat ->
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prefix 2 0 (pp_ident constr) (pp_pattern pat)
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and pp_patt_some {value; _} =
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prefix 2 0 (string "Some") (pp_pattern (snd value))
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and pp_int {value; _} =
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string (Z.to_string (snd value))
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and pp_nat {value; _} =
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string (Z.to_string (snd value) ^ "n")
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and pp_bytes {value; _} =
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string ("0x" ^ Hex.show (snd value))
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and pp_ppar {value; _} =
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nest 1 (pp_pattern value.inside)
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and pp_plist = function
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PListComp cmp -> pp_list_comp cmp
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| PCons cons -> pp_cons cons
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and pp_list_comp e = group (pp_injection pp_pattern e)
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and pp_cons {value; _} =
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let patt1, _, patt2 = value in
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string "[" ^^ (pp_pattern patt1 ^^ string ", ") ^^ group ( break 0 ^^ string "..." ^^ pp_pattern patt2) ^^ string "]"
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and pp_ptuple {value; _} =
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let head, tail = value in
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let rec app = function
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[] -> empty
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| [p] -> group (break 1 ^^ pp_pattern p)
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| p::items ->
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group (break 1 ^^ pp_pattern p ^^ string ",") ^^ app items
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in if tail = []
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then string "(" ^^ pp_pattern head ^^ string ")"
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else string "(" ^^ pp_pattern head ^^ string "," ^^ app (List.map snd tail) ^^ string ")"
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and pp_precord fields = pp_ne_injection pp_field_pattern fields
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and pp_field_pattern {value; _} =
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let {field_name; pattern; _} = value in
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prefix 2 1 (pp_ident field_name ^^ string " =") (pp_pattern pattern)
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and pp_ptyped {value; _} =
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let {pattern; type_expr; _} = value in
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group (pp_pattern pattern ^^ string ":" ^/^ pp_type_expr type_expr)
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and pp_type_decl decl =
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let {name; type_expr; _} = decl.value in
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string "type " ^^ string name.value ^^ string " = "
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^^ group (pp_type_expr type_expr) ^^ string ";"
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and pp_expr = function
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ECase e -> pp_case_expr e
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| ECond e -> group (pp_cond_expr e)
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| EAnnot e -> pp_annot_expr e
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| ELogic e -> pp_logic_expr e
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| EArith e -> group (pp_arith_expr e)
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| EString e -> pp_string_expr e
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| EList e -> group (pp_list_expr e)
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| EConstr e -> pp_constr_expr e
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| ERecord e -> pp_record_expr e
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| EProj e -> pp_projection e
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| EUpdate e -> pp_update e
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| EVar v -> pp_ident v
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| ECall e -> pp_call_expr e
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| EBytes e -> pp_bytes e
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| EUnit _ -> string "()"
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| ETuple e -> pp_tuple_expr e
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| EPar e -> pp_par_expr e
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| ELetIn e -> pp_let_in e
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| EFun e -> pp_fun e
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| ESeq e -> pp_seq e
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and pp_case_expr {value; _} =
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let {expr; cases; _} = value in
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group (string "switch" ^^ string "(" ^^ pp_expr expr ^^ (string ") " ^^ string "{")
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^^ (pp_cases cases) ^^ hardline ^^ string "}" )
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and pp_cases {value; _} =
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let head, tail = value in
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(* let head = pp_clause head in *)
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(* let head = if tail = [] then head
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else string "| " ^^ head in *)
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let rest = List.map snd tail in
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let app clause = break 1 ^^ string "| " ^^ pp_clause clause
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in concat_map app (head :: rest)
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and pp_clause {value; _} =
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let {pattern; rhs; _} = value in
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prefix 4 1 (pp_pattern pattern ^^ string " =>") (pp_expr rhs)
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and pp_cond_expr {value; _} =
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let {test; ifso; kwd_else; ifnot; _} = value in
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let if_then =
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string "if" ^^ string "(" ^^ pp_expr test ^^ string ")" ^^ string " {" ^^ hardline
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^^ group (nest 2 (break 2 ^^ pp_expr ifso)) ^^ hardline ^^ string "}" in
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if kwd_else#is_ghost then
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if_then
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else
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if_then
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^^ string " else" ^^ string " {" ^^ hardline ^^ group (nest 2 (break 2 ^^ pp_expr ifnot)) ^^ hardline ^^ string "}"
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and pp_annot_expr {value; _} =
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let expr, _, type_expr = value.inside in
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group (nest 1 (pp_expr expr ^/^ string ": "
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^^ pp_type_expr type_expr))
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and pp_logic_expr = function
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BoolExpr e -> pp_bool_expr e
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| CompExpr e -> pp_comp_expr e
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and pp_bool_expr = function
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Or e -> pp_bin_op "||" e
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| And e -> pp_bin_op "&&" e
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| Not e -> pp_un_op "!" e
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| True _ -> string "true"
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| False _ -> string "false"
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and pp_bin_op op {value; _} =
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let {arg1; arg2; _} = value
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and length = String.length op + 1 in
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pp_expr arg1 ^/^ string (op ^ " ") ^^ nest length (pp_expr arg2)
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and pp_un_op op {value; _} =
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string (op ^ " ") ^^ pp_expr value.arg
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and pp_comp_expr = function
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Lt e -> pp_bin_op "<" e
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| Leq e -> pp_bin_op "<=" e
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| Gt e -> pp_bin_op ">" e
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| Geq e -> pp_bin_op ">=" e
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| Equal e -> pp_bin_op "==" e
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| Neq e -> pp_bin_op "!=" e
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and pp_arith_expr = function
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Add e -> pp_bin_op "+" e
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| Sub e -> pp_bin_op "-" e
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| Mult e -> pp_bin_op "*" e
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| Div e -> pp_bin_op "/" e
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| Mod e -> pp_bin_op "mod" e
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| Neg e -> string "-" ^^ pp_expr e.value.arg
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| Int e -> pp_int e
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| Nat e -> pp_nat e
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| Mutez e -> pp_mutez e
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and pp_mutez {value; _} =
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Z.to_string (snd value) ^ "mutez" |> string
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and pp_string_expr = function
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Cat e -> pp_bin_op "++" e
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| String e -> pp_string e
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| Verbatim e -> pp_verbatim e
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and pp_list_expr = function
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(* let {arg1; arg2; _} = value
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and length = String.length op + 1 in
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pp_expr arg1 ^/^ string (op ^ " ") ^^ nest length (pp_expr arg2) *)
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| ECons {value = {arg1; arg2; _}; _ } ->
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string "[" ^^ pp_expr arg1 ^^ string "," ^^ break 1 ^^ string "..." ^^ pp_expr arg2 ^^ string "]"
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| EListComp e -> group (pp_injection pp_expr e)
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and pp_injection :
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'a.('a -> document) -> 'a injection reg -> document =
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fun printer {value; _} ->
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let {compound; elements; _} = value in
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let sep = (string ",") ^^ break 1 in
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let elements = Utils.sepseq_to_list elements in
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let elements = separate_map sep printer elements in
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match pp_compound compound with
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None -> elements
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| Some (opening, closing) ->
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string opening ^^ nest 1 elements ^^ string closing
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and pp_compound = function
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BeginEnd (start, _) ->
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if start#is_ghost then None else Some ("begin","end")
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| Braces (start, _) ->
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if start#is_ghost then None else Some ("{","}")
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| Brackets (start, _) ->
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if start#is_ghost then None else Some ("[","]")
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and pp_constr_expr = function
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ENone _ -> string "None"
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| ESomeApp a -> pp_some a
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| EConstrApp a -> pp_constr_app a
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and pp_some {value=_, e; _} =
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prefix 4 1 (string "Some") (pp_expr e)
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and pp_constr_app {value; _} =
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let constr, arg = value in
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let constr = string constr.value in
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match arg with
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None -> constr
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| Some e -> prefix 2 1 constr (pp_expr e)
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and pp_record_expr ne_inj = pp_ne_injection pp_field_assign ne_inj
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and pp_field_assign {value; _} =
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let {field_name; field_expr; _} = value in
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prefix 2 1 (pp_ident field_name ^^ string " =") (pp_expr field_expr)
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and pp_ne_injection :
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'a.('a -> document) -> 'a ne_injection reg -> document =
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fun printer {value; _} ->
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let {compound; ne_elements; _} = value in
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let elements = pp_nsepseq "," printer ne_elements in
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match pp_compound compound with
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None -> elements
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| Some (opening, closing) ->
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string opening ^^ nest 2 (break 0 ^^ elements) ^^ break 1 ^^ string closing
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and pp_nsepseq :
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'a.string ->
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('a -> document) ->
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('a, t) Utils.nsepseq ->
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document =
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fun sep printer elements ->
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let elems = Utils.nsepseq_to_list elements
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and sep = string sep ^^ break 1
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in separate_map sep printer elems
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and pp_nseq : 'a.('a -> document) -> 'a Utils.nseq -> document =
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fun printer (head, tail) ->
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separate_map (break 1) printer (head::tail)
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and pp_projection {value; _} =
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let {struct_name; field_path; _} = value in
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let fields = Utils.nsepseq_to_list field_path
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and sep = string "." ^^ break 0 in
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let fields = separate_map sep pp_selection fields in
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group (pp_ident struct_name ^^ string "." ^^ break 0 ^^ fields)
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and pp_selection = function
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FieldName v -> string v.value
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| Component cmp -> cmp.value |> snd |> Z.to_string |> string
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and pp_update {value; _} =
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let {record; updates; _} = value in
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let updates = group (pp_ne_injection pp_field_path_assign updates)
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and record = pp_path record in
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string "{..." ^^ record ^^ string ","
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^^ nest 2 (break 1 ^^ updates ^^ string "}")
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and pp_field_path_assign {value; _} =
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let {field_path; field_expr; _} = value in
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let fields = Utils.nsepseq_to_list field_path
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and sep = string "." ^^ break 0 in
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let path = separate_map sep pp_ident fields in
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prefix 2 1 (path ^^ string ":") (pp_expr field_expr)
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and pp_path = function
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Name v -> pp_ident v
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| Path p -> pp_projection p
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and pp_call_expr {value; _} =
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let lambda, arguments = value in
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let arguments = string "(" ^^ pp_nseq pp_expr arguments ^^ string ")" in
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group (break 0 ^^ pp_expr lambda ^^ nest 2 arguments)
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and pp_tuple_expr {value; _} =
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let head, tail = value in
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let rec app = function
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[] -> empty
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| [e] -> group (break 1 ^^ pp_expr e)
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| e::items ->
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group (break 1 ^^ pp_expr e ^^ string ",") ^^ app items
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in if tail = []
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then string "(" ^^ pp_expr head ^^ string ")"
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else string "(" ^^ pp_expr head ^^ string "," ^^ app (List.map snd tail) ^^ string ")"
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and pp_par_expr {value; _} =
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string "(" ^^ nest 1 (pp_expr value.inside ^^ string ")")
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and pp_let_in {value; _} =
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let {binding; kwd_rec; body; attributes; _} = value in
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let let_str =
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match kwd_rec with
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None -> "let "
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| Some _ -> "let rec " in
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let bindings = pp_let_binding let_str binding
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and attr = pp_attributes attributes
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in attr ^^ bindings
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^^ string ";" ^^ hardline ^^ pp_expr body
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and pp_fun {value; _} =
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let {binders; lhs_type; body; _} = value in
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let patterns = Utils.nseq_to_list binders in
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let binders = group (separate_map (string "," ^^ break 0 ^^ string " ") pp_pattern patterns)
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and annot =
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match lhs_type with
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None -> empty
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| Some (_,e) ->
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group (break 0 ^^ string ":" ^^ nest 2 (break 1 ^^ pp_type_expr e))
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in prefix 2 0 (string "(" ^^ binders ^^ string ")" ^^ annot
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^^ string " => ") (pp_expr body)
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and pp_seq {value; _} =
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let {compound; elements; _} = value in
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let sep = string ";" ^^ hardline in
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let elements = Utils.sepseq_to_list elements in
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let elements = separate_map sep pp_expr elements in
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match pp_compound compound with
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None -> elements
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| Some (opening, closing) ->
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string opening
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^^ nest 2 (hardline ^^ elements) ^^ hardline
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^^ string closing
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and pp_type_expr = function
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TProd t -> pp_cartesian t
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| TSum t -> pp_variants t
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| TRecord t -> pp_fields t
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| TApp t -> pp_type_app t
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| TFun t -> pp_fun_type t
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| TPar t -> pp_type_par t
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| TVar t -> pp_ident t
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| TString s -> pp_string s
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and pp_cartesian {value; _} =
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let head, tail = value in
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let rec app = function
|
||||
[] -> empty
|
||||
| [e] -> group (break 1 ^^ pp_type_expr e)
|
||||
| e::items ->
|
||||
group (break 1 ^^ pp_type_expr e ^^ string ",") ^^ app items
|
||||
in string "(" ^^ pp_type_expr head ^^ string "," ^^ app (List.map snd tail) ^^ string ")"
|
||||
|
||||
and pp_variants {value; _} =
|
||||
let head, tail = value in
|
||||
let head = pp_variant head in
|
||||
let head = if tail = [] then head
|
||||
else ifflat head (string " " ^^ head) in
|
||||
let rest = List.map snd tail in
|
||||
let app variant = break 1 ^^ string "| " ^^ pp_variant variant
|
||||
in head ^^ concat_map app rest
|
||||
|
||||
and pp_variant {value; _} =
|
||||
let {constr; arg} = value in
|
||||
match arg with
|
||||
None -> pp_ident constr
|
||||
| Some (_, e) ->
|
||||
prefix 2 0 (pp_ident constr) (string "(" ^^ pp_type_expr e ^^ string ")")
|
||||
|
||||
and pp_fields fields = group (pp_ne_injection pp_field_decl fields)
|
||||
|
||||
and pp_field_decl {value; _} =
|
||||
let {field_name; field_type; _} = value in
|
||||
let name = pp_ident field_name in
|
||||
match field_type with
|
||||
| TVar v when v = field_name ->
|
||||
name
|
||||
| _ -> (
|
||||
let t_expr = pp_type_expr field_type
|
||||
in prefix 2 1 (name ^^ string ":") t_expr
|
||||
)
|
||||
|
||||
and pp_type_app {value; _} =
|
||||
let ctor, tuple = value in
|
||||
prefix 2 0 (pp_type_constr ctor) (string "(" ^^ pp_type_tuple tuple ^^ string ")")
|
||||
|
||||
and pp_type_tuple {value; _} =
|
||||
let head, tail = value.inside in
|
||||
let rec app = function
|
||||
[] -> empty
|
||||
| [e] -> group (break 1 ^^ pp_type_expr e)
|
||||
| e::items ->
|
||||
group (break 1 ^^ pp_type_expr e ^^ string ",") ^^ app items in
|
||||
if tail = []
|
||||
then pp_type_expr head
|
||||
else
|
||||
let components =
|
||||
pp_type_expr head ^^ string "," ^^ app (List.map snd tail)
|
||||
in components
|
||||
|
||||
and pp_type_constr ctor = string ctor.value
|
||||
|
||||
and pp_fun_args {value; _} =
|
||||
let lhs, _, rhs = value in
|
||||
match rhs with
|
||||
| TFun tf -> group (pp_type_expr lhs ^^ string ", " ^^ pp_fun_args tf)
|
||||
| _ -> group (pp_type_expr lhs ^^ string ")" ^^ string " =>" ^/^ pp_type_expr rhs)
|
||||
|
||||
and pp_fun_type {value; _} =
|
||||
let lhs, _, rhs = value in
|
||||
match rhs with
|
||||
| TFun tf -> string "(" ^^ pp_type_expr lhs ^^ string ", " ^^ pp_fun_args tf
|
||||
| _ -> group (pp_type_expr lhs ^^ string ")" ^^ string " =>" ^/^ pp_type_expr rhs)
|
||||
|
||||
(* group (string "(" ^^ pp_type_expr lhs ^^ string ")" ^^ string " =>" ^/^ pp_type_expr rhs) *)
|
||||
|
||||
and pp_type_par {value; _} =
|
||||
string "(" ^^ nest 1 (pp_type_expr value.inside ^^ string ")")
|
||||
@ -15,7 +15,7 @@
|
||||
(name parser_reasonligo)
|
||||
(public_name ligo.parser.reasonligo)
|
||||
(modules
|
||||
SyntaxError reasonligo LexToken ParErr Parser)
|
||||
SyntaxError reasonligo LexToken ParErr Parser Pretty)
|
||||
(libraries
|
||||
menhirLib
|
||||
parser_shared
|
||||
|
||||
Loading…
Reference in New Issue
Block a user