/
camlTestsScript.sml
1536 lines (1275 loc) · 44.3 KB
/
camlTestsScript.sml
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(*
Some tests for the OCaml parser.
The setup is copied from ../tests/cmlTestsScript.sml.
*)
open preamble camlPEGTheory camlPtreeConversionTheory caml_lexTheory;
local open ASCIInumbersLib stringSyntax in end
val _ = new_theory "camlTests"
val _ = set_grammar_ancestry [
"misc", "pegexec", "caml_lex", "camlPEG", "camlPtreeConversion", "ast"
]
val _ = bring_to_front_overload "nType" {Name="nType", Thy="camlPEG"};
val _ = bring_to_front_overload "nPattern" {Name="nPattern", Thy="camlPEG"};
Type NT = “:camlNT inf”;
Overload mkNT = “INL : camlNT -> NT”;
Overload TK = “TOK : token -> (token,camlNT) grammar$symbol”;
Overload NN = “Nd (mkNT n, unknown_loc)”;
Overload Tf = “λt. Lf (TOK t, unknown_loc)”;
Overload vbinop = “λopn a1 a2. App Opapp [App Opapp [Var opn; a1]; a2]”;
Overload V = “λvnm. Var (Short vnm)”;
Overload Pv = “λvnm. Pvar vnm”;
Overload Pc = “λcnm. Pcon (SOME (Short cnm))”;
Overload C = “λcnm. Con (SOME (Short cnm))”
val _ = temp_add_user_printer
("locsprinter", “Locs x y”,
(fn gs => fn be => fn sysp => fn {add_string,...} =>
fn gravs => fn depth => fn t => add_string "L"));
fun strip_Lannot t =
if is_comb t then
let val (tl, tr) = dest_comb t in
if is_comb tl then
let val (t1, t2) = dest_comb tl in
if t1 ~~ ``Lannot`` then strip_Lannot t2
else mk_comb(mk_comb(strip_Lannot t1, strip_Lannot t2), strip_Lannot tr)
end
else mk_comb(tl, strip_Lannot tr)
end
else t;
val locs_ty = “:locs”;
fun aconv_mod_locs t1 t2 =
case total (match_term t1) t2
of SOME (s,[]) =>
List.all (equal locs_ty o #2 o dest_var o #redex) s
| _ => false;
val result_t = “Result”;
val success_t = “Success”;
fun parsetest0 nt sem s opt = let
val s_t = stringSyntax.lift_string bool s
val _ = print ("**********\nLexing "^s^"\n")
val t = time (rhs o concl o EVAL) “lexer_fun ^s_t”
val ttoks = rhs (concl (EVAL “MAP (TK o FST) ^t”))
val _ = print ("Lexes to : " ^ term_to_string ttoks ^ "\n")
val _ = print ("Parsing\n")
val evalth =
time EVAL “peg_exec camlPEG (nt (mkNT ^nt) I) ^t [] NONE [] done failed”
val r = rhs (concl evalth)
fun diag(s,t) = let
fun pp (s,t) =
PP.block PP.CONSISTENT 0 [
PP.add_string s,
PP.add_break (1,2),
pp_term t
]
in
PP.prettyPrint (print, 79) (pp (s,t))
end
fun die (s,t) = (diag (s,t); raise Fail ("Failed "^s))
in
if same_const (rator r) result_t then
if same_const (rand r |> strip_comb |> #1) success_t then let
val (_, args) = strip_comb (rand r)
val remaining_input = hd args
val resl = hd (tl args) (* should be singleton list *)
val res = lhand resl (* extract h of CONS h NIL *)
in
if listSyntax.is_nil remaining_input then let
val _ = diag ("EVAL to: ", res)
val fringe_th = EVAL “ptree_fringe ^res”
val fringe_t = rhs (concl fringe_th)
val _ = diag ("fringe = ", fringe_t)
in
if aconv fringe_t ttoks then let
val ptree_res =
case Lib.total mk_icomb(sem,res) of
NONE => optionSyntax.mk_none bool
| SOME t =>
let
val rt = rhs (concl (time EVAL t))
in
if sumSyntax.is_inr rt then
rand rt
else die ("Sem. failure", rt)
end
val ptree_clean = strip_Lannot ptree_res
val _ = diag ("Semantics ("^term_to_string sem^") to ", ptree_clean)
in
if not (optionSyntax.is_none ptree_res) then
case opt of
NONE => ()
| SOME t => if aconv_mod_locs t (ptree_clean) then
print "Semantic output as expected\n"
else
die ("Semantics fails; is not the required ", t)
else ()
end
else die ("Fringe not preserved!", ttoks)
end
else die ("REMAINING INPUT:", remaining_input)
end
else die ("FAILED:", r)
else die ("NO RESULT:", r)
end;
fun parsetest t1 t2 s = parsetest0 t1 t2 s NONE;
(* -------------------------------------------------------------------------
* Various identifiers
* ------------------------------------------------------------------------- *)
(* No lowercase letters in tail means it's a variable name *)
val _ = parsetest0 “nValueName” “ptree_ValueName”
"A_"
(SOME “"A_"”)
;
(* Starts with uppercase, one lowercase letter in tail and no uppercase
* means its a constructor. *)
val _ = parsetest0 “nConstrName” “ptree_ConstrName”
"A_a"
(SOME “"A_a"”)
;
(* Variable; an uppercase letter in the tail. *)
val _ = parsetest0 “nValueName” “ptree_ValueName”
"A_aA"
(SOME “"A_aA"”)
;
(* Starts with lowercase; variable. *)
val _ = parsetest0 “nValueName” “ptree_ValueName”
"aAa"
(SOME “"aAa"”)
;
(* Starts with uppercase; one lowercase in tail; no uppercase in tail:
* module name (same as constructor). *)
val _ = parsetest0 “nModuleName” “ptree_ModuleName”
"A_b"
(SOME “"A_b"”)
;
(* Module name. *)
val _ = parsetest0 “nModuleName” “ptree_ModuleName”
"Bbb"
(SOME “"Bbb"”)
;
(* No lowercase letters in tail: variable. *)
val _ = parsetest0 “nValueName” “ptree_ValueName”
"B"
(SOME “"B"”)
;
(* -------------------------------------------------------------------------
* CakeML escape hatch
* ------------------------------------------------------------------------- *)
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"raise (Fail \"5\")"
(SOME “Raise (C "Fail" [Lit (StrLit "5")])”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"raise (f x)"
(SOME “Raise (App Opapp [V "f"; V "x"])”)
;
val _ = parsetest0 “nStart” “ptree_Start”
"let x = 2 ;; (*CML val x = 5; print \"z\"; fun ref x = Ref x; *)"
(SOME “[Dlet L1 (Pv "x") (Lit (IntLit 2));
Dlet L2 (Pv "x") (Lit (IntLit 5));
Dlet L3 (Pv "it") (App Opapp [V "print"; Lit (StrLit "z")]);
Dletrec L4 [("ref","x", App Opref [V "x"])]]”)
;
val _ = parsetest0 “nStart” “ptree_Start”
"(*CML val x = x; (*CML comments and pragmas are skipped *) val y = y;*)"
(SOME “[Dlet L1 (Pv "x") (V "x");
Dlet L2 (Pv "y") (V "y")]”)
;
(* This fails, as expected:
val _ = parsetest0 “nStart” “ptree_Start”
"let x = (*CML val x = x; *) 6;;"
NONE
;
*)
(* -------------------------------------------------------------------------
* Types
* ------------------------------------------------------------------------- *)
fun tytest0 s r = parsetest0 “nType” “ptree_Type” s (SOME r);
val tytest = parsetest “nType” “ptree_Type”;
val _ = tytest0 "'a"
“Atvar "a"”
;
val _ = tytest0 "'a * 'b"
“Attup [Atvar "a"; Atvar "b"]”
;
val _ = tytest0 "'a * 'b * 'c"
“Attup [Atvar "a"; Atvar "b"; Atvar "c"]”
;
val _ = tytest0 "'a * 'b -> 'c"
“Atfun (Attup [Atvar "a"; Atvar "b"]) (Atvar "c")”
;
val _ = tytest0 "('a, 'b) blorb"
“Atapp [Atvar "a"; Atvar "b"] (Short "blorb")”
;
val _ = tytest0 "Foo.blorb"
“Atapp [] (Long "Foo" (Short "blorb"))”
;
val _ = tytest0 "'a * bool"
“Attup [Atvar "a"; Atapp [] (Short "bool")]”
;
val _ = tytest0 "'a * bool * 'c"
“Attup [Atvar "a"; Atapp [] (Short "bool"); Atvar "c"]”
;
val _ = tytest0 "'a * bool -> 'a"
“Atfun (Attup [Atvar "a"; Atapp [] (Short "bool")]) (Atvar "a")”
;
val _ = tytest0 "'a * (bool * 'c)"
“Attup [Atvar "a"; Attup [Atapp [] (Short "bool"); Atvar "c"]]”
;
val _ = tytest0 "('a * bool) * 'c"
“Attup [Attup [Atvar "a"; Atapp [] (Short "bool")]; Atvar "c"]”
;
val _ = tytest0 "('a * 'b)"
“Attup [Atvar "a"; Atvar "b"]”
;
val _ = tytest0 "('a,'b) d"
“Atapp [Atvar "a"; Atvar "b"] (Short "d")”
;
(* -------------------------------------------------------------------------
* Patterns
* ------------------------------------------------------------------------- *)
val _ = parsetest0 “nPattern” “ptree_Pattern”
"Cc a as i, Dd b as j" (* = ((Cc a as i), Dd b) as j *)
(SOME “[Pas (Pcon NONE [Pas (Pc "Cc" [Pv "a"]) "i"; Pc "Dd" [Pv "b"]]) "j"]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"(x) as i :: j" (* = (x as i) :: j *)
(SOME “[Pc "::" [Pas (Pv "x") "i"; Pv "j"]]”)
;
(* , is below :: in prec. but we can raise it by wrapping it with 'as i' *)
val _ = parsetest0 “nPattern” “ptree_Pattern”
"x,y as i :: j"
(SOME “[Pc "::" [Pas (Pcon NONE [Pv "x"; Pv "y"]) "i"; Pv "j"]]”)
;
(* can nest 'as' arbitrarily deep (though its a pretty useless feature) *)
val _ = parsetest0 “nPattern” “ptree_Pattern”
"x as i as j as k"
(SOME “[Pas (Pas (Pas (Pv "x") "i") "j") "k"]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"x as i as j as k :: j"
(SOME “[Pc "::" [Pas (Pas (Pas (Pv "x") "i") "j") "k"; Pv "j"]]”)
;
(* as needs to bind anything to its left *)
val _ = parsetest0 “nPattern” “ptree_Pattern”
"x as i :: y as j"
(SOME “[Pas (Pc "::" [Pas (Pv "x") "i"; Pv "y"]) "j"]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"x as i :: y as j :: z as k"
(SOME “[Pas (Pc "::" [
Pas (Pc "::" [Pas (Pv "x") "i"; Pv "y"]) "j"; Pv "z"])
"k"]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"x,y as i :: y as j :: z as k"
(SOME “[Pas (Pc "::" [
Pas (Pc "::" [Pas (Pcon NONE [Pv "x"; Pv "y"]) "i";
Pv "y"]) "j";
Pv "z"]) "k"]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"a, b | c, d"
(SOME “[Pcon NONE [Pv "a"; Pv "b"];
Pcon NONE [Pv "c"; Pv "d"]]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"Comb (a,b) as c, d"
(SOME “[Pcon NONE [Pas (Pc "Comb" [Pv "a"; Pv "b"]) "c"; Pv "d"]]”)
val _ = parsetest0 “nPattern” “ptree_Pattern”
"false::[]"
(SOME “[Pc "::" [Pc "False" []; Pc "[]" []]]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"x as y"
(SOME “[Pas (Pvar "x") "y"]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"x | y"
(SOME “[Pvar "x"; Pvar "y"]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"Some x | y"
(SOME “[Pc "Some" [Pvar "x"]; Pvar "y"]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"y,z,x"
(SOME “[Pcon NONE [Pvar "y"; Pvar "z"; Pvar "x"]]”)
;
(* Make sure or-patterns distribute OK *)
val _ = parsetest0 “nPattern” “ptree_Pattern”
"Some (x | Inl (y | z))"
(SOME “[Pc "Some" [Pv "x"];
Pc "Some" [Pc "Inl" [Pv "y"]];
Pc "Some" [Pc "Inl" [Pv "z"]]]”)
;
(* Make sure the precedence parser can handle commas correctly
(they are non-associative)
*)
val _ = parsetest0 “nPattern” “ptree_Pattern”
"(y,z),x"
(SOME “[Pcon NONE [Pcon NONE [Pvar "y"; Pvar "z"]; Pvar "x"]]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"y,(z,x)"
(SOME “[Pcon NONE [Pv "y"; Pcon NONE [Pvar "z"; Pvar "x"]]]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"(x: int)"
(SOME “[Ptannot (Pvar "x") (Atapp [] (Short "int"))]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"Aa (Bb (Cc x))"
(SOME “[Pc "Aa" [Pc "Bb" [Pc "Cc" [Pvar "x"]]]]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"a :: 1"
(SOME “[Pc "::" [Pvar "a"; Plit (IntLit 1)]]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"[a,b ; c]"
(SOME “[Pc "::" [Pcon NONE [Pvar "a"; Pvar "b"];
Pc "::" [Pvar "c"; Pc "[]" []]]]”)
;
(* Nesting with all three pattern operators at once. The alias distributes over
* both sides due to the or-pattern which is apparently what happens in OCaml
* as well (madness).
*)
val _ = parsetest0 “nPattern” “ptree_PPattern”
"a,b :: c, d | zs as i"
(SOME “ Pp_as (Pp_or (Pp_con NONE [
Pp_var "a"; Pp_con (SOME (Short "::")) [Pp_var "b"; Pp_var "c"];
Pp_var "d"]) (Pp_var "zs")) "i"”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"a,b :: c, d | zs as i"
(SOME (“[Pas (Pcon NONE [Pv "a"; Pc "::" [Pv "b"; Pv "c"]; Pv "d"]) "i";
Pas (Pv "zs") "i"]”))
;
val _ = parsetest0 “nPattern” “ptree_PPattern”
"(y as z)"
NONE
val _ = parsetest0 “nPattern” “ptree_PPattern”
"Cn(x,(y as z))"
(SOME “Pp_con (SOME (Short "Cn"))
[Pp_con NONE [Pp_var "x"; Pp_as (Pp_var "y") "z"]]”)
;
val _ = parsetest0 “nPattern” “ptree_Pattern”
"Cn(x,(y as z))"
(SOME “[Pc "Cn" [Pcon NONE [Pv "x"; Pas (Pv "y") "z"]]]”)
;
(* -------------------------------------------------------------------------
* Record syntax
* ------------------------------------------------------------------------- *)
(* record projection and update *)
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"x.foo"
(SOME (rconc $ EVAL “App Opapp [V (mk_record_proj_name "foo"); V "x"]”))
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"{x with foo = bar}"
(SOME (rconc $ EVAL “App Opapp [App Opapp [
V (mk_record_update_name "foo"); V "x"]; V "bar"]”))
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"{x with foo = bar;}"
(SOME (rconc $ EVAL “App Opapp [App Opapp [
V (mk_record_update_name "foo"); V "x"]; V "bar"]”))
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"{x with foo = bar; baz = quux;}"
(SOME (rconc $ EVAL “App Opapp [App Opapp [V (mk_record_update_name "baz");
App Opapp [App Opapp [V (mk_record_update_name "foo");
V "x"]; V "bar"]]; V "quux"]”))
;
(* construction *)
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"Foo { foo = 5; bar = true }"
(SOME (rconc $ EVAL
“App Opapp [App Opapp [V (mk_record_constr_name "Foo" ["bar";"foo"]);
(C "True" [])];
Lit (IntLit 5)]”))
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"Foo { f2 = 2; f1 = 1; f3 = 3;}"
NONE
;
(* declaration *)
val _ = parsetest0 “nStart” “ptree_Start”
"type rec1 = Foo of {f3: t3; f1: t1; f2: t2};;"
NONE
;
val _ = parsetest0 “nStart” “ptree_Start”
"type rec1 = Foo of {foo: int; bar: bool};;"
(SOME (rconc $ EVAL “
[Dtype L [([],"rec1",[("Foo",[Attup [Atapp [] (Short "bool"); Atapp [] (Short "int")]])])];
Dlet L1 (Pv (mk_record_constr_name "Foo" ["bar";"foo"]))
(Fun "bar" (Fun "foo" (C "Foo" [Con NONE [V "bar"; V "foo"]])));
Dlet L2 (Pv (mk_record_proj_name "bar"))
(Fun "" (Mat (V "") [(Pc "Foo" [Pcon NONE [Pv "bar"; Pv "foo"]],V "bar")]));
Dlet L3 (Pv (mk_record_proj_name "foo"))
(Fun "" (Mat (V "") [(Pc "Foo" [Pcon NONE [Pv "bar"; Pv "foo"]],V "foo")]));
Dlet L4 (Pv (mk_record_update_name "bar"))
(Fun ""
(Mat (V "")
[(Pc "Foo" [Pcon NONE [Pv "bar"; Pv "foo"]],
Fun "bar" (C "Foo" [Con NONE [V "bar"; V "foo"]]))]));
Dlet L5 (Pv (mk_record_update_name "foo"))
(Fun ""
(Mat (V "")
[(Pc "Foo" [Pcon NONE [Pv "bar"; Pv "foo"]],
Fun "foo" (C "Foo" [Con NONE [V "bar"; V "foo"]]))]))]”))
;
(* -------------------------------------------------------------------------
* Expressions
* ------------------------------------------------------------------------- *)
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"true || let y = z in y"
(SOME “Log Or (C "True" []) (Let (SOME "y") (V "z") (V "y"))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let y = z in y || true"
(SOME “Let (SOME "y") (V "z") (Log Or (V "y") (C "True" []))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"0 + match x with y -> z"
(SOME (“vbinop (Short "+") (Lit (IntLit 0)) (Mat (V "x") [(Pv "y", V "z")])”))
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"- fun x -> x"
(SOME “App Opapp [Var (Long "Int" (Short "~")); Fun "x" (V "x")]”)
;
val _ = parsetest0 “nENeg” “ptree_Expr nENeg”
" - let y = z in y"
(SOME “App Opapp [Var (Long "Int" (Short "~"));
Let (SOME "y") (V "z") (V "y")]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"a, [], fun x -> ()"
(SOME “Con NONE [V "a"; C "[]" []; Fun "x" (Con NONE [])]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"a, match x with y -> z, w"
(SOME “Con NONE [V "a"; Mat (V "x") [(Pv "y", Con NONE [V "z"; V "w"])]]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"match x with y -> z, w"
(SOME “Mat (V "x") [(Pv "y", Con NONE [V "z"; V "w"])]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"match !myref () with a -> b"
(SOME “Mat (App Opapp [App Opapp [V "!"; V "myref"]; Con NONE []])
([(Pv "a", V "b")])”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"f !myref"
(SOME “App Opapp [V "f"; App Opapp [V "!"; V "myref"]]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"x && y"
(SOME “Log And (V "x") (V "y")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"x || y"
(SOME “Log Or (V "x") (V "y")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"if x || y then x && y"
(SOME “If (Log Or (V "x") (V "y"))
(Log And (V "x") (V "y"))
(Con NONE [])”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(n-1)"
(SOME “vbinop (Short "-") (V "n") (Lit (IntLit 1))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(n -1)"
(SOME “vbinop (Short "-") (V "n") (Lit (IntLit 1))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"-1"
(SOME “App Opapp [Var (Long "Int" (Short "~")); Lit (IntLit 1)]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(+) ; 2"
(SOME “Let NONE (V "+") (Lit (IntLit 2))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"function x -> y ; function a -> b"
(SOME “Fun "" (Mat (V "")
[(Pv "x", Let NONE (V "y")
(Fun "" (Mat (V "")
[(Pv "a", V "b")])))])”)
;
val _ = parsetest0 “nDefinition” “ptree_Definition”
" let print_stdout printer data =\
\ let st = empty () in\
\ printer st data;\
\ let tok = to_token st in\
\ let apps = Pretty_core.print (!margin) tok in\
\ App_list.iter (output_string stdout) apps"
(SOME “[Dlet L (Pv "print_stdout") (Fun "printer" (Fun "data"
(Let (SOME "st") (App Opapp [V "empty"; Con NONE []])
(Let NONE (App Opapp [App Opapp [V "printer"; V "st"]; V "data"])
(Let (SOME "tok") (App Opapp [V "to_token"; V "st"])
(Let (SOME "apps")
(App Opapp [App Opapp [Var (Long "Pretty_core"
(Short "print"));
App Opapp [V "!"; V "margin"]];
V "tok"])
(App Opapp [App Opapp [Var (Long "App_list" (Short "iter"));
App Opapp [V "output_string";
V "stdout"]];
V "apps"])))))))]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"if x;y then z"
(SOME “If (Let NONE (V "x") (V "y")) (V "z") (Con NONE [])”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"if y then z; w"
(SOME “Let NONE (If (V "y") (V "z") (Con NONE [])) (V "w")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"fun x -> y ; z"
(SOME “Fun "x" (Let NONE (V "y") (V "z"))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(fun x -> y) ; z"
(SOME “Let NONE (Fun "x" (V "y")) (V "z")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"[let x = a in x; let y = b in y]"
(SOME “
C "::" [Let (SOME "x") (V "a")
(Let NONE (V "x")
(Let (SOME "y") (V "b") (V "y")));
C "[]" []]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"match x with \
\ | a -> f; c \
\ | b -> q; w"
(SOME “
Mat (V "x")
[(Pv "a", Let NONE (V "f") (V "c"));
(Pv "b", Let NONE (V "q") (V "w"))]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"if b then let x = z in a; b"
(SOME “
If (V "b")
(Let (SOME "x") (V "z")
(Let NONE (V "a") (V "b")))
(Con NONE [])”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"foo; if b then print (); bar"
(SOME “
Let NONE (V "foo")
(Let NONE (If (V "b") (App Opapp [V "print"; Con NONE []])
(Con NONE []))
(V "bar"))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"foo; let x = z in y ; bar"
(SOME “
Let NONE (V "foo")
(Let (SOME "x") (V "z")
(Let NONE (V "y") (V "bar")))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let (:=) x = z in w"
(SOME “Let (SOME ":=") (Fun "x" (V "z")) (V "w")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(:=)"
(SOME “(V ":=")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let _ = Ref x in z"
(SOME “Let NONE (App Opref [V "x"]) (V "z")”)
;
val _ = parsetest0 “nValuePath” “ptree_ValuePath”
"Aa.B_b.c"
(SOME “["Aa"; "B_b"; "c"]”)
;
val _ = parsetest0 “nValuePath” “ptree_ValuePath”
"B_b.cDEF"
(SOME “["B_b"; "cDEF"]”)
;
val _ = parsetest0 “nValuePath” “ptree_ValuePath”
"cDEF"
(SOME “["cDEF"]”)
;
val _ = parsetest0 “nConstr” “ptree_Constr”
"Cd"
(SOME “["Cd"]”)
;
val _ = parsetest0 “nConstr” “ptree_Constr”
"Ab.Cd"
(SOME “["Ab"; "Cd"]”)
;
val _ = parsetest0 “nModulePath” “ptree_ModulePath”
"Mm.Nn"
(SOME “["Mm"; "Nn"]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let [x; y] = z in w"
(SOME “Mat (V "z")
[(Pc "::" [Pvar "x";
Pc "::" [Pvar "y";
Pc "[]" []]], V "w")]”);
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let a x = y and b x = z in w"
(SOME “Let (SOME "a") (Fun "x" (Var (Short "y")))
(Let (SOME "b") (Fun "x" (Var (Short "z")))
(Var (Short "w")))”);
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let f x y = x in z"
(SOME “Let (SOME "f") (Fun "x" (Fun "y" (V "x"))) (V "z")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let f (x,y) = x in z"
(SOME “Let (SOME "f")
(Fun "" (Mat (V "") [(Pcon NONE [Pvar "x"; Pvar "y"], V "x")]))
(V "z")”);
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let f x = x in y"
(SOME “Let (SOME "f") (Fun "x" (V "x")) (V "y")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let rec f x = x in y"
(SOME “Letrec [("f", "x", V "x")] (V "y")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let rec f x y = x in z"
(SOME “Letrec [("f", "x", Fun "y" (V "x"))] (V "z")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let _ = print \"foo\" in\
\ let z = 10 in\
\ let (x,y) = g z in\
\ let rec h x = x + 1 in\
\ x + y"
(SOME “Let NONE (App Opapp [V "print"; Lit (StrLit "foo")])
(Let (SOME "z") (Lit (IntLit 10))
(Mat (App Opapp [V "g"; V "z"])
[(Pcon NONE [Pvar "x"; Pvar "y"],
Letrec [("h", "x",
vbinop (Short "+") (V "x") (Lit (IntLit 1)))]
(vbinop (Short "+") (V "x") (V "y")))]))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"let (x,y) = g z in\
\ let [h] = f a in\
\ x + y * h"
(SOME “Mat (App Opapp [V "g"; V "z"])
[(Pcon NONE [Pvar "x"; Pvar "y"],
Mat (App Opapp [V "f"; V "a"])
[(Pc "::" [Pvar "h"; Pc "[]" []],
vbinop (Short "+") (V "x")
(vbinop (Short "*") (V "y") (V "h")))])]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"fun x -> x"
(SOME “Fun "x" (V "x")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"fun (x, y) -> x + y"
(SOME “Fun "" (Mat (V "")
[(Pcon NONE [Pvar "x"; Pvar "y"],
vbinop (Short "+") (V "x") (V "y"))])”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"fun x y z -> y"
(SOME “Fun "x" (Fun "y" (Fun "z" (V "y")))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"fun z (x, y) w -> x + y"
(SOME “Fun "z" (Fun "" (Mat (V "")
[(Pcon NONE [Pvar "x"; Pvar "y"],
Fun "w" (vbinop (Short "+") (V "x") (V "y")))]))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(x : int)"
(SOME “Tannot (V "x") (Atapp [] (Short "int"))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(x : int) + 3"
(SOME “vbinop (Short "+") (Tannot (V "x") (Atapp [] (Short "int")))
(Lit (IntLit 3))”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(=)"
(SOME “V "="”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(THEN)"
(SOME “V "THEN"”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(mod)"
(SOME “V "mod"”)
;
(* TODO: lexer should support parenthesized star *)
(*
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"f (+) 10"
(SOME “App Opapp [App Opapp [V "f"; V "*"]; Lit (IntLit 10)]”)
;
*)
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"f (+) 10"
(SOME “App Opapp [App Opapp [V "f"; V "+"]; Lit (IntLit 10)]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(+) 10 11"
(SOME “App Opapp [App Opapp [V "+"; Lit (IntLit 10)]; Lit (IntLit 11)]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"(THEN) t1 t2"
(SOME “App Opapp [App Opapp [V "THEN"; V "t1"]; V "t2"]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"t1 THEN t2"
(SOME “vbinop (Short "THEN") (V "t1") (V "t2")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"t1 * t2"
(SOME “vbinop (Short "*") (V "t1") (V "t2")”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"()"
(SOME “Con NONE []”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"begin end"
(SOME “Con NONE []”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"Some begin end"
(SOME “C "Some" [Con NONE []]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
" match x with\
\ | [] -> 3\
\ | [e;_] -> e"
(SOME “Mat (Var (Short "x"))
[(Pc "[]" [], Lit (IntLit 3));
(Pc "::" [Pvar "e"; Pc "::" [Pany; Pc "[]" []]],
V "e")]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
" match x with\
\ | Some 3 | Some 4 -> e\
\ | _ -> d"
(SOME “Mat (V "x")
[(Pc "Some" [Plit (IntLit 3)], V "e");
(Pc "Some" [Plit (IntLit 4)], V "e");
(Pany, V "d")]”)
;
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
" match x with \
\ | [] -> 3\
\ | [] :: _ -> 1\
\ | (h::t) :: rest -> 2"
(SOME “Mat (V "x")
[(Pc "[]" [], Lit (IntLit 3));
(Pc "::" [Pc "[]" []; Pany], Lit (IntLit 1));
(Pc "::" [Pc "::" [Pvar "h"; Pvar "t"]; Pvar "rest"],
Lit (IntLit 2))]”)
;
(* pattern match with guard;
* expression matched on is bound to a variable to be re-used in else-branch of
* condition on P, in order to execute its side effects only once. All remaining
* pattern match rows (after the guarded row) are duplicated in the else-branch
* of the condition on P.
*)
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"match x with \n\
\| h::t when P -> z \n\
\| [] -> z \n\
\| _ -> w"
(SOME “
Let (SOME "") (V "x")
(Let (SOME " p") (Fun " u" (Mat (V "") [(Pc "[]" [],V "z");
(Pany,V "w");
]))
(Mat (V "")
[(Pc "::" [Pv "h"; Pv "t"],
If (V "P") (V "z") (App Opapp [V " p"; Con NONE []]));
(Pany,App Opapp [V " p"; Con NONE []])]))”);
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
"match x with \n\
\| r1 when x1 -> y1\n\
\| r2 -> y2\n\
\| r3 when x3 -> y3\n\
\| r4 -> y4\n"
(SOME “
Let (SOME "") (V "x")
(Let (SOME " p")
(Fun " u" (Mat (V "") [
(Pv "r2", V "y2");
(Pany, Let (SOME " p")
(Fun " u" (Mat (V "") [(Pv "r4",V "y4")]))
(Mat (V "") [
(Pv "r3", If (V "x3") (V "y3")
(App Opapp [V " p"; Con NONE []]));
(Pany,App Opapp [V " p"; Con NONE []])]))]))
(Mat (V "") [
(Pv "r1",If (V "x1") (V "y1") (App Opapp [V " p"; Con NONE []]));
(Pany,App Opapp [V " p"; Con NONE []])]))”);
val _ = parsetest0 “nExpr” “ptree_Expr nExpr”
" try f x with Ea _ -> g x\
\ | Eb -> h"
(SOME “Handle (App Opapp [V "f"; V "x"])
[(Pc "Ea" [Pany], App Opapp [V "g"; V "x"]);
(Pc "Eb" [], V "h")]”)