diff options
Diffstat (limited to 'perl_checker.src/parser_helper.ml')
| -rw-r--r-- | perl_checker.src/parser_helper.ml | 106 |
1 files changed, 51 insertions, 55 deletions
diff --git a/perl_checker.src/parser_helper.ml b/perl_checker.src/parser_helper.ml index 113d57b..ad2c009 100644 --- a/perl_checker.src/parser_helper.ml +++ b/perl_checker.src/parser_helper.ml @@ -797,16 +797,25 @@ msgstr \"\" let call_raw force_non_builtin_func (e, para) = match e with | Deref(I_func, Ident(None, f, _)) -> - let para' = match f with - | "no" -> - (match para with - | [ Ident(_, _, pos) as s ] -> Some [ Raw_string(string_of_Ident s, pos) ] - | [ Call(Deref(I_func, (Ident(_, _, pos) as s)), l) ] -> Some(Raw_string(string_of_Ident s, pos) :: l) - | _ -> die_rule "use \"no PACKAGE <para>\"") - | "undef" -> + (match f with + | "join" -> + (match un_parenthesize_full_l para with + | e :: _ when not (is_a_scalar e) -> warn_rule "first argument of join() must be a scalar"; + | [_] -> warn_rule "not enough parameters" + | [_; e] when is_a_scalar e -> warn_rule "join('...', $foo) is the same as $foo" + | _ -> ()) + + | "length" -> + if para = [] then warn_rule "length() with no parameter !?" else + if is_not_a_scalar (List.hd para) then warn_rule "never use \"length @l\", it returns the length of the string int(@l)" ; + + | "open" -> (match para with - | [ Deref(I_star, ident) ] -> Some [ Deref(I_func, ident) ] - | _ -> None) + | [ List(Ident(None, name, _) :: _) ] + | Ident(None, name, _) :: _ -> + if not (List.mem name [ "STDIN" ; "STDOUT" ; "STDERR" ]) then + warn_rule (sprintf "use a scalar instead of a bareword (eg: occurrences of %s with $%s)" name name) + | _ -> ()) | "N" | "N_" -> (match para with @@ -823,50 +832,9 @@ let call_raw force_non_builtin_func (e, para) = warn_rule "too many parameters" ; (*if String.contains s '\t' then warn_rule "tabulation in translated string must be written \\\\t";*) (*if count_matching_char s '\n' > 10 then warn_rule "long string";*) - None | [ List(String _ :: _) ] -> die_rule "don't use interpolated translated string, use %s or %d instead" | _ -> die_rule (sprintf "%s() must be used with a string" f)) - | "goto" -> - (match para with - | [ Ident(None, s, pos) ] -> Some [ Raw_string(s, pos) ] - | _ -> None) - - - | "join" -> - (match un_parenthesize_full_l para with - | e :: _ when not (is_a_scalar e) -> warn_rule "first argument of join() must be a scalar"; - | [_] -> warn_rule "not enough parameters" - | [_; e] when is_a_scalar e -> warn_rule "join('...', $foo) is the same as $foo" - | _ -> ()); - None - - | "last" | "next" | "redo" when not force_non_builtin_func -> - (match para with - | [ Ident(None, s, pos) ] -> Some [ Raw_string(s, pos) ] - | _ -> die_rule (sprintf "%s must be used with a raw string" f)) - - | "length" -> - if para = [] then warn_rule "length() with no parameter !?" else - if is_not_a_scalar (List.hd para) then warn_rule "never use \"length @l\", it returns the length of the string int(@l)" ; - None - - | "open" -> - (match para with - | [ List(Ident(None, name, _) :: _) ] - | Ident(None, name, _) :: _ -> - if not (List.mem name [ "STDIN" ; "STDOUT" ; "STDERR" ]) then - warn_rule (sprintf "use a scalar instead of a bareword (eg: occurrences of %s with $%s)" name name) - | _ -> ()); - None - - | "split" -> - (match para with - | [ List(Call_op("m//", Deref(I_scalar, Ident(None, "_", _)) :: pattern, pos) :: l) ] - | Call_op("m//", Deref(I_scalar, Ident(None, "_", _)) :: pattern, pos) :: l -> - Some(Call_op("qr//", pattern, pos) :: l) - | _ -> None) - | "map" | "grep" | "grep_index" | "map_index" | "partition" | "find" | "any" | "every" @@ -881,22 +849,50 @@ let call_raw force_non_builtin_func (e, para) = warn_rule ("a hash is not a valid parameter to function " ^ f) | Anonymous_sub _ :: _ -> () - | _ -> warn_rule (sprintf "always use \"%s\" with a block (eg: %s { ... } @list)" f f)); - None + | _ -> warn_rule (sprintf "always use \"%s\" with a block (eg: %s { ... } @list)" f f)) | "member" -> (match para with [ List [ _; Call(Deref(I_func, Ident(None, "keys", _)), _) ] ] -> warn_rule "you can replace \"member($xxx, keys %yyy)\" with \"exists $yyy{$xxx}\"" - | _ -> ()); - None + | _ -> ()) | "pop" | "shift" -> (match para with | [] | [ Deref(I_array, _) ] | [ List [ Deref(I_array, _) ] ] -> () - | _ -> warn_rule (f ^ " is expecting an array and nothing else")) ; None + | _ -> warn_rule (f ^ " is expecting an array and nothing else")) + + ); + + let para' = match f with + | "no" -> + (match para with + | [ Ident(_, _, pos) as s ] -> Some [ Raw_string(string_of_Ident s, pos) ] + | [ Call(Deref(I_func, (Ident(_, _, pos) as s)), l) ] -> Some(Raw_string(string_of_Ident s, pos) :: l) + | _ -> die_rule "use \"no PACKAGE <para>\"") + | "undef" -> + (match para with + | [ Deref(I_star, ident) ] -> Some [ Deref(I_func, ident) ] + | _ -> None) + + | "goto" -> + (match para with + | [ Ident(None, s, pos) ] -> Some [ Raw_string(s, pos) ] + | _ -> None) + + | "last" | "next" | "redo" when not force_non_builtin_func -> + (match para with + | [ Ident(None, s, pos) ] -> Some [ Raw_string(s, pos) ] + | _ -> die_rule (sprintf "%s must be used with a raw string" f)) + + | "split" -> + (match para with + | [ List(Call_op("m//", Deref(I_scalar, Ident(None, "_", _)) :: pattern, pos) :: l) ] + | Call_op("m//", Deref(I_scalar, Ident(None, "_", _)) :: pattern, pos) :: l -> + Some(Call_op("qr//", pattern, pos) :: l) + | _ -> None) | _ -> None in Call(e, some_or para' para) |