Source file C_print.ml
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(**
C_print - Printing, converts C AST to valid C code
*)
open C_AST
open Clang_utils
(** {2 Config} *)
let ignore_implicit_casts = true
(** Only print explicit casts, not implici ones. *)
let print_loc = ref true
(** Prints location information in comment for global declarations. *)
let = ref true
(** Prints comments attached to declarations. *)
let print_scope = false
(** Prints scope update information (end of blocks & jumps). *)
(** {2 Internal printing utilities} *)
let bp = Printf.bprintf
let bp_str = Buffer.add_string
let bp_char = Buffer.add_char
let bp_option none f buf a =
match a with
| None -> bp_str buf none
| Some x -> f buf x
let bp_array f sep buf ee =
for i=0 to Array.length ee-1 do
bp buf "%s%a" (if i=0 then "" else sep) f ee.(i)
done
let bp_list f sep buf ee =
let first = ref true in
List.iter
(fun e ->
bp buf "%s%a" (if !first then "" else sep) f e;
first := false
) ee
let bp_paren doit f buf a =
if doit then bp buf "(%a)" f a
else f buf a
let string_from_buffer f a =
let buf = Buffer.create 128 in
f buf a;
Buffer.contents buf
let inc_indent indent =
indent^" "
let bp_loc indent buf loc =
if !print_loc
then bp buf "%s/* %s */\n" indent (Clang_dump.string_of_loc loc.Clang_AST.range_begin)
(** {2 C pretty-printing} *)
let string_of_signedness = function
| SIGNED -> "signed"
| UNSIGNED -> "unsigned"
let string_of_integer_type = function
| Char _ -> "char"
| SIGNED_CHAR -> "signed char"
| UNSIGNED_CHAR -> "unsigned char"
| SIGNED_SHORT -> "short"
| UNSIGNED_SHORT -> "unsigned short"
| SIGNED_INT -> "int"
| UNSIGNED_INT -> "unsigned int"
| SIGNED_LONG -> "long"
| UNSIGNED_LONG -> "unsigned long"
| SIGNED_LONG_LONG -> "long long"
| UNSIGNED_LONG_LONG -> "unsigned long long"
| SIGNED_INT128 -> "__int128"
| UNSIGNED_INT128 -> "unsigned __uint128"
let integer_suffix = function
| Char SIGNED | SIGNED_CHAR | SIGNED_SHORT | SIGNED_INT -> ""
| Char UNSIGNED | UNSIGNED_CHAR | UNSIGNED_SHORT | UNSIGNED_INT -> "U"
| SIGNED_LONG -> "L"
| UNSIGNED_LONG -> "UL"
| SIGNED_LONG_LONG | SIGNED_INT128 -> "LL"
| UNSIGNED_LONG_LONG | UNSIGNED_INT128 -> "ULL"
let string_of_float_type = function
| FLOAT -> "float"
| DOUBLE -> "double"
| LONG_DOUBLE -> "long double"
| FLOAT128 -> "__float128"
let float_suffix = function
| FLOAT -> "F"
| DOUBLE -> ""
| LONG_DOUBLE -> "L"
| FLOAT128 -> "Q"
let string_of_record_kind = function
| STRUCT -> "struct"
| UNION -> "union"
let string_of_qualifier q =
if q.qual_is_const then "const " else ""
let string_of_binary_arithmetic = function
| ADD -> "+"
| SUB -> "-"
| MUL -> "*"
| DIV -> "/"
| MOD -> "%"
| LEFT_SHIFT -> "<<"
| RIGHT_SHIFT -> ">>"
| BIT_AND -> "&"
| BIT_OR -> "|"
| BIT_XOR -> "^"
let string_of_binary_logical = function
| LESS -> "<"
| LESS_EQUAL -> "<="
| GREATER -> ">"
| GREATER_EQUAL -> ">="
| EQUAL -> "=="
| NOT_EQUAL -> "!="
| LOGICAL_AND -> "&&"
| LOGICAL_OR -> "||"
let string_of_binary_operator = function
| O_arithmetic op -> string_of_binary_arithmetic op
| O_logical op -> string_of_binary_logical op
let string_of_unary_operator = function
| NEG -> "-"
| BIT_NOT -> "~"
| LOGICAL_NOT -> "!"
let string_of_inc_direction = function
| INC -> "++"
| DEC -> "--"
let rec prio_expr ((e,_,_):expr) =
match e with
| E_cast (ee,IMPLICIT) when ignore_implicit_casts -> prio_expr ee
| E_comma _ -> 0
| E_compound_assign _ | E_assign _ -> 1
| E_conditional _ | E_binary_conditional _ -> 2
| E_binary (O_logical LOGICAL_OR,_,_) -> 3
| E_binary (O_logical LOGICAL_AND,_,_) -> 4
| E_binary (O_arithmetic BIT_OR,_,_) -> 5
| E_binary (O_arithmetic BIT_XOR,_,_) -> 6
| E_binary (O_arithmetic BIT_AND,_,_) -> 7
| E_binary (O_logical (EQUAL | NOT_EQUAL),_,_) -> 8
| E_binary (O_logical (LESS | LESS_EQUAL | GREATER | GREATER_EQUAL),_,_) -> 9
| E_binary (O_arithmetic (LEFT_SHIFT | RIGHT_SHIFT),_,_) -> 10
| E_binary (O_arithmetic (ADD | SUB),_,_) -> 11
| E_binary (O_arithmetic (MUL | DIV | MOD),_,_) -> 12
| E_unary _ | E_increment (_,PRE,_) | E_cast _ | E_address_of _ | E_deref _ -> 13
| E_increment (_,POST,_) | E_array_subscript _ | E_member_access _ | E_arrow_access _ | E_call _ -> 14
| E_character_literal _ | E_integer_literal _ | E_float_literal _
| E_string_literal _ | E_compound_literal _
| E_variable _ | E_function _ | E_predefined _ | E_statement _
| E_var_args _ | E_atomic _
| E_convert_vector _ | E_vector_element _ | E_shuffle_vector _
-> 15
let force_paren prio =
prio == 10 || (prio >= 3 && prio <= 7)
let is_comma ((e,_,_):expr) =
match e with
| E_comma _ -> true
| _ -> false
let rec raw_buf_type_qual buf (t,q) =
bp buf "%s%a" (string_of_qualifier q) raw_buf_type t
and raw_buf_type buf = function
| T_void -> bp_str buf "void"
| T_bool -> bp_str buf "_Bool"
| T_integer i -> bp_str buf (string_of_integer_type i)
| T_float f -> bp_str buf (string_of_float_type f)
| T_builtin_fn -> bp_str buf "__builtin_fn"
| T_pointer tq -> bp buf "ptr(%a)" raw_buf_type_qual tq
| T_array (tq,l) -> bp buf "array(%a)" raw_buf_type_qual tq
| T_bitfield (t,l) -> bp buf "bitfield%i(%a)" l raw_buf_type t
| T_function None -> bp_str buf "func()"
| T_function (Some f) -> bp buf "func(%a, { %a },%B)" raw_buf_type_qual f.ftype_return (bp_list raw_buf_type_qual ", ") f.ftype_params f.ftype_variadic
| T_typedef t -> bp buf "typedef %s" t.typedef_unique_name
| T_enum e -> bp buf "enum %s" e.enum_unique_name
| T_record r -> bp buf "%s %s" (string_of_record_kind r.record_kind) r.record_unique_name
| T_complex f -> bp buf "%s _Complex" (string_of_float_type f)
| T_vector v -> bp buf "vector(%a, %i, %i)" raw_buf_type_qual v.vector_type v.vector_size v.vector_kind
| T_unknown_builtin s -> bp_str buf s
let rec c_buf_type_qual indent (var:string) (buf:Buffer.t) (tq:type_qual) =
c_buf_type_base buf tq;
if var <>"" then bp_str buf " ";
c_buf_type_suffix buf var indent false bp_str tq
and c_buf_type_base buf (t,q) = match t with
| T_void -> bp buf "%svoid" (string_of_qualifier q)
| T_bool -> bp buf "%s_Bool" (string_of_qualifier q)
| T_integer i -> bp buf "%s%s" (string_of_qualifier q) (string_of_integer_type i)
| T_float f -> bp buf "%s%s" (string_of_qualifier q) (string_of_float_type f)
| T_builtin_fn -> bp buf "%s__builtin_fn" (string_of_qualifier q)
| T_pointer tq -> c_buf_type_base buf tq
| T_array (tq,l) -> c_buf_type_base buf tq
| T_bitfield (t,l) -> c_buf_type_base buf (t,q)
| T_function None -> bp buf "%svoid" (string_of_qualifier q)
| T_function (Some f) -> c_buf_type_base buf f.ftype_return
| T_typedef t -> bp buf "%s%s" (string_of_qualifier q) t.typedef_unique_name
| T_enum e -> bp buf "%senum %s" (string_of_qualifier q) e.enum_unique_name
| T_record r ->
bp buf "%s%s %s"
(string_of_qualifier q) (string_of_record_kind r.record_kind) r.record_unique_name
| T_complex f -> bp buf "%s%s _Complex" (string_of_qualifier q) (string_of_float_type f)
| T_vector v -> bp buf "%a" c_buf_type_base v.vector_type
| T_unknown_builtin s -> bp_str buf s
and c_buf_type_suffix buf var indent inptr inner (t,q) = match t with
| T_void | T_bool | T_integer _ | T_float _ | T_builtin_fn | T_complex _ ->
inner buf var
| T_pointer tq ->
let inner' buf var = bp buf "*%s%a" (string_of_qualifier q) inner var in
c_buf_type_suffix buf var indent true inner' tq
| T_array (tq,l) ->
let inner' buf var = bp buf "%a[%a]" (bp_paren inptr inner) var (len indent) l in
c_buf_type_suffix buf var indent false inner' tq
| T_bitfield (t,l) ->
bp buf "%a : %i" inner var l
| T_function None ->
bp buf "(%a)()" (bp_paren inptr inner) var
| T_function (Some f) ->
let variadic = if f.ftype_variadic then if f.ftype_params = [] then "..." else ", ..." else "" in
let inner' buf var = bp buf "(%a)(%a%s)" inner var (bp_list (c_buf_type_qual indent "") ", ") f.ftype_params variadic
in
c_buf_type_suffix buf var indent true inner' f.ftype_return
| T_typedef _ | T_enum _ | T_record _ ->
inner buf var
| T_vector v ->
bp buf "__attribute__((__vector_size__(%i)))" v.vector_size
| T_unknown_builtin _ ->
inner buf var
and len indent buf = function
| No_length -> ()
| Length_cst c -> Z.bprint buf c
| Length_expr e -> c_buf_expr indent buf e
and c_buf_type indent (var:string) (buf:Buffer.t) (t:typ) =
c_buf_type_qual indent var buf (t,no_qual)
and c_buf_expr_unary prio indent buf pre e post =
bp buf "%s%a%s"
pre (bp_paren (prio_expr e < prio) (c_buf_expr indent)) e post
and c_buf_expr_binary_left prio indent buf pre e1 mid e2 post =
bp buf "%s%a%s%a%s"
pre (bp_paren (force_paren prio || prio_expr e1 < prio) (c_buf_expr indent)) e1
mid (bp_paren (force_paren prio || prio_expr e2 <= prio) (c_buf_expr indent)) e2 post
and c_buf_expr_binary_right prio indent buf pre e1 mid e2 post =
bp buf "%s%a%s%a%s"
pre (bp_paren (force_paren prio || prio_expr e1 <= prio) (c_buf_expr indent)) e1
mid (bp_paren (force_paren prio || prio_expr e2 < prio) (c_buf_expr indent)) e2 post
and c_buf_expr indent buf ((e,t,_) as ee:expr) =
let prio = prio_expr ee in
match e with
| E_conditional (e1,e2,e3) ->
bp buf "%a ? %a : %a"
(bp_paren (prio_expr e1 <= prio) (c_buf_expr indent)) e1
(bp_paren (prio_expr e2 <= prio) (c_buf_expr indent)) e2
(bp_paren (prio_expr e3 <= prio) (c_buf_expr indent)) e3
| E_binary_conditional (e1,e2) ->
bp buf "%a ? : %a"
(bp_paren (prio_expr e1 <= prio) (c_buf_expr indent)) e1
(bp_paren (prio_expr e2 <= prio) (c_buf_expr indent)) e2
| E_array_subscript (e1,e2) ->
bp buf "%a[%a]"
(bp_paren (prio_expr e1 < prio) (c_buf_expr indent)) e1
(c_buf_expr indent) e2
| E_member_access (e1,_,n) ->
c_buf_expr_unary prio indent buf "" e1 ("."^n)
| E_arrow_access (e1,_,n) ->
c_buf_expr_unary prio indent buf "" e1 ("->"^n)
| E_compound_assign (e1,_,op,e2,_) ->
c_buf_expr_binary_right prio indent buf "" e1 (" "^(string_of_binary_arithmetic op)^"= ") e2 ""
| E_binary (op,e1,e2) ->
c_buf_expr_binary_left prio indent buf "" e1 (" "^(string_of_binary_operator op)^" ") e2 ""
| E_assign (e1,e2) ->
c_buf_expr_binary_right prio indent buf "" e1 " = " e2 ""
| E_comma (e1,e2) ->
c_buf_expr_binary_left prio indent buf "" e1 ", " e2 ""
| E_unary (op,e1) ->
c_buf_expr_unary prio indent buf ((string_of_unary_operator op)^" ") e1 ""
| E_increment (op,dir,e1) ->
let inc = string_of_inc_direction op in
let pre,post = if dir = PRE then inc,"" else "",inc in
c_buf_expr_unary prio indent buf pre e1 post
| E_address_of e1 ->
c_buf_expr_unary prio indent buf "&" e1 ""
| E_deref e1 ->
c_buf_expr_unary prio indent buf "*" e1 ""
| E_cast (e1,IMPLICIT) when ignore_implicit_casts ->
c_buf_expr indent buf e1
| E_cast (e1,ex) ->
bp buf "(%a)%a"
(c_buf_type_qual indent "") t
(bp_paren (prio_expr e1 < prio) (c_buf_expr indent)) e1
| E_call (e1,el) ->
bp buf "%a(%a)"
(bp_paren (prio_expr e1 < prio) (c_buf_expr indent)) e1
(bp_array (fun buf ee -> bp_paren (is_comma ee) (c_buf_expr indent) buf ee) ", ") el
| E_character_literal (c,_) ->
if c >= Z.of_int 32 && c < Z.of_int 127
then bp buf "'%a'" c_buf_char_literal (Char.chr (Z.to_int c))
else Z.bprint buf c
| E_integer_literal c ->
Z.bprint buf c;
bp_str buf (integer_suffix (as_int_type t))
| E_float_literal s ->
bp_str buf s;
bp_str buf (float_suffix (as_float_type t))
| E_string_literal (s,_) ->
bp buf "\"%a\""c_buf_string_literal s
| E_compound_literal i ->
bp buf "(%a){ %a }"
(c_buf_type_qual indent "") t
(c_buf_init indent) i
| E_variable v -> bp_str buf v.var_unique_name
| E_function f -> bp_str buf f.func_unique_name
| E_predefined s -> bp buf "/* predefined */ \"%a\""c_buf_string_literal s
| E_statement b ->
bp buf "({ %a })"
(c_buf_statement_list indent) b.blk_stmts
| E_var_args e1 ->
bp buf "__builtin_va_arg(%a,%a)"
(bp_paren (is_comma e1) (c_buf_expr indent)) e1 (c_buf_type indent "") (fst t)
| E_atomic (i,e1,e2) ->
bp buf "__atomic_%i_TODO(%a,%a)"
i
(bp_paren (is_comma e1) (c_buf_expr indent)) e1
(bp_paren (is_comma e2) (c_buf_expr indent)) e2
| E_convert_vector e ->
bp buf "__builtin_convertvector(%a,%a)"
(bp_paren (is_comma e) (c_buf_expr indent)) e
(c_buf_type indent "") (fst t)
| E_vector_element (e,s) ->
bp buf "%a.%s"
(bp_paren (is_comma e) (c_buf_expr indent)) e
s
| E_shuffle_vector ea ->
bp buf "__builtin_suffle(%a)"
(bp_array (fun buf ee -> bp_paren (is_comma ee) (c_buf_expr indent) buf ee) ", ") ea
and c_buf_expr_bool indent buf e =
bp buf "%a" (bp_paren (prio_expr e == 1) (c_buf_expr indent)) e
and c_buf_char_literal buf c =
let o = Char.code c in
if c = '\n' then bp_str buf "\\n"
else if c = '\\' then bp_str buf "\\\\"
else if c = '"' then bp_str buf "\\\""
else if c = '\'' then bp_str buf "\\\'"
else if o = 0 then bp_str buf "\\0"
else if o < 32 || o >= 127 then bp buf "\\x%02x" o
else bp_char buf c
and c_buf_string_literal buf s =
String.iter (c_buf_char_literal buf) s
and c_buf_init indent buf i = match i with
| I_init_expr e -> c_buf_expr indent buf e
| I_init_list (l,o) ->
bp buf "{ %a }" (bp_list (c_buf_init indent) ", ") l
| I_init_implicit tq ->
bp_str buf "/*implicit*/"
and c_buf_statement_list indent buf l =
List.iter (c_buf_statement indent buf) l
and c_buf_block indent buf blk = match blk.blk_stmts with
| [] -> bp_str buf ";\n"
| l -> bp buf "{\n%a%a%s}\n" (c_buf_statement_list (inc_indent indent)) l (c_buf_scope (inc_indent indent)) blk indent
and c_buf_scope indent buf blk =
let p buf v = bp_str buf v.var_unique_name in
if not print_scope || blk.blk_local_vars = [] then ()
else bp buf "%s/* to remove: %a */\n" indent (bp_list p ",") blk.blk_local_vars
and c_buf_update buf upd =
let p buf v = bp_str buf v.var_unique_name in
if print_scope && upd.scope_var_removed <> []
then bp buf " /* to remove: %a */" (bp_list p ",") upd.scope_var_removed;
if print_scope && upd.scope_var_added <> []
then bp buf " /* to add: %a */" (bp_list p ",") upd.scope_var_added
and c_buf_for_init indent buf b =
match b.blk_stmts with
| [] -> ()
| [S_local_declaration v,_] -> c_buf_var_decl_inner indent buf v
| [S_expression e,_] -> c_buf_expr indent buf e
| _ -> c_buf_expr indent buf (E_statement b, (T_void, no_qual), empty_range)
and c_buf_statement indent buf ((s,r):statement) =
let indent2 = inc_indent indent in
match s with
| S_local_declaration v ->
c_buf_var_decl indent buf v
| S_expression e ->
bp buf "%s%a;\n" indent (c_buf_expr indent2) e
| S_block l ->
bp buf "%s{\n%a%a%s}\n" indent (c_buf_statement_list indent2) l.blk_stmts (c_buf_scope indent2) l indent
| S_if (e1,b1, { blk_stmts=[] } ) ->
bp buf "%sif (%a) %a"
indent (c_buf_expr_bool indent2) e1
(c_buf_block indent) b1
| S_if (e1,b1,b2) ->
bp buf "%sif (%a) %a%selse %a"
indent (c_buf_expr_bool indent2) e1
(c_buf_block indent) b1
indent
(c_buf_block indent) b2
| S_while (e1,b1) ->
bp buf "%swhile (%a) %a"
indent (c_buf_expr_bool indent2) e1
(c_buf_block indent) b1
| S_do_while (b1,e1) ->
bp buf "%sdo %a%swhile (%a);\n"
indent (c_buf_block indent) b1
indent (c_buf_expr_bool indent2) e1
| S_for (b1,e1,e2,b2) ->
bp buf "%sfor (%a; %a; %a) %a" indent
(c_buf_for_init indent2) b1
(bp_option "" (c_buf_expr_bool indent2)) e1
(bp_option "" (c_buf_expr indent2)) e2
(c_buf_block indent) b2
| S_jump (S_goto (s,u)) -> bp buf "%sgoto %s;%a\n" indent s c_buf_update u
| S_jump (S_break u) -> bp buf "%sbreak;%a\n" indent c_buf_update u
| S_jump (S_continue u) -> bp buf "%scontinue;%a\n" indent c_buf_update u
| S_jump (S_return (e1, u)) ->
bp buf "%sreturn %a;%a\n"
indent (bp_option "" (c_buf_expr indent2)) e1 c_buf_update u
| S_jump (S_switch (e1,b1)) ->
bp buf "%sswitch (%a) {\n%a%a%s}\n" indent
(c_buf_expr indent2) e1 (c_buf_statement_list indent) b1.blk_stmts (c_buf_scope indent) b1 indent
| S_target (S_label s) -> bp buf "%s%s:;\n" indent s
| S_target (S_case ([e1], u)) ->
bp buf "%scase %a:;%a\n"
indent (c_buf_expr indent2) e1 c_buf_update u
| S_target (S_case ([], u)) -> assert false
| S_target (S_case (e1::tl, u)) ->
bp buf "%scase %a:;%a\n"
indent (c_buf_expr indent2) e1
(c_buf_statement indent) (S_target (S_case (tl, u)), r)
| S_target (S_default u) -> bp buf "%sdefault:;%a\n" indent c_buf_update u
| S_asm a ->
bp buf "%s__asm__%s%s(\"%a\" : %a %s %a %s %a %s %a);"
indent
(if a.asm_is_volatile then " __volatile__ " else "")
(if Array.length a.asm_labels > 0 then " goto " else "")
c_buf_string_literal a.asm_body
(bp_array (fun buf o ->
bp buf "\"%a\" (%a)"
c_buf_string_literal o.asm_output_string
(c_buf_expr indent2) o.asm_output_expr
) ", "
) a.asm_outputs
(if Array.length a.asm_inputs = 0 then "" else ":")
(bp_array (fun buf o ->
bp buf "\"%a\" (%a)"
c_buf_string_literal o.asm_input_string
(c_buf_expr indent2) o.asm_input_expr
) ", "
) a.asm_inputs
(if Array.length a.asm_clobbers = 0 then "" else ":")
(bp_array (fun buf c -> bp buf "\"%a\"" c_buf_string_literal c) ", ") a.asm_clobbers
(if Array.length a.asm_labels = 0 then "" else ":")
(bp_array (fun buf c -> bp buf "%s" c) ", ") a.asm_labels
and c_buf_com indent buf v =
if !print_comments
then List.iter (fun c -> bp buf "%s%s\n" indent c.Clang_AST.com_text) v
and c_buf_var_decl_inner indent buf v =
let indent2 = inc_indent indent in
bp buf "%s%a"
(if variable_is_static v.var_kind then "static " else "")
(c_buf_type_qual indent2 v.var_unique_name) v.var_type;
(match v.var_init with
| None -> ()
| Some i -> bp buf " = %a" (c_buf_init indent2) i
)
and c_buf_var_decl indent buf v =
if variable_is_global v.var_kind
then bp_loc indent buf v.var_range;
c_buf_com indent buf v.var_com;
bp buf "%s%a;\n" indent (c_buf_var_decl_inner indent) v
and c_buf_var_advance_decl indent buf v =
if variable_is_global v.var_kind
then bp_loc indent buf v.var_range;
c_buf_com indent buf v.var_com;
bp buf "%s%s%a;\n" indent
(if v.var_kind = Variable_extern then "extern " else "")
(c_buf_var_decl_inner indent) { v with var_init = None; }
and c_buf_func_decl indent buf f =
let indent2 = inc_indent indent in
bp_loc indent buf f.func_range;
c_buf_com indent buf (List.map fst f.func_com);
let variadic = if f.func_variadic then if f.func_parameters= [||] then "..." else ", ..." else ""
and param buf v = c_buf_type_qual indent v.var_unique_name buf v.var_type in
let inner buf var = bp buf "%a(%a%s)" bp_str var (bp_array param ", ") f.func_parameters variadic
in
if f.func_is_static then bp_str buf "static ";
c_buf_type_base buf f.func_return;
bp_str buf " ";
c_buf_type_suffix buf f.func_unique_name indent false inner f.func_return;
(match f.func_body with
| None -> bp_str buf ";\n"
| Some l -> bp buf "\n%s{\n%a%a%s}\n" indent (c_buf_statement_list indent2) l.blk_stmts (c_buf_scope indent2) l indent
)
and c_buf_func_proto indent buf f =
c_buf_func_decl indent buf { f with func_body = None; }
let c_buf_enum_decl indent buf e =
let indent2 = inc_indent indent in
let f buf v =
c_buf_com indent buf v.enum_val_com;
bp buf "%s%s = %a,\n" indent2 v.enum_val_unique_name Z.bprint v.enum_val_value
in
bp_loc indent buf e.enum_range;
c_buf_com indent buf e.enum_com;
if e.enum_defined then
bp buf "%senum %s { /* type: %s */\n%a%s};\n" indent
e.enum_unique_name
(match e.enum_integer_type with
| None -> "None"
| Some s -> string_of_integer_type s)
(bp_list f "") e.enum_values
indent
else
bp buf "%senum %s;\n" indent e.enum_unique_name
let c_buf_record_decl indent buf r =
let indent2 = inc_indent indent in
let f buf v =
c_buf_com indent buf v.field_com;
bp buf "%s%a;\n" indent2
(c_buf_type_qual indent2 v.field_name) v.field_type
in
bp_loc indent buf r.record_range;
c_buf_com indent buf r.record_com;
if r.record_defined then
bp buf "%s%s %s { /* sizeof: %a, alignof: %a */\n%a%s};\n" indent
(string_of_record_kind r.record_kind)
r.record_unique_name
Z.bprint r.record_sizeof
Z.bprint r.record_alignof
(bp_array f "") r.record_fields
indent
else
bp buf "%s%s %s;\n" indent
(string_of_record_kind r.record_kind)
r.record_unique_name
let c_buf_typedef indent buf t =
let indent2 = inc_indent indent in
bp_loc indent buf t.typedef_range;
c_buf_com indent buf t.typedef_com;
bp buf "%stypedef %a;\n" indent
(c_buf_type_qual indent2 t.typedef_unique_name) t.typedef_def
let string_of_var_decl = string_from_buffer (c_buf_var_decl "")
let string_of_var_advance_decl = string_from_buffer (c_buf_var_advance_decl "")
let string_of_func_decl = string_from_buffer (c_buf_func_decl "")
let string_of_func_proto = string_from_buffer (c_buf_func_proto "")
let string_of_expr = string_from_buffer (c_buf_expr "")
let string_of_type = string_from_buffer (c_buf_type "" "")
let string_of_type_qual = string_from_buffer (c_buf_type_qual "" "")
let string_of_string_literal = string_from_buffer c_buf_string_literal
let string_of_enum_decl = string_from_buffer (c_buf_enum_decl "")
let string_of_record_decl = string_from_buffer (c_buf_record_decl "")
let string_of_typedef = string_from_buffer (c_buf_typedef "")
let string_of_statement = string_from_buffer (c_buf_statement "")
(** {2 Full source printing} *)
let builtin_typedef =
["__NSConstantString"; "__builtin_va_list"; "__uint128_t"; "__u128"]
let builtin_funcs =
["__builtin_va_start"; "__builtin_va_end"; "__builtin_va_copy"; "__sigsetjmp";
"_gl_verify_function2"; "_gl_verify_function3"; "_gl_verify_function4";
"_gl_verify_function5"; "_gl_verify_function6"; "_gl_verify_function7";
"_gl_verify_function8"; "_gl_verify_function9"; "_gl_verify_function10";
"_gl_verify_function11"; "_gl_verify_function12"; "_gl_verify_function13";
"_gl_verify_function14";
"__builtin_mul_overflow";
"__atomic_is_lock_free";
]
let print_types_ordered
(ch:out_channel)
(td_omit:string list) (td:typedef StringMap.t)
(re_omit:string list) (re:record_type StringMap.t) =
let black, gray = Hashtbl.create 16, Hashtbl.create 16 in
let rec typedef t =
let rec explore t = match t with
| T_typedef t -> typedef t
| T_void | T_bool | T_integer _ | T_float _ | T_complex _ -> ()
| T_pointer (t,_) -> explore t
| T_array ((t,_),_) ->
explore t;
let rec def = function
| T_typedef tt -> def (fst tt.typedef_def)
| T_record r -> record true r
| T_array ((tt,_),_) -> def tt
| _ -> ()
in
def t
| T_bitfield (t,_) -> explore t
| T_function None -> ()
| T_function (Some f) ->
explore (fst f.ftype_return);
List.iter (fun (t,_) -> explore t) f.ftype_params
| T_builtin_fn -> ()
| T_record r -> ()
| T_enum _ -> ()
| T_vector v -> explore (fst v.vector_type)
| T_unknown_builtin _ -> ()
in
if not (Hashtbl.mem black t.typedef_uid) then (
if Hashtbl.mem gray t.typedef_uid then invalid_arg "cyclic type dependencies";
Hashtbl.add gray t.typedef_uid ();
if not (List.mem t.typedef_org_name td_omit) then (
explore (fst t.typedef_def);
output_string ch (string_of_typedef t);
);
Hashtbl.add black t.typedef_uid ()
)
and record mustdef r =
let rec explore mustdef t = match t with
| T_typedef t -> explore mustdef (fst t.typedef_def)
| T_void | T_bool | T_integer _ | T_float _ | T_complex _ -> ()
| T_pointer (t,_) -> explore false t
| T_array ((t,_),_) -> explore mustdef t
| T_bitfield (t,_) -> explore mustdef t
| T_function None -> ()
| T_function (Some f) ->
explore true (fst f.ftype_return);
List.iter (fun (t,_) -> explore true t) f.ftype_params
| T_builtin_fn -> ()
| T_record r -> if mustdef then record true r
| T_enum _ -> ()
| T_vector v -> explore mustdef (fst v.vector_type)
| T_unknown_builtin _ -> ()
in
if not (Hashtbl.mem black r.record_uid) then (
if Hashtbl.mem gray r.record_uid then invalid_arg "cyclic type dependencies";
Hashtbl.add gray r.record_uid ();
if not (List.mem r.record_org_name re_omit) then (
Array.iter (fun f -> explore mustdef (fst f.field_type)) r.record_fields;
output_string ch (string_of_record_decl r)
);
Hashtbl.add black r.record_uid ();
)
in
StringMap.iter (fun _ -> typedef) td;
StringMap.iter (fun _ -> record true) re
let print_project ?(verbose = true) (ch:out_channel) (p:project) =
let old_pl, old_pc = !print_loc, !print_comments in
if not verbose then (
print_loc := false;
print_comments := false;
);
let pr f _ x = output_string ch (f x) in
let pf = Printf.fprintf in
output_string ch "\n/* enum definitions */\n\n";
StringMap.iter (pr string_of_enum_decl) p.proj_enums;
output_string ch "\n/* struct and union declarations */\n\n";
StringMap.iter
(fun _ r ->
pf ch "%s %s;\n" (string_of_record_kind r.record_kind) r.record_unique_name
) p.proj_records;
output_string ch "\n/* struct, union and typedefs */\n\n";
print_types_ordered ch builtin_typedef p.proj_typedefs [] p.proj_records;
let vars = StringMap.filter (fun _ v -> variable_is_global v.var_kind) p.proj_vars in
output_string ch "\n/* global variable declarations */\n\n";
StringMap.iter (pr string_of_var_advance_decl) vars;
output_string ch "\n/* function declarations */\n\n";
let funcs = StringMap.filter (fun _ f -> not (List.mem f.func_org_name builtin_funcs)) p.proj_funcs in
StringMap.iter (pr string_of_func_proto) funcs;
output_string ch "\n/* global variable definitions */\n\n";
let vars = StringMap.filter (fun _ v -> v.var_init <> None) vars in
StringMap.iter (pr string_of_var_decl) vars;
output_string ch "\n/* functions definitions */\n\n";
let funcs = StringMap.filter (fun _ v -> v.func_body <> None) funcs in
StringMap.iter (pr string_of_func_decl) funcs;
if not verbose then (
print_loc := old_pl;
print_comments := old_pc;
)