[Linux-kernel-mentees] [PATCH 21/26] parsing_cocci: pretty_print_cocci: Print ParenType/FunctionType
Jaskaran Singh
jaskaransingh7654321 at gmail.com
Mon Mar 16 10:03:14 UTC 2020
The order of the terms in ParenType require implementing a special
case for ParenType. This case handles only the following:
<type> ( * id [ .* ] ) ( params )
i.e., a function pointer or an array of function pointers, and will fail
for any other cases. This is similar to the function used to print
ParenType in Pretty_print_c.
Signed-off-by: Jaskaran Singh <jaskaransingh7654321 at gmail.com>
---
parsing_cocci/pretty_print_cocci.ml | 57 +++++++++++++++++++++++++++++
1 file changed, 57 insertions(+)
diff --git a/parsing_cocci/pretty_print_cocci.ml b/parsing_cocci/pretty_print_cocci.ml
index 6338e464..ef60106c 100644
--- a/parsing_cocci/pretty_print_cocci.ml
+++ b/parsing_cocci/pretty_print_cocci.ml
@@ -403,6 +403,54 @@ and print_function_pointer (ty,lp1,star,rp1,lp2,params,rp2) fn =
mcode print_string rp1; mcode print_string lp1;
parameter_list params; mcode print_string rp2
+and print_parentype (lp,ty,rp) fn =
+ match Ast.unwrap ty with
+ Ast.Type(_,_,fty1) ->
+ (match Ast.unwrap fty1 with
+ Ast.Pointer(ty1,star) ->
+ (match Ast.unwrap ty1 with
+ Ast.Type(_,_,fty2) ->
+ (match Ast.unwrap fty2 with
+ Ast.FunctionType(ty2,lp2,params,rp2) ->
+ fullType ty2;
+ print_space();
+ mcode print_string lp;
+ mcode print_string star;
+ fn();
+ mcode print_string rp;
+ mcode print_string lp2;
+ parameter_list params;
+ mcode print_string rp2
+ | _ -> failwith "ParenType Pretty_print_cocci")
+ | _ -> failwith "ParenType Pretty_print_cocci")
+ | Ast.Array(ty1,lb1,size1,rb1) ->
+ (match Ast.unwrap ty1 with
+ Ast.Type(_,_,fty2) ->
+ (match Ast.unwrap fty2 with
+ Ast.Pointer(ty2,star) ->
+ (match Ast.unwrap ty2 with
+ Ast.Type(_,_,fty3) ->
+ (match Ast.unwrap fty3 with
+ Ast.FunctionType(ty3,lp3,params,rp3) ->
+ fullType ty3;
+ print_space();
+ mcode print_string lp;
+ mcode print_string star;
+ fn();
+ mcode print_string lb1;
+ print_option expression size1;
+ mcode print_string rb1;
+ mcode print_string rp;
+ mcode print_string lp3;
+ parameter_list params;
+ mcode print_string rp3
+ | _ -> failwith "ParenType Pretty_print_cocci")
+ | _ -> failwith "ParenType Pretty_print_cocci")
+ | _ -> failwith "ParenType Pretty_print_cocci")
+ | _ -> failwith "ParenType Pretty_print_cocci")
+ | _ -> failwith "ParenType Pretty_print_cocci")
+ | _ -> failwith "ParenType Pretty_print_cocci"
+
and varargs = function
| None -> ()
| Some (comma, ellipsis) ->
@@ -424,6 +472,13 @@ and typeC ty =
| Ast.FunctionPointer(ty,lp1,star,rp1,lp2,params,rp2) ->
print_function_pointer (ty,lp1,star,rp1,lp2,params,rp2)
(function _ -> ())
+ | Ast.ParenType(lp,ty,rp) ->
+ print_parentype (lp,ty,rp) (function _ -> ())
+ | Ast.FunctionType(ty,lp,params,rp) ->
+ fullType ty;
+ mcode print_string lp;
+ parameter_list params;
+ mcode print_string rp
| Ast.Array(ty,lb,size,rb) ->
fullType ty; mcode print_string lb; print_option expression size;
mcode print_string rb
@@ -498,6 +553,8 @@ and print_named_type ty id =
| _ -> failwith "complex array types not supported")
| _ -> typeC ty; id(); k () in
loop ty1 (function _ -> ())
+ | Ast.ParenType(lp,ty,rp) ->
+ print_parentype (lp,ty,rp) (function _ -> id())
| _ -> fullType ty; id())
| _ -> fullType ty; id()
--
2.21.1
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