[Cocci] [PATCH 21/26] parsing_cocci: pretty_print_cocci: Print ParenType/FunctionType

[Jaskaran Singh <jaskaransingh7654321@gmail.com>]

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@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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