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[PATCH 2/4] Fortran, typeprint: Take level of details into account when printing elements of a structure.


According to the typeprint's description, elements of a structure
should not be printed when show is <= -1.
This variable is also used to distinguish the level of details
between "ptype" and "whatis" expressions.

Before:
(gdb) whatis t1v
type = Type t1
    integer(kind=4) :: t1_i
    real(kind=4) :: t1_r
End Type t1

After:
(gdb) whatis t1v
type = Type t1

2016-05-09  Bernhard Heckel  <bernhard.heckel@intel.com>

gdb/Changelog:
	* f-typeprint.c (f_type_print_base): Don't print structure fields when show is <= -1.

gdb/testsuite/Changelog:
	* gdb.fortran/whatis_type.exp: Adapt expected output.

---
 gdb/f-typeprint.c                         | 27 ++++++++++++++++-----------
 gdb/testsuite/gdb.fortran/whatis_type.exp | 13 ++-----------
 2 files changed, 18 insertions(+), 22 deletions(-)

diff --git a/gdb/f-typeprint.c b/gdb/f-typeprint.c
index 1990e1b..49f374a 100644
--- a/gdb/f-typeprint.c
+++ b/gdb/f-typeprint.c
@@ -364,19 +364,24 @@ f_type_print_base (struct type *type, struct ui_file *stream, int show,
       else
 	fprintfi_filtered (level, stream, "Type ");
       fputs_filtered (TYPE_TAG_NAME (type), stream);
-      fputs_filtered ("\n", stream);
-      for (index = 0; index < TYPE_NFIELDS (type); index++)
+      /* According to the definition,
+         we only print structure elements in case show >= 0.  */
+      if (show >= 0)
 	{
-	  f_type_print_base (TYPE_FIELD_TYPE (type, index), stream, show,
-			     level + 4);
-	  fputs_filtered (" :: ", stream);
-	  fputs_filtered (TYPE_FIELD_NAME (type, index), stream);
-	  f_type_print_varspec_suffix (TYPE_FIELD_TYPE (type, index),
-				       stream, 0, 0, 0, 0);
 	  fputs_filtered ("\n", stream);
-	} 
-      fprintfi_filtered (level, stream, "End Type ");
-      fputs_filtered (TYPE_TAG_NAME (type), stream);
+	  for (index = 0; index < TYPE_NFIELDS (type); index++)
+	    {
+	      f_type_print_base (TYPE_FIELD_TYPE (type, index), stream, show - 1,
+				 level + 4);
+	      fputs_filtered (" :: ", stream);
+	      fputs_filtered (TYPE_FIELD_NAME (type, index), stream);
+	      f_type_print_varspec_suffix (TYPE_FIELD_TYPE (type, index),
+					   stream, 0, 0, 0, 0);
+	      fputs_filtered ("\n", stream);
+	    }
+	  fprintfi_filtered (level, stream, "End Type ");
+	  fputs_filtered (TYPE_TAG_NAME (type), stream);
+	}
       break;
 
     case TYPE_CODE_MODULE:
diff --git a/gdb/testsuite/gdb.fortran/whatis_type.exp b/gdb/testsuite/gdb.fortran/whatis_type.exp
index edaf4fd..2caebe6 100644
--- a/gdb/testsuite/gdb.fortran/whatis_type.exp
+++ b/gdb/testsuite/gdb.fortran/whatis_type.exp
@@ -38,17 +38,8 @@ gdb_continue_to_breakpoint "bp1"
 set t1_i "$int :: t1_i"
 set t1_r "$real :: t1_r"
 
-gdb_test "whatis t1" \
-    [multi_line "type = Type t1" \
-	"    $t1_i" \
-	"    $t1_r" \
-	"End Type t1"]
-
-gdb_test "whatis t1v" \
-    [multi_line "type = Type t1" \
-	"    $t1_i" \
-	"    $t1_r" \
-	"End Type t1"]
+gdb_test "whatis t1" "type = Type t1"
+gdb_test "whatis t1v" "type = Type t1"
 
 gdb_test "ptype t1" \
     [multi_line "type = Type t1" \
-- 
2.7.1.339.g0233b80


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