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From: Tom Tromey <tom@tromey.com>
To: gdb-patches@sourceware.org
Subject: [PATCH 35/47] Turn value_copy into a method
Date: Thu, 09 Feb 2023 14:38:56 -0700	[thread overview]
Message-ID: <20230209-submit-value-fixups-2023-v1-35-55dc2794dbb9@tromey.com> (raw)
In-Reply-To: <20230209-submit-value-fixups-2023-v1-0-55dc2794dbb9@tromey.com>

This turns value_copy into a method of value.  Much of this was
written by script.
---
 gdb/ada-lang.c              |  8 +++----
 gdb/ada-valprint.c          |  2 +-
 gdb/breakpoint.c            |  2 +-
 gdb/dwarf2/loc.c            |  2 +-
 gdb/guile/scm-math.c        |  2 +-
 gdb/python/py-prettyprint.c |  2 +-
 gdb/python/py-value.c       |  4 ++--
 gdb/valops.c                | 14 +++++------
 gdb/value.c                 | 58 ++++++++++++++++++++++-----------------------
 gdb/value.h                 |  7 ++++--
 10 files changed, 51 insertions(+), 50 deletions(-)

diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index c11182a5a0f..e2aa4041263 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -1762,7 +1762,7 @@ thin_data_pntr (struct value *val)
   data_type = lookup_pointer_type (data_type);
 
   if (type->code () == TYPE_CODE_PTR)
-    return value_cast (data_type, value_copy (val));
+    return value_cast (data_type, val->copy ());
   else
     return value_from_longest (data_type, val->address ());
 }
@@ -2190,7 +2190,7 @@ ada_coerce_to_simple_array_ptr (struct value *arr)
 
       if (arrType == NULL)
 	return NULL;
-      return value_cast (arrType, value_copy (desc_data (arr)));
+      return value_cast (arrType, desc_data (arr)->copy ());
     }
   else if (ada_is_constrained_packed_array_type (arr->type ()))
     return decode_constrained_packed_array (arr);
@@ -2920,7 +2920,7 @@ ada_value_assign (struct value *toval, struct value *fromval)
 		    bits, is_big_endian);
       write_memory_with_notification (to_addr, buffer, len);
 
-      val = value_copy (toval);
+      val = toval->copy ();
       memcpy (val->contents_raw ().data (),
 	      fromval->contents ().data (),
 	      type->length ());
@@ -3073,7 +3073,7 @@ ada_value_ptr_subscript (struct value *arr, int arity, struct value **ind)
       if (type->code () != TYPE_CODE_ARRAY)
 	error (_("too many subscripts (%d expected)"), k);
       arr = value_cast (lookup_pointer_type (type->target_type ()),
-			value_copy (arr));
+			arr->copy ());
       get_discrete_bounds (type->index_type (), &lwb, &upb);
       arr = value_ptradd (arr, pos_atr (ind[k]) - lwb);
       type = type->target_type ();
diff --git a/gdb/ada-valprint.c b/gdb/ada-valprint.c
index a56c8a1de81..16e865c5de6 100644
--- a/gdb/ada-valprint.c
+++ b/gdb/ada-valprint.c
@@ -1028,7 +1028,7 @@ ada_value_print_inner (struct value *val, struct ui_file *stream, int recurse,
   type = ada_check_typedef (resolve_dynamic_type (type, view, address));
   if (type != saved_type)
     {
-      val = value_copy (val);
+      val = val->copy ();
       val->deprecated_set_type (type);
     }
 
diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
index c3524a9c9a1..1ffdb4bf33d 100644
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -4408,7 +4408,7 @@ bpstat::bpstat (const bpstat &other)
     print_it (other.print_it)
 {
   if (other.old_val != NULL)
-    old_val = release_value (value_copy (other.old_val.get ()));
+    old_val = release_value (other.old_val.get ()->copy ());
 }
 
 /* Return a copy of a bpstat.  Like "bs1 = bs2" but all storage that
diff --git a/gdb/dwarf2/loc.c b/gdb/dwarf2/loc.c
index 64a7e035b06..f9706a0bc05 100644
--- a/gdb/dwarf2/loc.c
+++ b/gdb/dwarf2/loc.c
@@ -1538,7 +1538,7 @@ dwarf2_evaluate_loc_desc_full (struct type *type, frame_info_ptr frame,
   value_ref_ptr value_holder = value_ref_ptr::new_reference (retval);
   free_values.free_to_mark ();
 
-  return value_copy (retval);
+  return retval->copy ();
 }
 
 /* The exported interface to dwarf2_evaluate_loc_desc_full; it always
diff --git a/gdb/guile/scm-math.c b/gdb/guile/scm-math.c
index dcbdef5f4b0..5036871c5f1 100644
--- a/gdb/guile/scm-math.c
+++ b/gdb/guile/scm-math.c
@@ -744,7 +744,7 @@ vlscm_convert_typed_value_from_scheme (const char *func_name,
 	      value = NULL;
 	    }
 	  else
-	    value = value_copy (vlscm_scm_to_value (obj));
+	    value = vlscm_scm_to_value (obj)->copy ();
 	}
       else if (gdbscm_is_true (scm_bytevector_p (obj)))
 	{
diff --git a/gdb/python/py-prettyprint.c b/gdb/python/py-prettyprint.c
index 18d2b7f5ba4..dd72e230157 100644
--- a/gdb/python/py-prettyprint.c
+++ b/gdb/python/py-prettyprint.c
@@ -663,7 +663,7 @@ gdbpy_get_varobj_pretty_printer (struct value *value)
 {
   try
     {
-      value = value_copy (value);
+      value = value->copy ();
     }
   catch (const gdb_exception &except)
     {
diff --git a/gdb/python/py-value.c b/gdb/python/py-value.c
index 26cbac3586c..f339845c272 100644
--- a/gdb/python/py-value.c
+++ b/gdb/python/py-value.c
@@ -1900,13 +1900,13 @@ convert_value_from_python (PyObject *obj)
 				   builtin_type_pychar);
 	}
       else if (PyObject_TypeCheck (obj, &value_object_type))
-	value = value_copy (((value_object *) obj)->value);
+	value = ((value_object *) obj)->value->copy ();
       else if (gdbpy_is_lazy_string (obj))
 	{
 	  PyObject *result;
 
 	  result = PyObject_CallMethodObjArgs (obj, gdbpy_value_cst,  NULL);
-	  value = value_copy (((value_object *) result)->value);
+	  value = ((value_object *) result)->value->copy ();
 	}
       else
 	PyErr_Format (PyExc_TypeError,
diff --git a/gdb/valops.c b/gdb/valops.c
index efe75e12da6..93e58d1d168 100644
--- a/gdb/valops.c
+++ b/gdb/valops.c
@@ -325,7 +325,7 @@ value_cast_pointers (struct type *type, struct value *arg2,
     }
 
   /* No superclass found, just change the pointer type.  */
-  arg2 = value_copy (arg2);
+  arg2 = arg2->copy ();
   arg2->deprecated_set_type (type);
   arg2->set_enclosing_type (type);
   arg2->set_pointed_to_offset (0);	/* pai: chk_val */
@@ -428,7 +428,7 @@ value_cast (struct type *type, struct value *arg2)
 	 value completely.  */
       if (arg2->type () != type)
 	{
-	  arg2 = value_copy (arg2);
+	  arg2 = arg2->copy ();
 	  arg2->deprecated_set_type (type);
 	}
       return arg2;
@@ -647,7 +647,7 @@ value_cast (struct type *type, struct value *arg2)
       if (code1 == TYPE_CODE_PTR && code2 == TYPE_CODE_PTR)
 	return value_cast_pointers (to_type, arg2, 0);
 
-      arg2 = value_copy (arg2);
+      arg2 = arg2->copy ();
       arg2->deprecated_set_type (to_type);
       arg2->set_enclosing_type (to_type);
       arg2->set_pointed_to_offset (0);	/* pai: chk_val */
@@ -1342,7 +1342,7 @@ value_assign (struct value *toval, struct value *fromval)
   /* The return value is a copy of TOVAL so it shares its location
      information, but its contents are updated from FROMVAL.  This
      implies the returned value is not lazy, even if TOVAL was.  */
-  val = value_copy (toval);
+  val = toval->copy ();
   val->set_lazy (0);
   copy (fromval->contents (), val->contents_raw ());
 
@@ -1572,7 +1572,7 @@ value_addr (struct value *arg1)
 	  struct type *enclosing_type_ptr
 	    = lookup_pointer_type (enclosing_type->target_type ());
 
-	  arg2 = value_copy (arg1);
+	  arg2 = arg1->copy ();
 	  arg2->deprecated_set_type (type_ptr);
 	  arg2->set_enclosing_type (enclosing_type_ptr);
 
@@ -2107,7 +2107,7 @@ struct_field_searcher::search (struct value *arg1, LONGEST offset,
 	    }
 	  else
 	    {
-	      v2 = value_copy (arg1);
+	      v2 = arg1->copy ();
 	      v2->deprecated_set_type (basetype);
 	      v2->set_embedded_offset (boffset);
 	    }
@@ -3958,7 +3958,7 @@ value_full_object (struct value *argp,
   /* pai: FIXME -- sounds iffy */
   if (full)
     {
-      argp = value_copy (argp);
+      argp = argp->copy ();
       argp->set_enclosing_type (real_type);
       return argp;
     }
diff --git a/gdb/value.c b/gdb/value.c
index 81199ab4b9a..98078ed44d2 100644
--- a/gdb/value.c
+++ b/gdb/value.c
@@ -1389,46 +1389,44 @@ value_release_to_mark (const struct value *mark)
   return result;
 }
 
-/* Return a copy of the value ARG.
-   It contains the same contents, for same memory address,
-   but it's a different block of storage.  */
+/* See value.h.  */
 
 struct value *
-value_copy (const value *arg)
+value::copy () const
 {
-  struct type *encl_type = arg->enclosing_type ();
+  struct type *encl_type = enclosing_type ();
   struct value *val;
 
-  if (arg->lazy ())
+  if (lazy ())
     val = value::allocate_lazy (encl_type);
   else
     val = value::allocate (encl_type);
-  val->m_type = arg->m_type;
-  VALUE_LVAL (val) = arg->m_lval;
-  val->m_location = arg->m_location;
-  val->m_offset = arg->m_offset;
-  val->m_bitpos = arg->m_bitpos;
-  val->m_bitsize = arg->m_bitsize;
-  val->m_lazy = arg->m_lazy;
-  val->m_embedded_offset = arg->embedded_offset ();
-  val->m_pointed_to_offset = arg->m_pointed_to_offset;
-  val->m_modifiable = arg->m_modifiable;
-  val->m_stack = arg->m_stack;
-  val->m_is_zero = arg->m_is_zero;
-  val->m_initialized = arg->m_initialized;
-  val->m_unavailable = arg->m_unavailable;
-  val->m_optimized_out = arg->m_optimized_out;
+  val->m_type = m_type;
+  VALUE_LVAL (val) = m_lval;
+  val->m_location = m_location;
+  val->m_offset = m_offset;
+  val->m_bitpos = m_bitpos;
+  val->m_bitsize = m_bitsize;
+  val->m_lazy = m_lazy;
+  val->m_embedded_offset = embedded_offset ();
+  val->m_pointed_to_offset = m_pointed_to_offset;
+  val->m_modifiable = m_modifiable;
+  val->m_stack = m_stack;
+  val->m_is_zero = m_is_zero;
+  val->m_initialized = m_initialized;
+  val->m_unavailable = m_unavailable;
+  val->m_optimized_out = m_optimized_out;
 
   if (!val->lazy () && !value_entirely_optimized_out (val))
     {
-      gdb_assert (arg->m_contents != nullptr);
-      ULONGEST length = arg->enclosing_type ()->length ();
+      gdb_assert (m_contents != nullptr);
+      ULONGEST length = enclosing_type ()->length ();
       const auto &arg_view
-	= gdb::make_array_view (arg->m_contents.get (), length);
+	= gdb::make_array_view (m_contents.get (), length);
       gdb::copy (arg_view, val->contents_all_raw ());
     }
 
-  val->m_parent = arg->m_parent;
+  val->m_parent = m_parent;
   if (VALUE_LVAL (val) == lval_computed)
     {
       const struct lval_funcs *funcs = val->m_location.computed.funcs;
@@ -1450,7 +1448,7 @@ make_cv_value (int cnst, int voltl, struct value *v)
 {
   struct type *val_type = v->type ();
   struct type *m_enclosing_type = v->enclosing_type ();
-  struct value *cv_val = value_copy (v);
+  struct value *cv_val = v->copy ();
 
   cv_val->deprecated_set_type (make_cv_type (cnst, voltl, val_type, NULL));
   cv_val->set_enclosing_type (make_cv_type (cnst, voltl, m_enclosing_type, NULL));
@@ -1600,7 +1598,7 @@ access_value_history (int num)
 
   absnum--;
 
-  return value_copy (value_history[absnum].get ());
+  return value_history[absnum].get ()->copy ();
 }
 
 /* See value.h.  */
@@ -1926,7 +1924,7 @@ value_of_internalvar (struct gdbarch *gdbarch, struct internalvar *var)
       break;
 
     case INTERNALVAR_VALUE:
-      val = value_copy (var->u.value);
+      val = var->u.value->copy ();
       if (val->lazy ())
 	val->fetch_lazy ();
       break;
@@ -2061,7 +2059,7 @@ set_internalvar (struct internalvar *var, struct value *val)
 
     default:
       new_kind = INTERNALVAR_VALUE;
-      struct value *copy = value_copy (val);
+      struct value *copy = val->copy ();
       copy->m_modifiable = 1;
 
       /* Force the value to be fetched from the target now, to avoid problems
@@ -3998,7 +3996,7 @@ test_value_copy ()
   /* Verify that we can copy an entirely optimized out value, that may not have
      its contents allocated.  */
   value_ref_ptr val = release_value (value::allocate_optimized_out (type));
-  value_ref_ptr copy = release_value (value_copy (val.get ()));
+  value_ref_ptr copy = release_value (val.get ()->copy ());
 
   SELF_CHECK (value_entirely_optimized_out (val.get ()));
   SELF_CHECK (value_entirely_optimized_out (copy.get ()));
diff --git a/gdb/value.h b/gdb/value.h
index 7b034bba1e2..fdecfa99405 100644
--- a/gdb/value.h
+++ b/gdb/value.h
@@ -164,6 +164,11 @@ struct value
   /* Create a value of type TYPE that is zero, and return it.  */
   static struct value *zero (struct type *type, enum lval_type lv);
 
+  /* Return a copy of the value.
+     It contains the same contents, for same memory address,
+     but it's a different block of storage.  */
+  struct value *copy () const;
+
   ~value ();
 
   DISABLE_COPY_AND_ASSIGN (value);
@@ -1413,8 +1418,6 @@ extern void preserve_values (struct objfile *);
 
 /* From values.c */
 
-extern struct value *value_copy (const value *);
-
 extern struct value *value_non_lval (struct value *);
 
 extern void value_force_lval (struct value *, CORE_ADDR);

-- 
2.39.1


  parent reply	other threads:[~2023-02-09 23:36 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-09 21:38 [PATCH 00/47] Use methods for struct value Tom Tromey
2023-02-09 21:38 ` [PATCH 01/47] Rename all fields of " Tom Tromey
2023-02-10 21:05   ` Tom Tromey
2023-02-09 21:38 ` [PATCH 02/47] Move ~value body out-of-line Tom Tromey
2023-02-09 21:38 ` [PATCH 03/47] Move struct value to value.h Tom Tromey
2023-02-09 21:38 ` [PATCH 04/47] Turn value_type into method Tom Tromey
2023-02-09 21:38 ` [PATCH 05/47] Turn deprecated_set_value_type into a method Tom Tromey
2023-02-09 21:38 ` [PATCH 06/47] Turn value_arch into method Tom Tromey
2023-02-10  2:08   ` Simon Marchi
2023-02-10 16:36     ` Tom Tromey
2023-02-09 21:38 ` [PATCH 07/47] Turn value_bitsize " Tom Tromey
2023-02-09 21:38 ` [PATCH 08/47] Turn value_bitpos " Tom Tromey
2023-02-09 21:38 ` [PATCH 09/47] Turn value_parent " Tom Tromey
2023-02-09 21:38 ` [PATCH 10/47] Turn value_offset " Tom Tromey
2023-02-09 21:38 ` [PATCH 11/47] Turn deprecated_value_modifiable " Tom Tromey
2023-02-09 21:38 ` [PATCH 12/47] Turn value_enclosing_type " Tom Tromey
2023-02-09 21:38 ` [PATCH 13/47] Turn some value offset functions " Tom Tromey
2023-02-09 21:38 ` [PATCH 14/47] Turn value_lazy and set_value_lazy functions into methods Tom Tromey
2023-02-09 21:38 ` [PATCH 15/47] Turn value_stack and set_value_stack " Tom Tromey
2023-02-09 21:38 ` [PATCH 16/47] Turn value_computed_closure and value_computed_funcs " Tom Tromey
2023-02-09 21:38 ` [PATCH 17/47] Convert value_lval_const and deprecated_lval_hack to methods Tom Tromey
2023-02-09 21:38 ` [PATCH 18/47] Turn value_initialized and set_value_initialized functions into methods Tom Tromey
2023-02-09 21:38 ` [PATCH 19/47] Turn value_address and set_value_address " Tom Tromey
2023-02-09 21:38 ` [PATCH 20/47] Turn more deprecated_* " Tom Tromey
2023-02-09 21:38 ` [PATCH 21/47] Turn allocate_value_lazy into a static "constructor" Tom Tromey
2023-02-09 21:38 ` [PATCH 22/47] Turn allocate_value " Tom Tromey
2023-02-09 21:38 ` [PATCH 23/47] Turn allocate_computed_value into " Tom Tromey
2023-02-09 21:38 ` [PATCH 24/47] Turn allocate_optimized_out_value " Tom Tromey
2023-02-09 21:38 ` [PATCH 25/47] Turn value_zero " Tom Tromey
2023-02-09 21:38 ` [PATCH 26/47] Turn some value_contents functions into methods Tom Tromey
2023-02-09 21:38 ` [PATCH 27/47] Turn value_fetch_lazy into a method Tom Tromey
2023-02-09 21:38 ` [PATCH 28/47] Turn allocate_value_contents " Tom Tromey
2023-02-09 21:38 ` [PATCH 29/47] Turn value_contents_eq " Tom Tromey
2023-02-10  2:18   ` Simon Marchi
2023-02-10 17:46     ` Tom Tromey
2023-02-09 21:38 ` [PATCH 30/47] Turn value_bits_synthetic_pointer " Tom Tromey
2023-02-09 21:38 ` [PATCH 31/47] Move value_ref_policy methods out-of-line Tom Tromey
2023-02-09 21:38 ` [PATCH 32/47] Turn value_incref and value_decref into methods Tom Tromey
2023-02-09 21:38 ` [PATCH 33/47] Turn remaining value_contents functions " Tom Tromey
2023-02-10  2:24   ` Simon Marchi
2023-02-10 17:46     ` Tom Tromey
2023-02-09 21:38 ` [PATCH 34/47] Fully qualify calls to copy in value.c Tom Tromey
2023-02-09 21:38 ` Tom Tromey [this message]
2023-02-10  2:42   ` [PATCH 35/47] Turn value_copy into a method Simon Marchi
2023-02-10 18:03     ` Tom Tromey
2023-02-09 21:38 ` [PATCH 36/47] Turn many optimized-out value functions into methods Tom Tromey
2023-02-09 21:38 ` [PATCH 37/47] Turn value_non_lval and value_force_lval " Tom Tromey
2023-02-09 21:38 ` [PATCH 38/47] Turn set_value_component_location into method Tom Tromey
2023-02-09 21:39 ` [PATCH 39/47] Change some code to use value methods Tom Tromey
2023-02-09 21:39 ` [PATCH 40/47] Turn some xmethod functions into methods Tom Tromey
2023-02-09 21:39 ` [PATCH 41/47] Turn preserve_one_value into method Tom Tromey
2023-02-09 21:39 ` [PATCH 42/47] Turn various value copying-related functions into methods Tom Tromey
2023-02-10 20:20   ` Tom Tromey
2023-02-09 21:39 ` [PATCH 43/47] Add value::set_modifiable Tom Tromey
2023-02-09 21:39 ` [PATCH 44/47] Make struct value data members private Tom Tromey
2023-02-09 21:39 ` [PATCH 45/47] Make ~value private Tom Tromey
2023-02-09 21:39 ` [PATCH 46/47] Introduce set_lval method on value Tom Tromey
2023-02-09 21:39 ` [PATCH 47/47] Remove deprecated_lval_hack Tom Tromey
2023-02-10  2:54 ` [PATCH 00/47] Use methods for struct value Simon Marchi
2023-02-10 18:08   ` Tom Tromey

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