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From: Tom Tromey <tom@tromey.com>
To: gdb-patches@sourceware.org
Cc: Tom Tromey <tom@tromey.com>
Subject: [PATCH 05/66] Simplify command window creation
Date: Sun, 23 Jun 2019 22:43:00 -0000	[thread overview]
Message-ID: <20190623224329.16060-6-tom@tromey.com> (raw)
In-Reply-To: <20190623224329.16060-1-tom@tromey.com>

make_command_window is never called when *win_info_ptr is non-NULL, so
this patch simplifies the function by removing the parameter and
having it return its result directly.  This in turn makes it more
obvious that a NULL check in show_source_disasm_command can be
removed.

gdb/ChangeLog
2019-06-23  Tom Tromey  <tom@tromey.com>

	* tui/tui-layout.c (make_command_window): Remove win_info_ptr
	parameter.  Return the new window.
	(show_source_disasm_command): Update and remove NULL check.
	(show_source_or_disasm_and_command): Update.
---
 gdb/ChangeLog        |   7 +++
 gdb/tui/tui-layout.c | 146 ++++++++++++++++++++-----------------------
 2 files changed, 76 insertions(+), 77 deletions(-)

diff --git a/gdb/tui/tui-layout.c b/gdb/tui/tui-layout.c
index 695c56012c1..3eddc56578b 100644
--- a/gdb/tui/tui-layout.c
+++ b/gdb/tui/tui-layout.c
@@ -52,7 +52,7 @@ static void show_source_or_disasm_and_command (enum tui_layout_type);
 static void make_source_or_disasm_window (struct tui_win_info **, 
 					  enum tui_win_type, 
 					  int, int);
-static void make_command_window (struct tui_win_info **, int, int);
+static struct tui_win_info *make_command_window (int, int);
 static void make_source_window (struct tui_win_info **, int, int);
 static void make_disasm_window (struct tui_win_info **, int, int);
 static void make_data_window (struct tui_win_info **, int, int);
@@ -540,20 +540,19 @@ prev_layout (void)
 
 
 
-static void
-make_command_window (struct tui_win_info **win_info_ptr, 
-		     int height, int origin_y)
+static struct tui_win_info *
+make_command_window (int height, int origin_y)
 {
-  *win_info_ptr
-    = (struct tui_win_info *) init_and_make_win (*win_info_ptr,
+  struct tui_win_info *result
+    = (struct tui_win_info *) init_and_make_win (NULL,
 						 CMD_WIN,
 						 height,
 						 tui_term_width (),
 						 0,
 						 origin_y,
 						 DONT_BOX_WINDOW);
-
-  (*win_info_ptr)->can_highlight = FALSE;
+  result->can_highlight = FALSE;
+  return result;
 }
 
 
@@ -650,76 +649,69 @@ show_source_disasm_command (void)
 	  tui_make_visible (TUI_SRC_WIN->detail.source_info.execution_info);
 	  TUI_SRC_WIN->detail.source_info.has_locator = FALSE;;
 	}
-      if (TUI_SRC_WIN != NULL)
-	{
-	  struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
 
-	  tui_show_source_content (TUI_SRC_WIN);
-	  if (TUI_DISASM_WIN == NULL)
-	    {
-	      make_disasm_window (&TUI_DISASM_WIN, asm_height, src_height - 1);
-	      locator
-		= ((struct tui_gen_win_info *)
-		   init_and_make_win (locator,
-				      LOCATOR_WIN,
-				      2 /* 1 */ ,
-				      tui_term_width (),
-				      0,
-				      (src_height + asm_height) - 1,
-				      DONT_BOX_WINDOW));
-	    }
-	  else
-	    {
-	      init_gen_win_info (locator,
-				 LOCATOR_WIN,
-				 2 /* 1 */ ,
-				 tui_term_width (),
-				 0,
-				 (src_height + asm_height) - 1);
-	      TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
-	      init_gen_win_info (&TUI_DISASM_WIN->generic,
-				 TUI_DISASM_WIN->generic.type,
-				 asm_height,
-				 TUI_DISASM_WIN->generic.width,
-				 TUI_DISASM_WIN->detail.source_info.execution_info->width,
-				 src_height - 1);
-	      init_gen_win_info (TUI_DISASM_WIN->detail.source_info.execution_info,
-				 EXEC_INFO_WIN,
-				 asm_height,
-				 3,
-				 0,
-				 src_height - 1);
-	      TUI_DISASM_WIN->can_highlight = TRUE;
-	      tui_make_visible (&TUI_DISASM_WIN->generic);
-	      tui_make_visible (TUI_DISASM_WIN->detail.source_info.execution_info);
-	    }
-	  if (TUI_DISASM_WIN != NULL)
-	    {
-	      TUI_SRC_WIN->detail.source_info.has_locator = FALSE;
-	      TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
-	      tui_make_visible (locator);
-	      tui_show_locator_content ();
-	      tui_show_source_content (TUI_DISASM_WIN);
-
-	      if (TUI_CMD_WIN == NULL)
-		make_command_window (&TUI_CMD_WIN,
-				     cmd_height,
-				     tui_term_height () - cmd_height);
-	      else
-		{
-		  init_gen_win_info (&TUI_CMD_WIN->generic,
-				     TUI_CMD_WIN->generic.type,
-				     TUI_CMD_WIN->generic.height,
-				     TUI_CMD_WIN->generic.width,
-				     0,
-				     TUI_CMD_WIN->generic.origin.y);
-		  TUI_CMD_WIN->can_highlight = FALSE;
-		  tui_make_visible (&TUI_CMD_WIN->generic);
-		}
-	      if (TUI_CMD_WIN != NULL)
-		tui_refresh_win (&TUI_CMD_WIN->generic);
-	    }
+      struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
+
+      tui_show_source_content (TUI_SRC_WIN);
+      if (TUI_DISASM_WIN == NULL)
+	{
+	  make_disasm_window (&TUI_DISASM_WIN, asm_height, src_height - 1);
+	  locator
+	    = ((struct tui_gen_win_info *)
+	       init_and_make_win (locator,
+				  LOCATOR_WIN,
+				  2 /* 1 */ ,
+				  tui_term_width (),
+				  0,
+				  (src_height + asm_height) - 1,
+				  DONT_BOX_WINDOW));
+	}
+      else
+	{
+	  init_gen_win_info (locator,
+			     LOCATOR_WIN,
+			     2 /* 1 */ ,
+			     tui_term_width (),
+			     0,
+			     (src_height + asm_height) - 1);
+	  TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
+	  init_gen_win_info (&TUI_DISASM_WIN->generic,
+			     TUI_DISASM_WIN->generic.type,
+			     asm_height,
+			     TUI_DISASM_WIN->generic.width,
+			     TUI_DISASM_WIN->detail.source_info.execution_info->width,
+			     src_height - 1);
+	  init_gen_win_info (TUI_DISASM_WIN->detail.source_info.execution_info,
+			     EXEC_INFO_WIN,
+			     asm_height,
+			     3,
+			     0,
+			     src_height - 1);
+	  TUI_DISASM_WIN->can_highlight = TRUE;
+	  tui_make_visible (&TUI_DISASM_WIN->generic);
+	  tui_make_visible (TUI_DISASM_WIN->detail.source_info.execution_info);
+	}
+      TUI_SRC_WIN->detail.source_info.has_locator = FALSE;
+      TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
+      tui_make_visible (locator);
+      tui_show_locator_content ();
+      tui_show_source_content (TUI_DISASM_WIN);
+
+      if (TUI_CMD_WIN == NULL)
+	TUI_CMD_WIN = make_command_window (cmd_height,
+					   tui_term_height () - cmd_height);
+      else
+	{
+	  init_gen_win_info (&TUI_CMD_WIN->generic,
+			     TUI_CMD_WIN->generic.type,
+			     TUI_CMD_WIN->generic.height,
+			     TUI_CMD_WIN->generic.width,
+			     0,
+			     TUI_CMD_WIN->generic.origin.y);
+	  TUI_CMD_WIN->can_highlight = FALSE;
+	  tui_make_visible (&TUI_CMD_WIN->generic);
 	}
+      tui_refresh_win (&TUI_CMD_WIN->generic);
       tui_set_current_layout_to (SRC_DISASSEM_COMMAND);
     }
 }
@@ -964,7 +956,7 @@ show_source_or_disasm_and_command (enum tui_layout_type layout_type)
 
 	  if (TUI_CMD_WIN == NULL)
 	    {
-	      make_command_window (&TUI_CMD_WIN, cmd_height, src_height);
+	      TUI_CMD_WIN = make_command_window (cmd_height, src_height);
 	      tui_refresh_win (&TUI_CMD_WIN->generic);
 	    }
 	  else
-- 
2.17.2


  parent reply	other threads:[~2019-06-23 22:43 UTC|newest]

Thread overview: 85+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-23 22:43 [PATCH 00/66] Clean up the TUI Tom Tromey
2019-06-23 22:43 ` [PATCH 08/66] Remove tui_list Tom Tromey
2019-06-24 14:12   ` Pedro Alves
2019-06-24 15:12     ` Ruslan Kabatsayev
2019-06-24 16:05       ` Pedro Alves
2019-06-24 20:47     ` Tom Tromey
2019-06-23 22:43 ` [PATCH 01/66] Use new and delete for TUI windows Tom Tromey
2019-06-23 22:43 ` [PATCH 13/66] Remove tui_clear_win_detail Tom Tromey
2019-06-23 22:43 ` [PATCH 10/66] Create tui_disasm_window Tom Tromey
2019-06-23 22:43 ` Tom Tromey [this message]
2019-06-23 22:43 ` [PATCH 12/66] Don't use TUI_DISASM_WIN in tui_disasm_window method Tom Tromey
2019-06-23 22:44 ` [PATCH 27/66] Introduce max_height method Tom Tromey
2019-06-23 22:44 ` [PATCH 06/66] Simplify source and disassembly window creation Tom Tromey
2019-06-23 22:44 ` [PATCH 16/66] Remove struct tui_command_info Tom Tromey
2019-06-23 22:44 ` [PATCH 14/66] Introduce has_locator method Tom Tromey
2019-06-24 14:13   ` Pedro Alves
2019-06-24 20:50     ` Tom Tromey
2019-06-23 22:44 ` [PATCH 22/66] Use bool for visibility Tom Tromey
2019-06-23 22:44 ` [PATCH 19/66] Inline constructors and initializers Tom Tromey
2019-06-23 22:44 ` [PATCH 18/66] Change tui_data_window::display_regs to bool Tom Tromey
2019-06-23 22:44 ` [PATCH 28/66] Remove redundant check from make_visible Tom Tromey
2019-06-23 22:44 ` [PATCH 20/66] Remove an unneeded NULL check Tom Tromey
2019-06-23 22:44 ` [PATCH 15/66] Remove struct tui_source_info Tom Tromey
2019-06-23 22:44 ` [PATCH 03/66] Create subclasses for different window types Tom Tromey
2019-06-24 22:21   ` Pedro Alves
2019-06-25 13:51     ` Tom Tromey
2019-06-23 22:44 ` [PATCH 23/66] Introduce the refresh method Tom Tromey
2019-06-23 22:44 ` [PATCH 11/66] Introduce methods for scrolling Tom Tromey
2019-06-23 22:44 ` [PATCH 07/66] Introduce tui_win_info::clear_detail method Tom Tromey
2019-06-23 22:44 ` [PATCH 29/66] Introduce set_highlight method Tom Tromey
2019-06-23 22:44 ` [PATCH 17/66] Remove struct tui_data_info Tom Tromey
2019-06-23 22:44 ` [PATCH 04/66] Remove an unnecessary NULL check from the TUI Tom Tromey
2019-06-23 22:44 ` [PATCH 09/66] Split the tui_win_info destructor Tom Tromey
2019-06-23 22:44 ` [PATCH 02/66] Add destructor to tui_win_info Tom Tromey
2019-06-23 22:44 ` [PATCH 25/66] Introduce the refresh_all method Tom Tromey
2019-06-23 22:44 ` [PATCH 26/66] Introduce set_new_height method Tom Tromey
2019-06-23 22:44 ` [PATCH 21/66] Introduce make_visible method Tom Tromey
2019-06-23 22:44 ` [PATCH 24/66] Introduce two TUI source window methods Tom Tromey
2019-06-23 23:25 ` [PATCH 41/66] Move make_visible method to tui_gen_win_info Tom Tromey
2019-06-23 23:25 ` [PATCH 42/66] Introduce tui_gen_win_info::reset method Tom Tromey
2019-06-23 23:25 ` [PATCH 45/66] Introduce tui_win_info::update_tab_width Tom Tromey
2019-06-23 23:25 ` [PATCH 34/66] Change tui_update_source_window for better type safety Tom Tromey
2019-06-23 23:25 ` [PATCH 35/66] Introduce tui_gen_win_info::name method Tom Tromey
2019-06-23 23:25 ` [PATCH 40/66] Remove tui_scroll_direction enum Tom Tromey
2019-06-24 14:13   ` Pedro Alves
2019-06-24 20:51     ` Tom Tromey
2019-06-23 23:26 ` [PATCH 32/66] Derive tui_win_info from tui_gen_win_info Tom Tromey
2019-06-23 23:26 ` [PATCH 44/66] Introduce enum tui_box Tom Tromey
2019-06-23 23:26 ` [PATCH 47/66] Don't check window type in tui_set_win_focus_to Tom Tromey
2019-06-23 23:26 ` [PATCH 31/66] Use new and delete for tui_gen_win_info Tom Tromey
2019-06-23 23:26 ` [PATCH 48/66] Remove tui_alloc_win_info Tom Tromey
2019-06-23 23:26 ` [PATCH 49/66] Separate out execution-info window Tom Tromey
2019-06-24 14:13   ` Pedro Alves
2019-06-24 20:52     ` Tom Tromey
2019-06-23 23:26 ` [PATCH 33/66] Introduce refresh_window method Tom Tromey
2019-06-23 23:26 ` [PATCH 39/66] Change more TUI functions to take a tui_source_window_base Tom Tromey
2019-06-23 23:26 ` [PATCH 30/66] Change tui_which_element::data_window to be a pointer Tom Tromey
2019-06-23 23:26 ` [PATCH 37/66] Remove NULL check from tui_set_exec_info_content Tom Tromey
2019-06-23 23:26 ` [PATCH 36/66] Change tui_alloc_source_buffer return type to void Tom Tromey
2019-06-23 23:26 ` [PATCH 46/66] Introduce tui_win_info::make_visible_with_new_height Tom Tromey
2019-06-23 23:26 ` [PATCH 43/66] Remove some TUI static allocations Tom Tromey
2019-06-23 23:26 ` [PATCH 38/66] Change tui_set_exec_info_content to return void Tom Tromey
2019-06-24 14:23 ` [PATCH 00/66] Clean up the TUI Pedro Alves
2019-06-24 16:47   ` Tom Tromey
2019-06-24 17:46     ` Pedro Alves
2019-06-24 18:54     ` Tom Tromey
2019-06-24 22:23       ` Pedro Alves
2019-06-25 13:51         ` Tom Tromey
2019-06-24 18:49 ` [PATCH 50/66] Separate out locator window Tom Tromey
2019-06-24 18:48   ` [PATCH 55/66] Remove tui_init_generic_part Tom Tromey
2019-06-24 18:48   ` [PATCH 53/66] Remove two unused enum constants from tui_win_type Tom Tromey
2019-06-24 18:49   ` [PATCH 65/66] Make tui_gen_win_info constructor protected Tom Tromey
2019-06-24 18:49   ` [PATCH 62/66] Remove union tui_which_element Tom Tromey
2019-06-24 18:49   ` [PATCH 57/66] Remove "data_content" and "data_content_count" from TUI data window Tom Tromey
2019-06-24 18:49   ` [PATCH 61/66] More type safety for TUI source window functions Tom Tromey
2019-06-24 18:49   ` [PATCH 64/66] Fix latent bug in set_is_exec_point_at Tom Tromey
2019-06-24 18:49   ` [PATCH 51/66] Remove layout_def::split Tom Tromey
2019-06-24 18:49   ` [PATCH 66/66] Tidy tui_delete_win Tom Tromey
2019-06-24 18:49   ` [PATCH 56/66] Turn tui_first_data_item_displayed into a method Tom Tromey
2019-06-24 18:49   ` [PATCH 59/66] Fix "auxiliary" typo Tom Tromey
2019-06-24 18:49   ` [PATCH 63/66] Remove NULL checks before xfree Tom Tromey
2019-06-24 18:49   ` [PATCH 58/66] Separate out data window Tom Tromey
2019-06-24 18:49   ` [PATCH 54/66] Separate out data item window Tom Tromey
2019-06-24 18:49   ` [PATCH 52/66] Remove command from tui_which_element Tom Tromey
2019-06-24 18:49   ` [PATCH 60/66] Use bool for is_exec_point Tom Tromey

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