Mercurial > vim
view src/gui.h @ 32936:c517845bd10e v9.0.1776
patch 9.0.1776: No support for stable Python 3 ABI
Commit: https://github.com/vim/vim/commit/c13b3d1350b60b94fe87f0761ea31c0e7fb6ebf3
Author: Yee Cheng Chin <ychin.git@gmail.com>
Date: Sun Aug 20 21:18:38 2023 +0200
patch 9.0.1776: No support for stable Python 3 ABI
Problem: No support for stable Python 3 ABI
Solution: Support Python 3 stable ABI
Commits:
1) Support Python 3 stable ABI to allow mixed version interoperatbility
Vim currently supports embedding Python for use with plugins, and the
"dynamic" linking option allows the user to specify a locally installed
version of Python by setting `pythonthreedll`. However, one caveat is
that the Python 3 libs are not binary compatible across minor versions,
and mixing versions can potentially be dangerous (e.g. let's say Vim was
linked against the Python 3.10 SDK, but the user sets `pythonthreedll`
to a 3.11 lib). Usually, nothing bad happens, but in theory this could
lead to crashes, memory corruption, and other unpredictable behaviors.
It's also difficult for the user to tell something is wrong because Vim
has no way of reporting what Python 3 version Vim was linked with.
For Vim installed via a package manager, this usually isn't an issue
because all the dependencies would already be figured out. For prebuilt
Vim binaries like MacVim (my motivation for working on this), AppImage,
and Win32 installer this could potentially be an issue as usually a
single binary is distributed. This is more tricky when a new Python
version is released, as there's a chicken-and-egg issue with deciding
what Python version to build against and hard to keep in sync when a new
Python version just drops and we have a mix of users of different Python
versions, and a user just blindly upgrading to a new Python could lead to
bad interactions with Vim.
Python 3 does have a solution for this problem: stable ABI / limited API
(see https://docs.python.org/3/c-api/stable.html). The C SDK limits the
API to a set of functions that are promised to be stable across
versions. This pull request adds an ifdef config that allows us to turn
it on when building Vim. Vim binaries built with this option should be
safe to freely link with any Python 3 libraies without having the
constraint of having to use the same minor version.
Note: Python 2 has no such concept and this doesn't change how Python 2
integration works (not that there is going to be a new version of Python
2 that would cause compatibility issues in the future anyway).
---
Technical details:
======
The stable ABI can be accessed when we compile with the Python 3 limited
API (by defining `Py_LIMITED_API`). The Python 3 code (in `if_python3.c`
and `if_py_both.h`) would now handle this and switch to limited API
mode. Without it set, Vim will still use the full API as before so this
is an opt-in change.
The main difference is that `PyType_Object` is now an opaque struct that
we can't directly create "static types" out of, and we have to create
type objects as "heap types" instead. This is because the struct is not
stable and changes from version to version (e.g. 3.8 added a
`tp_vectorcall` field to it). I had to change all the types to be
allocated on the heap instead with just a pointer to them.
Other functions are also simply missing in limited API, or they are
introduced too late (e.g. `PyUnicode_AsUTF8AndSize` in 3.10) to it that
we need some other ways to do the same thing, so I had to abstract a few
things into macros, and sometimes re-implement functions like
`PyObject_NEW`.
One caveat is that in limited API, `OutputType` (used for replacing
`sys.stdout`) no longer inherits from `PyStdPrinter_Type` which I don't
think has any real issue other than minor differences in how they
convert to a string and missing a couple functions like `mode()` and
`fileno()`.
Also fixed an existing bug where `tp_basicsize` was set incorrectly for
`BufferObject`, `TabListObject, `WinListObject`.
Technically, there could be a small performance drop, there is a little
more indirection with accessing type objects, and some APIs like
`PyUnicode_AsUTF8AndSize` are missing, but in practice I didn't see any
difference, and any well-written Python plugin should try to avoid
excessing callbacks to the `vim` module in Python anyway.
I only tested limited API mode down to Python 3.7, which seemes to
compile and work fine. I haven't tried earlier Python versions.
2) Fix PyIter_Check on older Python vers / type##Ptr unused warning
For PyIter_Check, older versions exposed them as either macros (used in
full API), or a function (for use in limited API). A previous change
exposed PyIter_Check to the dynamic build because Python just moved it
to function-only in 3.10 anyway. Because of that, just make sure we
always grab the function in dynamic builds in earlier versions since
that's what Python eventually did anyway.
3) Move Py_LIMITED_API define to configure script
Can now use --with-python-stable-abi flag to customize what stable ABI
version to target. Can also use an env var to do so as well.
4) Show +python/dyn-stable in :version, and allow has() feature query
Not sure if the "/dyn-stable" suffix would break things, or whether we
should do it another way. Or just don't show it in version and rely on
has() feature checking.
5) Documentation first draft. Still need to implement v:python3_version
6) Fix PyIter_Check build breaks when compiling against Python 3.8
7) Add CI coverage stable ABI on Linux/Windows / make configurable on Windows
This adds configurable options for Windows make files (both MinGW and
MSVC). CI will also now exercise both traditional full API and stable
ABI for Linux and Windows in the matrix for coverage.
Also added a "dynamic" option to Linux matrix as a drive-by change to
make other scripting languages like Ruby / Perl testable under both
static and dynamic builds.
8) Fix inaccuracy in Windows docs
Python's own docs are confusing but you don't actually want to use
`python3.dll` for the dynamic linkage.
9) Add generated autoconf file
10) Add v:python3_version support
This variable indicates the version of Python3 that Vim was built
against (PY_VERSION_HEX), and will be useful to check whether the Python
library you are loading in dynamically actually fits it. When built with
stable ABI, it will be the limited ABI version instead
(`Py_LIMITED_API`), which indicates the minimum version of Python 3 the
user should have, rather than the exact match. When stable ABI is used,
we won't be exposing PY_VERSION_HEX in this var because it just doesn't
seem necessary to do so (the whole point of stable ABI is the promise
that it will work across versions), and I don't want to confuse the user
with too many variables.
Also, cleaned up some documentation, and added help tags.
11) Fix Python 3.7 compat issues
Fix a couple issues when using limited API < 3.8
- Crash on exit: In Python 3.7, if a heap-allocated type is destroyed
before all instances are, it would cause a crash later. This happens
when we destroyed `OptionsType` before calling `Py_Finalize` when
using the limited API. To make it worse, later versions changed the
semantics and now each instance has a strong reference to its own type
and the recommendation has changed to have each instance de-ref its
own type and have its type in GC traversal. To avoid dealing with
these cross-version variations, we just don't free the heap type. They
are static types in non-limited-API anyway and are designed to last
through the entirety of the app, and we also don't restart the Python
runtime and therefore do not need it to have absolutely 0 leaks.
See:
- https://docs.python.org/3/whatsnew/3.8.html#changes-in-the-c-api
- https://docs.python.org/3/whatsnew/3.9.html#changes-in-the-c-api
- PyIter_Check: This function is not provided in limited APIs older than
3.8. Previously I was trying to mock it out using manual
PyType_GetSlot() but it was brittle and also does not actually work
properly for static types (it will generate a Python error). Just
return false. It does mean using limited API < 3.8 is not recommended
as you lose the functionality to handle iterators, but from playing
with plugins I couldn't find it to be an issue.
- Fix loading of PyIter_Check so it will be done when limited API < 3.8.
Otherwise loading a 3.7 Python lib will fail even if limited API was
specified to use it.
12) Make sure to only load `PyUnicode_AsUTF8AndSize` in needed in limited API
We don't use this function unless limited API >= 3.10, but we were
loading it regardless. Usually it's ok in Unix-like systems where Python
just has a single lib that we load from, but in Windows where there is a
separate python3.dll this would not work as the symbol would not have
been exposed in this more limited DLL file. This makes it much clearer
under what condition is this function needed.
closes: #12032
Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sun, 20 Aug 2023 21:30:04 +0200 |
parents | be5b8d4616b2 |
children | 9b35b4c6df4c |
line wrap: on
line source
/* vi:set ts=8 sts=4 sw=4 noet: * * VIM - Vi IMproved by Bram Moolenaar * Motif support by Robert Webb * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. */ #ifdef FEAT_GUI_MOTIF # include <Xm/Xm.h> #endif #ifdef FEAT_GUI_GTK # ifdef VMS // undef MIN and MAX because Intrinsic.h redefines them anyway # ifdef MAX # undef MAX # endif # ifdef MIN # undef MIN # endif # include "gui_gtk_vms.h" # endif // VMS # include <X11/Intrinsic.h> # include <gtk/gtk.h> #endif #ifdef FEAT_GUI_HAIKU # include "gui_haiku.h" #endif // Needed when generating prototypes, since FEAT_GUI is always defined then. #if defined(FEAT_XCLIPBOARD) && !defined(FEAT_GUI_MOTIF) \ && !defined(FEAT_GUI_GTK) # include <X11/Intrinsic.h> #endif #ifdef FEAT_GUI_PHOTON # include <Ph.h> # include <Pt.h> # include "photon/PxProto.h" #endif /* * On some systems scrolling needs to be done right away instead of in the * main loop. */ #if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_GTK) # define USE_ON_FLY_SCROLL #endif /* * GUIs that support dropping files on a running Vim. */ #if (defined(FEAT_DND) && defined(FEAT_GUI_GTK)) \ || defined(FEAT_GUI_MSWIN) \ || defined(FEAT_GUI_HAIKU) # define HAVE_DROP_FILE #endif /* * This define makes menus always use a fontset. * We're not sure if this code always works, thus it can be disabled. */ #ifdef FEAT_XFONTSET # define FONTSET_ALWAYS #endif /* * These macros convert between character row/column and pixel coordinates. * TEXT_X - Convert character column into X pixel coord for drawing strings. * TEXT_Y - Convert character row into Y pixel coord for drawing strings. * FILL_X - Convert character column into X pixel coord for filling the area * under the character. * FILL_Y - Convert character row into Y pixel coord for filling the area * under the character. * X_2_COL - Convert X pixel coord into character column. * Y_2_ROW - Convert Y pixel coord into character row. */ #ifdef FEAT_GUI_MSWIN # define TEXT_X(col) ((col) * gui.char_width) # define TEXT_Y(row) ((row) * gui.char_height + gui.char_ascent) # define FILL_X(col) ((col) * gui.char_width) # define FILL_Y(row) ((row) * gui.char_height) # define X_2_COL(x) ((x) / gui.char_width) # define Y_2_ROW(y) ((y) / gui.char_height) #else # define TEXT_X(col) ((col) * gui.char_width + gui.border_offset) # define FILL_X(col) ((col) * gui.char_width + gui.border_offset) # define X_2_COL(x) (((x) - gui.border_offset) / gui.char_width) # define TEXT_Y(row) ((row) * gui.char_height + gui.char_ascent \ + gui.border_offset) # define FILL_Y(row) ((row) * gui.char_height + gui.border_offset) # define Y_2_ROW(y) (((y) - gui.border_offset) / gui.char_height) #endif // Indices for arrays of scrollbars #define SBAR_NONE (-1) #define SBAR_LEFT 0 #define SBAR_RIGHT 1 #define SBAR_BOTTOM 2 // Orientations for scrollbars #define SBAR_VERT 0 #define SBAR_HORIZ 1 // Default size of scrollbar #define SB_DEFAULT_WIDTH 16 // Default height of the menu bar #define MENU_DEFAULT_HEIGHT 1 // figure it out at runtime // Flags for gui_mch_outstr_nowrap() #define GUI_MON_WRAP_CURSOR 0x01 // wrap cursor at end of line #define GUI_MON_INVERT 0x02 // invert the characters #define GUI_MON_IS_CURSOR 0x04 // drawing cursor #define GUI_MON_TRS_CURSOR 0x08 // drawing transparent cursor #define GUI_MON_NOCLEAR 0x10 // don't clear selection // Flags for gui_mch_draw_string() #define DRAW_TRANSP 0x01 // draw with transparent bg #define DRAW_BOLD 0x02 // draw bold text #define DRAW_UNDERL 0x04 // draw underline text #define DRAW_UNDERC 0x08 // draw undercurl text #if defined(FEAT_GUI_GTK) # define DRAW_ITALIC 0x10 // draw italic text #endif #define DRAW_CURSOR 0x20 // drawing block cursor (win32) #define DRAW_STRIKE 0x40 // strikethrough // For our own tearoff menu item #define TEAR_STRING "-->Detach" #define TEAR_LEN (9) // length of above string // for the toolbar #define TOOLBAR_BUTTON_HEIGHT 18 #define TOOLBAR_BUTTON_WIDTH 18 #define TOOLBAR_BORDER_HEIGHT 12 // room above+below buttons for MSWindows #ifdef FEAT_GUI_MSWIN # define TABLINE_HEIGHT 22 #endif #ifdef FEAT_GUI_MOTIF # define TABLINE_HEIGHT 30 #endif #if defined(NO_CONSOLE) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_X11) # define NO_CONSOLE_INPUT // use no_console_input() to check if there // is no console input possible #endif typedef struct GuiScrollbar { long ident; // Unique identifier for each scrollbar win_T *wp; // Scrollbar's window, NULL for bottom int type; // one of SBAR_{LEFT,RIGHT,BOTTOM} long value; // Represents top line number visible long size; // Size of scrollbar thumb long max; // Number of lines in buffer // Values measured in characters: int top; // Top of scroll bar (chars from row 0) int height; // Current height of scroll bar in rows int width; // Current width of scroll bar in cols int status_height; // Height of status line #ifdef FEAT_GUI_X11 Widget id; // Id of real scroll bar #endif #ifdef FEAT_GUI_GTK GtkWidget *id; // Id of real scroll bar unsigned long handler_id; // Id of "value_changed" signal handler #endif #ifdef FEAT_GUI_MSWIN HWND id; // Id of real scroll bar int scroll_shift; // The scrollbar stuff can handle only up to // 32767 lines. When the file is longer, // scroll_shift is set to the number of shifts // to reduce the count. #endif #if FEAT_GUI_HAIKU VimScrollBar *id; // Pointer to real scroll bar #endif #ifdef FEAT_GUI_PHOTON PtWidget_t *id; #endif } scrollbar_T; typedef long guicolor_T; // handle for a GUI color; for X11 this should // be "Pixel", but that's an unsigned and we // need a signed value #define INVALCOLOR ((guicolor_T)-11111) // number for invalid color; on 32 bit // displays there is a tiny chance this is an // actual color #define CTERMCOLOR ((guicolor_T)-11110) // only used for cterm.bg_rgb and // cterm.fg_rgb: use cterm color #ifdef FEAT_GUI_GTK typedef PangoFontDescription *GuiFont; // handle for a GUI font typedef PangoFontDescription *GuiFontset; // handle for a GUI fontset # define NOFONT (GuiFont)NULL # define NOFONTSET (GuiFontset)NULL #else # ifdef FEAT_GUI_PHOTON typedef char *GuiFont; typedef char *GuiFontset; # define NOFONT (GuiFont)NULL # define NOFONTSET (GuiFontset)NULL # else # ifdef FEAT_GUI_X11 typedef XFontStruct *GuiFont; // handle for a GUI font typedef XFontSet GuiFontset; // handle for a GUI fontset # define NOFONT (GuiFont)0 # define NOFONTSET (GuiFontset)0 # else typedef long_u GuiFont; // handle for a GUI font typedef long_u GuiFontset; // handle for a GUI fontset # define NOFONT (GuiFont)0 # define NOFONTSET (GuiFontset)0 # endif # endif #endif #ifdef VIMDLL // Use spawn when GUI is starting. # define GUI_MAY_SPAWN // Uncomment the next definition if you want to use the `:gui` command on // Windows. It uses `:mksession` to inherit the session from vim.exe to // gvim.exe. So, it doesn't work perfectly. (EXPERIMENTAL) //# define EXPERIMENTAL_GUI_CMD #endif typedef struct Gui { int in_focus; // Vim has input focus int in_use; // Is the GUI being used? int starting; // GUI will start in a little while int shell_created; // Has the shell been created yet? int dying; // Is vim dying? Then output to terminal int dofork; // Use fork() when GUI is starting #ifdef GUI_MAY_SPAWN int dospawn; // Use spawn() when GUI is starting #endif int dragged_sb; // Which scrollbar being dragged, if any? win_T *dragged_wp; // Which WIN's sb being dragged, if any? int pointer_hidden; // Is the mouse pointer hidden? int col; // Current cursor column in GUI display int row; // Current cursor row in GUI display int cursor_col; // Physical cursor column in GUI display int cursor_row; // Physical cursor row in GUI display char cursor_is_valid; // There is a cursor at cursor_row/col int num_cols; // Number of columns int num_rows; // Number of rows int scroll_region_top; // Top (first) line of scroll region int scroll_region_bot; // Bottom (last) line of scroll region int scroll_region_left; // Left (first) column of scroll region int scroll_region_right; // Right (last) col. of scroll region int highlight_mask; // Highlight attribute mask int scrollbar_width; // Width of vertical scrollbars int scrollbar_height; // Height of horizontal scrollbar int left_sbar_x; // Calculated x coord for left scrollbar int right_sbar_x; // Calculated x coord for right scrollbar #ifdef FEAT_MENU # ifndef FEAT_GUI_GTK int menu_height; // Height of the menu bar int menu_width; // Width of the menu bar # endif char menu_is_active; // TRUE if menu is present #endif scrollbar_T bottom_sbar; // Bottom scrollbar int which_scrollbars[3];// Which scrollbar boxes are active? int prev_wrap; // For updating the horizontal scrollbar int char_width; // Width of char cell in pixels int char_height; // Height of char cell in pixels, includes // 'linespace' int char_ascent; // Ascent of char in pixels int border_width; // Width of our border around text area int border_offset; // Total pixel offset for all borders GuiFont norm_font; // Normal font #ifndef FEAT_GUI_GTK GuiFont bold_font; // Bold font GuiFont ital_font; // Italic font GuiFont boldital_font; // Bold-Italic font #else int font_can_bold; // Whether norm_font supports bold weight. // The styled font variants are not used. #endif #if defined(FEAT_MENU) && !defined(FEAT_GUI_GTK) # ifdef FONTSET_ALWAYS GuiFontset menu_fontset; // set of fonts for multi-byte chars # else GuiFont menu_font; // menu item font # endif #endif GuiFont wide_font; // Normal 'guifontwide' font #ifndef FEAT_GUI_GTK GuiFont wide_bold_font; // Bold 'guifontwide' font GuiFont wide_ital_font; // Italic 'guifontwide' font GuiFont wide_boldital_font; // Bold-Italic 'guifontwide' font #endif #ifdef FEAT_XFONTSET GuiFontset fontset; // set of fonts for multi-byte chars #endif guicolor_T back_pixel; // Color of background guicolor_T norm_pixel; // Color of normal text guicolor_T def_back_pixel; // default Color of background guicolor_T def_norm_pixel; // default Color of normal text #ifdef FEAT_GUI_X11 char *rsrc_menu_fg_name; // Color of menu & dialog foreground guicolor_T menu_fg_pixel; // Same in Pixel format char *rsrc_menu_bg_name; // Color of menu & dialog background guicolor_T menu_bg_pixel; // Same in Pixel format char *rsrc_scroll_fg_name; // Color of scrollbar foreground guicolor_T scroll_fg_pixel; // Same in Pixel format char *rsrc_scroll_bg_name; // Color of scrollbar background guicolor_T scroll_bg_pixel; // Same in Pixel format Display *dpy; // X display Window wid; // Window id of text area int visibility; // Is shell partially/fully obscured? GC text_gc; GC back_gc; GC invert_gc; Cursor blank_pointer; // Blank pointer // X Resources char_u *rsrc_font_name; // Resource font name, used if 'guifont' // not set char_u *rsrc_bold_font_name; // Resource bold font name char_u *rsrc_ital_font_name; // Resource italic font name char_u *rsrc_boldital_font_name; // Resource bold-italic font name char_u *rsrc_menu_font_name; // Resource menu Font name Bool rsrc_rev_video; // Use reverse video? char_u *geom; // Geometry, eg "80x24" Bool color_approx; // Some color was approximated #endif #ifdef FEAT_GUI_GTK # ifndef USE_GTK3 int visibility; // Is shell partially/fully obscured? # endif GdkCursor *blank_pointer; // Blank pointer // X Resources char_u *geom; // Geometry, eg "80x24" GtkWidget *mainwin; // top level GTK window GtkWidget *formwin; // manages all the windows below GtkWidget *drawarea; // the "text" area # ifdef FEAT_MENU GtkWidget *menubar; // menubar # endif # ifdef FEAT_TOOLBAR GtkWidget *toolbar; // toolbar # endif # ifdef FEAT_GUI_GNOME GtkWidget *menubar_h; // menubar handle GtkWidget *toolbar_h; // toolbar handle # endif # ifdef USE_GTK3 GdkRGBA *fgcolor; // GDK-styled foreground color GdkRGBA *bgcolor; // GDK-styled background color GdkRGBA *spcolor; // GDK-styled special color # else GdkColor *fgcolor; // GDK-styled foreground color GdkColor *bgcolor; // GDK-styled background color GdkColor *spcolor; // GDK-styled special color # endif # ifdef USE_GTK3 cairo_surface_t *surface; // drawarea surface # else GdkGC *text_gc; // cached GC for normal text # endif PangoContext *text_context; // the context used for all text PangoFont *ascii_font; // cached font for ASCII strings PangoGlyphString *ascii_glyphs; // cached code point -> glyph map # ifdef FEAT_GUI_TABLINE GtkWidget *tabline; // tab pages line handle # endif GtkAccelGroup *accel_group; GtkWidget *filedlg; // file selection dialog char_u *browse_fname; // file name from filedlg guint32 event_time; char_u ligatures_map[256]; // ascii map for characters 0-255, value is // 1 if in 'guiligatures' #endif // FEAT_GUI_GTK #if defined(FEAT_GUI_TABLINE) \ && (defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_MOTIF) \ || defined(FEAT_GUI_HAIKU)) int tabline_height; #endif #if defined(FEAT_TOOLBAR) \ && (defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_HAIKU) || defined(FEAT_GUI_MSWIN)) int toolbar_height; // height of the toolbar #endif #ifdef FEAT_BEVAL_TIP // Tooltip properties; also used for balloon evaluation char_u *rsrc_tooltip_font_name; // tooltip font name char *rsrc_tooltip_fg_name; // tooltip foreground color name char *rsrc_tooltip_bg_name; // tooltip background color name guicolor_T tooltip_fg_pixel; // tooltip foreground color guicolor_T tooltip_bg_pixel; // tooltip background color XFontSet tooltip_fontset; // tooltip fontset #endif #ifdef FEAT_GUI_MSWIN GuiFont currFont; // Current font guicolor_T currFgColor; // Current foreground text color guicolor_T currBgColor; // Current background text color guicolor_T currSpColor; // Current special text color #endif #ifdef FEAT_GUI_HAIKU VimApp *vimApp; VimWindow *vimWindow; VimFormView *vimForm; VimTextAreaView *vimTextArea; int vdcmp; // Vim Direct Communication Message Port #endif #ifdef FEAT_GUI_PHOTON PtWidget_t *vimWindow; // PtWindow PtWidget_t *vimTextArea; // PtRaw PtWidget_t *vimContainer; // PtPanel # if defined(FEAT_MENU) || defined(FEAT_TOOLBAR) PtWidget_t *vimToolBarGroup; # endif # ifdef FEAT_MENU PtWidget_t *vimMenuBar; # endif # ifdef FEAT_TOOLBAR PtWidget_t *vimToolBar; int toolbar_height; # endif PhEvent_t *event_buffer; #endif #ifdef FEAT_XIM char *rsrc_input_method; char *rsrc_preedit_type_name; #endif } gui_T; extern gui_T gui; // this is defined in gui.c // definitions of available window positionings for gui_*_position_in_parent() typedef enum { VW_POS_MOUSE, VW_POS_CENTER, VW_POS_TOP_CENTER } gui_win_pos_T; #ifdef FIND_REPLACE_DIALOG /* * Flags used to distinguish the different contexts in which the * find/replace callback may be called. */ # define FRD_FINDNEXT 1 // Find next in find dialog # define FRD_R_FINDNEXT 2 // Find next in repl dialog # define FRD_REPLACE 3 // Replace once # define FRD_REPLACEALL 4 // Replace remaining matches # define FRD_UNDO 5 // Undo replaced text # define FRD_TYPE_MASK 7 // Mask for the callback type // Flags which change the way searching is done. # define FRD_WHOLE_WORD 0x08 // match whole word only # define FRD_MATCH_CASE 0x10 // match case #endif #ifdef FEAT_GUI_GTK /* * Convenience macros to convert from 'encoding' to 'termencoding' and * vice versa. If no conversion is necessary the passed-in pointer is * returned as is, without allocating any memory. Thus additional _FREE() * macros are provided. The _FREE() macros also set the pointer to NULL, * in order to avoid bugs due to illegal memory access only happening if * 'encoding' != utf-8... * * Defining these macros as pure expressions looks a bit tricky but * avoids depending on the context of the macro expansion. One of the * rare occasions where the comma operator comes in handy :) * * Note: Do NOT keep the result around when handling control back to * the main Vim! The user could change 'encoding' at any time. */ # define CONVERT_TO_UTF8(String) \ ((output_conv.vc_type == CONV_NONE || (String) == NULL) \ ? (String) \ : string_convert(&output_conv, (String), NULL)) # define CONVERT_TO_UTF8_FREE(String) \ ((String) = ((output_conv.vc_type == CONV_NONE) \ ? (char_u *)NULL \ : (vim_free(String), (char_u *)NULL))) # define CONVERT_FROM_UTF8(String) \ ((input_conv.vc_type == CONV_NONE || (String) == NULL) \ ? (String) \ : string_convert(&input_conv, (String), NULL)) # define CONVERT_FROM_UTF8_FREE(String) \ ((String) = ((input_conv.vc_type == CONV_NONE) \ ? (char_u *)NULL \ : (vim_free(String), (char_u *)NULL))) #else # define CONVERT_TO_UTF8(String) (String) # define CONVERT_TO_UTF8_FREE(String) ((String) = (char_u *)NULL) # define CONVERT_FROM_UTF8(String) (String) # define CONVERT_FROM_UTF8_FREE(String) ((String) = (char_u *)NULL) #endif // FEAT_GUI_GTK #ifdef FEAT_GUI_GTK /* * The second parameter of g_signal_handlers_disconnect_by_func() is supposed * to be a function pointer which was passed to g_signal_connect_*() somewhere * previously, and hence it must be of type GCallback, i.e., void (*)(void). * * Meanwhile, g_signal_handlers_disconnect_by_func() is a macro calling * g_signal_handlers_disconnect_matched(), and the second parameter of the * former is to be passed to the sixth parameter of the latter the type of * which, however, is declared as void * in the function signature. * * While the ISO C Standard does not require that function pointers be * interconvertible to void *, widely-used compilers such as gcc and clang * do such conversion implicitly and automatically on some platforms without * issuing any warning. * * For Solaris Studio, that is not the case. An explicit type cast is needed * to suppress warnings on that particular conversion. */ # if defined(__SUNPRO_C) && defined(USE_GTK3) # define FUNC2GENERIC(func) (void *)(func) # else # define FUNC2GENERIC(func) G_CALLBACK(func) # endif #endif // FEAT_GUI_GTK #if defined(UNIX) # define GUI_MAY_FORK #endif