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drop nocompiler generation

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This commit is contained in:
Victor Bombi
2020-04-14 11:05:52 +02:00
parent a99713a8ba
commit 7224084284
4 changed files with 32 additions and 162 deletions
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4
README.md
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@@ -30,9 +30,9 @@ Notes:
* this is only needed (before compilation) if you want an imgui version different from the one provided, otherwise generation is already done. * this is only needed (before compilation) if you want an imgui version different from the one provided, otherwise generation is already done.
* you will need LuaJIT (https://github.com/LuaJIT/LuaJIT.git better 2.1 branch) or precompiled for linux/macOS/windows in https://luapower.com/luajit/download * you will need LuaJIT (https://github.com/LuaJIT/LuaJIT.git better 2.1 branch) or precompiled for linux/macOS/windows in https://luapower.com/luajit/download
* you can use also a C++ compiler for doing preprocessing: gcc (In windows MinGW-W64-builds for example), clang or cl (MSVC) or not use a compiler (experimental nocompiler option) at all. (this repo was done with gcc) * you need to use also a C++ compiler for doing preprocessing: gcc (In windows MinGW-W64-builds for example), clang or cl (MSVC). (this repo was done with gcc)
* update `imgui` folder to the version you desire. * update `imgui` folder to the version you desire.
* edit `generator/generator.bat` on windows, or `generator/generator.sh` on linux, to choose between gcc, clang, cl or nocompiler and to choose desired implementations and whether imgui_internal is generated or not. * edit `generator/generator.bat` on windows, or `generator/generator.sh` on linux, to choose between gcc, clang, or cl and to choose desired implementations and whether imgui_internal is generated or not.
* edit config_generator.lua for adding includes needed by your chosen implementations (vulkan needs that). * edit config_generator.lua for adding includes needed by your chosen implementations (vulkan needs that).
* Run generator.bat or generator.sh with gcc, clang or cl and LuaJIT on your PATH. * Run generator.bat or generator.sh with gcc, clang or cl and LuaJIT on your PATH.
* as a result some files are generated: `cimgui.cpp` and `cimgui.h` for compiling and some lua/json files with information about the binding: `definitions.json` with function info, `structs_and_enums.json` with struct and enum info, `impl_definitions.json` with functions from the implementations info. * as a result some files are generated: `cimgui.cpp` and `cimgui.h` for compiling and some lua/json files with information about the binding: `definitions.json` with function info, `structs_and_enums.json` with struct and enum info, `impl_definitions.json` with functions from the implementations info.

2
generator/generator.bat
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@@ -14,7 +14,7 @@ set PATH=%PATH%;C:\anima;C:\mingws\i686-7.2.0-release-posix-dwarf-rt_v5-rev1\min
:: set PATH=%PATH%;C:\luaGL;C:\i686-7.2.0-release-posix-dwarf-rt_v5-rev1\mingw32\bin; :: set PATH=%PATH%;C:\luaGL;C:\i686-7.2.0-release-posix-dwarf-rt_v5-rev1\mingw32\bin;
:: set PATH=%PATH%;C:\luaGL\sources\luajit-master\luajit-master\bin\mingw32;C:\mingw32\bin; :: set PATH=%PATH%;C:\luaGL\sources\luajit-master\luajit-master\bin\mingw32;C:\mingw32\bin;
::process files ::process files
:: arg[1] compiler name gcc, clang, cl or nocompiler :: arg[1] compiler name gcc, clang or cl
:: arg[2] imgui_internal functions generation: true or false :: arg[2] imgui_internal functions generation: true or false
:: arg[3..n] name of implementations to generate :: arg[3..n] name of implementations to generate
luajit ./generator.lua gcc true glfw opengl3 opengl2 sdl luajit ./generator.lua gcc true glfw opengl3 opengl2 sdl

186
generator/generator.lua
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@@ -16,26 +16,27 @@ elseif COMPILER == "cl" then
CTEST = COMPILER CTEST = COMPILER
else else
print("Working without compiler ") print("Working without compiler ")
error("cant work with "..COMPILER.." compiler")
end end
--test compiler present --test compiler present
local HAVE_COMPILER = false local HAVE_COMPILER = false
if CTEST then
local pipe,err = io.popen(CTEST,"r") local pipe,err = io.popen(CTEST,"r")
if pipe then if pipe then
local str = pipe:read"*a" local str = pipe:read"*a"
print(str) print(str)
pipe:close() pipe:close()
if str=="" then if str=="" then
HAVE_COMPILER = false
else
HAVE_COMPILER = true
end
else
HAVE_COMPILER = false HAVE_COMPILER = false
print(err) else
HAVE_COMPILER = true
end end
assert(HAVE_COMPILER,"gcc, clang or cl needed to run script") else
end --CTEST HAVE_COMPILER = false
print(err)
end
assert(HAVE_COMPILER,"gcc, clang or cl needed to run script")
print("HAVE_COMPILER",HAVE_COMPILER) print("HAVE_COMPILER",HAVE_COMPILER)
print("INTERNAL_GENERATION",INTERNAL_GENERATION) print("INTERNAL_GENERATION",INTERNAL_GENERATION)
@@ -74,95 +75,6 @@ local cimgui_header =
local gdefines = {} --for FLT_MAX and others local gdefines = {} --for FLT_MAX and others
-------------------------------------------------------------------------- --------------------------------------------------------------------------
--helper functions --helper functions
---------------------------minimal preprocessor without compiler for ImGui.h
local function filelines(file,locats)
local split_comment = require"cpp2ffi".split_comment
local iflevels = {}
--generated known prepros
local prepro = {
["#if"]={
[ "defined(__clang__) || defined(__GNUC__)" ]=false,
[ "defined(__clang__)" ]=false,
[ "defined(_MSC_VER) && !defined(__clang__)" ]=false,
[ "!defined(IMGUI_DISABLE_INCLUDE_IMCONFIG_H) || defined(IMGUI_INCLUDE_IMCONFIG_H)" ]=false,
[ "!defined(IMGUI_IMPL_OPENGL_LOADER_GL3W) \\" ]=false,
},
["#elif"]={
[ "defined(__GNUC__) && __GNUC__ >= 8" ]=false,
[ "(defined(__clang__) || defined(__GNUC__)) && (__cplusplus < 201100)" ]=false,
},
["#ifdef"]={
[ "IM_VEC4_CLASS_EXTRA" ]=false,
[ "IMGUI_USER_CONFIG" ]=false,
[ "IMGUI_INCLUDE_IMGUI_USER_H" ]=false,
[ "IMGUI_USE_BGRA_PACKED_COLOR" ]=false,
[ "IM_VEC2_CLASS_EXTRA" ]=false,
},
["#ifndef"]={
[ "IMGUI_API" ]=false,
[ "IMGUI_IMPL_API" ]=false,
[ "IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT" ]=true,
[ "IM_ASSERT" ]=false,
[ "ImTextureID" ]=true,
[ "ImDrawIdx" ]=true,
[ "IMGUI_DISABLE_OBSOLETE_FUNCTIONS" ]=false,
},
}
local function prepro_boolif(pre,cond)
local conds = prepro[pre]
assert(conds,pre.." has no conds-----------------------------")
local res = conds[cond]
--assert(type(res)~="nil",cond.." not found")
if type(res)=="nil" then
print(pre,cond,"not found in precompiler database, returning false.")
res = false
end
return res
end
local function location_it()
repeat
local line = file:read"*l"
if not line then return nil end
line,_ = split_comment(line)
--if line:sub(1,1) == "#" then
if line:match("^%s*#") then
local pre,cond = line:match("^%s*(#%S*)%s+(.*)%s*$")
if line:match("#if") then
iflevels[#iflevels +1 ] = prepro_boolif(pre,cond)
elseif line:match("#endif") then
iflevels[#iflevels] = nil
elseif line:match("#elif") then
if not iflevels[#iflevels] then
iflevels[#iflevels] = prepro_boolif(pre,cond)
else --was true
iflevels[#iflevels] = false
end
elseif line:match("#else") then
iflevels[#iflevels] = not iflevels[#iflevels]
else
if not (pre:match("#define") or pre:match"#include" or pre:match"#pragma") then
print("not expected preprocessor directive ",pre)
end
end
-- skip
elseif #iflevels == 0 or iflevels[#iflevels] then
-- drop IMGUI_APIX
line = line:gsub("IMGUI_IMPL_API","")
-- drop IMGUI_API
line = line:gsub("IMGUI_API","")
return line,locats[1]
end
until false
end
return location_it
end
--------------------------------functions for C generation --------------------------------functions for C generation
--load parser module --load parser module
local cpp2ffi = require"cpp2ffi" local cpp2ffi = require"cpp2ffi"
@@ -505,9 +417,8 @@ pipe:close()
cimgui_header = cimgui_header:gsub("XXX",imgui_version) cimgui_header = cimgui_header:gsub("XXX",imgui_version)
print("IMGUI_VERSION",imgui_version) print("IMGUI_VERSION",imgui_version)
--get some defines---------------------------- --get some defines----------------------------
if HAVE_COMPILER then gdefines = get_defines{"IMGUI_VERSION","FLT_MAX"}
gdefines = get_defines{"IMGUI_VERSION","FLT_MAX"}
end
--funtion for parsing imgui headers --funtion for parsing imgui headers
local function parseImGuiHeader(header,names) local function parseImGuiHeader(header,names)
@@ -521,21 +432,16 @@ local function parseImGuiHeader(header,names)
parser.manuals = cimgui_manuals parser.manuals = cimgui_manuals
parser.UDTs = {"ImVec2","ImVec4","ImColor","ImRect"} parser.UDTs = {"ImVec2","ImVec4","ImColor","ImRect"}
local pipe,err local pipe,err = io.popen(CPRE..header,"r")
if HAVE_COMPILER then
pipe,err = io.popen(CPRE..header,"r")
else
pipe,err = io.open(header,"r")
end
if not pipe then if not pipe then
error("could not execute gcc "..err) error("could not execute COMPILER "..err)
end end
local iterator = (HAVE_COMPILER and cpp2ffi.location) or filelines local iterator = cpp2ffi.location
local tableo = {}
--[[ --[[
local tableo = {}
local line local line
repeat repeat
line =pipe:read"*l" line =pipe:read"*l"
@@ -544,7 +450,7 @@ local function parseImGuiHeader(header,names)
cpp2ffi.save_data("cdefs1.lua",table.concat(tableo,"\n")) cpp2ffi.save_data("cdefs1.lua",table.concat(tableo,"\n"))
--]] --]]
for line,loca,loca2 in iterator(pipe,names,{},COMPILER) do for line,loca,loca2 in iterator(pipe,names,{},COMPILER) do
parser:insert(line) parser:insert(line, loca)
--table.insert(tableo,line) --table.insert(tableo,line)
--print(loca,loca2) --print(loca,loca2)
end end
@@ -565,38 +471,6 @@ else
end end
parser1:do_parse() parser1:do_parse()
---------- generate cimgui_internal.h
--[=[
local parser1i = parseImGuiHeader([[../imgui/imgui_internal.h]],{[[imgui_internal]],[[imstb_textedit]]})
parser1i:do_parse()
local outpre,outpost = parser1i:gen_structs_and_enums()
--avoid T
parser1i.templates.ImVector.T = nil
for k,v in pairs(parser1i.templates.ImVector) do
if parser1.templates.ImVector[k] then parser1i.templates.ImVector[k]=nil end
end
local outtab = {}
generate_templates(outtab,parser1i.templates)
--drop first
table.remove(outtab,1)
local cstructsstr = outpre..table.concat(outtab,"")..outpost..(extra or "")
local cfuncsstr = func_header_generate(parser1i)
save_data("./output/cimgui_internal.h",cimgui_header,"#ifdef CIMGUI_DEFINE_ENUMS_AND_STRUCTS\n",cstructsstr,"\n#endif\n")--,cfuncsstr)
copyfile("./output/cimgui_internal.h", "../cimgui_internal.h")
--]=]
---------- generate now structs_and_enums_i
--[=[
save_data([[../imgui/temp.h]],[[#include "imgui.h"
#include "imgui_internal.h"]])
local parser1i = parseImGuiHeader([[../imgui/temp.h]],{[[imgui]],[[imgui_internal]],[[imstb_textedit]]})
os.remove([[../imgui/temp.h]])
parser1i:do_parse()
local structs_and_enums_table_i = parser1i:gen_structs_and_enums_table()
save_data("./output/structs_and_enums_i.lua",serializeTableF(structs_and_enums_table_i))
--]=]
----------------------
save_data("./output/overloads.txt",parser1.overloadstxt) save_data("./output/overloads.txt",parser1.overloadstxt)
cimgui_generation(parser1) cimgui_generation(parser1)
@@ -634,7 +508,7 @@ save_data("./output/typedefs_dict.lua",serializeTableF(parser1.typedefs_dict))
local parser2 local parser2
if #implementations > 0 then if #implementations > 0 then
print("------------------implementations generation with "..COMPILER.."------------------------")
parser2 = cpp2ffi.Parser() parser2 = cpp2ffi.Parser()
local config = require"config_generator" local config = require"config_generator"
@@ -642,7 +516,6 @@ if #implementations > 0 then
for i,impl in ipairs(implementations) do for i,impl in ipairs(implementations) do
local source = [[../imgui/examples/imgui_impl_]].. impl .. ".h " local source = [[../imgui/examples/imgui_impl_]].. impl .. ".h "
local locati = [[imgui_impl_]].. impl local locati = [[imgui_impl_]].. impl
local pipe,err
local define_cmd = COMPILER=="cl" and [[ /E /D]] or [[ -E -D]] local define_cmd = COMPILER=="cl" and [[ /E /D]] or [[ -E -D]]
local extra_defines = "" local extra_defines = ""
@@ -655,20 +528,17 @@ if #implementations > 0 then
end end
end end
if HAVE_COMPILER then local pipe,err = io.popen(CPRE..extra_defines..extra_includes..source,"r")
pipe,err = io.popen(CPRE..extra_defines..extra_includes..source,"r")
else
pipe,err = io.open(source,"r")
end
if not pipe then if not pipe then
error("could not get file: "..err) error("could not get file: "..err)
end end
local iterator = (HAVE_COMPILER and cpp2ffi.location) or filelines local iterator = cpp2ffi.location
for line,locat in iterator(pipe,{locati},{},COMPILER) do for line,locat in iterator(pipe,{locati},{},COMPILER) do
--local line, comment = split_comment(line) --local line, comment = split_comment(line)
parser2:insert(line) parser2:insert(line,locat)
end end
pipe:close() pipe:close()
end end

2
generator/generator.sh
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@@ -12,7 +12,7 @@
# impl_definitions.lua for implementation function definitions # impl_definitions.lua for implementation function definitions
#process files #process files
# arg[1] compiler name gcc, clang, cl or nocompiler # arg[1] compiler name gcc, clang, or cl
# arg[2] imgui_internal functions generation: true or false # arg[2] imgui_internal functions generation: true or false
# arg[3..n] name of implementations to generate # arg[3..n] name of implementations to generate
luajit ./generator.lua gcc true glfw opengl3 opengl2 sdl luajit ./generator.lua gcc true glfw opengl3 opengl2 sdl