refactor msvc module infrastructure

1 files changed, 0 insertions, 821 deletions

diff --git a/xmake/rules/c++/modules/modules_support/msvc.lua b/xmake/rules/c++/modules/modules_support/msvc.lua
deleted file mode 100644
index e90ae3df3..000000000
--- a/xmake/rules/c++/modules/modules_support/msvc.lua
+++ /dev/null
@@ -1,821 +0,0 @@
---!A cross-platform build utility based on Lua
---
--- Licensed under the Apache License, Version 2.0 (the "License");
--- you may not use this file except in compliance with the License.
--- You may obtain a copy of the License at
---
---     http://www.apache.org/licenses/LICENSE-2.0
---
--- Unless required by applicable law or agreed to in writing, software
--- distributed under the License is distributed on an "AS IS" BASIS,
--- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
--- See the License for the specific language governing permissions and
--- limitations under the License.
---
--- Copyright (C) 2015-present, TBOOX Open Source Group.
---
--- @author      ruki, Arthapz
--- @file        msvc.lua
---
-
--- imports
-import("core.base.option")
-import("core.base.json")
-import("core.tool.compiler")
-import("core.project.project")
-import("core.project.depend")
-import("core.project.config")
-import("core.base.semver")
-import("utils.progress")
-import("private.action.build.object", {alias = "objectbuilder"})
-import("common")
-
--- add a module or header unit into the mapper
---
--- e.g
--- /reference Foo=build/.gens/Foo/rules/modules/cache/Foo.ifc
--- /headerUnit:angle glm/mat4x4.hpp=Users\arthu\AppData\Local\.xmake\packages\g\glm\0.9.9+8\91454f3ee0be416cb9c7452970a2300f\include\glm\mat4x4.hpp.ifc
---
-function _add_module_to_mapper(target, argument, namekey, path, objectfile, bmifile, deps)
-    local modulemap = _get_modulemap_from_mapper(target)
-    if modulemap[namekey] then
-        return
-    end
-    local mapflag = {argument, path .. "=" .. bmifile}
-    modulemap[namekey] = {flag = mapflag, objectfile = objectfile, deps = deps}
-    common.localcache():set2(_mapper_cachekey(target), "modulemap", modulemap)
-end
-
-function _mapper_cachekey(target)
-    local mode = config.mode()
-    return target:name() .. "_modulemap_" .. (mode or "")
-end
-
--- flush mapper file cache
-function _flush_mapper(target)
-    -- not using set2/get2 to flush only current target mapper
-    common.localcache():save(_mapper_cachekey(target))
-end
-
--- get modulemap from mapper
-function _get_modulemap_from_mapper(target)
-    return common.localcache():get2(_mapper_cachekey(target), "modulemap") or {}
-end
-
--- do compile
-function _compile(target, flags, sourcefile)
-    local compinst = target:compiler("cxx")
-    local msvc = target:toolchain("msvc")
-    local compflags = compinst:compflags({sourcefile = sourcefile, target = target})
-    os.vrunv(compinst:program(), winos.cmdargv(table.join(compflags or {}, flags)), {envs = msvc:runenvs()})
-end
-
--- do compile for batchcmds
--- @note we need to use batchcmds:compilev to translate paths in compflags for generator, e.g. -Ixx
-function _batchcmds_compile(batchcmds, target, flags, sourcefile)
-    local compinst = target:compiler("cxx")
-    local compflags = compinst:compflags({sourcefile = sourcefile, target = target})
-    batchcmds:compilev(table.join(compflags or {}, flags), {compiler = compinst, sourcekind = "cxx"})
-end
-
--- add an objectfile to the linker flags
---
--- e.g
--- foo.obj
---
-function _add_objectfile_to_link_arguments(target, objectfile)
-    local cachekey = target:name() .. "dependency_objectfiles"
-    local cache = common.localcache():get(cachekey) or {}
-    if table.contains(cache, objectfile) then
-        return
-    end
-    table.insert(cache, objectfile)
-    common.localcache():set(cachekey, cache)
-    common.localcache():save(cachekey)
-end
-
--- build module file
-function _build_modulefile(target, sourcefile, opt)
-    local objectfile = opt.objectfile
-    local dependfile = opt.dependfile
-    local compinst = compiler.load("cxx", {target = target})
-    local compflags = compinst:compflags({sourcefile = sourcefile, target = target})
-    local dependinfo = target:is_rebuilt() and {} or (depend.load(dependfile) or {})
-
-    -- need build this object?
-    local dryrun = option.get("dry-run")
-    local depvalues = {compinst:program(), compflags}
-    local lastmtime = os.isfile(objectfile) and os.mtime(dependfile) or 0
-    if not dryrun and not depend.is_changed(dependinfo, {lastmtime = lastmtime, values = depvalues}) then
-        return
-    end
-
-    -- init flags
-    local flags = table.join("-TP", compflags, opt.flags or {})
-
-    -- trace
-    progress.show(opt.progress, "${color.build.object}compiling.module.$(mode) %s", opt.name)
-    vprint(compinst:compcmd(sourcefile, objectfile, {compflags = flags, rawargs = true}))
-
-    if not dryrun then
-
-        -- do compile
-        dependinfo.files = {}
-        assert(compinst:compile(sourcefile, objectfile, {dependinfo = dependinfo, compflags = flags}))
-
-        -- update files and values to the dependent file
-        dependinfo.values = depvalues
-        table.join2(dependinfo.files, sourcefile)
-        depend.save(dependinfo, dependfile)
-    end
-end
-
--- load module support for the current target
-function load(target)
-
-    -- add modules flags if visual studio version is < 16.11 (vc 14.29)
-    local modulesflag = get_modulesflag(target)
-    local msvc = target:toolchain("msvc")
-    local vcvars = msvc:config("vcvars")
-    if vcvars.VCInstallDir and vcvars.VCToolsVersion and semver.compare(vcvars.VCToolsVersion, "14.29") < 0 then
-        target:add("cxxflags", modulesflag)
-    end
-
-    -- enable std modules if c++23 by defaults
-    if target:data("c++.msvc.enable_std_import") == nil then
-        local languages = target:get("languages")
-        local isatleastcpp23 = false
-        for _, language in ipairs(languages) do
-            if language:startswith("c++") or language:startswith("cxx") then
-                isatleastcpp23 = true
-                local version = tonumber(language:match("%d+"))
-                if (not version or version <= 20) and not language:match("latest") then
-                    isatleastcpp23 = false
-                    break
-                end
-            end
-        end
-        local stdmodulesdir
-        local msvc = target:toolchain("msvc")
-        if msvc then
-            local vcvars = msvc:config("vcvars")
-            if vcvars.VCInstallDir and vcvars.VCToolsVersion and semver.compare(vcvars.VCToolsVersion, "14.35") > 0 then
-                stdmodulesdir = path.join(vcvars.VCInstallDir, "Tools", "MSVC", vcvars.VCToolsVersion, "modules")
-            end
-        end
-        target:data_set("c++.msvc.enable_std_import", isatleastcpp23 and os.isdir(stdmodulesdir))
-    end
-end
-
--- provide toolchain include dir for stl headerunit when p1689 is not supported
-function toolchain_includedirs(target)
-    for _, toolchain_inst in ipairs(target:toolchains()) do
-        if toolchain_inst:name() == "msvc" then
-            local vcvars = toolchain_inst:config("vcvars")
-            if vcvars.VCInstallDir and vcvars.VCToolsVersion then
-                return { path.join(vcvars.VCInstallDir, "Tools", "MSVC", vcvars.VCToolsVersion, "include") }
-            end
-            break
-        end
-    end
-    raise("msvc toolchain includedirs not found!")
-end
-
--- generate dependency files
-function generate_dependencies(target, sourcebatch, opt)
-    local msvc = target:toolchain("msvc")
-    local scandependenciesflag = get_scandependenciesflag(target)
-    local ifcoutputflag = get_ifcoutputflag(target)
-    local common_flags = {"-TP", scandependenciesflag}
-    local changed = false
-    for _, sourcefile in ipairs(sourcebatch.sourcefiles) do
-        local dependfile = target:dependfile(sourcefile)
-        depend.on_changed(function ()
-            if opt.progress then
-                progress.show(opt.progress, "${color.build.object}generating.module.deps %s", sourcefile)
-            end
-            local outputdir = common.get_outputdir(target, sourcefile)
-
-            local jsonfile = path.join(outputdir, path.filename(sourcefile) .. ".module.json")
-            if scandependenciesflag and not target:policy("build.c++.msvc.fallbackscanner") then
-                local flags = {jsonfile, sourcefile, ifcoutputflag, outputdir, "-Fo" .. target:objectfile(sourcefile)}
-                _compile(target, table.join(common_flags, flags), sourcefile)
-            else
-                common.fallback_generate_dependencies(target, jsonfile, sourcefile, function(file)
-                    local compinst = target:compiler("cxx")
-                    local compflags = compinst:compflags({sourcefile = file, target = target})
-                    local ifile = path.translate(path.join(outputdir, path.filename(file) .. ".i"))
-                    os.vrunv(compinst:program(), table.join(compflags,
-                        {"/P", "-TP", file,  "/Fi" .. ifile}), {envs = msvc:runenvs()})
-                    local content = io.readfile(ifile)
-                    os.rm(ifile)
-                    return content
-                end)
-            end
-            changed = true
-
-            local dependinfo = io.readfile(jsonfile)
-            return { moduleinfo = dependinfo }
-        end, {dependfile = dependfile, files = {sourcefile}, changed = target:is_rebuilt()})
-    end
-    return changed
-end
-
--- generate header unit module bmi for batchjobs
-function generate_headerunit_for_batchjob(target, name, flags, objectfile, index, total)
-    -- don't generate same header unit bmi at the same time across targets
-    if not common.memcache():get2(name, "generating") then
-        local common_flags = {"-TP", "-c"}
-        common.memcache():set2(name, "generating", true)
-        progress.show((index * 100) / total, "${color.build.object}compiling.headerunit.$(mode) %s", name)
-        _compile(target, table.join(common_flags, flags))
-        _add_objectfile_to_link_arguments(target, objectfile)
-        common.memcache():set2(name, "generating", false)
-    end
-end
-
--- generate header unit module bmi for batchcmds
-function generate_headerunit_for_batchcmds(target, name, flags, objectfile, batchcmds, opt)
-    local common_flags = {"-TP", "-c"}
-    batchcmds:show_progress(opt.progress, "${color.build.object}compiling.headerunit.$(mode) %s", name)
-    _batchcmds_compile(batchcmds, target, table.join(common_flags, flags))
-    _add_objectfile_to_link_arguments(target, objectfile)
-end
-
--- generate target stl header unit modules for batchjobs
-function generate_stl_headerunits_for_batchjobs(target, batchjobs, headerunits, opt)
-    local stlcachedir = common.stlmodules_cachedir(target, {mkdir = true})
-
-    -- get flags
-    local exportheaderflag = get_exportheaderflag(target)
-    local headerunitflag = get_headerunitflag(target)
-    local headernameflag = get_headernameflag(target)
-    local ifcoutputflag = get_ifcoutputflag(target)
-    assert(headerunitflag and headernameflag and exportheaderflag, "compiler(msvc): does not support c++ header units!")
-
-    -- flush job
-    local flushjob = batchjobs:addjob(target:name() .. "_stl_headerunits_flush_mapper", function(index, total)
-        _flush_mapper(target)
-    end, {rootjob = opt.rootjob})
-
-    -- build headerunits
-    for _, headerunit in ipairs(headerunits) do
-        local bmifile = path.join(stlcachedir, headerunit.name .. get_bmi_extension())
-        local objectfile = bmifile .. ".obj"
-        batchjobs:addjob(headerunit.name, function(index, total)
-            depend.on_changed(function()
-                local flags = {
-                    exportheaderflag,
-                    headernameflag .. ":angle",
-                    headerunit.name,
-                    ifcoutputflag,
-                    headerunit.name:startswith("experimental/") and path.join(stlcachedir, "experimental") or stlcachedir,
-                    "-Fo" .. objectfile
-                }
-                generate_headerunit_for_batchjob(target, headerunit.name, flags, objectfile, index, total)
-
-            end, {dependfile = target:dependfile(bmifile), files = {headerunit.path}, changed = target:is_rebuilt()})
-            _add_module_to_mapper(target, headerunitflag .. ":angle", headerunit.name, headerunit.name, objectfile, bmifile)
-        end, {rootjob = flushjob})
-    end
-end
-
--- generate target stl header units for batchcmds
-function generate_stl_headerunits_for_batchcmds(target, batchcmds, headerunits, opt)
-    local stlcachedir = common.stlmodules_cachedir(target, {mkdir = true})
-    local exportheaderflag = get_exportheaderflag(target)
-    local headerunitflag = get_headerunitflag(target)
-    local headernameflag = get_headernameflag(target)
-    local ifcoutputflag = get_ifcoutputflag(target)
-    assert(headerunitflag and headernameflag and exportheaderflag, "compiler(msvc): does not support c++ header units!")
-
-    -- build headerunits
-    local depmtime = 0
-    for _, headerunit in ipairs(headerunits) do
-        local bmifile = path.join(stlcachedir, headerunit.name .. get_bmi_extension())
-        local objectfile = bmifile .. ".obj"
-        local flags = {
-            exportheaderflag,
-            headernameflag .. ":angle",
-            headerunit.name,
-            ifcoutputflag,
-            path(headerunit.name:startswith("experimental/") and path.join(stlcachedir, "experimental") or stlcachedir),
-            path(objectfile, function (p) return "-Fo" .. p end)}
-        generate_headerunit_for_batchcmds(target, headerunit.name, flags, objectfile, batchcmds, opt)
-        batchcmds:add_depfiles(headerunit.path)
-        _add_module_to_mapper(target, headerunitflag .. ":angle", headerunit.name, headerunit.name, objectfile, bmifile)
-        depmtime = math.max(depmtime, os.mtime(bmifile))
-    end
-    batchcmds:set_depmtime(depmtime)
-    _flush_mapper(target)
-end
-
--- generate target user header units for batchcmds
-function generate_user_headerunits_for_batchjobs(target, batchjobs, headerunits, opt)
-    -- get flags
-    local exportheaderflag = get_exportheaderflag(target)
-    local headerunitflag = get_headerunitflag(target)
-    local headernameflag = get_headernameflag(target)
-    local ifcoutputflag = get_ifcoutputflag(target)
-    assert(headerunitflag and headernameflag and exportheaderflag, "compiler(msvc): does not support c++ header units!")
-
-    -- flush job
-    local flushjob = batchjobs:addjob(target:name() .. "_user_headerunits_flush_mapper", function(index, total)
-        _flush_mapper(target)
-    end, {rootjob = opt.rootjob})
-
-    -- build headerunits
-    for _, headerunit in ipairs(headerunits) do
-        local file = path.relative(headerunit.path, target:scriptdir())
-        local objectfile = target:objectfile(file)
-        local outputdir = common.get_outputdir(target, headerunit)
-        local bmifilename = path.basename(objectfile) .. get_bmi_extension()
-        local bmifile = path.join(outputdir, bmifilename)
-        batchjobs:addjob(headerunit.name, function (index, total)
-            depend.on_changed(function()
-                local objectdir = path.directory(objectfile)
-                if not os.isdir(objectdir) then
-                    os.mkdir(objectdir)
-                end
-                if not os.isdir(outputdir) then
-                    os.mkdir(outputdir)
-                end
-
-                -- generate headerunit
-                local flags = {
-                    exportheaderflag,
-                    headernameflag .. headerunit.type,
-                    headerunit.path,
-                    ifcoutputflag,
-                    outputdir,
-                    "/Fo" .. objectfile
-                }
-                generate_headerunit_for_batchjob(target, headerunit.name, flags, objectfile, index, total)
-            end, {dependfile = target:dependfile(bmifile), files = {headerunit.path}, changed = target:is_rebuilt()})
-            _add_module_to_mapper(target, headerunitflag, headerunit.name, headerunit.path, objectfile,  bmifile)
-        end, {rootjob = flushjob})
-    end
-end
-
--- generate target user header units for batchcmds
-function generate_user_headerunits_for_batchcmds(target, batchcmds, headerunits, opt)
-    local exportheaderflag = get_exportheaderflag(target)
-    local headerunitflag = get_headerunitflag(target)
-    local headernameflag = get_headernameflag(target)
-    local ifcoutputflag = get_ifcoutputflag(target)
-    assert(headerunitflag and headernameflag and exportheaderflag, "compiler(msvc): does not support c++ header units!")
-
-    -- build headerunits
-    local depmtime = 0
-    for _, headerunit in ipairs(headerunits) do
-        local file = path.relative(headerunit.path, target:scriptdir())
-        local objectfile = target:objectfile(file)
-        local outputdir = common.get_outputdir(target, headerunit)
-        batchcmds:mkdir(outputdir)
-
-        local bmifilename = path.basename(objectfile) .. get_bmi_extension()
-        local bmifile = path.join(outputdir, bmifilename)
-        batchcmds:mkdir(path.directory(objectfile))
-
-        local flags = {
-            exportheaderflag,
-            headernameflag .. headerunit.type,
-            headerunit.path,
-            ifcoutputflag,
-            outputdir,
-            "/Fo" .. objectfile
-        }
-        generate_headerunit_for_batchcmds(target, headerunit.name, flags, objectfile, batchcmds, opt)
-        batchcmds:add_depfiles(headerunit.path)
-
-        _add_module_to_mapper(target, headerunitflag, headerunit.name, headerunit.path, objectfile,  bmifile)
-
-        depmtime = math.max(depmtime, os.mtime(bmifile))
-    end
-    batchcmds:set_depmtime(depmtime)
-    _flush_mapper(target)
-end
-
--- build module files for batchjobs
-function build_modules_for_batchjobs(target, batchjobs, objectfiles, modules, opt)
-
-    -- get flags
-    local ifcoutputflag = get_ifcoutputflag(target)
-    local interfaceflag = get_interfaceflag(target)
-    local referenceflag = get_referenceflag(target)
-    local internalpartitionflag = get_internalpartitionflag(target)
-
-    -- flush job
-    local flushjob = batchjobs:addjob(target:name() .. "_modules", function(index, total)
-        _flush_mapper(target)
-    end, {rootjob = opt.rootjob})
-
-    if target:data("c++.msvc.enable_std_import") then
-        for objectfile, module in pairs(get_stdmodules(target)) do
-            table.insert(objectfiles, objectfile)
-            modules[objectfile] = module
-            modules[objectfile].external = true
-        end
-    end
-
-    local modulesjobs = {}
-    for _, objectfile in ipairs(objectfiles) do
-        local module = modules[objectfile]
-        if module then
-            local cppfile = module.cppfile
-            local name, provide
-            if module.provides then
-                -- assume there that provides is only one, until we encounter the case
-                local length = 0
-                for k, v in pairs(module.provides) do
-                    length = length + 1
-                    name = k
-                    provide = v
-                    cppfile = provide.sourcefile
-                    if length > 1 then
-                        raise("multiple provides are not supported now!")
-                    end
-                    break
-                end
-            end
-            local moduleinfo = table.copy(provide) or {}
-            local flags = {"-TP"}
-            local dependfile = target:dependfile(objectfile)
-
-            if provide then
-                table.join2(flags, {ifcoutputflag, path(provide.bmi), provide.interface and interfaceflag or internalpartitionflag})
-                dependfile = target:dependfile(provide.bmi)
-
-                local fileconfig = target:fileconfig(cppfile)
-                if fileconfig and fileconfig.install then
-                    batchjobs:addjob(name .. "_metafile", function(index, total)
-                        local metafilepath = common.get_metafile(target, cppfile)
-                        depend.on_changed(function()
-                            progress.show((index * 100) / total, "${color.build.object}generating.module.metadata %s", name)
-                            local metadata = common.generate_meta_module_info(target, name, cppfile, module.requires)
-                            json.savefile(metafilepath, metadata)
-                        end, {dependfile = target:dependfile(metafilepath), files = {cppfile}, changed = target:is_rebuilt()})
-                    end, {rootjob = flushjob})
-                end
-            end
-
-            table.join2(moduleinfo, {
-                name = name or cppfile,
-                deps = table.keys(module.requires or {}),
-                sourcefile = cppfile,
-                job = batchjobs:newjob(name or cppfile, function(index, total)
-                    -- append module mapper flags first
-                    -- @note we add it at the end to ensure that the full modulemap are already stored in the mapper
-                    local requiresflags
-                    if module.requires then
-                        requiresflags = get_requiresflags(target, module.requires, {expand = true})
-                    end
-                    local _flags = table.join(flags, requiresflags or {})
-
-                    if provide or common.has_module_extension(cppfile) then
-                        if not common.memcache():get2(name or cppfile, "compiling") then
-                            if name and module.external then
-                                common.memcache():set2(name or cppfile, "compiling", true)
-                            end
-                            _build_modulefile(target, cppfile, {
-                                objectfile = objectfile,
-                                dependfile = dependfile,
-                                name = name or module.cppfile,
-                                flags = _flags,
-                                progress = (index * 100) / total})
-                        end
-                        _add_objectfile_to_link_arguments(target, objectfile)
-                    elseif requiresflags then
-                        requiresflags = get_requiresflags(target, module.requires)
-                        target:fileconfig_add(cppfile, {force = {cxxflags = table.join(flags, requiresflags)}})
-                    end
-
-                    if provide then
-                        _add_module_to_mapper(target, referenceflag, name, name, objectfile, provide.bmi, requiresflags)
-                    end
-                end)})
-            modulesjobs[name or cppfile] = moduleinfo
-        end
-    end
-
-    -- build batchjobs for modules
-    common.build_batchjobs_for_modules(modulesjobs, batchjobs, flushjob)
-end
-
--- build module files for batchcmds
-function build_modules_for_batchcmds(target, batchcmds, objectfiles, modules, opt)
-
-    -- get flags
-    local ifcoutputflag = get_ifcoutputflag(target)
-    local interfaceflag = get_interfaceflag(target)
-    local referenceflag = get_referenceflag(target)
-    local internalpartitionflag = get_internalpartitionflag(target)
-
-    if target:data("c++.msvc.enable_std_import") then
-        for objectfile, module in pairs(get_stdmodules(target)) do
-            table.insert(objectfiles, objectfile)
-            modules[objectfile] = module
-        end
-    end
-
-    -- build modules
-    local depmtime = 0
-    for _, objectfile in ipairs(objectfiles) do
-        local module = modules[objectfile]
-        if module then
-            local cppfile = module.cppfile
-            local name, provide
-            if module.provides then
-                local length = 0
-                for k, v in pairs(module.provides) do
-                    length = length + 1
-                    name = k
-                    provide = v
-                    cppfile = provide.sourcefile
-                    if length > 1 then
-                        raise("multiple provides are not supported now!")
-                    end
-                    break
-                end
-            end
-            -- append required modulemap flags to module
-            local requiresflags
-            if module.requires then
-                requiresflags = get_requiresflags(target, module.requires, {expand = true})
-            end
-
-            local flags = table.join({"-TP", "-c", path(cppfile), path(objectfile, function (p) return "-Fo" .. p end)})
-            if provide or common.has_module_extension(cppfile) then
-                if provide then
-                    table.join2(flags, {ifcoutputflag, path(provide.bmi), provide.interface and interfaceflag or internalpartitionflag})
-                end
-
-                batchcmds:show_progress(opt.progress, "${color.build.object}compiling.module.$(mode) %s", name or cppfile)
-                batchcmds:mkdir(path.directory(objectfile))
-                _batchcmds_compile(batchcmds, target, table.join(flags, requiresflags or {}), cppfile)
-                batchcmds:add_depfiles(cppfile)
-                _add_objectfile_to_link_arguments(target, path.translate(objectfile))
-                if provide then
-                    _add_module_to_mapper(target, referenceflag, name, name, objectfile, provide.bmi, requiresflags)
-                    -- add requiresflags to module. it will be used for project generation
-                    target:fileconfig_add(cppfile, {force = {cxxflags = requiresflags}})
-                end
-                depmtime = math.max(depmtime, os.mtime(provide and provide.bmi or objectfile))
-            elseif requiresflags then
-                requiresflags = get_requiresflags(target, module.requires)
-                target:fileconfig_add(cppfile, {force = {cxxflags = table.join(flags, requiresflags)}})
-            end
-        end
-    end
-
-    batchcmds:set_depmtime(depmtime)
-    _flush_mapper(target)
-end
-
-function get_stdmodules(target)
-    local modules = {}
-
-    -- build c++23 standard modules if needed
-    if target:data("c++.msvc.enable_std_import") then
-        local msvc = target:toolchain("msvc")
-        if msvc then
-            local vcvars = msvc:config("vcvars")
-            if vcvars.VCInstallDir and vcvars.VCToolsVersion then
-                local stdmodulesdir = path.join(vcvars.VCInstallDir, "Tools", "MSVC", vcvars.VCToolsVersion, "modules")
-                assert(stdmodulesdir, "Can't enable C++23 std modules, directory missing !")
-
-                local stlcachedir = common.stlmodules_cachedir(target)
-                local modulefile = path.join(stdmodulesdir, "std.ixx")
-                local bmifile = path.join(stlcachedir, "std.ixx" .. get_bmi_extension())
-                local objfile = bmifile .. ".obj"
-                modules[objfile] = {provides = {std = {interface = true, sourcefile = modulefile, bmi = bmifile}}}
-                stlcachedir = common.stlmodules_cachedir(target)
-                modulefile = path.join(stdmodulesdir, "std.compat.ixx")
-                bmifile = path.join(stlcachedir, "std.compat.ixx" .. get_bmi_extension())
-                objfile = bmifile .. ".obj"
-                modules[objfile] = {provides = {["std.compat"] = {interface = true, sourcefile = modulefile, bmi = bmifile}}, requires = {std = {unique = false, method = "by-name"}}}
-            end
-        end
-    end
-    return modules
-end
-
-function get_bmi_extension()
-    return ".ifc"
-end
-
-function get_modulesflag(target)
-    local modulesflag = _g.modulesflag
-    if modulesflag == nil then
-        local compinst = target:compiler("cxx")
-        if compinst:has_flags("-experimental:module", "cxxflags", {flagskey = "cl_experimental_module"}) then
-            modulesflag = "-experimental:module"
-        end
-        local msvc = target:toolchain("msvc")
-        local vcvars = msvc:config("vcvars")
-        if vcvars.VCInstallDir and vcvars.VCToolsVersion and semver.compare(vcvars.VCToolsVersion, "14.29") < 0 then
-            assert(modulesflag, "compiler(msvc): does not support c++ module!")
-        end
-        _g.modulesflag = modulesflag or false
-    end
-    return modulesflag or nil
-end
-
-function get_ifcoutputflag(target)
-    local ifcoutputflag = _g.ifcoutputflag
-    if ifcoutputflag == nil then
-        local compinst = target:compiler("cxx")
-        if compinst:has_flags({"-ifcOutput", os.tmpfile()}, "cxxflags", {flagskey = "cl_ifc_output"})  then
-            ifcoutputflag = "-ifcOutput"
-        end
-        assert(ifcoutputflag, "compiler(msvc): does not support c++ module flag(/ifcOutput)!")
-        _g.ifcoutputflag = ifcoutputflag or false
-    end
-    return ifcoutputflag or nil
-end
-
-function get_ifcsearchdirflag(target)
-    local ifcsearchdirflag = _g.ifcsearchdirflag
-    if ifcsearchdirflag == nil then
-        local compinst = target:compiler("cxx")
-        if compinst:has_flags({"-ifcSearchDir", os.tmpdir()}, "cxxflags", {flagskey = "cl_ifc_search_dir"})  then
-            ifcsearchdirflag = "-ifcSearchDir"
-        end
-        assert(ifcsearchdirflag, "compiler(msvc): does not support c++ module flag(/ifcSearchDir)!")
-        _g.ifcsearchdirflag = ifcsearchdirflag or false
-    end
-    return ifcsearchdirflag or nil
-end
-
-function get_interfaceflag(target)
-    local interfaceflag = _g.interfaceflag
-    if interfaceflag == nil then
-        local compinst = target:compiler("cxx")
-        if compinst:has_flags("-interface", "cxxflags", {flagskey = "cl_interface"}) then
-            interfaceflag = "-interface"
-        end
-        assert(interfaceflag, "compiler(msvc): does not support c++ module flag(/interface)!")
-        _g.interfaceflag = interfaceflag or false
-    end
-    return interfaceflag
-end
-
-function get_referenceflag(target)
-    local referenceflag = _g.referenceflag
-    if referenceflag == nil then
-        local compinst = target:compiler("cxx")
-        if compinst:has_flags({"-reference", "Foo=" .. os.tmpfile()}, "cxxflags", {flagskey = "cl_reference"}) then
-            referenceflag = "-reference"
-        end
-        assert(referenceflag, "compiler(msvc): does not support c++ module flag(/reference)!")
-        _g.referenceflag = referenceflag or false
-    end
-    return referenceflag or nil
-end
-
-function get_headernameflag(target)
-    local headernameflag = _g.headernameflag
-    if headernameflag == nil then
-        local compinst = target:compiler("cxx")
-        if compinst:has_flags({"-std:c++latest", "-exportHeader", "-headerName:quote"}, "cxxflags", {flagskey = "cl_header_name_quote"}) and
-        compinst:has_flags({"-std:c++latest", "-exportHeader", "-headerName:angle"}, "cxxflags", {flagskey = "cl_header_name_angle"}) then
-            headernameflag = "-headerName"
-        end
-        _g.headernameflag = headernameflag or false
-    end
-    return headernameflag or nil
-end
-
-function get_headerunitflag(target)
-    local headerunitflag = _g.headerunitflag
-    if headerunitflag == nil then
-        local compinst = target:compiler("cxx")
-        local ifcfile = os.tmpfile()
-        if compinst:has_flags({"-std:c++latest", "-headerUnit:quote", "foo.h=" .. ifcfile}, "cxxflags", {flagskey = "cl_header_unit_quote"}) and
-        compinst:has_flags({"-std:c++latest", "-headerUnit:angle", "foo.h=" .. ifcfile}, "cxxflags", {flagskey = "cl_header_unit_angle"}) then
-            headerunitflag = "-headerUnit"
-        end
-        _g.headerunitflag = headerunitflag or false
-    end
-    return headerunitflag or nil
-end
-
-function get_exportheaderflag(target)
-    local exportheaderflag = _g.exportheaderflag
-    if exportheaderflag == nil then
-        if get_headernameflag(target) then
-            exportheaderflag = "-exportHeader"
-        end
-        _g.exportheaderflag = exportheaderflag or false
-    end
-    return exportheaderflag or nil
-end
-
-function get_scandependenciesflag(target)
-    local scandependenciesflag = _g.scandependenciesflag
-    if scandependenciesflag == nil then
-        local compinst = target:compiler("cxx")
-        local scan_dependencies_jsonfile = os.tmpfile() .. ".json"
-        if compinst:has_flags("-scanDependencies " .. scan_dependencies_jsonfile, "cxflags", {flagskey = "cl_scan_dependencies",
-            on_check = function (ok, errors)
-                if os.isfile(scan_dependencies_jsonfile) then
-                    ok = true
-                end
-                if ok and not os.isfile(scan_dependencies_jsonfile) then
-                    ok = false
-                end
-                return ok, errors
-            end}) then
-            scandependenciesflag = "-scanDependencies"
-        end
-        _g.scandependenciesflag = scandependenciesflag or false
-    end
-    return scandependenciesflag or nil
-end
-
--- get requireflags from module mapper
-function get_requiresflags(target, requires, opt)
-    opt = opt or {}
-    local flags = {}
-    local modulemap = _get_modulemap_from_mapper(target)
-    -- add deps required module flags
-    local already_mapped_modules = {}
-    for name, _ in table.orderpairs(requires) do
-        -- if already in flags, continue
-        if already_mapped_modules[name] then
-            goto continue
-        end
-
-        for _, dep in ipairs(target:orderdeps()) do
-            local modulemap_ = _get_modulemap_from_mapper(dep)
-            if modulemap_[name] then
-                table.join2(flags, modulemap_[name].flag)
-                -- we need to ignore headerunits from deps
-                -- @see https://github.com/xmake-io/xmake/issues/3925
-                local skip = 0
-                for _, flag in ipairs(modulemap_[name].deps) do
-                    if flag:find("headerUnit:quote", 1, true) then
-                        skip = 2
-                    end
-                    if skip == 0 then
-                        table.insert(flags, flag)
-                    end
-                    if skip > 0 then
-                        skip = skip - 1
-                    end
-                end
-                already_mapped_modules[name] = true
-                goto continue
-            end
-        end
-
-        -- append target required module mapper flags
-        if modulemap[name] then
-            table.join2(flags, modulemap[name].flag)
-            table.join2(flags, modulemap[name].deps or {})
-            goto continue
-        end
-
-        ::continue::
-    end
-    local requireflags = {}
-    local contains = {}
-    for i = 1, #flags, 2 do
-        local value = flags[i + 1]
-        if not contains[value] then
-            local key = flags[i]
-            if opt.expand then
-                table.insert(requireflags, key)
-                table.insert(requireflags, value)
-            else
-                table.insert(requireflags, {key, value})
-            end
-            contains[value] = true
-        end
-    end
-    if #requireflags > 0 then
-        return requireflags
-    end
-end
-
-function get_cppversionflag(target)
-    local cppversionflag = _g.cppversionflag
-    if cppversionflag == nil then
-        local compinst = target:compiler("cxx")
-        local flags = compinst:compflags({target = target})
-        cppversionflag = table.find_if(flags, function(v) string.startswith(v, "/std:c++") end) or "/std:c++latest"
-    end
-    return cppversionflag or nil
-end
-
-function get_internalpartitionflag(target)
-    local internalpartitionflag = _g.internalpartitionflag
-    if internalpartitionflag == nil then
-        local compinst = target:compiler("cxx")
-        if compinst:has_flags("-internalPartition", "cxxflags", {flagskey = "cl_internal_partition"}) then
-            internalpartitionflag = "-internalPartition"
-        end
-        _g.internalpartitionflag = internalpartitionflag or false
-    end
-    return internalpartitionflag or nil
-end