Merge pull request #7067 from Arthapz/fix-cross-modules

(modules) fix get_stdmodules with cross toolchain

Author: waruqi

xmake/rules/c++/modules/clang/support.lua

@@ -245,9 +245,6 @@ end
 
 function get_stdmodules(target)
 
-    if not target:policy("build.c++.modules.std") then
-        return
-    end
     local cpplib = get_cpplibrary_name(target)
     if cpplib then
         if cpplib == "c++" then

xmake/rules/c++/modules/gcc/support.lua

@@ -168,9 +168,6 @@ function _get_std_module_manifest_path(target)
 end
 
 function get_stdmodules(target)
-    if not target:policy("build.c++.modules.std") then
-        return
-    end
     local modules_json_path = _get_std_module_manifest_path(target)
     if modules_json_path then
         local modules_json = json.loadfile(modules_json_path)

xmake/rules/c++/modules/msvc/support.lua

@@ -123,9 +123,6 @@ end
 -- build c++23 standard modules if needed
 function get_stdmodules(target, opt)
     opt = opt or {}
-    if not target:policy("build.c++.modules.std") then
-        return
-    end
     local msvc
     if opt.toolchain then
         msvc = toolchain.load("msvc", {plat = opt.toolchain:plat(), arch = opt.toolchain:arch()})

xmake/rules/c++/modules/scanner.lua

@@ -274,7 +274,7 @@ function _get_targetdeps_modules(target)
             if sourcebatch.sourcefiles then
                 for _, sourcefile in ipairs(sourcebatch.sourcefiles) do
                     modules = modules or {}
-                    if support.is_public(dep, sourcefile) or stdmodules_set:has(sourcefile) then
+                    if support.is_public(dep, sourcefile) or (stdmodules_set and stdmodules_set:has(sourcefile)) then
                         local _fileconfig = dep:fileconfig(sourcefile)
                         local fileconfig = {}
                         if _fileconfig then

xmake/rules/c++/modules/support.lua

@@ -315,7 +315,13 @@ end
 
 -- get stdmodules
 function get_stdmodules(target)
+    if not target:policy("build.c++.modules.std") then
+        return
+    end
     local cpplib = get_cpplibrary_name(target)
+    if not cpplib then
+        return
+    end
     local stdmodules = memcache():get2(cpplib, "c++.modules.stdmodules")
     local stdmodules_set = memcache():get2(cpplib, "c++.modules.stdmodules_set")
     if not stdmodules or not stdmodules_set then