diff options
Diffstat (limited to 'xmake/rules/c++/modules/modules_support/builder.lua')
| -rw-r--r-- | xmake/rules/c++/modules/modules_support/builder.lua | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/xmake/rules/c++/modules/modules_support/builder.lua b/xmake/rules/c++/modules/modules_support/builder.lua index f651e2b69..51e87a8a8 100644 --- a/xmake/rules/c++/modules/modules_support/builder.lua +++ b/xmake/rules/c++/modules/modules_support/builder.lua @@ -21,6 +21,7 @@ -- imports import("core.base.json") import("core.base.option") +import("core.base.hashset") import("async.runjobs") import("private.async.buildjobs") import("core.tool.compiler") @@ -460,3 +461,32 @@ function add_headerunit_to_target_mapper(target, headerunit, bmifile) return deduplicated and true or false end +-- check if dependencies changed +function is_dependencies_changed(target, module) + local cachekey = target:name() .. module.name + + for required, _ in table.orderpairs(module.requires) do + requires = requires or hashset.new() + requires:insert(required) + end + + local oldrequires = compiler_support.memcache():get2(cachekey, "oldrequires") + or compiler_support.localcache():get2(cachekey, "oldrequires") + + local changed = false + if oldrequires and requires then + oldrequires = hashset.from(oldrequires) + if oldrequires:size() ~= requires:size() then + requires_changed = true + else + for required in requires:keys() do + if not oldrequires:has(required) then + requires_changed = true + break + end + end + end + end + + return requires:to_array(), changed +end |