fix package with 3rd namespace

tests/apis/namespace/package/test.lua

@@ -1,3 +1,3 @@
 function main()
-    os.exec("xmake -vD")
+    os.exec("xmake -vD -y")
 end

tests/apis/namespace/package/xmake.lua

@@ -1,19 +1,21 @@
 
-add_requires("package0")
+add_requires("package0", {system = false})
 
 package("package0")
-    on_fetch(function (package)
-        return {defines = "PACKAGE0"}
+    on_load(function (package)
+        package:add("defines", "PACKAGE0")
     end)
+    on_install(function (package) end)
 
 namespace("ns1", function ()
 
-    add_requires("package1")
+    add_requires("package1", {system = false})
 
     package("package1")
-        on_fetch(function (package)
-            return {defines = "NS1_PACKAGE1"}
+        on_load(function (package)
+            package:add("defines", "NS1_PACKAGE1")
         end)
+        on_install(function (package) end)
 
     target("foo")
         set_kind("static")
@@ -22,12 +24,13 @@ namespace("ns1", function ()
 
     namespace("ns2", function()
 
-        add_requires("package2")
+        add_requires("package2", {system = false})
 
         package("package2")
-            on_fetch(function (package)
-                return {defines = "NS2_PACKAGE2"}
+            on_load(function (package)
+                package:add("defines", "NS2_PACKAGE2")
             end)
+            on_install(function (package) end)
 
         target("bar")
             set_kind("static")

xmake/core/base/interpreter.lua

@@ -260,7 +260,7 @@ function interpreter:_api_register_xxx_values(scope_kind, action, apifunc, ...)
 
         -- init current root scope
         local rootkey = scope_kind
-        if namespace then
+        if namespace and scope_kind ~= "__rootkind" then
             rootkey = scope_kind .. "@@" .. namespace .. "::"
         end
         local root = scopes._ROOT[rootkey] or {}

xmake/core/package/package.lua

@@ -55,12 +55,24 @@ local sandbox_module = require("sandbox/modules/import/core/sandbox/module")
 -- new an instance
 function _instance.new(name, info, opt)
     opt = opt or {}
-    local instance = table.inherit(_instance)
     local parts = name:split("::", {plain = true})
-    instance._NAME = parts[#parts]
-    table.remove(parts)
-    if #parts > 0 then
-        instance._NAMESPACE = table.concat(parts, "::")
+    local instance = table.inherit(_instance)
+    local managers = package._memcache():get("managers")
+    if managers == nil and #parts == 2 then
+        managers = hashset.new()
+        for _, dir in ipairs(os.dirs(path.join(os.programdir(), "modules/package/manager/*"))) do
+            managers:insert(path.filename(dir))
+        end
+        package._memcache():set("managers", managers)
+    end
+    if #parts == 2 and managers and managers:has(parts[1]) then
+        instance._NAME = name
+    else
+        instance._NAME = parts[#parts]
+        table.remove(parts)
+        if #parts > 0 then
+            instance._NAMESPACE = table.concat(parts, "::")
+        end
     end
     instance._INFO      = info
     instance._REPO      = opt.repo

xmake/modules/private/action/require/impl/package.lua

@@ -1064,9 +1064,6 @@ function _load_package(packagename, requireinfo, opt)
         end
         _memcache():set2("packageids", packagename, (packageid or 0) + 1)
     end
-    if displayname and package:namespace() then
-        displayname = package:namespace() .. "::" .. displayname
-    end
     package:displayname_set(displayname)
 
     -- disable parallelize if the package cache directory conflicts