1 files changed, 40 insertions, 0 deletions
diff --git a/script/core/diagnostics/undefined-global.lua b/script/core/diagnostics/undefined-global.lua
new file mode 100644
index 00000000..778fc1f1
--- /dev/null
+++ b/script/core/diagnostics/undefined-global.lua
@@ -0,0 +1,40 @@
+local files   = require 'files'
+local vm      = require 'vm'
+local lang    = require 'language'
+local config  = require 'config'
+local guide   = require 'parser.guide'
+
+return function (uri, callback)
+    local ast = files.getAst(uri)
+    if not ast then
+        return
+    end
+
+    -- 遍历全局变量，检查所有没有 set 模式的全局变量
+    guide.eachSourceType(ast.ast, 'getglobal', function (src)
+        local key = guide.getName(src)
+        if not key then
+            return
+        end
+        if config.config.diagnostics.globals[key] then
+            return
+        end
+        if #vm.getGlobalSets(guide.getKeyName(src)) > 0 then
+            return
+        end
+        local message = lang.script('DIAG_UNDEF_GLOBAL', key)
+        -- TODO check other version
+        local otherVersion
+        local customVersion
+        if otherVersion then
+            message = ('%s(%s)'):format(message, lang.script('DIAG_DEFINED_VERSION', table.concat(otherVersion, '/'), config.config.runtime.version))
+        elseif customVersion then
+            message = ('%s(%s)'):format(message, lang.script('DIAG_DEFINED_CUSTOM', table.concat(customVersion, '/')))
+        end
+        callback {
+            start   = src.start,
+            finish  = src.finish,
+            message = message,
+        }
+    end)
+end