fix #1365

1 files changed, 8 insertions, 5 deletions

diff --git a/script/core/diagnostics/count-down-loop.lua b/script/core/diagnostics/count-down-loop.lua
index 9bc4b273..88cb06ab 100644
--- a/script/core/diagnostics/count-down-loop.lua
+++ b/script/core/diagnostics/count-down-loop.lua
@@ -10,12 +10,15 @@ return function (uri, callback)
     end
 
     guide.eachSourceType(state.ast, 'loop', function (source)
-        local maxNumer = source.max and tonumber(source.max[1])
-        if maxNumer ~= 1 then
+        local maxNumber = source.max and tonumber(source.max[1])
+        if not maxNumber then
             return
         end
         local minNumber = source.init and tonumber(source.init[1])
-        if minNumber and minNumber <= 1 then
+        if minNumber and maxNumber and minNumber <= maxNumber then
+            return
+        end
+        if not minNumber and maxNumber > 1 then
             return
         end
         if not source.step then
@@ -24,7 +27,7 @@ return function (uri, callback)
                 finish  = source.max.finish,
                 message = lang.script('DIAG_COUNT_DOWN_LOOP'
                     , ('%s, %s'):format(text:sub(
-                        guide.positionToOffset(state, source.init.start),
+                        guide.positionToOffset(state, source.init.start + 1),
                         guide.positionToOffset(state, source.max.finish)
                     ), '-1')
                 )
@@ -37,7 +40,7 @@ return function (uri, callback)
                     finish  = source.step.finish,
                     message = lang.script('DIAG_COUNT_DOWN_LOOP'
                         , ('%s, -%s'):format(text:sub(
-                            guide.positionToOffset(state, source.init.start),
+                            guide.positionToOffset(state, source.init.start + 1),
                             guide.positionToOffset(state, source.max.finish)
                         ), source.step[1])
                     )