fix #1406

1 files changed, 17 insertions, 1 deletions

diff --git a/script/core/diagnostics/unreachable-code.lua b/script/core/diagnostics/unreachable-code.lua
index 772a1764..4f0a38b7 100644
--- a/script/core/diagnostics/unreachable-code.lua
+++ b/script/core/diagnostics/unreachable-code.lua
@@ -5,6 +5,21 @@ local lang   = require 'language'
 local await  = require 'await'
 local define = require 'proto.define'
 
+---@param source parser.object
+---@return boolean
+local function allLiteral(source)
+    local result = true
+    guide.eachSource(source, function (src)
+        if  src.type ~= 'unary'
+        and src.type ~= 'binary'
+        and not guide.isLiteral(src) then
+            result = false
+            return false
+        end
+    end)
+    return result
+end
+
 ---@param block parser.object
 ---@return boolean
 local function hasReturn(block)
@@ -25,7 +40,8 @@ local function hasReturn(block)
     else
         if block.type == 'while' then
             if  vm.testCondition(block.filter)
-            and not block.breaks then
+            and not block.breaks
+            and allLiteral(block.filter) then
                 return true
             end
         end