From 5edda40151d5eed6605009346217d1da3bcb9ae6 Mon Sep 17 00:00:00 2001
From: sumneko <sumneko@hotmail.com>
Date: Wed, 3 Apr 2019 19:33:29 +0800
Subject: =?UTF-8?q?=E6=9B=B4=E6=96=B0=E8=AF=AD=E6=B3=95=E8=A7=A3=E6=9E=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 server/src/parser/ast.lua | 53 ++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 41 insertions(+), 12 deletions(-)

(limited to 'server/src/parser/ast.lua')

diff --git a/server/src/parser/ast.lua b/server/src/parser/ast.lua
index 645d10e9..74f69d3c 100644
--- a/server/src/parser/ast.lua
+++ b/server/src/parser/ast.lua
@@ -283,19 +283,36 @@ local Defs = {
             end
             return ''
         end
-        if v < 0 or v > 0x10ffff then
-            pushError {
-                type = 'UTF8_MAX',
-                start = pos-3,
-                finish = pos+#char,
-                info = {
-                    min = '000000',
-                    max = '10ffff',
+        if State.Version == 'Lua 5.4' then
+            if v < 0 or v > 0x7FFFFFFF then
+                pushError {
+                    type = 'UTF8_MAX',
+                    start = pos-3,
+                    finish = pos+#char,
+                    info = {
+                        min = '00000000',
+                        max = '7FFFFFFF',
+                    }
                 }
-            }
-            return ''
+                return ''
+            end
+        else
+            if v < 0 or v > 0x10FFFF then
+                pushError {
+                    type = 'UTF8_MAX',
+                    start = pos-3,
+                    finish = pos+#char,
+                    version = v <= 0x7FFFFFFF and 'Lua 5.4' or nil,
+                    info = {
+                        min = '000000',
+                        max = '10FFFF',
+                    }
+                }
+                return ''
+            end
+            return utf8_char(v)
         end
-        return utf8_char(v)
+        return ''
     end,
     Number = function (start, number, finish)
         local n = tonumber(number)
@@ -1188,13 +1205,25 @@ local Defs = {
         }
         return rtn, action
     end,
+    ToClose = function (start)
+        if State.Version == 'Lua 5.4' then
+            return
+        end
+        pushError {
+            type = 'TOCLOSE',
+            start = start,
+            finish = start + #'*toclose' - 1,
+            version = 'Lua 5.4',
+        }
+    end
 }
 
-return function (self, lua, mode)
+return function (self, lua, mode, version)
     Errs = {}
     State= {
         Break = 0,
         Label = {{}},
+        Version = version,
     }
     local suc, res, err = pcall(self.grammar, lua, mode, Defs)
     if not suc then
-- 
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