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-rw-r--r--server/locale/en-US/script.lni2
-rw-r--r--server/locale/zh-CN/script.lni2
-rw-r--r--server/src/constant/DiagnosticDefaultSeverity.lua1
-rw-r--r--server/src/core/diagnostics.lua37
-rw-r--r--server/test/diagnostics/init.lua25
5 files changed, 66 insertions, 1 deletions
diff --git a/server/locale/en-US/script.lni b/server/locale/en-US/script.lni
index e7f67a09..9c108203 100644
--- a/server/locale/en-US/script.lni
+++ b/server/locale/en-US/script.lni
@@ -4,6 +4,8 @@ DIAG_UNUSED_LOCAL = 'Unused local `{}`.'
DIAG_UNDEF_GLOBAL = 'Undefined global `{}`.'
DIAG_UNDEF_ENV_CHILD = 'Undefined variable `{}` (overloaded `_ENV` ).'
DIAG_UNDEF_FENV_CHILD = 'Undefined variable `{}` (inside module).'
+DIAG_GLOBAL_IN_NIL_ENV = 'Invalid global (`_ENV` is `nil`).'
+DIAG_GLOBAL_IN_NIL_FENV = 'Invalid global (module environment is `nil`).'
DIAG_UNUSED_LABEL = 'Unused label `{}`.'
DIAG_UNUSED_FUNCTION = 'Unused functions.'
DIAG_UNUSED_VARARG = 'Unused vararg.'
diff --git a/server/locale/zh-CN/script.lni b/server/locale/zh-CN/script.lni
index 51fc6826..b441db5a 100644
--- a/server/locale/zh-CN/script.lni
+++ b/server/locale/zh-CN/script.lni
@@ -4,6 +4,8 @@ DIAG_UNUSED_LOCAL = '未使用的局部变量 `{}`。'
DIAG_UNDEF_GLOBAL = '未定义的全局变量 `{}`。'
DIAG_UNDEF_ENV_CHILD = '未定义的变量 `{}`(重载了 `_ENV` )。'
DIAG_UNDEF_FENV_CHILD = '未定义的变量 `{}`(处于模块中)。'
+DIAG_GLOBAL_IN_NIL_ENV = '不能使用全局变量(`_ENV`被置为了`nil`)。'
+DIAG_GLOBAL_IN_NIL_FENV = '不能使用全局变量(模块被置为了`nil`)。'
DIAG_UNUSED_LABEL = '未使用的标签 `{}`。'
DIAG_UNUSED_FUNCTION = '未使用的函数。'
DIAG_UNUSED_VARARG = '未使用的不定参数。'
diff --git a/server/src/constant/DiagnosticDefaultSeverity.lua b/server/src/constant/DiagnosticDefaultSeverity.lua
index 3cd67528..cc26cab2 100644
--- a/server/src/constant/DiagnosticDefaultSeverity.lua
+++ b/server/src/constant/DiagnosticDefaultSeverity.lua
@@ -2,6 +2,7 @@ return {
['unused-local'] = 'Hint',
['unused-function'] = 'Hint',
['undefined-global'] = 'Warning',
+ ['global-in-nil-env'] = 'Warning',
['unused-label'] = 'Hint',
['unused-vararg'] = 'Hint',
['trailing-space'] = 'Hint',
diff --git a/server/src/core/diagnostics.lua b/server/src/core/diagnostics.lua
index 509fe48c..0e0d85ba 100644
--- a/server/src/core/diagnostics.lua
+++ b/server/src/core/diagnostics.lua
@@ -553,6 +553,29 @@ function mt:searchUndefinedEnvChild(callback)
end)
end
+function mt:searchGlobalInNilEnv(callback)
+ self.vm:eachSource(function (source)
+ if not source:get 'global' then
+ return
+ end
+ local name = source:getName()
+ if name == '' then
+ return
+ end
+ local parentSource = source:get 'parent' :getSource()
+ if parentSource.type == 'nil' then
+ callback(source.start, source.finish, {
+ {
+ start = parentSource.start,
+ finish = parentSource.finish,
+ uri = self.uri,
+ }
+ })
+ end
+ return
+ end)
+end
+
function mt:checkEmmyClass(source, callback)
local class = source:get 'emmy.class'
if not class then
@@ -919,6 +942,20 @@ return function (vm, lines, uri)
}
end
end)
+ -- 全局变量不可用(置空了 `_ENV`)
+ session:doDiagnostics(session.searchGlobalInNilEnv, 'global-in-nil-env', function (related)
+ if vm.envType == '_ENV' then
+ return {
+ message = lang.script.DIAG_GLOBAL_IN_NIL_ENV,
+ related = related,
+ }
+ else
+ return {
+ message = lang.script.DIAG_GLOBAL_IN_NIL_FENV,
+ related = related,
+ }
+ end
+ end)
-- 构建表时重复定义field
session:doDiagnostics(session.searchDuplicateIndex, 'duplicate-index', function (key, related, type)
if type == 'unused' then
diff --git a/server/test/diagnostics/init.lua b/server/test/diagnostics/init.lua
index f0f7096f..555bc0a8 100644
--- a/server/test/diagnostics/init.lua
+++ b/server/test/diagnostics/init.lua
@@ -1,7 +1,8 @@
-local core = require 'core'
+local core = require 'core'
local buildVM = require 'vm'
local parser = require 'parser'
local service = require 'service'
+local config = require 'config'
rawset(_G, 'TEST', true)
@@ -151,6 +152,28 @@ print(1)
_ENV = nil
]]
+config.config.diagnostics.disable['undefined-env-child'] = true
+TEST [[
+_ENV = nil
+<!GLOBAL!> = 1 --> _ENV.GLOBAL = 1
+]]
+
+TEST [[
+_ENV = nil
+local _ = <!GLOBAL!> --> local _ = _ENV.GLOBAL
+]]
+
+TEST [[
+_ENV = {}
+GLOBAL = 1 --> _ENV.GLOBAL = 1
+]]
+
+TEST [[
+_ENV = {}
+local _ = GLOBAL --> local _ = _ENV.GLOBAL
+]]
+
+config.config.diagnostics.disable['undefined-env-child'] = nil
TEST [[
print()
<!('string')!>:sub(1, 1)