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-rw-r--r--changelog.md1
-rw-r--r--doc/en-us/config.md53
-rw-r--r--doc/pt-br/config.md53
-rw-r--r--doc/zh-cn/config.md53
-rw-r--r--doc/zh-tw/config.md53
-rw-r--r--locale/en-us/script.lua2
-rw-r--r--locale/pt-br/script.lua2
-rw-r--r--locale/zh-cn/script.lua2
-rw-r--r--locale/zh-tw/script.lua2
-rw-r--r--script/core/diagnostics/unreachable-code.lua68
-rw-r--r--script/proto/diagnostic.lua1
-rw-r--r--test/diagnostics/common.lua28
-rw-r--r--test/type_inference/init.lua1
13 files changed, 227 insertions, 92 deletions
diff --git a/changelog.md b/changelog.md
index 702b06f6..758eb61a 100644
--- a/changelog.md
+++ b/changelog.md
@@ -13,6 +13,7 @@
```
* `NEW` diagnostics:
* `unknown-operator`
+ * `unreachable-code`
* `NEW` settings:
* `diagnostics.unusedLocalExclude`
* `CHG` support multi-type:
diff --git a/doc/en-us/config.md b/doc/en-us/config.md
index 3f483650..137793cc 100644
--- a/doc/en-us/config.md
+++ b/doc/en-us/config.md
@@ -205,9 +205,9 @@ Array<string>
* ``"newfield-call"``
* ``"err-assign-as-eq"``
* ``"undefined-doc-param"``
-* ``"param-type-mismatch"``
+* ``"undefined-global"``
* ``"global-in-nil-env"``
-* ``"unused-vararg"``
+* ``"redundant-return-value"``
* ``"miss-sep-in-table"``
* ``"unknown-cast-variable"``
* ``"unknown-operator"``
@@ -222,66 +222,67 @@ Array<string>
* ``"redundant-value"``
* ``"duplicate-doc-alias"``
* ``"doc-field-no-class"``
-* ``"no-visible-label"``
* ``"miss-loop-min"``
-* ``"miss-exp"``
+* ``"no-visible-label"``
* ``"miss-loop-max"``
+* ``"miss-exp"``
+* ``"unicode-name"``
* ``"miss-name"``
* ``"empty-block"``
-* ``"unused-local"``
* ``"err-then-as-do"``
-* ``"duplicate-doc-field"``
* ``"redefined-label"``
+* ``"duplicate-doc-field"``
* ``"exp-in-action"``
* ``"set-const"``
-* ``"circle-doc-class"``
* ``"unexpect-lfunc-name"``
-* ``"unsupport-symbol"``
-* ``"unused-label"``
+* ``"circle-doc-class"``
* ``"action-after-return"``
+* ``"miss-space-between"``
+* ``"unused-label"``
* ``"unexpect-dots"``
-* ``"redundant-return-value"``
+* ``"duplicate-index"``
+* ``"miss-field"``
* ``"jump-local-scope"``
* ``"close-non-object"``
-* ``"miss-field"``
+* ``"unexpect-symbol"``
* ``"count-down-loop"``
* ``"cast-type-mismatch"``
* ``"newline-call"``
-* ``"unexpect-symbol"``
+* ``"missing-parameter"``
* ``"block-after-else"``
-* ``"unicode-name"``
* ``"miss-exponent"``
* ``"err-esc"``
* ``"local-limit"``
+* ``"unsupport-symbol"``
* ``"trailing-space"``
* ``"err-c-long-comment"``
-* ``"undefined-global"``
-* ``"undefined-doc-name"``
+* ``"unbalanced-assignments"``
+* ``"duplicate-doc-param"``
* ``"ambiguity-1"``
* ``"deprecated"``
* ``"codestyle-check"``
* ``"missing-return"``
-* ``"missing-parameter"``
+* ``"code-after-break"``
* ``"unused-function"``
* ``"cast-local-type"``
* ``"assign-type-mismatch"``
* ``"duplicate-set-field"``
-* ``"no-unknown"``
+* ``"unused-vararg"``
* ``"need-check-nil"``
* ``"keyword"``
+* ``"unused-local"``
* ``"unknown-diag-code"``
-* ``"return-type-mismatch"``
* ``"err-comment-prefix"``
* ``"lowercase-global"``
-* ``"unbalanced-assignments"``
* ``"redefined-local"``
-* ``"code-after-break"``
-* ``"duplicate-index"``
-* ``"duplicate-doc-param"``
+* ``"undefined-doc-name"``
+* ``"no-unknown"``
+* ``"unreachable-code"``
+* ``"param-type-mismatch"``
* ``"index-in-func-name"``
* ``"miss-symbol"``
* ``"undefined-field"``
-* ``"miss-space-between"``
+* ``"return-type-mismatch"``
## default
@@ -450,6 +451,7 @@ object<string, string>
* empty-block
* redundant-return
* trailing-space
+ * unreachable-code
* unused-function
* unused-label
* unused-local
@@ -568,6 +570,7 @@ object<string, string>
* empty-block
* redundant-return
* trailing-space
+ * unreachable-code
* unused-function
* unused-label
* unused-local
@@ -737,6 +740,7 @@ object<string, string>
"unknown-cast-variable": "Any",
"unknown-diag-code": "Any",
"unknown-operator": "Any",
+ "unreachable-code": "Opened",
/*
Enable unused function diagnostics.
*/
@@ -872,6 +876,7 @@ object<string, string>
"unknown-cast-variable": "Warning",
"unknown-diag-code": "Warning",
"unknown-operator": "Warning",
+ "unreachable-code": "Hint",
/*
Enable unused function diagnostics.
*/
@@ -1271,6 +1276,8 @@ object<string, string>
"package": "default",
"string": "default",
"table": "default",
+ "table.clear": "default",
+ "table.new": "default",
"utf8": "default"
}
```
diff --git a/doc/pt-br/config.md b/doc/pt-br/config.md
index f888efea..97a01630 100644
--- a/doc/pt-br/config.md
+++ b/doc/pt-br/config.md
@@ -205,9 +205,9 @@ Array<string>
* ``"newfield-call"``
* ``"err-assign-as-eq"``
* ``"undefined-doc-param"``
-* ``"param-type-mismatch"``
+* ``"undefined-global"``
* ``"global-in-nil-env"``
-* ``"unused-vararg"``
+* ``"redundant-return-value"``
* ``"miss-sep-in-table"``
* ``"unknown-cast-variable"``
* ``"unknown-operator"``
@@ -222,66 +222,67 @@ Array<string>
* ``"redundant-value"``
* ``"duplicate-doc-alias"``
* ``"doc-field-no-class"``
-* ``"no-visible-label"``
* ``"miss-loop-min"``
-* ``"miss-exp"``
+* ``"no-visible-label"``
* ``"miss-loop-max"``
+* ``"miss-exp"``
+* ``"unicode-name"``
* ``"miss-name"``
* ``"empty-block"``
-* ``"unused-local"``
* ``"err-then-as-do"``
-* ``"duplicate-doc-field"``
* ``"redefined-label"``
+* ``"duplicate-doc-field"``
* ``"exp-in-action"``
* ``"set-const"``
-* ``"circle-doc-class"``
* ``"unexpect-lfunc-name"``
-* ``"unsupport-symbol"``
-* ``"unused-label"``
+* ``"circle-doc-class"``
* ``"action-after-return"``
+* ``"miss-space-between"``
+* ``"unused-label"``
* ``"unexpect-dots"``
-* ``"redundant-return-value"``
+* ``"duplicate-index"``
+* ``"miss-field"``
* ``"jump-local-scope"``
* ``"close-non-object"``
-* ``"miss-field"``
+* ``"unexpect-symbol"``
* ``"count-down-loop"``
* ``"cast-type-mismatch"``
* ``"newline-call"``
-* ``"unexpect-symbol"``
+* ``"missing-parameter"``
* ``"block-after-else"``
-* ``"unicode-name"``
* ``"miss-exponent"``
* ``"err-esc"``
* ``"local-limit"``
+* ``"unsupport-symbol"``
* ``"trailing-space"``
* ``"err-c-long-comment"``
-* ``"undefined-global"``
-* ``"undefined-doc-name"``
+* ``"unbalanced-assignments"``
+* ``"duplicate-doc-param"``
* ``"ambiguity-1"``
* ``"deprecated"``
* ``"codestyle-check"``
* ``"missing-return"``
-* ``"missing-parameter"``
+* ``"code-after-break"``
* ``"unused-function"``
* ``"cast-local-type"``
* ``"assign-type-mismatch"``
* ``"duplicate-set-field"``
-* ``"no-unknown"``
+* ``"unused-vararg"``
* ``"need-check-nil"``
* ``"keyword"``
+* ``"unused-local"``
* ``"unknown-diag-code"``
-* ``"return-type-mismatch"``
* ``"err-comment-prefix"``
* ``"lowercase-global"``
-* ``"unbalanced-assignments"``
* ``"redefined-local"``
-* ``"code-after-break"``
-* ``"duplicate-index"``
-* ``"duplicate-doc-param"``
+* ``"undefined-doc-name"``
+* ``"no-unknown"``
+* ``"unreachable-code"``
+* ``"param-type-mismatch"``
* ``"index-in-func-name"``
* ``"miss-symbol"``
* ``"undefined-field"``
-* ``"miss-space-between"``
+* ``"return-type-mismatch"``
## default
@@ -450,6 +451,7 @@ object<string, string>
* empty-block
* redundant-return
* trailing-space
+ * unreachable-code
* unused-function
* unused-label
* unused-local
@@ -568,6 +570,7 @@ object<string, string>
* empty-block
* redundant-return
* trailing-space
+ * unreachable-code
* unused-function
* unused-label
* unused-local
@@ -737,6 +740,7 @@ object<string, string>
"unknown-cast-variable": "Any",
"unknown-diag-code": "Any",
"unknown-operator": "Any",
+ "unreachable-code": "Opened",
/*
未使用的函数
*/
@@ -872,6 +876,7 @@ object<string, string>
"unknown-cast-variable": "Warning",
"unknown-diag-code": "Warning",
"unknown-operator": "Warning",
+ "unreachable-code": "Hint",
/*
未使用的函数
*/
@@ -1271,6 +1276,8 @@ object<string, string>
"package": "default",
"string": "default",
"table": "default",
+ "table.clear": "default",
+ "table.new": "default",
"utf8": "default"
}
```
diff --git a/doc/zh-cn/config.md b/doc/zh-cn/config.md
index 3e2b1246..888cb25e 100644
--- a/doc/zh-cn/config.md
+++ b/doc/zh-cn/config.md
@@ -205,9 +205,9 @@ Array<string>
* ``"newfield-call"``
* ``"err-assign-as-eq"``
* ``"undefined-doc-param"``
-* ``"param-type-mismatch"``
+* ``"undefined-global"``
* ``"global-in-nil-env"``
-* ``"unused-vararg"``
+* ``"redundant-return-value"``
* ``"miss-sep-in-table"``
* ``"unknown-cast-variable"``
* ``"unknown-operator"``
@@ -222,66 +222,67 @@ Array<string>
* ``"redundant-value"``
* ``"duplicate-doc-alias"``
* ``"doc-field-no-class"``
-* ``"no-visible-label"``
* ``"miss-loop-min"``
-* ``"miss-exp"``
+* ``"no-visible-label"``
* ``"miss-loop-max"``
+* ``"miss-exp"``
+* ``"unicode-name"``
* ``"miss-name"``
* ``"empty-block"``
-* ``"unused-local"``
* ``"err-then-as-do"``
-* ``"duplicate-doc-field"``
* ``"redefined-label"``
+* ``"duplicate-doc-field"``
* ``"exp-in-action"``
* ``"set-const"``
-* ``"circle-doc-class"``
* ``"unexpect-lfunc-name"``
-* ``"unsupport-symbol"``
-* ``"unused-label"``
+* ``"circle-doc-class"``
* ``"action-after-return"``
+* ``"miss-space-between"``
+* ``"unused-label"``
* ``"unexpect-dots"``
-* ``"redundant-return-value"``
+* ``"duplicate-index"``
+* ``"miss-field"``
* ``"jump-local-scope"``
* ``"close-non-object"``
-* ``"miss-field"``
+* ``"unexpect-symbol"``
* ``"count-down-loop"``
* ``"cast-type-mismatch"``
* ``"newline-call"``
-* ``"unexpect-symbol"``
+* ``"missing-parameter"``
* ``"block-after-else"``
-* ``"unicode-name"``
* ``"miss-exponent"``
* ``"err-esc"``
* ``"local-limit"``
+* ``"unsupport-symbol"``
* ``"trailing-space"``
* ``"err-c-long-comment"``
-* ``"undefined-global"``
-* ``"undefined-doc-name"``
+* ``"unbalanced-assignments"``
+* ``"duplicate-doc-param"``
* ``"ambiguity-1"``
* ``"deprecated"``
* ``"codestyle-check"``
* ``"missing-return"``
-* ``"missing-parameter"``
+* ``"code-after-break"``
* ``"unused-function"``
* ``"cast-local-type"``
* ``"assign-type-mismatch"``
* ``"duplicate-set-field"``
-* ``"no-unknown"``
+* ``"unused-vararg"``
* ``"need-check-nil"``
* ``"keyword"``
+* ``"unused-local"``
* ``"unknown-diag-code"``
-* ``"return-type-mismatch"``
* ``"err-comment-prefix"``
* ``"lowercase-global"``
-* ``"unbalanced-assignments"``
* ``"redefined-local"``
-* ``"code-after-break"``
-* ``"duplicate-index"``
-* ``"duplicate-doc-param"``
+* ``"undefined-doc-name"``
+* ``"no-unknown"``
+* ``"unreachable-code"``
+* ``"param-type-mismatch"``
* ``"index-in-func-name"``
* ``"miss-symbol"``
* ``"undefined-field"``
-* ``"miss-space-between"``
+* ``"return-type-mismatch"``
## default
@@ -450,6 +451,7 @@ object<string, string>
* empty-block
* redundant-return
* trailing-space
+ * unreachable-code
* unused-function
* unused-label
* unused-local
@@ -568,6 +570,7 @@ object<string, string>
* empty-block
* redundant-return
* trailing-space
+ * unreachable-code
* unused-function
* unused-label
* unused-local
@@ -737,6 +740,7 @@ object<string, string>
"unknown-cast-variable": "Any",
"unknown-diag-code": "Any",
"unknown-operator": "Any",
+ "unreachable-code": "Opened",
/*
未使用的函数
*/
@@ -871,6 +875,7 @@ object<string, string>
"unknown-cast-variable": "Warning",
"unknown-diag-code": "Warning",
"unknown-operator": "Warning",
+ "unreachable-code": "Hint",
/*
未使用的函数
*/
@@ -1270,6 +1275,8 @@ object<string, string>
"package": "default",
"string": "default",
"table": "default",
+ "table.clear": "default",
+ "table.new": "default",
"utf8": "default"
}
```
diff --git a/doc/zh-tw/config.md b/doc/zh-tw/config.md
index dcd44d63..adf09ae6 100644
--- a/doc/zh-tw/config.md
+++ b/doc/zh-tw/config.md
@@ -205,9 +205,9 @@ Array<string>
* ``"newfield-call"``
* ``"err-assign-as-eq"``
* ``"undefined-doc-param"``
-* ``"param-type-mismatch"``
+* ``"undefined-global"``
* ``"global-in-nil-env"``
-* ``"unused-vararg"``
+* ``"redundant-return-value"``
* ``"miss-sep-in-table"``
* ``"unknown-cast-variable"``
* ``"unknown-operator"``
@@ -222,66 +222,67 @@ Array<string>
* ``"redundant-value"``
* ``"duplicate-doc-alias"``
* ``"doc-field-no-class"``
-* ``"no-visible-label"``
* ``"miss-loop-min"``
-* ``"miss-exp"``
+* ``"no-visible-label"``
* ``"miss-loop-max"``
+* ``"miss-exp"``
+* ``"unicode-name"``
* ``"miss-name"``
* ``"empty-block"``
-* ``"unused-local"``
* ``"err-then-as-do"``
-* ``"duplicate-doc-field"``
* ``"redefined-label"``
+* ``"duplicate-doc-field"``
* ``"exp-in-action"``
* ``"set-const"``
-* ``"circle-doc-class"``
* ``"unexpect-lfunc-name"``
-* ``"unsupport-symbol"``
-* ``"unused-label"``
+* ``"circle-doc-class"``
* ``"action-after-return"``
+* ``"miss-space-between"``
+* ``"unused-label"``
* ``"unexpect-dots"``
-* ``"redundant-return-value"``
+* ``"duplicate-index"``
+* ``"miss-field"``
* ``"jump-local-scope"``
* ``"close-non-object"``
-* ``"miss-field"``
+* ``"unexpect-symbol"``
* ``"count-down-loop"``
* ``"cast-type-mismatch"``
* ``"newline-call"``
-* ``"unexpect-symbol"``
+* ``"missing-parameter"``
* ``"block-after-else"``
-* ``"unicode-name"``
* ``"miss-exponent"``
* ``"err-esc"``
* ``"local-limit"``
+* ``"unsupport-symbol"``
* ``"trailing-space"``
* ``"err-c-long-comment"``
-* ``"undefined-global"``
-* ``"undefined-doc-name"``
+* ``"unbalanced-assignments"``
+* ``"duplicate-doc-param"``
* ``"ambiguity-1"``
* ``"deprecated"``
* ``"codestyle-check"``
* ``"missing-return"``
-* ``"missing-parameter"``
+* ``"code-after-break"``
* ``"unused-function"``
* ``"cast-local-type"``
* ``"assign-type-mismatch"``
* ``"duplicate-set-field"``
-* ``"no-unknown"``
+* ``"unused-vararg"``
* ``"need-check-nil"``
* ``"keyword"``
+* ``"unused-local"``
* ``"unknown-diag-code"``
-* ``"return-type-mismatch"``
* ``"err-comment-prefix"``
* ``"lowercase-global"``
-* ``"unbalanced-assignments"``
* ``"redefined-local"``
-* ``"code-after-break"``
-* ``"duplicate-index"``
-* ``"duplicate-doc-param"``
+* ``"undefined-doc-name"``
+* ``"no-unknown"``
+* ``"unreachable-code"``
+* ``"param-type-mismatch"``
* ``"index-in-func-name"``
* ``"miss-symbol"``
* ``"undefined-field"``
-* ``"miss-space-between"``
+* ``"return-type-mismatch"``
## default
@@ -450,6 +451,7 @@ object<string, string>
* empty-block
* redundant-return
* trailing-space
+ * unreachable-code
* unused-function
* unused-label
* unused-local
@@ -568,6 +570,7 @@ object<string, string>
* empty-block
* redundant-return
* trailing-space
+ * unreachable-code
* unused-function
* unused-label
* unused-local
@@ -737,6 +740,7 @@ object<string, string>
"unknown-cast-variable": "Any",
"unknown-diag-code": "Any",
"unknown-operator": "Any",
+ "unreachable-code": "Opened",
/*
未使用的函式
*/
@@ -871,6 +875,7 @@ object<string, string>
"unknown-cast-variable": "Warning",
"unknown-diag-code": "Warning",
"unknown-operator": "Warning",
+ "unreachable-code": "Hint",
/*
未使用的函式
*/
@@ -1270,6 +1275,8 @@ object<string, string>
"package": "default",
"string": "default",
"table": "default",
+ "table.clear": "default",
+ "table.new": "default",
"utf8": "default"
}
```
diff --git a/locale/en-us/script.lua b/locale/en-us/script.lua
index c46c83c8..fdaa1428 100644
--- a/locale/en-us/script.lua
+++ b/locale/en-us/script.lua
@@ -142,6 +142,8 @@ DIAG_RETURN_TYPE_MISMATCH =
'The type of the {index} return value is `{def}`, but the actual return is `{ref}`.'
DIAG_UNKNOWN_OPERATOR =
'Unknown operator `{}`.'
+DIAG_UNREACHABLE_CODE =
+'Unreachable code.'
MWS_NOT_SUPPORT =
'{} does not support multi workspace for now, I may need to restart to support the new workspace ...'
diff --git a/locale/pt-br/script.lua b/locale/pt-br/script.lua
index 908ba8cc..f7ac6d3d 100644
--- a/locale/pt-br/script.lua
+++ b/locale/pt-br/script.lua
@@ -142,6 +142,8 @@ DIAG_RETURN_TYPE_MISMATCH = -- TODO: need translate!
'The type of the {index} return value is `{def}`, but the actual return is `{ref}`.'
DIAG_UNKNOWN_OPERATOR = -- TODO: need translate!
'Unknown operator `{}`.'
+DIAG_UNREACHABLE_CODE = -- TODO: need translate!
+'Unreachable code.'
MWS_NOT_SUPPORT =
'{} não é suportado múltiplos espaços de trabalho por enquanto, posso precisar reiniciar para estabelecer um novo espaço de trabalho ...'
diff --git a/locale/zh-cn/script.lua b/locale/zh-cn/script.lua
index 02596c04..f50d4b7b 100644
--- a/locale/zh-cn/script.lua
+++ b/locale/zh-cn/script.lua
@@ -142,6 +142,8 @@ DIAG_RETURN_TYPE_MISMATCH =
'第 {index} 个返回值的类型为 `{def}` ,但实际返回的是 `{ref}`。'
DIAG_UNKNOWN_OPERATOR =
'未知的运算符 `{}`。'
+DIAG_UNREACHABLE_CODE =
+'不可达的代码。'
MWS_NOT_SUPPORT =
'{} 目前还不支持多工作目录,我可能需要重启才能支持新的工作目录...'
diff --git a/locale/zh-tw/script.lua b/locale/zh-tw/script.lua
index 7cf5134d..80733139 100644
--- a/locale/zh-tw/script.lua
+++ b/locale/zh-tw/script.lua
@@ -142,6 +142,8 @@ DIAG_RETURN_TYPE_MISMATCH =
'第 {index} 個回傳值的類型為 `{def}` ,但實際回傳的是 `{ref}`。'
DIAG_UNKNOWN_OPERATOR = -- TODO: need translate!
'Unknown operator `{}`.'
+DIAG_UNREACHABLE_CODE = -- TODO: need translate!
+'Unreachable code.'
MWS_NOT_SUPPORT =
'{} 目前還不支援多工作目錄,我可能需要重新啟動才能支援新的工作目錄...'
diff --git a/script/core/diagnostics/unreachable-code.lua b/script/core/diagnostics/unreachable-code.lua
new file mode 100644
index 00000000..28aee6ea
--- /dev/null
+++ b/script/core/diagnostics/unreachable-code.lua
@@ -0,0 +1,68 @@
+local files = require 'files'
+local guide = require 'parser.guide'
+local vm = require 'vm'
+local lang = require 'language'
+local await = require 'await'
+
+---@param block parser.object
+---@return boolean
+local function hasReturn(block)
+ if block.hasReturn or block.hasError then
+ return true
+ end
+ if block.type == 'if' then
+ local hasElse
+ for _, subBlock in ipairs(block) do
+ if not hasReturn(subBlock) then
+ return false
+ end
+ if subBlock.type == 'elseblock' then
+ hasElse = true
+ end
+ end
+ return hasElse == true
+ else
+ if block.type == 'while' then
+ if vm.testCondition(block.filter) then
+ return true
+ end
+ end
+ for _, action in ipairs(block) do
+ if guide.isBlockType(action) then
+ if hasReturn(action) then
+ return true
+ end
+ end
+ end
+ end
+ return false
+end
+
+---@async
+return function (uri, callback)
+ local state = files.getState(uri)
+ if not state then
+ return
+ end
+
+ ---@async
+ guide.eachSourceTypes(state.ast, {'main', 'function'}, function (source)
+ await.delay()
+ if not source.returns then
+ return
+ end
+ for i, action in ipairs(source) do
+ if guide.isBlockType(action)
+ and hasReturn(action) then
+ if i < #source then
+ callback {
+ start = source[i+1].start,
+ finish = source[#source].finish,
+ message = lang.script('DIAG_UNREACHABLE_CODE'),
+ }
+ end
+ return
+ end
+ end
+ end)
+end
diff --git a/script/proto/diagnostic.lua b/script/proto/diagnostic.lua
index d8312dfe..dc550fac 100644
--- a/script/proto/diagnostic.lua
+++ b/script/proto/diagnostic.lua
@@ -47,6 +47,7 @@ m.register {
'redundant-return',
'empty-block',
'code-after-break',
+ 'unreachable-code',
} {
group = 'unused',
severity = 'Hint',
diff --git a/test/diagnostics/common.lua b/test/diagnostics/common.lua
index fab02caf..1ab6ec5c 100644
--- a/test/diagnostics/common.lua
+++ b/test/diagnostics/common.lua
@@ -1958,3 +1958,31 @@ local <!ll!>
]]
config.remove(nil, 'Lua.diagnostics.unusedLocalExclude', 'll_*')
+
+TEST [[
+---@diagnostic disable: undefined-global
+
+if X then
+ return false
+elseif X then
+ return false
+else
+ return false
+end
+<!return true!>
+]]
+
+TEST [[
+---@diagnostic disable: undefined-global
+
+function X()
+ if X then
+ return false
+ elseif X then
+ return false
+ else
+ return false
+ end
+ <!return true!>
+end
+]]
diff --git a/test/type_inference/init.lua b/test/type_inference/init.lua
index 91182af8..30f47900 100644
--- a/test/type_inference/init.lua
+++ b/test/type_inference/init.lua
@@ -3714,3 +3714,4 @@ A.B.C = 1
print(A.B.<?C?>)
]]
+