nixos/lua-lsp/script/core/diagnostics/empty-block.lua

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local files = require 'files'
local guide = require 'parser.guide'
local lang = require 'language'
local define = require 'proto.define'
local await = require 'await'
-- 检查空代码块
-- 但是排除忙等待repeat/while)
---@async
return function (uri, callback)
local ast = files.getState(uri)
if not ast then
return
end
await.delay()
guide.eachSourceType(ast.ast, 'if', function (source)
for _, block in ipairs(source) do
if #block > 0 then
return
end
end
callback {
start = source.start,
finish = source.finish,
tags = { define.DiagnosticTag.Unnecessary },
message = lang.script.DIAG_EMPTY_BLOCK,
}
end)
await.delay()
guide.eachSourceType(ast.ast, 'loop', function (source)
if #source > 0 then
return
end
callback {
start = source.start,
finish = source.finish,
tags = { define.DiagnosticTag.Unnecessary },
message = lang.script.DIAG_EMPTY_BLOCK,
}
end)
await.delay()
guide.eachSourceType(ast.ast, 'in', function (source)
if #source > 0 then
return
end
callback {
start = source.start,
finish = source.finish,
tags = { define.DiagnosticTag.Unnecessary },
message = lang.script.DIAG_EMPTY_BLOCK,
}
end)
end