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local matcher = require 'matcher'
local DiagnosticSeverity = {
Error = 1,
Warning = 2,
Information = 3,
Hint = 4,
}
--[[
/**
* Represents a related message and source code location for a diagnostic. This should be
* used to point to code locations that cause or related to a diagnostics, e.g when duplicating
* a symbol in a scope.
*/
export interface DiagnosticRelatedInformation {
/**
* The location of this related diagnostic information.
*/
location: Location;
/**
* The message of this related diagnostic information.
*/
message: string;
}
]]--
local function getRange(start, finish, lines)
local start_row, start_col = lines:rowcol(start)
local finish_row, finish_col = lines:rowcol(finish)
return {
start = {
line = start_row - 1,
character = start_col - 1,
},
['end'] = {
line = finish_row - 1,
-- 这里不用-1，因为前端期待的是匹配完成后的位置
character = finish_col,
},
}
end
local function createInfo(data, lines)
local diagnostic = {
source = 'LSP',
range = getRange(data.start, data.finish, lines),
severity = DiagnosticSeverity[data.level],
message = data.message,
}
if data.related then
local related = {}
for i, info in ipairs(data.related) do
local message = info.message
if not message then
local start_line = lines:rowcol(info.start)
local finish_line = lines:rowcol(info.finish)
local chars = {}
for n = start_line, finish_line do
chars[#chars+1] = lines:line(n)
end
message = table.concat(chars, '\n')
end
related[i] = {
message = message,
location = {
uri = info.uri,
range = getRange(info.start, info.finish, lines),
}
}
end
diagnostic.relatedInformation = related
end
return diagnostic
end
return function (lsp, params)
local results = params.results
local ast = params.ast
local lines = params.lines
local uri = params.uri
local datas = matcher.diagnostics(ast, results, lines, uri)
if not datas then
-- 返回空表以清空之前的结果
return {}
end
local diagnostics = {}
for i, data in ipairs(datas) do
diagnostics[i] = createInfo(data, lines)
end
return diagnostics
end
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