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local files = require 'files'
local guide = require 'parser.guide'
local searcher = require 'searcher'
local lang = require 'language'
local define = require 'proto.define'
local library = require 'library'
local function packLibraryArgs(source)
local func = searcher.getLibrary(source)
if not func then
return nil
end
local result = {}
if not func.args then
return result
end
for _, lib in ipairs(func.args) do
result[#result+1] = lib
end
return result
end
local function packCallArgs(source)
local result = {}
if not source.args then
return result
end
if source.node and source.node.type == 'getmethod' then
result[#result+1] = source.node.node
end
for _, arg in ipairs(source.args) do
result[#result+1] = arg
end
return result
end
local function packFuncArgs(source)
local result = {}
if not source.args then
return result
end
if source.parent and source.parent.type == 'setmethod' then
result[#result+1] = source.parent.node
end
for _, arg in ipairs(source.args) do
result[#result+1] = arg
end
return result
end
return function (uri, callback)
local ast = files.getAst(uri)
if not ast then
return
end
guide.eachSourceType(ast.ast, 'call', function (source)
local callArgs = packCallArgs(source)
if not callArgs then
return
end
local func = source.node
local funcArgs
searcher.eachRef(func, function (info)
if info.mode == 'value' then
local src = info.source
if src.type == 'function' then
local args = packFuncArgs(src)
if args and (not funcArgs or #funcArgs < #args) then
funcArgs = args
end
end
end
end)
funcArgs = funcArgs or packLibraryArgs(func)
if not funcArgs then
return
end
local lastArg = funcArgs[#funcArgs]
if lastArg and lastArg.type == '...' then
return
end
for i = #funcArgs + 1, #callArgs do
local arg = callArgs[i]
callback {
start = arg.start,
finish = arg.finish,
tags = { define.DiagnosticTag.Unnecessary },
message = lang.script('DIAG_OVER_MAX_ARGS', #funcArgs, #callArgs)
}
end
end)
end
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