The hint `ConvFromXtoItselfNotNeeded:on` does not show the file or the line that caused it

[noahehall]

Description

setting this in config.nims

switch("hintAsError", "ConvFromXtoItselfNotNeeded:on")

does not reveal the file or line with error

going through each file one by one, i found the error.

• create a file with the following

import std/[strformat, oserrors]

when defined(linux):
  echo fmt"{osErrorMsg OSErrorCode osLastError()=}"

Nim Version

[ updated to latest choosenim #devel] $ nim --v Nim Compiler Version 1.9.3 [Linux: amd64] Compiled at 2023-05-01 Copyright (c) 2006-2023 by Andreas Rumpf

active boot switches: -d:release

Current Output

# log from vscode code runner extension
[Running] echo bookofnim.nim | grep -e 'nims$' && nim e "/home/poop/git/foss/bookofnim/src/"bookofnim.nim || nim r --verbosity:0 "/home/poop/git/foss/bookofnim/src/"bookofnim.nim
this at compile time
(1, 24) Error: conversion from OSErrorCode to itself is pointless [ConvFromXtoItselfNotNeeded]

[Done] exited with code=1 in 1.193 seconds

Expected Output

it should include the file and line number

Possible Solution

go through each file one by one ;)~

Additional Information

[update]

the same thing occurs for TimeoutError

import std/[httpclient, json, strformat]

const
  timeout = 1
  endpoint = "https://postman-echo.com/"
  postme = endpoint & "post"
let
  data = %*{"data": { "user": "resu", "pass": "ssap"}}

let fetch = newHttpClient(timeout = timeout)
fetch.headers = newHttpHeaders({ "Content-Type": "application/json" })
echo fmt"{fetch.postContent postme, body = $data=}"

Error: unhandled exception: Call to 'readLine' timed out. [TimeoutError]
Error: execution of an external program failed: '/home/poop/.cache/nim/servers_r/servers_7938C9FA9E19EB2FB2FF0432C7445052F32F0A70'
``

[metagn]

Nothing specific to the hint, fmt just does not propagate line information

import std/strformat

echo fmt"{string ""abc""}"

lib/core/macros.nim(533, 8) Hint: conversion from string to itself is pointless [ConvFromXtoItselfNotNeeded]

Which is kind of expected that it doesn't extract the exact location inside a string literal, but it could at least give the location of the full string literal

(After looking a little bit, fmt has entirely static parameters, so it's a bit hard to extract line information)