Skip to content

Precompute ANSI escape sequences at compile time #15749

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
josevalim merged 1 commit into from
Aug 14, 2026
+4 −2
Merged

Precompute ANSI escape sequences at compile time #15749

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 4 additions & 2 deletions lib/elixir/lib/io/ansi.ex
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -111,13 +111,15 @@ defmodule IO.ANSI do
end

defsequence = fn name, code, terminator ->
sequence = "\e[#{code}#{terminator}"

@spec unquote(name)() :: String.t()
def unquote(name)() do
"\e[#{unquote(code)}#{unquote(terminator)}"
unquote(sequence)
end

defp format_sequence(unquote(name)) do
unquote(name)()
unquote(sequence)
end
end

Expand Down
Loading