Skip to content

Add repl sub-command #3580

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
kddnewton merged 1 commit into from
Jun 11, 2025
Merged

Add repl sub-command #3580

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
21 changes: 21 additions & 0 deletions bin/prism
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ module Prism
when "parser" then parser(argv)
when "ripper" then ripper(argv)
when "rubyparser" then rubyparser(argv)
when "repl" then repl
else
puts <<~TXT
Usage:
Expand All @@ -35,6 +36,7 @@ module Prism
bin/prism parser [source]
bin/prism ripper [source]
bin/prism rubyparser [source]
bin/prism repl
TXT
end
end
Expand Down Expand Up @@ -324,6 +326,25 @@ module Prism
pp prism
end

# bin/prism repl
def repl
loop do
print "Prism> "

input = gets
break if input.nil?

result = Prism.parse(input.chomp)

statements_node = result.value.statements
statements = statements_node.body

result.errors.each { |e| p(e) }

p(statements.one? ? statements.first : statements)
end
end

############################################################################
# Helpers
############################################################################
Expand Down