diff options
| author | Stan Lo <[email protected]> | 2024-02-16 16:47:32 +0000 |
|---|---|---|
| committer | git <[email protected]> | 2024-02-16 16:47:36 +0000 |
| commit | f5801e2bf404cbb0f673a6ebb040b0ba6cd01b77 (patch) | |
| tree | 8ee0d5041c9d46df4448c80c28ffb929daabe4b4 /lib/irb/command/show_source.rb | |
| parent | 4411cdeef9f49cc295b2456b15a14550e8d88804 (diff) | |
[ruby/irb] Standardize command related names
(https://github.com/ruby/irb/pull/873)
* Replace ExtendCommand with Command and standardize command related names
1. Rename lib/irb/extend-command.rb to lib/irb/command.rb
2. Rename lib/irb/cmd/*.rb to lib/irb/command/*.rb
3. Rename test/irb/test_cmd.rb to test/irb/test_command.rb
4. Rename ExtendCommand to Command
* Alias ExtendCommand to Command and deprecate it
* Rename Command::Nop to Command::Base
* Not deprecate old constants just yet
* Add lib/irb/cmd/nop.rb back
https://github.com/ruby/irb/commit/462c1284af
Diffstat (limited to 'lib/irb/command/show_source.rb')
| -rw-r--r-- | lib/irb/command/show_source.rb | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/lib/irb/command/show_source.rb b/lib/irb/command/show_source.rb new file mode 100644 index 0000000000..cc783e7532 --- /dev/null +++ b/lib/irb/command/show_source.rb @@ -0,0 +1,67 @@ +# frozen_string_literal: true + +require_relative "../source_finder" +require_relative "../pager" +require_relative "../color" + +module IRB + module Command + class ShowSource < Base + category "Context" + description "Show the source code of a given method or constant." + + class << self + def transform_args(args) + # Return a string literal as is for backward compatibility + if args.empty? || string_literal?(args) + args + else # Otherwise, consider the input as a String for convenience + args.strip.dump + end + end + end + + def execute(str = nil) + unless str.is_a?(String) + puts "Error: Expected a string but got #{str.inspect}" + return + end + + str, esses = str.split(" -") + super_level = esses ? esses.count("s") : 0 + source = SourceFinder.new(@irb_context).find_source(str, super_level) + + if source + show_source(source) + elsif super_level > 0 + puts "Error: Couldn't locate a super definition for #{str}" + else + puts "Error: Couldn't locate a definition for #{str}" + end + nil + end + + private + + def show_source(source) + if source.binary_file? + content = "\n#{bold('Defined in binary file')}: #{source.file}\n\n" + else + code = source.colorized_content || 'Source not available' + content = <<~CONTENT + + #{bold("From")}: #{source.file}:#{source.line} + + #{code.chomp} + + CONTENT + end + Pager.page_content(content) + end + + def bold(str) + Color.colorize(str, [:BOLD]) + end + end + end +end |