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PATH: opt / alt / ruby34 / share / gems / gems / irb-1.14.3 / lib / irb / command

# frozen_string_literal: true

module IRB
  module Command
    class CD < Base
      category "Workspace"
      description "Move into the given object or leave the current context."

help_message(<<~HELP)
        Usage: cd ([target]|..)

IRB uses a stack of workspaces to keep track of context(s), with `pushws` and `popws` commands to manipulate the stack.
        The `cd` command is an attempt to simplify the operation and will be subject to change.

When given:
        - an object, cd will use that object as the new context by pushing it onto the workspace stack.
        - "..", cd will leave the current context by popping the top workspace off the stack.
        - no arguments, cd will move to the top workspace on the stack by popping off all workspaces.

Examples:

cd Foo
          cd Foo.new
          cd @ivar
          cd ..
          cd
      HELP

def execute(arg)
        case arg
        when ".."
          irb_context.pop_workspace
        when ""
          # TODO: decide what workspace commands should be kept, and underlying APIs should look like,
          # and perhaps add a new API to clear the workspace stack.
          prev_workspace = irb_context.pop_workspace
          while prev_workspace
            prev_workspace = irb_context.pop_workspace
          end
        else
          begin
            obj = eval(arg, irb_context.workspace.binding)
            irb_context.push_workspace(obj)
          rescue StandardError => e
            warn "Error: #{e}"
          end
        end
      end
    end
  end
end

[-] subirb.rb [edit]
[-] catch.rb [edit]
[-] continue.rb [edit]
[-] force_exit.rb [edit]
[-] chws.rb [edit]
[-] load.rb [edit]
[-] break.rb [edit]
[-] whereami.rb [edit]
[-] history.rb [edit]
[-] disable_irb.rb [edit]
[-] irb_info.rb [edit]
[-] show_source.rb [edit]
[-] next.rb [edit]
[-] delete.rb [edit]
[-] finish.rb [edit]
[-] step.rb [edit]
[-] debug.rb [edit]
[-] show_doc.rb [edit]
[-] internal_helpers.rb [edit]
[-] info.rb [edit]
[-] pushws.rb [edit]
[-] help.rb [edit]
[-] base.rb [edit]
[-] backtrace.rb [edit]
[-] ls.rb [edit]
[-] cd.rb [edit]
[+] ..
[-] edit.rb [edit]
[-] measure.rb [edit]
[-] exit.rb [edit]
[-] context.rb [edit]