diff options
Diffstat (limited to 'lib/irb/ext/history.rb')
| -rw-r--r-- | lib/irb/ext/history.rb | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/lib/irb/ext/history.rb b/lib/irb/ext/history.rb deleted file mode 100644 index fc304c6f6c..0000000000 --- a/lib/irb/ext/history.rb +++ /dev/null @@ -1,155 +0,0 @@ -# frozen_string_literal: false -# -# history.rb - -# $Release Version: 0.9.6$ -# $Revision$ -# by Keiju ISHITSUKA(keiju@ruby-lang.org) -# -# -- -# -# -# - -module IRB # :nodoc: - - class Context - - NOPRINTING_IVARS.push "@eval_history_values" - - # See #set_last_value - alias _set_last_value set_last_value - - def set_last_value(value) - _set_last_value(value) - - if defined?(@eval_history) && @eval_history - @eval_history_values.push @line_no, @last_value - @workspace.evaluate self, "__ = IRB.CurrentContext.instance_eval{@eval_history_values}" - end - - @last_value - end - - remove_method :eval_history= if method_defined?(:eval_history=) - # The command result history limit. This method is not available until - # #eval_history= was called with non-nil value (directly or via - # setting <code>IRB.conf[:EVAL_HISTORY]</code> in <code>.irbrc</code>). - attr_reader :eval_history - # Sets command result history limit. Default value is set from - # <code>IRB.conf[:EVAL_HISTORY]</code>. - # - # +no+ is an Integer or +nil+. - # - # Returns +no+ of history items if greater than 0. - # - # If +no+ is 0, the number of history items is unlimited. - # - # If +no+ is +nil+, execution result history isn't used (default). - # - # History values are available via <code>__</code> variable, see - # IRB::History. - def eval_history=(no) - if no - if defined?(@eval_history) && @eval_history - @eval_history_values.size(no) - else - @eval_history_values = History.new(no) - IRB.conf[:__TMP__EHV__] = @eval_history_values - @workspace.evaluate(self, "__ = IRB.conf[:__TMP__EHV__]") - IRB.conf.delete(:__TMP_EHV__) - end - else - @eval_history_values = nil - end - @eval_history = no - end - end - - # Represents history of results of previously evaluated commands. - # - # Available via <code>__</code> variable, only if <code>IRB.conf[:EVAL_HISTORY]</code> - # or <code>IRB::CurrentContext().eval_history</code> is non-nil integer value - # (by default it is +nil+). - # - # Example (in `irb`): - # - # # Initialize history - # IRB::CurrentContext().eval_history = 10 - # # => 10 - # - # # Perform some commands... - # 1 + 2 - # # => 3 - # puts 'x' - # # x - # # => nil - # raise RuntimeError - # # ...error raised - # - # # Inspect history (format is "<item number> <evaluated value>": - # __ - # # => 1 10 - # # 2 3 - # # 3 nil - # - # __[1] - # # => 10 - # - class History - - def initialize(size = 16) # :nodoc: - @size = size - @contents = [] - end - - def size(size) # :nodoc: - if size != 0 && size < @size - @contents = @contents[@size - size .. @size] - end - @size = size - end - - # Get one item of the content (both positive and negative indexes work). - def [](idx) - begin - if idx >= 0 - @contents.find{|no, val| no == idx}[1] - else - @contents[idx][1] - end - rescue NameError - nil - end - end - - def push(no, val) # :nodoc: - @contents.push [no, val] - @contents.shift if @size != 0 && @contents.size > @size - end - - alias real_inspect inspect - - def inspect # :nodoc: - if @contents.empty? - return real_inspect - end - - unless (last = @contents.pop)[1].equal?(self) - @contents.push last - last = nil - end - str = @contents.collect{|no, val| - if val.equal?(self) - "#{no} ...self-history..." - else - "#{no} #{val.inspect}" - end - }.join("\n") - if str == "" - str = "Empty." - end - @contents.push last if last - str - end - end -end |