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-rw-r--r--ruby_2_2/lib/irb/context.rb419
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diff --git a/ruby_2_2/lib/irb/context.rb b/ruby_2_2/lib/irb/context.rb
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index 9cf9600f02..0000000000
--- a/ruby_2_2/lib/irb/context.rb
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@@ -1,419 +0,0 @@
-#
-# irb/context.rb - irb context
-# $Release Version: 0.9.6$
-# $Revision$
-# by Keiju ISHITSUKA(keiju@ruby-lang.org)
-#
-# --
-#
-#
-#
-require "irb/workspace"
-require "irb/inspector"
-
-module IRB
- # A class that wraps the current state of the irb session, including the
- # configuration of IRB.conf.
- class Context
- # Creates a new IRB context.
- #
- # The optional +input_method+ argument:
- #
- # +nil+:: uses stdin or Readline
- # +String+:: uses a File
- # +other+:: uses this as InputMethod
- def initialize(irb, workspace = nil, input_method = nil, output_method = nil)
- @irb = irb
- if workspace
- @workspace = workspace
- else
- @workspace = WorkSpace.new
- end
- @thread = Thread.current if defined? Thread
-
- # copy of default configuration
- @ap_name = IRB.conf[:AP_NAME]
- @rc = IRB.conf[:RC]
- @load_modules = IRB.conf[:LOAD_MODULES]
-
- @use_readline = IRB.conf[:USE_READLINE]
- @verbose = IRB.conf[:VERBOSE]
- @io = nil
-
- self.inspect_mode = IRB.conf[:INSPECT_MODE]
- self.math_mode = IRB.conf[:MATH_MODE] if IRB.conf[:MATH_MODE]
- self.use_tracer = IRB.conf[:USE_TRACER] if IRB.conf[:USE_TRACER]
- self.use_loader = IRB.conf[:USE_LOADER] if IRB.conf[:USE_LOADER]
- self.eval_history = IRB.conf[:EVAL_HISTORY] if IRB.conf[:EVAL_HISTORY]
-
- @ignore_sigint = IRB.conf[:IGNORE_SIGINT]
- @ignore_eof = IRB.conf[:IGNORE_EOF]
-
- @back_trace_limit = IRB.conf[:BACK_TRACE_LIMIT]
-
- self.prompt_mode = IRB.conf[:PROMPT_MODE]
-
- if IRB.conf[:SINGLE_IRB] or !defined?(IRB::JobManager)
- @irb_name = IRB.conf[:IRB_NAME]
- else
- @irb_name = IRB.conf[:IRB_NAME]+"#"+IRB.JobManager.n_jobs.to_s
- end
- @irb_path = "(" + @irb_name + ")"
-
- case input_method
- when nil
- case use_readline?
- when nil
- if (defined?(ReadlineInputMethod) && STDIN.tty? &&
- IRB.conf[:PROMPT_MODE] != :INF_RUBY)
- @io = ReadlineInputMethod.new
- else
- @io = StdioInputMethod.new
- end
- when false
- @io = StdioInputMethod.new
- when true
- if defined?(ReadlineInputMethod)
- @io = ReadlineInputMethod.new
- else
- @io = StdioInputMethod.new
- end
- end
-
- when String
- @io = FileInputMethod.new(input_method)
- @irb_name = File.basename(input_method)
- @irb_path = input_method
- else
- @io = input_method
- end
- self.save_history = IRB.conf[:SAVE_HISTORY] if IRB.conf[:SAVE_HISTORY]
-
- if output_method
- @output_method = output_method
- else
- @output_method = StdioOutputMethod.new
- end
-
- @echo = IRB.conf[:ECHO]
- if @echo.nil?
- @echo = true
- end
- self.debug_level = IRB.conf[:DEBUG_LEVEL]
- end
-
- # The top-level workspace, see WorkSpace#main
- def main
- @workspace.main
- end
-
- # The toplevel workspace, see #home_workspace
- attr_reader :workspace_home
- # WorkSpace in the current context
- attr_accessor :workspace
- # The current thread in this context
- attr_reader :thread
- # The current input method
- #
- # Can be either StdioInputMethod, ReadlineInputMethod, FileInputMethod or
- # other specified when the context is created. See ::new for more
- # information on +input_method+.
- attr_accessor :io
-
- # Current irb session
- attr_accessor :irb
- # A copy of the default <code>IRB.conf[:AP_NAME]</code>
- attr_accessor :ap_name
- # A copy of the default <code>IRB.conf[:RC]</code>
- attr_accessor :rc
- # A copy of the default <code>IRB.conf[:LOAD_MODULES]</code>
- attr_accessor :load_modules
- # Can be either name from <code>IRB.conf[:IRB_NAME]</code>, or the number of
- # the current job set by JobManager, such as <code>irb#2</code>
- attr_accessor :irb_name
- # Can be either the #irb_name surrounded by parenthesis, or the
- # +input_method+ passed to Context.new
- attr_accessor :irb_path
-
- # Whether +Readline+ is enabled or not.
- #
- # A copy of the default <code>IRB.conf[:USE_READLINE]</code>
- #
- # See #use_readline= for more information.
- attr_reader :use_readline
- # A copy of the default <code>IRB.conf[:INSPECT_MODE]</code>
- attr_reader :inspect_mode
-
- # A copy of the default <code>IRB.conf[:PROMPT_MODE]</code>
- attr_reader :prompt_mode
- # Standard IRB prompt
- #
- # See IRB@Customizing+the+IRB+Prompt for more information.
- attr_accessor :prompt_i
- # IRB prompt for continuated strings
- #
- # See IRB@Customizing+the+IRB+Prompt for more information.
- attr_accessor :prompt_s
- # IRB prompt for continuated statement (e.g. immediately after an +if+)
- #
- # See IRB@Customizing+the+IRB+Prompt for more information.
- attr_accessor :prompt_c
- # See IRB@Customizing+the+IRB+Prompt for more information.
- attr_accessor :prompt_n
- # Can be either the default <code>IRB.conf[:AUTO_INDENT]</code>, or the
- # mode set by #prompt_mode=
- #
- # To enable auto-indentation in irb:
- #
- # IRB.conf[:AUTO_INDENT] = true
- #
- # or
- #
- # irb_context.auto_indent_mode = true
- #
- # or
- #
- # IRB.CurrentContext.auto_indent_mode = true
- #
- # See IRB@Configuration for more information.
- attr_accessor :auto_indent_mode
- # The format of the return statement, set by #prompt_mode= using the
- # +:RETURN+ of the +mode+ passed to set the current #prompt_mode.
- attr_accessor :return_format
-
- # Whether <code>^C</code> (+control-c+) will be ignored or not.
- #
- # If set to +false+, <code>^C</code> will quit irb.
- #
- # If set to +true+,
- #
- # * during input: cancel input then return to top level.
- # * during execute: abandon current execution.
- attr_accessor :ignore_sigint
- # Whether <code>^D</code> (+control-d+) will be ignored or not.
- #
- # If set to +false+, <code>^D</code> will quit irb.
- attr_accessor :ignore_eof
- # Whether to echo the return value to output or not.
- #
- # Uses IRB.conf[:ECHO] if available, or defaults to +true+.
- #
- # puts "hello"
- # # hello
- # #=> nil
- # IRB.CurrentContext.echo = false
- # puts "omg"
- # # omg
- attr_accessor :echo
- # Whether verbose messages are displayed or not.
- #
- # A copy of the default <code>IRB.conf[:VERBOSE]</code>
- attr_accessor :verbose
- # The debug level of irb
- #
- # See #debug_level= for more information.
- attr_reader :debug_level
-
- # The limit of backtrace lines displayed as top +n+ and tail +n+.
- #
- # The default value is 16.
- #
- # Can also be set using the +--back-trace-limit+ command line option.
- #
- # See IRB@Command+line+options for more command line options.
- attr_accessor :back_trace_limit
-
- # Alias for #use_readline
- alias use_readline? use_readline
- # Alias for #rc
- alias rc? rc
- alias ignore_sigint? ignore_sigint
- alias ignore_eof? ignore_eof
- alias echo? echo
-
- # Returns whether messages are displayed or not.
- def verbose?
- if @verbose.nil?
- if defined?(ReadlineInputMethod) && @io.kind_of?(ReadlineInputMethod)
- false
- elsif !STDIN.tty? or @io.kind_of?(FileInputMethod)
- true
- else
- false
- end
- else
- @verbose
- end
- end
-
- # Whether #verbose? is +true+, and +input_method+ is either
- # StdioInputMethod or ReadlineInputMethod, see #io for more information.
- def prompting?
- verbose? || (STDIN.tty? && @io.kind_of?(StdioInputMethod) ||
- (defined?(ReadlineInputMethod) && @io.kind_of?(ReadlineInputMethod)))
- end
-
- # The return value of the last statement evaluated.
- attr_reader :last_value
-
- # Sets the return value from the last statement evaluated in this context
- # to #last_value.
- def set_last_value(value)
- @last_value = value
- @workspace.evaluate self, "_ = IRB.CurrentContext.last_value"
- end
-
- # Sets the +mode+ of the prompt in this context.
- #
- # See IRB@Customizing+the+IRB+Prompt for more information.
- def prompt_mode=(mode)
- @prompt_mode = mode
- pconf = IRB.conf[:PROMPT][mode]
- @prompt_i = pconf[:PROMPT_I]
- @prompt_s = pconf[:PROMPT_S]
- @prompt_c = pconf[:PROMPT_C]
- @prompt_n = pconf[:PROMPT_N]
- @return_format = pconf[:RETURN]
- if ai = pconf.include?(:AUTO_INDENT)
- @auto_indent_mode = ai
- else
- @auto_indent_mode = IRB.conf[:AUTO_INDENT]
- end
- end
-
- # Whether #inspect_mode is set or not, see #inspect_mode= for more detail.
- def inspect?
- @inspect_mode.nil? or @inspect_mode
- end
-
- # Whether #io uses a File for the +input_method+ passed when creating the
- # current context, see ::new
- def file_input?
- @io.class == FileInputMethod
- end
-
- # Specifies the inspect mode with +opt+:
- #
- # +true+:: display +inspect+
- # +false+:: display +to_s+
- # +nil+:: inspect mode in non-math mode,
- # non-inspect mode in math mode
- #
- # See IRB::Inspector for more information.
- #
- # Can also be set using the +--inspect+ and +--noinspect+ command line
- # options.
- #
- # See IRB@Command+line+options for more command line options.
- def inspect_mode=(opt)
-
- if i = Inspector::INSPECTORS[opt]
- @inspect_mode = opt
- @inspect_method = i
- i.init
- else
- case opt
- when nil
- if Inspector.keys_with_inspector(Inspector::INSPECTORS[true]).include?(@inspect_mode)
- self.inspect_mode = false
- elsif Inspector.keys_with_inspector(Inspector::INSPECTORS[false]).include?(@inspect_mode)
- self.inspect_mode = true
- else
- puts "Can't switch inspect mode."
- return
- end
- when /^\s*\{.*\}\s*$/
- begin
- inspector = eval "proc#{opt}"
- rescue Exception
- puts "Can't switch inspect mode(#{opt})."
- return
- end
- self.inspect_mode = inspector
- when Proc
- self.inspect_mode = IRB::Inspector(opt)
- when Inspector
- prefix = "usr%d"
- i = 1
- while Inspector::INSPECTORS[format(prefix, i)]; i += 1; end
- @inspect_mode = format(prefix, i)
- @inspect_method = opt
- Inspector.def_inspector(format(prefix, i), @inspect_method)
- else
- puts "Can't switch inspect mode(#{opt})."
- return
- end
- end
- print "Switch to#{unless @inspect_mode; ' non';end} inspect mode.\n" if verbose?
- @inspect_mode
- end
-
- # Obsolete method.
- #
- # Can be set using the +--noreadline+ and +--readline+ command line
- # options.
- #
- # See IRB@Command+line+options for more command line options.
- def use_readline=(opt)
- print "This method is obsolete."
- print "Do nothing."
- end
-
- # Sets the debug level of irb
- #
- # Can also be set using the +--irb_debug+ command line option.
- #
- # See IRB@Command+line+options for more command line options.
- def debug_level=(value)
- @debug_level = value
- RubyLex.debug_level = value
- end
-
- # Whether or not debug mode is enabled, see #debug_level=.
- def debug?
- @debug_level > 0
- end
-
- def evaluate(line, line_no) # :nodoc:
- @line_no = line_no
- set_last_value(@workspace.evaluate(self, line, irb_path, line_no))
- end
-
- def inspect_last_value # :nodoc:
- @inspect_method.inspect_value(@last_value)
- end
-
- alias __exit__ exit
- # Exits the current session, see IRB.irb_exit
- def exit(ret = 0)
- IRB.irb_exit(@irb, ret)
- end
-
- NOPRINTING_IVARS = ["@last_value"] # :nodoc:
- NO_INSPECTING_IVARS = ["@irb", "@io"] # :nodoc:
- IDNAME_IVARS = ["@prompt_mode"] # :nodoc:
-
- alias __inspect__ inspect
- def inspect # :nodoc:
- array = []
- for ivar in instance_variables.sort{|e1, e2| e1 <=> e2}
- ivar = ivar.to_s
- name = ivar.sub(/^@(.*)$/, '\1')
- val = instance_eval(ivar)
- case ivar
- when *NOPRINTING_IVARS
- array.push format("conf.%s=%s", name, "...")
- when *NO_INSPECTING_IVARS
- array.push format("conf.%s=%s", name, val.to_s)
- when *IDNAME_IVARS
- array.push format("conf.%s=:%s", name, val.id2name)
- else
- array.push format("conf.%s=%s", name, val.inspect)
- end
- end
- array.join("\n")
- end
- alias __to_s__ to_s
- alias to_s inspect
- end
-end