diff options
Diffstat (limited to 'lib/irb/context.rb')
| -rw-r--r-- | lib/irb/context.rb | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/lib/irb/context.rb b/lib/irb/context.rb new file mode 100644 index 0000000000..ffc77de875 --- /dev/null +++ b/lib/irb/context.rb @@ -0,0 +1,289 @@ +# +# irb/context.rb - irb context +# $Release Version: 0.7.3$ +# $Revision$ +# $Date$ +# by Keiju ISHITSUKA(keiju@ishitsuka.com) +# +# -- +# +# +# +module IRB + class Context + # + # Arguments: + # input_method: nil -- stdin or readline + # String -- File + # other -- using this as InputMethod + # + def initialize(irb, workspace = nil, input_method = nil) + @irb = irb + if workspace + @workspace = workspace + else + @workspace = WorkSpace.new unless workspace + end + @thread = Thread.current if defined? Thread + @irb_level = 0 + + # copy of default configuration + @ap_name = IRB.conf[:AP_NAME] + @rc = IRB.conf[:RC] + @load_modules = IRB.conf[:LOAD_MODULES] + + self.math_mode = IRB.conf[:MATH_MODE] + @use_readline = IRB.conf[:USE_READLINE] + @inspect_mode = IRB.conf[:INSPECT_MODE] + self.use_tracer = IRB.conf[:USE_TRACER] +# @use_loader = IRB.conf[:USE_LOADER] + + self.prompt_mode = IRB.conf[:PROMPT_MODE] + + @ignore_sigint = IRB.conf[:IGNORE_SIGINT] + @ignore_eof = IRB.conf[:IGNORE_EOF] + + @back_trace_limit = IRB.conf[:BACK_TRACE_LIMIT] + + debug_level = IRB.conf[:DEBUG_LEVEL] + @verbose = IRB.conf[:VERBOSE] + + @tracer_initialized = false + + if IRB.conf[:SINGLE_IRB] or !defined?(JobManager) + @irb_name = IRB.conf[:IRB_NAME] + else + @irb_name = "irb#"+IRB.JobManager.n_jobs.to_s + end + @irb_path = "(" + @irb_name + ")" + + case input_method + when nil + if (use_readline.nil? && IRB.conf[:PROMPT_MODE] != :INF_RUBY || + use_readline?) + @io = ReadlineInputMethod.new + else + @io = StdioInputMethod.new + end + when String + @io = FileInputMethod.new(input_method) + @irb_name = File.basename(input_method) + @irb_path = input_method + else + @io = input_method + end + end + + def main + @workspace.main + end + + attr_accessor :workspace + attr_reader :thread + attr_accessor :io + + attr_reader :_ + + attr_accessor :irb + attr_accessor :ap_name + attr_accessor :rc + attr_accessor :load_modules + attr_accessor :irb_name + attr_accessor :irb_path + + attr_accessor :math_mode + attr_accessor :use_readline + attr_reader :inspect_mode + attr_reader :use_tracer +# attr :use_loader + + attr_reader :debug_level + attr_accessor :verbose + + attr_reader :prompt_mode + attr_accessor :prompt_i + attr_accessor :prompt_s + attr_accessor :prompt_c + attr_accessor :auto_indent_mode + attr_accessor :return_format + + attr_accessor :ignore_sigint + attr_accessor :ignore_eof + + attr_accessor :back_trace_limit + +# alias use_loader? use_loader + alias use_tracer? use_tracer + alias use_readline? use_readline + alias rc? rc + alias math? math_mode + alias verbose? verbose + alias ignore_sigint? ignore_sigint + alias ignore_eof? ignore_eof + + def _=(value) + @_ = value + @workspace.evaluate "_ = IRB.conf[:MAIN_CONTEXT]._" + end + + def irb_name + if @irb_level == 0 + @irb_name + elsif @irb_name =~ /#[0-9]*$/ + @irb_name + "." + @irb_level.to_s + else + @irb_name + "#0." + @irb_level.to_s + end + end + + 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] + @return_format = pconf[:RETURN] + if ai = pconf.include?(:AUTO_INDENT) + @auto_indent_mode = ai + else + @auto_indent_mode = IRB.conf[:AUTO_INDENT] + end + end + + def inspect? + @inspect_mode.nil? && !@math_mode or @inspect_mode + end + + def file_input? + @io.type == FileInputMethod + end + + def use_tracer=(opt) + if opt + IRB.initialize_tracer + unless @tracer_initialized + Tracer.set_get_line_procs(@irb_path) { + |line_no| + @io.line(line_no) + } + @tracer_initialized = true + end + elsif !opt && @use_tracer + Tracer.off + end + @use_tracer=opt + end + + def use_loader + IRB.conf[:USE_LOADER] + end + + def use_loader=(opt) + IRB.conf[:USE_LOADER] = opt + if opt + IRB.initialize_loader + end + print "Switch to load/require#{unless use_loader; ' non';end} trace mode.\n" if verbose? + opt + end + + def inspect_mode=(opt) + if opt + @inspect_mode = opt + else + @inspect_mode = !@inspect_mode + end + print "Switch to#{unless @inspect_mode; ' non';end} inspect mode.\n" if verbose? + @inspect_mode + end + + def math_mode=(opt) + if @math_mode == true && opt == false + IRB.fail CantRetuenNormalMode + return + end + + @math_mode = opt + if math_mode + IRB.initialize_mathn + main.instance_eval("include Math") + print "start math mode\n" if verbose? + end + end + + def use_readline=(opt) + @use_readline = opt + print "use readline module\n" if @use_readline + end + + def debug_level=(value) + @debug_level = value + RubyLex.debug_level = value + SLex.debug_level = value + end + + def debug? + @debug_level > 0 + end + + def change_binding(*_main) + back = @workspace + @workspace = WorkSpace.new(*_main) + unless _main.empty? + begin + main.extend ExtendCommand + rescue + print "can't change binding to: ", main.inspect, "\n" + @workspace = back + return nil + end + end + @irb_level += 1 + begin + catch(:SU_EXIT) do + @irb.eval_input + end + ensure + @irb_level -= 1 + @workspace = back + end + end + alias change_workspace change_binding + + + alias __exit__ exit + def exit(ret = 0) + if @irb_level == 0 + IRB.irb_exit(@irb, ret) + else + throw :SU_EXIT, ret + end + end + + NOPRINTING_IVARS = ["@_"] + NO_INSPECTING_IVARS = ["@irb", "@io"] + IDNAME_IVARS = ["@prompt_mode"] + + alias __inspect__ inspect + def inspect + array = [] + for ivar in instance_variables.sort{|e1, e2| e1 <=> e2} + name = ivar.sub(/^@(.*)$/){$1} + val = instance_eval(ivar) + case ivar + when *NOPRINTING_IVARS + next + 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 |