main[R]
create new workspace. set self to main if specified, otherwise inherit main from TOPLEVEL_BINDING.
# File irb/workspace.rb, line 16 def initialize(*main) if main[0].kind_of?(Binding) @binding = main.shift elsif IRB.conf[:SINGLE_IRB] @binding = TOPLEVEL_BINDING else case IRB.conf[:CONTEXT_MODE] when 0 # binding in proc on TOPLEVEL_BINDING @binding = eval("proc{binding}.call", TOPLEVEL_BINDING, __FILE__, __LINE__) when 1 # binding in loaded file require "tempfile" f = Tempfile.open("irb-binding") f.print <<EOF $binding = binding EOF f.close load f.path @binding = $binding when 2 # binding in loaded file(thread use) unless defined? BINDING_QUEUE require "thread" IRB.const_set("BINDING_QUEUE", SizedQueue.new(1)) Thread.abort_on_exception = true Thread.start do eval "require \"irb/ws-for-case-2\"", TOPLEVEL_BINDING, __FILE__, __LINE__ end Thread.pass end @binding = BINDING_QUEUE.pop when 3 # binging in function on TOPLEVEL_BINDING(default) @binding = eval("def irb_binding; binding; end; irb_binding", TOPLEVEL_BINDING, __FILE__, __LINE__ - 3) end end if main.empty? @main = eval("self", @binding) else @main = main[0] IRB.conf[:__MAIN__] = @main case @main when Module @binding = eval("IRB.conf[:__MAIN__].module_eval('binding', __FILE__, __LINE__)", @binding, __FILE__, __LINE__) else begin @binding = eval("IRB.conf[:__MAIN__].instance_eval('binding', __FILE__, __LINE__)", @binding, __FILE__, __LINE__) rescue TypeError IRB.fail CantChangeBinding, @main.inspect end end end eval("_=nil", @binding) end
# File irb/ext/tracer.rb, line 45 def evaluate(context, statements, file = nil, line = nil) if context.use_tracer? && file != nil && line != nil Tracer.on begin __evaluate__(context, statements, file, line) ensure Tracer.off end else __evaluate__(context, statements, file || __FILE__, line || __LINE__) end end
error message manipulator
# File irb/workspace.rb, line 85 def filter_backtrace(bt) case IRB.conf[:CONTEXT_MODE] when 0 return nil if bt =~ /\(irb_local_binding\)/ when 1 if(bt =~ %r!/tmp/irb-binding! or bt =~ %r!irb/.*\.rb! or bt =~ /irb\.rb/) return nil end when 2 return nil if bt =~ /irb\/.*\.rb/ when 3 return nil if bt =~ /irb\/.*\.rb/ bt.sub!(/:\s*in `irb_binding'/){""} end bt end