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#
# irb/workspace-binding.rb -
# $Release Version: 0.9.6$
# $Revision: 47112 $
# by Keiju ISHITSUKA(keiju@ruby-lang.org)
#
# --
#
#
#
module IRB # :nodoc:
class WorkSpace
# Creates a new workspace.
#
# set self to main if specified, otherwise
# inherit main from TOPLEVEL_BINDING.
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 # binding in function on TOPLEVEL_BINDING(default)
@binding = eval("def irb_binding; private; 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
# The Binding of this workspace
attr_reader :binding
# The top-level workspace of this context, also available as
# <code>IRB.conf[:__MAIN__]</code>
attr_reader :main
# Evaluate the given +statements+ within the context of this workspace.
def evaluate(context, statements, file = __FILE__, line = __LINE__)
eval(statements, @binding, file, line)
end
# error message manipulator
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/
return nil if bt =~ /irb\.rb/
when 3
return nil if bt =~ /irb\/.*\.rb/
return nil if bt =~ /irb\.rb/
bt = bt.sub(/:\s*in `irb_binding'/, '')
end
bt
end
def IRB.delete_caller
end
end
end