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# frozen_string_literal: true
#
# push-ws.rb -
# by Keiju ISHITSUKA(keiju@ruby-lang.org)
#
module IRB # :nodoc:
class Context
# Creates a new workspace with the given object or binding, and appends it
# onto the current #workspaces stack.
#
# See IRB::Context#change_workspace and IRB::WorkSpace.new for more
# information.
def push_workspace(*_main)
if _main.empty?
if @workspace_stack.size > 1
# swap the top two workspaces
previous_workspace, current_workspace = @workspace_stack.pop(2)
@workspace_stack.push current_workspace, previous_workspace
end
else
new_workspace = WorkSpace.new(workspace.binding, _main[0])
@workspace_stack.push new_workspace
new_workspace.load_helper_methods_to_main
end
end
# Removes the last element from the current #workspaces stack and returns
# it, or +nil+ if the current workspace stack is empty.
#
# Also, see #push_workspace.
def pop_workspace
@workspace_stack.pop if @workspace_stack.size > 1
end
end
end
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