BasicObject
useful when playing with truly enormous objects
Deal with the ^D key being pressed, different behaviour in different cases: 1) In an expression - behave like `!` command (clear input buffer) 2) At top-level session - behave like `exit command (break out of repl loop) 3) In a nested session - behave like `cd ..` (pop a binding)
Will only show the first line of the backtrace
Don't catch these exceptions
The default prompt; includes the target and nesting level
A prompt that includes the full object path as well as input/output (in and out) information. Good for navigation.
may be convenient when working with enormous objects and pretty_print is too slow
A simple prompt - doesn't display target or nesting level
Grab a copy of the TOPLEVEL_BINDING without any local variables. This binding has a default definee of Object, and new methods are private (just as in TOPLEVEL_BINDING).
# File lib/pry/pry_class.rb, line 391 def self.__pry__ binding end
Return a binding object for the receiver.
The `self` of the binding is set to the current object, and it contains no local variables.
The default definee (yugui.jp/articles/846) is set such that:
If `self` is a class or module, then new methods created in the binding will be defined in that class or module (as in `class Foo; end`).
If `self` is a normal object, then new methods created in the binding will be defined on its singleton class (as in `class << self; end`).
If `self` doesn't have a real singleton class (i.e. it is a Fixnum, Float, Symbol, nil, true, or false), then new methods will be created on the object's class (as in `self.class.class_eval{ }`)
Newly created constants, including classes and modules, will also be added to the default definee.
@return [Binding]
# File lib/pry/core_extensions.rb, line 47 def __binding__ # When you're cd'd into a class, methods you define should be added to it. if is_a?(Module) # class_eval sets both self and the default definee to this class. return class_eval "binding" end unless respond_to?(:__pry__) binding_impl_method = [ # Get a binding with 'self' set to self, and no locals. # # The default definee is determined by the context in which the # definition is eval'd. # # Please don't call this method directly, see {__binding__}. # # @return [Binding] def __pry__ binding end, __FILE__, __LINE__ + 1] # The easiest way to check whether an object has a working singleton class # is to try and define a method on it. (just checking for the presence of # the singleton class gives false positives for `true` and `false`). # __pry__ is just the closest method we have to hand, and using # it has the nice property that we can memoize this check. begin # instance_eval sets the default definee to the object's singleton class instance_eval(*binding_impl_method) # If we can't define methods on the Object's singleton_class. Then we fall # back to setting the default definee to be the Object's class. That seems # nicer than having a REPL in which you can't define methods. rescue TypeError # class_eval sets the default definee to self.class self.class.class_eval(*binding_impl_method) end end __pry__ end
Start a Pry REPL on self.
If `self` is a Binding then that will be used to evaluate expressions; otherwise a new binding will be created.
@param [Object] object the object or binding to pry
(__deprecated__, use `object.pry`)
@param [Hash] hash the options hash @example With a binding
binding.pry
@example On any object
"dummy".pry
@example With options
def my_method binding.pry :quiet => true end my_method()
@see Pry.start
# File lib/pry/core_extensions.rb, line 20 def pry(object=nil, hash={}) if object.nil? || Hash === object Pry.start(self, object || {}) else Pry.start(object, hash) end end
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