(C) John Mair (banisterfiend) 2012
Retrieve the binding of a method's caller in MRI 1.9.2+, MRI 2.0 and RBX (Rubinius)
binding_of_caller gem provides the
binding_of_caller we can grab bindings from higher up the call
stack and evaluate code in that context. Allows access to bindings arbitrarily far up the
call stack, not limited to just the immediate caller.
Recommended for use only in debugging situations. Do not use this in production apps.
Only works in MRI Ruby 1.9.2, 1.9.3, 2.0 and RBX (Rubinius)
Example: Modifying a local inside the caller of a caller
def a var = 10 b puts var end def b c end def c binding.of_caller(2).eval('var = :hello') end a() # OUTPUT # => hello
This project is a spinoff from the Pry REPL project.
Features and limitations
- Only works with MRI 1.9.2, 1.9.3, 2.0 and RBX (Rubinius)
- Does not work in 1.8.7, but there is a well known (continuation-based) hack to get a
Problems or questions contact me at github
(The MIT License)
Copyright (c) 2012 (John Mair)
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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