(C) John Mair (banisterfiend) 2011
Retrieve the binding of a method's caller in MRI 1.9.2+
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 and 1.9.3
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 and 1.9.3
- 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) 2011 (John Mair)
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