GNU Emacs Lisp Reference Manual
While within Edebug, you can evaluate expressions ``as if'' Edebug were not running. Edebug tries to be invisible to the expression's evaluation and printing. Evaluation of expressions that cause side effects will work as expected except for things that Edebug explicitly saves and restores. See The Outside Context, for details on this process.
RETedebug-eval-expression). That is, Edebug tries to minimize its interference with the evaluation.RETedebug-eval-last-sexp).Edebug supports evaluation of expressions containing references to lexically bound symbols created by the following constructs in `cl.el' (version 2.03 or later): lexical-let, macrolet, and symbol-macrolet.