cognitive psychology. PhD 
A debugger is not a debugger, it is an interactive program executor. The sooner we internalize this, the sooner we can talk about what should really be considered a “debugger.”
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A person debugging a program is a debugger. They use many tools to understand program behavior, such as an interactive program executor or program state displayer (printf). Which raises the question — how useful is interactive execution to understanding behavior?
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Or differently: what other kinds of tools help debug / understand programs? Whyline showed that another framing is *automatic reduction of context*. Tools that can interactively eliminate regions of code unrelated to the bug. (Good idea, let’s do more of that!)
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There has been a lot of research on program slicing, but the ideas are quite under utilized in practice.
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Have a look at
@Debugging_Book for a collection of automated debugging techniques:https://www.debuggingbook.orgThanks. Twitter will use this to make your timeline better. UndoUndo
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Coverage, performance, various kinds of inspectors.
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