Hi, Julian expert people. What is the easiest way to debug a modification to the source code in julia/base if I change the Julia code in base/string/? Specifically, I would like to know how to easily debugging way the modifications if I change the source code written in Julia code in base/string/. …

[image] mitsuruk: I want to avoid a rebuild if possible. Use Revise for Base. Home · Revise.jl Documentation for Revise.jl.

Dear Tamas_Papp, Thank you very much for you reply. Revise.jl is looks good for debagging. I will try to understand and enjoy modification. Thanks a lot.

Dear Tamas_Papp, It worked perfectly. pkg> add Revise using Revise Copy target source code from GitHub to my working folder. modify includet(target.jl) set break point. debug run from test.jl for call. The debugger worked perfectly. According to the documents, ‘includet(’ is quick-and-dirty dev…

Personally, I find it easier to reason about changes entirely at the REPL. Just @eval Base begin ... end is a great way to interactively override small things and it makes the history much more tractable.

Dear mbauman, Thank you for your advice. I tried method of @eval. I feel that This is a very easy way to make a prototype module for enhancement. I will try to understand and utilize it more. Thanks a lot.

Just for completeness, what I usually do is just Revise.track(Base), which automatically detects and applies all changes you made to Base and also lets you make changes during a running Julia session.

[image] simeonschaub: Revise.track(Base) Great. I tried this way. This is very powerful modify and trace technic. thanks a lot.

One thing to be aware of when modifying Base is that not everything that works when modifying it after you have a fully working Julia will actually work when building Julia. That is because Julia is built incrementally in itself, ie bootstrapped , and not all functionality that will eventually be ava…

Dear Stefankarpinsk, Thank you for your kind advice. I’m interested in the inner workings of Julia. It’s much more fun than just reading the source code. When I create a module in the future that could contribute to the community in some way, I’ll do a number of thorough tests. Thanks a lot.

Can you present a specific exampl ? I cannot get how to implement it in details.

An easy way to debug the julia code in base/

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An easy way to debug the julia code in base/

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