C++ Insights: See Your Code Through the Compiler's Eyes
C++ Insights – See your source code with the eyes of a Compiler
C++ Insights is a Clang-based tool that performs source-to-source transformation to reveal what the compiler does behind the scenes—implicit casts, compiler-generated special member functions, and transformations of lambdas, range-based for-loops, and structured bindings. Created by Andreas Fertig in 2017 while exploring C++11/14/17 features, it aims to produce compilable code and help developers and students understand C++ semantics. Available online at cppinsights.io and via plugins for Vim, Neovim, VS Code, and Homebrew.
The goal of C++ Insights is to make things visible that normally and intentionally happen behind the scenes. It's about the magic the compiler does for us to make things work.
- alankarmisra
Ooo I love these things. I wrote a C++ -> Clang -> JS transpiler so I could show value change states on top of the C++ source code in html and allow people to step through the whole state change. They can also vary the input and see the values change cause the JS layer could recompute the values - which is why I bothered with the transpiling - otherwise I could have just output the state changes and parsed them as CSV for the steps. Fun project!
- StilesCrisis
I wish the readme example showed a lambda capture. Now that's where compiler magic REALLY shows up.
- rramadass
The tool can be found at - https://cppinsights.io/