[cfe-dev] AST Representation

[Gaetano Checinski via cfe-dev]

As the AST is not really a Tree as it seems to have circular references,
working with the AST is sometimes a bit messy (eg. cloning).

A while ago Stroustroup pointed me to Gabriel Dos Reis' work on a different
approach to represent C++-AST: https://github.com/GabrielDosReis/ipr
<https://mailtrack.io/trace/link/a5c184fad2cf94fbf0449fa233263072ebc34ea8?url=https%3A%2F%2Fgithub.com%2FGabrielDosReis%2Fipr&signature=9a19f2a0a41d5ceb>

Did anyone try to integrate his work into clang or has an opinion to share ?
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