Define constructor for LoadedCrate struct in gccrs

gccrs adds a constructor for `LoadedCrate` to fix C++20 aggregate initialization issues.

By Yap Zhi Heng July 15, 2026 committed

A C++20 compatibility issue with aggregate initialization for the LoadedCrate struct in gccrs has been resolved by adding an explicit constructor. This ensures that LoadedCrate can be properly initialized in C++20 environments, maintaining the compiler’s stability.

In Details

An explicit constructor is added to the Session::LoadedCrate struct within rust-session-manager.h to address problems encountered with aggregate initialization under C++20 standards. This change ensures that the LoadedCrate structure can be correctly instantiated in the C++ compilation environment used by gccrs.

For Context

gccrs: The GCC backend for the Rust programming language, enabling Rust code to be compiled by GCC.
LoadedCrate: An internal gccrs data structure representing a Rust crate that has been loaded and processed by the compiler session.
aggregate initialization: A C++ feature for initializing objects of aggregate types (like structs and arrays) using braces {}. C++20 introduced changes that affected how this works for certain types.
C++20: The 2020 edition of the C++ programming language standard, introducing new features and modifying existing ones.

Filed Under: rustcompilerc++compatibility

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