Function normalize_module_name

src/ast/dyn_modules.cpp:99–109

Normalize a module-folder basename for case-insensitive shadow comparisons on filesystems that are case-insensitive at the OS layer (Windows, default macOS HFS+/APFS). Without this, a user-supplied -load_module D:/mods/dasimgui (lowercase) would NOT shadow modules/dasImgui because the on-disk basenames are byte-compared. Linux ext4 is case-sensitive, so leave names untouched.

// (lowercase) would NOT shadow modules/dasImgui because the on-disk basenames
// are byte-compared. Linux ext4 is case-sensitive, so leave names untouched.
static das::string normalize_module_name(const das::string &name) {
#if defined(_WIN32) || defined(__APPLE__)
    das::string out = name;
    for (auto &c : out) {
        c = (char)tolower((unsigned char)c);
    }
    return out;
#else
    return name;
#endif
}

// Collect directory names under path/modules/ without loading anything
static das_hash_set<das::string> collect_module_names(const das::string &path) {