Module object_emitter_write_pair 

Source: Analysis/include/Luau/JsonEmitter.h (lines 155-167, hand-ported)

C++ template:

template<typename T>
void writePair(std::string_view name, T value)
{
    if (finished) return;
    emitter->writeComma();
    write(*emitter, name);
    emitter->writeRaw(':');
    write(*emitter, value);
}

C++ resolves the two write(*emitter, ...) calls by overload resolution over the write(JsonEmitter&, T) family. Rust expresses that overload set as the WriteJson trait defined here: every value that can be a JSON value impls it by delegating to the corresponding write_json_emitter_* free function (the ported C++ write overloads). The concrete impl WriteJson for <T> blocks are colocated with the function that ports the matching overload:

• scalars / strings / pointers -> this file
• Vec<T> -> functions/write_json_emitter.rs
• Option<T> -> functions/write_json_emitter_alt_b.rs
• unordered_map<String, T> / hash maps -> functions/write_json_emitter_alt_c.rs

Traits

WriteJson

Rust shape of the overloaded void write(JsonEmitter&, T) family. A type implements this iff there is a write(JsonEmitter&, T) overload for it in C++. The single method writes the JSON encoding of self into emitter.