On 3/12/14 12:33 PM, Daniel Micay wrote:
Rust is already a large language, and the interactions between many of the features are subtle or poorly defined.
Citation? Like what?
There's a complexity cost for every feature that's added. It gets harder for a single programmer to learn the language and makes it less feasible for even an experienced Rust programmer to grasp it all. The compiler will have more bugs, so the safety guarantee won't be as strong. Variadic generics, optional/keyword parameters, higher-kinded types, single inheritance, refinement types, dynamically sized types, compile-time function evaluation, generic literals and more are all proposed as useful features. I think there's the potential for Rust to be a more complex language than C++, if it's not already.
Rust is not a more complex language than C++. That's hyperbolic. Today we don't have single inheritance, templates without concepts, the preprocessor, the implicit numeric coercions, implicit pointer coercions, overloadable coercions, argument-dependent lookup, non-type template parameters, volatile, constexpr, rvalue references, constructors (including `explicit`), runtime type information, allocators, capture clauses, copy constructors, many overloaded operators (e.g. assignment), `->` syntax, the lexer hack, multiple inheritance, pointer-to-member-functions, the subtle rules around "const", "protected", "goto", the SFINAE rule, the implicit `this` pointer and the `enable_shared_from_this` that you need, `const` member functions, the `mutable` keyword, the ternary operator, `nullptr`, default arguments, friends, exceptions, variable-length arrays, preincrement/postincrement operators, the `sizeof` keyword, custom braced initializer syntax, the C-style `for` syntax, constructor initializer lists, `static` variables, and unnamed namespaces. Just to name a few.
Without single inheritance, how do you solve the problems outlined in this thread?
Patrick _______________________________________________ Rust-dev mailing list Rust-dev@mozilla.org https://mail.mozilla.org/listinfo/rust-dev
