Yes however this is only available as a nightly-only experimental API which may be removed. You can pass arbitrary identifier into a macro and yes, you can concatenate identifiers into a new identifier using concat_idents!() macro: #![feature(concat_idents)] macro_rules! test { ($x:ident) => ({ let z = concat_idents!(hello_, $x); z(); }) } fn hello_world() { } … Read more
It is possible to capture doc comments in macro invocations. It is not widely-known, but Rust documentation is actually represented as a special kind of attribute on an item. For example: /// Some documentation comment pub fn function() {} // is equivalent to #[doc=”Some documentation comment”] pub fn function() {} And it is possible to … Read more
If you are using Rust >= 1.31.0 I would recommend using my paste crate which provides a stable way to create concatenated identifiers in a macro. macro_rules! make_a_struct_and_getters { ($name:ident { $($field:ident),* }) => { // Define the struct. This expands to: // // pub struct S { // a: String, // b: String, // … Read more