I still find myself most comfortable with D's compile-time function evaluation (CTFE) and mixins. In D, one use of mixins is more or less an eval function: take

I still find myself most comfortable with D's compile-time function evaluation (CTFE) and mixins. In D, one use of mixins is more or less an eval function: take any string and evaluate it as code at the invocation site. http://dlang.org/mixin.html http://dlang.org/mixin.html It's nice that you need very little new syntax to do compile-time tricks in D. The same syntax that works at runtime also works at compile time. If mixins worked with the AST instead of strings, it would be almost the same as Lisp macros. I'm also kind of happy to see that D seems to have inspired Rust macros a little.