The question is short and all in the title.
I’ve seen the procedural macro (proc_macro feature) and the compiler plugin (plugin feature) around the web. My question is if there is a real difference between this two feature, because at me seems like one is a slight modified clone of the other.
Other rustaceans say “Compiler plugins are from rust macro 1.0, procedural macro is the equivalent in the structure of macro 2.0”. It is true?