Crate proc_macro_utils

Some useful functions on proc_macro and proc_macro2 types

E.g. pushing tokens onto TokenStream and testing for specific punctuation on TokenTree and Punct

It also adds the assert_tokens! and assert_expansion! macros to improve unit testability for proc-macros.

Macros

assert_expansionparser

Allows simple unit testing of proc macro implementations.

assert_tokensparser

Asserts that the lhs matches the tokens wrapped in braces on the rhs.

Structs

TokenParserparser

Wrapper for TokenStream::into_iter allowing not only to iterate on tokens but also to parse simple structures like types or expressions, though it does not make any claims about their correctness.

Traits

Delimited

Trait to test for delimiters of groups

TokenStream2Extproc-macro2

Generic extensions for proc_macro2::TokenStream

TokenStreamExtproc-macro

Generic extensions for proc_macro::TokenStream

TokenTree2Extproc-macro2

Generic extensions for proc_macro2::TokenTree

TokenTreeExtproc-macro

Generic extensions for proc_macro::TokenTree

TokenTreeLiteral

Trait to parse literals

TokenTreePunct

Trait to test for punctuation