gerrit-public.fairphone.software / platform / external / rust / crates / syn / 15085c417ec803cd0987f2ef3c3e7f58a7393023
| commit | 15085c417ec803cd0987f2ef3c3e7f58a7393023 | [log] [tgz] |
|---|---|---|
| author | Sean Griffin <sean@seantheprogrammer.com> | Mon Oct 03 11:40:31 2016 -0400 |
| committer | David Tolnay <dtolnay@gmail.com> | Mon Oct 03 09:13:06 2016 -0700 |
| tree | 62ce84036d761d7b73fc07bee20cde2561ade9ce | |
| parent | 176d8a972b7f7c684245c9bd94339b8c80e7a2c1 [diff] |
Add `VariantData#fields_mut` This adds the mutable equivalent to `VariantData#fields`, and can make code which needs to mutate those fields a bit less verbose.
1 file changed
tree: 62ce84036d761d7b73fc07bee20cde2561ade9ce
README.md
Nom parser for Rust items
Parse Rust structs and enums without a Syntex dependency, intended for use with Macros 1.1.
Designed for fast compile time.
- Compile time for
syn(from scratch including all dependencies): 4 seconds - Compile time for the
syntex/quasi/asterstack: 60+ seconds
Usage with Macros 1.1
[dependencies] syn = "0.8" quote = "0.2" [lib] rustc-macro = true
#![feature(rustc_macro, rustc_macro_lib)] extern crate rustc_macro; use rustc_macro::TokenStream; extern crate syn; #[macro_use] extern crate quote; #[rustc_macro_derive(MyMacro)] pub fn my_macro(input: TokenStream) -> TokenStream { let source = input.to_string(); // Parse a string of items to an AST let ast = syn::parse_macro_input(&source).unwrap(); // Build the output, possibly using quasi-quotation let expanded = quote! { // ... }; // Parse this back to a token stream and return it expanded.to_string().parse().unwrap() }
License
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.