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extern crate syn;
#[macro_use]
extern crate quote;
extern crate proc_macro;
mod helpers;
mod to_string;
mod from_string;
mod enum_iter;
mod enum_messages;
mod enum_properties;
use proc_macro::TokenStream;
use std::env;
fn debug_print_generated(ast: &syn::DeriveInput, toks: "e::Tokens) {
let ident = ast.ident.as_ref();
let debug = env::var("STRUM_DEBUG");
if let Ok(s) = debug {
if s == "1" {
println!("{}", toks);
}
if s == ident {
println!("{}", toks);
}
}
}
#[proc_macro_derive(EnumString,attributes(strum))]
pub fn from_string(input: TokenStream) -> TokenStream {
let s = input.to_string();
let ast = syn::parse_derive_input(&s).unwrap();
let toks = from_string::from_string_inner(&ast);
debug_print_generated(&ast, &toks);
toks.parse().unwrap()
}
#[proc_macro_derive(ToString,attributes(strum))]
pub fn to_string(input: TokenStream) -> TokenStream {
let s = input.to_string();
let ast = syn::parse_derive_input(&s).unwrap();
let toks = to_string::to_string_inner(&ast);
debug_print_generated(&ast, &toks);
toks.parse().unwrap()
}
#[proc_macro_derive(EnumIter,attributes(strum))]
pub fn enum_iter(input: TokenStream) -> TokenStream {
let s = input.to_string();
let ast = syn::parse_derive_input(&s).unwrap();
let toks = enum_iter::enum_iter_inner(&ast);
debug_print_generated(&ast, &toks);
toks.parse().unwrap()
}
#[proc_macro_derive(EnumMessage,attributes(strum))]
pub fn enum_messages(input: TokenStream) -> TokenStream {
let s = input.to_string();
let ast = syn::parse_derive_input(&s).unwrap();
let toks = enum_messages::enum_message_inner(&ast);
debug_print_generated(&ast, &toks);
toks.parse().unwrap()
}
#[proc_macro_derive(EnumProperty,attributes(strum))]
pub fn enum_properties(input: TokenStream) -> TokenStream {
let s = input.to_string();
let ast = syn::parse_derive_input(&s).unwrap();
let toks = enum_properties::enum_properties_inner(&ast);
debug_print_generated(&ast, &toks);
toks.parse().unwrap()
}