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split macro parser into its own crate and improve error handling / reporting

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This commit is contained in:
Jorge Aparicio 2017-07-14 18:54:54 -05:00
parent 59afbf02aa
commit 98596554b3
10 changed files with 511 additions and 961 deletions
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38
macros/src/lib.rs
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@ -1,26 +1,44 @@
#![deny(warnings)]
#![feature(proc_macro)]
#![recursion_limit = "128"]
#[macro_use]
extern crate error_chain;
extern crate proc_macro;
#[macro_use]
extern crate quote;
extern crate rtfm_syntax;
extern crate syn;
mod check;
mod syntax;
mod trans;
mod util;
use proc_macro::TokenStream;
use rtfm_syntax::App;
use error::*;
mod analyze;
mod check;
mod error;
mod trans;
#[proc_macro]
pub fn rtfm(ts: TokenStream) -> TokenStream {
match run(ts) {
Err(e) => panic!("{}", error_chain::ChainedError::display(&e)),
Ok(ts) => ts,
}
}
fn run(ts: TokenStream) -> Result<TokenStream> {
let input = format!("{}", ts);
let app = syntax::parse::app(&input);
let ceilings = util::compute_ceilings(&app);
check::resources(&app.resources, &ceilings);
let app = check::app(App::parse(&input)
.chain_err(|| "parsing the `rtfm!` macro")?).chain_err(
|| "checking the application specification",
)?;
format!("{}", trans::app(&app, &ceilings)).parse().unwrap()
let ownerships = analyze::app(&app);
let tokens = trans::app(&app, &ownerships);
Ok(format!("{}", tokens)
.parse()
.map_err(|_| "BUG: error parsing the generated code")?)
}