Sha256: c173bd515ba1d53b3b676161849fa8df0ae3d5592445843cee65b6628b71ac32
Contents?: true
Size: 1.27 KB
Versions: 8
Compression:
Stored size: 1.27 KB
Contents
extern crate rustc_ast; extern crate rustc_driver; extern crate rustc_expand; extern crate rustc_parse as parse; extern crate rustc_session; extern crate rustc_span; use rustc_ast::ast; use rustc_ast::ptr::P; use rustc_session::parse::ParseSess; use rustc_span::FileName; use std::panic; pub fn librustc_expr(input: &str) -> Option<P<ast::Expr>> { match panic::catch_unwind(|| { let locale_resources = rustc_driver::DEFAULT_LOCALE_RESOURCES.to_vec(); let sess = ParseSess::new(locale_resources); let name = FileName::Custom("test_precedence".to_string()); let mut parser = parse::new_parser_from_source_str(&sess, name, input.to_string()).unwrap(); let presult = parser.parse_expr(); match presult { Ok(expr) => Some(expr), Err(diagnostic) => { diagnostic.emit(); None } } }) { Ok(Some(e)) => Some(e), Ok(None) => None, Err(_) => { errorf!("librustc panicked\n"); None } } } pub fn syn_expr(input: &str) -> Option<syn::Expr> { match syn::parse_str(input) { Ok(e) => Some(e), Err(msg) => { errorf!("syn failed to parse\n{:?}\n", msg); None } } }
Version data entries
8 entries across 8 versions & 1 rubygems