Sha256: 81580f23583723f7a2a337c4d13ebc021057cd825562fb4e474caa7cc641fed9
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Size: 1.19 KB
Versions: 19
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Stored size: 1.19 KB
Contents
extern crate rustc_ast; 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::source_map::FilePathMapping; use rustc_span::FileName; use std::panic; pub fn librustc_expr(input: &str) -> Option<P<ast::Expr>> { match panic::catch_unwind(|| { let sess = ParseSess::new(FilePathMapping::empty()); let e = parse::new_parser_from_source_str( &sess, FileName::Custom("test_precedence".to_string()), input.to_string(), ) .parse_expr(); match e { Ok(expr) => Some(expr), Err(mut 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
19 entries across 19 versions & 1 rubygems