let (already_has_main, already_has_extern_crate) = crate::syntax::with_globals(|| {
use crate::syntax::{ast, parse::{self, ParseSess}, source_map::FilePathMapping};
use crate::syntax_pos::FileName;
+ use errors::emitter::EmitterWriter;
+ use errors::Handler;
let filename = FileName::Anon;
let source = crates + &everything_else;
- let sess = ParseSess::new(FilePathMapping::empty());
+
+ // any errors in parsing should also appear when the doctest is compiled for real, so just
+ // send all the errors that libsyntax emits directly into a Sink instead of stderr
+ let cm = Lrc::new(SourceMap::new(FilePathMapping::empty()));
+ let emitter = EmitterWriter::new(box io::sink(), None, false, false);
+ let handler = Handler::with_emitter(false, false, box emitter);
+ let sess = ParseSess::with_span_handler(handler, cm);
debug!("about to parse: \n{}", source);
+ // FIXME(misdreavus): this can still emit a FatalError (and thus halt rustdoc prematurely)
+ // if there is a lexing error in the first token
let mut parser = parse::new_parser_from_source_str(&sess, filename, source);
let mut found_main = false;