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improve span of erroneous empty macro invocation

The ideas is to use the span of the complete macro invocation if the span of a
macro error is `DUMMY_SP`.

fixes #7970
This commit is contained in:
Tim Neumann 2015-08-07 16:36:56 +02:00
parent 11deb083f5
commit c115c51363
4 changed files with 55 additions and 22 deletions

View file

@ -249,22 +249,6 @@ pub enum ParseResult<T> {
pub type NamedParseResult = ParseResult<HashMap<Ident, Rc<NamedMatch>>>;
pub type PositionalParseResult = ParseResult<Vec<Rc<NamedMatch>>>;
pub fn parse_or_else(sess: &ParseSess,
cfg: ast::CrateConfig,
rdr: TtReader,
ms: Vec<TokenTree> )
-> HashMap<Ident, Rc<NamedMatch>> {
match parse(sess, cfg, rdr, &ms[..]) {
Success(m) => m,
Failure(sp, str) => {
panic!(sess.span_diagnostic.span_fatal(sp, &str[..]))
}
Error(sp, str) => {
panic!(sess.span_diagnostic.span_fatal(sp, &str[..]))
}
}
}
/// Perform a token equality check, ignoring syntax context (that is, an
/// unhygienic comparison)
pub fn token_name_eq(t1 : &Token, t2 : &Token) -> bool {