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| author | Manish Goregaokar <manishsmail@gmail.com> | 2017-05-30 14:23:02 -0700 |
|---|---|---|
| committer | Manish Goregaokar <manishsmail@gmail.com> | 2017-05-31 11:26:19 -0700 |
| commit | 22c4ee365c3b921859e0a325a559b3d41f49c4bb (patch) | |
| tree | 6178f205f1b3147003dacadff2d344aef8b9acff /src/libsyntax/parse | |
| parent | f89d8d184490ecb3cf91f7b6bb7296d649f931ba (diff) | |
| download | rust-22c4ee365c3b921859e0a325a559b3d41f49c4bb.tar.gz rust-22c4ee365c3b921859e0a325a559b3d41f49c4bb.zip | |
Improve error message for const extern fn
Diffstat (limited to 'src/libsyntax/parse')
| -rw-r--r-- | src/libsyntax/parse/parser.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs index 8d7c8c5248b..d0b6a8b9fed 100644 --- a/src/libsyntax/parse/parser.rs +++ b/src/libsyntax/parse/parser.rs @@ -5981,6 +5981,10 @@ impl<'a> Parser<'a> { return Ok(Some(self.parse_item_foreign_fn(visibility, lo, attrs)?)); } + if self.check_keyword(keywords::Const) { + return Err(self.span_fatal(self.span, "extern items cannot be `const`")); + } + // FIXME #5668: this will occur for a macro invocation: match self.parse_macro_use_or_failure(attrs, true, false, lo, visibility)? { Some(item) => { |