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| author | Manish Goregaokar <manishsmail@gmail.com> | 2015-01-11 20:53:24 +0530 |
|---|---|---|
| committer | Manish Goregaokar <manishsmail@gmail.com> | 2015-01-12 00:00:53 +0530 |
| commit | ad7e33efee023822bd63fa6f942c25582ef12a1e (patch) | |
| tree | 0358035fd7630bfb4c7369b4ae9bb5c42fadcde9 /src/libsyntax | |
| parent | dd074ab4eedcb08ca8a1861fc1e62f125e23fa8b (diff) | |
| download | rust-ad7e33efee023822bd63fa6f942c25582ef12a1e.tar.gz rust-ad7e33efee023822bd63fa6f942c25582ef12a1e.zip | |
Feature gate #[rustc_on_unimplemented]
Diffstat (limited to 'src/libsyntax')
| -rw-r--r-- | src/libsyntax/feature_gate.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs index 8175c0a9eec..8929bbe0232 100644 --- a/src/libsyntax/feature_gate.rs +++ b/src/libsyntax/feature_gate.rs @@ -71,6 +71,7 @@ static KNOWN_FEATURES: &'static [(&'static str, Status)] = &[ ("visible_private_types", Active), ("slicing_syntax", Active), ("box_syntax", Active), + ("on_unimplemented", Active), ("if_let", Accepted), ("while_let", Accepted), @@ -249,6 +250,10 @@ impl<'a, 'v> Visitor<'v> for PostExpansionVisitor<'a> { self.gate_feature("linkage", i.span, "the `linkage` attribute is experimental \ and not portable across platforms") + } else if attr.name() == "rustc_on_unimplemented" { + self.gate_feature("on_unimplemented", i.span, + "the `#[rustc_on_unimplemented]` attribute \ + is an experimental feature") } } match i.node { |