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| author | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2015-11-09 22:16:30 +0300 |
|---|---|---|
| committer | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2015-11-09 22:16:30 +0300 |
| commit | 2a01e263bcb2d826f2a398b4c34b59485a201274 (patch) | |
| tree | 22d7fff8c712ccaab5d3d9b0891bc9fc01f79916 | |
| parent | e6b14aab05621ac6c06ca6894b2dac26a4ba690c (diff) | |
| download | rust-2a01e263bcb2d826f2a398b4c34b59485a201274.tar.gz rust-2a01e263bcb2d826f2a398b4c34b59485a201274.zip | |
Improve error message
| -rw-r--r-- | src/libsyntax/feature_gate.rs | 2 | ||||
| -rw-r--r-- | src/test/compile-fail/issue-12560-1.rs | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs index a0c089aff21..94b5cf46dd1 100644 --- a/src/libsyntax/feature_gate.rs +++ b/src/libsyntax/feature_gate.rs @@ -867,6 +867,8 @@ impl<'a, 'v> Visitor<'v> for PostExpansionVisitor<'a> { self.context.span_handler.span_err(span, "empty tuple structs and enum variants \ are not allowed, use unit structs and \ enum variants instead"); + self.context.span_handler.span_help(span, "remove trailing () to make a unit \ + struct or unit enum varian"); } } visit::walk_struct_def(self, s) diff --git a/src/test/compile-fail/issue-12560-1.rs b/src/test/compile-fail/issue-12560-1.rs index de13cb465db..d0fb91a576c 100644 --- a/src/test/compile-fail/issue-12560-1.rs +++ b/src/test/compile-fail/issue-12560-1.rs @@ -14,7 +14,9 @@ enum Foo { Bar(), //~ ERROR empty tuple structs and enum variants are not allowed + //~^ HELP remove trailing () to make a unit struct or unit enum varian Baz(), //~ ERROR empty tuple structs and enum variants are not allowed + //~^ HELP remove trailing () to make a unit struct or unit enum varian Bazar } |