bjoernager/rust
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Adjusted diagnostic output so that if there is no use in a item sequence,

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then we just suggest the first legal position where you could inject a use.

To do this, I added `inject_use_span` field to `ModSpans`, and populate it in
parser (it is the span of the first token found after inner attributes, if any).
Then I rewrote the use-suggestion code to utilize it, and threw out some stuff
that is now unnecessary with this in place. (I think the result is easier to
understand.)

Then I added a test of issue 87613.
This commit is contained in:
Felix S. Klock II 2022-01-20 14:07:54 -05:00
parent b82795244e
commit d37da1e332
13 changed files with 172 additions and 70 deletions
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5
compiler/rustc_ast/src/ast.rs
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@ -2322,16 +2322,17 @@ pub enum ModKind {
Unloaded,
}
#[derive(Clone, Encodable, Decodable, Debug)]
#[derive(Copy, Clone, Encodable, Decodable, Debug)]
pub struct ModSpans {
/// `inner_span` covers the body of the module; for a file module, its the whole file.
/// For an inline module, its the span inside the `{ ... }`, not including the curly braces.
pub inner_span: Span,
pub inject_use_span: Span,
}
impl Default for ModSpans {
fn default() -> ModSpans {
ModSpans { inner_span: Default::default() }
ModSpans { inner_span: Default::default(), inject_use_span: Default::default() }
}
}