1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
use rustc_data_structures::fingerprint::Fingerprint;
use rustc_macros::HashStable_Generic;
use rustc_span::Span;
use crate::{AttrPath, HirId, Target};
#[derive(Debug)]
pub struct DelayedLints {
pub lints: Box<[DelayedLint]>,
// Only present when the crate hash is needed.
pub opt_hash: Option<Fingerprint>,
}
/// During ast lowering, no lints can be emitted.
/// That is because lints attach to nodes either in the AST, or on the built HIR.
/// When attached to AST nodes, they're emitted just before building HIR,
/// and then there's a gap where no lints can be emitted until HIR is done.
/// The variants in this enum represent lints that are temporarily stashed during
/// AST lowering to be emitted once HIR is built.
#[derive(Clone, Debug, HashStable_Generic)]
pub enum DelayedLint {
AttributeParsing(AttributeLint<HirId>),
}
#[derive(Clone, Debug, HashStable_Generic)]
pub struct AttributeLint<Id> {
pub id: Id,
pub span: Span,
pub kind: AttributeLintKind,
}
#[derive(Clone, Debug, HashStable_Generic)]
pub enum AttributeLintKind {
UnusedDuplicate { this: Span, other: Span, warning: bool },
IllFormedAttributeInput { suggestions: Vec<String> },
EmptyAttribute { first_span: Span },
InvalidTarget { name: AttrPath, target: Target, applied: Vec<String>, only: &'static str },
InvalidStyle { name: AttrPath, is_used_as_inner: bool, target: Target, target_span: Span },
}
|
