850faea030
We don't want to have questions in the diagnostic output. Instead, we use wording that communicates uncertainty, like "might": ``` error[E0432]: unresolved import `spam` --> $DIR/import-from-missing-star-3.rs:2:9 | LL | use spam::*; | ^^^^ you might be missing crate `spam` | = help: consider adding `extern crate spam` to use the `spam` crate ```
840 lines
19 KiB
Rust
840 lines
19 KiB
Rust
//@ check-fail
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// Tests error conditions for specifying subdiagnostics using #[derive(Subdiagnostic)]
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// The proc_macro2 crate handles spans differently when on beta/stable release rather than nightly,
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// changing the output of this test. Since Subdiagnostic is strictly internal to the compiler
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// the test is just ignored on stable and beta:
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//@ ignore-stage1
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//@ ignore-beta
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//@ ignore-stable
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#![feature(rustc_private)]
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#![crate_type = "lib"]
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extern crate rustc_errors;
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extern crate rustc_fluent_macro;
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extern crate rustc_macros;
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extern crate rustc_session;
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extern crate rustc_span;
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use rustc_errors::{Applicability, DiagMessage, SubdiagMessage};
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use rustc_macros::Subdiagnostic;
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use rustc_span::Span;
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rustc_fluent_macro::fluent_messages! { "./example.ftl" }
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#[derive(Subdiagnostic)]
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#[label(no_crate_example)]
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struct A {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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enum B {
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#[label(no_crate_example)]
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A {
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#[primary_span]
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span: Span,
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var: String,
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},
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#[label(no_crate_example)]
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B {
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#[primary_span]
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span: Span,
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var: String,
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},
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example)]
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//~^ ERROR label without `#[primary_span]` field
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struct C {
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[label]
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//~^ ERROR diagnostic slug must be first argument
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struct D {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[foo]
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//~^ ERROR `#[foo]` is not a valid attribute
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//~^^ ERROR cannot find attribute `foo` in this scope
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struct E {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[label = "..."]
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//~^ ERROR `#[label = ...]` is not a valid attribute
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struct F {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[label(bug = "...")]
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//~^ ERROR only `no_span` is a valid nested attribute
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//~| ERROR diagnostic slug must be first argument
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struct G {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[label("...")]
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//~^ ERROR failed to resolve: you might be missing crate `core`
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//~| NOTE you might be missing crate `core`
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struct H {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[label(slug = 4)]
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//~^ ERROR only `no_span` is a valid nested attribute
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//~| ERROR diagnostic slug must be first argument
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struct J {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[label(slug("..."))]
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//~^ ERROR only `no_span` is a valid nested attribute
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//~| ERROR diagnostic slug must be first argument
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struct K {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[label(slug)]
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//~^ ERROR cannot find value `slug` in module `crate::fluent_generated`
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//~^^ NOTE not found in `crate::fluent_generated`
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struct L {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[label()]
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//~^ ERROR diagnostic slug must be first argument of a `#[label(...)]` attribute
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struct M {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example, code = "...")]
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//~^ ERROR only `no_span` is a valid nested attribute
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struct N {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example, applicability = "machine-applicable")]
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//~^ ERROR only `no_span` is a valid nested attribute
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struct O {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[foo]
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//~^ ERROR cannot find attribute `foo` in this scope
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//~^^ ERROR unsupported type attribute for subdiagnostic enum
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enum P {
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#[label(no_crate_example)]
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A {
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#[primary_span]
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span: Span,
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var: String,
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},
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}
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#[derive(Subdiagnostic)]
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enum Q {
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#[bar]
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//~^ ERROR `#[bar]` is not a valid attribute
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//~^^ ERROR cannot find attribute `bar` in this scope
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A {
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#[primary_span]
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span: Span,
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var: String,
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},
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}
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#[derive(Subdiagnostic)]
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enum R {
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#[bar = "..."]
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//~^ ERROR `#[bar = ...]` is not a valid attribute
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//~^^ ERROR cannot find attribute `bar` in this scope
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A {
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#[primary_span]
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span: Span,
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var: String,
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},
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}
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#[derive(Subdiagnostic)]
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enum S {
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#[bar = 4]
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//~^ ERROR `#[bar = ...]` is not a valid attribute
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//~^^ ERROR cannot find attribute `bar` in this scope
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A {
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#[primary_span]
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span: Span,
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var: String,
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},
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}
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#[derive(Subdiagnostic)]
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enum T {
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#[bar("...")]
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//~^ ERROR `#[bar(...)]` is not a valid attribute
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//~^^ ERROR cannot find attribute `bar` in this scope
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A {
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#[primary_span]
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span: Span,
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var: String,
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},
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}
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#[derive(Subdiagnostic)]
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enum U {
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#[label(code = "...")]
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//~^ ERROR diagnostic slug must be first argument of a `#[label(...)]` attribute
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//~| ERROR only `no_span` is a valid nested attribute
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A {
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#[primary_span]
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span: Span,
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var: String,
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},
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}
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#[derive(Subdiagnostic)]
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enum V {
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#[label(no_crate_example)]
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A {
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#[primary_span]
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span: Span,
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var: String,
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},
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B {
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#[primary_span]
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span: Span,
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var: String,
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},
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example)]
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//~^ ERROR label without `#[primary_span]` field
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struct W {
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#[primary_span]
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//~^ ERROR the `#[primary_span]` attribute can only be applied to fields of type `Span` or `MultiSpan`
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span: String,
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example)]
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struct X {
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#[primary_span]
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span: Span,
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#[applicability]
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//~^ ERROR `#[applicability]` is only valid on suggestions
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applicability: Applicability,
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example)]
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struct Y {
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#[primary_span]
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span: Span,
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#[bar]
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//~^ ERROR `#[bar]` is not a valid attribute
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//~^^ ERROR cannot find attribute `bar` in this scope
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bar: String,
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example)]
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struct Z {
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#[primary_span]
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span: Span,
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#[bar = "..."]
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//~^ ERROR `#[bar = ...]` is not a valid attribute
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//~^^ ERROR cannot find attribute `bar` in this scope
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bar: String,
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example)]
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struct AA {
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#[primary_span]
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span: Span,
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#[bar("...")]
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//~^ ERROR `#[bar(...)]` is not a valid attribute
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//~^^ ERROR cannot find attribute `bar` in this scope
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bar: String,
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example)]
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struct AB {
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#[primary_span]
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span: Span,
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#[skip_arg]
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z: Z,
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}
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#[derive(Subdiagnostic)]
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union AC {
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//~^ ERROR failed to resolve: you might be missing crate `core`
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//~| NOTE you might be missing crate `core`
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span: u32,
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b: u64,
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example)]
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#[label(no_crate_example)]
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struct AD {
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#[primary_span]
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span: Span,
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example, no_crate::example)]
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//~^ ERROR a diagnostic slug must be the first argument to the attribute
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struct AE {
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#[primary_span]
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span: Span,
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}
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#[derive(Subdiagnostic)]
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#[label(no_crate_example)]
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struct AF {
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#[primary_span]
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//~^ NOTE previously specified here
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span_a: Span,
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#[primary_span]
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//~^ ERROR specified multiple times
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span_b: Span,
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}
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#[derive(Subdiagnostic)]
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struct AG {
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//~^ ERROR subdiagnostic kind not specified
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#[primary_span]
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span: Span,
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}
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example, code = "...")]
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struct AH {
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#[primary_span]
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span: Span,
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#[applicability]
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applicability: Applicability,
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var: String,
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}
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#[derive(Subdiagnostic)]
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enum AI {
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#[suggestion(no_crate_example, code = "...")]
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A {
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#[primary_span]
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span: Span,
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#[applicability]
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applicability: Applicability,
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var: String,
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},
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#[suggestion(no_crate_example, code = "...")]
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B {
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#[primary_span]
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span: Span,
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#[applicability]
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applicability: Applicability,
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var: String,
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},
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}
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example, code = "...", code = "...")]
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//~^ ERROR specified multiple times
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//~^^ NOTE previously specified here
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struct AJ {
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#[primary_span]
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span: Span,
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#[applicability]
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applicability: Applicability,
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}
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example, code = "...")]
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struct AK {
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#[primary_span]
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span: Span,
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#[applicability]
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//~^ NOTE previously specified here
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applicability_a: Applicability,
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#[applicability]
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//~^ ERROR specified multiple times
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applicability_b: Applicability,
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}
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example, code = "...")]
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struct AL {
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#[primary_span]
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span: Span,
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#[applicability]
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//~^ ERROR the `#[applicability]` attribute can only be applied to fields of type `Applicability`
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applicability: Span,
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}
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example, code = "...")]
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struct AM {
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#[primary_span]
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span: Span,
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}
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example)]
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//~^ ERROR suggestion without `code = "..."`
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struct AN {
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#[primary_span]
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span: Span,
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#[applicability]
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applicability: Applicability,
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}
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example, code = "...", applicability = "foo")]
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//~^ ERROR invalid applicability
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struct AO {
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#[primary_span]
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span: Span,
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}
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#[derive(Subdiagnostic)]
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#[help(no_crate_example)]
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struct AP {
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[note(no_crate_example)]
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struct AQ;
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example, code = "...")]
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//~^ ERROR suggestion without `#[primary_span]` field
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struct AR {
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example, code = "...", applicability = "machine-applicable")]
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struct AS {
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#[primary_span]
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span: Span,
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}
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#[derive(Subdiagnostic)]
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#[label]
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//~^ ERROR unsupported type attribute for subdiagnostic enum
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enum AT {
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#[label(no_crate_example)]
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A {
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#[primary_span]
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span: Span,
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var: String,
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},
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}
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example, code = "{var}", applicability = "machine-applicable")]
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struct AU {
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#[primary_span]
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span: Span,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example, code = "{var}", applicability = "machine-applicable")]
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//~^ ERROR `var` doesn't refer to a field on this type
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struct AV {
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#[primary_span]
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span: Span,
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}
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#[derive(Subdiagnostic)]
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enum AW {
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#[suggestion(no_crate_example, code = "{var}", applicability = "machine-applicable")]
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A {
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#[primary_span]
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span: Span,
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var: String,
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},
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}
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#[derive(Subdiagnostic)]
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enum AX {
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#[suggestion(no_crate_example, code = "{var}", applicability = "machine-applicable")]
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//~^ ERROR `var` doesn't refer to a field on this type
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A {
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#[primary_span]
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span: Span,
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},
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}
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#[derive(Subdiagnostic)]
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#[warning(no_crate_example)]
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struct AY {}
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#[derive(Subdiagnostic)]
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#[warning(no_crate_example)]
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struct AZ {
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#[primary_span]
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span: Span,
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}
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#[derive(Subdiagnostic)]
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#[suggestion(no_crate_example, code = "...")]
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//~^ ERROR suggestion without `#[primary_span]` field
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struct BA {
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#[suggestion_part]
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//~^ ERROR `#[suggestion_part]` is not a valid attribute
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span: Span,
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#[suggestion_part(code = "...")]
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//~^ ERROR `#[suggestion_part(...)]` is not a valid attribute
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span2: Span,
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#[applicability]
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applicability: Applicability,
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[multipart_suggestion(no_crate_example, code = "...", applicability = "machine-applicable")]
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//~^ ERROR multipart suggestion without any `#[suggestion_part(...)]` fields
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//~| ERROR invalid nested attribute
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struct BBa {
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var: String,
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}
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#[derive(Subdiagnostic)]
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#[multipart_suggestion(no_crate_example, applicability = "machine-applicable")]
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struct BBb {
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#[suggestion_part]
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//~^ ERROR `#[suggestion_part(...)]` attribute without `code = "..."`
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span1: Span,
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}
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#[derive(Subdiagnostic)]
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#[multipart_suggestion(no_crate_example, applicability = "machine-applicable")]
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struct BBc {
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#[suggestion_part()]
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//~^ ERROR `#[suggestion_part(...)]` attribute without `code = "..."`
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span1: Span,
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}
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#[derive(Subdiagnostic)]
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#[multipart_suggestion(no_crate_example)]
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|
//~^ ERROR multipart suggestion without any `#[suggestion_part(...)]` fields
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|
struct BC {
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#[primary_span]
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|
//~^ ERROR `#[primary_span]` is not a valid attribute
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|
span: Span,
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|
}
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|
#[derive(Subdiagnostic)]
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|
#[multipart_suggestion(no_crate_example)]
|
|
struct BD {
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|
#[suggestion_part]
|
|
//~^ ERROR `#[suggestion_part(...)]` attribute without `code = "..."`
|
|
span1: Span,
|
|
#[suggestion_part()]
|
|
//~^ ERROR `#[suggestion_part(...)]` attribute without `code = "..."`
|
|
span2: Span,
|
|
#[suggestion_part(foo = "bar")]
|
|
//~^ ERROR `code` is the only valid nested attribute
|
|
//~| ERROR failed to resolve: you might be missing crate `core`
|
|
//~| NOTE you might be missing crate `core`
|
|
span4: Span,
|
|
#[suggestion_part(code = "...")]
|
|
//~^ ERROR the `#[suggestion_part(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
|
|
s1: String,
|
|
#[suggestion_part()]
|
|
//~^ ERROR the `#[suggestion_part(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
|
|
s2: String,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
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|
#[multipart_suggestion(no_crate_example, applicability = "machine-applicable")]
|
|
struct BE {
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|
#[suggestion_part(code = "...", code = ",,,")]
|
|
//~^ ERROR specified multiple times
|
|
//~| NOTE previously specified here
|
|
span: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[multipart_suggestion(no_crate_example, applicability = "machine-applicable")]
|
|
struct BF {
|
|
#[suggestion_part(code = "(")]
|
|
first: Span,
|
|
#[suggestion_part(code = ")")]
|
|
second: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[multipart_suggestion(no_crate_example)]
|
|
struct BG {
|
|
#[applicability]
|
|
appl: Applicability,
|
|
#[suggestion_part(code = "(")]
|
|
first: Span,
|
|
#[suggestion_part(code = ")")]
|
|
second: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[multipart_suggestion(no_crate_example, applicability = "machine-applicable")]
|
|
struct BH {
|
|
#[applicability]
|
|
//~^ ERROR `#[applicability]` has no effect
|
|
appl: Applicability,
|
|
#[suggestion_part(code = "(")]
|
|
first: Span,
|
|
#[suggestion_part(code = ")")]
|
|
second: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[multipart_suggestion(no_crate_example, applicability = "machine-applicable")]
|
|
struct BI {
|
|
#[suggestion_part(code = "")]
|
|
spans: Vec<Span>,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[label(no_crate_example)]
|
|
struct BJ {
|
|
#[primary_span]
|
|
span: Span,
|
|
r#type: String,
|
|
}
|
|
|
|
/// with a doc comment on the type..
|
|
#[derive(Subdiagnostic)]
|
|
#[label(no_crate_example)]
|
|
struct BK {
|
|
/// ..and the field
|
|
#[primary_span]
|
|
span: Span,
|
|
}
|
|
|
|
/// with a doc comment on the type..
|
|
#[derive(Subdiagnostic)]
|
|
enum BL {
|
|
/// ..and the variant..
|
|
#[label(no_crate_example)]
|
|
Foo {
|
|
/// ..and the field
|
|
#[primary_span]
|
|
span: Span,
|
|
},
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[multipart_suggestion(no_crate_example)]
|
|
struct BM {
|
|
#[suggestion_part(code("foo"))]
|
|
//~^ ERROR expected exactly one string literal for `code = ...`
|
|
//~| ERROR failed to resolve: you might be missing crate `core`
|
|
//~| NOTE you might be missing crate `core`
|
|
span: Span,
|
|
r#type: String,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[multipart_suggestion(no_crate_example)]
|
|
struct BN {
|
|
#[suggestion_part(code("foo", "bar"))]
|
|
//~^ ERROR expected exactly one string literal for `code = ...`
|
|
//~| ERROR failed to resolve: you might be missing crate `core`
|
|
//~| NOTE you might be missing crate `core`
|
|
span: Span,
|
|
r#type: String,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[multipart_suggestion(no_crate_example)]
|
|
struct BO {
|
|
#[suggestion_part(code(3))]
|
|
//~^ ERROR expected exactly one string literal for `code = ...`
|
|
//~| ERROR failed to resolve: you might be missing crate `core`
|
|
//~| NOTE you might be missing crate `core`
|
|
span: Span,
|
|
r#type: String,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[multipart_suggestion(no_crate_example)]
|
|
struct BP {
|
|
#[suggestion_part(code())]
|
|
//~^ ERROR expected exactly one string literal for `code = ...`
|
|
span: Span,
|
|
r#type: String,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
//~^ ERROR cannot find value `__code_29` in this scope
|
|
//~| NOTE in this expansion
|
|
//~| NOTE not found in this scope
|
|
#[multipart_suggestion(no_crate_example)]
|
|
struct BQ {
|
|
#[suggestion_part(code = 3)]
|
|
//~^ ERROR failed to resolve: you might be missing crate `core`
|
|
//~| NOTE you might be missing crate `core`
|
|
span: Span,
|
|
r#type: String,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion(no_crate_example, code = "")]
|
|
struct SuggestionStyleDefault {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion(no_crate_example, code = "", style = "short")]
|
|
struct SuggestionStyleShort {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion(no_crate_example, code = "", style = "hidden")]
|
|
struct SuggestionStyleHidden {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion(no_crate_example, code = "", style = "verbose")]
|
|
struct SuggestionStyleVerbose {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion(no_crate_example, code = "", style = "tool-only")]
|
|
struct SuggestionStyleToolOnly {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion(no_crate_example, code = "", style = "hidden", style = "normal")]
|
|
//~^ ERROR specified multiple times
|
|
//~| NOTE previously specified here
|
|
struct SuggestionStyleTwice {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion_hidden(no_crate_example, code = "")]
|
|
//~^ ERROR #[suggestion_hidden(...)]` is not a valid attribute
|
|
struct SuggestionStyleOldSyntax {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion_hidden(no_crate_example, code = "", style = "normal")]
|
|
//~^ ERROR #[suggestion_hidden(...)]` is not a valid attribute
|
|
struct SuggestionStyleOldAndNewSyntax {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion(no_crate_example, code = "", style = "foo")]
|
|
//~^ ERROR invalid suggestion style
|
|
struct SuggestionStyleInvalid1 {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion(no_crate_example, code = "", style = 42)]
|
|
//~^ ERROR expected `= "xxx"`
|
|
struct SuggestionStyleInvalid2 {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion(no_crate_example, code = "", style)]
|
|
//~^ ERROR a diagnostic slug must be the first argument to the attribute
|
|
struct SuggestionStyleInvalid3 {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion(no_crate_example, code = "", style("foo"))]
|
|
//~^ ERROR expected `= "xxx"`
|
|
//~| ERROR failed to resolve: you might be missing crate `core`
|
|
//~| NOTE you might be missing crate `core`
|
|
struct SuggestionStyleInvalid4 {
|
|
#[primary_span]
|
|
sub: Span,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
#[suggestion(no_crate_example, code = "")]
|
|
//~^ ERROR suggestion without `#[primary_span]` field
|
|
struct PrimarySpanOnVec {
|
|
#[primary_span]
|
|
//~^ ERROR `#[primary_span]` is not a valid attribute
|
|
//~| NOTE there must be exactly one primary span
|
|
sub: Vec<Span>,
|
|
}
|
|
|
|
#[derive(Subdiagnostic)]
|
|
struct NestedParent {
|
|
#[subdiagnostic]
|
|
single_sub: A,
|
|
#[subdiagnostic]
|
|
option_sub: Option<A>,
|
|
#[subdiagnostic]
|
|
vec_sub: Vec<A>,
|
|
}
|