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ast_lowering: use derive more

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Signed-off-by: David Wood <david.wood@huawei.com>
This commit is contained in:
David Wood 2022-10-14 13:10:49 +01:00
parent feeeb11d89
commit 2a4b587a68
1 changed files with 18 additions and 41 deletions
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59
compiler/rustc_ast_lowering/src/errors.rs
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@ -1,7 +1,4 @@
use rustc_errors::{
fluent, AddToDiagnostic, Applicability, Diagnostic, DiagnosticArgFromDisplay,
SubdiagnosticMessage,
};
use rustc_errors::DiagnosticArgFromDisplay;
use rustc_macros::{Diagnostic, Subdiagnostic};
use rustc_span::{symbol::Ident, Span, Symbol};
@ -15,25 +12,15 @@ pub struct GenericTypeWithParentheses {
pub sub: Option<UseAngleBrackets>,
}
#[derive(Clone, Copy)]
#[derive(Clone, Copy, Subdiagnostic)]
#[multipart_suggestion(ast_lowering::use_angle_brackets, applicability = "maybe-incorrect")]
pub struct UseAngleBrackets {
#[suggestion_part(code = "<")]
pub open_param: Span,
#[suggestion_part(code = ">")]
pub close_param: Span,
}
impl AddToDiagnostic for UseAngleBrackets {
fn add_to_diagnostic_with<F>(self, diag: &mut Diagnostic, _: F)
where
F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage,
{
diag.multipart_suggestion(
fluent::ast_lowering::use_angle_brackets,
vec![(self.open_param, String::from("<")), (self.close_param, String::from(">"))],
Applicability::MaybeIncorrect,
);
}
}
#[derive(Diagnostic)]
#[diag(ast_lowering::invalid_abi, code = "E0703")]
#[note]
@ -68,30 +55,20 @@ pub struct AssocTyParentheses {
pub sub: AssocTyParenthesesSub,
}
#[derive(Clone, Copy)]
#[derive(Clone, Copy, Subdiagnostic)]
pub enum AssocTyParenthesesSub {
Empty { parentheses_span: Span },
NotEmpty { open_param: Span, close_param: Span },
}
impl AddToDiagnostic for AssocTyParenthesesSub {
fn add_to_diagnostic_with<F>(self, diag: &mut Diagnostic, _: F)
where
F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage,
{
match self {
Self::Empty { parentheses_span } => diag.multipart_suggestion(
fluent::ast_lowering::remove_parentheses,
vec![(parentheses_span, String::new())],
Applicability::MaybeIncorrect,
),
Self::NotEmpty { open_param, close_param } => diag.multipart_suggestion(
fluent::ast_lowering::use_angle_brackets,
vec![(open_param, String::from("<")), (close_param, String::from(">"))],
Applicability::MaybeIncorrect,
),
};
}
#[multipart_suggestion(ast_lowering::remove_parentheses)]
Empty {
#[suggestion_part(code = "")]
parentheses_span: Span,
},
#[multipart_suggestion(ast_lowering::use_angle_brackets)]
NotEmpty {
#[suggestion_part(code = "<")]
open_param: Span,
#[suggestion_part(code = ">")]
close_param: Span,
},
}
#[derive(Diagnostic)]