d647696c1f
So, some context for this, well, more a story. I'm not used to scripting, I've never really scripted anything, even if it's a valuable skill. I just never really needed it. Now, `@flip1995` correctly suggested using a script for this in `rust-clippy#7813`...
And I decided to write a script using nushell because why not? This was a mistake... I spend way more time on this than I would like to admit. It has definitely been more than 4 hours. It shouldn't take that long, but me being new to scripting and nushell just wasn't a good mixture... Anyway, here is the script that creates another script which adds the versions. Fun...
Just execute this on the `gh-pages` branch and the resulting `replacer.sh` in `clippy_lints` and it should all work.
```nu
mv v0.0.212 rust-1.00.0;
mv beta rust-1.57.0;
mv master rust-1.58.0;
let paths = (open ./rust-1.58.0/lints.json | select id id_span | flatten | select id path);
let versions = (
ls | where name =~ "rust-" | select name | format {name}/lints.json |
each { open $it | select id | insert version $it | str substring "5,11" version} |
group-by id | rotate counter-clockwise id version |
update version {get version | first 1} | flatten | select id version);
$paths | each { |row|
let version = ($versions | where id == ($row.id) | format {version})
let idu = ($row.id | str upcase)
$"sed -i '0,/($idu),/{s/pub ($idu),/#[clippy::version = "($version)"]\n pub ($idu),/}' ($row.path)"
} | str collect ";" | str find-replace --all '1.00.0' 'pre 1.29.0' | save "replacer.sh";
```
And this still has some problems, but at this point I just want to be done -.-
87 lines
2.5 KiB
Rust
87 lines
2.5 KiB
Rust
use clippy_utils::diagnostics::span_lint_and_sugg;
|
|
use clippy_utils::{meets_msrv, msrvs};
|
|
use rustc_ast::ast::{Expr, ExprKind};
|
|
use rustc_errors::Applicability;
|
|
use rustc_lint::{EarlyContext, EarlyLintPass};
|
|
use rustc_middle::lint::in_external_macro;
|
|
use rustc_semver::RustcVersion;
|
|
use rustc_session::{declare_tool_lint, impl_lint_pass};
|
|
|
|
declare_clippy_lint! {
|
|
/// ### What it does
|
|
/// Checks for fields in struct literals where shorthands
|
|
/// could be used.
|
|
///
|
|
/// ### Why is this bad?
|
|
/// If the field and variable names are the same,
|
|
/// the field name is redundant.
|
|
///
|
|
/// ### Example
|
|
/// ```rust
|
|
/// let bar: u8 = 123;
|
|
///
|
|
/// struct Foo {
|
|
/// bar: u8,
|
|
/// }
|
|
///
|
|
/// let foo = Foo { bar: bar };
|
|
/// ```
|
|
/// the last line can be simplified to
|
|
/// ```ignore
|
|
/// let foo = Foo { bar };
|
|
/// ```
|
|
#[clippy::version = "pre 1.29.0"]
|
|
pub REDUNDANT_FIELD_NAMES,
|
|
style,
|
|
"checks for fields in struct literals where shorthands could be used"
|
|
}
|
|
|
|
pub struct RedundantFieldNames {
|
|
msrv: Option<RustcVersion>,
|
|
}
|
|
|
|
impl RedundantFieldNames {
|
|
#[must_use]
|
|
pub fn new(msrv: Option<RustcVersion>) -> Self {
|
|
Self { msrv }
|
|
}
|
|
}
|
|
|
|
impl_lint_pass!(RedundantFieldNames => [REDUNDANT_FIELD_NAMES]);
|
|
|
|
impl EarlyLintPass for RedundantFieldNames {
|
|
fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) {
|
|
if !meets_msrv(self.msrv.as_ref(), &msrvs::FIELD_INIT_SHORTHAND) {
|
|
return;
|
|
}
|
|
|
|
if in_external_macro(cx.sess, expr.span) {
|
|
return;
|
|
}
|
|
if let ExprKind::Struct(ref se) = expr.kind {
|
|
for field in &se.fields {
|
|
if field.is_shorthand {
|
|
continue;
|
|
}
|
|
if let ExprKind::Path(None, path) = &field.expr.kind {
|
|
if path.segments.len() == 1
|
|
&& path.segments[0].ident == field.ident
|
|
&& path.segments[0].args.is_none()
|
|
{
|
|
span_lint_and_sugg(
|
|
cx,
|
|
REDUNDANT_FIELD_NAMES,
|
|
field.span,
|
|
"redundant field names in struct initialization",
|
|
"replace it with",
|
|
field.ident.to_string(),
|
|
Applicability::MachineApplicable,
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
extract_msrv_attr!(EarlyContext);
|
|
}
|