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 -.-
45 lines
1.4 KiB
Rust
45 lines
1.4 KiB
Rust
use clippy_utils::diagnostics::span_lint;
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use clippy_utils::is_adjusted;
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use rustc_hir::{Expr, ExprKind};
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use rustc_lint::{LateContext, LateLintPass};
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use rustc_session::{declare_lint_pass, declare_tool_lint};
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declare_clippy_lint! {
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/// ### What it does
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/// Checks for construction of a structure or tuple just to
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/// assign a value in it.
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///
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/// ### Why is this bad?
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/// Readability. If the structure is only created to be
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/// updated, why not write the structure you want in the first place?
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///
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/// ### Example
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/// ```rust
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/// (0, 0).0 = 1
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/// ```
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#[clippy::version = "pre 1.29.0"]
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pub TEMPORARY_ASSIGNMENT,
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complexity,
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"assignments to temporaries"
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}
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fn is_temporary(expr: &Expr<'_>) -> bool {
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matches!(&expr.kind, ExprKind::Struct(..) | ExprKind::Tup(..))
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}
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declare_lint_pass!(TemporaryAssignment => [TEMPORARY_ASSIGNMENT]);
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impl<'tcx> LateLintPass<'tcx> for TemporaryAssignment {
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fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
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if let ExprKind::Assign(target, ..) = &expr.kind {
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let mut base = target;
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while let ExprKind::Field(f, _) | ExprKind::Index(f, _) = &base.kind {
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base = f;
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}
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if is_temporary(base) && !is_adjusted(cx, base) {
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span_lint(cx, TEMPORARY_ASSIGNMENT, expr.span, "assignment to temporary");
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}
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}
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}
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}
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