rust-clippy/clippy_lints/src/asm_syntax.rs
xFrednet d647696c1f
Added clippy::version attribute to all normal lints
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 -.-
2021-11-10 19:48:31 +01:00

127 lines
3.5 KiB
Rust

use std::fmt;
use clippy_utils::diagnostics::span_lint_and_help;
use rustc_ast::ast::{Expr, ExprKind, InlineAsmOptions};
use rustc_lint::{EarlyContext, EarlyLintPass, Lint};
use rustc_session::{declare_lint_pass, declare_tool_lint};
#[derive(Clone, Copy, PartialEq, Eq)]
enum AsmStyle {
Intel,
Att,
}
impl fmt::Display for AsmStyle {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
AsmStyle::Intel => f.write_str("Intel"),
AsmStyle::Att => f.write_str("AT&T"),
}
}
}
impl std::ops::Not for AsmStyle {
type Output = AsmStyle;
fn not(self) -> AsmStyle {
match self {
AsmStyle::Intel => AsmStyle::Att,
AsmStyle::Att => AsmStyle::Intel,
}
}
}
fn check_expr_asm_syntax(lint: &'static Lint, cx: &EarlyContext<'_>, expr: &Expr, check_for: AsmStyle) {
if let ExprKind::InlineAsm(ref inline_asm) = expr.kind {
let style = if inline_asm.options.contains(InlineAsmOptions::ATT_SYNTAX) {
AsmStyle::Att
} else {
AsmStyle::Intel
};
if style == check_for {
span_lint_and_help(
cx,
lint,
expr.span,
&format!("{} x86 assembly syntax used", style),
None,
&format!("use {} x86 assembly syntax", !style),
);
}
}
}
declare_clippy_lint! {
/// ### What it does
/// Checks for usage of Intel x86 assembly syntax.
///
/// ### Why is this bad?
/// The lint has been enabled to indicate a preference
/// for AT&T x86 assembly syntax.
///
/// ### Example
///
/// ```rust,no_run
/// # #![feature(asm)]
/// # unsafe { let ptr = "".as_ptr();
/// asm!("lea {}, [{}]", lateout(reg) _, in(reg) ptr);
/// # }
/// ```
/// Use instead:
/// ```rust,no_run
/// # #![feature(asm)]
/// # unsafe { let ptr = "".as_ptr();
/// asm!("lea ({}), {}", in(reg) ptr, lateout(reg) _, options(att_syntax));
/// # }
/// ```
#[clippy::version = "1.49.0"]
pub INLINE_ASM_X86_INTEL_SYNTAX,
restriction,
"prefer AT&T x86 assembly syntax"
}
declare_lint_pass!(InlineAsmX86IntelSyntax => [INLINE_ASM_X86_INTEL_SYNTAX]);
impl EarlyLintPass for InlineAsmX86IntelSyntax {
fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) {
check_expr_asm_syntax(Self::get_lints()[0], cx, expr, AsmStyle::Intel);
}
}
declare_clippy_lint! {
/// ### What it does
/// Checks for usage of AT&T x86 assembly syntax.
///
/// ### Why is this bad?
/// The lint has been enabled to indicate a preference
/// for Intel x86 assembly syntax.
///
/// ### Example
///
/// ```rust,no_run
/// # #![feature(asm)]
/// # unsafe { let ptr = "".as_ptr();
/// asm!("lea ({}), {}", in(reg) ptr, lateout(reg) _, options(att_syntax));
/// # }
/// ```
/// Use instead:
/// ```rust,no_run
/// # #![feature(asm)]
/// # unsafe { let ptr = "".as_ptr();
/// asm!("lea {}, [{}]", lateout(reg) _, in(reg) ptr);
/// # }
/// ```
#[clippy::version = "1.49.0"]
pub INLINE_ASM_X86_ATT_SYNTAX,
restriction,
"prefer Intel x86 assembly syntax"
}
declare_lint_pass!(InlineAsmX86AttSyntax => [INLINE_ASM_X86_ATT_SYNTAX]);
impl EarlyLintPass for InlineAsmX86AttSyntax {
fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) {
check_expr_asm_syntax(Self::get_lints()[0], cx, expr, AsmStyle::Att);
}
}