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https://github.com/danbulant/oxc
synced 2026-05-24 12:21:58 +00:00
feat: add Typescript ban-tslint-comment (#2371)
Rule source: [link](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/rules/ban-tslint-comment.ts) Rule tests: [link](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/tests/rules/ban-tslint-comment.test.ts)
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3 changed files with 189 additions and 0 deletions
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@ -102,6 +102,7 @@ mod typescript {
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pub mod adjacent_overload_signatures;
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pub mod array_type;
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pub mod ban_ts_comment;
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pub mod ban_tslint_comment;
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pub mod ban_types;
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pub mod no_duplicate_enum_values;
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pub mod no_empty_interface;
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@ -394,6 +395,7 @@ oxc_macros::declare_all_lint_rules! {
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typescript::adjacent_overload_signatures,
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typescript::array_type,
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typescript::ban_ts_comment,
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typescript::ban_tslint_comment,
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typescript::ban_types,
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typescript::no_duplicate_enum_values,
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typescript::no_empty_interface,
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131
crates/oxc_linter/src/rules/typescript/ban_tslint_comment.rs
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131
crates/oxc_linter/src/rules/typescript/ban_tslint_comment.rs
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@ -0,0 +1,131 @@
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use lazy_static::lazy_static;
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use oxc_diagnostics::{
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miette::{self, Diagnostic},
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thiserror::{self, Error},
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};
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use oxc_macros::declare_oxc_lint;
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use oxc_span::Span;
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use regex::Regex;
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use crate::{context::LintContext, fixer::Fix, rule::Rule};
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#[derive(Debug, Error, Diagnostic)]
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#[error("typescript-eslint(ban-tslint-comment): tslint comment detected: \"{0}\"")]
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#[diagnostic(severity(warning))]
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struct BanTslintCommentDiagnostic(String, #[label] pub Span);
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#[derive(Debug, Default, Clone)]
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pub struct BanTslintComment;
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declare_oxc_lint!(
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/// ### What it does
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/// This rule disallows `tslint:<rule-flag>` comments
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///
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/// ### Why is this bad?
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/// Useful when migrating from TSLint to ESLint. Once TSLint has been
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/// removed, this rule helps locate TSLint annotations
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///
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/// ### Example
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/// ```javascript
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/// // tslint:disable-next-line
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/// someCode();
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/// ```
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BanTslintComment,
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style
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);
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impl Rule for BanTslintComment {
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fn run_once(&self, ctx: &LintContext) {
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let comments = ctx.semantic().trivias().comments();
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let source_text_len = ctx.semantic().source_text().len();
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for (start, comment) in comments {
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let raw = &ctx.semantic().source_text()[*start as usize..comment.end() as usize];
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if is_tslint_comment_directive(raw) {
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let comment_span = get_full_comment(
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source_text_len,
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*start,
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comment.end(),
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comment.is_multi_line(),
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);
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ctx.diagnostic_with_fix(
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BanTslintCommentDiagnostic(raw.trim().to_string(), comment_span),
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|| Fix::delete(comment_span),
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);
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}
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}
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}
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}
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fn is_tslint_comment_directive(raw: &str) -> bool {
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lazy_static! {
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static ref ENABLE_DISABLE_REGEX: Regex =
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Regex::new(r"^\s*tslint:(enable|disable)(?:-(line|next-line))?(:|\s|$)").unwrap();
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}
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ENABLE_DISABLE_REGEX.is_match(raw)
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}
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fn get_full_comment(source_text_len: usize, start: u32, end: u32, is_multi_line: bool) -> Span {
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let comment_start = start - 2;
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let mut comment_end = if is_multi_line { end + 2 } else { end };
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// Take into account new line at the end of the comment
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if source_text_len > comment_end as usize {
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comment_end += 1;
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}
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Span { start: comment_start, end: comment_end }
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}
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#[test]
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fn test() {
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use crate::tester::Tester;
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let pass = vec![
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r"let a: readonly any[] = [];",
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r"let a = new Array();",
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r"// some other comment",
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r"// TODO: this is a comment that mentions tslint",
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r"/* another comment that mentions tslint */",
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r"someCode(); // This is a comment that just happens to mention tslint",
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];
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let fail = vec![
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r"/* tslint:disable */",
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r"/* tslint:enable */",
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r"/* tslint:disable:rule1 rule2 rule3... */",
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r"/* tslint:enable:rule1 rule2 rule3... */",
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r"// tslint:disable-next-line",
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r"someCode(); // tslint:disable-line",
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r"// tslint:disable-next-line:rule1 rule2 rule3...",
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r"const woah = doSomeStuff();
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// tslint:disable-line
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console.log(woah);
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",
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];
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let fix = vec![
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(
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r"const woah = doSomeStuff();
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// tslint:disable-line
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console.log(woah);",
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r"const woah = doSomeStuff();
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console.log(woah);",
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None,
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),
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(
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r"const woah = doSomeStuff();
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/* tslint:disable-line */
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console.log(woah);",
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r"const woah = doSomeStuff();
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console.log(woah);",
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None,
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),
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(r"/* tslint:disable-line */", r"", None),
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];
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Tester::new(BanTslintComment::NAME, pass, fail).expect_fix(fix).test_and_snapshot();
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}
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56
crates/oxc_linter/src/snapshots/ban_tslint_comment.snap
Normal file
56
crates/oxc_linter/src/snapshots/ban_tslint_comment.snap
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@ -0,0 +1,56 @@
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---
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source: crates/oxc_linter/src/tester.rs
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expression: ban_tslint_comment
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---
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⚠ typescript-eslint(ban-tslint-comment): tslint comment detected: "tslint:disable"
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╭─[ban_tslint_comment.tsx:1:1]
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1 │ /* tslint:disable */
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· ────────────────────
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╰────
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⚠ typescript-eslint(ban-tslint-comment): tslint comment detected: "tslint:enable"
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╭─[ban_tslint_comment.tsx:1:1]
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1 │ /* tslint:enable */
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· ───────────────────
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╰────
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⚠ typescript-eslint(ban-tslint-comment): tslint comment detected: "tslint:disable:rule1 rule2 rule3..."
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╭─[ban_tslint_comment.tsx:1:1]
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1 │ /* tslint:disable:rule1 rule2 rule3... */
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· ─────────────────────────────────────────
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╰────
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⚠ typescript-eslint(ban-tslint-comment): tslint comment detected: "tslint:enable:rule1 rule2 rule3..."
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╭─[ban_tslint_comment.tsx:1:1]
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1 │ /* tslint:enable:rule1 rule2 rule3... */
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· ────────────────────────────────────────
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╰────
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⚠ typescript-eslint(ban-tslint-comment): tslint comment detected: "tslint:disable-next-line"
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╭─[ban_tslint_comment.tsx:1:1]
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1 │ // tslint:disable-next-line
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· ───────────────────────────
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╰────
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⚠ typescript-eslint(ban-tslint-comment): tslint comment detected: "tslint:disable-line"
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╭─[ban_tslint_comment.tsx:1:13]
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1 │ someCode(); // tslint:disable-line
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· ──────────────────────
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╰────
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⚠ typescript-eslint(ban-tslint-comment): tslint comment detected: "tslint:disable-next-line:rule1 rule2 rule3..."
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╭─[ban_tslint_comment.tsx:1:1]
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1 │ // tslint:disable-next-line:rule1 rule2 rule3...
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· ────────────────────────────────────────────────
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╰────
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⚠ typescript-eslint(ban-tslint-comment): tslint comment detected: "tslint:disable-line"
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╭─[ban_tslint_comment.tsx:2:9]
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1 │ const woah = doSomeStuff();
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2 │ // tslint:disable-line
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· ───────────────────────
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3 │ console.log(woah);
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4 │
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╰────
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