feat(linter): implement no-negated-condition rule

crates/oxc_linter/src/config/rules.rs

@@ -160,6 +160,10 @@ fn transform_rule_and_plugin_name<'a>(
         return (rule_name, "eslint");
     }
 
+    if plugin_name == "unicorn" && rule_name == "no-negated-condition" {
+        return ("no-negated-condition", "eslint");
+    }
+
     (rule_name, plugin_name)
 }
 

crates/oxc_linter/src/rules.rs

@@ -93,6 +93,7 @@ mod eslint {
     pub mod no_loss_of_precision;
     pub mod no_magic_numbers;
     pub mod no_multi_str;
+    pub mod no_negated_condition;
     pub mod no_nested_ternary;
     pub mod no_new;
     pub mod no_new_func;
@@ -320,7 +321,6 @@ mod unicorn {
     pub mod no_length_as_slice_end;
     pub mod no_lonely_if;
     pub mod no_magic_array_flat_depth;
-    pub mod no_negated_condition;
     pub mod no_negation_in_equality_check;
     pub mod no_nested_ternary;
     pub mod no_new_array;
@@ -587,6 +587,7 @@ oxc_macros::declare_all_lint_rules! {
     eslint::no_label_var,
     eslint::no_loss_of_precision,
     eslint::no_magic_numbers,
+    eslint::no_negated_condition,
     eslint::no_multi_str,
     eslint::no_new_func,
     eslint::no_new_native_nonconstructor,
@@ -918,7 +919,6 @@ oxc_macros::declare_all_lint_rules! {
     unicorn::no_length_as_slice_end,
     unicorn::no_lonely_if,
     unicorn::no_magic_array_flat_depth,
-    unicorn::no_negated_condition,
     unicorn::no_negation_in_equality_check,
     unicorn::no_nested_ternary,
     unicorn::no_new_array,

crates/oxc_linter/src/rules/unicorn/no_negated_condition.rs → crates/oxc_linter/src/rules/eslint/no_negated_condition.rs

@@ -106,6 +106,20 @@ fn test() {
     use crate::tester::Tester;
 
     let pass = vec![
+        "if (a) {}",
+        "if (a) {} else {}",
+        "if (!a) {}",
+        "if (!a) {} else if (b) {}",
+        "if (!a) {} else if (b) {} else {}",
+        "if (a == b) {}",
+        "if (a == b) {} else {}",
+        "if (a != b) {}",
+        "if (a != b) {} else if (b) {}",
+        "if (a != b) {} else if (b) {} else {}",
+        "if (a !== b) {}",
+        "if (a === b) {} else {}",
+        "a ? b : c",
+        // Test cases from eslint-plugin-unicorn
         r"if (a) {}",
         r"if (a) {} else {}",
         r"if (!a) {}",
@@ -122,6 +136,13 @@ fn test() {
     ];
 
     let fail = vec![
+        "if (!a) {;} else {;}",
+        "if (a != b) {;} else {;}",
+        "if (a !== b) {;} else {;}",
+        "!a ? b : c",
+        "a != b ? c : d",
+        "a !== b ? c : d",
+        // Test cases from eslint-plugin-unicorn
         r"if (!a) {;} else {;}",
         r"if (a != b) {;} else {;}",
         r"if (a !== b) {;} else {;}",

crates/oxc_linter/src/snapshots/unicorn_no_negated_condition.snap → crates/oxc_linter/src/snapshots/eslint_no_negated_condition.snap

@@ -2,126 +2,168 @@
 source: crates/oxc_linter/src/tester.rs
 snapshot_kind: text
 ---
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:5]
  1 │ if (!a) {;} else {;}
    ·     ──
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:5]
  1 │ if (a != b) {;} else {;}
    ·     ──────
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:5]
  1 │ if (a !== b) {;} else {;}
    ·     ───────
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:1]
  1 │ !a ? b : c
    · ──
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:1]
  1 │ a != b ? c : d
    · ──────
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:1]
  1 │ a !== b ? c : d
    · ───────
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
+   ╭─[no_negated_condition.tsx:1:5]
+ 1 │ if (!a) {;} else {;}
+   ·     ──
+   ╰────
+  help: Remove the negation operator and switch the consequent and alternate branches.
+
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
+   ╭─[no_negated_condition.tsx:1:5]
+ 1 │ if (a != b) {;} else {;}
+   ·     ──────
+   ╰────
+  help: Remove the negation operator and switch the consequent and alternate branches.
+
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
+   ╭─[no_negated_condition.tsx:1:5]
+ 1 │ if (a !== b) {;} else {;}
+   ·     ───────
+   ╰────
+  help: Remove the negation operator and switch the consequent and alternate branches.
+
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
+   ╭─[no_negated_condition.tsx:1:1]
+ 1 │ !a ? b : c
+   · ──
+   ╰────
+  help: Remove the negation operator and switch the consequent and alternate branches.
+
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
+   ╭─[no_negated_condition.tsx:1:1]
+ 1 │ a != b ? c : d
+   · ──────
+   ╰────
+  help: Remove the negation operator and switch the consequent and alternate branches.
+
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
+   ╭─[no_negated_condition.tsx:1:1]
+ 1 │ a !== b ? c : d
+   · ───────
+   ╰────
+  help: Remove the negation operator and switch the consequent and alternate branches.
+
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:4]
  1 │ (( !a )) ? b : c
    ·    ──
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:1]
  1 │ !(( a )) ? b : c
    · ────────
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:4]
  1 │ if(!(( a ))) b(); else c();
    ·    ────────
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:7]
  1 │ if((( !a ))) b(); else c();
    ·       ──
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:21]
  1 │ function a() {return!a ? b : c}
    ·                     ──
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:21]
  1 │ function a() {return!(( a )) ? b : c}
    ·                     ────────
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:1]
  1 │ !a ? b : c ? d : e
    · ──
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:1]
  1 │ !a ? b : (( c ? d : e ))
    · ──
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:4]
  1 │ if(!a) b(); else c()
    ·    ──
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:4]
  1 │ if(!a) {b()} else {c()}
    ·    ──
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:4]
  1 │ if(!!a) b(); else c();
    ·    ───
    ╰────
   help: Remove the negation operator and switch the consequent and alternate branches.
 
-  ⚠ eslint-plugin-unicorn(no-negated-condition): Unexpected negated condition.
+  ⚠ eslint(no-negated-condition): Unexpected negated condition.
    ╭─[no_negated_condition.tsx:1:2]
  1 │ (!!a) ? b() : c();
    ·  ───