fix(formatter): Correct parentheses in TSIntersectionType (#14098)

Author: nnnnoel

crates/oxc_formatter/src/parentheses/ts_type.rs

@@ -126,12 +126,13 @@ fn operator_type_or_higher_needs_parens(span: Span, parent: &AstNodes) -> bool {
 
 impl<'a> NeedsParentheses<'a> for AstNode<'a, TSIntersectionType<'a>> {
     fn needs_parentheses(&self, f: &Formatter<'_, 'a>) -> bool {
-        matches!(
-            self.parent,
-            AstNodes::TSArrayType(_)
-                | AstNodes::TSTypeOperator(_)
-                | AstNodes::TSIndexedAccessType(_)
-        )
+        match self.parent {
+            AstNodes::TSUnionType(union) => self.types.len() > 1 && union.types.len() > 1,
+            AstNodes::TSIntersectionType(intersection) => {
+                self.types.len() > 1 && intersection.types.len() > 1
+            }
+            parent => operator_type_or_higher_needs_parens(self.span(), parent),
+        }
     }
 }
 

tasks/prettier_conformance/snapshots/prettier.ts.snap.md

@@ -31,16 +31,16 @@ ts compatibility: 533/573 (93.02%)
 | typescript/definite/without-annotation.ts | 💥 | 83.33% |
 | typescript/enum/computed-members.ts | 💥 | 0.00% |
 | typescript/interface/ignore.ts | 💥✨ | 40.09% |
-| typescript/intersection/intersection-parens.ts | 💥💥 | 80.85% |
+| typescript/intersection/intersection-parens.ts | 💥💥 | 86.17% |
 | typescript/intersection/consistent-with-flow/intersection-parens.ts | 💥 | 69.77% |
 | typescript/last-argument-expansion/decorated-function.tsx | 💥 | 29.06% |
 | typescript/multiparser-css/issue-6259.ts | 💥 | 57.14% |
 | typescript/non-null/optional-chain.ts | 💥 | 72.22% |
 | typescript/object-multiline/multiline.ts | 💥✨ | 23.21% |
 | typescript/prettier-ignore/mapped-types.ts | 💥 | 63.16% |
-| typescript/prettier-ignore/prettier-ignore-nested-unions.ts | 💥 | 44.00% |
+| typescript/prettier-ignore/prettier-ignore-nested-unions.ts | 💥 | 68.00% |
 | typescript/type-arguments-bit-shift-left-like/3.ts | 💥 | 0.00% |
 | typescript/type-arguments-bit-shift-left-like/5.tsx | 💥 | 0.00% |
 | typescript/union/union-parens.ts | 💥 | 92.59% |
-| typescript/union/consistent-with-flow/prettier-ignore.ts | 💥 | 60.00% |
+| typescript/union/consistent-with-flow/prettier-ignore.ts | 💥 | 88.00% |
 | typescript/union/single-type/single-type.ts | 💥 | 0.00% |