[core][rewriter] dpsc: implement WrapSetComputed

Author: velzie

rewriter/js/src/changes.rs

@@ -49,6 +49,7 @@ pub enum JsChangeType<'alloc: 'data, 'data> {
        	ident: Atom<'data>,
         propspan: Span
     },
+    WrapSetComputed,
 
 	/// insert `${cfg.setrealmfn}({}).`
 	SetRealmFn,
@@ -142,6 +143,10 @@ impl<'alloc: 'data, 'data> Transform<'data> for JsChange<'alloc, 'data> {
     			ident,
     			"("
 			]),
+			Ty::WrapSetComputed => LL::insert(transforms![
+			    &cfg.wrapcomputedsetfn,
+				"("
+			]),
 			Ty::SetRealmFn => LL::insert(transforms![&cfg.setrealmfn, "({})."]),
 			Ty::ScramErrFn { ident } => LL::insert(transforms!["$scramerr(", ident, ");"]),
 			Ty::ScramitizeFn => LL::insert(transforms![" $scramitize("]),

rewriter/js/src/rewrite.rs

@@ -162,7 +162,20 @@ impl<'alloc: 'data, 'data> RewriteType<'alloc, 'data> {
 					}
 				)
             ],
-            RewriteType::WrapSetComputed { .. } => todo!(),
+            RewriteType::WrapSetComputed { leftspan, rightspan, propspan } => smallvec![
+                change!(span!(start), WrapSetComputed),
+                // replace the bracket with ,
+				change!(Span::new(leftspan.end, propspan.start), Replace { text: "," }),
+				// replace the other bracket with another ,
+				change!(Span::new(propspan.end, rightspan.start), Replace { text: "," }),
+				change!(
+					span!(end),
+					ClosingParen {
+						semi: false,
+						replace: true
+					}
+				)
+            ],
 			Self::SetRealmFn => smallvec![change!(span, SetRealmFn)],
 			Self::ImportFn => smallvec![change!(span, ImportFn)],
 			Self::MetaFn => smallvec![change!(span, MetaFn)],

rewriter/js/src/visitor.rs

@@ -338,6 +338,15 @@ where
 
                 // more to walk
                 walk::walk_expression(self, &s.object);
+			}
+			AssignmentTarget::ComputedMemberExpression(s)=> {
+                self.jschanges.add(rewrite!(it.span, WrapSetComputed {
+                    propspan: s.expression.span(),
+                    leftspan: s.object.span(),
+                    rightspan: it.right.span(),
+                }));
+                walk::walk_expression(self, &s.object);
+                walk::walk_expression(self, &s.expression);
 			}
 			AssignmentTarget::ArrayAssignmentTarget(_) => {
 				// [location] = ["https://example.com"]