support private name in decorator member expr

babel · Jun 14, 2022 · 743b3f0 · 743b3f0
1 parent f8785e9
commit 743b3f0
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Showing 5 changed files with 600 additions and 1 deletion.
diff --git a/packages/babel-parser/src/parser/statement.js b/packages/babel-parser/src/parser/statement.js
@@ -552,7 +552,15 @@ export default class StatementParser extends ExpressionParser {
         while (this.eat(tt.dot)) {
           const node = this.startNodeAt(startPos, startLoc);
           node.object = expr;
-          node.property = this.parseIdentifier(true);
+          if (this.match(tt.privateName)) {
+            this.classScope.usePrivateName(
+              this.state.value,
+              this.state.startLoc,
+            );
+            node.property = this.parsePrivateName();
+          } else {
+            node.property = this.parseIdentifier(true);
+          }
           node.computed = false;
           expr = this.finishNode(node, "MemberExpression");
         }

diff --git a/...parser/test/fixtures/experimental/decorators/decorator-member-expression-private/input.js b/...parser/test/fixtures/experimental/decorators/decorator-member-expression-private/input.js
@@ -0,0 +1,11 @@
+class C {
+  static decFactory = () => () => {}
+  static #decFactory = () => () => {}
+  static dec = C.decFactory();
+  static #dec = C.#decFactory();
+  static self = C;
+  static #self = C;
+  @C.#dec @C.self.#dec @C.#self.dec @C.#self.#dec
+  @C.#decFactory() @C.self.#decFactory() @C.#self.decFactory() @C.#self.#decFactory()
+  m() {}
+}