1 files changed, 59 insertions, 0 deletions
diff --git a/js/src/frontend/DecoratorEmitter.h b/js/src/frontend/DecoratorEmitter.h
new file mode 100644
index 0000000000..42cad2e81c
--- /dev/null
+++ b/js/src/frontend/DecoratorEmitter.h
@@ -0,0 +1,59 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef frontend_DecoratorEmitter_h
+#define frontend_DecoratorEmitter_h
+
+#include "mozilla/Attributes.h"
+
+#include "frontend/ParseNode.h"
+
+namespace js::frontend {
+
+struct BytecodeEmitter;
+
+class MOZ_STACK_CLASS DecoratorEmitter {
+ private:
+  BytecodeEmitter* bce_;
+
+ public:
+  enum Kind { Method, Getter, Setter, Field, Accessor, Class };
+
+  explicit DecoratorEmitter(BytecodeEmitter* bce);
+
+  [[nodiscard]] bool emitApplyDecoratorsToElementDefinition(
+      Kind kind, ParseNode* key, ListNode* decorators, bool isStatic);
+
+  [[nodiscard]] bool emitApplyDecoratorsToFieldDefinition(ParseNode* key,
+                                                          ListNode* decorators,
+                                                          bool isStatic);
+
+  [[nodiscard]] bool emitInitializeFieldOrAccessor();
+
+ private:
+  [[nodiscard]] bool emitPropertyKey(ParseNode* key);
+
+  [[nodiscard]] bool emitDecorationState();
+
+  [[nodiscard]] bool emitUpdateDecorationState();
+
+  [[nodiscard]] bool emitCallDecorator(Kind kind, ParseNode* key, bool isStatic,
+                                       ParseNode* decorator);
+
+  [[nodiscard]] bool emitCreateDecoratorAccessObject();
+
+  [[nodiscard]] bool emitCheckIsUndefined();
+
+  [[nodiscard]] bool emitCheckIsCallable();
+
+  [[nodiscard]] bool emitCreateAddInitializerFunction();
+
+  [[nodiscard]] bool emitCreateDecoratorContextObject(Kind kind, ParseNode* key,
+                                                      bool isStatic,
+                                                      TokenPos pos);
+};
+
+} /* namespace js::frontend */
+
+#endif /* frontend_DecoratorEmitter_h */