decorators#

• Type:

type Decorators = {
  version?: 'legacy' | '2022-03';
};

Used to configure the decorators syntax.

decorators.version#

• Type: 'legacy' | '2022-03'
• Default: 'legacy'

Specify the decorator syntax version to be used.

legacy#

Rsbuild uses legacy syntax by default (Stage 1 proposal), equivalent to TypeScript's experimentalDecorators: true.

Reference documentation:

• A Complete Guide to TypeScript Decorators
• TypeScript Decorators

2022-03#

2022-03 corresponds to the Stage 3 decorator proposal, equivalent to the decorator syntax supported by TypeScript 5.0 by default.

export default {
  source: {
    decorators: {
      version: '2022-03',
    },
  },
};

Reference documentation:

• JavaScript metaprogramming with the 2022-03 decorators API
• TypeScript 5.0 Decorators