Function createDevRenderContext

packages/runtime-core/src/componentPublicInstance.ts:647–670

(instance: ComponentInternalInstance)

// for easier console inspection. In prod mode it will be an empty object so
// these properties definitions can be skipped.
export function createDevRenderContext(instance: ComponentInternalInstance) {
  const target: Record<string, any> = {}

  // expose internal instance for proxy handlers
  Object.defineProperty(target, `_`, {
    configurable: true,
    enumerable: false,
    get: () => instance,
  })

  // expose public properties
  Object.keys(publicPropertiesMap).forEach(key => {
    Object.defineProperty(target, key, {
      configurable: true,
      enumerable: false,
      get: () => publicPropertiesMap[key](instance),
      // intercepted by the proxy so no need for implementation,
      // but needed to prevent set errors
      set: NOOP,
    })
  })

  return target as ComponentRenderContext
}

// dev only
export function exposePropsOnRenderContext(