vue3-core/packages/vue/src/index.ts

// This package is the "full-build" that includes both the runtime
// and the compiler, and supports on-the-fly compilation of the template option.
import { compile, CompilerOptions } from '@vue/compiler-dom'
import { registerRuntimeCompiler, RenderFunction } from '@vue/runtime-dom'

function compileToFunction(
  template: string,
  options?: CompilerOptions
): RenderFunction {
  const { code } = compile(template, options)
  return new Function(code)() as RenderFunction
}

registerRuntimeCompiler(compileToFunction)

export { compileToFunction as compile }
export * from '@vue/runtime-dom'

if (__BROWSER__ && __DEV__) {
  console[console.info ? 'info' : 'log'](
    `You are running a development build of Vue.\n` +
      `Make sure to use the production build (*.prod.js) when deploying for production.`
  )
}