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Showing content from https://npmjs.org/package/@riotjs/compiler below:

@riotjs/compiler - npm

This compiler will not work with older Riot.js versions. It's designed to work with Riot.js > 4.0.0. For Riot.js < 4.0.0 please check the v3 branch

npm i @riotjs/compiler -D

The riot compiler can compile only strings:

import { compile } from '@riotjs/compiler'

const { code, map } = compile('<p>{hello}</p>')

You can compile your tags also using the new registerPreprocessor and registerPostprocessor APIs for example:

import {
  compiler,
  registerPreprocessor,
  registerPostprocessor,
} from '@riotjs/compiler'
import pug from 'pug'
import * as babel from '@babel/core'

// process your tag template before it will be compiled
registerPreprocessor('template', 'pug', function (code, { options }) {
  const { file } = options
  console.log('your file path is:', file)

  return {
    code: pug.render(code),
    // no sourcemap here
    map: null,
  }
})

// your compiler output will pass from here
registerPostprocessor(function (code, { options }) {
  const { file } = options
  console.log('your file path is:', file)

  // notice that babel.transformSync returns {code, map}
  return babel.transformSync(code)
})

const { code, map } = compile('<p>{hello}</p>', {
  // specify the template preprocessor
  template: 'pug',
})

@returns { code, map } output that can be used by Riot.js

string: is your tag source code
options: the options should contain the file key identifying the source of the string to compile and the template preprocessor to use as string

Note: specific preprocessors like the css or the javascript ones can be enabled simply specifying the type attribute in the tag source code for example

<my-tag>
  <style type="scss">
    // ...
  </style>
</my-tag>

registerPreprocessor(type, id, preprocessorFn) @returns Object containing all the preprocessors registered

type: either one of template css or javascript
id: unique preprocessor identifier
preprocessorFn: function receiving the code as first argument and the current options as second

registerPostprocessor(postprocessorFn) @returns Set containing all the postprocessors registered

postprocessorFn: function receiving the compiler output as first argument and the current options as second

generateTemplateFunctionFromString(string, parserOptions) @returns string with the code to execute the @riotjs/bindings template function generateSlotsFromString(string, parserOptions) @returns string with the code to generate components slots in runtime

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