From 4729f0b65cd0f6d3140551a969a564913ffb9972 Mon Sep 17 00:00:00 2001
From: Ben McCann <322311+benmccann@users.noreply.github.com>
Date: Mon, 13 Sep 2021 18:48:30 -0700
Subject: [PATCH] fix: invalid transformer export (#75)

---
 rollup.config.cjs                  |  2 +-
 src/__tests__/transformer.test.cjs |  4 ++--
 src/__tests__/transformer.test.js  |  4 ++--
 src/transformer.js                 | 12 +++++-------
 4 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/rollup.config.cjs b/rollup.config.cjs
index e416926..94971cf 100644
--- a/rollup.config.cjs
+++ b/rollup.config.cjs
@@ -14,7 +14,7 @@ module.exports = [
     output: {
       file: 'dist/transformer.cjs',
       format: 'cjs',
-      exports: 'named'
+      exports: 'default'
     },
     external,
     plugins: [
diff --git a/src/__tests__/transformer.test.cjs b/src/__tests__/transformer.test.cjs
index 096f3cd..ec13fae 100644
--- a/src/__tests__/transformer.test.cjs
+++ b/src/__tests__/transformer.test.cjs
@@ -1,11 +1,11 @@
 const { readFileSync } = require('fs')
 const { resolve } = require('path')
-const { createTransformer } = require('../../dist/transformer.cjs')
+const transformer = require('../../dist/transformer.cjs')
 
 const runTransformer = (filename, options) => {
   const path = require.resolve(`./fixtures/${filename}.svelte`)
   const source = readFileSync(path).toString()
-  const result = createTransformer().process(source, path, { transformerConfig: options })
+  const result = transformer.process(source, path, { transformerConfig: options })
   expect(result.code).toBeDefined()
   expect(result.code).toContain('SvelteComponent')
   expect(result.map).toBeDefined()
diff --git a/src/__tests__/transformer.test.js b/src/__tests__/transformer.test.js
index f700393..075ede5 100644
--- a/src/__tests__/transformer.test.js
+++ b/src/__tests__/transformer.test.js
@@ -3,7 +3,7 @@ import { dirname } from 'path'
 import { fileURLToPath } from 'url'
 import { jest } from '@jest/globals'
 
-import { processAsync } from '../../dist/transformer.mjs'
+import transformer from '../../dist/transformer.mjs'
 
 // Node API __dirname is missing in ESM
 export const __dirname = dirname(fileURLToPath(import.meta.url))
@@ -11,7 +11,7 @@ export const __dirname = dirname(fileURLToPath(import.meta.url))
 const runTransformer = async (filename, options) => {
   const path = `${__dirname}/fixtures/${filename}.svelte`
   const source = readFileSync(path).toString()
-  const result = await processAsync(source, path, { transformerConfig: options })
+  const result = await transformer.processAsync(source, path, { transformerConfig: options })
   expect(result.code).toBeDefined()
   expect(result.code).toContain('SvelteComponent')
   expect(result.map).toBeDefined()
diff --git a/src/transformer.js b/src/transformer.js
index 2e33c57..c424cce 100644
--- a/src/transformer.js
+++ b/src/transformer.js
@@ -10,7 +10,7 @@ const dynamicImport = async (filename) => import(pathToFileURL(filename))
 /**
  * Jest will only call this method when running in ESM mode.
  */
-export const processAsync = async (source, filename, jestOptions) => {
+const processAsync = async (source, filename, jestOptions) => {
   const options = jestOptions?.transformerConfig ?? {}
   const { preprocess, rootMode } = options
 
@@ -33,7 +33,7 @@ export const processAsync = async (source, filename, jestOptions) => {
  * Starts a new process, so is higher overhead than processAsync.
  * However, Jest calls this method in CJS mode.
  */
-const processSync = (source, filename, jestOptions) => {
+const process = (source, filename, jestOptions) => {
   const options = jestOptions?.transformerConfig ?? {}
   const { preprocess, rootMode, maxBuffer, showConsoleLog } = options
   if (!preprocess) {
@@ -80,9 +80,7 @@ const compiler = (format, options = {}, filename, processedCode, processedMap) =
   }
 }
 
-export const createTransformer = () => ({
-  process: processSync,
+export default {
+  process,
   processAsync
-})
-
-export default createTransformer
+}