Ensure parse bypass is only done for files not loaded by ESM. [closes #…

…239]

package.json

@@ -65,6 +65,7 @@
     "optimize-js-plugin": "0.0.4",
     "pify": "^3.0.0",
     "pm2": "^2.8.0",
+    "postcss": "^6.0.16",
     "semver": "^5.5.0",
     "sleep": "^5.1.1",
     "trash": "^4.2.1",

src/hook/module.js

@@ -176,6 +176,7 @@ function hook(Mod, parent) {
 
       if (moduleState.parsing) {
         if (! entry.esm &&
+            ! (entry.parent && entry.parent.esm) &&
             (entry.data.package === defaultPkgInfo ||
               (entry.parent && entry.parent.data.package === defaultPkgInfo))) {
           entry.state = 3

test/fixture/scenario/postcss/.esmrc

@@ -0,0 +1,5 @@
+{
+  cjs: true,
+  debug: true,
+  esm: "all"
+}

test/fixture/scenario/postcss/index.js

@@ -0,0 +1,8 @@
+"use strict"
+
+const assert = require("assert")
+
+require = require("../../../../")(module)
+const fontFamilySystemUI = require("./main.mjs").default
+
+assert.strictEqual(typeof fontFamilySystemUI, "function")

test/fixture/scenario/postcss/main.mjs

@@ -0,0 +1,3 @@
+import postcss from "postcss"
+
+export default postcss.plugin("postcss-font-family-system-ui", () => {})

test/scenario-tests.mjs

@@ -126,6 +126,14 @@ describe("scenarios", function () {
     return exec("nyc", nycArgs)
   })
 
+  it("should work with postcss", () => {
+    const dirPath = path.resolve(testPath, "fixture/scenario/postcss")
+    const indexPath = path.resolve(dirPath, "index.js")
+
+    return Promise.resolve()
+      .then(() => exec(nodePath, [indexPath]))
+  })
+
   ;(canTestPM2 ? it : xit)(
   "should work with pm2", () => {
     const dirPath = path.resolve(testPath, "fixture/scenario/babel-register")