From 35047445feb491f59057191f77fc49b78c3db0bf Mon Sep 17 00:00:00 2001
From: Marc Porciuncula <marcporciuncula@gmail.com>
Date: Thu, 28 Dec 2017 02:05:32 +1100
Subject: [PATCH] Expose sourceFileName to plugins

---
 readme.md     | 1 +
 src/_utils.js | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/readme.md b/readme.md
index d6ffc082..9a201fc1 100644
--- a/readme.md
+++ b/readme.md
@@ -553,6 +553,7 @@ The `options` object has the following shape:
     vendorPrefixes: boolean,
     isGlobal: boolean,
     filename: ?string, // defined only when styled-jsx/babel is used via Babel CLI,
+    sourceFileName: string, // the original Javascript file the CSS block was in
     location: { // the original location of the CSS block in the JavaScript file
       start: {
         line: number,
diff --git a/src/_utils.js b/src/_utils.js
index 7b6a02ac..0ec5d7d2 100644
--- a/src/_utils.js
+++ b/src/_utils.js
@@ -524,7 +524,8 @@ export const processCss = (stylesInfo, options) => {
     vendorPrefixes,
     sourceMaps: useSourceMaps,
     isGlobal,
-    filename: fileInfo.filename
+    filename: fileInfo.filename,
+    sourceFileName: fileInfo.sourceFileName
   }
 
   let transformedCss