BREAKING: Pass parameters to transformer.transform as object

Reviewed By: jeanlauliac

Differential Revision: D5037155

fbshipit-source-id: fbd18bd62254d7e1522f659ea62055e66748a951

packager/src/ModuleGraph/worker/__tests__/transform-module-test.js

@@ -95,10 +95,16 @@ describe('transforming JS modules:', () => {
       const variants = {dev: {dev: true}, prod: {dev: false}};
 
       transformModule(sourceCode, options(variants), () => {
-        expect(transformer.transform)
-          .toBeCalledWith(sourceCode, filename, {...defaults, ...variants.dev});
-        expect(transformer.transform)
-          .toBeCalledWith(sourceCode, filename, {...defaults, ...variants.prod});
+        expect(transformer.transform).toBeCalledWith({
+            filename,
+            options: {...defaults, ...variants.dev},
+            src: sourceCode,
+          });
+        expect(transformer.transform).toBeCalledWith({
+            filename,
+            options: {...defaults, ...variants.prod},
+            src: sourceCode,
+          });
         done();
       });
     },

packager/src/ModuleGraph/worker/transform-module.js

@@ -70,11 +70,11 @@ function transformModule(
   const {filename, transformer, variants = defaultVariants} = options;
   const tasks = {};
   Object.keys(variants).forEach(name => {
-    tasks[name] = asyncify(() => transformer.transform(
-        code,
+    tasks[name] = asyncify(() => transformer.transform({
         filename,
-        {...defaultTransformOptions, ...variants[name]},
-      )
+        options: {...defaultTransformOptions, ...variants[name]},
+        src: code,
+      })
     );
   });