Added transformAST method.

lib/index.js

@@ -8,7 +8,7 @@ var fs = require('fs'),
 	ReplacerMap = require('./replacerMap'),
 	whenWriteFile = Promise.wrap(fs.writeFile);
 
-exports.transform = function (inOptions) {
+exports.transformAST = function (inOptions) {
 	var options = parseOptions(inOptions),
 		map = new ReplacerMap(options),
 		replacer = map.get(options.input);
@@ -18,21 +18,33 @@ exports.transform = function (inOptions) {
 				deps: options.deps,
 				modules: modules,
 				replacer: replacer
-			}),
-			expr = (
+			});
+
+		return {
+			ast: b.program([b.expressionStatement(
 				options.exports
 				? b.callExpression(astConsts.tmpl.umdWrapper(options), [b.literal(options.exports), factoryExpr])
 				: b.callExpression(factoryExpr, [])
-			),
-			result = generate(b.program([b.expressionStatement(expr)]), {
-				sourceMap: !!options.map,
-				comment: options.comments,
-				sourceMapWithCode: true
-			}),
-			whenOut;
+			)]),
+			options: options
+		};
+	});
+};
+
+exports.transform = function (inOptions) {
+	return exports.transformAST(inOptions).then(function (result) {
+		var options = result.options;
+
+		result = generate(result.ast, {
+			sourceMap: !!options.map,
+			comment: options.comments,
+			sourceMapWithCode: true
+		});
 
 		result.options = options;
 
+		var whenOut;
+
 		if (!options.dryRun) {
 			if (options.map) {
 				result.code += '\n//# sourceMappingURL=' + pathUtils.relative(pathUtils.std.dirname(options.output), options.map);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pure-cjs",
-  "version": "1.14.0",
+  "version": "1.15.0",
   "description": "Pure minimalistic CommonJS builder",
   "bin": "./bin/pure-cjs.js",
   "main": "./lib/index.js",