stealjs · Apr 27, 2021
diff --git a/‎ext/npm-extension.js
+11-11 b/‎ext/npm-extension.js
+11-11
diff --git a/‎steal-with-promises.production.js
+1-1 b/‎steal-with-promises.production.js
+1-1
diff --git a/‎steal.production.js
+1-1 b/‎steal.production.js
+1-1
diff --git a/‎test/npm/import_rewrites/dev.html
+32 b/‎test/npm/import_rewrites/dev.html
+32
diff --git a/‎test/npm/import_rewrites/node_modules/dep/main.js
+10 b/‎test/npm/import_rewrites/node_modules/dep/main.js
+10
diff --git a/‎test/npm/import_rewrites/node_modules/dep/package.json
+10 b/‎test/npm/import_rewrites/node_modules/dep/package.json
+10
diff --git a/‎test/npm/import_rewrites/node_modules/dep/util.css
+3 b/‎test/npm/import_rewrites/node_modules/dep/util.css
+3
diff --git a/‎test/npm/import_rewrites/node_modules/dep/util.js
+2 b/‎test/npm/import_rewrites/node_modules/dep/util.js
+2
diff --git a/‎test/npm/import_rewrites/package.json
+14 b/‎test/npm/import_rewrites/package.json
+14
diff --git a/‎test/npm/test.js
+4 b/‎test/npm/test.js
+4
diff --git a/‎test/steal-with-promises.production.js
+1-1 b/‎test/steal-with-promises.production.js
+1-1
@@ -15,16 +15,16 @@ exports.addExtension = function addNpmExtension(System){
 		System._extensions.push(addNpmExtension);
 	}
 
-	// Returns a replacement identifier if there is one in `.packageMap`
+	// Returns a replacement identifier if there is one in `.importRewrites`
 	// Arguments:
 	// - identifier - the identifier to be replaced
 	// - parsedParentName - parent name of the module that is doing the importing
 	// Returns `undefined` if there's no match, a string replacement if one is found
-	function getPackageMapValue(identifier, parsedParentName) {
-		if(this.packageMap && typeof this.packageMap === "object" && parsedParentName) {
-			var childPackageMapping = this.packageMap[parsedParentName.packageName]
-			if(childPackageMapping) {
-				var identifierValue = childPackageMapping[identifier];
+	function getImportRewritesValue(identifier, parsedParentName) {
+		if(this.importRewrites && typeof this.importRewrites === "object" && parsedParentName) {
+			var childimportRewrites = this.importRewrites[parsedParentName.packageName]
+			if(childimportRewrites) {
+				var identifierValue = childimportRewrites[identifier];
 				return identifierValue;
 			}
 		}
@@ -55,9 +55,9 @@ exports.addExtension = function addNpmExtension(System){
 		var parsedParentModuleName = parentName && utils.moduleName.parse(parentName);
 		var parentIsNpmModule = utils.moduleName.isNpm(parentName);
 
-		var packageMapValue = getPackageMapValue.call(this, identifier, parsedParentModuleName);
-		if(packageMapValue !== undefined) {
-			name = packageMapValue;
+		var importRewritesValue = getImportRewritesValue.call(this, identifier, parsedParentModuleName);
+		if(importRewritesValue !== undefined) {
+			name = importRewritesValue;
 		}
 
 		var nameIsRelative = utils.path.isRelative(name);
@@ -469,8 +469,8 @@ exports.addExtension = function addNpmExtension(System){
 			}
 			return newPaths;
 		},
-		packageMap: function(packageMap) {
-			return packageMap;
+		importRewrites: function(importRewrites) {
+			return importRewrites;
 		}
 	};
 
 
@@ -0,0 +1,32 @@
+<!doctype html>
+<html>
+<head>
+	<title>SystemJS tests</title>
+</head>
+<body>
+	<script>
+		window.done = window.parent.done;
+		window.assert = window.parent.assert;
+	</script>
+
+	<script src="../../../steal-with-promises.js"
+		config-main="@empty" base-url="./" main="@empty"></script>
+	<script src="../system_test_config.js"></script>
+	<script>
+
+		System.import("package.json!npm")
+			.then(function(){
+				return System.normalize("dep", "import_rewrites@1.0.0#main");
+			})
+			.then(function(){
+				assert.equal((System.importRewrites["dep"] || {})["no.namespace.util"], "./util");
+				return System.import("dep");
+			}, err => { throw err; })
+			.then(done, function(err){
+				console.error("Oh no, error!", err);
+				assert.notOk(err, "should not fail");
+				done();
+			});
+	</script>
+</body>
+</html>
@@ -0,0 +1,14 @@
+{
+  "name": "map_main",
+  "version": "0.0.0",
+  "dependencies": {
+    "dep": "1.2.2"
+  },
+  "system": {
+    "importRewrites": {
+      "dep": {
+        "no.namespace.util": "./util"
+      }
+    }
+  }
+}
@@ -299,4 +299,8 @@ QUnit.test("npm extension helpers to add/get packages", function(assert) {
 	makeIframe("steal_npm_helpers/dev.html", assert);
 });
 
+QUnit.test("importRewrites npm config", function(assert) {
+	makeIframe("import_rewrites/dev.html", assert);
+});
+
 QUnit.start();