Make dart2js work on Windows.

dart/lib/compiler/implementation/dart2js.dart

Index: dart/lib/compiler/implementation/dart2js.dart
diff --git a/dart/lib/compiler/implementation/dart2js.dart b/dart/lib/compiler/implementation/dart2js.dart
index 2b729f578224a9fbc7e8ff6daffda9630afbbd9f..fb84a947503d18192946a28c076d82507634c0e6 100644
--- a/dart/lib/compiler/implementation/dart2js.dart
+++ b/dart/lib/compiler/implementation/dart2js.dart
@@ -11,39 +11,11 @@
 #import('../compiler.dart', prefix: 'api');
 #import('colors.dart');
 #import('source_file.dart');
-
-String relativize(Uri base, Uri uri) {
-  if (base.scheme == 'file' &&
-      base.scheme == uri.scheme &&
-      base.userInfo == uri.userInfo &&
-      base.domain == uri.domain &&
-      base.port == uri.port &&
-      uri.query == "" && uri.fragment == "") {
-    if (uri.path.startsWith(base.path)) {
-      return uri.path.substring(base.path.length);
-    }
-    List<String> uriParts = uri.path.split('/');
-    List<String> baseParts = base.path.split('/');
-    int common = 0;
-    int length = Math.min(uriParts.length, baseParts.length);
-    while (common < length && uriParts[common] == baseParts[common]) {
-      common++;
-    }
-    StringBuffer sb = new StringBuffer();
-    for (int i = common + 1; i < baseParts.length; i++) {
-      sb.add('../');
-    }
-    for (int i = common; i < uriParts.length - 1; i++) {
-      sb.add('${uriParts[i]}/');
-    }
-    sb.add('${uriParts.last()}');
-    return sb.toString();
-  }
-  return uri.toString();
-}
+#import('filenames.dart');
+#import('util/uri_extras.dart');
 
 void compile(List<String> argv) {
-  Uri cwd = new Uri(scheme: 'file', path: getCurrentDirectory());
+  Uri cwd = getCurrentDirectory();
   bool throwOnError = false;
   bool showWarnings = true;
   bool verbose = false;
@@ -59,16 +31,18 @@ void compile(List<String> argv) {
     } else if ('--verbose' == argument) {
       verbose = true;
     } else if (argument.startsWith('--library-root=')) {
-      String path = argument.substring(argument.indexOf('=') + 1);
+      String path =
+          nativeToUriPath(argument.substring(argument.indexOf('=') + 1));
       if (!path.endsWith("/")) path = "$path/";
       libraryRoot = cwd.resolve(path);
     } else if (argument.startsWith('--out=')) {
-      String path = argument.substring(argument.indexOf('=') + 1);
+      String path =
+          nativeToUriPath(argument.substring(argument.indexOf('=') + 1));
       out = cwd.resolve(path);
     } else if (argument.startsWith('-')) {
       throw new AbortLeg('unknown option $argument');
     } else {
-      arguments.add(argument);
+      arguments.add(nativeToUriPath(argument));
     }
   }
   if (arguments.isEmpty()) {
@@ -86,7 +60,7 @@ void compile(List<String> argv) {
     if (uri.scheme != 'file') {
       throw new IllegalArgumentException(uri);
     }
-    String source = readAll(uri.path);
+    String source = readAll(uriPathToNative(uri.path));
     dartBytesRead += source.length;
     sourceFiles[uri.toString()] =
       new SourceFile(relativize(cwd, uri), source);
@@ -137,7 +111,7 @@ void writeString(Uri uri, String text) {
   if (uri.scheme != 'file') {
     throw new AbortLeg('unhandled scheme ${uri.scheme}');
   }
-  var file = new File(uri.path).openSync(FileMode.WRITE);
+  var file = new File(uriPathToNative(uri.path)).openSync(FileMode.WRITE);
   file.writeStringSync(text);
   file.closeSync();
 }
@@ -150,9 +124,3 @@ String readAll(String filename) {
   file.closeSync();
   return new String.fromCharCodes(new Utf8Decoder(buffer).decodeRest());
 }
-
-String getCurrentDirectory() {
-  String dir = new File(".").fullPathSync();
-  if (dir.endsWith("/")) return dir;
-  return "$dir/";
-}