Fasta targets and loaders.

pkg/fasta/lib/src/dill/dill_loader.dart

+// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library fasta.dill_loader;
+
+import 'dart:async' show
+    Future;
+
+import 'dart:io' show
+    File;
+
+import 'package:kernel/kernel.dart' show
+    loadProgramFromBinary;
+
+import 'package:kernel/ast.dart' show
+    Library,
+    Program;
+
+import '../loader.dart' show
+    Loader;
+
+import '../target_implementation.dart' show
+    TargetImplementation;
+
+import 'dill_library_builder.dart' show
+    DillLibraryBuilder;
+
+class DillLoader extends Loader<Library> {
+  Uri input;
+
+  Program program;
+
+  DillLoader(TargetImplementation target)
+      : super(target);
+
+  DillLibraryBuilder read(Uri uri) => super.read(uri);
+
+  Future<Null> buildOutline(DillLibraryBuilder builder) async {
+    if (program == null) {
+      byteCount = await new File.fromUri(input).length();
+      setProgram(await loadProgramFromBinary(input.toFilePath()));
+    }
+    builder.library.classes.forEach(builder.addClass);
+    builder.library.procedures.forEach(builder.addMember);
+    builder.library.fields.forEach(builder.addMember);
+  }
+
+  Future<Null> buildBody(DillLibraryBuilder builder, _) {
+    return buildOutline(builder);
+  }
+
+  void setProgram(Program program) {
+    assert(input != null);
+    this.program = program;
+    for (Library library in program.libraries) {
+      read(library.importUri).library = library;
+    }
+  }
+}