Initial version of Fasta based IncrementalKernelGenerator.

pkg/front_end/lib/incremental_kernel_generator.dart

 // Copyright (c) 2017, 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.
 
 import 'dart:async';
 
 import 'package:front_end/src/base/processed_options.dart';
 import 'package:front_end/src/incremental_kernel_generator_impl.dart';
 import 'package:kernel/kernel.dart';
 
@@ skipping 38 matching lines @@
 abstract class IncrementalKernelGenerator {
   /// Creates an [IncrementalKernelGenerator] which is prepared to generate
   /// kernel representations of the program whose main library is in the given
   /// [source].
   ///
   /// No file system access is performed by this constructor; the initial
   /// "previous program state" is an empty program containing no code, and the
   /// initial set of valid sources is empty.  To obtain a kernel representation
   /// of the program, call [computeDelta].
   factory IncrementalKernelGenerator(Uri source, CompilerOptions options) =>
-      new IncrementalKernelGeneratorImpl(source, new ProcessedOptions(options));
+      new IncrementalKernelGeneratorImpl(source, options);

[Paul Berry, 2017/05/07 14:17:40]

Why are you removing ProcessedOptions?  Is there some option that isn't exposed
through its API?  If so, I would rather that we keep using ProcessedOptions and
just have it expose the option you need.

[scheglov, 2017/05/07 17:38:49]

It seemed to me initially that ProcessedOptions is too Analyzer specific.
So, I speculatively removed it.
Now, when it also has TranslateUri, it is more useful.

 
   /// Generates a kernel representation of the changes to the program, assuming
   /// that all valid sources are unchanged since the last call to
   /// [computeDelta].
   ///
   /// Source files in the set of valid sources are guaranteed not to be re-read
   /// from disk; they are assumed to be unchanged regardless of the state of the
   /// filesystem.
   ///
   /// If [watch] is not `null`, then when a source file is first used
@@ skipping 12 matching lines @@
   ///
   /// If the future completes with an error (due to errors in the compiled
   /// source code), the caller may consider the previous file state and the set
   /// of valid sources to be unchanged; this means that once the user fixes the
   /// errors, it is safe to call [computeDelta] again.
   Future<DeltaProgram> computeDelta({Future<Null> watch(Uri uri, bool used)});
 
   /// Remove any source file(s) associated with the given file path from the set
   /// of valid sources.  This guarantees that those files will be re-read on the
   /// next call to [computeDelta]).
+  ///
+  /// TODO(scheglov) Update to use URI.
   void invalidate(String path);
 
   /// Remove all source files from the set of valid sources.  This guarantees
   /// that all files will be re-read on the next call to [computeDelta].
   ///
   /// Note that this does not erase the previous program state; the next time
   /// [computeDelta] is called, if parts of the program are discovered to be
   /// unchanged, parts of the previous program state will still be re-used to
   /// speed up compilation.
   void invalidateAll();
 }