Speed up testing.

lib/src/run_single.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.md file.
 
 library rasta.run_single;
 
 import 'dart:async' show
     Future;
 
-import 'dart:io' show
-    IOSink;
-
-import 'package:compiler/src/elements/elements.dart' show
-    CompilationUnitElement,
-    LibraryElement;
-
 import 'package:kernel/ast.dart' as ir;
 
-import 'package:kernel/binary/ast_to_binary.dart' show
-    BinaryPrinter;
-
-import 'package:kernel/text/ast_to_text.dart' show
-    Printer;
-
-import 'package:rasta/custom_compiler.dart' show
+import '../custom_compiler.dart' show
     CustomCompiler;
 
-import 'package:rasta/kernel.dart' show
-    Kernel;
-
 import 'options.dart' show
     Options;
 
 import 'rastask.dart' show
-    Rastask,
-    openWrite;
+    Rastask;
 
 class RunSingle extends Rastask {
   RunSingle(CustomCompiler compiler, Stopwatch wallClock, Options options)
       : super(compiler, wallClock, options);
 
   Future<ir.TreeNode> run() async {
-    Duration setupDuration = wallClock.elapsed;
-
-    await compiler.setupSdk();
-
-    await compiler.setupPackages(options.input);
-
-    Kernel kernel = new Kernel(compiler);
-    ir.Library library = await kernel.loadLibrary(options.input);
-
-    bool generateLibrary = options.generateLibrary;
-    if (generateLibrary == null) {
-      generateLibrary = !kernel.hasMainMethod(options.input);
-    }
-    if (generateLibrary) {
-      kernel.processWorkQueue(targetLibrary: options.input);
-    } else {
-      if (!kernel.hasMainMethod(options.input)) {
-        throw "No main method in ${options.input}.";
-      }
-      kernel.processWorkQueue();
-    }
-
-    ir.Program program;
-    if (!generateLibrary) {
-      Iterable<ir.Procedure> mainMethods = library.procedures.where(
-          (ir.Procedure function) => function.name.name == "main");
-      program =
-          new ir.Program(new List<ir.Library>.from(kernel.libraries.values))
-              ..mainMethod = mainMethods.single;
-    }
-    compiler.printVerboseTimings(setupDuration);
-    if (options.output != null) {
-      await openWrite(options.output, (IOSink sink) {
-        BinaryPrinter printer = new BinaryPrinter(sink);
-        if (generateLibrary) {
-          printer.writeLibraryFile(library);
-        } else {
-          printer.writeProgramFile(program);
-        }
-      });
-    } else {
-      StringBuffer buffer = new StringBuffer();
-      Printer printer = new Printer(buffer);
-      if (generateLibrary) {
-        printer.writeLibraryFile(library);
-      } else {
-        printer.writeProgramFile(program);
-      }
-      print("$buffer");
-    }
-
-    if (options.dependenciesFile != null) {
-      await openWrite(options.dependenciesFile, (IOSink sink) {
-        void writeCompilationUnit(CompilationUnitElement unit) {
-          sink.write("${unit.script.resourceUri}\n");
-        }
-        kernel.forEachLibraryElement((LibraryElement library) {
-          library.compilationUnits.forEach(writeCompilationUnit);
-        });
-      });
-    }
-    return generateLibrary ? library : program;
+    await setup(globalOptions.input);
+    return runOne(globalOptions);

[kasperl, 2016/06/16 11:14:49]

Very nice.

   }
 }