Version 0.8.1.0 .
svn merge -r 28200:28280 https://dart.googlecode.com/svn/branches/bleeding_edge trunk
git-svn-id: http://dart.googlecode.com/svn/trunk@28283 260f80e4-7a28-3924-810f-c04153c831b5
diff --git a/lib/compiler/implementation/lib/web.dart b/lib/compiler/implementation/lib/web.dart
new file mode 100644
index 0000000..a75db7b
--- /dev/null
+++ b/lib/compiler/implementation/lib/web.dart
@@ -0,0 +1,9 @@
+// Copyright (c) 2012, 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("web");
+
+String htmlEscape(String text) {
+ throw "Unimplemented: web::htmlEscape(String).";
+}
diff --git a/lib/compiler/implementation/lib/web.dartp b/lib/compiler/implementation/lib/web.dartp
new file mode 100644
index 0000000..c3ba2ad
--- /dev/null
+++ b/lib/compiler/implementation/lib/web.dartp
@@ -0,0 +1,13 @@
+// Copyright (c) 2012, 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.
+
+// Patch file for dart:web
+
+/*patch*/ String htmlEscape(String text) {
+ return text.replaceAll("&", "&")
+ .replaceAll("<", "<")
+ .replaceAll(">", ">")
+ .replaceAll('"', """)
+ .replaceAll("'", "'"); // Different from original.
+}
diff --git a/lib/dom/templates/html/dartium/factoryprovider__Elements.darttemplate b/lib/dom/templates/html/dartium/factoryprovider__Elements.darttemplate
new file mode 100644
index 0000000..8fe27e5
--- /dev/null
+++ b/lib/dom/templates/html/dartium/factoryprovider__Elements.darttemplate
@@ -0,0 +1,7 @@
+// Copyright (c) 2012, 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.
+
+class _Elements {
+
+$!FACTORY_METHODS}
diff --git a/lib/dom/templates/html/dartium/impl_EventTarget.darttemplate b/lib/dom/templates/html/dartium/impl_EventTarget.darttemplate
new file mode 100644
index 0000000..1b4a00d
--- /dev/null
+++ b/lib/dom/templates/html/dartium/impl_EventTarget.darttemplate
@@ -0,0 +1,106 @@
+// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+class _EventsImpl implements Events {
+ // TODO(podivilov): add type.
+ final _ptr;
+
+ final Map<String, EventListenerList> _listenerMap;
+
+ _EventsImpl(this._ptr) : _listenerMap = <EventListenerList>{};
+
+ EventListenerList operator [](String type) {
+ return _listenerMap.putIfAbsent(type,
+ () => new _EventListenerListImpl(_ptr, type));
+ }
+}
+
+class _EventListenerWrapper {
+ final EventListener raw;
+ final Function wrapped;
+ final bool useCapture;
+ _EventListenerWrapper(this.raw, this.wrapped, this.useCapture);
+}
+
+class _EventListenerListImpl implements EventListenerList {
+ // TODO(podivilov): add type.
+ final _ptr;
+ final String _type;
+ List<_EventListenerWrapper> _wrappers;
+
+ _EventListenerListImpl(this._ptr, this._type) :
+ // TODO(jacobr): switch to <_EventListenerWrapper>[] when the VM allow it.
+ _wrappers = new List<_EventListenerWrapper>();
+
+ EventListenerList add(EventListener listener, [bool useCapture = false]) {
+ _add(listener, useCapture);
+ return this;
+ }
+
+ EventListenerList remove(EventListener listener, [bool useCapture = false]) {
+ _remove(listener, useCapture);
+ return this;
+ }
+
+ bool dispatch(Event evt) {
+ // TODO(jacobr): what is the correct behavior here. We could alternately
+ // force the event to have the expected type.
+ assert(evt.type == _type);
+ return _ptr.$dom_dispatchEvent(evt);
+ }
+
+ void _add(EventListener listener, bool useCapture) {
+ _ptr.$dom_addEventListener(_type,
+ _findOrAddWrapper(listener, useCapture),
+ useCapture);
+ }
+
+ void _remove(EventListener listener, bool useCapture) {
+ Function wrapper = _removeWrapper(listener, useCapture);
+ if (wrapper !== null) {
+ _ptr.$dom_removeEventListener(_type, wrapper, useCapture);
+ }
+ }
+
+ Function _removeWrapper(EventListener listener, bool useCapture) {
+ if (_wrappers === null) {
+ return null;
+ }
+ for (int i = 0; i < _wrappers.length; i++) {
+ _EventListenerWrapper wrapper = _wrappers[i];
+ if (wrapper.raw === listener && wrapper.useCapture == useCapture) {
+ // Order doesn't matter so we swap with the last element instead of
+ // performing a more expensive remove from the middle of the list.
+ if (i + 1 != _wrappers.length) {
+ _wrappers[i] = _wrappers.removeLast();
+ } else {
+ _wrappers.removeLast();
+ }
+ return wrapper.wrapped;
+ }
+ }
+ return null;
+ }
+
+ Function _findOrAddWrapper(EventListener listener, bool useCapture) {
+ if (_wrappers === null) {
+ _wrappers = <_EventListenerWrapper>[];
+ } else {
+ for (_EventListenerWrapper wrapper in _wrappers) {
+ if (wrapper.raw === listener && wrapper.useCapture == useCapture) {
+ return wrapper.wrapped;
+ }
+ }
+ }
+ final wrapped = (e) { listener(e); };
+ _wrappers.add(new _EventListenerWrapper(listener, wrapped, useCapture));
+ return wrapped;
+ }
+}
+
+class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
+/*
+$!MEMBERS
+*/
+}
diff --git a/lib/dom/templates/html/frog/factoryprovider__Elements.darttemplate b/lib/dom/templates/html/frog/factoryprovider__Elements.darttemplate
new file mode 100644
index 0000000..8fe27e5
--- /dev/null
+++ b/lib/dom/templates/html/frog/factoryprovider__Elements.darttemplate
@@ -0,0 +1,7 @@
+// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+class _Elements {
+
+$!FACTORY_METHODS}
diff --git a/lib/dom/templates/html/frog/impl_EventTarget.darttemplate b/lib/dom/templates/html/frog/impl_EventTarget.darttemplate
new file mode 100644
index 0000000..893f3d2
--- /dev/null
+++ b/lib/dom/templates/html/frog/impl_EventTarget.darttemplate
@@ -0,0 +1,61 @@
+// Copyright (c) 2012, 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.
+
+class _EventsImpl implements Events {
+ /* Raw event target. */
+ // TODO(jacobr): it would be nice if we could specify this as
+ // _EventTargetImpl or EventTarget
+ final Dynamic _ptr;
+
+ _EventsImpl(this._ptr);
+
+ _EventListenerListImpl operator [](String type) {
+ return new _EventListenerListImpl(_ptr, type);
+ }
+}
+
+class _EventListenerListImpl implements EventListenerList {
+
+ // TODO(jacobr): make this _EventTargetImpl
+ final Dynamic _ptr;
+ final String _type;
+
+ _EventListenerListImpl(this._ptr, this._type);
+
+ // TODO(jacobr): implement equals.
+
+ _EventListenerListImpl add(EventListener listener,
+ [bool useCapture = false]) {
+ _add(listener, useCapture);
+ return this;
+ }
+
+ _EventListenerListImpl remove(EventListener listener,
+ [bool useCapture = false]) {
+ _remove(listener, useCapture);
+ return this;
+ }
+
+ bool dispatch(Event evt) {
+ // TODO(jacobr): what is the correct behavior here. We could alternately
+ // force the event to have the expected type.
+ assert(evt.type == _type);
+ return _ptr.$dom_dispatchEvent(evt);
+ }
+
+ void _add(EventListener listener, bool useCapture) {
+ _ptr.$dom_addEventListener(_type, listener, useCapture);
+ }
+
+ void _remove(EventListener listener, bool useCapture) {
+ _ptr.$dom_removeEventListener(_type, listener, useCapture);
+ }
+}
+
+
+class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
+
+ Events get on() => new _EventsImpl(this);
+$!MEMBERS
+}
diff --git a/pkg/analyzer_experimental/lib/src/services/runtime/coverage_impl.dart b/pkg/analyzer_experimental/lib/src/services/runtime/coverage_impl.dart
new file mode 100644
index 0000000..df37f7b
--- /dev/null
+++ b/pkg/analyzer_experimental/lib/src/services/runtime/coverage_impl.dart
@@ -0,0 +1,157 @@
+// Copyright (c) 2013, 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.
+
+/// A library for code coverage support for Dart.
+library runtime.coverage_impl;
+
+import "dart:io";
+
+import "package:logging/logging.dart" as log;
+import "package:pathos/path.dart" as po;
+
+import 'package:analyzer_experimental/src/generated/source.dart' show Source;
+import 'package:analyzer_experimental/src/generated/scanner.dart' show StringScanner;
+import 'package:analyzer_experimental/src/generated/parser.dart' show Parser;
+import 'package:analyzer_experimental/src/generated/ast.dart';
+import 'package:analyzer_experimental/src/generated/engine.dart' show RecordingErrorListener;
+
+
+log.Logger logger = log.Logger.root;
+
+/// Abstract server that listens requests and serves files, may be rewriting them.
+abstract class RewriteServer {
+ String _basePath;
+ RewriteServer(this._basePath);
+ void start() {
+ HttpServer.bind("127.0.0.1", 3445).then((HttpServer server) {
+ logger.info('RewriteServer is listening at: ${server.port}.');
+ server.listen((HttpRequest request) {
+ var response = request.response;
+ // Prepare path.
+ var path = _basePath + '/' + request.uri.path;
+ path = po.normalize(path);
+ logger.info('[$path] Requested.');
+ // May be serve using just path.
+ {
+ String content = rewritePathContent(path);
+ if (content != null) {
+ logger.info('[$path] Request served by path.');
+ response.write(content);
+ response.close();
+ return;
+ }
+ }
+ // Serve from file.
+ logger.info('[$path] Serving file.');
+ var file = new File(path);
+ file.exists().then((bool found) {
+ if (found) {
+ logger.finest('[$path] Found file.');
+ file.readAsString().then((String content) {
+ logger.finest('[$path] Got file content.');
+ var sw = new Stopwatch();
+ sw.start();
+ try {
+ content = rewriteFileContent(path, content);
+ } finally {
+ sw.stop();
+ logger.fine('[$path] Rewritten in ${sw.elapsedMilliseconds} ms.');
+ }
+ response.write(content);
+ response.close();
+ });
+ } else {
+ logger.severe('[$path] File not found.');
+ response.statusCode = HttpStatus.NOT_FOUND;
+ response.close();
+ }
+ });
+ });
+ });
+ }
+
+ /// Subclasses implement this method to rewrite the provided [code] of the file with [path].
+ /// Returns some content or `null` if file content should be requested.
+ String rewritePathContent(String path);
+
+ /// Subclasses implement this method to rewrite the provided [code] of the file with [path].
+ String rewriteFileContent(String path, String code);
+}
+
+/// Server that rewrites Dart code so that it reports execution of statements and other nodes.
+class CoverageServer extends RewriteServer {
+ CoverageServer(String basePath) : super(basePath);
+
+ String rewritePathContent(String path) {
+ if (path.endsWith('__coverage_impl.dart')) {
+ String implPath = po.joinAll([
+ po.dirname(new Options().script),
+ '..', 'lib', 'src', 'services', 'runtime', 'coverage_lib.dart']);
+ return new File(implPath).readAsStringSync();
+ }
+ return null;
+ }
+
+ String rewriteFileContent(String path, String code) {
+ if (po.extension(path).toLowerCase() != '.dart') return code;
+ if (path.contains('packages')) return code;
+ var unit = _parseCode(code);
+ var injector = new StringInjector(code);
+ // Inject coverage library import.
+ var directives = unit.directives;
+ if (directives.isNotEmpty && directives[0] is LibraryDirective) {
+ injector.inject(directives[0].end, 'import "__coverage_impl.dart" as __cc;');
+ } else {
+ throw new Exception('Only single library coverage is implemented.');
+ }
+ // Insert touch() invocations.
+ unit.accept(new InsertTouchInvocationsVisitor(injector));
+ // Done.
+ code = injector.code;
+ logger.finest('[$path] Rewritten content\n$code');
+ return code;
+ }
+
+ CompilationUnit _parseCode(String code) {
+ var source = null;
+ var errorListener = new RecordingErrorListener();
+ var parser = new Parser(source, errorListener);
+ var scanner = new StringScanner(source, code, errorListener);
+ var token = scanner.tokenize();
+ return parser.parseCompilationUnit(token);
+ }
+}
+
+/// The visitor that inserts `touch` method invocations.
+class InsertTouchInvocationsVisitor extends GeneralizingASTVisitor {
+ StringInjector injector;
+ InsertTouchInvocationsVisitor(this.injector);
+ visitStatement(Statement node) {
+ super.visitStatement(node);
+ var offset = node.end;
+ if (node is Block) {
+ offset--;
+ }
+ if (node is Block && node.parent is BlockFunctionBody) return null;
+ injector.inject(offset, '__cc.touch(${node.offset});');
+ return null;
+ }
+}
+
+/// Helper for injecting fragments into some existing [String].
+class StringInjector {
+ String code;
+ int _lastOffset = -1;
+ int _delta = 0;
+ StringInjector(this.code);
+ void inject(int offset, String fragment) {
+ if (offset < _lastOffset) {
+ throw new ArgumentError('Only forward inserts are supported, was $_lastOffset given $offset');
+ }
+ _lastOffset = offset;
+ offset += _delta;
+ code = code.substring(0, offset) + fragment + code.substring(offset);
+ _delta += fragment.length;
+ }
+}
\ No newline at end of file
diff --git a/pkg/analyzer_experimental/lib/src/services/runtime/coverage_lib.dart b/pkg/analyzer_experimental/lib/src/services/runtime/coverage_lib.dart
new file mode 100644
index 0000000..945b38f
--- /dev/null
+++ b/pkg/analyzer_experimental/lib/src/services/runtime/coverage_lib.dart
@@ -0,0 +1,11 @@
+// Copyright (c) 2013, 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.
+
+/// This library is injected into the applications under coverage.
+library coverage_lib;
+
+/// Notifies that the object with the given [id] - statement, token, etc was executed.
+touch(int id) {
+ print('touch: $id');
+}
diff --git a/pkg/analyzer_experimental/lib/src/utils.dart b/pkg/analyzer_experimental/lib/src/utils.dart
new file mode 100644
index 0000000..2b5053e
--- /dev/null
+++ b/pkg/analyzer_experimental/lib/src/utils.dart
@@ -0,0 +1,22 @@
+// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+library utils;
+
+import 'dart:io';
+
+import 'package:pathos/path.dart' as pathos;
+
+/// Converts a local path string to a `file:` [Uri].
+Uri pathToFileUri(String pathString) {
+ pathString = pathos.absolute(pathString);
+ if (Platform.operatingSystem != 'windows') {
+ return Uri.parse('file://$pathString');
+ } else if (pathos.rootPrefix(pathString).startsWith('\\\\')) {
+ // Network paths become "file://hostname/path/to/file".
+ return Uri.parse('file:${pathString.replaceAll("\\", "/")}');
+ } else {
+ // Drive-letter paths become "file:///C:/path/to/file".
+ return Uri.parse('file:///${pathString.replaceAll("\\", "/")}');
+ }
+}
diff --git a/tests/html/path_observer_test.dart b/tests/html/path_observer_test.dart
new file mode 100644
index 0000000..d6db89b
--- /dev/null
+++ b/tests/html/path_observer_test.dart
@@ -0,0 +1,255 @@
+// Copyright (c) 2013, 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:html' show PathObserver;
+import 'package:unittest/html_config.dart';
+import 'package:mdv_observe/mdv_observe.dart';
+import 'package:unittest/unittest.dart';
+
+// This file contains code ported from:
+// https://github.com/rafaelw/ChangeSummary/blob/master/tests/test.js
+
+main() {
+ useHtmlConfiguration();
+ group('PathObserver', observePathTests);
+}
+
+observePath(obj, path) => new PathObserver(obj, path);
+
+sym(x) => new Symbol(x);
+
+toSymbolMap(Map map) {
+ var result = new ObservableMap.linked();
+ map.forEach((key, value) {
+ if (value is Map) value = toSymbolMap(value);
+ result[new Symbol(key)] = value;
+ });
+ return result;
+}
+
+observePathTests() {
+
+ test('Degenerate Values', () {
+ expect(observePath(null, '').value, null);
+ expect(observePath(123, '').value, 123);
+ expect(observePath(123, 'foo.bar.baz').value, null);
+
+ // shouldn't throw:
+ observePath(123, '').values.listen((_) {}).cancel();
+ observePath(null, '').value = null;
+ observePath(123, '').value = 42;
+ observePath(123, 'foo.bar.baz').value = 42;
+
+ var foo = {};
+ expect(observePath(foo, '').value, foo);
+
+ foo = new Object();
+ expect(observePath(foo, '').value, foo);
+
+ expect(observePath(foo, 'a/3!').value, null);
+ });
+
+ test('get value at path ObservableBox', () {
+ var obj = new ObservableBox(new ObservableBox(new ObservableBox(1)));
+
+ expect(observePath(obj, '').value, obj);
+ expect(observePath(obj, 'value').value, obj.value);
+ expect(observePath(obj, 'value.value').value, obj.value.value);
+ expect(observePath(obj, 'value.value.value').value, 1);
+
+ obj.value.value.value = 2;
+ expect(observePath(obj, 'value.value.value').value, 2);
+
+ obj.value.value = new ObservableBox(3);
+ expect(observePath(obj, 'value.value.value').value, 3);
+
+ obj.value = new ObservableBox(4);
+ expect(observePath(obj, 'value.value.value').value, null);
+ expect(observePath(obj, 'value.value').value, 4);
+ });
+
+
+ test('get value at path ObservableMap', () {
+ var obj = toSymbolMap({'a': {'b': {'c': 1}}});
+
+ expect(observePath(obj, '').value, obj);
+ expect(observePath(obj, 'a').value, obj[sym('a')]);
+ expect(observePath(obj, 'a.b').value, obj[sym('a')][sym('b')]);
+ expect(observePath(obj, 'a.b.c').value, 1);
+
+ obj[sym('a')][sym('b')][sym('c')] = 2;
+ expect(observePath(obj, 'a.b.c').value, 2);
+
+ obj[sym('a')][sym('b')] = toSymbolMap({'c': 3});
+ expect(observePath(obj, 'a.b.c').value, 3);
+
+ obj[sym('a')] = toSymbolMap({'b': 4});
+ expect(observePath(obj, 'a.b.c').value, null);
+ expect(observePath(obj, 'a.b').value, 4);
+ });
+
+ test('set value at path', () {
+ var obj = toSymbolMap({});
+ observePath(obj, 'foo').value = 3;
+ expect(obj[sym('foo')], 3);
+
+ var bar = toSymbolMap({ 'baz': 3 });
+ observePath(obj, 'bar').value = bar;
+ expect(obj[sym('bar')], bar);
+
+ observePath(obj, 'bar.baz.bat').value = 'not here';
+ expect(observePath(obj, 'bar.baz.bat').value, null);
+ });
+
+ test('set value back to same', () {
+ var obj = toSymbolMap({});
+ var path = observePath(obj, 'foo');
+ var values = [];
+ path.values.listen((v) { values.add(v); });
+
+ path.value = 3;
+ expect(obj[sym('foo')], 3);
+ expect(path.value, 3);
+
+ observePath(obj, 'foo').value = 2;
+ deliverChangeRecords();
+ expect(path.value, 2);
+ expect(observePath(obj, 'foo').value, 2);
+
+ observePath(obj, 'foo').value = 3;
+ deliverChangeRecords();
+ expect(path.value, 3);
+
+ deliverChangeRecords();
+ expect(values, [2, 3]);
+ });
+
+ test('Observe and Unobserve - Paths', () {
+ var arr = toSymbolMap({});
+
+ arr[sym('foo')] = 'bar';
+ var fooValues = [];
+ var fooPath = observePath(arr, 'foo');
+ var fooSub = fooPath.values.listen((v) {
+ fooValues.add(v);
+ });
+ arr[sym('foo')] = 'baz';
+ arr[sym('bat')] = 'bag';
+ var batValues = [];
+ var batPath = observePath(arr, 'bat');
+ var batSub = batPath.values.listen((v) {
+ batValues.add(v);
+ });
+
+ deliverChangeRecords();
+ expect(fooValues, ['baz']);
+ expect(batValues, []);
+
+ arr[sym('foo')] = 'bar';
+ fooSub.cancel();
+ arr[sym('bat')] = 'boo';
+ batSub.cancel();
+ arr[sym('bat')] = 'boot';
+
+ deliverChangeRecords();
+ expect(fooValues, ['baz']);
+ expect(batValues, []);
+ });
+
+ test('Path Value With Indices', () {
+ var model = toObservable([]);
+ observePath(model, '0').values.listen(expectAsync1((v) {
+ expect(v, 123);
+ }));
+ model.add(123);
+ });
+
+ test('Path Observation', () {
+ var model = new TestModel(const Symbol('a'),
+ new TestModel(const Symbol('b'),
+ new TestModel(const Symbol('c'), 'hello, world')));
+
+ var path = observePath(model, 'a.b.c');
+ var lastValue = null;
+ var sub = path.values.listen((v) { lastValue = v; });
+
+ model.value.value.value = 'hello, mom';
+
+ expect(lastValue, null);
+ deliverChangeRecords();
+ expect(lastValue, 'hello, mom');
+
+ model.value.value = new TestModel(const Symbol('c'), 'hello, dad');
+ deliverChangeRecords();
+ expect(lastValue, 'hello, dad');
+
+ model.value = new TestModel(const Symbol('b'),
+ new TestModel(const Symbol('c'), 'hello, you'));
+ deliverChangeRecords();
+ expect(lastValue, 'hello, you');
+
+ model.value.value = 1;
+ deliverChangeRecords();
+ expect(lastValue, null);
+
+ // Stop observing
+ sub.cancel();
+
+ model.value.value = new TestModel(const Symbol('c'),
+ 'hello, back again -- but not observing');
+ deliverChangeRecords();
+ expect(lastValue, null);
+
+ // Resume observing
+ sub = path.values.listen((v) { lastValue = v; });
+
+ model.value.value.value = 'hello. Back for reals';
+ deliverChangeRecords();
+ expect(lastValue, 'hello. Back for reals');
+ });
+
+ test('observe map', () {
+ var model = toSymbolMap({'a': 1});
+ var path = observePath(model, 'a');
+
+ var values = [path.value];
+ var sub = path.values.listen((v) { values.add(v); });
+ expect(values, [1]);
+
+ model[sym('a')] = 2;
+ deliverChangeRecords();
+ expect(values, [1, 2]);
+
+ sub.cancel();
+ model[sym('a')] = 3;
+ deliverChangeRecords();
+ expect(values, [1, 2]);
+ });
+}
+
+class TestModel extends ObservableBase {
+ final Symbol fieldName;
+ var _value;
+
+ TestModel(this.fieldName, [initialValue]) : _value = initialValue;
+
+ get value => _value;
+
+ void set value(newValue) {
+ _value = notifyPropertyChange(fieldName, _value, newValue);
+ }
+
+ getValueWorkaround(key) {
+ if (key == fieldName) return value;
+ return null;
+ }
+ void setValueWorkaround(key, newValue) {
+ if (key == fieldName) value = newValue;
+ }
+
+ toString() => '#<$runtimeType $fieldName: $_value>';
+}
+
+_record(key, oldValue, newValue, [kind = ChangeRecord.FIELD]) =>
+ new ChangeRecord(key, oldValue, newValue, kind: kind);
diff --git a/tests/language/reflect_core_vm_test.dart b/tests/language/reflect_core_vm_test.dart
new file mode 100644
index 0000000..d6e52f1
--- /dev/null
+++ b/tests/language/reflect_core_vm_test.dart
@@ -0,0 +1,20 @@
+// Copyright (c) 2013, 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.
+
+// Test reflection of private functions in core classes.
+
+import "package:expect/expect.dart";
+import "dart:mirrors";
+
+main() {
+ var s = "string";
+ var im = reflect(s);
+ try {
+ im.invoke(const Symbol("_setAt"), [0, 65]);
+ Expect.isTrue(false); // Unreachable.
+ } catch (e) {
+ Expect.equals(true, e is NoSuchMethodError);
+ }
+}
+
diff --git a/tools/VERSION b/tools/VERSION
index 453bc99..2a11680 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -1,4 +1,4 @@
MAJOR 0
-MINOR 1
-BUILD 2
+MINOR 8
+BUILD 1
PATCH 0
diff --git a/tools/dom/src/PathObserver.dart b/tools/dom/src/PathObserver.dart
new file mode 100644
index 0000000..bc07ac1
--- /dev/null
+++ b/tools/dom/src/PathObserver.dart
@@ -0,0 +1,288 @@
+// Copyright (c) 2013, 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.
+
+part of html;
+
+// This code is inspired by ChangeSummary:
+// https://github.com/rafaelw/ChangeSummary/blob/master/change_summary.js
+// ...which underlies MDV. Since we don't need the functionality of
+// ChangeSummary, we just implement what we need for data bindings.
+// This allows our implementation to be much simpler.
+
+// TODO(jmesserly): should we make these types stronger, and require
+// Observable objects? Currently, it is fine to say something like:
+// var path = new PathObserver(123, '');
+// print(path.value); // "123"
+//
+// Furthermore this degenerate case is allowed:
+// var path = new PathObserver(123, 'foo.bar.baz.qux');
+// print(path.value); // "null"
+//
+// Here we see that any invalid (i.e. not Observable) value will break the
+// path chain without producing an error or exception.
+//
+// Now the real question: should we do this? For the former case, the behavior
+// is correct but we could chose to handle it in the dart:html bindings layer.
+// For the latter case, it might be better to throw an error so users can find
+// the problem.
+
+
+/**
+ * A data-bound path starting from a view-model or model object, for example
+ * `foo.bar.baz`.
+ *
+ * When the [values] stream is being listened to, this will observe changes to
+ * the object and any intermediate object along the path, and send [values]
+ * accordingly. When all listeners are unregistered it will stop observing
+ * the objects.
+ *
+ * This class is used to implement [Node.bind] and similar functionality.
+ */
+// TODO(jmesserly): find a better home for this type.
+@Experimental
+class PathObserver {
+ /** The object being observed. */
+ final object;
+
+ /** The path string. */
+ final String path;
+
+ /** True if the path is valid, otherwise false. */
+ final bool _isValid;
+
+ // TODO(jmesserly): same issue here as ObservableMixin: is there an easier
+ // way to get a broadcast stream?
+ StreamController _values;
+ Stream _valueStream;
+
+ _PropertyObserver _observer, _lastObserver;
+
+ Object _lastValue;
+ bool _scheduled = false;
+
+ /**
+ * Observes [path] on [object] for changes. This returns an object that can be
+ * used to get the changes and get/set the value at this path.
+ * See [PathObserver.values] and [PathObserver.value].
+ */
+ PathObserver(this.object, String path)
+ : path = path, _isValid = _isPathValid(path) {
+
+ // TODO(jmesserly): if the path is empty, or the object is! Observable, we
+ // can optimize the PathObserver to be more lightweight.
+
+ _values = new StreamController.broadcast(sync: true,
+ onListen: _observe,
+ onCancel: _unobserve);
+
+ if (_isValid) {
+ var segments = [];
+ for (var segment in path.trim().split('.')) {
+ if (segment == '') continue;
+ var index = int.parse(segment, onError: (_) {});
+ segments.add(index != null ? index : new Symbol(segment));
+ }
+
+ // Create the property observer linked list.
+ // Note that the structure of a path can't change after it is initially
+ // constructed, even though the objects along the path can change.
+ for (int i = segments.length - 1; i >= 0; i--) {
+ _observer = new _PropertyObserver(this, segments[i], _observer);
+ if (_lastObserver == null) _lastObserver = _observer;
+ }
+ }
+ }
+
+ // TODO(jmesserly): we could try adding the first value to the stream, but
+ // that delivers the first record async.
+ /**
+ * Listens to the stream, and invokes the [callback] immediately with the
+ * current [value]. This is useful for bindings, which want to be up-to-date
+ * immediately.
+ */
+ StreamSubscription bindSync(void callback(value)) {
+ var result = values.listen(callback);
+ callback(value);
+ return result;
+ }
+
+ // TODO(jmesserly): should this be a change record with the old value?
+ // TODO(jmesserly): should this be a broadcast stream? We only need
+ // single-subscription in the bindings system, so single sub saves overhead.
+ /**
+ * Gets the stream of values that were observed at this path.
+ * This returns a single-subscription stream.
+ */
+ Stream get values => _values.stream;
+
+ /** Force synchronous delivery of [values]. */
+ void _deliverValues() {
+ _scheduled = false;
+
+ var newValue = value;
+ if (!identical(_lastValue, newValue)) {
+ _values.add(newValue);
+ _lastValue = newValue;
+ }
+ }
+
+ void _observe() {
+ if (_observer != null) {
+ _lastValue = value;
+ _observer.observe();
+ }
+ }
+
+ void _unobserve() {
+ if (_observer != null) _observer.unobserve();
+ }
+
+ void _notifyChange() {
+ if (_scheduled) return;
+ _scheduled = true;
+
+ // TODO(jmesserly): should we have a guarenteed order with respect to other
+ // paths? If so, we could implement this fairly easily by sorting instances
+ // of this class by birth order before delivery.
+ queueChangeRecords(_deliverValues);
+ }
+
+ /** Gets the last reported value at this path. */
+ get value {
+ if (!_isValid) return null;
+ if (_observer == null) return object;
+ _observer.ensureValue(object);
+ return _lastObserver.value;
+ }
+
+ /** Sets the value at this path. */
+ void set value(Object value) {
+ // TODO(jmesserly): throw if property cannot be set?
+ // MDV seems tolerant of these error.
+ if (_observer == null || !_isValid) return;
+ _observer.ensureValue(object);
+ var last = _lastObserver;
+ if (_setObjectProperty(last._object, last._property, value)) {
+ // Technically, this would get updated asynchronously via a change record.
+ // However, it is nice if calling the getter will yield the same value
+ // that was just set. So we use this opportunity to update our cache.
+ last.value = value;
+ }
+ }
+}
+
+// TODO(jmesserly): these should go away in favor of mirrors!
+_getObjectProperty(object, property) {
+ if (object is List && property is int) {
+ if (property >= 0 && property < object.length) {
+ return object[property];
+ } else {
+ return null;
+ }
+ }
+
+ // TODO(jmesserly): what about length?
+ if (object is Map) return object[property];
+
+ if (object is Observable) return object.getValueWorkaround(property);
+
+ return null;
+}
+
+bool _setObjectProperty(object, property, value) {
+ if (object is List && property is int) {
+ object[property] = value;
+ } else if (object is Map) {
+ object[property] = value;
+ } else if (object is Observable) {
+ (object as Observable).setValueWorkaround(property, value);
+ } else {
+ return false;
+ }
+ return true;
+}
+
+
+class _PropertyObserver {
+ final PathObserver _path;
+ final _property;
+ final _PropertyObserver _next;
+
+ // TODO(jmesserly): would be nice not to store both of these.
+ Object _object;
+ Object _value;
+ StreamSubscription _sub;
+
+ _PropertyObserver(this._path, this._property, this._next);
+
+ get value => _value;
+
+ void set value(Object newValue) {
+ _value = newValue;
+ if (_next != null) {
+ if (_sub != null) _next.unobserve();
+ _next.ensureValue(_value);
+ if (_sub != null) _next.observe();
+ }
+ }
+
+ void ensureValue(object) {
+ // If we're observing, values should be up to date already.
+ if (_sub != null) return;
+
+ _object = object;
+ value = _getObjectProperty(object, _property);
+ }
+
+ void observe() {
+ if (_object is Observable) {
+ assert(_sub == null);
+ _sub = (_object as Observable).changes.listen(_onChange);
+ }
+ if (_next != null) _next.observe();
+ }
+
+ void unobserve() {
+ if (_sub == null) return;
+
+ _sub.cancel();
+ _sub = null;
+ if (_next != null) _next.unobserve();
+ }
+
+ void _onChange(List<ChangeRecord> changes) {
+ for (var change in changes) {
+ // TODO(jmesserly): what to do about "new Symbol" here?
+ // Ideally this would only preserve names if the user has opted in to
+ // them being preserved.
+ // TODO(jmesserly): should we drop observable maps with String keys?
+ // If so then we only need one check here.
+ if (change.changes(_property)) {
+ value = _getObjectProperty(_object, _property);
+ _path._notifyChange();
+ return;
+ }
+ }
+ }
+}
+
+// From: https://github.com/rafaelw/ChangeSummary/blob/master/change_summary.js
+
+const _pathIndentPart = r'[$a-z0-9_]+[$a-z0-9_\d]*';
+final _pathRegExp = new RegExp('^'
+ '(?:#?' + _pathIndentPart + ')?'
+ '(?:'
+ '(?:\\.' + _pathIndentPart + ')'
+ ')*'
+ r'$', caseSensitive: false);
+
+final _spacesRegExp = new RegExp(r'\s');
+
+bool _isPathValid(String s) {
+ s = s.replaceAll(_spacesRegExp, '');
+
+ if (s == '') return true;
+ if (s[0] == '.') return false;
+ return _pathRegExp.hasMatch(s);
+}
diff --git a/utils/pub/pub.Makefile b/utils/pub/pub.Makefile
new file mode 100644
index 0000000..c1d628d
--- /dev/null
+++ b/utils/pub/pub.Makefile
@@ -0,0 +1,6 @@
+# This file is generated by gyp; do not edit.
+
+export builddir_name ?= dart/utils/pub/out
+.PHONY: all
+all:
+ $(MAKE) -C ../.. pub
diff --git a/utils/pub/pub.target.mk b/utils/pub/pub.target.mk
new file mode 100644
index 0000000..6362e21
--- /dev/null
+++ b/utils/pub/pub.target.mk
@@ -0,0 +1,38 @@
+# This file is generated by gyp; do not edit.
+
+TOOLSET := target
+TARGET := pub
+### Rules for action "generate_pub_snapshot":
+quiet_cmd_dart_utils_pub_pub_gyp_pub_target_generate_pub_snapshot = ACTION dart_utils_pub_pub_gyp_pub_target_generate_pub_snapshot $@
+cmd_dart_utils_pub_pub_gyp_pub_target_generate_pub_snapshot = LD_LIBRARY_PATH=$(builddir)/lib.host:$(builddir)/lib.target:$$LD_LIBRARY_PATH; export LD_LIBRARY_PATH; cd utils/pub; mkdir -p $(obj)/gen; "$(builddir)/dart" "--package-root=$(builddir)/packages/" "--generate-script-snapshot=$(obj)/gen/pub.dart.snapshot" ../../sdk/lib/_internal/pub/bin/pub.dart
+
+$(obj)/gen/pub.dart.snapshot: obj := $(abs_obj)
+$(obj)/gen/pub.dart.snapshot: builddir := $(abs_builddir)
+$(obj)/gen/pub.dart.snapshot: TOOLSET := $(TOOLSET)
+$(obj)/gen/pub.dart.snapshot: $(builddir)/dart sdk/lib/_internal/pub/bin/pub.dart sdk/lib/_internal/pub/lib/src/http.dart sdk/lib/_internal/pub/lib/src/utils.dart sdk/lib/_internal/pub/lib/src/command_deploy.dart sdk/lib/_internal/pub/lib/src/git_source.dart sdk/lib/_internal/pub/lib/src/command_install.dart sdk/lib/_internal/pub/lib/src/exit_codes.dart sdk/lib/_internal/pub/lib/src/command.dart sdk/lib/_internal/pub/lib/src/source_registry.dart sdk/lib/_internal/pub/lib/src/pubspec.dart sdk/lib/_internal/pub/lib/src/command_help.dart sdk/lib/_internal/pub/lib/src/oauth2.dart sdk/lib/_internal/pub/lib/src/command_uploader.dart sdk/lib/_internal/pub/lib/src/error_group.dart sdk/lib/_internal/pub/lib/src/directory_tree.dart sdk/lib/_internal/pub/lib/src/sdk.dart sdk/lib/_internal/pub/lib/src/dart.dart sdk/lib/_internal/pub/lib/src/hosted_source.dart sdk/lib/_internal/pub/lib/src/version.dart sdk/lib/_internal/pub/lib/src/git.dart sdk/lib/_internal/pub/lib/src/io.dart sdk/lib/_internal/pub/lib/src/system_cache.dart sdk/lib/_internal/pub/lib/src/safe_http_server.dart sdk/lib/_internal/pub/lib/src/command_update.dart sdk/lib/_internal/pub/lib/src/command_version.dart sdk/lib/_internal/pub/lib/src/validator.dart sdk/lib/_internal/pub/lib/src/command_cache.dart sdk/lib/_internal/pub/lib/src/source.dart sdk/lib/_internal/pub/lib/src/command_lish.dart sdk/lib/_internal/pub/lib/src/package.dart sdk/lib/_internal/pub/lib/src/log.dart sdk/lib/_internal/pub/lib/src/entrypoint.dart sdk/lib/_internal/pub/lib/src/lock_file.dart sdk/lib/_internal/pub/lib/src/path_source.dart sdk/lib/_internal/pub/lib/src/validator/name.dart sdk/lib/_internal/pub/lib/src/validator/size.dart sdk/lib/_internal/pub/lib/src/validator/pubspec_field.dart sdk/lib/_internal/pub/lib/src/validator/compiled_dartdoc.dart sdk/lib/_internal/pub/lib/src/validator/directory.dart sdk/lib/_internal/pub/lib/src/validator/utf8_readme.dart sdk/lib/_internal/pub/lib/src/validator/dependency.dart sdk/lib/_internal/pub/lib/src/validator/license.dart sdk/lib/_internal/pub/lib/src/validator/lib.dart sdk/lib/_internal/pub/lib/src/solver/version_solver.dart sdk/lib/_internal/pub/lib/src/solver/backtracking_solver.dart sdk/lib/_internal/pub/test/command_line_config.dart sdk/lib/_internal/pub/test/version_test.dart sdk/lib/_internal/pub/test/io_test.dart sdk/lib/_internal/pub/test/pub_cache_test.dart sdk/lib/_internal/pub/test/test_pub.dart sdk/lib/_internal/pub/test/lock_file_test.dart sdk/lib/_internal/pub/test/real_version_test.dart sdk/lib/_internal/pub/test/utils_test.dart sdk/lib/_internal/pub/test/directory_tree_test.dart sdk/lib/_internal/pub/test/unknown_source_test.dart sdk/lib/_internal/pub/test/dev_dependency_test.dart sdk/lib/_internal/pub/test/package_files_test.dart sdk/lib/_internal/pub/test/pubspec_test.dart sdk/lib/_internal/pub/test/pub_test.dart sdk/lib/_internal/pub/test/pub_install_and_update_test.dart sdk/lib/_internal/pub/test/version_solver_test.dart sdk/lib/_internal/pub/test/descriptor.dart sdk/lib/_internal/pub/test/error_group_test.dart sdk/lib/_internal/pub/test/pub_uploader_test.dart sdk/lib/_internal/pub/test/lish/cloud_storage_upload_doesnt_redirect_test.dart sdk/lib/_internal/pub/test/lish/cloud_storage_upload_provides_an_error_test.dart sdk/lib/_internal/pub/test/lish/upload_form_provides_an_error_test.dart sdk/lib/_internal/pub/test/lish/utils.dart sdk/lib/_internal/pub/test/lish/package_creation_provides_a_malformed_error_test.dart sdk/lib/_internal/pub/test/lish/package_validation_has_a_warning_and_is_canceled_test.dart sdk/lib/_internal/pub/test/lish/force_cannot_be_combined_with_dry_run_test.dart sdk/lib/_internal/pub/test/lish/upload_form_fields_is_not_a_map_test.dart sdk/lib/_internal/pub/test/lish/package_creation_provides_invalid_json_test.dart sdk/lib/_internal/pub/test/lish/package_creation_provides_a_malformed_success_test.dart sdk/lib/_internal/pub/test/lish/package_creation_provides_an_error_test.dart sdk/lib/_internal/pub/test/lish/upload_form_is_missing_url_test.dart sdk/lib/_internal/pub/test/lish/force_does_not_publish_if_there_are_errors_test.dart sdk/lib/_internal/pub/test/lish/upload_form_is_missing_fields_test.dart sdk/lib/_internal/pub/test/lish/package_validation_has_an_error_test.dart sdk/lib/_internal/pub/test/lish/preview_package_validation_has_a_warning_test.dart sdk/lib/_internal/pub/test/lish/package_validation_has_a_warning_and_continues_test.dart sdk/lib/_internal/pub/test/lish/force_publishes_if_tests_are_no_warnings_or_errors_test.dart sdk/lib/_internal/pub/test/lish/preview_package_validation_has_no_warnings_test.dart sdk/lib/_internal/pub/test/lish/archives_and_uploads_a_package_test.dart sdk/lib/_internal/pub/test/lish/upload_form_url_is_not_a_string_test.dart sdk/lib/_internal/pub/test/lish/force_publishes_if_there_are_warnings_test.dart sdk/lib/_internal/pub/test/lish/upload_form_fields_has_a_non_string_value_test.dart sdk/lib/_internal/pub/test/lish/upload_form_provides_invalid_json_test.dart sdk/lib/_internal/pub/test/update/git/do_not_update_if_unneeded_test.dart sdk/lib/_internal/pub/test/update/git/update_to_incompatible_pubspec_test.dart sdk/lib/_internal/pub/test/update/git/update_to_nonexistent_pubspec_test.dart sdk/lib/_internal/pub/test/update/git/update_locked_test.dart sdk/lib/_internal/pub/test/update/git/update_one_locked_test.dart sdk/lib/_internal/pub/test/update/hosted/unlock_dependers_test.dart sdk/lib/_internal/pub/test/update/hosted/unlock_if_necessary_test.dart sdk/lib/_internal/pub/test/update/hosted/update_removed_constraints_test.dart sdk/lib/_internal/pub/test/validator/license_test.dart sdk/lib/_internal/pub/test/validator/utils.dart sdk/lib/_internal/pub/test/validator/pubspec_field_test.dart sdk/lib/_internal/pub/test/validator/dependency_test.dart sdk/lib/_internal/pub/test/validator/directory_test.dart sdk/lib/_internal/pub/test/validator/name_test.dart sdk/lib/_internal/pub/test/validator/lib_test.dart sdk/lib/_internal/pub/test/validator/size_test.dart sdk/lib/_internal/pub/test/validator/utf8_readme_test.dart sdk/lib/_internal/pub/test/validator/compiled_dartdoc_test.dart sdk/lib/_internal/pub/test/oauth2/utils.dart sdk/lib/_internal/pub/test/oauth2/with_server_rejected_credentials_authenticates_again_test.dart sdk/lib/_internal/pub/test/oauth2/with_a_server_rejected_refresh_token_authenticates_again_test.dart sdk/lib/_internal/pub/test/oauth2/with_no_credentials_authenticates_and_saves_credentials_test.dart sdk/lib/_internal/pub/test/oauth2/with_an_expired_credentials_refreshes_and_saves_test.dart sdk/lib/_internal/pub/test/oauth2/with_a_pre_existing_credentials_does_not_authenticate_test.dart sdk/lib/_internal/pub/test/oauth2/with_an_expired_credentials_without_a_refresh_token_authenticates_again_test.dart sdk/lib/_internal/pub/test/oauth2/with_a_malformed_credentials_authenticates_again_test.dart sdk/lib/_internal/pub/test/descriptor/tar.dart sdk/lib/_internal/pub/test/descriptor/git.dart sdk/lib/_internal/pub/test/hosted/fail_gracefully_on_missing_package_test.dart sdk/lib/_internal/pub/test/hosted/offline_test.dart sdk/lib/_internal/pub/test/hosted/fail_gracefully_on_url_resolve_test.dart sdk/lib/_internal/pub/test/hosted/remove_removed_transitive_dependency_test.dart sdk/lib/_internal/pub/test/hosted/remove_removed_dependency_test.dart sdk/lib/_internal/pub/test/install/relative_symlink_test.dart sdk/lib/_internal/pub/test/install/broken_symlink_test.dart sdk/lib/_internal/pub/test/install/switch_source_test.dart sdk/lib/_internal/pub/test/install/git/check_out_transitive_test.dart sdk/lib/_internal/pub/test/install/git/unlock_if_incompatible_test.dart sdk/lib/_internal/pub/test/install/git/require_pubspec_test.dart sdk/lib/_internal/pub/test/install/git/check_out_with_trailing_slash_test.dart sdk/lib/_internal/pub/test/install/git/dependency_name_match_pubspec_test.dart sdk/lib/_internal/pub/test/install/git/check_out_branch_test.dart sdk/lib/_internal/pub/test/install/git/stay_locked_if_compatible_test.dart sdk/lib/_internal/pub/test/install/git/check_out_and_update_test.dart sdk/lib/_internal/pub/test/install/git/check_out_twice_test.dart sdk/lib/_internal/pub/test/install/git/check_out_test.dart sdk/lib/_internal/pub/test/install/git/lock_version_test.dart sdk/lib/_internal/pub/test/install/git/require_pubspec_name_test.dart sdk/lib/_internal/pub/test/install/git/check_out_revision_test.dart sdk/lib/_internal/pub/test/install/git/different_repo_name_test.dart sdk/lib/_internal/pub/test/install/hosted/unlock_if_incompatible_test.dart sdk/lib/_internal/pub/test/install/hosted/do_not_update_on_removed_constraints_test.dart sdk/lib/_internal/pub/test/install/hosted/stay_locked_test.dart sdk/lib/_internal/pub/test/install/hosted/install_test.dart sdk/lib/_internal/pub/test/install/hosted/stay_locked_if_compatible_test.dart 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pkg/scheduled_test/test/scheduled_test/wrap_async_test.dart pkg/scheduled_test/test/scheduled_test/wrap_future_test.dart pkg/scheduled_test/test/scheduled_test/signal_error_test.dart pkg/scheduled_test/test/scheduled_test/set_up_test.dart pkg/scheduled_test/test/scheduled_test/on_complete_test.dart pkg/scheduled_test/test/scheduled_test/simple_test.dart pkg/scheduled_test/test/scheduled_test/current_schedule_errors_test.dart pkg/unittest/lib/unittest.dart pkg/unittest/lib/html_individual_config.dart pkg/unittest/lib/vm_config.dart pkg/unittest/lib/html_enhanced_config.dart pkg/unittest/lib/matcher.dart pkg/unittest/lib/interactive_html_config.dart pkg/unittest/lib/mock.dart pkg/unittest/lib/html_config.dart pkg/unittest/lib/compact_vm_config.dart pkg/unittest/lib/src/expect.dart pkg/unittest/lib/src/basematcher.dart pkg/unittest/lib/src/utils.dart pkg/unittest/lib/src/string_matchers.dart pkg/unittest/lib/src/pretty_print.dart pkg/unittest/lib/src/core_matchers.dart pkg/unittest/lib/src/interfaces.dart pkg/unittest/lib/src/description.dart pkg/unittest/lib/src/future_matchers.dart pkg/unittest/lib/src/numeric_matchers.dart pkg/unittest/lib/src/iterable_matchers.dart pkg/unittest/lib/src/map_matchers.dart pkg/unittest/lib/src/config.dart pkg/unittest/lib/src/test_case.dart pkg/unittest/lib/src/operator_matchers.dart pkg/unittest/test/mock_regexp_negative_test.dart pkg/unittest/test/matchers_minified_test.dart pkg/unittest/test/matchers_test.dart pkg/unittest/test/unittest_test.dart pkg/unittest/test/matchers_unminified_test.dart pkg/unittest/test/test_common.dart pkg/unittest/test/test_utils.dart pkg/unittest/test/pretty_print_test.dart pkg/unittest/test/pretty_print_minified_test.dart pkg/unittest/test/instance_test.dart pkg/unittest/test/pretty_print_unminified_test.dart pkg/unittest/test/mock_test.dart pkg/unittest/test/mock_stepwise_negative_test.dart pkg/args/lib/args.dart pkg/args/lib/src/parser.dart pkg/args/lib/src/usage.dart pkg/args/test/args_test.dart pkg/args/test/usage_test.dart pkg/args/test/command_test.dart pkg/args/test/parse_test.dart pkg/args/example/test_runner.dart pkg/source_maps/lib/span.dart pkg/source_maps/lib/source_maps.dart pkg/source_maps/lib/parser.dart pkg/source_maps/lib/builder.dart pkg/source_maps/lib/printer.dart pkg/source_maps/lib/src/utils.dart pkg/source_maps/lib/src/vlq.dart pkg/source_maps/test/vlq_test.dart pkg/source_maps/test/run.dart pkg/source_maps/test/builder_test.dart pkg/source_maps/test/utils_test.dart pkg/source_maps/test/common.dart pkg/source_maps/test/parser_test.dart pkg/source_maps/test/printer_test.dart pkg/source_maps/test/span_test.dart pkg/source_maps/test/end2end_test.dart FORCE_DO_CMD
+ $(call do_cmd,dart_utils_pub_pub_gyp_pub_target_generate_pub_snapshot)
+
+all_deps += $(obj)/gen/pub.dart.snapshot
+action_dart_utils_pub_pub_gyp_pub_target_generate_pub_snapshot_outputs := $(obj)/gen/pub.dart.snapshot
+
+
+### Rules for final target.
+# Build our special outputs first.
+$(obj).target/utils/pub/pub.stamp: | $(action_dart_utils_pub_pub_gyp_pub_target_generate_pub_snapshot_outputs)
+
+# Preserve order dependency of special output on deps.
+$(action_dart_utils_pub_pub_gyp_pub_target_generate_pub_snapshot_outputs): | $(builddir)/dart $(obj).target/pkg/pkg_packages.stamp
+
+$(obj).target/utils/pub/pub.stamp: TOOLSET := $(TOOLSET)
+$(obj).target/utils/pub/pub.stamp: $(builddir)/dart $(obj).target/pkg/pkg_packages.stamp FORCE_DO_CMD
+ $(call do_cmd,touch)
+
+all_deps += $(obj).target/utils/pub/pub.stamp
+# Add target alias
+.PHONY: pub
+pub: $(obj).target/utils/pub/pub.stamp
+
+# Add target alias to "all" target.
+.PHONY: all
+all: pub
+
diff --git a/utils/pub/solver/greedy_solver.dart b/utils/pub/solver/greedy_solver.dart
new file mode 100644
index 0000000..e664ea2
--- /dev/null
+++ b/utils/pub/solver/greedy_solver.dart
@@ -0,0 +1,556 @@
+// Copyright (c) 2012, 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.
+
+/// Attempts to resolve a set of version constraints for a package dependency
+/// graph and select an appropriate set of best specific versions for all
+/// dependent packages. It works iteratively and tries to reach a stable
+/// solution where the constraints of all dependencies are met. If it fails to
+/// reach a solution after a certain number of iterations, it assumes the
+/// dependency graph is unstable and reports and error.
+///
+/// There are two fundamental operations in the process of iterating over the
+/// graph:
+///
+/// 1. Changing the selected concrete version of some package. (This includes
+/// adding and removing a package too, which is considering changing the
+/// version to or from "none".) In other words, a node has changed.
+/// 2. Changing the version constraint that one package places on another. In
+/// other words, and edge has changed.
+///
+/// Both of these events have a corresponding (potentional) async operation and
+/// roughly cycle back and forth between each other. When we change the version
+/// of package changes, we asynchronously load the pubspec for the new version.
+/// When that's done, we compare the dependencies of the new version versus the
+/// old one. For everything that differs, we change those constraints between
+/// this package and that dependency.
+///
+/// When a constraint on a package changes, we re-calculate the overall
+/// constraint on that package. I.e. with a shared dependency, we intersect all
+/// of the constraints that its depending packages place on it. If that overall
+/// constraint changes (say from "<3.0.0" to "<2.5.0"), then the currently
+/// picked version for that package may fall outside of the new constraint. If
+/// that happens, we find the new best version that meets the updated constraint
+/// and then the change the package to use that version. That cycles back up to
+/// the beginning again.
+library version_solver1;
+
+import 'dart:async';
+import 'dart:collection' show Queue;
+import 'dart:math' as math;
+
+import '../lock_file.dart';
+import '../log.dart' as log;
+import '../package.dart';
+import '../source.dart';
+import '../source_registry.dart';
+import '../version.dart';
+import 'version_solver.dart';
+
+class GreedyVersionSolver extends VersionSolver {
+ final _packages = <String, DependencyNode>{};
+ final _work = new Queue<WorkItem>();
+ int _numIterations = 0;
+
+ GreedyVersionSolver(SourceRegistry sources, Package root, LockFile lockFile,
+ List<String> useLatest)
+ : super(sources, root, lockFile, useLatest);
+
+ /// The non-backtracking solver always only tries one solution.
+ int get attemptedSolutions => 1;
+
+ void forceLatestVersion(String package) {
+ // TODO(nweiz): How do we want to detect and handle unknown dependencies
+ // here?
+ getDependency(package).useLatestVersion = true;
+ }
+
+ Future<List<PackageId>> runSolver() {
+ // Kick off the work by adding the root package at its concrete version to
+ // the dependency graph.
+ enqueue(new AddConstraint('(entrypoint)', new PackageRef.root(root)));
+
+ Future processNextWorkItem(_) {
+ while (true) {
+ // Stop if we are done.
+ if (_work.isEmpty) return new Future.value(buildResults());
+
+ // If we appear to be stuck in a loop, then we probably have an unstable
+ // graph, bail. We guess this based on a rough heuristic that it should
+ // only take a certain number of steps to solve a graph with a given
+ // number of connections.
+ // TODO(rnystrom): These numbers here are magic and arbitrary. Tune
+ // when we have a better picture of real-world package topologies.
+ _numIterations++;
+ if (_numIterations > math.max(50, _packages.length * 5)) {
+ throw new CouldNotSolveException();
+ }
+
+ // Run the first work item.
+ var future = _work.removeFirst().process(this);
+
+ // If we have an async operation to perform, chain the loop to resume
+ // when it's done. Otherwise, just loop synchronously.
+ if (future != null) {
+ return future.then(processNextWorkItem);
+ }
+ }
+ }
+
+ return processNextWorkItem(null);
+ }
+
+ void enqueue(WorkItem work) {
+ _work.add(work);
+ }
+
+ DependencyNode getDependency(String package) {
+ // There can be unused dependencies in the graph, so just create an empty
+ // one if needed.
+ _packages.putIfAbsent(package, () => new DependencyNode(package));
+ return _packages[package];
+ }
+
+ /// Sets the best selected version of [package] to [version].
+ void setVersion(String package, Version version) {
+ _packages[package].version = version;
+ }
+
+ /// Returns the most recent version of [dependency] that satisfies all of its
+ /// version constraints.
+ Future<Version> getBestVersion(DependencyNode dependency) {
+ return cache.getVersions(dependency.name,
+ dependency.source, dependency.description).then((versions) {
+ var best = null;
+ for (var ref in versions) {
+ if (dependency.useLatestVersion ||
+ dependency.constraint.allows(ref.version)) {
+ if (best == null || ref.version > best) best = ref.version;
+ }
+ }
+
+ // TODO(rnystrom): Better exception.
+ if (best == null) {
+ if (tryUnlockDepender(dependency)) return null;
+ throw new NoVersionException(dependency.name, dependency.constraint,
+ dependency.toList());
+ } else if (!dependency.constraint.allows(best)) {
+ if (tryUnlockDepender(dependency)) return null;
+ throw new CouldNotUpdateException(
+ dependency.name, dependency.constraint, best);
+ }
+
+ return best;
+ });
+ }
+
+ /// Looks for a package that depends (transitively) on [dependency] and has
+ /// its version locked in the lockfile. If one is found, enqueues an
+ /// [UnlockPackage] work item for it and returns true. Otherwise, returns
+ /// false.
+ ///
+ /// This does a breadth-first search; immediate dependers will be unlocked
+ /// first, followed by transitive dependers.
+ bool tryUnlockDepender(DependencyNode dependency, [Set<String> seen]) {
+ if (seen == null) seen = new Set();
+ // Avoid an infinite loop if there are circular dependencies.
+ if (seen.contains(dependency.name)) return false;
+ seen.add(dependency.name);
+
+ for (var dependerName in dependency.dependers) {
+ var depender = getDependency(dependerName);
+ var locked = lockFile.packages[dependerName];
+ if (locked != null && depender.version == locked.version &&
+ depender.source.name == locked.source.name) {
+ enqueue(new UnlockPackage(depender));
+ return true;
+ }
+ }
+
+ return dependency.dependers.map(getDependency).any((subdependency) =>
+ tryUnlockDepender(subdependency, seen));
+ }
+
+ List<PackageId> buildResults() {
+ return _packages.values
+ .where((dep) => dep.isDependedOn)
+ .map(_dependencyToPackageId)
+ .toList();
+ }
+
+ PackageId _dependencyToPackageId(DependencyNode dep) {
+ var description = dep.description;
+
+ // If the lockfile contains a fully-resolved description for the package,
+ // use that. This allows e.g. Git to ensure that the same commit is used.
+ var lockedPackage = lockFile.packages[dep.name];
+ if (lockedPackage != null && lockedPackage.version == dep.version &&
+ lockedPackage.source.name == dep.source.name &&
+ dep.source.descriptionsEqual(
+ description, lockedPackage.description)) {
+ description = lockedPackage.description;
+ }
+
+ return new PackageId(dep.name, dep.source, dep.version, description);
+ }
+}
+
+/// The constraint solver works by iteratively processing a queue of work items.
+/// Each item is a single atomic change to the dependency graph. Handling them
+/// in a queue lets us handle asynchrony (resolving versions requires
+/// information from servers) as well as avoid deeply nested recursion.
+abstract class WorkItem {
+ /// Processes this work item. Returns a future that completes when the work is
+ /// done. If `null` is returned, that means the work has completed
+ /// synchronously and the next item can be started immediately.
+ Future process(GreedyVersionSolver solver);
+}
+
+/// The best selected version for a package has changed to [version]. If the
+/// previous version of the package is `null`, that means the package is being
+/// added to the graph. If [version] is `null`, it is being removed.
+class ChangeVersion implements WorkItem {
+ /// The name of the package whose version is being changed.
+ final String package;
+
+ /// The source of the package whose version is changing.
+ final Source source;
+
+ /// The description identifying the package whose version is changing.
+ final description;
+
+ /// The new selected version.
+ final Version version;
+
+ ChangeVersion(this.package, this.source, this.description, this.version);
+
+ Future process(GreedyVersionSolver solver) {
+ log.fine("Changing $package to version $version.");
+
+ var dependency = solver.getDependency(package);
+ var oldVersion = dependency.version;
+ solver.setVersion(package, version);
+
+ // The dependencies between the old and new version may be different. Walk
+ // them both and update any constraints that differ between the two.
+ return Future.wait([
+ getDependencyRefs(solver, oldVersion),
+ getDependencyRefs(solver, version)]).then((list) {
+ var oldDependencyRefs = list[0];
+ var newDependencyRefs = list[1];
+
+ for (var oldRef in oldDependencyRefs.values) {
+ if (newDependencyRefs.containsKey(oldRef.name)) {
+ // The dependency is in both versions of this package, but its
+ // constraint may have changed.
+ var newRef = newDependencyRefs.remove(oldRef.name);
+ solver.enqueue(new AddConstraint(package, newRef));
+ } else {
+ // The dependency is not in the new version of the package, so just
+ // remove its constraint.
+ solver.enqueue(new RemoveConstraint(package, oldRef.name));
+ }
+ }
+
+ // Everything that's left is a depdendency that's only in the new
+ // version of the package.
+ for (var newRef in newDependencyRefs.values) {
+ solver.enqueue(new AddConstraint(package, newRef));
+ }
+ });
+ }
+
+ /// Get the dependencies at [version] of the package being changed.
+ Future<Map<String, PackageRef>> getDependencyRefs(VersionSolver solver,
+ Version version) {
+ // If there is no version, it means no package, so no dependencies.
+ if (version == null) {
+ return new Future<Map<String, PackageRef>>.value(<String, PackageRef>{});
+ }
+
+ var id = new PackageId(package, source, version, description);
+ return solver.cache.getPubspec(id).then((pubspec) {
+ var dependencies = <String, PackageRef>{};
+ for (var dependency in pubspec.dependencies) {
+ dependencies[dependency.name] = dependency;
+ }
+
+ // Include dev dependencies only from the root package.
+ if (id.isRoot) {
+ for (var dependency in pubspec.devDependencies) {
+ dependencies[dependency.name] = dependency;
+ }
+ }
+
+ return dependencies;
+ });
+ }
+}
+
+/// A constraint that a depending package places on a dependent package has
+/// changed.
+///
+/// This is an abstract class that contains logic for updating the dependency
+/// graph once a dependency has changed. Changing the dependency is the
+/// responsibility of subclasses.
+abstract class ChangeConstraint implements WorkItem {
+ Future process(GreedyVersionSolver solver);
+
+ void undo(GreedyVersionSolver solver);
+
+ Future _processChange(GreedyVersionSolver solver,
+ DependencyNode oldDependency,
+ DependencyNode newDependency) {
+ var name = newDependency.name;
+ var source = oldDependency.source != null ?
+ oldDependency.source : newDependency.source;
+ var description = oldDependency.description != null ?
+ oldDependency.description : newDependency.description;
+ var oldConstraint = oldDependency.constraint;
+ var newConstraint = newDependency.constraint;
+
+ // If the package is over-constrained, i.e. the packages depending have
+ // disjoint constraints, then try unlocking a depender that's locked by the
+ // lockfile. If there are no remaining locked dependencies, throw an error.
+ if (newConstraint != null && newConstraint.isEmpty) {
+ if (solver.tryUnlockDepender(newDependency)) {
+ undo(solver);
+ return null;
+ }
+
+ throw new DisjointConstraintException(name, newDependency.toList());
+ }
+
+ // If this constraint change didn't cause the overall constraint on the
+ // package to change, then we don't need to do any further work.
+ if (oldConstraint == newConstraint) return null;
+
+ // If the dependency has been cut free from the graph, just remove it.
+ if (!newDependency.isDependedOn) {
+ solver.enqueue(new ChangeVersion(name, source, description, null));
+ return null;
+ }
+
+ // If the dependency is on the root package, then we don't need to do
+ // anything since it's already at the best version.
+ if (name == solver.root.name) {
+ solver.enqueue(new ChangeVersion(
+ name, source, description, solver.root.version));
+ return null;
+ }
+
+ // If the dependency is on a package in the lockfile, use the lockfile's
+ // version for that package if it's valid given the other constraints.
+ var lockedPackage = solver.lockFile.packages[name];
+ if (lockedPackage != null && newDependency.source == lockedPackage.source) {
+ var lockedVersion = lockedPackage.version;
+ if (newConstraint.allows(lockedVersion)) {
+ solver.enqueue(
+ new ChangeVersion(name, source, description, lockedVersion));
+ return null;
+ }
+ }
+
+ // The constraint has changed, so see what the best version of the package
+ // that meets the new constraint is.
+ return solver.getBestVersion(newDependency).then((best) {
+ if (best == null) {
+ undo(solver);
+ } else if (newDependency.version != best) {
+ solver.enqueue(new ChangeVersion(name, source, description, best));
+ }
+ });
+ }
+}
+
+/// The constraint given by [ref] is being placed by [depender].
+class AddConstraint extends ChangeConstraint {
+ /// The package that has the dependency.
+ final String depender;
+
+ /// The package being depended on and the constraints being placed on it. The
+ /// source, version, and description in this ref are all considered
+ /// constraints on the dependent package.
+ final PackageRef ref;
+
+ AddConstraint(this.depender, this.ref);
+
+ Future process(GreedyVersionSolver solver) {
+ log.fine("Adding $depender's constraint $ref.");
+
+ var dependency = solver.getDependency(ref.name);
+ var oldDependency = dependency.clone();
+ dependency.placeConstraint(depender, ref);
+ return _processChange(solver, oldDependency, dependency);
+ }
+
+ void undo(GreedyVersionSolver solver) {
+ solver.getDependency(ref.name).removeConstraint(depender);
+ }
+}
+
+/// [depender] is no longer placing a constraint on [dependent].
+class RemoveConstraint extends ChangeConstraint {
+ /// The package that was placing a constraint on [dependent].
+ String depender;
+
+ /// The package that was being depended on.
+ String dependent;
+
+ /// The constraint that was removed.
+ PackageRef _removed;
+
+ RemoveConstraint(this.depender, this.dependent);
+
+ Future process(GreedyVersionSolver solver) {
+ log.fine("Removing $depender's constraint ($_removed) on $dependent.");
+
+ var dependency = solver.getDependency(dependent);
+ var oldDependency = dependency.clone();
+ _removed = dependency.removeConstraint(depender);
+ return _processChange(solver, oldDependency, dependency);
+ }
+
+ void undo(GreedyVersionSolver solver) {
+ solver.getDependency(dependent).placeConstraint(depender, _removed);
+ }
+}
+
+/// [package]'s version is no longer constrained by the lockfile.
+class UnlockPackage implements WorkItem {
+ /// The package being unlocked.
+ DependencyNode package;
+
+ UnlockPackage(this.package);
+
+ Future process(GreedyVersionSolver solver) {
+ log.fine("Unlocking ${package.name}.");
+
+ solver.lockFile.packages.remove(package.name);
+ return solver.getBestVersion(package).then((best) {
+ if (best == null) return null;
+ solver.enqueue(new ChangeVersion(
+ package.name, package.source, package.description, best));
+ });
+ }
+}
+
+/// Describes one [Package] in the [DependencyGraph] and keeps track of which
+/// packages depend on it and what constraints they place on it.
+class DependencyNode {
+ /// The name of the this dependency's package.
+ final String name;
+
+ /// The [PackageRefs] that represent constraints that depending packages have
+ /// placed on this one.
+ final Map<String, PackageRef> _refs;
+
+ /// The currently-selected best version for this dependency.
+ Version version;
+
+ /// Whether this dependency should always select the latest version.
+ bool useLatestVersion = false;
+
+ /// Gets whether or not any other packages are currently depending on this
+ /// one. If `false`, then it means this package is not part of the dependency
+ /// graph and should be omitted.
+ bool get isDependedOn => !_refs.isEmpty;
+
+ /// The names of all the packages that depend on this dependency.
+ Iterable<String> get dependers => _refs.keys;
+
+ /// Gets the overall constraint that all packages are placing on this one.
+ /// If no packages have a constraint on this one (which can happen when this
+ /// package is in the process of being added to the graph), returns `null`.
+ VersionConstraint get constraint {
+ if (_refs.isEmpty) return null;
+ return new VersionConstraint.intersection(
+ _refs.values.map((ref) => ref.constraint));
+ }
+
+ /// The source of this dependency's package.
+ Source get source {
+ var canonical = _canonicalRef();
+ if (canonical == null) return null;
+ return canonical.source;
+ }
+
+ /// The description of this dependency's package.
+ get description {
+ var canonical = _canonicalRef();
+ if (canonical == null) return null;
+ return canonical.description;
+ }
+
+ /// Return the PackageRef that has the canonical source and description for
+ /// this package. If any dependency is on the root package, that will be used;
+ /// otherwise, it will be the source and description that all dependencies
+ /// agree upon.
+ PackageRef _canonicalRef() {
+ if (_refs.isEmpty) return null;
+ var refs = _refs.values;
+ for (var ref in refs) {
+ if (ref.isRoot) return ref;
+ }
+ return refs.first;
+ }
+
+ DependencyNode(this.name)
+ : _refs = <String, PackageRef>{};
+
+ DependencyNode._clone(DependencyNode other)
+ : name = other.name,
+ version = other.version,
+ _refs = new Map<String, PackageRef>.from(other._refs);
+
+ /// Creates a copy of this dependency.
+ DependencyNode clone() => new DependencyNode._clone(this);
+
+ /// Places [ref] as a constraint from [package] onto this.
+ void placeConstraint(String package, PackageRef ref) {
+ var requiredDepender = _requiredDepender();
+ if (requiredDepender != null) {
+ var required = _refs[requiredDepender];
+ if (required.source.name != ref.source.name) {
+ throw new SourceMismatchException(name, [
+ new Dependency(requiredDepender, required),
+ new Dependency(package, ref)]);
+ } else if (!required.descriptionEquals(ref)) {
+ throw new DescriptionMismatchException(name, [
+ new Dependency(requiredDepender, required),
+ new Dependency(package, ref)]);
+ }
+ }
+
+ _refs[package] = ref;
+ }
+
+ /// Returns the name of a package whose constraint source and description
+ /// all other constraints must match. Returns null if there are no
+ /// requirements on new constraints.
+ String _requiredDepender() {
+ if (_refs.isEmpty) return null;
+
+ var dependers = _refs.keys.toList();
+ if (dependers.length == 1) {
+ var depender = dependers[0];
+ if (_refs[depender].isRoot) return null;
+ return depender;
+ }
+
+ return dependers[1];
+ }
+
+ /// Removes the constraint from [package] onto this.
+ PackageRef removeConstraint(String package) => _refs.remove(package);
+
+ /// Converts this to a list of [Dependency] objects like the error types
+ /// expect.
+ List<Dependency> toList() {
+ var result = <Dependency>[];
+ _refs.forEach((name, ref) {
+ result.add(new Dependency(name, ref));
+ });
+ return result;
+ }
+}
