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https://github.com/dart-lang/sdk
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Allow new public names in patches for the dart:_internal library.
R=paulberry@google.com, brianwilkerson@google.com BUG= Review URL: https://codereview.chromium.org/2413403002 .
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@ -21,6 +21,7 @@ import 'package:path/src/context.dart';
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* [SdkPatcher] applies patches to SDK [CompilationUnit].
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*/
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class SdkPatcher {
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bool _allowNewPublicNames;
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String _baseDesc;
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String _patchDesc;
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CompilationUnit _patchUnit;
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@ -46,8 +47,10 @@ class SdkPatcher {
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'The URI of the unit to patch must have the "dart" scheme: $uri');
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}
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List<String> uriSegments = uri.pathSegments;
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libraryUriStr = 'dart:${uriSegments.first}';
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String libraryName = uriSegments.first;
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libraryUriStr = 'dart:$libraryName';
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isLibraryDefiningUnit = uriSegments.length == 1;
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_allowNewPublicNames = libraryName == '_internal';
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}
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// Prepare the patch files to apply.
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List<String> patchPaths;
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@ -90,6 +93,9 @@ class SdkPatcher {
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}
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void _failIfPublicName(AstNode node, String name) {
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if (_allowNewPublicNames) {
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return;
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}
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if (!Identifier.isPrivateName(name)) {
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_failInPatch('contains a public declaration "$name"', node.offset);
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}
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@ -121,9 +127,9 @@ class SdkPatcher {
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patchMember.offset);
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}
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String name = fields[0].name.name;
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if (!Identifier.isPrivateName(className) &&
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if (!_allowNewPublicNames &&
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!Identifier.isPrivateName(className) &&
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!Identifier.isPrivateName(name)) {
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// TODO(scheglov) allow adding public fields into dart:_internal
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_failInPatch('contains a public field', patchMember.offset);
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}
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membersToAppend.add(patchMember);
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@ -206,7 +212,7 @@ class SdkPatcher {
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}
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} else {
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if (name == null) {
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if (!Identifier.isPrivateName(className)) {
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if (!_allowNewPublicNames && !Identifier.isPrivateName(className)) {
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_failInPatch(
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'contains an unnamed public constructor', patchMember.offset);
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}
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@ -279,7 +279,7 @@ class A {
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}, throwsArgumentError);
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}
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test_class_field_append_publiInPrivateClass() {
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test_class_field_append_publicInPrivateClass() {
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CompilationUnit unit = _doTopLevelPatching(
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r'''
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class _C {
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@ -480,6 +480,47 @@ final Map<String, LibraryInfo> LIBRARIES = const <String, LibraryInfo> {
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}, throwsArgumentError);
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}
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test_internal_allowNewPublicNames() {
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_setSdkLibraries(r'''
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final Map<String, LibraryInfo> LIBRARIES = const <String, LibraryInfo> {
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'_internal' : const LibraryInfo(
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'internal/internal.dart',
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patches: {VM_PLATFORM: ['internal/internal_patch.dart']}),
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};''');
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File file = provider.newFile(
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_p('/sdk/lib/internal/internal.dart'),
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r'''
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library dart._internal;
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class A {}
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class B {
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B();
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}
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''');
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provider.newFile(
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_p('/sdk/lib/internal/internal_patch.dart'),
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r'''
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@patch
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class B {
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int newField;
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B.newConstructor();
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int newMethod() => 1;
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}
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class NewClass {}
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int newFunction() => 2;
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''');
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_createSdk();
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Source source = file.createSource(FastUri.parse('dart:_internal'));
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CompilationUnit unit = SdkPatcher.parse(source, true, listener);
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patcher.patch(sdk, SdkLibraryImpl.VM_PLATFORM, listener, source, unit);
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_assertUnitCode(
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unit,
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'library dart._internal; class A {} '
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'class B {B(); int newField; B.newConstructor(); int newMethod() => 1;} '
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'class NewClass {} int newFunction() => 2;');
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}
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test_part() {
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String baseLibCode = r'''
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library test;
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