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[ddc] Migrate stack trace utilities to null safety

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Issue: https://github.com/dart-lang/sdk/issues/46617
Change-Id: Idfd614e3bcc4e3e8ae1597d69c97d007b7efd306
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/250351
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
This commit is contained in:
Nicholas Shahan 2022-07-19 21:37:34 +00:00 committed by Commit Bot
parent 4c6fcad188
commit 017401cb35
2 changed files with 14 additions and 16 deletions
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13
pkg/dev_compiler/web/source_map_stack_trace.dart
View file

@ -2,8 +2,7 @@
// 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.
// @dart = 2.9
import 'package:collection/collection.dart' show IterableNullableExtension;
import 'package:path/path.dart' as p;
import 'package:source_maps/source_maps.dart';
import 'package:stack_trace/stack_trace.dart';
@ -17,7 +16,7 @@ import 'package:stack_trace/stack_trace.dart';
/// [roots] are the paths (usually `http:` URI strings) that DDC applications
/// are served from. This is used to identify sdk and package URIs.
StackTrace mapStackTrace(Mapping sourceMap, StackTrace stackTrace,
{List<String> roots}) {
{required List<String?> roots}) {
if (stackTrace is Chain) {
return Chain(stackTrace.traces.map((trace) {
return Trace.from(mapStackTrace(sourceMap, trace, roots: roots));
@ -35,8 +34,8 @@ StackTrace mapStackTrace(Mapping sourceMap, StackTrace stackTrace,
// Subtract 1 because stack traces use 1-indexed lines and columns and
// source maps uses 0-indexed.
var span = sourceMap.spanFor(frame.line - 1, column - 1,
uri: frame.uri?.toString());
var span = sourceMap.spanFor(frame.line! - 1, column - 1,
uri: frame.uri.toString());
// If we can't find a source span, ignore the frame. It's probably something
// internal that the user doesn't care about.
@ -68,8 +67,8 @@ StackTrace mapStackTrace(Mapping sourceMap, StackTrace stackTrace,
}
return Frame(Uri.parse(sourceUrl), span.start.line + 1,
span.start.column + 1, _prettifyMember(frame.member));
}).where((frame) => frame != null));
span.start.column + 1, _prettifyMember(frame.member!));
}).whereNotNull());
}
final escapedPipe = '\$124';

17
pkg/dev_compiler/web/stack_trace_mapper.dart
View file

@ -2,8 +2,6 @@
// 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.
// @dart = 2.9
/// Standalone utility that manages loading source maps for all Dart scripts
/// on the page compiled with DDC.
///
@ -49,7 +47,7 @@ typedef SetSourceMapProvider = void Function(SourceMapProvider);
@anonymous
class DartStackTraceUtility {
external factory DartStackTraceUtility(
{StackTraceMapper mapper, SetSourceMapProvider setSourceMapProvider});
{StackTraceMapper? mapper, SetSourceMapProvider? setSourceMapProvider});
}
@JS('JSON.stringify')
@ -70,8 +68,8 @@ class LazyMapping extends Mapping {
List toJson() => _bundle.toJson();
@override
SourceMapSpan spanFor(int line, int column,
{Map<String, SourceFile> files, String uri}) {
SourceMapSpan? spanFor(int line, int column,
{Map<String, SourceFile>? files, String? uri}) {
if (uri == null) {
throw ArgumentError.notNull('uri');
}
@ -91,24 +89,25 @@ class LazyMapping extends Mapping {
// TODO(jacobr): we shouldn't have to filter out invalid sourceUrl entries
// here.
if (span == null || span.start.sourceUrl == null) return null;
var pathSegments = span.start.sourceUrl.pathSegments;
var pathSegments = span.start.sourceUrl!.pathSegments;
if (pathSegments.isNotEmpty && pathSegments.last == 'null') return null;
return span;
}
}
LazyMapping _mapping;
LazyMapping? _mapping;
List<String> roots = rootDirectories.map((s) => '$s').toList();
String mapper(String rawStackTrace) {
if (_mapping == null) {
var mapping = _mapping;
if (mapping == null) {
// This should not happen if the user has waited for the ReadyCallback
// to start the application.
throw StateError('Source maps are not done loading.');
}
var trace = Trace.parse(rawStackTrace);
return mapStackTrace(_mapping, trace, roots: roots).toString();
return mapStackTrace(mapping, trace, roots: roots).toString();
}
void setSourceMapProvider(SourceMapProvider provider) {