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Enable dart null-safety (flutter/engine#36154)

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This commit is contained in:
Ben Bergkamp 2022-09-15 14:32:59 -05:00 committed by GitHub
parent e5de00d2f2
commit c3db8d1dc8
3 changed files with 13 additions and 17 deletions
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2
engine/src/flutter/shell/platform/fuchsia/dart/compiler.dart
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@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.9
import 'dart:async';
import 'dart:io';

26
engine/src/flutter/shell/platform/fuchsia/runtime/dart/profiler_symbols/dart_profiler_symbols.dart
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@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.9
// On Fuchsia, in lieu of the ELF dynamic symbol table consumed through dladdr,
// the Dart VM profiler consumes symbols produced by this tool, which have the
// format
@ -42,11 +40,11 @@ Options:
${parser.usage};
""";
String buildIdDir;
String buildIdScript;
String nm;
String binary;
String output;
String? buildIdDir;
String? buildIdScript;
String? nm;
String? binary;
String? output;
try {
final options = parser.parse(args);
@ -82,9 +80,11 @@ class Symbol {
int offset;
int size;
String name;
Symbol({required this.offset, required this.size, required this.name});
}
Future<void> run(String buildIdDir, String buildIdScript, String nm,
Future<void> run(String? buildIdDir, String? buildIdScript, String nm,
String binary, String output) async {
final unstrippedFile = binary;
final args = ["--demangle", "--numeric-sort", "--print-size", unstrippedFile];
@ -95,7 +95,7 @@ Future<void> run(String buildIdDir, String buildIdScript, String nm,
throw "Command failed: $nm $args";
}
var symbols = new List();
var symbols = [];
var regex = new RegExp("([0-9A-Za-z]+) ([0-9A-Za-z]+) (t|T|w|W) (.*)");
for (final line in result.stdout.split("\n")) {
@ -104,12 +104,10 @@ Future<void> run(String buildIdDir, String buildIdScript, String nm,
continue; // Ignore non-text symbols.
}
final symbol = new Symbol();
// Note that capture groups start at 1.
symbol.offset = int.parse(match[1], radix: 16);
symbol.size = int.parse(match[2], radix: 16);
symbol.name = match[4].split("(")[0];
final symbol = new Symbol(offset: int.parse(match[1]!, radix: 16),
size: int.parse(match[2]!, radix: 16),
name: match[4]!.split("(")[0]);
if (symbol.name.startsWith("\$")) {
continue; // Ignore compiler/assembler temps.

2
engine/src/flutter/shell/platform/fuchsia/runtime/dart/profiler_symbols/pubspec.yaml
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@ -4,7 +4,7 @@
name: profiler_symbols
environment:
sdk: '>=2.11.0 <3.0.0'
sdk: '>=2.12.0 <3.0.0'
version: 0
description: Extracts a minimal symbols table for the Dart VM profiler
author: Dart Team <misc@dartlang.org>