[analyzer] Use QueueList by default in SourceFileEdit

Adding edits (e.g. via `dart fix --apply` are often done with
`List.insert(0, whatnot)` which takes O(n) time.
Here QueueList that can insert fast at both ends is used instead
(and we use `addFirst` instead of `insert(0)`.

On the example from
https://github.com/feinstein/google-i18n-address-dart.git we go from:

```
$ time dart fix --use-aot-snapshot --apply
[...]
249517 fixes made in 255 files.

real    3m55.810s
user    4m1.209s
sys     0m3.714s

(resetting)
$ time dart fix --use-aot-snapshot --apply
[...]
249517 fixes made in 255 files.

real    3m33.966s
user    3m37.588s
sys     0m2.058s

(resetting)
$ time dart fix --use-aot-snapshot --apply
[...]
249517 fixes made in 255 files.

real    3m36.525s
user    3m40.083s
sys     0m1.907s
```

to:

```
$ time dart fix --use-aot-snapshot --apply
[...]
249517 fixes made in 255 files.

real    0m9.970s
user    0m12.676s
sys     0m2.100s

(resetting)
$ time dart fix --use-aot-snapshot --apply
[...]
249517 fixes made in 255 files.

real    0m9.862s
user    0m12.926s
sys     0m1.797s

(resetting)
$ time dart fix --use-aot-snapshot --apply
[...]
249517 fixes made in 255 files.

real    0m9.612s
user    0m12.712s
sys     0m1.834s
```

Statistics on the `real` runtime:

```
    N           Min           Max        Median           Avg        Stddev
x   3       213.966        235.81       216.525     222.10033     11.941664
+   3         9.612          9.97         9.862     9.8146667    0.18363369
Difference at 95.0% confidence
        -212.286 +/- 19.1415
        -95.581% +/- 8.61838%
        (Student's t, pooled s = 8.44503)
```

For `lsp_many_prefer_single_quotes_violations_benchmark.dart --sizes=3200`:

Before from something like:

```
Initial analysis: 0.115654
First code action call: 0.835152
Subsequent action call 1: 0.538592
Subsequent action call 2: 0.561636
Select all code action call: 1.564402
```

After to something like:
```
Initial analysis: 0.086985
First code action call: 0.411660
Subsequent action call 1: 0.171566
Subsequent action call 2: 0.193708
Select all code action call: 1.107339
```

Statistics on 5 runs gives:

First code action call:

```
Difference at 95.0% confidence
        -0.44381 +/- 0.0261597
        -52.4602% +/- 3.09218%
        (Student's t, pooled s = 0.0179367)
```

Subsequent action call 1:

```
Difference at 95.0% confidence
        -0.381012 +/- 0.0195618
        -69.9139% +/- 3.5895%
        (Student's t, pooled s = 0.0134128)
```

Subsequent action call 2:

```
Difference at 95.0% confidence
        -0.360077 +/- 0.0265277
        -64.634% +/- 4.76173%
        (Student's t, pooled s = 0.0181891)
```

Select all code action call:

```
Difference at 95.0% confidence
        -0.405855 +/- 0.027662
        -26.7277% +/- 1.82169%
        (Student's t, pooled s = 0.0189668)
```

Change-Id: I3868afaa8c32a24c01c3a52bd8a53d5e8e4e3afe
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/427401
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
7 files changed
tree: dcace13a84c7df9dcb6f1d043d5de4ff8679e900
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. docs/
  6. pkg/
  7. runtime/
  8. samples/
  9. sdk/
  10. tests/
  11. third_party/
  12. tools/
  13. utils/
  14. .clang-format
  15. .gitattributes
  16. .gitconfig
  17. .gitignore
  18. .gn
  19. .mailmap
  20. .style.yapf
  21. AUTHORS
  22. BUILD.gn
  23. CHANGELOG.md
  24. codereview.settings
  25. CONTRIBUTING.md
  26. DEPS
  27. LICENSE
  28. OWNERS
  29. PATENT_GRANT
  30. PRESUBMIT.py
  31. pubspec.yaml
  32. README.dart-sdk
  33. README.md
  34. sdk.code-workspace
  35. sdk_args.gni
  36. sdk_packages.yaml
  37. SECURITY.md
  38. WATCHLISTS
README.md

Dart

An approachable, portable, and productive language for high-quality apps on any platform

Dart is:

  • Approachable: Develop with a strongly typed programming language that is consistent, concise, and offers modern language features like null safety and patterns.

  • Portable: Compile to ARM, x64, or RISC-V machine code for mobile, desktop, and backend. Compile to JavaScript or WebAssembly for the web.

  • Productive: Make changes iteratively: use hot reload to see the result instantly in your running app. Diagnose app issues using DevTools.

Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:

  • Dart Native: For programs targeting devices (mobile, desktop, server, and more), Dart Native includes both a Dart VM with JIT (just-in-time) compilation and an AOT (ahead-of-time) compiler for producing machine code.

  • Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).

Dart platforms illustration

License & patents

Dart is free and open source.

See LICENSE and PATENT_GRANT.

Using Dart

Visit dart.dev to learn more about the language, tools, and to find codelabs.

Browse pub.dev for more packages and libraries contributed by the community and the Dart team.

Our API reference documentation is published at api.dart.dev, based on the stable release. (We also publish docs from our beta and dev channels, as well as from the primary development branch).

Building Dart

If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.

There are more documents in our repo at docs.

Contributing to Dart

The easiest way to contribute to Dart is to file issues.

You can also contribute patches, as described in Contributing.

Roadmap

Future plans for Dart are included in the combined Dart and Flutter roadmap on the Flutter wiki.