| commit | 5662ce3813cc4372a22dcea91d76aed549997fc5 | [log] [tgz] |
|---|---|---|
| author | Paul Berry <paulberry@google.com> | Tue Apr 20 18:46:38 2021 +0000 |
| committer | commit-bot@chromium.org <commit-bot@chromium.org> | Tue Apr 20 18:46:38 2021 +0000 |
| tree | 21d2b5d6d57b69d57936c1c51fc050232ed38267 | |
| parent | 34e7f575d681992f96987491343e048db6c7d9bc [diff] |
Add test runner support for context messages without location information.
The CFE implementation of "why not promoted" functionality for
non-promotion of `this` doesn't associate the context message with any
location information, because there is no relevant location to cite.
For example, the output can look like this:
tests/language/why_not_promoted/this_error_test.dart:16:10: Error: Property 'isEven' cannot be accessed on 'int?' because it is potentially null.
Try accessing using ?. instead.
this.isEven;
^^^^^^
Context: 'this' can't be promoted.
See http://dart.dev/go/non-promo-this
The test runner assumes that all messages have a location, so it
wasn't picking up on this context message at all. This CL avoids the
problem by having the test runner associate any location-less context
message with the error above it.
(Note that the analyzer doesn't have this problem; all of its context
messages have locations).
Change-Id: Ied52daa8b0090f28617e7d3784233aa44dcc897a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/195301
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
Dart is:
Optimized for UI: Develop with a programming language specialized around the needs of user interface creation.
Productive: Make changes iteratively: use hot reload to see the result instantly in your running app.
Fast on all platforms: Compile to ARM & x64 machine code for mobile, desktop, and backend. Or compile to JavaScript for the web.
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 is free and open source.
See LICENSE and PATENT_GRANT.
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).
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 on our wiki.
The easiest way to contribute to Dart is to file issues.
You can also contribute patches, as described in Contributing.