A simple profiling instrumentation API
google / perf_api.dart Goto Github PK
View Code? Open in Web Editor NEWLicense: Apache License 2.0
License: Apache License 2.0
Class Profiler has a const constructor, yet its field 'counters' is initialized with 'new Counters()'. The language has recently changed and non-const initializers are no longer legal in classes that have a const constructor.
Dart2js has had this restriction even before it became part of the spec. I'm not sure how this code ran under dart2js.
class Profiler {
final Counters counters = new Counters(); <<< illegal due to const constructor below.
/**
Counters
cannot be const
because the map inside it is not const
.
Profiler
cannot be const
because Counters
inside it is instantiated with new
, but as explained above Counters
itself cannot be const
anyway.
Solution: drop the const
A declarative, efficient, and flexible JavaScript library for building user interfaces.
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. ๐๐๐
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google โค๏ธ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.