Files
sdk/pkg/dds
Danny Tuppeny 2f2564c99f [dds/dap] Don't untruncate toString() values in debug views
Generally we don't untrucate values in the debugger in places where there might be lots of data (such as calling `toString()` on all variables) because it can cause performance issues if the variables are huge.

If you use the "Copy value" ("clipboard") or Debug Console evaluation ("repl") we _do_ always untruncate the values.

However, this code was always untruncating when we called `toString()` on custom classes. This changes it to no longer do so, making long string values consistent between what you see as the values of fields, and the `toString()` results against a class.

Fixes https://github.com/Dart-Code/Dart-Code/issues/4986

Change-Id: Ica3c5ecfed9492ab76fbfa83d161765b3b24eb22
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/363320
Reviewed-by: Helin Shiah <helinx@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Helin Shiah <helinx@google.com>
2024-04-24 15:54:24 +00:00
..

pub package package publisher

A package used to spawn the Dart Developer Service (DDS), which is used to communicate with a Dart VM Service instance and provide extended functionality to the core VM Service Protocol.

Functionality

Existing VM Service clients can issue both HTTP, websocket, and SSE requests to a running DDS instance as if it were an instance of the VM Service itself. If a request corresponds to an RPC defined in the VM Service Protocol, DDS will forward the request and return the response from the VM Service. Requests corresponding to an RPC defined in the DDS Protocol will be handled directly by the DDS instance.

SSE Support

For certain web clients it may be preferable or required to communicate with DDS using server-sent events (SSE). DDS has an SSE handler listening for requests on /$debugHandler.

SSE and package:vm_service example

import 'package:sse/sse.dart';
import 'package:vm_service/vm_service.dart';

void main() {
  // Establish connection with DDS using SSE.
  final ddsChannel = SseClient('${ddsUri}\$debugHandler');

  // Wait for ddsChannel to be established
  await ddsChannel.onOpen.first;

  // Initialize VmService using the sink and stream from ddsChannel.
  final vmService = VmService(
    ddsChannel.stream,
    (e) => ddsChannel.sink.add(e),
  );

  // You're ready to query DDS and the VM service!
  print(await vmService.getVersion());
}