protocol library

Names shared by the instrumenter (which writes them into probes), the runtime package (which sets them in the app) and the DevTools extension (which calls the service extensions).

This library has no dependencies, so the runtime package can import it without pulling in the parser.

Classes

ProbeUniforms

The debug uniforms every probe declares, after the user's uniforms.

ServiceEvents

The events the runtime package posts on the VM service's Extension stream.

ServiceExtensions

The service extensions the runtime package registers in debug mode.

Enums

ProbeMode

What the probe writes to its output.

Constants

defaultProbeAsset → const String

Where the probe shader lives in the app, as an asset key. The app must register it under flutter: shaders: in its pubspec.

protocolVersion → const int

The version of the app ↔ extension protocol. Bump it when a service extension or a probe uniform changes meaning.