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Note: This relies on PR #297 . Merge that one first.
This PR integrates the plugin querying infrastructure that has been built up by previous PRs into the salsa Database framework. The
HcEngine
trait andHcEngineImpl
struct expose a (synchronous)query(publisher, plugin, name, key)
interface, which accesses a globaltokio
runtime to call theasync fn
s for invokingHcPluginCore
functionality. Thequery
function is recursive, so the "stack" of query state is represented by actual stack frames.