Map special RPC paths

[weirdan]

Now $/cancelRequest will be resolved to $server->cancelRequest()
and $/textDocument/whatever to $server->textDocument->whatever()

/cc: @tm1000

Refs: #10035 (comment)

[tm1000]

Perfect. Thanks @weirdan

[tm1000]

@weirdan Since you're playing in the LSP. I have one request for you if you have time

I've always wanted to know how to get psalm to reindex the project without having to restart the LSP. Right now I just restart the LSP.

But I assume there must be another way to do it

This is useful in cases where composer has updated and now psalms cache is out of sync

[weirdan]

But I assume there must be another way to do it

No good way to do that I'm afraid. We run autoloaders (see below) and it probably won't work second time in the same process.

psalm/src/Psalm/Internal/Cli/LanguageServer.php

Lines 259 to 266 in 4a0a12d

	$include_collector = new IncludeCollector();
	$first_autoloader = $include_collector->runAndCollect(
	// we ignore the FQN because of a hack in scoper.inc that needs full path
	// phpcs:ignore SlevomatCodingStandard.Namespaces.ReferenceUsedNamesOnly.ReferenceViaFullyQualifiedName
	static fn(): ?\Composer\Autoload\ClassLoader =>
	CliUtils::requireAutoloaders($current_dir, isset($options['r']), $vendor_dir)
	);