[question] - Issue with language server

[matoni109]

Hi Syntax Tree,

Heard about you on Remote Ruby, getting below after I installed the gem.

Ruby 2.5.0

Ruby Version: 2.5.0
VS Code: Version: 1.66.0 (Universal)

Starting language server...
No bundled syntax_tree, running global stree.
/Users/chriswade/.asdf/installs/ruby/2.5.0/lib/ruby/gems/2.5.0/gems/syntax_tree-2.0.1/lib/syntax_tree.rb:8:in `require_relative': /Users/chriswade/.asdf/installs/ruby/2.5.0/lib/ruby/gems/2.5.0/gems/syntax_tree-2.0.1/lib/syntax_tree/formatter.rb:12: syntax error, unexpected ... (SyntaxError)
    def initialize(source, ...)
                           ^~~

Ruby 2.7.4

Starting language server...
No bundled syntax_tree, running global stree.
/Users/chriswade/.asdf/installs/ruby/2.7.4/lib/ruby/gems/2.7.0/gems/syntax_tree-2.0.1/lib/syntax_tree/language_server.rb:28: warning: Pattern matching is experimental, and the behavior may change in future versions of Ruby!
/Users/chriswade/.asdf/installs/ruby/2.7.4/lib/ruby/gems/2.7.0/gems/syntax_tree-2.0.1/lib/syntax_tree/language_server/inlay_hints.rb:69: warning: Pattern matching is experimental, and the behavior may change in future versions of Ruby!
Requesting implicits
Requesting implicits
/Users/chriswade/.asdf/installs/ruby/2.7.4/lib/ruby/gems/2.7.0/gems/syntax_tree-2.0.1/lib/syntax_tree/language_server.rb:54:in `run': Unhandled: {:jsonrpc=>"2.0", :id=>1, :method=>"syntaxTree/implicits", :params=>{:textDocument=>{:uri=>"file:///Users/chriswade/Exercism/ruby/sieve/sieve.rb"}}} (RuntimeError)
	from /Users/chriswade/.asdf/installs/ruby/2.7.4/lib/ruby/gems/2.7.0/gems/syntax_tree-2.0.1/lib/syntax_tree/cli.rb:187:in `run'
	from /Users/chriswade/.asdf/installs/ruby/2.7.4/lib/ruby/gems/2.7.0/gems/syntax_tree-2.0.1/exe/stree:9:in `<top (required)>'
	from /Users/chriswade/.asdf/installs/ruby/2.7.4/bin/stree:25:in `load'
	from /Users/chriswade/.asdf/installs/ruby/2.7.4/bin/stree:25:in `<main>'
[Info  - 9:43:20 am] Connection to server got closed. Server will restart.

Ruby 3.0.0

Starting language server...
No bundled syntax_tree, running global stree.
Requesting implicits
/Users/chriswade/.asdf/installs/ruby/3.0.0/lib/ruby/gems/3.0.0/gems/syntax_tree-2.0.1/lib/syntax_tree/language_server.rb:54:in `run': Unhandled: {:jsonrpc=>"2.0", :id=>1, :method=>"syntaxTree/implicits", :params=>{:textDocument=>{:uri=>"file:///Users/chriswade/code/oe-qikpac-monitor/app/models/account_record.rb"}}} (RuntimeError)
	from /Users/chriswade/.asdf/installs/ruby/3.0.0/lib/ruby/gems/3.0.0/gems/syntax_tree-2.0.1/lib/syntax_tree/cli.rb:187:in `run'
	from /Users/chriswade/.asdf/installs/ruby/3.0.0/lib/ruby/gems/3.0.0/gems/syntax_tree-2.0.1/exe/stree:9:in `<top (required)>'
	from /Users/chriswade/.asdf/installs/ruby/3.0.0/bin/stree:23:in `load'
	from /Users/chriswade/.asdf/installs/ruby/3.0.0/bin/stree:23:in `<main>'
[Info  - 9:51:50 am] Connection to server got closed. Server will restart.

Thanks for putting this out :)

Regards,
Chris

[kddnewton]

Ahh sorry I updated the gem and forgot to update the vscode plugin. v0.2.1 of the plugin is out now and should have the fixes.

[matoni109]

Thanks for that @kddnewton,

Still no go for repo's with Ruby 2.5.0 as version. ( image below ), other 2 are working

Also does it need any setup like below that I was using for rubocop ?

I don't seem to get any of the light blue squiggly lines suggesting things like I was with rubocop

Should I change ruby.format & ruby.intellisense to syntax.tree ( i'm guessing this )

{
  "editor.formatOnSave": true,
  "editor.formatOnType": true,
  //ruby start
  "[ruby]": {
    "editor.defaultFormatter": "misogi.ruby-rubocop"
  },
  "ruby.useLanguageServer": true, // use the internal language server (see below)
  "ruby.format": "rubocop", // use rubocop for formatting
  "ruby.intellisense": "rubyLocate",
  "ruby.useBundler": true,
  "ruby.lint": {
    "rubocop": {
      "useBundler": true
    }
  },
  "ruby.rubocop.suppressRubocopWarnings": false,
  "ruby.rubocop.onSave": true,
  "files.associations": {
    "*.erb": "erb"
  },
  "editor.codeActionsOnSave": {
    // For ESLint
    "source.fixAll.eslint": true,
    // For TSLint
    "source.fixAll.tslint": true,
    // For Stylelint
    "source.fixAll.stylelint": true
  },
  // RUBY END

 
}

[kddnewton]

Okay, a couple of things. Totally not your fault, the docs are definitely lacking.

• First of all, this requires Ruby >= 2.7.3. So your EOL rubys aren't going to work. Sorry about that.
• You don't need any setup, except you can set "ruby.format" to false. That configuration option is provided a different extension, so you should turn off its formatting so that syntax tree can take over.
• There's no ruby.intellisense option for this plugin, since it's just for formatting.
• So you don't get diagnostics with this extension. The function of this extension is just to format, not to lint.