Class: RubyLsp::Requests::ShowSyntaxTree

Inherits:
Request
  • Object
show all
Defined in:
lib/ruby_lsp/requests/show_syntax_tree.rb

Overview

Show syntax tree is a custom [LSP request](microsoft.github.io/language-server-protocol/specification#requestMessage) that displays the AST for the current document or for the current selection in a new tab.

Instance Method Summary collapse

Constructor Details

#initialize(document, range) ⇒ ShowSyntaxTree

: (RubyDocument document, Hash[Symbol, untyped]? range) -> void



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# File 'lib/ruby_lsp/requests/show_syntax_tree.rb', line 11

def initialize(document, range)
  super()
  @document = document
  @range = range
  @tree = document.ast #: Prism::ProgramNode
end

Instance Method Details

#perform ⇒ Object

: -> String



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# File 'lib/ruby_lsp/requests/show_syntax_tree.rb', line 20

def perform
  return ast_for_range if @range

  output_string = +""
  PP.pp(@tree, output_string)
  output_string
end