Class: RubyLsp::Requests::RangeFormatting

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

Overview

The [range formatting](microsoft.github.io/language-server-protocol/specification#textDocument_rangeFormatting) is used to format a selection or to format on paste.

Instance Method Summary collapse

Constructor Details

#initialize(global_state, document, params) ⇒ RangeFormatting

: (GlobalState global_state, RubyDocument document, Hash[Symbol, untyped] params) -> void



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# File 'lib/ruby_lsp/requests/range_formatting.rb', line 10

def initialize(global_state, document, params)
  super()
  @document = document
  @uri = document.uri #: URI::Generic
  @params = params
  @active_formatter = global_state.active_formatter #: Support::Formatter?
end

Instance Method Details

#perform ⇒ Object

: -> Array?



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

def perform
  return unless @active_formatter
  return if @document.syntax_error?

  target = @document.locate_first_within_range(@params[:range])
  return unless target

  location = target.location

  formatted_text = @active_formatter.run_range_formatting(
    @uri,
    target.slice,
    location.start_column / 2,
  )
  return unless formatted_text

  code_units_cache = @document.code_units_cache

  [
    Interface::TextEdit.new(
      range: Interface::Range.new(
        start: Interface::Position.new(
          line: location.start_line - 1,
          character: location.cached_start_code_units_column(code_units_cache),
        ),
        end: Interface::Position.new(
          line: location.end_line - 1,
          character: location.cached_end_code_units_column(code_units_cache),
        ),
      ),
      new_text: formatted_text.strip,
    ),
  ]
end