class RubyLsp::ResponseBuilders::SemanticHighlighting

# File lib/ruby_lsp/response_builders/semantic_highlighting.rb, line 59
def initialize(encoding)
  super()
  @encoding = encoding
  @stack = T.let([], T::Array[SemanticToken])
end

# File lib/ruby_lsp/response_builders/semantic_highlighting.rb, line 66
def add_token(location, type, modifiers = [])
  length = location.end_code_units_offset(@encoding) - location.start_code_units_offset(@encoding)
  modifiers_indices = modifiers.filter_map { |modifier| TOKEN_MODIFIERS[modifier] }
  @stack.push(
    SemanticToken.new(
      start_line: location.start_line,
      start_code_unit_column: location.start_code_units_column(@encoding),
      length: length,
      type: T.must(TOKEN_TYPES[type]),
      modifier: modifiers_indices,
    ),
  )
end

# File lib/ruby_lsp/response_builders/semantic_highlighting.rb, line 90
def last
  @stack.last
end

# File lib/ruby_lsp/response_builders/semantic_highlighting.rb, line 81
def last_token_matches?(location)
  token = @stack.last
  return false unless token

  token.start_line == location.start_line &&
    token.start_code_unit_column == location.start_code_units_column(@encoding)
end

# File lib/ruby_lsp/response_builders/semantic_highlighting.rb, line 95
def response
  SemanticTokenEncoder.new.encode(@stack)
end