Class: ImportJS::Importer

Inherits:
Object
  • Object
show all
Defined in:
lib/import_js/importer.rb

Instance Method Summary collapse

Constructor Details

#initialize(editor = ImportJS::VIMEditor.new) ⇒ Importer

Returns a new instance of Importer.



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# File 'lib/import_js/importer.rb', line 6

def initialize(editor = ImportJS::VIMEditor.new)
  @config = ImportJS::Configuration.new
  @editor = editor
end

Instance Method Details

#fix_imports ⇒ Object

Removes unused imports and adds imports for undefined variables



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# File 'lib/import_js/importer.rb', line 51

def fix_imports
  @config.refresh
  eslint_result = run_eslint_command
  undefined_variables = eslint_result.map do |line|
    /(["'])([^"']+)\1 is not defined/.match(line) do |match_data|
      match_data[2]
    end
  end.compact.uniq

  unused_variables = eslint_result.map do |line|
    /"([^"]+)" is defined but never used/.match(line) do |match_data|
      match_data[1]
    end
  end.compact.uniq

  old_imports = find_current_imports
  new_imports = old_imports[:imports].reject do |import_statement|
    unused_variables.each do |unused_variable|
      import_statement.delete_variable(unused_variable)
    end
    import_statement.empty?
  end

  undefined_variables.each do |variable|
    if js_module = find_one_js_module(variable)
      inject_js_module(variable, js_module, new_imports)
    end
  end

  replace_imports(old_imports[:newline_count],
                  new_imports,
                  old_imports[:imports_start_at])
end

#goto ⇒ Object 



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# File 'lib/import_js/importer.rb', line 39

def goto
  @config.refresh
  @timing = { start: Time.now }
  variable_name = @editor.current_word
  js_modules = find_js_modules(variable_name)
  @timing[:end] = Time.now
  return if js_modules.empty?
  js_module = resolve_one_js_module(js_modules, variable_name)
  @editor.open_file(js_module.file_path) if js_module
end

#import ⇒ Object

Finds variable under the cursor to import. By default, this is bound to ‘<Leader>j`.



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# File 'lib/import_js/importer.rb', line 13

def import
  @config.refresh
  variable_name = @editor.current_word
  if variable_name.empty?
    message(<<-EOS.split.join(' '))
      No variable to import. Place your cursor on a variable, then try
      again.
    EOS
    return
  end
  current_row, current_col = @editor.cursor

  old_buffer_lines = @editor.count_lines
  js_module = find_one_js_module(variable_name)
  return unless js_module

  old_imports = find_current_imports
  inject_js_module(variable_name, js_module, old_imports[:imports])
  replace_imports(old_imports[:newline_count],
                  old_imports[:imports],
                  old_imports[:imports_start_at])
  lines_changed = @editor.count_lines - old_buffer_lines
  return unless lines_changed
  @editor.cursor = [current_row + lines_changed, current_col]
end