public CommonCodeStyleSettings getDefaultCommonSettings() {
CommonCodeStyleSettings defaultSettings =
new CommonCodeStyleSettings(RustLanguage.INSTANCE);
CommonCodeStyleSettings.IndentOptions indentOptions =
defaultSettings.initIndentOptions();
indentOptions.USE_TAB_CHARACTER = true;
indentOptions.INDENT_SIZE = 4;
indentOptions.TAB_SIZE = 4;
indentOptions.CONTINUATION_INDENT_SIZE = 8;