private static _goodIndentForLine(config: CursorConfiguration, model: ITokenizedModel, lineNumber: number): string {
let expectedIndentAction = LanguageConfigurationRegistry.getGoodIndentActionForLine(model, lineNumber);
if (expectedIndentAction) {
if (expectedIndentAction.action) {
let indentation = expectedIndentAction.indentation;
if (expectedIndentAction.action === IndentAction.Indent) {
indentation = TypeOperations.shiftIndent(config, indentation);
}
if (expectedIndentAction.action === IndentAction.Outdent) {
indentation = TypeOperations.unshiftIndent(config, indentation);
}
indentation = config.normalizeIndentation(indentation);
if (indentation.length === 0) {
return '';
} else {
return indentation;
}
}
else {
return expectedIndentAction.indentation;
}
}
return null;
}