import { Token } from './token';
/**
 * Bookkeeper for inline blocks.
 *
 * Inline blocks are parenthesised expressions that are shorter than INLINE_MAX_LENGTH.
 * These blocks are formatted on a single line, unlike longer parenthesised
 * expressions where open-parenthesis causes newline and increase of indentation.
 */
export default class InlineBlock {
    level: number;
    expressionWidth: number;
    constructor(expressionWidth: number);
    /**
     * Begins inline block when lookahead through upcoming tokens determines
     * that the block would be smaller than INLINE_MAX_LENGTH.
     * @param  {Token[]} tokens Array of all tokens
     * @param  {Number} index Current token position
     */
    beginIfPossible(tokens: Token[], index: number): void;
    /**
     * Finishes current inline block.
     * There might be several nested ones.
     */
    end(): void;
    /**
     * True when inside an inline block
     */
    isActive(): boolean;
    /**
     * Check if this should be an inline parentheses block
     * Examples are "NOW()", "COUNT(*)", "int(10)", key(`somecolumn`), DECIMAL(7,2)
     */
    isInlineBlock(tokens: Token[], index: number): boolean;
    isForbiddenToken({ type, value }: Token): boolean;
}