import { BlockNode, Node, Root } from "./ast";
import { Environment } from "./environment";
import { Token, TokenStream } from "./token";
import { Tag } from "./tag";
export interface Parser {
    parse(stream: TokenStream): Root;
    /**
     * Parse a block of tokens from the given stream until an end
     * tag is found or the end of the stream is reached.
     *
     * @param stream - A template token stream.
     * @param end - A set of tag names that indicate the end of the
     * block.
     * @param token - The token to store on the block. Defaults to the
     * current token in the stream.
     */
    parseBlock(stream: TokenStream, end: Set<string>, token?: Token): BlockNode;
    /**
     * Like {@link parseBlock}, but read until the end of the stream.
     * Useful for the `liquid` tag.
     *
     * @param stream - A template token stream.
     */
    parseLiquid(stream: TokenStream): BlockNode;
}
export declare class TemplateParser implements Parser {
    readonly environment: Environment;
    constructor(environment: Environment);
    parse(stream: TokenStream): Root;
    parseBlock(stream: TokenStream, end: Set<string>, token?: Token): BlockNode;
    parseLiquid(stream: TokenStream): BlockNode;
    protected getTag(token: Token): Tag;
    protected parseStatement(stream: TokenStream): Node;
}