import { ParseSourceSpan } from './parse_util';
export interface HtmlAst {
    sourceSpan: ParseSourceSpan;
    visit(visitor: HtmlAstVisitor, context: any): any;
}
export declare class HtmlTextAst implements HtmlAst {
    value: string;
    sourceSpan: ParseSourceSpan;
    constructor(value: string, sourceSpan: ParseSourceSpan);
    visit(visitor: HtmlAstVisitor, context: any): any;
}
export declare class HtmlExpansionAst implements HtmlAst {
    switchValue: string;
    type: string;
    cases: HtmlExpansionCaseAst[];
    sourceSpan: ParseSourceSpan;
    switchValueSourceSpan: ParseSourceSpan;
    constructor(switchValue: string, type: string, cases: HtmlExpansionCaseAst[], sourceSpan: ParseSourceSpan, switchValueSourceSpan: ParseSourceSpan);
    visit(visitor: HtmlAstVisitor, context: any): any;
}
export declare class HtmlExpansionCaseAst implements HtmlAst {
    value: string;
    expression: HtmlAst[];
    sourceSpan: ParseSourceSpan;
    valueSourceSpan: ParseSourceSpan;
    expSourceSpan: ParseSourceSpan;
    constructor(value: string, expression: HtmlAst[], sourceSpan: ParseSourceSpan, valueSourceSpan: ParseSourceSpan, expSourceSpan: ParseSourceSpan);
    visit(visitor: HtmlAstVisitor, context: any): any;
}
export declare class HtmlAttrAst implements HtmlAst {
    name: string;
    value: string;
    sourceSpan: ParseSourceSpan;
    constructor(name: string, value: string, sourceSpan: ParseSourceSpan);
    visit(visitor: HtmlAstVisitor, context: any): any;
}
export declare class HtmlElementAst implements HtmlAst {
    name: string;
    attrs: HtmlAttrAst[];
    children: HtmlAst[];
    sourceSpan: ParseSourceSpan;
    startSourceSpan: ParseSourceSpan;
    endSourceSpan: ParseSourceSpan;
    constructor(name: string, attrs: HtmlAttrAst[], children: HtmlAst[], sourceSpan: ParseSourceSpan, startSourceSpan: ParseSourceSpan, endSourceSpan: ParseSourceSpan);
    visit(visitor: HtmlAstVisitor, context: any): any;
}
export declare class HtmlCommentAst implements HtmlAst {
    value: string;
    sourceSpan: ParseSourceSpan;
    constructor(value: string, sourceSpan: ParseSourceSpan);
    visit(visitor: HtmlAstVisitor, context: any): any;
}
export interface HtmlAstVisitor {
    visitElement(ast: HtmlElementAst, context: any): any;
    visitAttr(ast: HtmlAttrAst, context: any): any;
    visitText(ast: HtmlTextAst, context: any): any;
    visitComment(ast: HtmlCommentAst, context: any): any;
    visitExpansion(ast: HtmlExpansionAst, context: any): any;
    visitExpansionCase(ast: HtmlExpansionCaseAst, context: any): any;
}
export declare function htmlVisitAll(visitor: HtmlAstVisitor, asts: HtmlAst[], context?: any): any[];