/
cssAst.ts
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/
cssAst.ts
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/* tslint:disable */
/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { ParseLocation, ParseSourceSpan } from './parseUtil';
import { CssToken, CssTokenType } from './cssLexer';
export enum BlockType {
Import,
Charset,
Namespace,
Supports,
Keyframes,
MediaQuery,
Selector,
FontFace,
Page,
Document,
Viewport,
Unsupported
}
export interface CssAstVisitor {
visitCssValue(ast: CssStyleValueAst, context?: any): any;
visitCssInlineRule(ast: CssInlineRuleAst, context?: any): any;
visitCssAtRulePredicate(ast: CssAtRulePredicateAst, context?: any): any;
visitCssKeyframeRule(ast: CssKeyframeRuleAst, context?: any): any;
visitCssKeyframeDefinition(ast: CssKeyframeDefinitionAst, context?: any): any;
visitCssMediaQueryRule(ast: CssMediaQueryRuleAst, context?: any): any;
visitCssSelectorRule(ast: CssSelectorRuleAst, context?: any): any;
visitCssSelector(ast: CssSelectorAst, context?: any): any;
visitCssSimpleSelector(ast: CssSimpleSelectorAst, context?: any): any;
visitCssPseudoSelector(ast: CssPseudoSelectorAst, context?: any): any;
visitCssDefinition(ast: CssDefinitionAst, context?: any): any;
visitCssBlock(ast: CssBlockAst, context?: any): any;
visitCssStylesBlock(ast: CssStylesBlockAst, context?: any): any;
visitCssStyleSheet(ast: CssStyleSheetAst, context?: any): any;
visitCssUnknownRule(ast: CssUnknownRuleAst, context?: any): any;
visitCssUnknownTokenList(ast: CssUnknownTokenListAst, context?: any): any;
}
export abstract class CssAst {
constructor(public location: ParseSourceSpan) {}
get start(): ParseLocation {
return this.location.start;
}
get end(): ParseLocation {
return this.location.end;
}
abstract visit(visitor: CssAstVisitor, context?: any): any;
}
export class CssStyleValueAst extends CssAst {
constructor(location: ParseSourceSpan, public tokens: CssToken[], public strValue: string) {
super(location);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssValue(this);
}
}
export abstract class CssRuleAst extends CssAst {
constructor(location: ParseSourceSpan) {
super(location);
}
}
export class CssBlockRuleAst extends CssRuleAst {
constructor(
public location: ParseSourceSpan,
public type: BlockType,
public block: CssBlockAst,
public name: CssToken | null = null
) {
super(location);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssBlock(this.block, context);
}
}
export class CssKeyframeRuleAst extends CssBlockRuleAst {
constructor(location: ParseSourceSpan, name: CssToken, block: CssBlockAst) {
super(location, BlockType.Keyframes, block, name);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssKeyframeRule(this, context);
}
}
export class CssKeyframeDefinitionAst extends CssBlockRuleAst {
constructor(location: ParseSourceSpan, public steps: CssToken[], block: CssBlockAst) {
super(location, BlockType.Keyframes, block, mergeTokens(steps, ','));
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssKeyframeDefinition(this, context);
}
}
export class CssBlockDefinitionRuleAst extends CssBlockRuleAst {
constructor(
location: ParseSourceSpan,
public strValue: string,
type: BlockType,
public query: CssAtRulePredicateAst,
block: CssBlockAst
) {
super(location, type, block);
const firstCssToken: CssToken = query.tokens[0];
this.name = new CssToken(
firstCssToken.index,
firstCssToken.column,
firstCssToken.line,
CssTokenType.Identifier,
this.strValue
);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssBlock(this.block, context);
}
}
export class CssMediaQueryRuleAst extends CssBlockDefinitionRuleAst {
constructor(location: ParseSourceSpan, strValue: string, query: CssAtRulePredicateAst, block: CssBlockAst) {
super(location, strValue, BlockType.MediaQuery, query, block);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssMediaQueryRule(this, context);
}
}
export class CssAtRulePredicateAst extends CssAst {
constructor(location: ParseSourceSpan, public strValue: string, public tokens: CssToken[]) {
super(location);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssAtRulePredicate(this, context);
}
}
export class CssInlineRuleAst extends CssRuleAst {
constructor(location: ParseSourceSpan, public type: BlockType, public value: CssStyleValueAst) {
super(location);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssInlineRule(this, context);
}
}
export class CssSelectorRuleAst extends CssBlockRuleAst {
public strValue: string;
constructor(location: ParseSourceSpan, public selectors: CssSelectorAst[], block: CssBlockAst) {
super(location, BlockType.Selector, block);
this.strValue = selectors.map(selector => selector.strValue).join(',');
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssSelectorRule(this, context);
}
}
export class CssDefinitionAst extends CssAst {
constructor(location: ParseSourceSpan, public property: CssToken, public value: CssStyleValueAst) {
super(location);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssDefinition(this, context);
}
}
export abstract class CssSelectorPartAst extends CssAst {
constructor(location: ParseSourceSpan) {
super(location);
}
}
export class CssSelectorAst extends CssSelectorPartAst {
public strValue: string;
constructor(location: ParseSourceSpan, public selectorParts: CssSimpleSelectorAst[]) {
super(location);
this.strValue = selectorParts.map(part => part.strValue).join('');
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssSelector(this, context);
}
}
export class CssSimpleSelectorAst extends CssSelectorPartAst {
constructor(
location: ParseSourceSpan,
public tokens: CssToken[],
public strValue: string,
public pseudoSelectors: CssPseudoSelectorAst[],
public operator: CssToken
) {
super(location);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssSimpleSelector(this, context);
}
}
export class CssPseudoSelectorAst extends CssSelectorPartAst {
constructor(
location: ParseSourceSpan,
public strValue: string,
public name: string,
public tokens: CssToken[],
public innerSelectors: CssSelectorAst[]
) {
super(location);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssPseudoSelector(this, context);
}
}
export class CssBlockAst extends CssAst {
constructor(location: ParseSourceSpan, public entries: CssAst[]) {
super(location);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssBlock(this, context);
}
}
/*
a style block is different from a standard block because it contains
css prop:value definitions. A regular block can contain a list of Ast entries.
*/
export class CssStylesBlockAst extends CssBlockAst {
constructor(location: ParseSourceSpan, public definitions: CssDefinitionAst[]) {
super(location, definitions);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssStylesBlock(this, context);
}
}
export class CssStyleSheetAst extends CssAst {
constructor(location: ParseSourceSpan, public rules: CssAst[]) {
super(location);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssStyleSheet(this, context);
}
}
export class CssUnknownRuleAst extends CssRuleAst {
constructor(location: ParseSourceSpan, public ruleName: string, public tokens: CssToken[]) {
super(location);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssUnknownRule(this, context);
}
}
export class CssUnknownTokenListAst extends CssRuleAst {
constructor(location: ParseSourceSpan, public name: string, public tokens: CssToken[]) {
super(location);
}
visit(visitor: CssAstVisitor, context?: any): any {
return visitor.visitCssUnknownTokenList(this, context);
}
}
export function mergeTokens(tokens: CssToken[], separator: string = ''): CssToken {
const mainToken = tokens[0];
let str = mainToken.strValue;
for (let i = 1; i < tokens.length; i++) {
str += separator + tokens[i].strValue;
}
return new CssToken(mainToken.index, mainToken.column, mainToken.line, mainToken.type, str);
}