refactor(compiler): remove unused files in css_parser/ and corresponding spec tests (#37463)
Reasons for change: - css_parser, css_ast, and css_lexer are not used anywhere and there are no entry points from compiler.ts - tested by building Angular and building/running aio with build-local PR Close #37463
This commit is contained in:
Scott Wang
Andrew Kushnir
parent
d8e06f9676
commit
61792cc6f5
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@ -1,264 +0,0 @@
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/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {ParseLocation, ParseSourceSpan} from '../parse_util';
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import {CssToken, CssTokenType} from './css_lexer';
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export enum BlockType {
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Import,
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Charset,
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Namespace,
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Supports,
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Keyframes,
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MediaQuery,
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Selector,
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FontFace,
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Page,
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Document,
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Viewport,
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Unsupported
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}
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export interface CssAstVisitor {
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visitCssValue(ast: CssStyleValueAst, context?: any): any;
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visitCssInlineRule(ast: CssInlineRuleAst, context?: any): any;
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visitCssAtRulePredicate(ast: CssAtRulePredicateAst, context?: any): any;
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visitCssKeyframeRule(ast: CssKeyframeRuleAst, context?: any): any;
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visitCssKeyframeDefinition(ast: CssKeyframeDefinitionAst, context?: any): any;
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visitCssMediaQueryRule(ast: CssMediaQueryRuleAst, context?: any): any;
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visitCssSelectorRule(ast: CssSelectorRuleAst, context?: any): any;
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visitCssSelector(ast: CssSelectorAst, context?: any): any;
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visitCssSimpleSelector(ast: CssSimpleSelectorAst, context?: any): any;
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visitCssPseudoSelector(ast: CssPseudoSelectorAst, context?: any): any;
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visitCssDefinition(ast: CssDefinitionAst, context?: any): any;
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visitCssBlock(ast: CssBlockAst, context?: any): any;
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visitCssStylesBlock(ast: CssStylesBlockAst, context?: any): any;
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visitCssStyleSheet(ast: CssStyleSheetAst, context?: any): any;
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visitCssUnknownRule(ast: CssUnknownRuleAst, context?: any): any;
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visitCssUnknownTokenList(ast: CssUnknownTokenListAst, context?: any): any;
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}
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export abstract class CssAst {
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constructor(public location: ParseSourceSpan) {}
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get start(): ParseLocation {
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return this.location.start;
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}
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get end(): ParseLocation {
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return this.location.end;
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}
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abstract visit(visitor: CssAstVisitor, context?: any): any;
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}
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export class CssStyleValueAst extends CssAst {
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constructor(location: ParseSourceSpan, public tokens: CssToken[], public strValue: string) {
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super(location);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssValue(this);
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}
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}
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export abstract class CssRuleAst extends CssAst {
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constructor(location: ParseSourceSpan) {
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super(location);
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}
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}
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export class CssBlockRuleAst extends CssRuleAst {
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constructor(
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public location: ParseSourceSpan, public type: BlockType, public block: CssBlockAst,
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public name: CssToken|null = null) {
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super(location);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssBlock(this.block, context);
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}
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}
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export class CssKeyframeRuleAst extends CssBlockRuleAst {
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constructor(location: ParseSourceSpan, name: CssToken, block: CssBlockAst) {
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super(location, BlockType.Keyframes, block, name);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssKeyframeRule(this, context);
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}
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}
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export class CssKeyframeDefinitionAst extends CssBlockRuleAst {
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constructor(location: ParseSourceSpan, public steps: CssToken[], block: CssBlockAst) {
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super(location, BlockType.Keyframes, block, mergeTokens(steps, ','));
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssKeyframeDefinition(this, context);
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}
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}
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export class CssBlockDefinitionRuleAst extends CssBlockRuleAst {
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constructor(
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location: ParseSourceSpan, public strValue: string, type: BlockType,
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public query: CssAtRulePredicateAst, block: CssBlockAst) {
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super(location, type, block);
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const firstCssToken: CssToken = query.tokens[0];
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this.name = new CssToken(
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firstCssToken.index, firstCssToken.column, firstCssToken.line, CssTokenType.Identifier,
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this.strValue);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssBlock(this.block, context);
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}
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}
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export class CssMediaQueryRuleAst extends CssBlockDefinitionRuleAst {
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constructor(
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location: ParseSourceSpan, strValue: string, query: CssAtRulePredicateAst,
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block: CssBlockAst) {
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super(location, strValue, BlockType.MediaQuery, query, block);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssMediaQueryRule(this, context);
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}
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}
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export class CssAtRulePredicateAst extends CssAst {
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constructor(location: ParseSourceSpan, public strValue: string, public tokens: CssToken[]) {
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super(location);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssAtRulePredicate(this, context);
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}
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}
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export class CssInlineRuleAst extends CssRuleAst {
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constructor(location: ParseSourceSpan, public type: BlockType, public value: CssStyleValueAst) {
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super(location);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssInlineRule(this, context);
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}
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}
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export class CssSelectorRuleAst extends CssBlockRuleAst {
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public strValue: string;
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constructor(location: ParseSourceSpan, public selectors: CssSelectorAst[], block: CssBlockAst) {
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super(location, BlockType.Selector, block);
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this.strValue = selectors.map(selector => selector.strValue).join(',');
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssSelectorRule(this, context);
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}
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}
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export class CssDefinitionAst extends CssAst {
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constructor(
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location: ParseSourceSpan, public property: CssToken, public value: CssStyleValueAst) {
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super(location);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssDefinition(this, context);
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}
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}
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export abstract class CssSelectorPartAst extends CssAst {
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constructor(location: ParseSourceSpan) {
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super(location);
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}
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}
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export class CssSelectorAst extends CssSelectorPartAst {
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public strValue: string;
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constructor(location: ParseSourceSpan, public selectorParts: CssSimpleSelectorAst[]) {
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super(location);
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this.strValue = selectorParts.map(part => part.strValue).join('');
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssSelector(this, context);
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}
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}
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export class CssSimpleSelectorAst extends CssSelectorPartAst {
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constructor(
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location: ParseSourceSpan, public tokens: CssToken[], public strValue: string,
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public pseudoSelectors: CssPseudoSelectorAst[], public operator: CssToken) {
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super(location);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssSimpleSelector(this, context);
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}
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}
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export class CssPseudoSelectorAst extends CssSelectorPartAst {
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constructor(
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location: ParseSourceSpan, public strValue: string, public name: string,
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public tokens: CssToken[], public innerSelectors: CssSelectorAst[]) {
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super(location);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssPseudoSelector(this, context);
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}
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}
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export class CssBlockAst extends CssAst {
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constructor(location: ParseSourceSpan, public entries: CssAst[]) {
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super(location);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssBlock(this, context);
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}
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}
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/*
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a style block is different from a standard block because it contains
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css prop:value definitions. A regular block can contain a list of Ast entries.
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*/
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export class CssStylesBlockAst extends CssBlockAst {
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constructor(location: ParseSourceSpan, public definitions: CssDefinitionAst[]) {
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super(location, definitions);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssStylesBlock(this, context);
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}
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}
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export class CssStyleSheetAst extends CssAst {
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constructor(location: ParseSourceSpan, public rules: CssAst[]) {
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super(location);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssStyleSheet(this, context);
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}
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}
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export class CssUnknownRuleAst extends CssRuleAst {
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constructor(location: ParseSourceSpan, public ruleName: string, public tokens: CssToken[]) {
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super(location);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssUnknownRule(this, context);
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}
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}
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export class CssUnknownTokenListAst extends CssRuleAst {
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constructor(location: ParseSourceSpan, public name: string, public tokens: CssToken[]) {
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super(location);
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}
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visit(visitor: CssAstVisitor, context?: any): any {
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return visitor.visitCssUnknownTokenList(this, context);
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}
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}
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export function mergeTokens(tokens: CssToken[], separator: string = ''): CssToken {
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const mainToken = tokens[0];
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let str = mainToken.strValue;
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for (let i = 1; i < tokens.length; i++) {
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str += separator + tokens[i].strValue;
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}
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return new CssToken(mainToken.index, mainToken.column, mainToken.line, mainToken.type, str);
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}
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@ -1,725 +0,0 @@
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/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import * as chars from '../chars';
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export enum CssTokenType {
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EOF,
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String,
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Comment,
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Identifier,
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Number,
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IdentifierOrNumber,
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AtKeyword,
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Character,
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Whitespace,
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Invalid
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}
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export enum CssLexerMode {
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ALL,
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ALL_TRACK_WS,
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SELECTOR,
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PSEUDO_SELECTOR,
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PSEUDO_SELECTOR_WITH_ARGUMENTS,
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ATTRIBUTE_SELECTOR,
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AT_RULE_QUERY,
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MEDIA_QUERY,
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BLOCK,
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KEYFRAME_BLOCK,
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STYLE_BLOCK,
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STYLE_VALUE,
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STYLE_VALUE_FUNCTION,
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STYLE_CALC_FUNCTION
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}
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export class LexedCssResult {
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constructor(public error: Error|null, public token: CssToken) {}
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}
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export function generateErrorMessage(
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input: string, message: string, errorValue: string, index: number, row: number,
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column: number): string {
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return `${message} at column ${row}:${column} in expression [` +
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findProblemCode(input, errorValue, index, column) + ']';
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}
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export function findProblemCode(
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input: string, errorValue: string, index: number, column: number): string {
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let endOfProblemLine = index;
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let current = charCode(input, index);
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while (current > 0 && !isNewline(current)) {
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current = charCode(input, ++endOfProblemLine);
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}
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const choppedString = input.substring(0, endOfProblemLine);
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let pointerPadding = '';
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for (let i = 0; i < column; i++) {
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pointerPadding += ' ';
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}
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let pointerString = '';
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for (let i = 0; i < errorValue.length; i++) {
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pointerString += '^';
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}
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return choppedString + '\n' + pointerPadding + pointerString + '\n';
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}
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export class CssToken {
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numValue: number;
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constructor(
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public index: number, public column: number, public line: number, public type: CssTokenType,
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public strValue: string) {
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this.numValue = charCode(strValue, 0);
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}
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}
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export class CssLexer {
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scan(text: string, trackComments: boolean = false): CssScanner {
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return new CssScanner(text, trackComments);
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}
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}
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export function cssScannerError(token: CssToken, message: string): Error {
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const error = Error('CssParseError: ' + message);
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(error as any)[ERROR_RAW_MESSAGE] = message;
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(error as any)[ERROR_TOKEN] = token;
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return error;
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}
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const ERROR_TOKEN = 'ngToken';
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const ERROR_RAW_MESSAGE = 'ngRawMessage';
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export function getRawMessage(error: Error): string {
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return (error as any)[ERROR_RAW_MESSAGE];
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}
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export function getToken(error: Error): CssToken {
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return (error as any)[ERROR_TOKEN];
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}
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function _trackWhitespace(mode: CssLexerMode) {
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switch (mode) {
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case CssLexerMode.SELECTOR:
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case CssLexerMode.PSEUDO_SELECTOR:
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case CssLexerMode.ALL_TRACK_WS:
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case CssLexerMode.STYLE_VALUE:
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return true;
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default:
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return false;
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}
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}
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export class CssScanner {
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// TODO(issue/24571): remove '!'.
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peek!: number;
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peekPeek: number;
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length: number = 0;
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index: number = -1;
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column: number = -1;
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line: number = 0;
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/** @internal */
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_currentMode: CssLexerMode = CssLexerMode.BLOCK;
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/** @internal */
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_currentError: Error|null = null;
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constructor(public input: string, private _trackComments: boolean = false) {
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this.length = this.input.length;
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this.peekPeek = this.peekAt(0);
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this.advance();
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}
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getMode(): CssLexerMode {
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return this._currentMode;
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}
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setMode(mode: CssLexerMode) {
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if (this._currentMode != mode) {
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if (_trackWhitespace(this._currentMode) && !_trackWhitespace(mode)) {
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this.consumeWhitespace();
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}
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this._currentMode = mode;
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}
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}
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advance(): void {
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if (isNewline(this.peek)) {
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this.column = 0;
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this.line++;
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} else {
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this.column++;
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}
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this.index++;
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this.peek = this.peekPeek;
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this.peekPeek = this.peekAt(this.index + 1);
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}
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peekAt(index: number): number {
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return index >= this.length ? chars.$EOF : this.input.charCodeAt(index);
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}
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consumeEmptyStatements(): void {
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this.consumeWhitespace();
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while (this.peek == chars.$SEMICOLON) {
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this.advance();
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this.consumeWhitespace();
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}
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}
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consumeWhitespace(): void {
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while (chars.isWhitespace(this.peek) || isNewline(this.peek)) {
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this.advance();
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if (!this._trackComments && isCommentStart(this.peek, this.peekPeek)) {
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this.advance(); // /
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this.advance(); // *
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while (!isCommentEnd(this.peek, this.peekPeek)) {
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if (this.peek == chars.$EOF) {
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this.error('Unterminated comment');
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}
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this.advance();
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}
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this.advance(); // *
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this.advance(); // /
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}
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}
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}
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consume(type: CssTokenType, value: string|null = null): LexedCssResult {
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const mode = this._currentMode;
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this.setMode(_trackWhitespace(mode) ? CssLexerMode.ALL_TRACK_WS : CssLexerMode.ALL);
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const previousIndex = this.index;
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const previousLine = this.line;
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const previousColumn = this.column;
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let next: CssToken = undefined!;
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const output = this.scan();
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if (output != null) {
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// just incase the inner scan method returned an error
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if (output.error != null) {
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this.setMode(mode);
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return output;
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}
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next = output.token;
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}
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if (next == null) {
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next = new CssToken(this.index, this.column, this.line, CssTokenType.EOF, 'end of file');
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}
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let isMatchingType: boolean = false;
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if (type == CssTokenType.IdentifierOrNumber) {
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// TODO (matsko): implement array traversal for lookup here
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isMatchingType = next.type == CssTokenType.Number || next.type == CssTokenType.Identifier;
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} else {
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isMatchingType = next.type == type;
|
||||
}
|
||||
|
||||
// before throwing the error we need to bring back the former
|
||||
// mode so that the parser can recover...
|
||||
this.setMode(mode);
|
||||
|
||||
let error: Error|null = null;
|
||||
if (!isMatchingType || (value != null && value != next.strValue)) {
|
||||
let errorMessage =
|
||||
CssTokenType[next.type] + ' does not match expected ' + CssTokenType[type] + ' value';
|
||||
|
||||
if (value != null) {
|
||||
errorMessage += ' ("' + next.strValue + '" should match "' + value + '")';
|
||||
}
|
||||
|
||||
error = cssScannerError(
|
||||
next,
|
||||
generateErrorMessage(
|
||||
this.input, errorMessage, next.strValue, previousIndex, previousLine,
|
||||
previousColumn));
|
||||
}
|
||||
|
||||
return new LexedCssResult(error, next);
|
||||
}
|
||||
|
||||
|
||||
scan(): LexedCssResult|null {
|
||||
const trackWS = _trackWhitespace(this._currentMode);
|
||||
if (this.index == 0 && !trackWS) { // first scan
|
||||
this.consumeWhitespace();
|
||||
}
|
||||
|
||||
const token = this._scan();
|
||||
if (token == null) return null;
|
||||
|
||||
const error = this._currentError!;
|
||||
this._currentError = null;
|
||||
|
||||
if (!trackWS) {
|
||||
this.consumeWhitespace();
|
||||
}
|
||||
return new LexedCssResult(error, token);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_scan(): CssToken|null {
|
||||
let peek = this.peek;
|
||||
let peekPeek = this.peekPeek;
|
||||
if (peek == chars.$EOF) return null;
|
||||
|
||||
if (isCommentStart(peek, peekPeek)) {
|
||||
// even if comments are not tracked we still lex the
|
||||
// comment so we can move the pointer forward
|
||||
const commentToken = this.scanComment();
|
||||
if (this._trackComments) {
|
||||
return commentToken;
|
||||
}
|
||||
}
|
||||
|
||||
if (_trackWhitespace(this._currentMode) && (chars.isWhitespace(peek) || isNewline(peek))) {
|
||||
return this.scanWhitespace();
|
||||
}
|
||||
|
||||
peek = this.peek;
|
||||
peekPeek = this.peekPeek;
|
||||
if (peek == chars.$EOF) return null;
|
||||
|
||||
if (isStringStart(peek, peekPeek)) {
|
||||
return this.scanString();
|
||||
}
|
||||
|
||||
// something like url(cool)
|
||||
if (this._currentMode == CssLexerMode.STYLE_VALUE_FUNCTION) {
|
||||
return this.scanCssValueFunction();
|
||||
}
|
||||
|
||||
const isModifier = peek == chars.$PLUS || peek == chars.$MINUS;
|
||||
const digitA = isModifier ? false : chars.isDigit(peek);
|
||||
const digitB = chars.isDigit(peekPeek);
|
||||
if (digitA || (isModifier && (peekPeek == chars.$PERIOD || digitB)) ||
|
||||
(peek == chars.$PERIOD && digitB)) {
|
||||
return this.scanNumber();
|
||||
}
|
||||
|
||||
if (peek == chars.$AT) {
|
||||
return this.scanAtExpression();
|
||||
}
|
||||
|
||||
if (isIdentifierStart(peek, peekPeek)) {
|
||||
return this.scanIdentifier();
|
||||
}
|
||||
|
||||
if (isValidCssCharacter(peek, this._currentMode)) {
|
||||
return this.scanCharacter();
|
||||
}
|
||||
|
||||
return this.error(`Unexpected character [${String.fromCharCode(peek)}]`);
|
||||
}
|
||||
|
||||
scanComment(): CssToken|null {
|
||||
if (this.assertCondition(
|
||||
isCommentStart(this.peek, this.peekPeek), 'Expected comment start value')) {
|
||||
return null;
|
||||
}
|
||||
|
||||
const start = this.index;
|
||||
const startingColumn = this.column;
|
||||
const startingLine = this.line;
|
||||
|
||||
this.advance(); // /
|
||||
this.advance(); // *
|
||||
|
||||
while (!isCommentEnd(this.peek, this.peekPeek)) {
|
||||
if (this.peek == chars.$EOF) {
|
||||
this.error('Unterminated comment');
|
||||
}
|
||||
this.advance();
|
||||
}
|
||||
|
||||
this.advance(); // *
|
||||
this.advance(); // /
|
||||
|
||||
const str = this.input.substring(start, this.index);
|
||||
return new CssToken(start, startingColumn, startingLine, CssTokenType.Comment, str);
|
||||
}
|
||||
|
||||
scanWhitespace(): CssToken {
|
||||
const start = this.index;
|
||||
const startingColumn = this.column;
|
||||
const startingLine = this.line;
|
||||
while (chars.isWhitespace(this.peek) && this.peek != chars.$EOF) {
|
||||
this.advance();
|
||||
}
|
||||
const str = this.input.substring(start, this.index);
|
||||
return new CssToken(start, startingColumn, startingLine, CssTokenType.Whitespace, str);
|
||||
}
|
||||
|
||||
scanString(): CssToken|null {
|
||||
if (this.assertCondition(
|
||||
isStringStart(this.peek, this.peekPeek), 'Unexpected non-string starting value')) {
|
||||
return null;
|
||||
}
|
||||
|
||||
const target = this.peek;
|
||||
const start = this.index;
|
||||
const startingColumn = this.column;
|
||||
const startingLine = this.line;
|
||||
let previous = target;
|
||||
this.advance();
|
||||
|
||||
while (!isCharMatch(target, previous, this.peek)) {
|
||||
if (this.peek == chars.$EOF || isNewline(this.peek)) {
|
||||
this.error('Unterminated quote');
|
||||
}
|
||||
previous = this.peek;
|
||||
this.advance();
|
||||
}
|
||||
|
||||
if (this.assertCondition(this.peek == target, 'Unterminated quote')) {
|
||||
return null;
|
||||
}
|
||||
this.advance();
|
||||
|
||||
const str = this.input.substring(start, this.index);
|
||||
return new CssToken(start, startingColumn, startingLine, CssTokenType.String, str);
|
||||
}
|
||||
|
||||
scanNumber(): CssToken {
|
||||
const start = this.index;
|
||||
const startingColumn = this.column;
|
||||
if (this.peek == chars.$PLUS || this.peek == chars.$MINUS) {
|
||||
this.advance();
|
||||
}
|
||||
let periodUsed = false;
|
||||
while (chars.isDigit(this.peek) || this.peek == chars.$PERIOD) {
|
||||
if (this.peek == chars.$PERIOD) {
|
||||
if (periodUsed) {
|
||||
this.error('Unexpected use of a second period value');
|
||||
}
|
||||
periodUsed = true;
|
||||
}
|
||||
this.advance();
|
||||
}
|
||||
const strValue = this.input.substring(start, this.index);
|
||||
return new CssToken(start, startingColumn, this.line, CssTokenType.Number, strValue);
|
||||
}
|
||||
|
||||
scanIdentifier(): CssToken|null {
|
||||
if (this.assertCondition(
|
||||
isIdentifierStart(this.peek, this.peekPeek), 'Expected identifier starting value')) {
|
||||
return null;
|
||||
}
|
||||
|
||||
const start = this.index;
|
||||
const startingColumn = this.column;
|
||||
while (isIdentifierPart(this.peek)) {
|
||||
this.advance();
|
||||
}
|
||||
const strValue = this.input.substring(start, this.index);
|
||||
return new CssToken(start, startingColumn, this.line, CssTokenType.Identifier, strValue);
|
||||
}
|
||||
|
||||
scanCssValueFunction(): CssToken {
|
||||
const start = this.index;
|
||||
const startingColumn = this.column;
|
||||
let parenBalance = 1;
|
||||
while (this.peek != chars.$EOF && parenBalance > 0) {
|
||||
this.advance();
|
||||
if (this.peek == chars.$LPAREN) {
|
||||
parenBalance++;
|
||||
} else if (this.peek == chars.$RPAREN) {
|
||||
parenBalance--;
|
||||
}
|
||||
}
|
||||
const strValue = this.input.substring(start, this.index);
|
||||
return new CssToken(start, startingColumn, this.line, CssTokenType.Identifier, strValue);
|
||||
}
|
||||
|
||||
scanCharacter(): CssToken|null {
|
||||
const start = this.index;
|
||||
const startingColumn = this.column;
|
||||
if (this.assertCondition(
|
||||
isValidCssCharacter(this.peek, this._currentMode),
|
||||
charStr(this.peek) + ' is not a valid CSS character')) {
|
||||
return null;
|
||||
}
|
||||
|
||||
const c = this.input.substring(start, start + 1);
|
||||
this.advance();
|
||||
|
||||
return new CssToken(start, startingColumn, this.line, CssTokenType.Character, c);
|
||||
}
|
||||
|
||||
scanAtExpression(): CssToken|null {
|
||||
if (this.assertCondition(this.peek == chars.$AT, 'Expected @ value')) {
|
||||
return null;
|
||||
}
|
||||
|
||||
const start = this.index;
|
||||
const startingColumn = this.column;
|
||||
this.advance();
|
||||
if (isIdentifierStart(this.peek, this.peekPeek)) {
|
||||
const ident = this.scanIdentifier()!;
|
||||
const strValue = '@' + ident.strValue;
|
||||
return new CssToken(start, startingColumn, this.line, CssTokenType.AtKeyword, strValue);
|
||||
} else {
|
||||
return this.scanCharacter();
|
||||
}
|
||||
}
|
||||
|
||||
assertCondition(status: boolean, errorMessage: string): boolean {
|
||||
if (!status) {
|
||||
this.error(errorMessage);
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
error(message: string, errorTokenValue: string|null = null, doNotAdvance: boolean = false):
|
||||
CssToken {
|
||||
const index: number = this.index;
|
||||
const column: number = this.column;
|
||||
const line: number = this.line;
|
||||
errorTokenValue = errorTokenValue || String.fromCharCode(this.peek);
|
||||
const invalidToken = new CssToken(index, column, line, CssTokenType.Invalid, errorTokenValue);
|
||||
const errorMessage =
|
||||
generateErrorMessage(this.input, message, errorTokenValue, index, line, column);
|
||||
if (!doNotAdvance) {
|
||||
this.advance();
|
||||
}
|
||||
this._currentError = cssScannerError(invalidToken, errorMessage);
|
||||
return invalidToken;
|
||||
}
|
||||
}
|
||||
|
||||
function isCharMatch(target: number, previous: number, code: number): boolean {
|
||||
return code == target && previous != chars.$BACKSLASH;
|
||||
}
|
||||
|
||||
function isCommentStart(code: number, next: number): boolean {
|
||||
return code == chars.$SLASH && next == chars.$STAR;
|
||||
}
|
||||
|
||||
function isCommentEnd(code: number, next: number): boolean {
|
||||
return code == chars.$STAR && next == chars.$SLASH;
|
||||
}
|
||||
|
||||
function isStringStart(code: number, next: number): boolean {
|
||||
let target = code;
|
||||
if (target == chars.$BACKSLASH) {
|
||||
target = next;
|
||||
}
|
||||
return target == chars.$DQ || target == chars.$SQ;
|
||||
}
|
||||
|
||||
function isIdentifierStart(code: number, next: number): boolean {
|
||||
let target = code;
|
||||
if (target == chars.$MINUS) {
|
||||
target = next;
|
||||
}
|
||||
|
||||
return chars.isAsciiLetter(target) || target == chars.$BACKSLASH || target == chars.$MINUS ||
|
||||
target == chars.$_;
|
||||
}
|
||||
|
||||
function isIdentifierPart(target: number): boolean {
|
||||
return chars.isAsciiLetter(target) || target == chars.$BACKSLASH || target == chars.$MINUS ||
|
||||
target == chars.$_ || chars.isDigit(target);
|
||||
}
|
||||
|
||||
function isValidPseudoSelectorCharacter(code: number): boolean {
|
||||
switch (code) {
|
||||
case chars.$LPAREN:
|
||||
case chars.$RPAREN:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
function isValidKeyframeBlockCharacter(code: number): boolean {
|
||||
return code == chars.$PERCENT;
|
||||
}
|
||||
|
||||
function isValidAttributeSelectorCharacter(code: number): boolean {
|
||||
// value^*|$~=something
|
||||
switch (code) {
|
||||
case chars.$$:
|
||||
case chars.$PIPE:
|
||||
case chars.$CARET:
|
||||
case chars.$TILDA:
|
||||
case chars.$STAR:
|
||||
case chars.$EQ:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
function isValidSelectorCharacter(code: number): boolean {
|
||||
// selector [ key = value ]
|
||||
// IDENT C IDENT C IDENT C
|
||||
// #id, .class, *+~>
|
||||
// tag:PSEUDO
|
||||
switch (code) {
|
||||
case chars.$HASH:
|
||||
case chars.$PERIOD:
|
||||
case chars.$TILDA:
|
||||
case chars.$STAR:
|
||||
case chars.$PLUS:
|
||||
case chars.$GT:
|
||||
case chars.$COLON:
|
||||
case chars.$PIPE:
|
||||
case chars.$COMMA:
|
||||
case chars.$LBRACKET:
|
||||
case chars.$RBRACKET:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
function isValidStyleBlockCharacter(code: number): boolean {
|
||||
// key:value;
|
||||
// key:calc(something ... )
|
||||
switch (code) {
|
||||
case chars.$HASH:
|
||||
case chars.$SEMICOLON:
|
||||
case chars.$COLON:
|
||||
case chars.$PERCENT:
|
||||
case chars.$SLASH:
|
||||
case chars.$BACKSLASH:
|
||||
case chars.$BANG:
|
||||
case chars.$PERIOD:
|
||||
case chars.$LPAREN:
|
||||
case chars.$RPAREN:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
function isValidMediaQueryRuleCharacter(code: number): boolean {
|
||||
// (min-width: 7.5em) and (orientation: landscape)
|
||||
switch (code) {
|
||||
case chars.$LPAREN:
|
||||
case chars.$RPAREN:
|
||||
case chars.$COLON:
|
||||
case chars.$PERCENT:
|
||||
case chars.$PERIOD:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
function isValidAtRuleCharacter(code: number): boolean {
|
||||
// @document url(http://www.w3.org/page?something=on#hash),
|
||||
switch (code) {
|
||||
case chars.$LPAREN:
|
||||
case chars.$RPAREN:
|
||||
case chars.$COLON:
|
||||
case chars.$PERCENT:
|
||||
case chars.$PERIOD:
|
||||
case chars.$SLASH:
|
||||
case chars.$BACKSLASH:
|
||||
case chars.$HASH:
|
||||
case chars.$EQ:
|
||||
case chars.$QUESTION:
|
||||
case chars.$AMPERSAND:
|
||||
case chars.$STAR:
|
||||
case chars.$COMMA:
|
||||
case chars.$MINUS:
|
||||
case chars.$PLUS:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
function isValidStyleFunctionCharacter(code: number): boolean {
|
||||
switch (code) {
|
||||
case chars.$PERIOD:
|
||||
case chars.$MINUS:
|
||||
case chars.$PLUS:
|
||||
case chars.$STAR:
|
||||
case chars.$SLASH:
|
||||
case chars.$LPAREN:
|
||||
case chars.$RPAREN:
|
||||
case chars.$COMMA:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
function isValidBlockCharacter(code: number): boolean {
|
||||
// @something { }
|
||||
// IDENT
|
||||
return code == chars.$AT;
|
||||
}
|
||||
|
||||
function isValidCssCharacter(code: number, mode: CssLexerMode): boolean {
|
||||
switch (mode) {
|
||||
case CssLexerMode.ALL:
|
||||
case CssLexerMode.ALL_TRACK_WS:
|
||||
return true;
|
||||
|
||||
case CssLexerMode.SELECTOR:
|
||||
return isValidSelectorCharacter(code);
|
||||
|
||||
case CssLexerMode.PSEUDO_SELECTOR_WITH_ARGUMENTS:
|
||||
return isValidPseudoSelectorCharacter(code);
|
||||
|
||||
case CssLexerMode.ATTRIBUTE_SELECTOR:
|
||||
return isValidAttributeSelectorCharacter(code);
|
||||
|
||||
case CssLexerMode.MEDIA_QUERY:
|
||||
return isValidMediaQueryRuleCharacter(code);
|
||||
|
||||
case CssLexerMode.AT_RULE_QUERY:
|
||||
return isValidAtRuleCharacter(code);
|
||||
|
||||
case CssLexerMode.KEYFRAME_BLOCK:
|
||||
return isValidKeyframeBlockCharacter(code);
|
||||
|
||||
case CssLexerMode.STYLE_BLOCK:
|
||||
case CssLexerMode.STYLE_VALUE:
|
||||
return isValidStyleBlockCharacter(code);
|
||||
|
||||
case CssLexerMode.STYLE_CALC_FUNCTION:
|
||||
return isValidStyleFunctionCharacter(code);
|
||||
|
||||
case CssLexerMode.BLOCK:
|
||||
return isValidBlockCharacter(code);
|
||||
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
function charCode(input: string, index: number): number {
|
||||
return index >= input.length ? chars.$EOF : input.charCodeAt(index);
|
||||
}
|
||||
|
||||
function charStr(code: number): string {
|
||||
return String.fromCharCode(code);
|
||||
}
|
||||
|
||||
export function isNewline(code: number): boolean {
|
||||
switch (code) {
|
||||
case chars.$FF:
|
||||
case chars.$CR:
|
||||
case chars.$LF:
|
||||
case chars.$VTAB:
|
||||
return true;
|
||||
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
|
@ -1,918 +0,0 @@
|
|||
/**
|
||||
* @license
|
||||
* Copyright Google LLC 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 * as chars from '../chars';
|
||||
import {ParseError, ParseLocation, ParseSourceFile, ParseSourceSpan} from '../parse_util';
|
||||
|
||||
import {BlockType, CssAst, CssAtRulePredicateAst, CssBlockAst, CssBlockDefinitionRuleAst, CssBlockRuleAst, CssDefinitionAst, CssInlineRuleAst, CssKeyframeDefinitionAst, CssKeyframeRuleAst, CssMediaQueryRuleAst, CssPseudoSelectorAst, CssRuleAst, CssSelectorAst, CssSelectorRuleAst, CssSimpleSelectorAst, CssStylesBlockAst, CssStyleSheetAst, CssStyleValueAst, CssUnknownRuleAst, CssUnknownTokenListAst, mergeTokens} from './css_ast';
|
||||
import {CssLexer, CssLexerMode, CssScanner, CssToken, CssTokenType, generateErrorMessage, getRawMessage, isNewline} from './css_lexer';
|
||||
|
||||
const SPACE_OPERATOR = ' ';
|
||||
|
||||
export {CssToken} from './css_lexer';
|
||||
export {BlockType} from './css_ast';
|
||||
|
||||
const SLASH_CHARACTER = '/';
|
||||
const GT_CHARACTER = '>';
|
||||
const TRIPLE_GT_OPERATOR_STR = '>>>';
|
||||
const DEEP_OPERATOR_STR = '/deep/';
|
||||
|
||||
const EOF_DELIM_FLAG = 1;
|
||||
const RBRACE_DELIM_FLAG = 2;
|
||||
const LBRACE_DELIM_FLAG = 4;
|
||||
const COMMA_DELIM_FLAG = 8;
|
||||
const COLON_DELIM_FLAG = 16;
|
||||
const SEMICOLON_DELIM_FLAG = 32;
|
||||
const NEWLINE_DELIM_FLAG = 64;
|
||||
const RPAREN_DELIM_FLAG = 128;
|
||||
const LPAREN_DELIM_FLAG = 256;
|
||||
const SPACE_DELIM_FLAG = 512;
|
||||
|
||||
function _pseudoSelectorSupportsInnerSelectors(name: string): boolean {
|
||||
return ['not', 'host', 'host-context'].indexOf(name) >= 0;
|
||||
}
|
||||
|
||||
function isSelectorOperatorCharacter(code: number): boolean {
|
||||
switch (code) {
|
||||
case chars.$SLASH:
|
||||
case chars.$TILDA:
|
||||
case chars.$PLUS:
|
||||
case chars.$GT:
|
||||
return true;
|
||||
default:
|
||||
return chars.isWhitespace(code);
|
||||
}
|
||||
}
|
||||
|
||||
function getDelimFromCharacter(code: number): number {
|
||||
switch (code) {
|
||||
case chars.$EOF:
|
||||
return EOF_DELIM_FLAG;
|
||||
case chars.$COMMA:
|
||||
return COMMA_DELIM_FLAG;
|
||||
case chars.$COLON:
|
||||
return COLON_DELIM_FLAG;
|
||||
case chars.$SEMICOLON:
|
||||
return SEMICOLON_DELIM_FLAG;
|
||||
case chars.$RBRACE:
|
||||
return RBRACE_DELIM_FLAG;
|
||||
case chars.$LBRACE:
|
||||
return LBRACE_DELIM_FLAG;
|
||||
case chars.$RPAREN:
|
||||
return RPAREN_DELIM_FLAG;
|
||||
case chars.$SPACE:
|
||||
case chars.$TAB:
|
||||
return SPACE_DELIM_FLAG;
|
||||
default:
|
||||
return isNewline(code) ? NEWLINE_DELIM_FLAG : 0;
|
||||
}
|
||||
}
|
||||
|
||||
function characterContainsDelimiter(code: number, delimiters: number): boolean {
|
||||
return (getDelimFromCharacter(code) & delimiters) > 0;
|
||||
}
|
||||
|
||||
export class ParsedCssResult {
|
||||
constructor(public errors: CssParseError[], public ast: CssStyleSheetAst) {}
|
||||
}
|
||||
|
||||
export class CssParser {
|
||||
private _errors: CssParseError[] = [];
|
||||
// TODO(issue/24571): remove '!'.
|
||||
private _file!: ParseSourceFile;
|
||||
// TODO(issue/24571): remove '!'.
|
||||
private _scanner!: CssScanner;
|
||||
// TODO(issue/24571): remove '!'.
|
||||
private _lastToken!: CssToken;
|
||||
|
||||
/**
|
||||
* @param css the CSS code that will be parsed
|
||||
* @param url the name of the CSS file containing the CSS source code
|
||||
*/
|
||||
parse(css: string, url: string): ParsedCssResult {
|
||||
const lexer = new CssLexer();
|
||||
this._file = new ParseSourceFile(css, url);
|
||||
this._scanner = lexer.scan(css, false);
|
||||
|
||||
const ast = this._parseStyleSheet(EOF_DELIM_FLAG);
|
||||
|
||||
const errors = this._errors;
|
||||
this._errors = [];
|
||||
|
||||
const result = new ParsedCssResult(errors, ast);
|
||||
this._file = null as any;
|
||||
this._scanner = null as any;
|
||||
return result;
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseStyleSheet(delimiters: number): CssStyleSheetAst {
|
||||
const results: CssRuleAst[] = [];
|
||||
this._scanner.consumeEmptyStatements();
|
||||
while (this._scanner.peek != chars.$EOF) {
|
||||
this._scanner.setMode(CssLexerMode.BLOCK);
|
||||
results.push(this._parseRule(delimiters));
|
||||
}
|
||||
let span: ParseSourceSpan|null = null;
|
||||
if (results.length > 0) {
|
||||
const firstRule = results[0];
|
||||
// we collect the last token like so incase there was an
|
||||
// EOF token that was emitted sometime during the lexing
|
||||
span = this._generateSourceSpan(firstRule, this._lastToken);
|
||||
}
|
||||
return new CssStyleSheetAst(span!, results);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_getSourceContent(): string {
|
||||
return this._scanner != null ? this._scanner.input : '';
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_extractSourceContent(start: number, end: number): string {
|
||||
return this._getSourceContent().substring(start, end + 1);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_generateSourceSpan(start: CssToken|CssAst, end: CssToken|CssAst|null = null): ParseSourceSpan {
|
||||
let startLoc: ParseLocation;
|
||||
if (start instanceof CssAst) {
|
||||
startLoc = start.location.start;
|
||||
} else {
|
||||
let token = start;
|
||||
if (token == null) {
|
||||
// the data here is invalid, however, if and when this does
|
||||
// occur, any other errors associated with this will be collected
|
||||
token = this._lastToken;
|
||||
}
|
||||
startLoc = new ParseLocation(this._file, token.index, token.line, token.column);
|
||||
}
|
||||
|
||||
if (end == null) {
|
||||
end = this._lastToken;
|
||||
}
|
||||
|
||||
let endLine: number = -1;
|
||||
let endColumn: number = -1;
|
||||
let endIndex: number = -1;
|
||||
if (end instanceof CssAst) {
|
||||
endLine = end.location.end.line!;
|
||||
endColumn = end.location.end.col!;
|
||||
endIndex = end.location.end.offset!;
|
||||
} else if (end instanceof CssToken) {
|
||||
endLine = end.line;
|
||||
endColumn = end.column;
|
||||
endIndex = end.index;
|
||||
}
|
||||
|
||||
const endLoc = new ParseLocation(this._file, endIndex, endLine, endColumn);
|
||||
return new ParseSourceSpan(startLoc, endLoc);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_resolveBlockType(token: CssToken): BlockType {
|
||||
switch (token.strValue) {
|
||||
case '@-o-keyframes':
|
||||
case '@-moz-keyframes':
|
||||
case '@-webkit-keyframes':
|
||||
case '@keyframes':
|
||||
return BlockType.Keyframes;
|
||||
|
||||
case '@charset':
|
||||
return BlockType.Charset;
|
||||
|
||||
case '@import':
|
||||
return BlockType.Import;
|
||||
|
||||
case '@namespace':
|
||||
return BlockType.Namespace;
|
||||
|
||||
case '@page':
|
||||
return BlockType.Page;
|
||||
|
||||
case '@document':
|
||||
return BlockType.Document;
|
||||
|
||||
case '@media':
|
||||
return BlockType.MediaQuery;
|
||||
|
||||
case '@font-face':
|
||||
return BlockType.FontFace;
|
||||
|
||||
case '@viewport':
|
||||
return BlockType.Viewport;
|
||||
|
||||
case '@supports':
|
||||
return BlockType.Supports;
|
||||
|
||||
default:
|
||||
return BlockType.Unsupported;
|
||||
}
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseRule(delimiters: number): CssRuleAst {
|
||||
if (this._scanner.peek == chars.$AT) {
|
||||
return this._parseAtRule(delimiters);
|
||||
}
|
||||
return this._parseSelectorRule(delimiters);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseAtRule(delimiters: number): CssRuleAst {
|
||||
const start = this._getScannerIndex();
|
||||
|
||||
this._scanner.setMode(CssLexerMode.BLOCK);
|
||||
const token = this._scan();
|
||||
const startToken = token;
|
||||
|
||||
this._assertCondition(
|
||||
token.type == CssTokenType.AtKeyword,
|
||||
`The CSS Rule ${token.strValue} is not a valid [@] rule.`, token);
|
||||
|
||||
let block: CssBlockAst;
|
||||
const type = this._resolveBlockType(token);
|
||||
let span: ParseSourceSpan;
|
||||
let tokens: CssToken[];
|
||||
let endToken: CssToken;
|
||||
let end: number;
|
||||
let strValue: string;
|
||||
let query: CssAtRulePredicateAst;
|
||||
switch (type) {
|
||||
case BlockType.Charset:
|
||||
case BlockType.Namespace:
|
||||
case BlockType.Import:
|
||||
let value = this._parseValue(delimiters);
|
||||
this._scanner.setMode(CssLexerMode.BLOCK);
|
||||
this._scanner.consumeEmptyStatements();
|
||||
span = this._generateSourceSpan(startToken, value);
|
||||
return new CssInlineRuleAst(span, type, value);
|
||||
|
||||
case BlockType.Viewport:
|
||||
case BlockType.FontFace:
|
||||
block = this._parseStyleBlock(delimiters)!;
|
||||
span = this._generateSourceSpan(startToken, block);
|
||||
return new CssBlockRuleAst(span, type, block);
|
||||
|
||||
case BlockType.Keyframes:
|
||||
tokens = this._collectUntilDelim(delimiters | RBRACE_DELIM_FLAG | LBRACE_DELIM_FLAG);
|
||||
// keyframes only have one identifier name
|
||||
let name = tokens[0];
|
||||
block = this._parseKeyframeBlock(delimiters);
|
||||
span = this._generateSourceSpan(startToken, block);
|
||||
return new CssKeyframeRuleAst(span, name, block);
|
||||
|
||||
case BlockType.MediaQuery:
|
||||
this._scanner.setMode(CssLexerMode.MEDIA_QUERY);
|
||||
tokens = this._collectUntilDelim(delimiters | RBRACE_DELIM_FLAG | LBRACE_DELIM_FLAG);
|
||||
endToken = tokens[tokens.length - 1];
|
||||
// we do not track the whitespace after the mediaQuery predicate ends
|
||||
// so we have to calculate the end string value on our own
|
||||
end = endToken.index + endToken.strValue.length - 1;
|
||||
strValue = this._extractSourceContent(start, end);
|
||||
span = this._generateSourceSpan(startToken, endToken);
|
||||
query = new CssAtRulePredicateAst(span, strValue, tokens);
|
||||
block = this._parseBlock(delimiters);
|
||||
strValue = this._extractSourceContent(start, this._getScannerIndex() - 1);
|
||||
span = this._generateSourceSpan(startToken, block);
|
||||
return new CssMediaQueryRuleAst(span, strValue, query, block);
|
||||
|
||||
case BlockType.Document:
|
||||
case BlockType.Supports:
|
||||
case BlockType.Page:
|
||||
this._scanner.setMode(CssLexerMode.AT_RULE_QUERY);
|
||||
tokens = this._collectUntilDelim(delimiters | RBRACE_DELIM_FLAG | LBRACE_DELIM_FLAG);
|
||||
endToken = tokens[tokens.length - 1];
|
||||
// we do not track the whitespace after this block rule predicate ends
|
||||
// so we have to calculate the end string value on our own
|
||||
end = endToken.index + endToken.strValue.length - 1;
|
||||
strValue = this._extractSourceContent(start, end);
|
||||
span = this._generateSourceSpan(startToken, tokens[tokens.length - 1]);
|
||||
query = new CssAtRulePredicateAst(span, strValue, tokens);
|
||||
block = this._parseBlock(delimiters);
|
||||
strValue = this._extractSourceContent(start, block.end.offset!);
|
||||
span = this._generateSourceSpan(startToken, block);
|
||||
return new CssBlockDefinitionRuleAst(span, strValue, type, query, block);
|
||||
|
||||
// if a custom @rule { ... } is used it should still tokenize the insides
|
||||
default:
|
||||
let listOfTokens: CssToken[] = [];
|
||||
let tokenName = token.strValue;
|
||||
this._scanner.setMode(CssLexerMode.ALL);
|
||||
this._error(
|
||||
generateErrorMessage(
|
||||
this._getSourceContent(),
|
||||
`The CSS "at" rule "${tokenName}" is not allowed to used here`, token.strValue,
|
||||
token.index, token.line, token.column),
|
||||
token);
|
||||
|
||||
this._collectUntilDelim(delimiters | LBRACE_DELIM_FLAG | SEMICOLON_DELIM_FLAG)
|
||||
.forEach((token) => {
|
||||
listOfTokens.push(token);
|
||||
});
|
||||
if (this._scanner.peek == chars.$LBRACE) {
|
||||
listOfTokens.push(this._consume(CssTokenType.Character, '{'));
|
||||
this._collectUntilDelim(delimiters | RBRACE_DELIM_FLAG | LBRACE_DELIM_FLAG)
|
||||
.forEach((token) => {
|
||||
listOfTokens.push(token);
|
||||
});
|
||||
listOfTokens.push(this._consume(CssTokenType.Character, '}'));
|
||||
}
|
||||
endToken = listOfTokens[listOfTokens.length - 1];
|
||||
span = this._generateSourceSpan(startToken, endToken);
|
||||
return new CssUnknownRuleAst(span, tokenName, listOfTokens);
|
||||
}
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseSelectorRule(delimiters: number): CssRuleAst {
|
||||
const start = this._getScannerIndex();
|
||||
const selectors = this._parseSelectors(delimiters);
|
||||
const block = this._parseStyleBlock(delimiters);
|
||||
let ruleAst: CssRuleAst;
|
||||
let span: ParseSourceSpan;
|
||||
const startSelector = selectors[0];
|
||||
if (block != null) {
|
||||
span = this._generateSourceSpan(startSelector, block);
|
||||
ruleAst = new CssSelectorRuleAst(span, selectors, block);
|
||||
} else {
|
||||
const name = this._extractSourceContent(start, this._getScannerIndex() - 1);
|
||||
const innerTokens: CssToken[] = [];
|
||||
selectors.forEach((selector: CssSelectorAst) => {
|
||||
selector.selectorParts.forEach((part: CssSimpleSelectorAst) => {
|
||||
part.tokens.forEach((token: CssToken) => {
|
||||
innerTokens.push(token);
|
||||
});
|
||||
});
|
||||
});
|
||||
const endToken = innerTokens[innerTokens.length - 1];
|
||||
span = this._generateSourceSpan(startSelector, endToken);
|
||||
ruleAst = new CssUnknownTokenListAst(span, name, innerTokens);
|
||||
}
|
||||
this._scanner.setMode(CssLexerMode.BLOCK);
|
||||
this._scanner.consumeEmptyStatements();
|
||||
return ruleAst;
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseSelectors(delimiters: number): CssSelectorAst[] {
|
||||
delimiters |= LBRACE_DELIM_FLAG | SEMICOLON_DELIM_FLAG;
|
||||
|
||||
const selectors: CssSelectorAst[] = [];
|
||||
let isParsingSelectors = true;
|
||||
while (isParsingSelectors) {
|
||||
selectors.push(this._parseSelector(delimiters));
|
||||
|
||||
isParsingSelectors = !characterContainsDelimiter(this._scanner.peek, delimiters);
|
||||
|
||||
if (isParsingSelectors) {
|
||||
this._consume(CssTokenType.Character, ',');
|
||||
isParsingSelectors = !characterContainsDelimiter(this._scanner.peek, delimiters);
|
||||
if (isParsingSelectors) {
|
||||
this._scanner.consumeWhitespace();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return selectors;
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_scan(): CssToken {
|
||||
const output = this._scanner.scan()!;
|
||||
const token = output.token;
|
||||
const error = output.error;
|
||||
if (error != null) {
|
||||
this._error(getRawMessage(error), token);
|
||||
}
|
||||
this._lastToken = token;
|
||||
return token;
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_getScannerIndex(): number {
|
||||
return this._scanner.index;
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_consume(type: CssTokenType, value: string|null = null): CssToken {
|
||||
const output = this._scanner.consume(type, value);
|
||||
const token = output.token;
|
||||
const error = output.error;
|
||||
if (error != null) {
|
||||
this._error(getRawMessage(error), token);
|
||||
}
|
||||
this._lastToken = token;
|
||||
return token;
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseKeyframeBlock(delimiters: number): CssBlockAst {
|
||||
delimiters |= RBRACE_DELIM_FLAG;
|
||||
this._scanner.setMode(CssLexerMode.KEYFRAME_BLOCK);
|
||||
|
||||
const startToken = this._consume(CssTokenType.Character, '{');
|
||||
|
||||
const definitions: CssKeyframeDefinitionAst[] = [];
|
||||
while (!characterContainsDelimiter(this._scanner.peek, delimiters)) {
|
||||
definitions.push(this._parseKeyframeDefinition(delimiters));
|
||||
}
|
||||
|
||||
const endToken = this._consume(CssTokenType.Character, '}');
|
||||
|
||||
const span = this._generateSourceSpan(startToken, endToken);
|
||||
return new CssBlockAst(span, definitions);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseKeyframeDefinition(delimiters: number): CssKeyframeDefinitionAst {
|
||||
const start = this._getScannerIndex();
|
||||
const stepTokens: CssToken[] = [];
|
||||
delimiters |= LBRACE_DELIM_FLAG;
|
||||
while (!characterContainsDelimiter(this._scanner.peek, delimiters)) {
|
||||
stepTokens.push(this._parseKeyframeLabel(delimiters | COMMA_DELIM_FLAG));
|
||||
if (this._scanner.peek != chars.$LBRACE) {
|
||||
this._consume(CssTokenType.Character, ',');
|
||||
}
|
||||
}
|
||||
const stylesBlock = this._parseStyleBlock(delimiters | RBRACE_DELIM_FLAG);
|
||||
const span = this._generateSourceSpan(stepTokens[0], stylesBlock);
|
||||
const ast = new CssKeyframeDefinitionAst(span, stepTokens, stylesBlock!);
|
||||
|
||||
this._scanner.setMode(CssLexerMode.BLOCK);
|
||||
return ast;
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseKeyframeLabel(delimiters: number): CssToken {
|
||||
this._scanner.setMode(CssLexerMode.KEYFRAME_BLOCK);
|
||||
return mergeTokens(this._collectUntilDelim(delimiters));
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parsePseudoSelector(delimiters: number): CssPseudoSelectorAst {
|
||||
const start = this._getScannerIndex();
|
||||
|
||||
delimiters &= ~COMMA_DELIM_FLAG;
|
||||
|
||||
// we keep the original value since we may use it to recurse when :not, :host are used
|
||||
const startingDelims = delimiters;
|
||||
|
||||
const startToken = this._consume(CssTokenType.Character, ':');
|
||||
const tokens = [startToken];
|
||||
|
||||
if (this._scanner.peek == chars.$COLON) { // ::something
|
||||
tokens.push(this._consume(CssTokenType.Character, ':'));
|
||||
}
|
||||
|
||||
const innerSelectors: CssSelectorAst[] = [];
|
||||
|
||||
this._scanner.setMode(CssLexerMode.PSEUDO_SELECTOR);
|
||||
|
||||
// host, host-context, lang, not, nth-child are all identifiers
|
||||
const pseudoSelectorToken = this._consume(CssTokenType.Identifier);
|
||||
const pseudoSelectorName = pseudoSelectorToken.strValue;
|
||||
tokens.push(pseudoSelectorToken);
|
||||
|
||||
// host(), lang(), nth-child(), etc...
|
||||
if (this._scanner.peek == chars.$LPAREN) {
|
||||
this._scanner.setMode(CssLexerMode.PSEUDO_SELECTOR_WITH_ARGUMENTS);
|
||||
|
||||
const openParenToken = this._consume(CssTokenType.Character, '(');
|
||||
tokens.push(openParenToken);
|
||||
|
||||
// :host(innerSelector(s)), :not(selector), etc...
|
||||
if (_pseudoSelectorSupportsInnerSelectors(pseudoSelectorName)) {
|
||||
let innerDelims = startingDelims | LPAREN_DELIM_FLAG | RPAREN_DELIM_FLAG;
|
||||
if (pseudoSelectorName == 'not') {
|
||||
// the inner selector inside of :not(...) can only be one
|
||||
// CSS selector (no commas allowed) ... This is according
|
||||
// to the CSS specification
|
||||
innerDelims |= COMMA_DELIM_FLAG;
|
||||
}
|
||||
|
||||
// :host(a, b, c) {
|
||||
this._parseSelectors(innerDelims).forEach((selector, index) => {
|
||||
innerSelectors.push(selector);
|
||||
});
|
||||
} else {
|
||||
// this branch is for things like "en-us, 2k + 1, etc..."
|
||||
// which all end up in pseudoSelectors like :lang, :nth-child, etc..
|
||||
const innerValueDelims = delimiters | LBRACE_DELIM_FLAG | COLON_DELIM_FLAG |
|
||||
RPAREN_DELIM_FLAG | LPAREN_DELIM_FLAG;
|
||||
while (!characterContainsDelimiter(this._scanner.peek, innerValueDelims)) {
|
||||
const token = this._scan();
|
||||
tokens.push(token);
|
||||
}
|
||||
}
|
||||
|
||||
const closeParenToken = this._consume(CssTokenType.Character, ')');
|
||||
tokens.push(closeParenToken);
|
||||
}
|
||||
|
||||
const end = this._getScannerIndex() - 1;
|
||||
const strValue = this._extractSourceContent(start, end);
|
||||
|
||||
const endToken = tokens[tokens.length - 1];
|
||||
const span = this._generateSourceSpan(startToken, endToken);
|
||||
return new CssPseudoSelectorAst(span, strValue, pseudoSelectorName, tokens, innerSelectors);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseSimpleSelector(delimiters: number): CssSimpleSelectorAst {
|
||||
const start = this._getScannerIndex();
|
||||
|
||||
delimiters |= COMMA_DELIM_FLAG;
|
||||
|
||||
this._scanner.setMode(CssLexerMode.SELECTOR);
|
||||
const selectorCssTokens: CssToken[] = [];
|
||||
const pseudoSelectors: CssPseudoSelectorAst[] = [];
|
||||
|
||||
let previousToken: CssToken = undefined!;
|
||||
|
||||
const selectorPartDelimiters = delimiters | SPACE_DELIM_FLAG;
|
||||
let loopOverSelector = !characterContainsDelimiter(this._scanner.peek, selectorPartDelimiters);
|
||||
|
||||
let hasAttributeError = false;
|
||||
while (loopOverSelector) {
|
||||
const peek = this._scanner.peek;
|
||||
|
||||
switch (peek) {
|
||||
case chars.$COLON:
|
||||
let innerPseudo = this._parsePseudoSelector(delimiters);
|
||||
pseudoSelectors.push(innerPseudo);
|
||||
this._scanner.setMode(CssLexerMode.SELECTOR);
|
||||
break;
|
||||
|
||||
case chars.$LBRACKET:
|
||||
// we set the mode after the scan because attribute mode does not
|
||||
// allow attribute [] values. And this also will catch any errors
|
||||
// if an extra "[" is used inside.
|
||||
selectorCssTokens.push(this._scan());
|
||||
this._scanner.setMode(CssLexerMode.ATTRIBUTE_SELECTOR);
|
||||
break;
|
||||
|
||||
case chars.$RBRACKET:
|
||||
if (this._scanner.getMode() != CssLexerMode.ATTRIBUTE_SELECTOR) {
|
||||
hasAttributeError = true;
|
||||
}
|
||||
// we set the mode early because attribute mode does not
|
||||
// allow attribute [] values
|
||||
this._scanner.setMode(CssLexerMode.SELECTOR);
|
||||
selectorCssTokens.push(this._scan());
|
||||
break;
|
||||
|
||||
default:
|
||||
if (isSelectorOperatorCharacter(peek)) {
|
||||
loopOverSelector = false;
|
||||
continue;
|
||||
}
|
||||
|
||||
let token = this._scan();
|
||||
previousToken = token;
|
||||
selectorCssTokens.push(token);
|
||||
break;
|
||||
}
|
||||
|
||||
loopOverSelector = !characterContainsDelimiter(this._scanner.peek, selectorPartDelimiters);
|
||||
}
|
||||
|
||||
hasAttributeError =
|
||||
hasAttributeError || this._scanner.getMode() == CssLexerMode.ATTRIBUTE_SELECTOR;
|
||||
if (hasAttributeError) {
|
||||
this._error(
|
||||
`Unbalanced CSS attribute selector at column ${previousToken.line}:${
|
||||
previousToken.column}`,
|
||||
previousToken);
|
||||
}
|
||||
|
||||
let end = this._getScannerIndex() - 1;
|
||||
|
||||
// this happens if the selector is not directly followed by
|
||||
// a comma or curly brace without a space in between
|
||||
let operator: CssToken|null = null;
|
||||
let operatorScanCount = 0;
|
||||
let lastOperatorToken: CssToken|null = null;
|
||||
if (!characterContainsDelimiter(this._scanner.peek, delimiters)) {
|
||||
while (operator == null && !characterContainsDelimiter(this._scanner.peek, delimiters) &&
|
||||
isSelectorOperatorCharacter(this._scanner.peek)) {
|
||||
let token = this._scan();
|
||||
const tokenOperator = token.strValue;
|
||||
operatorScanCount++;
|
||||
lastOperatorToken = token;
|
||||
if (tokenOperator != SPACE_OPERATOR) {
|
||||
switch (tokenOperator) {
|
||||
case SLASH_CHARACTER:
|
||||
// /deep/ operator
|
||||
let deepToken = this._consume(CssTokenType.Identifier);
|
||||
let deepSlash = this._consume(CssTokenType.Character);
|
||||
let index = lastOperatorToken.index;
|
||||
let line = lastOperatorToken.line;
|
||||
let column = lastOperatorToken.column;
|
||||
if (deepToken != null && deepToken.strValue.toLowerCase() == 'deep' &&
|
||||
deepSlash.strValue == SLASH_CHARACTER) {
|
||||
token = new CssToken(
|
||||
lastOperatorToken.index, lastOperatorToken.column, lastOperatorToken.line,
|
||||
CssTokenType.Identifier, DEEP_OPERATOR_STR);
|
||||
} else {
|
||||
const text = SLASH_CHARACTER + deepToken.strValue + deepSlash.strValue;
|
||||
this._error(
|
||||
generateErrorMessage(
|
||||
this._getSourceContent(), `${text} is an invalid CSS operator`, text, index,
|
||||
line, column),
|
||||
lastOperatorToken);
|
||||
token = new CssToken(index, column, line, CssTokenType.Invalid, text);
|
||||
}
|
||||
break;
|
||||
|
||||
case GT_CHARACTER:
|
||||
// >>> operator
|
||||
if (this._scanner.peek == chars.$GT && this._scanner.peekPeek == chars.$GT) {
|
||||
this._consume(CssTokenType.Character, GT_CHARACTER);
|
||||
this._consume(CssTokenType.Character, GT_CHARACTER);
|
||||
token = new CssToken(
|
||||
lastOperatorToken.index, lastOperatorToken.column, lastOperatorToken.line,
|
||||
CssTokenType.Identifier, TRIPLE_GT_OPERATOR_STR);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
operator = token;
|
||||
}
|
||||
}
|
||||
|
||||
// so long as there is an operator then we can have an
|
||||
// ending value that is beyond the selector value ...
|
||||
// otherwise it's just a bunch of trailing whitespace
|
||||
if (operator != null) {
|
||||
end = operator.index;
|
||||
}
|
||||
}
|
||||
|
||||
this._scanner.consumeWhitespace();
|
||||
|
||||
const strValue = this._extractSourceContent(start, end);
|
||||
|
||||
// if we do come across one or more spaces inside of
|
||||
// the operators loop then an empty space is still a
|
||||
// valid operator to use if something else was not found
|
||||
if (operator == null && operatorScanCount > 0 && this._scanner.peek != chars.$LBRACE) {
|
||||
operator = lastOperatorToken;
|
||||
}
|
||||
|
||||
// please note that `endToken` is reassigned multiple times below
|
||||
// so please do not optimize the if statements into if/elseif
|
||||
let startTokenOrAst: CssToken|CssAst|null = null;
|
||||
let endTokenOrAst: CssToken|CssAst|null = null;
|
||||
if (selectorCssTokens.length > 0) {
|
||||
startTokenOrAst = startTokenOrAst || selectorCssTokens[0];
|
||||
endTokenOrAst = selectorCssTokens[selectorCssTokens.length - 1];
|
||||
}
|
||||
if (pseudoSelectors.length > 0) {
|
||||
startTokenOrAst = startTokenOrAst || pseudoSelectors[0];
|
||||
endTokenOrAst = pseudoSelectors[pseudoSelectors.length - 1];
|
||||
}
|
||||
if (operator != null) {
|
||||
startTokenOrAst = startTokenOrAst || operator;
|
||||
endTokenOrAst = operator;
|
||||
}
|
||||
|
||||
const span = this._generateSourceSpan(startTokenOrAst!, endTokenOrAst);
|
||||
return new CssSimpleSelectorAst(span, selectorCssTokens, strValue, pseudoSelectors, operator!);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseSelector(delimiters: number): CssSelectorAst {
|
||||
delimiters |= COMMA_DELIM_FLAG;
|
||||
this._scanner.setMode(CssLexerMode.SELECTOR);
|
||||
|
||||
const simpleSelectors: CssSimpleSelectorAst[] = [];
|
||||
while (!characterContainsDelimiter(this._scanner.peek, delimiters)) {
|
||||
simpleSelectors.push(this._parseSimpleSelector(delimiters));
|
||||
this._scanner.consumeWhitespace();
|
||||
}
|
||||
|
||||
const firstSelector = simpleSelectors[0];
|
||||
const lastSelector = simpleSelectors[simpleSelectors.length - 1];
|
||||
const span = this._generateSourceSpan(firstSelector, lastSelector);
|
||||
return new CssSelectorAst(span, simpleSelectors);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseValue(delimiters: number): CssStyleValueAst {
|
||||
delimiters |= RBRACE_DELIM_FLAG | SEMICOLON_DELIM_FLAG | NEWLINE_DELIM_FLAG;
|
||||
|
||||
this._scanner.setMode(CssLexerMode.STYLE_VALUE);
|
||||
const start = this._getScannerIndex();
|
||||
|
||||
const tokens: CssToken[] = [];
|
||||
let wsStr = '';
|
||||
let previous: CssToken = undefined!;
|
||||
while (!characterContainsDelimiter(this._scanner.peek, delimiters)) {
|
||||
let token: CssToken;
|
||||
if (previous != null && previous.type == CssTokenType.Identifier &&
|
||||
this._scanner.peek == chars.$LPAREN) {
|
||||
token = this._consume(CssTokenType.Character, '(');
|
||||
tokens.push(token);
|
||||
|
||||
this._scanner.setMode(CssLexerMode.STYLE_VALUE_FUNCTION);
|
||||
|
||||
token = this._scan();
|
||||
tokens.push(token);
|
||||
|
||||
this._scanner.setMode(CssLexerMode.STYLE_VALUE);
|
||||
|
||||
token = this._consume(CssTokenType.Character, ')');
|
||||
tokens.push(token);
|
||||
} else {
|
||||
token = this._scan();
|
||||
if (token.type == CssTokenType.Whitespace) {
|
||||
wsStr += token.strValue;
|
||||
} else {
|
||||
wsStr = '';
|
||||
tokens.push(token);
|
||||
}
|
||||
}
|
||||
previous = token;
|
||||
}
|
||||
|
||||
const end = this._getScannerIndex() - 1;
|
||||
this._scanner.consumeWhitespace();
|
||||
|
||||
const code = this._scanner.peek;
|
||||
if (code == chars.$SEMICOLON) {
|
||||
this._consume(CssTokenType.Character, ';');
|
||||
} else if (code != chars.$RBRACE) {
|
||||
this._error(
|
||||
generateErrorMessage(
|
||||
this._getSourceContent(), `The CSS key/value definition did not end with a semicolon`,
|
||||
previous.strValue, previous.index, previous.line, previous.column),
|
||||
previous);
|
||||
}
|
||||
|
||||
const strValue = this._extractSourceContent(start, end);
|
||||
const startToken = tokens[0];
|
||||
const endToken = tokens[tokens.length - 1];
|
||||
const span = this._generateSourceSpan(startToken, endToken);
|
||||
return new CssStyleValueAst(span, tokens, strValue);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_collectUntilDelim(delimiters: number, assertType: CssTokenType|null = null): CssToken[] {
|
||||
const tokens: CssToken[] = [];
|
||||
while (!characterContainsDelimiter(this._scanner.peek, delimiters)) {
|
||||
const val = assertType != null ? this._consume(assertType) : this._scan();
|
||||
tokens.push(val);
|
||||
}
|
||||
return tokens;
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseBlock(delimiters: number): CssBlockAst {
|
||||
delimiters |= RBRACE_DELIM_FLAG;
|
||||
|
||||
this._scanner.setMode(CssLexerMode.BLOCK);
|
||||
|
||||
const startToken = this._consume(CssTokenType.Character, '{');
|
||||
this._scanner.consumeEmptyStatements();
|
||||
|
||||
const results: CssRuleAst[] = [];
|
||||
while (!characterContainsDelimiter(this._scanner.peek, delimiters)) {
|
||||
results.push(this._parseRule(delimiters));
|
||||
}
|
||||
|
||||
const endToken = this._consume(CssTokenType.Character, '}');
|
||||
|
||||
this._scanner.setMode(CssLexerMode.BLOCK);
|
||||
this._scanner.consumeEmptyStatements();
|
||||
|
||||
const span = this._generateSourceSpan(startToken, endToken);
|
||||
return new CssBlockAst(span, results);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseStyleBlock(delimiters: number): CssStylesBlockAst|null {
|
||||
delimiters |= RBRACE_DELIM_FLAG | LBRACE_DELIM_FLAG;
|
||||
|
||||
this._scanner.setMode(CssLexerMode.STYLE_BLOCK);
|
||||
|
||||
const startToken = this._consume(CssTokenType.Character, '{');
|
||||
if (startToken.numValue != chars.$LBRACE) {
|
||||
return null;
|
||||
}
|
||||
|
||||
const definitions: CssDefinitionAst[] = [];
|
||||
this._scanner.consumeEmptyStatements();
|
||||
|
||||
while (!characterContainsDelimiter(this._scanner.peek, delimiters)) {
|
||||
definitions.push(this._parseDefinition(delimiters));
|
||||
this._scanner.consumeEmptyStatements();
|
||||
}
|
||||
|
||||
const endToken = this._consume(CssTokenType.Character, '}');
|
||||
|
||||
this._scanner.setMode(CssLexerMode.STYLE_BLOCK);
|
||||
this._scanner.consumeEmptyStatements();
|
||||
|
||||
const span = this._generateSourceSpan(startToken, endToken);
|
||||
return new CssStylesBlockAst(span, definitions);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_parseDefinition(delimiters: number): CssDefinitionAst {
|
||||
this._scanner.setMode(CssLexerMode.STYLE_BLOCK);
|
||||
|
||||
let prop = this._consume(CssTokenType.Identifier);
|
||||
let parseValue: boolean = false;
|
||||
let value: CssStyleValueAst|null = null;
|
||||
let endToken: CssToken|CssStyleValueAst = prop;
|
||||
|
||||
// the colon value separates the prop from the style.
|
||||
// there are a few cases as to what could happen if it
|
||||
// is missing
|
||||
switch (this._scanner.peek) {
|
||||
case chars.$SEMICOLON:
|
||||
case chars.$RBRACE:
|
||||
case chars.$EOF:
|
||||
parseValue = false;
|
||||
break;
|
||||
|
||||
default:
|
||||
let propStr = [prop.strValue];
|
||||
if (this._scanner.peek != chars.$COLON) {
|
||||
// this will throw the error
|
||||
const nextValue = this._consume(CssTokenType.Character, ':');
|
||||
propStr.push(nextValue.strValue);
|
||||
|
||||
const remainingTokens = this._collectUntilDelim(
|
||||
delimiters | COLON_DELIM_FLAG | SEMICOLON_DELIM_FLAG, CssTokenType.Identifier);
|
||||
if (remainingTokens.length > 0) {
|
||||
remainingTokens.forEach((token) => {
|
||||
propStr.push(token.strValue);
|
||||
});
|
||||
}
|
||||
|
||||
endToken = prop =
|
||||
new CssToken(prop.index, prop.column, prop.line, prop.type, propStr.join(' '));
|
||||
}
|
||||
|
||||
// this means we've reached the end of the definition and/or block
|
||||
if (this._scanner.peek == chars.$COLON) {
|
||||
this._consume(CssTokenType.Character, ':');
|
||||
parseValue = true;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (parseValue) {
|
||||
value = this._parseValue(delimiters);
|
||||
endToken = value;
|
||||
} else {
|
||||
this._error(
|
||||
generateErrorMessage(
|
||||
this._getSourceContent(), `The CSS property was not paired with a style value`,
|
||||
prop.strValue, prop.index, prop.line, prop.column),
|
||||
prop);
|
||||
}
|
||||
|
||||
const span = this._generateSourceSpan(prop, endToken);
|
||||
return new CssDefinitionAst(span, prop, value!);
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_assertCondition(status: boolean, errorMessage: string, problemToken: CssToken): boolean {
|
||||
if (!status) {
|
||||
this._error(errorMessage, problemToken);
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
_error(message: string, problemToken: CssToken) {
|
||||
const length = problemToken.strValue.length;
|
||||
const error = CssParseError.create(
|
||||
this._file, 0, problemToken.line, problemToken.column, length, message);
|
||||
this._errors.push(error);
|
||||
}
|
||||
}
|
||||
|
||||
export class CssParseError extends ParseError {
|
||||
static create(
|
||||
file: ParseSourceFile, offset: number, line: number, col: number, length: number,
|
||||
errMsg: string): CssParseError {
|
||||
const start = new ParseLocation(file, offset, line, col);
|
||||
const end = new ParseLocation(file, offset, line, col + length);
|
||||
const span = new ParseSourceSpan(start, end);
|
||||
return new CssParseError(span, 'CSS Parse Error: ' + errMsg);
|
||||
}
|
||||
|
||||
constructor(span: ParseSourceSpan, message: string) {
|
||||
super(span, message);
|
||||
}
|
||||
}
|
||||
|
|
@ -1,30 +0,0 @@
|
|||
load("//tools:defaults.bzl", "jasmine_node_test", "karma_web_test_suite", "ts_library")
|
||||
|
||||
ts_library(
|
||||
name = "css_parser_lib",
|
||||
testonly = True,
|
||||
srcs = glob(["**/*.ts"]),
|
||||
deps = [
|
||||
"//packages:types",
|
||||
"//packages/compiler",
|
||||
"//packages/compiler/testing",
|
||||
"//packages/core/testing",
|
||||
"//packages/platform-browser",
|
||||
"//packages/platform-browser/testing",
|
||||
],
|
||||
)
|
||||
|
||||
jasmine_node_test(
|
||||
name = "css_parser",
|
||||
bootstrap = ["//tools/testing:node_es5"],
|
||||
deps = [
|
||||
":css_parser_lib",
|
||||
],
|
||||
)
|
||||
|
||||
karma_web_test_suite(
|
||||
name = "css_parser_web",
|
||||
deps = [
|
||||
":css_parser_lib",
|
||||
],
|
||||
)
|
||||
|
|
@ -1,387 +0,0 @@
|
|||
/**
|
||||
* @license
|
||||
* Copyright Google LLC 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 {describe, expect, it} from '../../../core/testing/src/testing_internal';
|
||||
import {CssLexer, CssLexerMode, cssScannerError, CssToken, CssTokenType, getRawMessage, getToken} from '../../src/css_parser/css_lexer';
|
||||
|
||||
(function() {
|
||||
function tokenize(
|
||||
code: string, trackComments: boolean = false,
|
||||
mode: CssLexerMode = CssLexerMode.ALL): CssToken[] {
|
||||
const scanner = new CssLexer().scan(code, trackComments);
|
||||
scanner.setMode(mode);
|
||||
|
||||
const tokens: CssToken[] = [];
|
||||
let output = scanner.scan();
|
||||
while (output != null) {
|
||||
const error = output.error;
|
||||
if (error != null) {
|
||||
throw cssScannerError(getToken(error), getRawMessage(error));
|
||||
}
|
||||
tokens.push(output.token);
|
||||
output = scanner.scan();
|
||||
}
|
||||
|
||||
return tokens;
|
||||
}
|
||||
|
||||
describe('CssLexer', () => {
|
||||
it('should lex newline characters as whitespace when whitespace mode is on', () => {
|
||||
const newlines = ['\n', '\r\n', '\r', '\f'];
|
||||
newlines.forEach((line) => {
|
||||
const token = tokenize(line, false, CssLexerMode.ALL_TRACK_WS)[0];
|
||||
expect(token.type).toEqual(CssTokenType.Whitespace);
|
||||
});
|
||||
});
|
||||
|
||||
it('should combined newline characters as one newline token when whitespace mode is on', () => {
|
||||
const newlines = ['\n', '\r\n', '\r', '\f'].join('');
|
||||
const tokens = tokenize(newlines, false, CssLexerMode.ALL_TRACK_WS);
|
||||
expect(tokens.length).toEqual(1);
|
||||
expect(tokens[0].type).toEqual(CssTokenType.Whitespace);
|
||||
});
|
||||
|
||||
it('should not consider whitespace or newline values at all when whitespace mode is off', () => {
|
||||
const newlines = ['\n', '\r\n', '\r', '\f'].join('');
|
||||
const tokens = tokenize(newlines);
|
||||
expect(tokens.length).toEqual(0);
|
||||
});
|
||||
|
||||
it('should lex simple selectors and their inner properties', () => {
|
||||
const cssCode = '\n' +
|
||||
' .selector { my-prop: my-value; }\n';
|
||||
const tokens = tokenize(cssCode);
|
||||
|
||||
expect(tokens[0].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[0].strValue).toEqual('.');
|
||||
|
||||
expect(tokens[1].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[1].strValue).toEqual('selector');
|
||||
|
||||
expect(tokens[2].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[2].strValue).toEqual('{');
|
||||
|
||||
expect(tokens[3].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[3].strValue).toEqual('my-prop');
|
||||
|
||||
expect(tokens[4].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[4].strValue).toEqual(':');
|
||||
|
||||
expect(tokens[5].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[5].strValue).toEqual('my-value');
|
||||
|
||||
expect(tokens[6].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[6].strValue).toEqual(';');
|
||||
|
||||
expect(tokens[7].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[7].strValue).toEqual('}');
|
||||
});
|
||||
|
||||
it('should capture the column and line values for each token', () => {
|
||||
const cssCode = '#id {\n' +
|
||||
' prop:value;\n' +
|
||||
'}';
|
||||
|
||||
const tokens = tokenize(cssCode);
|
||||
|
||||
// #
|
||||
expect(tokens[0].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[0].column).toEqual(0);
|
||||
expect(tokens[0].line).toEqual(0);
|
||||
|
||||
// id
|
||||
expect(tokens[1].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[1].column).toEqual(1);
|
||||
expect(tokens[1].line).toEqual(0);
|
||||
|
||||
// {
|
||||
expect(tokens[2].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[2].column).toEqual(4);
|
||||
expect(tokens[2].line).toEqual(0);
|
||||
|
||||
// prop
|
||||
expect(tokens[3].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[3].column).toEqual(2);
|
||||
expect(tokens[3].line).toEqual(1);
|
||||
|
||||
// :
|
||||
expect(tokens[4].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[4].column).toEqual(6);
|
||||
expect(tokens[4].line).toEqual(1);
|
||||
|
||||
// value
|
||||
expect(tokens[5].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[5].column).toEqual(7);
|
||||
expect(tokens[5].line).toEqual(1);
|
||||
|
||||
// ;
|
||||
expect(tokens[6].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[6].column).toEqual(12);
|
||||
expect(tokens[6].line).toEqual(1);
|
||||
|
||||
// }
|
||||
expect(tokens[7].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[7].column).toEqual(0);
|
||||
expect(tokens[7].line).toEqual(2);
|
||||
});
|
||||
|
||||
it('should lex quoted strings and escape accordingly', () => {
|
||||
const cssCode = 'prop: \'some { value } \\\' that is quoted\'';
|
||||
const tokens = tokenize(cssCode);
|
||||
|
||||
expect(tokens[0].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[1].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[2].type).toEqual(CssTokenType.String);
|
||||
expect(tokens[2].strValue).toEqual('\'some { value } \\\' that is quoted\'');
|
||||
});
|
||||
|
||||
it('should treat attribute operators as regular characters', () => {
|
||||
tokenize('^|~+*').forEach((token) => {
|
||||
expect(token.type).toEqual(CssTokenType.Character);
|
||||
});
|
||||
});
|
||||
|
||||
it('should lex numbers properly and set them as numbers', () => {
|
||||
const cssCode = '0 1 -2 3.0 -4.001';
|
||||
const tokens = tokenize(cssCode);
|
||||
|
||||
expect(tokens[0].type).toEqual(CssTokenType.Number);
|
||||
expect(tokens[0].strValue).toEqual('0');
|
||||
|
||||
expect(tokens[1].type).toEqual(CssTokenType.Number);
|
||||
expect(tokens[1].strValue).toEqual('1');
|
||||
|
||||
expect(tokens[2].type).toEqual(CssTokenType.Number);
|
||||
expect(tokens[2].strValue).toEqual('-2');
|
||||
|
||||
expect(tokens[3].type).toEqual(CssTokenType.Number);
|
||||
expect(tokens[3].strValue).toEqual('3.0');
|
||||
|
||||
expect(tokens[4].type).toEqual(CssTokenType.Number);
|
||||
expect(tokens[4].strValue).toEqual('-4.001');
|
||||
});
|
||||
|
||||
it('should lex @keywords', () => {
|
||||
const cssCode = '@import()@something';
|
||||
const tokens = tokenize(cssCode);
|
||||
|
||||
expect(tokens[0].type).toEqual(CssTokenType.AtKeyword);
|
||||
expect(tokens[0].strValue).toEqual('@import');
|
||||
|
||||
expect(tokens[1].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[1].strValue).toEqual('(');
|
||||
|
||||
expect(tokens[2].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[2].strValue).toEqual(')');
|
||||
|
||||
expect(tokens[3].type).toEqual(CssTokenType.AtKeyword);
|
||||
expect(tokens[3].strValue).toEqual('@something');
|
||||
});
|
||||
|
||||
it('should still lex a number even if it has a dimension suffix', () => {
|
||||
const cssCode = '40% is 40 percent';
|
||||
const tokens = tokenize(cssCode);
|
||||
|
||||
expect(tokens[0].type).toEqual(CssTokenType.Number);
|
||||
expect(tokens[0].strValue).toEqual('40');
|
||||
|
||||
expect(tokens[1].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[1].strValue).toEqual('%');
|
||||
|
||||
expect(tokens[2].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[2].strValue).toEqual('is');
|
||||
|
||||
expect(tokens[3].type).toEqual(CssTokenType.Number);
|
||||
expect(tokens[3].strValue).toEqual('40');
|
||||
});
|
||||
|
||||
it('should allow escaped character and unicode character-strings in CSS selectors', () => {
|
||||
const cssCode = '\\123456 .some\\thing \{\}';
|
||||
const tokens = tokenize(cssCode);
|
||||
|
||||
expect(tokens[0].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[0].strValue).toEqual('\\123456');
|
||||
|
||||
expect(tokens[1].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[2].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[2].strValue).toEqual('some\\thing');
|
||||
});
|
||||
|
||||
it('should distinguish identifiers and numbers from special characters', () => {
|
||||
const cssCode = 'one*two=-4+three-4-equals_value$';
|
||||
const tokens = tokenize(cssCode);
|
||||
|
||||
expect(tokens[0].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[0].strValue).toEqual('one');
|
||||
|
||||
expect(tokens[1].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[1].strValue).toEqual('*');
|
||||
|
||||
expect(tokens[2].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[2].strValue).toEqual('two');
|
||||
|
||||
expect(tokens[3].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[3].strValue).toEqual('=');
|
||||
|
||||
expect(tokens[4].type).toEqual(CssTokenType.Number);
|
||||
expect(tokens[4].strValue).toEqual('-4');
|
||||
|
||||
expect(tokens[5].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[5].strValue).toEqual('+');
|
||||
|
||||
expect(tokens[6].type).toEqual(CssTokenType.Identifier);
|
||||
expect(tokens[6].strValue).toEqual('three-4-equals_value');
|
||||
|
||||
expect(tokens[7].type).toEqual(CssTokenType.Character);
|
||||
expect(tokens[7].strValue).toEqual('$');
|
||||
});
|
||||
|
||||
it('should filter out comments and whitespace by default', () => {
|
||||
const cssCode = '.selector /* comment */ { /* value */ }';
|
||||
const tokens = tokenize(cssCode);
|
||||
|
||||
expect(tokens[0].strValue).toEqual('.');
|
||||
expect(tokens[1].strValue).toEqual('selector');
|
||||
expect(tokens[2].strValue).toEqual('{');
|
||||
expect(tokens[3].strValue).toEqual('}');
|
||||
});
|
||||
|
||||
it('should track comments when the flag is set to true', () => {
|
||||
const cssCode = '.selector /* comment */ { /* value */ }';
|
||||
const trackComments = true;
|
||||
const tokens = tokenize(cssCode, trackComments, CssLexerMode.ALL_TRACK_WS);
|
||||
|
||||
expect(tokens[0].strValue).toEqual('.');
|
||||
expect(tokens[1].strValue).toEqual('selector');
|
||||
expect(tokens[2].strValue).toEqual(' ');
|
||||
|
||||
expect(tokens[3].type).toEqual(CssTokenType.Comment);
|
||||
expect(tokens[3].strValue).toEqual('/* comment */');
|
||||
|
||||
expect(tokens[4].strValue).toEqual(' ');
|
||||
expect(tokens[5].strValue).toEqual('{');
|
||||
expect(tokens[6].strValue).toEqual(' ');
|
||||
|
||||
expect(tokens[7].type).toEqual(CssTokenType.Comment);
|
||||
expect(tokens[7].strValue).toEqual('/* value */');
|
||||
});
|
||||
|
||||
describe('Selector Mode', () => {
|
||||
it('should throw an error if a selector is being parsed while in the wrong mode', () => {
|
||||
const cssCode = '.class > tag';
|
||||
|
||||
let capturedMessage: string|null = null;
|
||||
try {
|
||||
tokenize(cssCode, false, CssLexerMode.STYLE_BLOCK);
|
||||
} catch (e) {
|
||||
capturedMessage = getRawMessage(e);
|
||||
}
|
||||
|
||||
expect(capturedMessage).toMatch(/Unexpected character \[\>\] at column 0:7 in expression/g);
|
||||
|
||||
capturedMessage = null;
|
||||
try {
|
||||
tokenize(cssCode, false, CssLexerMode.SELECTOR);
|
||||
} catch (e) {
|
||||
capturedMessage = getRawMessage(e);
|
||||
}
|
||||
|
||||
expect(capturedMessage).toEqual(null);
|
||||
});
|
||||
});
|
||||
|
||||
describe('Attribute Mode', () => {
|
||||
it('should consider attribute selectors as valid input and throw when an invalid modifier is used',
|
||||
() => {
|
||||
function tokenizeAttr(modifier: string) {
|
||||
const cssCode = 'value' + modifier + '=\'something\'';
|
||||
return tokenize(cssCode, false, CssLexerMode.ATTRIBUTE_SELECTOR);
|
||||
}
|
||||
|
||||
expect(tokenizeAttr('*').length).toEqual(4);
|
||||
expect(tokenizeAttr('|').length).toEqual(4);
|
||||
expect(tokenizeAttr('^').length).toEqual(4);
|
||||
expect(tokenizeAttr('$').length).toEqual(4);
|
||||
expect(tokenizeAttr('~').length).toEqual(4);
|
||||
expect(tokenizeAttr('').length).toEqual(3);
|
||||
|
||||
expect(() => {
|
||||
tokenizeAttr('+');
|
||||
}).toThrow();
|
||||
});
|
||||
});
|
||||
|
||||
describe('Media Query Mode', () => {
|
||||
it('should validate media queries with a reduced subset of valid characters', () => {
|
||||
function tokenizeQuery(code: string) {
|
||||
return tokenize(code, false, CssLexerMode.MEDIA_QUERY);
|
||||
}
|
||||
|
||||
// the reason why the numbers are so high is because MediaQueries keep
|
||||
// track of the whitespace values
|
||||
expect(tokenizeQuery('(prop: value)').length).toEqual(5);
|
||||
expect(tokenizeQuery('(prop: value) and (prop2: value2)').length).toEqual(11);
|
||||
expect(tokenizeQuery('tv and (prop: value)').length).toEqual(7);
|
||||
expect(tokenizeQuery('print and ((prop: value) or (prop2: value2))').length).toEqual(15);
|
||||
expect(tokenizeQuery('(content: \'something $ crazy inside &\')').length).toEqual(5);
|
||||
|
||||
expect(() => {
|
||||
tokenizeQuery('(max-height: 10 + 20)');
|
||||
}).toThrow();
|
||||
|
||||
expect(() => {
|
||||
tokenizeQuery('(max-height: fifty < 100)');
|
||||
}).toThrow();
|
||||
});
|
||||
});
|
||||
|
||||
describe('Pseudo Selector Mode', () => {
|
||||
it('should validate pseudo selector identifiers with a reduced subset of valid characters',
|
||||
() => {
|
||||
function tokenizePseudo(code: string, withArgs = false): CssToken[] {
|
||||
const mode = withArgs ? CssLexerMode.PSEUDO_SELECTOR_WITH_ARGUMENTS :
|
||||
CssLexerMode.PSEUDO_SELECTOR;
|
||||
return tokenize(code, false, mode);
|
||||
}
|
||||
|
||||
expect(tokenizePseudo('hover').length).toEqual(1);
|
||||
expect(tokenizePseudo('focus').length).toEqual(1);
|
||||
expect(tokenizePseudo('lang(en-us)', true).length).toEqual(4);
|
||||
|
||||
expect(() => {
|
||||
tokenizePseudo('lang(something:broken)', true);
|
||||
}).toThrow();
|
||||
|
||||
expect(() => {
|
||||
tokenizePseudo('not(.selector)', true);
|
||||
}).toThrow();
|
||||
});
|
||||
});
|
||||
|
||||
describe(
|
||||
'Style Block Mode', () => {
|
||||
it(
|
||||
'should style blocks with a reduced subset of valid characters', () => {
|
||||
function tokenizeStyles(code: string) {
|
||||
return tokenize(code, false, CssLexerMode.STYLE_BLOCK);
|
||||
}
|
||||
|
||||
expect(tokenizeStyles(`
|
||||
key: value;
|
||||
prop: 100;
|
||||
style: value3!important;
|
||||
`).length).toEqual(14);
|
||||
|
||||
expect(() => tokenizeStyles(` key$: value; `)).toThrow();
|
||||
expect(() => tokenizeStyles(` key: value$; `)).toThrow();
|
||||
expect(() => tokenizeStyles(` key: value + 10; `)).toThrow();
|
||||
expect(() => tokenizeStyles(` key: &value; `)).toThrow();
|
||||
});
|
||||
});
|
||||
});
|
||||
})();
|
||||
|
|
@ -1,802 +0,0 @@
|
|||
/**
|
||||
* @license
|
||||
* Copyright Google LLC 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 {describe, expect, it} from '../../../core/testing/src/testing_internal';
|
||||
import {CssBlockAst, CssBlockDefinitionRuleAst, CssBlockRuleAst, CssDefinitionAst, CssInlineRuleAst, CssKeyframeDefinitionAst, CssKeyframeRuleAst, CssMediaQueryRuleAst, CssSelectorRuleAst, CssStyleSheetAst, CssStyleValueAst} from '../../src/css_parser/css_ast';
|
||||
import {BlockType, CssParseError, CssParser, CssToken, ParsedCssResult} from '../../src/css_parser/css_parser';
|
||||
import {ParseLocation} from '../../src/parse_util';
|
||||
|
||||
export function assertTokens(tokens: CssToken[], valuesArr: string[]) {
|
||||
for (let i = 0; i < tokens.length; i++) {
|
||||
expect(tokens[i].strValue == valuesArr[i]);
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
describe('CssParser', () => {
|
||||
function parse(css: string): ParsedCssResult {
|
||||
return new CssParser().parse(css, 'some-fake-css-file.css');
|
||||
}
|
||||
|
||||
function makeAst(css: string): CssStyleSheetAst {
|
||||
const output = parse(css);
|
||||
const errors = output.errors;
|
||||
if (errors.length > 0) {
|
||||
throw new Error(errors.map((error: CssParseError) => error.msg).join(', '));
|
||||
}
|
||||
return output.ast;
|
||||
}
|
||||
|
||||
it('should parse CSS into a stylesheet Ast', () => {
|
||||
const styles = '.selector { prop: value123; }';
|
||||
|
||||
const ast = makeAst(styles);
|
||||
expect(ast.rules.length).toEqual(1);
|
||||
|
||||
const rule = <CssSelectorRuleAst>ast.rules[0];
|
||||
const selector = rule.selectors[0];
|
||||
expect(selector.strValue).toEqual('.selector');
|
||||
|
||||
const block: CssBlockAst = rule.block;
|
||||
expect(block.entries.length).toEqual(1);
|
||||
|
||||
const definition = <CssDefinitionAst>block.entries[0];
|
||||
expect(definition.property.strValue).toEqual('prop');
|
||||
|
||||
const value = <CssStyleValueAst>definition.value;
|
||||
expect(value.tokens[0].strValue).toEqual('value123');
|
||||
});
|
||||
|
||||
it('should parse multiple CSS selectors sharing the same set of styles', () => {
|
||||
const styles = `
|
||||
.class, #id, tag, [attr], key + value, * value, :-moz-any-link {
|
||||
prop: value123;
|
||||
}
|
||||
`;
|
||||
|
||||
const ast = makeAst(styles);
|
||||
expect(ast.rules.length).toEqual(1);
|
||||
|
||||
const rule = <CssSelectorRuleAst>ast.rules[0];
|
||||
expect(rule.selectors.length).toBe(7);
|
||||
|
||||
const classRule = rule.selectors[0];
|
||||
const idRule = rule.selectors[1];
|
||||
const tagRule = rule.selectors[2];
|
||||
const attrRule = rule.selectors[3];
|
||||
const plusOpRule = rule.selectors[4];
|
||||
const starOpRule = rule.selectors[5];
|
||||
const mozRule = rule.selectors[6];
|
||||
|
||||
assertTokens(classRule.selectorParts[0].tokens, ['.', 'class']);
|
||||
assertTokens(idRule.selectorParts[0].tokens, ['.', 'class']);
|
||||
assertTokens(attrRule.selectorParts[0].tokens, ['[', 'attr', ']']);
|
||||
|
||||
assertTokens(plusOpRule.selectorParts[0].tokens, ['key']);
|
||||
expect(plusOpRule.selectorParts[0].operator.strValue).toEqual('+');
|
||||
assertTokens(plusOpRule.selectorParts[1].tokens, ['value']);
|
||||
|
||||
assertTokens(starOpRule.selectorParts[0].tokens, ['*']);
|
||||
assertTokens(starOpRule.selectorParts[1].tokens, ['value']);
|
||||
|
||||
assertTokens(mozRule.selectorParts[0].pseudoSelectors[0].tokens, [':', '-moz-any-link']);
|
||||
|
||||
const style1 = <CssDefinitionAst>rule.block.entries[0];
|
||||
expect(style1.property.strValue).toEqual('prop');
|
||||
assertTokens(style1.value.tokens, ['value123']);
|
||||
});
|
||||
|
||||
it('should parse keyframe rules', () => {
|
||||
const styles = `
|
||||
@keyframes rotateMe {
|
||||
from {
|
||||
transform: rotate(-360deg);
|
||||
}
|
||||
50% {
|
||||
transform: rotate(0deg);
|
||||
}
|
||||
to {
|
||||
transform: rotate(360deg);
|
||||
}
|
||||
}
|
||||
`;
|
||||
|
||||
const ast = makeAst(styles);
|
||||
expect(ast.rules.length).toEqual(1);
|
||||
|
||||
const rule = <CssKeyframeRuleAst>ast.rules[0];
|
||||
expect(rule.name!.strValue).toEqual('rotateMe');
|
||||
|
||||
const block = <CssBlockAst>rule.block;
|
||||
const fromRule = <CssKeyframeDefinitionAst>block.entries[0];
|
||||
|
||||
expect(fromRule.name!.strValue).toEqual('from');
|
||||
const fromStyle = <CssDefinitionAst>(<CssBlockAst>fromRule.block).entries[0];
|
||||
expect(fromStyle.property.strValue).toEqual('transform');
|
||||
assertTokens(fromStyle.value.tokens, ['rotate', '(', '-360', 'deg', ')']);
|
||||
|
||||
const midRule = <CssKeyframeDefinitionAst>block.entries[1];
|
||||
|
||||
expect(midRule.name!.strValue).toEqual('50%');
|
||||
const midStyle = <CssDefinitionAst>(<CssBlockAst>midRule.block).entries[0];
|
||||
expect(midStyle.property.strValue).toEqual('transform');
|
||||
assertTokens(midStyle.value.tokens, ['rotate', '(', '0', 'deg', ')']);
|
||||
|
||||
const toRule = <CssKeyframeDefinitionAst>block.entries[2];
|
||||
|
||||
expect(toRule.name!.strValue).toEqual('to');
|
||||
const toStyle = <CssDefinitionAst>(<CssBlockAst>toRule.block).entries[0];
|
||||
expect(toStyle.property.strValue).toEqual('transform');
|
||||
assertTokens(toStyle.value.tokens, ['rotate', '(', '360', 'deg', ')']);
|
||||
});
|
||||
|
||||
it('should parse media queries into a stylesheet Ast', () => {
|
||||
const styles = `
|
||||
@media all and (max-width:100px) {
|
||||
.selector {
|
||||
prop: value123;
|
||||
}
|
||||
}
|
||||
`;
|
||||
|
||||
const ast = makeAst(styles);
|
||||
expect(ast.rules.length).toEqual(1);
|
||||
|
||||
const rule = <CssMediaQueryRuleAst>ast.rules[0];
|
||||
assertTokens(rule.query.tokens, ['all', 'and', '(', 'max-width', ':', '100', 'px', ')']);
|
||||
|
||||
const block = <CssBlockAst>rule.block;
|
||||
expect(block.entries.length).toEqual(1);
|
||||
|
||||
const rule2 = <CssSelectorRuleAst>block.entries[0];
|
||||
expect(rule2.selectors[0].strValue).toEqual('.selector');
|
||||
|
||||
const block2 = <CssBlockAst>rule2.block;
|
||||
expect(block2.entries.length).toEqual(1);
|
||||
});
|
||||
|
||||
it('should parse inline CSS values', () => {
|
||||
const styles = `
|
||||
@import url('remote.css');
|
||||
@charset "UTF-8";
|
||||
@namespace ng url(http://angular.io/namespace/ng);
|
||||
`;
|
||||
|
||||
const ast = makeAst(styles);
|
||||
|
||||
const importRule = <CssInlineRuleAst>ast.rules[0];
|
||||
expect(importRule.type).toEqual(BlockType.Import);
|
||||
assertTokens(importRule.value.tokens, ['url', '(', 'remote', '.', 'css', ')']);
|
||||
|
||||
const charsetRule = <CssInlineRuleAst>ast.rules[1];
|
||||
expect(charsetRule.type).toEqual(BlockType.Charset);
|
||||
assertTokens(charsetRule.value.tokens, ['UTF-8']);
|
||||
|
||||
const namespaceRule = <CssInlineRuleAst>ast.rules[2];
|
||||
expect(namespaceRule.type).toEqual(BlockType.Namespace);
|
||||
assertTokens(
|
||||
namespaceRule.value.tokens, ['ng', 'url', '(', 'http://angular.io/namespace/ng', ')']);
|
||||
});
|
||||
|
||||
it('should parse CSS values that contain functions and leave the inner function data untokenized',
|
||||
() => {
|
||||
const styles = `
|
||||
.class {
|
||||
background: url(matias.css);
|
||||
animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
|
||||
height: calc(100% - 50px);
|
||||
background-image: linear-gradient( 45deg, rgba(100, 0, 0, 0.5), black );
|
||||
}
|
||||
`;
|
||||
|
||||
const ast = makeAst(styles);
|
||||
expect(ast.rules.length).toEqual(1);
|
||||
|
||||
const defs = (<CssSelectorRuleAst>ast.rules[0]).block.entries;
|
||||
expect(defs.length).toEqual(4);
|
||||
|
||||
assertTokens((<CssDefinitionAst>defs[0]).value.tokens, ['url', '(', 'matias.css', ')']);
|
||||
assertTokens(
|
||||
(<CssDefinitionAst>defs[1]).value.tokens,
|
||||
['cubic-bezier', '(', '0.755, 0.050, 0.855, 0.060', ')']);
|
||||
assertTokens((<CssDefinitionAst>defs[2]).value.tokens, ['calc', '(', '100% - 50px', ')']);
|
||||
assertTokens(
|
||||
(<CssDefinitionAst>defs[3]).value.tokens,
|
||||
['linear-gradient', '(', '45deg, rgba(100, 0, 0, 0.5), black', ')']);
|
||||
});
|
||||
|
||||
it('should parse un-named block-level CSS values', () => {
|
||||
const styles = `
|
||||
@font-face {
|
||||
font-family: "Matias";
|
||||
font-weight: bold;
|
||||
src: url(font-face.ttf);
|
||||
}
|
||||
@viewport {
|
||||
max-width: 100px;
|
||||
min-height: 1000px;
|
||||
}
|
||||
`;
|
||||
|
||||
const ast = makeAst(styles);
|
||||
|
||||
const fontFaceRule = <CssBlockRuleAst>ast.rules[0];
|
||||
expect(fontFaceRule.type).toEqual(BlockType.FontFace);
|
||||
expect(fontFaceRule.block.entries.length).toEqual(3);
|
||||
|
||||
const viewportRule = <CssBlockRuleAst>ast.rules[1];
|
||||
expect(viewportRule.type).toEqual(BlockType.Viewport);
|
||||
expect(viewportRule.block.entries.length).toEqual(2);
|
||||
});
|
||||
|
||||
it('should parse multiple levels of semicolons', () => {
|
||||
const styles = `
|
||||
;;;
|
||||
@import url('something something')
|
||||
;;;;;;;;
|
||||
;;;;;;;;
|
||||
;@font-face {
|
||||
;src : url(font-face.ttf);;;;;;;;
|
||||
;;;-webkit-animation:my-animation
|
||||
};;;
|
||||
@media all and (max-width:100px)
|
||||
{;
|
||||
.selector {prop: value123;};
|
||||
;.selector2{prop:1}}
|
||||
`;
|
||||
|
||||
const ast = makeAst(styles);
|
||||
|
||||
const importRule = <CssInlineRuleAst>ast.rules[0];
|
||||
expect(importRule.type).toEqual(BlockType.Import);
|
||||
assertTokens(importRule.value.tokens, ['url', '(', 'something something', ')']);
|
||||
|
||||
const fontFaceRule = <CssBlockRuleAst>ast.rules[1];
|
||||
expect(fontFaceRule.type).toEqual(BlockType.FontFace);
|
||||
expect(fontFaceRule.block.entries.length).toEqual(2);
|
||||
|
||||
const mediaQueryRule = <CssMediaQueryRuleAst>ast.rules[2];
|
||||
assertTokens(
|
||||
mediaQueryRule.query.tokens, ['all', 'and', '(', 'max-width', ':', '100', 'px', ')']);
|
||||
expect(mediaQueryRule.block.entries.length).toEqual(2);
|
||||
});
|
||||
|
||||
it('should throw an error if an unknown @value block rule is parsed', () => {
|
||||
const styles = `
|
||||
@matias { hello: there; }
|
||||
`;
|
||||
|
||||
expect(() => {
|
||||
makeAst(styles);
|
||||
}).toThrowError(/^CSS Parse Error: The CSS "at" rule "@matias" is not allowed to used here/g);
|
||||
});
|
||||
|
||||
it('should parse empty rules', () => {
|
||||
const styles = `
|
||||
.empty-rule { }
|
||||
.somewhat-empty-rule { /* property: value; */ }
|
||||
.non-empty-rule { property: value; }
|
||||
`;
|
||||
|
||||
const ast = makeAst(styles);
|
||||
|
||||
const rules = ast.rules;
|
||||
expect((<CssSelectorRuleAst>rules[0]).block.entries.length).toEqual(0);
|
||||
expect((<CssSelectorRuleAst>rules[1]).block.entries.length).toEqual(0);
|
||||
expect((<CssSelectorRuleAst>rules[2]).block.entries.length).toEqual(1);
|
||||
});
|
||||
|
||||
it('should parse the @document rule', () => {
|
||||
const styles = `
|
||||
@document url(http://www.w3.org/),
|
||||
url-prefix(http://www.w3.org/Style/),
|
||||
domain(mozilla.org),
|
||||
regexp("https:.*")
|
||||
{
|
||||
/* CSS rules here apply to:
|
||||
- The page "http://www.w3.org/".
|
||||
- Any page whose URL begins with "http://www.w3.org/Style/"
|
||||
- Any page whose URL's host is "mozilla.org" or ends with
|
||||
".mozilla.org"
|
||||
- Any page whose URL starts with "https:" */
|
||||
|
||||
/* make the above-mentioned pages really ugly */
|
||||
body {
|
||||
color: purple;
|
||||
background: yellow;
|
||||
}
|
||||
}
|
||||
`;
|
||||
|
||||
const ast = makeAst(styles);
|
||||
|
||||
const rules = ast.rules;
|
||||
const documentRule = <CssBlockDefinitionRuleAst>rules[0];
|
||||
expect(documentRule.type).toEqual(BlockType.Document);
|
||||
|
||||
const rule = <CssSelectorRuleAst>documentRule.block.entries[0];
|
||||
expect(rule.strValue).toEqual('body');
|
||||
});
|
||||
|
||||
it('should parse the @page rule', () => {
|
||||
const styles = `
|
||||
@page one {
|
||||
.selector { prop: value; }
|
||||
}
|
||||
@page two {
|
||||
.selector2 { prop: value2; }
|
||||
}
|
||||
`;
|
||||
|
||||
const ast = makeAst(styles);
|
||||
|
||||
const rules = ast.rules;
|
||||
|
||||
const pageRule1 = <CssBlockDefinitionRuleAst>rules[0];
|
||||
expect(pageRule1.query.strValue).toEqual('@page one');
|
||||
expect(pageRule1.query.tokens[0].strValue).toEqual('one');
|
||||
expect(pageRule1.type).toEqual(BlockType.Page);
|
||||
|
||||
const pageRule2 = <CssBlockDefinitionRuleAst>rules[1];
|
||||
expect(pageRule2.query.strValue).toEqual('@page two');
|
||||
expect(pageRule2.query.tokens[0].strValue).toEqual('two');
|
||||
expect(pageRule2.type).toEqual(BlockType.Page);
|
||||
|
||||
const selectorOne = <CssSelectorRuleAst>pageRule1.block.entries[0];
|
||||
expect(selectorOne.strValue).toEqual('.selector');
|
||||
|
||||
const selectorTwo = <CssSelectorRuleAst>pageRule2.block.entries[0];
|
||||
expect(selectorTwo.strValue).toEqual('.selector2');
|
||||
});
|
||||
|
||||
it('should parse the @supports rule', () => {
|
||||
const styles = `
|
||||
@supports (animation-name: "rotate") {
|
||||
a:hover { animation: rotate 1s; }
|
||||
}
|
||||
`;
|
||||
|
||||
const ast = makeAst(styles);
|
||||
|
||||
const rules = ast.rules;
|
||||
|
||||
const supportsRule = <CssBlockDefinitionRuleAst>rules[0];
|
||||
assertTokens(supportsRule.query.tokens, ['(', 'animation-name', ':', 'rotate', ')']);
|
||||
expect(supportsRule.type).toEqual(BlockType.Supports);
|
||||
|
||||
const selectorOne = <CssSelectorRuleAst>supportsRule.block.entries[0];
|
||||
expect(selectorOne.strValue).toEqual('a:hover');
|
||||
});
|
||||
|
||||
it('should collect multiple errors during parsing', () => {
|
||||
const styles = `
|
||||
.class$value { something: something }
|
||||
@custom { something: something }
|
||||
#id { cool^: value }
|
||||
`;
|
||||
|
||||
const output = parse(styles);
|
||||
expect(output.errors.length).toEqual(3);
|
||||
});
|
||||
|
||||
it('should recover from selector errors and continue parsing', () => {
|
||||
const styles = `
|
||||
tag& { key: value; }
|
||||
.%tag { key: value; }
|
||||
#tag$ { key: value; }
|
||||
`;
|
||||
|
||||
const output = parse(styles);
|
||||
const errors = output.errors;
|
||||
const ast = output.ast;
|
||||
|
||||
expect(errors.length).toEqual(3);
|
||||
|
||||
expect(ast.rules.length).toEqual(3);
|
||||
|
||||
const rule1 = <CssSelectorRuleAst>ast.rules[0];
|
||||
expect(rule1.selectors[0].strValue).toEqual('tag&');
|
||||
expect(rule1.block.entries.length).toEqual(1);
|
||||
|
||||
const rule2 = <CssSelectorRuleAst>ast.rules[1];
|
||||
expect(rule2.selectors[0].strValue).toEqual('.%tag');
|
||||
expect(rule2.block.entries.length).toEqual(1);
|
||||
|
||||
const rule3 = <CssSelectorRuleAst>ast.rules[2];
|
||||
expect(rule3.selectors[0].strValue).toEqual('#tag$');
|
||||
expect(rule3.block.entries.length).toEqual(1);
|
||||
});
|
||||
|
||||
it('should throw an error when parsing invalid CSS Selectors', () => {
|
||||
const styles = '.class[[prop%=value}] { style: val; }';
|
||||
const output = parse(styles);
|
||||
const errors = output.errors;
|
||||
|
||||
expect(errors.length).toEqual(3);
|
||||
|
||||
expect(errors[0].msg).toMatch(/Unexpected character \[\[\] at column 0:7/g);
|
||||
|
||||
expect(errors[1].msg).toMatch(/Unexpected character \[%\] at column 0:12/g);
|
||||
|
||||
expect(errors[2].msg).toMatch(/Unexpected character \[}\] at column 0:19/g);
|
||||
});
|
||||
|
||||
it('should throw an error if an attribute selector is not closed properly', () => {
|
||||
const styles = '.class[prop=value { style: val; }';
|
||||
const output = parse(styles);
|
||||
const errors = output.errors;
|
||||
|
||||
expect(errors[0].msg).toMatch(/Unbalanced CSS attribute selector at column 0:12/g);
|
||||
});
|
||||
|
||||
it('should throw an error if a pseudo function selector is not closed properly', () => {
|
||||
const styles = 'body:lang(en { key:value; }';
|
||||
const output = parse(styles);
|
||||
const errors = output.errors;
|
||||
|
||||
expect(errors[0].msg)
|
||||
.toMatch(/Character does not match expected Character value \("{" should match "\)"\)/);
|
||||
});
|
||||
|
||||
it('should raise an error when a semi colon is missing from a CSS style/pair that isn\'t the last entry',
|
||||
() => {
|
||||
const styles = `.class {
|
||||
color: red
|
||||
background: blue
|
||||
}`;
|
||||
|
||||
const output = parse(styles);
|
||||
const errors = output.errors;
|
||||
|
||||
expect(errors.length).toEqual(1);
|
||||
|
||||
expect(errors[0].msg)
|
||||
.toMatch(/The CSS key\/value definition did not end with a semicolon at column 1:15/g);
|
||||
});
|
||||
|
||||
it('should parse the inner value of a :not() pseudo-selector as a CSS selector', () => {
|
||||
const styles = `div:not(.ignore-this-div) {
|
||||
prop: value;
|
||||
}`;
|
||||
|
||||
const output = parse(styles);
|
||||
const errors = output.errors;
|
||||
const ast = output.ast;
|
||||
|
||||
expect(errors.length).toEqual(0);
|
||||
|
||||
const rule1 = <CssSelectorRuleAst>ast.rules[0];
|
||||
expect(rule1.selectors.length).toEqual(1);
|
||||
|
||||
const simpleSelector = rule1.selectors[0].selectorParts[0];
|
||||
assertTokens(simpleSelector.tokens, ['div']);
|
||||
|
||||
const pseudoSelector = simpleSelector.pseudoSelectors[0];
|
||||
expect(pseudoSelector.name).toEqual('not');
|
||||
assertTokens(pseudoSelector.tokens, ['.', 'ignore-this-div']);
|
||||
});
|
||||
|
||||
it('should parse the inner selectors of a :host-context selector', () => {
|
||||
const styles = `body > :host-context(.a, .b, .c:hover) {
|
||||
prop: value;
|
||||
}`;
|
||||
|
||||
const output = parse(styles);
|
||||
const errors = output.errors;
|
||||
const ast = output.ast;
|
||||
|
||||
expect(errors.length).toEqual(0);
|
||||
|
||||
const rule1 = <CssSelectorRuleAst>ast.rules[0];
|
||||
expect(rule1.selectors.length).toEqual(1);
|
||||
|
||||
const simpleSelector = rule1.selectors[0].selectorParts[1];
|
||||
const innerSelectors = simpleSelector.pseudoSelectors[0].innerSelectors;
|
||||
|
||||
assertTokens(innerSelectors[0].selectorParts[0].tokens, ['.', 'a']);
|
||||
assertTokens(innerSelectors[1].selectorParts[0].tokens, ['.', 'b']);
|
||||
|
||||
const finalSelector = innerSelectors[2].selectorParts[0];
|
||||
assertTokens(finalSelector.tokens, ['.', 'c', ':', 'hover']);
|
||||
assertTokens(finalSelector.pseudoSelectors[0].tokens, [':', 'hover']);
|
||||
});
|
||||
|
||||
it('should raise parse errors when CSS key/value pairs are invalid', () => {
|
||||
const styles = `.class {
|
||||
background color: value;
|
||||
color: value
|
||||
font-size;
|
||||
font-weight
|
||||
}`;
|
||||
|
||||
const output = parse(styles);
|
||||
const errors = output.errors;
|
||||
|
||||
expect(errors.length).toEqual(4);
|
||||
|
||||
expect(errors[0].msg)
|
||||
.toMatch(
|
||||
/Identifier does not match expected Character value \("color" should match ":"\) at column 1:19/g);
|
||||
|
||||
expect(errors[1].msg)
|
||||
.toMatch(/The CSS key\/value definition did not end with a semicolon at column 2:15/g);
|
||||
|
||||
expect(errors[2].msg)
|
||||
.toMatch(/The CSS property was not paired with a style value at column 3:8/g);
|
||||
|
||||
expect(errors[3].msg)
|
||||
.toMatch(/The CSS property was not paired with a style value at column 4:8/g);
|
||||
});
|
||||
|
||||
it('should recover from CSS key/value parse errors', () => {
|
||||
const styles = `
|
||||
.problem-class { background color: red; color: white; }
|
||||
.good-boy-class { background-color: red; color: white; }
|
||||
`;
|
||||
|
||||
const output = parse(styles);
|
||||
const ast = output.ast;
|
||||
|
||||
expect(ast.rules.length).toEqual(2);
|
||||
|
||||
const rule1 = <CssSelectorRuleAst>ast.rules[0];
|
||||
expect(rule1.block.entries.length).toEqual(2);
|
||||
|
||||
const style1 = <CssDefinitionAst>rule1.block.entries[0];
|
||||
expect(style1.property.strValue).toEqual('background color');
|
||||
assertTokens(style1.value.tokens, ['red']);
|
||||
|
||||
const style2 = <CssDefinitionAst>rule1.block.entries[1];
|
||||
expect(style2.property.strValue).toEqual('color');
|
||||
assertTokens(style2.value.tokens, ['white']);
|
||||
});
|
||||
|
||||
describe('location offsets', () => {
|
||||
let styles: string;
|
||||
|
||||
function assertMatchesOffsetAndChar(
|
||||
location: ParseLocation, expectedOffset: number, expectedChar: string): void {
|
||||
expect(location.offset).toEqual(expectedOffset);
|
||||
expect(styles[expectedOffset]).toEqual(expectedChar);
|
||||
}
|
||||
|
||||
it('should collect the source span location of each AST node with regular selectors', () => {
|
||||
styles = '.problem-class { border-top-right: 1px; color: white; }\n';
|
||||
styles += '#good-boy-rule_ { background-color: #fe4; color: teal; }';
|
||||
|
||||
const output = parse(styles);
|
||||
const ast = output.ast;
|
||||
assertMatchesOffsetAndChar(ast.location.start, 0, '.');
|
||||
assertMatchesOffsetAndChar(ast.location.end, 111, '}');
|
||||
|
||||
const rule1 = <CssSelectorRuleAst>ast.rules[0];
|
||||
assertMatchesOffsetAndChar(rule1.location.start, 0, '.');
|
||||
assertMatchesOffsetAndChar(rule1.location.end, 54, '}');
|
||||
|
||||
const rule2 = <CssSelectorRuleAst>ast.rules[1];
|
||||
assertMatchesOffsetAndChar(rule2.location.start, 56, '#');
|
||||
assertMatchesOffsetAndChar(rule2.location.end, 111, '}');
|
||||
|
||||
const selector1 = rule1.selectors[0];
|
||||
assertMatchesOffsetAndChar(selector1.location.start, 0, '.');
|
||||
assertMatchesOffsetAndChar(selector1.location.end, 1, 'p'); // problem-class
|
||||
|
||||
const selector2 = rule2.selectors[0];
|
||||
assertMatchesOffsetAndChar(selector2.location.start, 56, '#');
|
||||
assertMatchesOffsetAndChar(selector2.location.end, 57, 'g'); // good-boy-rule_
|
||||
|
||||
const block1 = rule1.block;
|
||||
assertMatchesOffsetAndChar(block1.location.start, 15, '{');
|
||||
assertMatchesOffsetAndChar(block1.location.end, 54, '}');
|
||||
|
||||
const block2 = rule2.block;
|
||||
assertMatchesOffsetAndChar(block2.location.start, 72, '{');
|
||||
assertMatchesOffsetAndChar(block2.location.end, 111, '}');
|
||||
|
||||
const block1def1 = <CssDefinitionAst>block1.entries[0];
|
||||
assertMatchesOffsetAndChar(block1def1.location.start, 17, 'b'); // border-top-right
|
||||
assertMatchesOffsetAndChar(block1def1.location.end, 36, 'p'); // px
|
||||
|
||||
const block1def2 = <CssDefinitionAst>block1.entries[1];
|
||||
assertMatchesOffsetAndChar(block1def2.location.start, 40, 'c'); // color
|
||||
assertMatchesOffsetAndChar(block1def2.location.end, 47, 'w'); // white
|
||||
|
||||
const block2def1 = <CssDefinitionAst>block2.entries[0];
|
||||
assertMatchesOffsetAndChar(block2def1.location.start, 74, 'b'); // background-color
|
||||
assertMatchesOffsetAndChar(block2def1.location.end, 93, 'f'); // fe4
|
||||
|
||||
const block2def2 = <CssDefinitionAst>block2.entries[1];
|
||||
assertMatchesOffsetAndChar(block2def2.location.start, 98, 'c'); // color
|
||||
assertMatchesOffsetAndChar(block2def2.location.end, 105, 't'); // teal
|
||||
|
||||
const block1value1 = block1def1.value;
|
||||
assertMatchesOffsetAndChar(block1value1.location.start, 35, '1');
|
||||
assertMatchesOffsetAndChar(block1value1.location.end, 36, 'p');
|
||||
|
||||
const block1value2 = block1def2.value;
|
||||
assertMatchesOffsetAndChar(block1value2.location.start, 47, 'w');
|
||||
assertMatchesOffsetAndChar(block1value2.location.end, 47, 'w');
|
||||
|
||||
const block2value1 = block2def1.value;
|
||||
assertMatchesOffsetAndChar(block2value1.location.start, 92, '#');
|
||||
assertMatchesOffsetAndChar(block2value1.location.end, 93, 'f');
|
||||
|
||||
const block2value2 = block2def2.value;
|
||||
assertMatchesOffsetAndChar(block2value2.location.start, 105, 't');
|
||||
assertMatchesOffsetAndChar(block2value2.location.end, 105, 't');
|
||||
});
|
||||
|
||||
it('should collect the source span location of each AST node with media query data', () => {
|
||||
styles = '@media (all and max-width: 100px) { a { display:none; } }';
|
||||
|
||||
const output = parse(styles);
|
||||
const ast = output.ast;
|
||||
|
||||
const mediaQuery = <CssMediaQueryRuleAst>ast.rules[0];
|
||||
assertMatchesOffsetAndChar(mediaQuery.location.start, 0, '@');
|
||||
assertMatchesOffsetAndChar(mediaQuery.location.end, 56, '}');
|
||||
|
||||
const predicate = mediaQuery.query;
|
||||
assertMatchesOffsetAndChar(predicate.location.start, 0, '@');
|
||||
assertMatchesOffsetAndChar(predicate.location.end, 32, ')');
|
||||
|
||||
const rule = <CssSelectorRuleAst>mediaQuery.block.entries[0];
|
||||
assertMatchesOffsetAndChar(rule.location.start, 36, 'a');
|
||||
assertMatchesOffsetAndChar(rule.location.end, 54, '}');
|
||||
});
|
||||
|
||||
it('should collect the source span location of each AST node with keyframe data', () => {
|
||||
styles = '@keyframes rotateAndZoomOut { ';
|
||||
styles += 'from { transform: rotate(0deg); } ';
|
||||
styles += '100% { transform: rotate(360deg) scale(2); }';
|
||||
styles += '}';
|
||||
|
||||
const output = parse(styles);
|
||||
const ast = output.ast;
|
||||
|
||||
const keyframes = <CssKeyframeRuleAst>ast.rules[0];
|
||||
assertMatchesOffsetAndChar(keyframes.location.start, 0, '@');
|
||||
assertMatchesOffsetAndChar(keyframes.location.end, 108, '}');
|
||||
|
||||
const step1 = <CssKeyframeDefinitionAst>keyframes.block.entries[0];
|
||||
assertMatchesOffsetAndChar(step1.location.start, 30, 'f');
|
||||
assertMatchesOffsetAndChar(step1.location.end, 62, '}');
|
||||
|
||||
const step2 = <CssKeyframeDefinitionAst>keyframes.block.entries[1];
|
||||
assertMatchesOffsetAndChar(step2.location.start, 64, '1');
|
||||
assertMatchesOffsetAndChar(step2.location.end, 107, '}');
|
||||
});
|
||||
|
||||
it('should collect the source span location of each AST node with an inline rule', () => {
|
||||
styles = '@import url(something.css)';
|
||||
|
||||
const output = parse(styles);
|
||||
const ast = output.ast;
|
||||
|
||||
const rule = <CssInlineRuleAst>ast.rules[0];
|
||||
assertMatchesOffsetAndChar(rule.location.start, 0, '@');
|
||||
assertMatchesOffsetAndChar(rule.location.end, 25, ')');
|
||||
|
||||
const value = rule.value;
|
||||
assertMatchesOffsetAndChar(value.location.start, 8, 'u');
|
||||
assertMatchesOffsetAndChar(value.location.end, 25, ')');
|
||||
});
|
||||
|
||||
it('should property collect the start/end locations with an invalid stylesheet', () => {
|
||||
styles = '#id { something: value';
|
||||
|
||||
const output = parse(styles);
|
||||
const ast = output.ast;
|
||||
|
||||
assertMatchesOffsetAndChar(ast.location.start, 0, '#');
|
||||
assertMatchesOffsetAndChar(ast.location.end, 22, undefined!);
|
||||
});
|
||||
});
|
||||
|
||||
it('should parse minified CSS content properly', () => {
|
||||
// this code was taken from the angular.io webpage's CSS code
|
||||
const styles = `
|
||||
.is-hidden{display:none!important}
|
||||
.is-visible{display:block!important}
|
||||
.is-visually-hidden{height:1px;width:1px;overflow:hidden;opacity:0.01;position:absolute;bottom:0;right:0;z-index:1}
|
||||
.grid-fluid,.grid-fixed{margin:0 auto}
|
||||
.grid-fluid .c1,.grid-fixed .c1,.grid-fluid .c2,.grid-fixed .c2,.grid-fluid .c3,.grid-fixed .c3,.grid-fluid .c4,.grid-fixed .c4,.grid-fluid .c5,.grid-fixed .c5,.grid-fluid .c6,.grid-fixed .c6,.grid-fluid .c7,.grid-fixed .c7,.grid-fluid .c8,.grid-fixed .c8,.grid-fluid .c9,.grid-fixed .c9,.grid-fluid .c10,.grid-fixed .c10,.grid-fluid .c11,.grid-fixed .c11,.grid-fluid .c12,.grid-fixed .c12{display:inline;float:left}
|
||||
.grid-fluid .c1.grid-right,.grid-fixed .c1.grid-right,.grid-fluid .c2.grid-right,.grid-fixed .c2.grid-right,.grid-fluid .c3.grid-right,.grid-fixed .c3.grid-right,.grid-fluid .c4.grid-right,.grid-fixed .c4.grid-right,.grid-fluid .c5.grid-right,.grid-fixed .c5.grid-right,.grid-fluid .c6.grid-right,.grid-fixed .c6.grid-right,.grid-fluid .c7.grid-right,.grid-fixed .c7.grid-right,.grid-fluid .c8.grid-right,.grid-fixed .c8.grid-right,.grid-fluid .c9.grid-right,.grid-fixed .c9.grid-right,.grid-fluid .c10.grid-right,.grid-fixed .c10.grid-right,.grid-fluid .c11.grid-right,.grid-fixed .c11.grid-right,.grid-fluid .c12.grid-right,.grid-fixed .c12.grid-right{float:right}
|
||||
.grid-fluid .c1.nb,.grid-fixed .c1.nb,.grid-fluid .c2.nb,.grid-fixed .c2.nb,.grid-fluid .c3.nb,.grid-fixed .c3.nb,.grid-fluid .c4.nb,.grid-fixed .c4.nb,.grid-fluid .c5.nb,.grid-fixed .c5.nb,.grid-fluid .c6.nb,.grid-fixed .c6.nb,.grid-fluid .c7.nb,.grid-fixed .c7.nb,.grid-fluid .c8.nb,.grid-fixed .c8.nb,.grid-fluid .c9.nb,.grid-fixed .c9.nb,.grid-fluid .c10.nb,.grid-fixed .c10.nb,.grid-fluid .c11.nb,.grid-fixed .c11.nb,.grid-fluid .c12.nb,.grid-fixed .c12.nb{margin-left:0}
|
||||
.grid-fluid .c1.na,.grid-fixed .c1.na,.grid-fluid .c2.na,.grid-fixed .c2.na,.grid-fluid .c3.na,.grid-fixed .c3.na,.grid-fluid .c4.na,.grid-fixed .c4.na,.grid-fluid .c5.na,.grid-fixed .c5.na,.grid-fluid .c6.na,.grid-fixed .c6.na,.grid-fluid .c7.na,.grid-fixed .c7.na,.grid-fluid .c8.na,.grid-fixed .c8.na,.grid-fluid .c9.na,.grid-fixed .c9.na,.grid-fluid .c10.na,.grid-fixed .c10.na,.grid-fluid .c11.na,.grid-fixed .c11.na,.grid-fluid .c12.na,.grid-fixed .c12.na{margin-right:0}
|
||||
`;
|
||||
|
||||
const output = parse(styles);
|
||||
const errors = output.errors;
|
||||
expect(errors.length).toEqual(0);
|
||||
|
||||
const ast = output.ast;
|
||||
expect(ast.rules.length).toEqual(8);
|
||||
});
|
||||
|
||||
it('should parse a snippet of keyframe code from animate.css properly', () => {
|
||||
// this code was taken from the angular.io webpage's CSS code
|
||||
const styles = `
|
||||
@charset "UTF-8";
|
||||
|
||||
/*!
|
||||
* animate.css -http://daneden.me/animate
|
||||
* Version - 3.5.1
|
||||
* Licensed under the MIT license - http://opensource.org/licenses/MIT
|
||||
*
|
||||
* Copyright (c) 2016 Daniel Eden
|
||||
*/
|
||||
|
||||
.animated {
|
||||
-webkit-animation-duration: 1s;
|
||||
animation-duration: 1s;
|
||||
-webkit-animation-fill-mode: both;
|
||||
animation-fill-mode: both;
|
||||
}
|
||||
|
||||
.animated.infinite {
|
||||
-webkit-animation-iteration-count: infinite;
|
||||
animation-iteration-count: infinite;
|
||||
}
|
||||
|
||||
.animated.hinge {
|
||||
-webkit-animation-duration: 2s;
|
||||
animation-duration: 2s;
|
||||
}
|
||||
|
||||
.animated.flipOutX,
|
||||
.animated.flipOutY,
|
||||
.animated.bounceIn,
|
||||
.animated.bounceOut {
|
||||
-webkit-animation-duration: .75s;
|
||||
animation-duration: .75s;
|
||||
}
|
||||
|
||||
@-webkit-keyframes bounce {
|
||||
from, 20%, 53%, 80%, to {
|
||||
-webkit-animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
|
||||
animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
|
||||
-webkit-transform: translate3d(0,0,0);
|
||||
transform: translate3d(0,0,0);
|
||||
}
|
||||
|
||||
40%, 43% {
|
||||
-webkit-animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
|
||||
animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
|
||||
-webkit-transform: translate3d(0, -30px, 0);
|
||||
transform: translate3d(0, -30px, 0);
|
||||
}
|
||||
|
||||
70% {
|
||||
-webkit-animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
|
||||
animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
|
||||
-webkit-transform: translate3d(0, -15px, 0);
|
||||
transform: translate3d(0, -15px, 0);
|
||||
}
|
||||
|
||||
90% {
|
||||
-webkit-transform: translate3d(0,-4px,0);
|
||||
transform: translate3d(0,-4px,0);
|
||||
}
|
||||
}
|
||||
`;
|
||||
|
||||
const output = parse(styles);
|
||||
const errors = output.errors;
|
||||
expect(errors.length).toEqual(0);
|
||||
|
||||
const ast = output.ast;
|
||||
expect(ast.rules.length).toEqual(6);
|
||||
|
||||
const finalRule = <CssBlockRuleAst>ast.rules[ast.rules.length - 1];
|
||||
expect(finalRule.type).toEqual(BlockType.Keyframes);
|
||||
expect(finalRule.block.entries.length).toEqual(4);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
|
@ -1,333 +0,0 @@
|
|||
/**
|
||||
* @license
|
||||
* Copyright Google LLC 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 {beforeEach, describe, expect, it} from '../../../core/testing/src/testing_internal';
|
||||
import {CssAst, CssAstVisitor, CssAtRulePredicateAst, CssBlockAst, CssDefinitionAst, CssInlineRuleAst, CssKeyframeDefinitionAst, CssKeyframeRuleAst, CssMediaQueryRuleAst, CssPseudoSelectorAst, CssRuleAst, CssSelectorAst, CssSelectorRuleAst, CssSimpleSelectorAst, CssStylesBlockAst, CssStyleSheetAst, CssStyleValueAst, CssUnknownRuleAst, CssUnknownTokenListAst} from '../../src/css_parser/css_ast';
|
||||
import {BlockType, CssParseError, CssParser, CssToken} from '../../src/css_parser/css_parser';
|
||||
|
||||
function _assertTokens(tokens: CssToken[], valuesArr: string[]): void {
|
||||
expect(tokens.length).toEqual(valuesArr.length);
|
||||
for (let i = 0; i < tokens.length; i++) {
|
||||
expect(tokens[i].strValue == valuesArr[i]);
|
||||
}
|
||||
}
|
||||
|
||||
class MyVisitor implements CssAstVisitor {
|
||||
captures: {[key: string]: any[]} = {};
|
||||
|
||||
/**
|
||||
* @internal
|
||||
*/
|
||||
_capture(method: string, ast: CssAst, context: any) {
|
||||
this.captures[method] = this.captures[method] || [];
|
||||
this.captures[method].push([ast, context]);
|
||||
}
|
||||
|
||||
constructor(ast: CssStyleSheetAst, context: any) {
|
||||
ast.visit(this, context);
|
||||
}
|
||||
|
||||
visitCssValue(ast: CssStyleValueAst, context: any): void {
|
||||
this._capture('visitCssValue', ast, context);
|
||||
}
|
||||
|
||||
visitCssInlineRule(ast: CssInlineRuleAst, context: any): void {
|
||||
this._capture('visitCssInlineRule', ast, context);
|
||||
}
|
||||
|
||||
visitCssAtRulePredicate(ast: CssAtRulePredicateAst, context: any): void {
|
||||
this._capture('visitCssAtRulePredicate', ast, context);
|
||||
}
|
||||
|
||||
visitCssKeyframeRule(ast: CssKeyframeRuleAst, context: any): void {
|
||||
this._capture('visitCssKeyframeRule', ast, context);
|
||||
ast.block.visit(this, context);
|
||||
}
|
||||
|
||||
visitCssKeyframeDefinition(ast: CssKeyframeDefinitionAst, context: any): void {
|
||||
this._capture('visitCssKeyframeDefinition', ast, context);
|
||||
ast.block.visit(this, context);
|
||||
}
|
||||
|
||||
visitCssMediaQueryRule(ast: CssMediaQueryRuleAst, context: any): void {
|
||||
this._capture('visitCssMediaQueryRule', ast, context);
|
||||
ast.query.visit(this, context);
|
||||
ast.block.visit(this, context);
|
||||
}
|
||||
|
||||
visitCssSelectorRule(ast: CssSelectorRuleAst, context: any): void {
|
||||
this._capture('visitCssSelectorRule', ast, context);
|
||||
ast.selectors.forEach((selAst: CssSelectorAst) => {
|
||||
selAst.visit(this, context);
|
||||
});
|
||||
ast.block.visit(this, context);
|
||||
}
|
||||
|
||||
visitCssSelector(ast: CssSelectorAst, context: any): void {
|
||||
this._capture('visitCssSelector', ast, context);
|
||||
ast.selectorParts.forEach((simpleAst: CssSimpleSelectorAst) => {
|
||||
simpleAst.visit(this, context);
|
||||
});
|
||||
}
|
||||
|
||||
visitCssSimpleSelector(ast: CssSimpleSelectorAst, context: any): void {
|
||||
this._capture('visitCssSimpleSelector', ast, context);
|
||||
ast.pseudoSelectors.forEach((pseudoAst: CssPseudoSelectorAst) => {
|
||||
pseudoAst.visit(this, context);
|
||||
});
|
||||
}
|
||||
|
||||
visitCssDefinition(ast: CssDefinitionAst, context: any): void {
|
||||
this._capture('visitCssDefinition', ast, context);
|
||||
ast.value.visit(this, context);
|
||||
}
|
||||
|
||||
visitCssBlock(ast: CssBlockAst, context: any): void {
|
||||
this._capture('visitCssBlock', ast, context);
|
||||
ast.entries.forEach((entryAst: CssAst) => {
|
||||
entryAst.visit(this, context);
|
||||
});
|
||||
}
|
||||
|
||||
visitCssStylesBlock(ast: CssStylesBlockAst, context: any): void {
|
||||
this._capture('visitCssStylesBlock', ast, context);
|
||||
ast.definitions.forEach((definitionAst: CssDefinitionAst) => {
|
||||
definitionAst.visit(this, context);
|
||||
});
|
||||
}
|
||||
|
||||
visitCssStyleSheet(ast: CssStyleSheetAst, context: any): void {
|
||||
this._capture('visitCssStyleSheet', ast, context);
|
||||
ast.rules.forEach((ruleAst: CssRuleAst) => {
|
||||
ruleAst.visit(this, context);
|
||||
});
|
||||
}
|
||||
|
||||
visitCssUnknownRule(ast: CssUnknownRuleAst, context: any): void {
|
||||
this._capture('visitCssUnknownRule', ast, context);
|
||||
}
|
||||
|
||||
visitCssUnknownTokenList(ast: CssUnknownTokenListAst, context: any): void {
|
||||
this._capture('visitCssUnknownTokenList', ast, context);
|
||||
}
|
||||
|
||||
visitCssPseudoSelector(ast: CssPseudoSelectorAst, context: any): void {
|
||||
this._capture('visitCssPseudoSelector', ast, context);
|
||||
}
|
||||
}
|
||||
|
||||
function _getCaptureAst(capture: any[], index = 0): CssAst {
|
||||
return <CssAst>capture[index][0];
|
||||
}
|
||||
|
||||
(function() {
|
||||
function parse(cssCode: string, ignoreErrors: boolean = false) {
|
||||
const output = new CssParser().parse(cssCode, 'some-fake-css-file.css');
|
||||
const errors = output.errors;
|
||||
if (errors.length > 0 && !ignoreErrors) {
|
||||
throw new Error(errors.map((error: CssParseError) => error.msg).join(', '));
|
||||
}
|
||||
return output.ast;
|
||||
}
|
||||
|
||||
describe('CSS parsing and visiting', () => {
|
||||
let ast: CssStyleSheetAst;
|
||||
const context = {};
|
||||
|
||||
beforeEach(() => {
|
||||
const cssCode = `
|
||||
.rule1 { prop1: value1 }
|
||||
.rule2 { prop2: value2 }
|
||||
|
||||
@media all (max-width: 100px) {
|
||||
#id { prop3 :value3; }
|
||||
}
|
||||
|
||||
@import url(file.css);
|
||||
|
||||
@keyframes rotate {
|
||||
from {
|
||||
prop4: value4;
|
||||
}
|
||||
50%, 100% {
|
||||
prop5: value5;
|
||||
}
|
||||
}
|
||||
`;
|
||||
ast = parse(cssCode);
|
||||
});
|
||||
|
||||
it('should parse and visit a stylesheet', () => {
|
||||
const visitor = new MyVisitor(ast, context);
|
||||
const captures = visitor.captures['visitCssStyleSheet'];
|
||||
|
||||
expect(captures.length).toEqual(1);
|
||||
|
||||
const capture = captures[0];
|
||||
expect(capture[0]).toEqual(ast);
|
||||
expect(capture[1]).toEqual(context);
|
||||
});
|
||||
|
||||
it('should parse and visit each of the stylesheet selectors', () => {
|
||||
const visitor = new MyVisitor(ast, context);
|
||||
const captures = visitor.captures['visitCssSelectorRule'];
|
||||
|
||||
expect(captures.length).toEqual(3);
|
||||
|
||||
const rule1 = <CssSelectorRuleAst>_getCaptureAst(captures, 0);
|
||||
expect(rule1).toEqual(ast.rules[0] as CssSelectorRuleAst);
|
||||
|
||||
const firstSelector = rule1.selectors[0];
|
||||
const firstSimpleSelector = firstSelector.selectorParts[0];
|
||||
_assertTokens(firstSimpleSelector.tokens, ['.', 'rule1']);
|
||||
|
||||
const rule2 = <CssSelectorRuleAst>_getCaptureAst(captures, 1);
|
||||
expect(rule2).toEqual(ast.rules[1] as CssSelectorRuleAst);
|
||||
|
||||
const secondSelector = rule2.selectors[0];
|
||||
const secondSimpleSelector = secondSelector.selectorParts[0];
|
||||
_assertTokens(secondSimpleSelector.tokens, ['.', 'rule2']);
|
||||
|
||||
const rule3 = <CssSelectorRuleAst>_getCaptureAst(captures, 2);
|
||||
expect(rule3).toEqual(
|
||||
(ast.rules[2] as CssSelectorRuleAst).block.entries[0] as CssSelectorRuleAst);
|
||||
|
||||
const thirdSelector = rule3.selectors[0];
|
||||
const thirdSimpleSelector = thirdSelector.selectorParts[0];
|
||||
_assertTokens(thirdSimpleSelector.tokens, ['#', 'rule3']);
|
||||
});
|
||||
|
||||
it('should parse and visit each of the stylesheet style key/value definitions', () => {
|
||||
const visitor = new MyVisitor(ast, context);
|
||||
const captures = visitor.captures['visitCssDefinition'];
|
||||
|
||||
expect(captures.length).toEqual(5);
|
||||
|
||||
const def1 = <CssDefinitionAst>_getCaptureAst(captures, 0);
|
||||
expect(def1.property.strValue).toEqual('prop1');
|
||||
expect(def1.value.tokens[0].strValue).toEqual('value1');
|
||||
|
||||
const def2 = <CssDefinitionAst>_getCaptureAst(captures, 1);
|
||||
expect(def2.property.strValue).toEqual('prop2');
|
||||
expect(def2.value.tokens[0].strValue).toEqual('value2');
|
||||
|
||||
const def3 = <CssDefinitionAst>_getCaptureAst(captures, 2);
|
||||
expect(def3.property.strValue).toEqual('prop3');
|
||||
expect(def3.value.tokens[0].strValue).toEqual('value3');
|
||||
|
||||
const def4 = <CssDefinitionAst>_getCaptureAst(captures, 3);
|
||||
expect(def4.property.strValue).toEqual('prop4');
|
||||
expect(def4.value.tokens[0].strValue).toEqual('value4');
|
||||
|
||||
const def5 = <CssDefinitionAst>_getCaptureAst(captures, 4);
|
||||
expect(def5.property.strValue).toEqual('prop5');
|
||||
expect(def5.value.tokens[0].strValue).toEqual('value5');
|
||||
});
|
||||
|
||||
it('should parse and visit the associated media query values', () => {
|
||||
const visitor = new MyVisitor(ast, context);
|
||||
const captures = visitor.captures['visitCssMediaQueryRule'];
|
||||
|
||||
expect(captures.length).toEqual(1);
|
||||
|
||||
const query1 = <CssMediaQueryRuleAst>_getCaptureAst(captures, 0);
|
||||
_assertTokens(query1.query.tokens, ['all', 'and', '(', 'max-width', '100', 'px', ')']);
|
||||
expect(query1.block.entries.length).toEqual(1);
|
||||
});
|
||||
|
||||
it('should capture the media query predicate', () => {
|
||||
const visitor = new MyVisitor(ast, context);
|
||||
const captures = visitor.captures['visitCssAtRulePredicate'];
|
||||
|
||||
expect(captures.length).toEqual(1);
|
||||
|
||||
const predicate = <CssAtRulePredicateAst>_getCaptureAst(captures, 0);
|
||||
expect(predicate.strValue).toEqual('@media all (max-width: 100px)');
|
||||
});
|
||||
|
||||
it('should parse and visit the associated "@inline" rule values', () => {
|
||||
const visitor = new MyVisitor(ast, context);
|
||||
const captures = visitor.captures['visitCssInlineRule'];
|
||||
|
||||
expect(captures.length).toEqual(1);
|
||||
|
||||
const inline1 = <CssInlineRuleAst>_getCaptureAst(captures, 0);
|
||||
expect(inline1.type).toEqual(BlockType.Import);
|
||||
_assertTokens(inline1.value.tokens, ['url', '(', 'file.css', ')']);
|
||||
});
|
||||
|
||||
it('should parse and visit the keyframe blocks', () => {
|
||||
const visitor = new MyVisitor(ast, context);
|
||||
const captures = visitor.captures['visitCssKeyframeRule'];
|
||||
|
||||
expect(captures.length).toEqual(1);
|
||||
|
||||
const keyframe1 = <CssKeyframeRuleAst>_getCaptureAst(captures, 0);
|
||||
expect(keyframe1.name!.strValue).toEqual('rotate');
|
||||
expect(keyframe1.block.entries.length).toEqual(2);
|
||||
});
|
||||
|
||||
it('should parse and visit the associated keyframe rules', () => {
|
||||
const visitor = new MyVisitor(ast, context);
|
||||
const captures = visitor.captures['visitCssKeyframeDefinition'];
|
||||
|
||||
expect(captures.length).toEqual(2);
|
||||
|
||||
const def1 = <CssKeyframeDefinitionAst>_getCaptureAst(captures, 0);
|
||||
_assertTokens(def1.steps, ['from']);
|
||||
expect(def1.block.entries.length).toEqual(1);
|
||||
|
||||
const def2 = <CssKeyframeDefinitionAst>_getCaptureAst(captures, 1);
|
||||
_assertTokens(def2.steps, ['50%', '100%']);
|
||||
expect(def2.block.entries.length).toEqual(1);
|
||||
});
|
||||
|
||||
it('should visit an unknown `@` rule', () => {
|
||||
const cssCode = `
|
||||
@someUnknownRule param {
|
||||
one two three
|
||||
}
|
||||
`;
|
||||
ast = parse(cssCode, true);
|
||||
const visitor = new MyVisitor(ast, context);
|
||||
const captures = visitor.captures['visitCssUnknownRule'];
|
||||
|
||||
expect(captures.length).toEqual(1);
|
||||
|
||||
const rule = <CssUnknownRuleAst>_getCaptureAst(captures, 0);
|
||||
expect(rule.ruleName).toEqual('@someUnknownRule');
|
||||
|
||||
_assertTokens(rule.tokens, ['param', '{', 'one', 'two', 'three', '}']);
|
||||
});
|
||||
|
||||
it('should collect an invalid list of tokens before a valid selector', () => {
|
||||
const cssCode = 'one two three four five; selector { }';
|
||||
ast = parse(cssCode, true);
|
||||
const visitor = new MyVisitor(ast, context);
|
||||
const captures = visitor.captures['visitCssUnknownTokenList'];
|
||||
|
||||
expect(captures.length).toEqual(1);
|
||||
|
||||
const rule = <CssUnknownTokenListAst>_getCaptureAst(captures, 0);
|
||||
_assertTokens(rule.tokens, ['one', 'two', 'three', 'four', 'five']);
|
||||
});
|
||||
|
||||
it('should collect an invalid list of tokens after a valid selector', () => {
|
||||
const cssCode = 'selector { } six seven eight';
|
||||
ast = parse(cssCode, true);
|
||||
const visitor = new MyVisitor(ast, context);
|
||||
const captures = visitor.captures['visitCssUnknownTokenList'];
|
||||
|
||||
expect(captures.length).toEqual(1);
|
||||
|
||||
const rule = <CssUnknownTokenListAst>_getCaptureAst(captures, 0);
|
||||
_assertTokens(rule.tokens, ['six', 'seven', 'eight']);
|
||||
});
|
||||
});
|
||||
})();
|
||||
Loading…
Reference in New Issue