refactor: move angular source to /packages rather than modules/@angular
This commit is contained in:
Jason Aden
248
packages/compiler/src/css_parser/css_ast.ts
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248
packages/compiler/src/css_parser/css_ast.ts
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/**
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* @license
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* Copyright Google Inc. 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 { return this.location.start; }
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get end(): ParseLocation { return this.location.end; }
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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 { return visitor.visitCssValue(this); }
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}
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export abstract class CssRuleAst extends CssAst {
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constructor(location: ParseSourceSpan) { super(location); }
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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) {
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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) { super(location); }
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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[]) { super(location); }
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visit(visitor: CssAstVisitor, context?: any): any { return visitor.visitCssBlock(this, context); }
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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[]) { super(location); }
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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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