83 lines
3.2 KiB
TypeScript
83 lines
3.2 KiB
TypeScript
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import {AST} from 'angular2/src/core/change_detection/change_detection';
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import {isPresent} from 'angular2/src/core/facade/lang';
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import {DirectiveMetadata} from './api';
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export interface TemplateAst {
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sourceInfo: string;
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visit(visitor: TemplateAstVisitor): any;
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}
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export class TextAst implements TemplateAst {
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constructor(public value: string, public sourceInfo: string) {}
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visit(visitor: TemplateAstVisitor): any { return visitor.visitText(this); }
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}
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export class BoundTextAst implements TemplateAst {
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constructor(public value: AST, public sourceInfo: string) {}
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visit(visitor: TemplateAstVisitor): any { return visitor.visitBoundText(this); }
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}
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export class AttrAst implements TemplateAst {
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constructor(public name: string, public value: string, public sourceInfo: string) {}
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visit(visitor: TemplateAstVisitor): any { return visitor.visitAttr(this); }
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}
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export class BoundPropertyAst implements TemplateAst {
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constructor(public name: string, public value: AST, public sourceInfo: string) {}
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visit(visitor: TemplateAstVisitor): any { return visitor.visitProperty(this); }
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}
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export class BoundEventAst implements TemplateAst {
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constructor(public name: string, public handler: AST, public sourceInfo: string) {}
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visit(visitor: TemplateAstVisitor): any { return visitor.visitEvent(this); }
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}
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export class VariableAst implements TemplateAst {
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constructor(public name: string, public value: string, public sourceInfo: string) {}
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visit(visitor: TemplateAstVisitor): any { return visitor.visitVariable(this); }
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}
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export class ElementAst implements TemplateAst {
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constructor(public attrs: AttrAst[], public properties: BoundPropertyAst[],
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public events: BoundEventAst[], public vars: VariableAst[],
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public directives: DirectiveMetadata[], public children: TemplateAst[],
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public sourceInfo: string) {}
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visit(visitor: TemplateAstVisitor): any { return visitor.visitElement(this); }
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}
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export class EmbeddedTemplateAst implements TemplateAst {
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constructor(public attrs: AttrAst[], public properties: BoundPropertyAst[],
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public vars: VariableAst[], public directives: DirectiveMetadata[],
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public children: TemplateAst[], public sourceInfo: string) {}
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visit(visitor: TemplateAstVisitor): any { return visitor.visitEmbeddedTemplate(this); }
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}
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export class NgContentAst implements TemplateAst {
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constructor(public select: string, public sourceInfo: string) {}
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visit(visitor: TemplateAstVisitor): any { return visitor.visitNgContent(this); }
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}
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export interface TemplateAstVisitor {
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visitNgContent(ast: NgContentAst): any;
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visitEmbeddedTemplate(ast: EmbeddedTemplateAst): any;
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visitElement(ast: ElementAst): any;
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visitVariable(ast: VariableAst): any;
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visitEvent(ast: BoundEventAst): any;
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visitProperty(ast: BoundPropertyAst): any;
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visitAttr(ast: AttrAst): any;
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visitBoundText(ast: BoundTextAst): any;
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visitText(ast: TextAst): any;
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}
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export function templateVisitAll(visitor: TemplateAstVisitor, asts: TemplateAst[]): any[] {
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var result = [];
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asts.forEach(ast => {
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var astResult = ast.visit(visitor);
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if (isPresent(astResult)) {
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result.push(astResult);
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}
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});
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return result;
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}
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