forked from angular/angular
/
source_module.ts
44 lines (37 loc) · 1.33 KB
/
source_module.ts
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import {StringWrapper, isBlank} from 'angular2/src/core/facade/lang';
var MODULE_REGEXP = /#MODULE\[([^\]]*)\]/g;
export function moduleRef(moduleUrl): string {
return `#MODULE[${moduleUrl}]`;
}
export class SourceModule {
constructor(public moduleUrl: string, public sourceWithModuleRefs: string) {}
getSourceWithImports(): SourceWithImports {
var moduleAliases = {};
var imports: string[][] = [];
var newSource =
StringWrapper.replaceAllMapped(this.sourceWithModuleRefs, MODULE_REGEXP, (match) => {
var moduleUrl = match[1];
var alias = moduleAliases[moduleUrl];
if (isBlank(alias)) {
if (moduleUrl == this.moduleUrl) {
alias = '';
} else {
alias = `import${imports.length}`;
imports.push([moduleUrl, alias]);
}
moduleAliases[moduleUrl] = alias;
}
return alias.length > 0 ? `${alias}.` : '';
});
return new SourceWithImports(newSource, imports);
}
}
export class SourceExpression {
constructor(public declarations: string[], public expression: string) {}
}
export class SourceExpressions {
constructor(public declarations: string[], public expressions: string[]) {}
}
export class SourceWithImports {
constructor(public source: string, public imports: string[][]) {}
}