107 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			107 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import * as ts from 'typescript';
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import {ReflectorHost, ReflectorHostContext} from '../src/reflector_host';
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export type Entry = string | Directory;
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export interface Directory { [name: string]: Entry; }
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export class MockContext implements ReflectorHostContext {
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  constructor(public currentDirectory: string, private files: Entry) {}
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  exists(fileName: string): boolean { return this.getEntry(fileName) !== undefined; }
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  read(fileName: string): string|undefined {
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    let data = this.getEntry(fileName);
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    if (typeof data === 'string') {
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      return data;
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    }
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    return undefined;
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  }
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  write(fileName: string, data: string): void {
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    let parts = fileName.split('/');
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    let name = parts.pop();
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    let entry = this.getEntry(parts);
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    if (entry && typeof entry !== 'string') {
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      entry[name] = data;
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    }
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  }
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  getEntry(fileName: string|string[]): Entry|undefined {
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    let parts = typeof fileName === 'string' ? fileName.split('/') : fileName;
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    if (parts[0]) {
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      parts = this.currentDirectory.split('/').concat(parts);
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    }
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    parts.shift();
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    parts = normalize(parts);
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    let current = this.files;
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    while (parts.length) {
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      let part = parts.shift();
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      if (typeof current === 'string') {
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        return undefined;
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      }
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      let next = (<Directory>current)[part];
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      if (next === undefined) {
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        return undefined;
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      }
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      current = next;
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    }
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    return current;
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  }
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}
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function normalize(parts: string[]): string[] {
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  let result: string[] = [];
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  while (parts.length) {
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    let part = parts.shift();
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    switch (part) {
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      case '.':
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        break;
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      case '..':
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        result.pop();
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        break;
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      default:
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        result.push(part);
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    }
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  }
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  return result;
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}
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export class MockCompilerHost implements ts.CompilerHost {
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  constructor(private context: MockContext) {}
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  fileExists(fileName: string): boolean { return this.context.exists(fileName); }
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  readFile(fileName: string): string { return this.context.read(fileName); }
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  directoryExists(directoryName: string): boolean { return this.context.exists(directoryName); }
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  getSourceFile(
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      fileName: string, languageVersion: ts.ScriptTarget,
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      onError?: (message: string) => void): ts.SourceFile {
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    let sourceText = this.context.read(fileName);
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    if (sourceText) {
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      return ts.createSourceFile(fileName, sourceText, languageVersion);
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    } else {
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      return undefined;
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    }
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  }
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  getDefaultLibFileName(options: ts.CompilerOptions): string {
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    return ts.getDefaultLibFileName(options);
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  }
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  writeFile: ts.WriteFileCallback = (fileName, text) => { this.context.write(fileName, text); }
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  getCurrentDirectory(): string {
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    return this.context.currentDirectory;
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  }
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  getCanonicalFileName(fileName: string): string { return fileName; }
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  useCaseSensitiveFileNames(): boolean { return false; }
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  getNewLine(): string { return '\n'; }
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}
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