TypeScript core.isObservable函数代码示例

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本文整理汇总了TypeScript中@angular-devkit/core.isObservable函数的典型用法代码示例。如果您正苦于以下问题：TypeScript isObservable函数的具体用法？TypeScript isObservable怎么用？TypeScript isObservable使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了isObservable函数的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的TypeScript代码示例。

示例1: rule

  return input.pipe(mergeMap(inputTree => {
    const result = rule(inputTree, context) as object;

    if (result === undefined) {
      return observableOf(inputTree);
    } else if (TreeSymbol in result) {
      return observableOf(result as Tree);
    } else if (typeof result == 'function') {
      // This is considered a Rule, chain the rule and return its output.
      return callRule(result, input, context);
    } else if (isObservable(result)) {
      const obs = result as Observable<Tree>;

      // Only return the last Tree, and make sure it's a Tree.
      return obs.pipe(
        last(),
        tap(inner => {
          if (!(TreeSymbol in inner)) {
            throw new InvalidRuleResultException(inner);
          }
        }),
      );
    } else if (result === undefined) {
      return observableOf(inputTree);
    } else {
      return throwError(new InvalidRuleResultException(result));
    }
  }));

开发者ID:fmalcher，项目名称:angular-cli，代码行数:28，代码来源:call.ts

示例2: rule

  return input.pipe(mergeMap(inputTree => {
    const result = rule(inputTree, context) as object;

    if (result === undefined) {
      return observableOf(inputTree);
    } else if (TreeSymbol in result) {
      return observableOf(result as Tree);
    } else if (isObservable(result)) {
      const obs = result as Observable<Tree>;

      // Only return the last Tree, and make sure it's a Tree.
      return obs.pipe(
        last(),
        tap(inner => {
          if (!(TreeSymbol in inner)) {
            throw new InvalidRuleResultException(inner);
          }
        }),
      );
    } else if (result === undefined) {
      return observableOf(inputTree);
    } else {
      return throwError(new InvalidRuleResultException(result));
    }
  }));

开发者ID:iwe7，项目名称:devkit，代码行数:25，代码来源:call.ts

示例3: rule

  return input.pipe(mergeMap(inputTree => {
    const result = rule(inputTree, context);

    if (!result) {
      return observableOf(inputTree);
    } else if (typeof result == 'function') {
      // This is considered a Rule, chain the rule and return its output.
      return callRule(result, observableOf(inputTree), context);
    } else if (isObservable(result)) {
      // Only return the last Tree, and make sure it's a Tree.
      return result.pipe(
        defaultIfEmpty(),
        last(),
        tap(inner => {
          if (!inner || !(TreeSymbol in inner)) {
            throw new InvalidRuleResultException(inner);
          }
        }),
      );
    } else if (TreeSymbol in result) {
      return observableOf(result);
    } else {
      return throwError(new InvalidRuleResultException(result));
    }
  }));

开发者ID:DevIntent，项目名称:angular-cli，代码行数:25，代码来源:call.ts

示例4: callSource

export function callSource(source: Source, context: SchematicContext): Observable<Tree> {
  const result = source(context);

  if (isObservable(result)) {
    // Only return the last Tree, and make sure it's a Tree.
    return result.pipe(
      defaultIfEmpty(),
      last(),
      tap(inner => {
        if (!inner || !(TreeSymbol in inner)) {
          throw new InvalidSourceResultException(inner);
        }
      }),
    );
  } else if (result && TreeSymbol in result) {
    return observableOf(result);
  } else {
    return throwError(new InvalidSourceResultException(result));
  }
}

开发者ID:angular，项目名称:angular-cli，代码行数:20，代码来源:call.ts

示例5: callSource

export function callSource(source: Source, context: SchematicContext): Observable<Tree> {
  const result = source(context) as object;

  if (result === undefined) {
    return throwError(new InvalidSourceResultException(result));
  } else if (TreeSymbol in result) {
    return observableOf(result as Tree);
  } else if (isObservable(result)) {
    // Only return the last Tree, and make sure it's a Tree.
    return (result as Observable<Tree>).pipe(
      last(),
      tap(inner => {
        if (!(TreeSymbol in inner)) {
          throw new InvalidSourceResultException(inner);
        }
      }),
    );
  } else {
    return throwError(new InvalidSourceResultException(result));
  }
}

开发者ID:fmalcher，项目名称:angular-cli，代码行数:21，代码来源:call.ts

注：本文中的@angular-devkit/core.isObservable函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。