TypeScript apollo-utilities.isField函数代码示例

OStack程序员社区-中国程序员成长平台 › 门户 › 编程› TypeScript›TypeScript教程

原作者: [db:作者] 来自: [db:来源] 收藏邀请

本文整理汇总了TypeScript中apollo-utilities.isField函数的典型用法代码示例。如果您正苦于以下问题：TypeScript isField函数的具体用法？TypeScript isField怎么用？TypeScript isField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isField函数的4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: InvariantError

    selectionSet.selections.forEach(selection => {
      if (!shouldInclude(selection, variables)) {
        // Skip this entirely
        return;
      }

      if (isField(selection)) {
        const fieldResult = handleMissing(
          this.executeField(object, typename, selection, execContext),
        );

        if (typeof fieldResult !== 'undefined') {
          objectsToMerge.push({
            [resultKeyNameFromField(selection)]: fieldResult,
          });
        }

      } else {
        let fragment: InlineFragmentNode | FragmentDefinitionNode;

        if (isInlineFragment(selection)) {
          fragment = selection;
        } else {
          // This is a named fragment
          fragment = fragmentMap[selection.name.value];

          if (!fragment) {
            throw new InvariantError(`No fragment named ${selection.name.value}`);
          }
        }

        const typeCondition = fragment.typeCondition.name.value;

        const match = execContext.fragmentMatcher(rootValue, typeCondition, contextValue);
        if (match) {
          let fragmentExecResult = this.executeSelectionSet({
            selectionSet: fragment.selectionSet,
            rootValue,
            execContext,
          });

          if (match === 'heuristic' && fragmentExecResult.missing) {
            fragmentExecResult = {
              ...fragmentExecResult,
              missing: fragmentExecResult.missing.map(info => {
                return { ...info, tolerable: true };
              }),
            };
          }

          objectsToMerge.push(handleMissing(fragmentExecResult));
        }
      }
    });

开发者ID:apollostack，项目名称:apollo-client，代码行数:54，代码来源:readFromStore.ts

示例2: Error

  const execute = async selection => {
    if (!shouldInclude(selection, variables)) {
      // Skip this entirely
      return;
    }

    if (isField(selection)) {
      const fieldResult = await executeField(selection, rootValue, execContext);

      const resultFieldKey = resultKeyNameFromField(selection);

      if (fieldResult !== undefined) {
        if (result[resultFieldKey] === undefined) {
          result[resultFieldKey] = fieldResult;
        } else {
          merge(result[resultFieldKey], fieldResult);
        }
      }

      return;
    }

    let fragment: InlineFragmentNode | FragmentDefinitionNode;

    if (isInlineFragment(selection)) {
      fragment = selection;
    } else {
      // This is a named fragment
      fragment = fragmentMap[selection.name.value];

      if (!fragment) {
        throw new Error(`No fragment named ${selection.name.value}`);
      }
    }

    const typeCondition = fragment.typeCondition.name.value;

    if (execContext.fragmentMatcher(rootValue, typeCondition, contextValue)) {
      const fragmentResult = await executeSelectionSet(
        fragment.selectionSet,
        rootValue,
        execContext,
      );

      merge(result, fragmentResult);
    }
  };

开发者ID:NewSpring，项目名称:apollo-client，代码行数:47，代码来源:graphql-async.ts

示例3: Error

  selectionSet.selections.forEach(selection => {
    if (variables && !shouldInclude(selection, variables)) {
      // Skip selection sets which we're able to determine should not be run
      return;
    }

    if (isField(selection)) {
      const fieldResult = executeField(selection, rootValue, execContext);

      const resultFieldKey = resultKeyNameFromField(selection);

      if (fieldResult !== undefined) {
        if (result[resultFieldKey] === undefined) {
          result[resultFieldKey] = fieldResult;
        } else {
          merge(result[resultFieldKey], fieldResult);
        }
      }
    } else {
      let fragment: InlineFragmentNode | FragmentDefinitionNode;

      if (isInlineFragment(selection)) {
        fragment = selection;
      } else {
        // This is a named fragment
        fragment = fragmentMap[selection.name.value];

        if (!fragment) {
          throw new Error(`No fragment named ${selection.name.value}`);
        }
      }

      const typeCondition = fragment.typeCondition.name.value;

      if (execContext.fragmentMatcher(rootValue, typeCondition, contextValue)) {
        const fragmentResult = executeSelectionSet(
          fragment.selectionSet,
          rootValue,
          execContext,
        );

        merge(result, fragmentResult);
      }
    }
  });

开发者ID:apollostack，项目名称:apollo-client，代码行数:45，代码来源:graphql.ts

示例4: async

    const execute = async (selection: SelectionNode): Promise<void> => {
      if (!shouldInclude(selection, variables)) {
        // Skip this entirely.
        return;
      }

      if (isField(selection)) {
        return this.resolveField(selection, rootValue, execContext).then(
          fieldResult => {
            if (typeof fieldResult !== 'undefined') {
              resultsToMerge.push({
                [resultKeyNameFromField(selection)]: fieldResult,
              } as TData);
            }
          },
        );
      }

      let fragment: InlineFragmentNode | FragmentDefinitionNode;

      if (isInlineFragment(selection)) {
        fragment = selection;
      } else {
        // This is a named fragment.
        fragment = fragmentMap[selection.name.value];
        invariant(fragment, `No fragment named ${selection.name.value}`);
      }

      if (fragment && fragment.typeCondition) {
        const typeCondition = fragment.typeCondition.name.value;
        if (execContext.fragmentMatcher(rootValue, typeCondition, context)) {
          return this.resolveSelectionSet(
            fragment.selectionSet,
            rootValue,
            execContext,
          ).then(fragmentResult => {
            resultsToMerge.push(fragmentResult);
          });
        }
      }
    };

开发者ID:apollostack，项目名称:apollo-client，代码行数:41，代码来源:LocalState.ts

注：本文中的apollo-utilities.isField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。