graphql/graphql-js

merge ast trees

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#1,428 创建于 2018年7月21日

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 (9 评论) (4 反应) (0 负责人)TypeScript (19,825 star) (2,223 fork)batch import
help wantedproposal

描述

Feature request

Another feature that is extremely useful and utils are lacking it: merging ast trees.

Primary use case: merging two queries (selections) to dynamically construct queries. There are plenty of cases where it is needed, mainly in libraries and in cases of graphql to graphql communication.

PS It would be great if somebody can say how to do this properly now (simple deep merge doesn't wotk properly)

贡献者指南

技术栈
typescript
领域
apibackend
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
4
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
3-5 days
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
GraphQL conceptsAST traversal knowledge
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
35
研究方向
Review the existing AST utilities in graphql js, particularly in src/utilities/ directory, to understand current functions like concatAST. Examine the issue comments for prior discussions and attempts. Develop a deep merge algorithm for AST nodes, handling selection sets, fragments, and directives while preserving unique fields and avoiding duplicates.