Verification system for unused and undefined non-terminals

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Issue 类型
功能
描述清晰度
基本清楚
活跃度
停滞
技术栈
csharp
领域
documentation, tooling

调研方向

The payload names no source files, so start by locating the grammar model in the C# project, where rules, non-terminals and their definitions are represented. Add a check that flags non-terminals no rule uses as a warning, and one that flags used non-terminals with no definition as an exception. Cover each case with a test, and document both messages in Doc/Exceptions.md. Done means the tests pass and the new messages appear in that document.

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描述

enhancement

There should be a verification system for unused and undefined terminals, so that there won't be issue when further analysing a source code.

Here is how that should work:

  • For every non-terminal, check if at least one rule uses it.
  • If no rule uses it, then throw a warning
  • For every non-terminal that is used, check if there is at least one definition for it
  • If there are none, throw an exception

Don't forget to

  • Add several tests, at least one for each case
  • Add the exceptions and warnings raised to Doc/Exceptions.md.
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C#
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