ydb/yql/essentials/parser/common, branch main

YQL-20095: Apply lost Clang Tidy fixes

2026-03-05T07:10:57Z

I do not known why, but these Clang Tidy fixes was lost. Maybe this is because of conditional preprocessing. Maybe Clang Tidy is ran only on changed sources. commit_hash:718e5487699b21b643ed90729ce8347c84cbd6ee

YQL-20095: Enable google-explicit-constructor

2026-01-23T13:17:10Z

commit_hash:4d77ad10fd4db303459ec4e45e139967c7fc8196

YQL-20095: Enable modernize-use-override

2026-01-13T14:55:02Z

The check `modernize-use-override` is useful as it: 1. Removes redundant `override` when it is used with a `final`. 2. Removes redundant `virtual` or replace it with a `override`. So it is more clean for a reader, that overriding happens. It is enabled not out of order, as it is just an alias to `cppcoreguidelines-explicit-virtual-functions`. I also decided to switch a strategy of enabling checks. Now I will enable only a single rule with a single PR and prefer rules with a non-breaking autofix. In the new year with new linter checks! 🎄 commit_hash:e6e233baa90b31e5f65e11837546690c47f71ab5

YQL-20086 invert flag

2025-10-10T14:08:12Z

commit_hash:a6b640bc576263b62884a0b4187ba79c893e13d9

YQL-20086 parser

2025-10-08T12:09:49Z

commit_hash:dd605e5cde39ff07fdadf62f0c2364a8b12c8405

YQL-20116: Introduce ANTLR4 ambiguity detection

2025-10-06T06:18:09Z

- Ignored 2 known ambiguities. - Tested tools. commit_hash:9e29bb2f876dabc68293b3e5c26a470d373506ae

YQL-20086 parser (w/o pg)

2025-06-20T14:10:34Z

commit_hash:f4bddb30981abde1a951149fff272d86a22dd726

YQL-19747 Detect a token at the caret position

2025-04-23T12:27:38Z

When I tried to implement a folder and object names completion at `ID_QUOTED` I faced with a problem, that I actually can't detect, that cursor is at `ID_QUOTED` token because `TCompletionInput::Text` it was cut until the `TCompletionInput::CursorPosition`, therefore at input ``` SELECT * FROM `#` ``` prefix was ``` SELECT * FROM `# ``` and then lexer failed. While we actually want tokenize the whole current statement, `C3` still needs to receive a prefix as input. I tried to tokenize the whole statement and then on input `SELECT Optional<#>` got nothing because `<>` is solid token in the `SQL`. The only way to fix it I found is to cut a query to prefix until the cursor position. BTW, current implementation is not so efficient as we tokenize the input multiple times. Especially `SplitQueryToStatemnts` seems heavy. In future we anyway will parse the whole input so will need to design APIs to receive ready token streams to do statements splitting, for example, just not to do the work twice. ![image](https://github.com/user-attachments/assets/114804d3-f311-4a46-be84-8ed4650bc9dd) So I introduce you the following changes - [x] Select the whole current statement, not just prefix. - [x] Find the token at caret and output no candidates when caret is at `STRING_VALUE`, `DIGIGTS` and so on. - [x] Change `C3` wrapper interface to take `TCompletionInput` to hide an implementation detail that it runs on cut prefix. - [x] `#` annotated queries in unit tests. - [x] Detect `CaretTokenPosition` -- if is it enclosed with a token or between two. - [x] Ensure that `maxErrors` in `ILexer::Tokenize` is positive. Just a tiny bugfix. --- - Related to https://github.com/ytsaurus/ytsaurus/pull/1209 - Related to https://github.com/ydb-platform/ydb/issues/9056 - Related to https://github.com/vityaman/ydb/issues/14 --- Pull Request resolved: https://github.com/ytsaurus/ytsaurus/pull/1225 commit_hash:a434b9888ec8a7356247d63d9f1420e256ae4fca

Intermediate changes

2025-04-07T18:09:44Z

commit_hash:6768768ea3a3962231d3fabdffb2ce0db44e9347

YQL-19616 Implement ILexer via antlr_ast

2025-03-19T10:18:48Z

- [x] Added `antlr_ast/antlr4` module and moved `TLexerTokensCollector4` there from `proto_ast/antlr4`. - [x] Moved stuff around back and forth. Ready for a review. --- Co-authored-by: vityaman [vityaman.dev@yandex.ru] Pull Request resolved: https://github.com/ytsaurus/ytsaurus/pull/1128 commit_hash:e08785c3408ef813505bdc7511560e9536f4ab79