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TextEngine

Struct TextEngine 

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pub struct TextEngine { /* private fields */ }
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BM25 全文搜索引擎

内部委托 SearchStore(SQLite FTS5)完成索引和搜索。 公开 API 保持不变,供 pipeline 和 CLI 调用。

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impl TextEngine

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pub fn open(path: impl AsRef<Path>) -> Result<(Self, bool)>

打开或创建持久化搜索引擎。

path 指向 SQLite 数据库文件(.db),不存在时自动创建。 返回 (engine, need_reindex):need_reindex=true 表示旧 schema 已 迁移重建(索引为空),调用方必须全量重索引(增量路径只补 changed_files 会丢失旧实体)。

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pub fn index(&mut self, node: &CodeNode, source_code: &str) -> Result<()>

索引一个 CodeNode。

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pub fn index_batch(&mut self, items: &[(CodeNode, String)]) -> Result<()>

批量索引多个实体。

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pub fn search(&self, query: &str, limit: usize) -> Result<Vec<(CodeNode, f64)>>

BM25 搜索,返回 (CodeNode, score) 按相关性降序。

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pub fn remove_by_file(&mut self, file_path: &str) -> Result<usize>

删除指定文件路径关联的所有索引条目。

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pub fn clear(&mut self) -> Result<()>

清空索引。

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pub fn doc_count(&self) -> usize

当前索引中的文档数。

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