Module ParseRust 

ParseRust

File: Indexing/Language/ParseRust.rs

Role in Air Architecture

Provides Rust-specific symbol extraction functionality for the File Indexer service, identifying Rust language constructs like structs, impl blocks, functions, modules, enums, and traits.

Primary Responsibility

Extract Rust code symbols from source files for VSCode Outline View and Go to Symbol features.

Secondary Responsibilities

• Extract struct definitions
• Extract impl blocks
• Extract function definitions
• Extract module declarations
• Extract enum definitions
• Extract trait definitions
• Extract type aliases

Dependencies

External Crates:

• None (uses std library)

Internal Modules:

• crate::Result - Error handling type
• super::super::SymbolInfo - Symbol structure definitions

Dependents

• Indexing::Process::ExtractSymbols - Language routing

VSCode Pattern Reference

Inspired by VSCode’s Rust symbol extraction in src/vs/workbench/services/search/common/

Security Considerations

• Line-by-line parsing without eval
• No code execution during extraction
• Safe string handling

Performance Considerations

• Efficient line-based parsing
• Minimal allocations per file
• Early termination for non-Rust files

Error Handling Strategy

Symbol extraction returns empty vectors on parse errors rather than failures, allowing indexing to continue for other files.

Thread Safety

Symbol extraction functions are pure and safe to call from parallel indexing tasks.

Functions

ExtractRustSymbols

Extract Rust symbols (struct, impl, fn, mod, enum, trait)

ExtractVisibilityModifier

Extract Rust visibility modifier if present

IsRustFunction

Check if a line contains a Rust function definition

IsRustImpl

Check if a line contains a Rust impl block

IsRustStruct

Check if a line contains a Rust struct definition