Rust Refactor Helper

/rust-refactor-helper <action> <target> [--dry-run]

# Find all references before renamingLSP(  operation: "findReferences",  filePath: "src/lib.rs",  line: 25,  character: 8)
# Get symbol infoLSP(  operation: "hover",  filePath: "src/lib.rs",  line: 25,  character: 8)
# Check call hierarchy for move operationsLSP(  operation: "incomingCalls",  filePath: "src/lib.rs",  line: 25,  character: 8)

User: "Rename parse_config to load_config"    │    ▼[1] Find symbol definition    LSP(goToDefinition)    │    ▼[2] Find ALL references    LSP(findReferences)    │    ▼[3] Categorize by file    │    ▼[4] Check for conflicts    - Is 'load_config' already used?    - Are there macro-generated uses?    │    ▼[5] Show impact analysis (--dry-run)    │    ▼[6] Apply changes with Edit tool

## Rename: parse_config → load_config
### Impact Analysis
**Definition:** src/config.rs:25**References found:** 8
| File | Line | Context | Change ||------|------|---------|--------|| src/config.rs | 25 | `pub fn parse_config(` | Definition || src/config.rs | 45 | `parse_config(path)?` | Call || src/main.rs | 12 | `config::parse_config` | Import || src/main.rs | 30 | `let cfg = parse_config(` | Call || src/lib.rs | 8 | `pub use config::parse_config` | Re-export || tests/config_test.rs | 15 | `parse_config("test.toml")` | Test || tests/config_test.rs | 25 | `parse_config("")` | Test || docs/api.md | 42 | `parse_config` | Documentation |
### Potential Issues
⚠️ **Documentation reference:** docs/api.md:42 may need manual update⚠️ **Re-export:** src/lib.rs:8 - public API change
### Proceed?- [x] --dry-run (preview only)- [ ] Apply changes

User: "Extract lines 20-35 in main.rs to a function"    │    ▼[1] Read the selected code block    │    ▼[2] Analyze variables    - Which are inputs? (used but not defined in block)    - Which are outputs? (defined and used after block)    - Which are local? (defined and used only in block)    │    ▼[3] Determine function signature    │    ▼[4] Check for early returns, loops, etc.    │    ▼[5] Generate extracted function    │    ▼[6] Replace original code with call

## Extract Function: src/main.rs:20-35
### Selected Code​```rustlet file = File::open(&path)?;let mut contents = String::new();file.read_to_string(&mut contents)?;let config: Config = toml::from_str(&contents)?;validate_config(&config)?;​```
### Analysis
**Inputs:** path: &Path**Outputs:** config: Config**Side Effects:** File I/O, may return error
### Extracted Function
​```rustfn load_and_validate_config(path: &Path) -> Result<Config> {    let file = File::open(path)?;    let mut contents = String::new();    file.read_to_string(&mut contents)?;    let config: Config = toml::from_str(&contents)?;    validate_config(&config)?;    Ok(config)}​```
### Replacement
​```rustlet config = load_and_validate_config(&path)?;​```

User: "Move UserService to src/services/"    │    ▼[1] Find symbol and all its dependencies    │    ▼[2] Find all references (callers)    LSP(findReferences)    │    ▼[3] Analyze import changes needed    │    ▼[4] Check for circular dependencies    │    ▼[5] Generate move plan

## Move: UserService → src/services/user.rs
### Current Locationsrc/handlers/auth.rs:50-120
### Dependencies (will be moved together)- struct UserService (50-80)- impl UserService (82-120)- const DEFAULT_TIMEOUT (48)
### Import Changes Required
| File | Current | New ||------|---------|-----|| src/main.rs | `use handlers::auth::UserService` | `use services::user::UserService` || src/handlers/api.rs | `use super::auth::UserService` | `use crate::services::user::UserService` || tests/auth_test.rs | `use crate::handlers::auth::UserService` | `use crate::services::user::UserService` |
### New File Structure
​```src/├── services/│   ├── mod.rs (NEW - add `pub mod user;`)│   └── user.rs (NEW - UserService moved here)├── handlers/│   └── auth.rs (UserService removed)​```
### Circular Dependency Check✅ No circular dependencies detected

/rust-refactor-helper rename old_name new_name --dry-run