Struct CowMut 

pub struct CowMut;

Copy-on-Write mutation patterns for safe AST manipulation.

These patterns ensure the original AST is never modified, making it safe to work with multiple “versions” of the code.

Implementations

impl CowMut

pub fn rename(ast: &RustAST, old: &str, new: &str) -> MutResult<RenameResult>

Apply a rename with Copy-on-Write semantics.

Returns a new AST, leaving the original unchanged.

pub fn multi_rename( ast: &RustAST, renames: &[(&str, &str)], ) -> Vec<MutResult<RenameResult>>

Apply multiple independent renames, each producing a new AST.

Returns one result per rename operation.

pub fn chain_renames( ast: &RustAST, renames: &[(&str, &str)], ) -> MutResult<Vec<RenameResult>>

Chain multiple renames on the same AST.

Each rename is applied sequentially to the result of the previous.