Struct ImportCollector 

pub struct ImportCollector { /* private fields */ }

Tracks imports and deduplicates them.

Maintains insertion order for deterministic output.

Example

use baobao_codegen::generation::ImportCollector;

let mut imports = ImportCollector::new();
imports.add("std::collections", "HashMap");
imports.add("std::collections", "HashSet");
imports.add("std::io", "Read");

// Render for Rust
for (module, symbols) in imports.iter() {
    let symbols: Vec<&str> = symbols.iter().map(|s| s.as_str()).collect();
    println!("use {}::{{{}}};", module, symbols.join(", "));
}

Implementations

impl ImportCollector

pub fn new() -> Self

Create a new empty import collector.

pub fn add(&mut self, module: &str, symbol: &str)

Add a symbol import from a module.

pub fn add_module(&mut self, module: &str)

Add a module import without specific symbols (e.g., import * as foo).

pub fn merge(&mut self, other: &ImportCollector)

Merge another collector into this one.

pub fn has_module(&self, module: &str) -> bool

Check if a module is already imported.

pub fn has_symbol(&self, module: &str, symbol: &str) -> bool

Check if a specific symbol is imported from a module.

pub fn iter(&self) -> impl Iterator<Item = (&str, &BTreeSet<String>)>

Iterate over all imports in insertion order.

pub fn is_empty(&self) -> bool

Check if the collector is empty.

pub fn len(&self) -> usize

Get the number of modules.

Trait Implementations

impl Clone for ImportCollector

fn clone(&self) -> ImportCollector

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ImportCollector

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ImportCollector

fn default() -> ImportCollector

Returns the “default value” for a type.