Multi-Stack Code Generation

TeaQL Code Gen learned Rust. One model definition now produces both Java and Rust artifacts.

Separate Stack Templates

templates/
  java/
    entity.java.vm
    repository.java.vm
  rust/
    entity.rs.vm
    query.rs.vm

Each stack has isolated templates. No cross-language leakage.

Rust Lib Generators

// Generated from the same .teaql model
pub struct User {
    pub id: u64,
    pub name: String,
}

impl TeaQLEntity for User {
    const TABLE: &str = "user_t";
}

Typed Query Return Types

let names: Vec<String> = db.query(User::name())
    .filter(User::active().eq(true))
    .list()
    .await?;

The generator produces typed projections. User::name() returns String, User::class() returns User.

Explicit Aggregation APIs

let stats = db.query(Order::class())
    .group_by(Order::status())
    .agg(Order::total().sum())
    .agg(Order::id().count())
    .list()
    .await?;

Group-by and rollup DSLs are fully typed. The macro validates aggregation compatibility at compile time.

Relation Generation

let user = db.load(User::class(), id)
    .with(User::orders())
    .await?;

User::orders() is generated from the model's relation definition. No hand-written joins.