Method generate

crates/core/src/lib.rs:26–85

(&mut self, resolve: &mut Resolve, id: WorldId, files: &mut Files)

pub trait WorldGenerator {
    fn generate(&mut self, resolve: &mut Resolve, id: WorldId, files: &mut Files) -> Result<()> {
        if self.uses_nominal_type_ids() {
            resolve.generate_nominal_type_ids(id);
        }
        let world = &resolve.worlds[id];
        self.preprocess(resolve, id);

        fn unwrap_name(key: &WorldKey) -> &str {
            match key {
                WorldKey::Name(name) => name,
                WorldKey::Interface(_) => panic!("unexpected interface key"),
            }
        }

        let mut funcs = Vec::new();
        let mut types = Vec::new();
        for (name, import) in world.imports.iter() {
            match import {
                WorldItem::Function(f) => funcs.push((unwrap_name(name), f)),
                WorldItem::Interface { id, .. } => {
                    self.import_interface(resolve, name, *id, files)?
                }
                WorldItem::Type { id, .. } => types.push((unwrap_name(name), *id)),
            }
        }
        if !types.is_empty() {
            self.import_types(resolve, id, &types, files);
        }
        if !funcs.is_empty() {
            self.import_funcs(resolve, id, &funcs, files);
        }
        funcs.clear();

        self.finish_imports(resolve, id, files);

        // First generate bindings for any freestanding functions, if any. If
        // these refer to types defined in the world they need to refer to the
        // imported types generated above.
        //
        // Interfaces are then generated afterwards so if the same interface is
        // both imported and exported the right types are all used everywhere.
        let mut interfaces = Vec::new();
        for (name, export) in world.exports.iter() {
            match export {
                WorldItem::Function(f) => funcs.push((unwrap_name(name), f)),
                WorldItem::Interface { id, .. } => interfaces.push((name, id)),
                WorldItem::Type { .. } => unreachable!(),
            }
        }
        if !funcs.is_empty() {
            self.export_funcs(resolve, id, &funcs, files)?;
        }

        self.pre_export_interface(resolve, files)?;

        for (name, id) in interfaces {
            self.export_interface(resolve, name, *id, files)?;
        }