Method exec_build_module

compiler/src/modules/vm/dispatch.rs:985–1006

(&mut self, op: u16)

    #[inline(never)]
    fn exec_build_module(&mut self, op: u16) -> Result<(), VmErr> {
        let total = (op as usize) * 2 + 1;
        let mut frame = self.pop_n(total)?;
        let module_name_val = frame.pop().ok_or(cold_runtime("BuildModule: empty stack"))?;
        let module_name = match self.heap.get(module_name_val) {
            HeapObj::Str(s) => s.clone(),
            _ => return Err(cold_runtime("BuildModule: module name not a string")),
        };
        let mut attrs: Vec<(String, Val)> = Vec::with_capacity(op as usize);
        let mut it = frame.into_iter();
        while let Some(name_v) = it.next() {
            let val = it.next().ok_or(cold_runtime("BuildModule: malformed attr stack"))?;
            let n = match self.heap.get(name_v) {
                HeapObj::Str(s) => s.clone(),
                _ => return Err(cold_runtime("BuildModule: attr name not a string")),
            };
            attrs.push((n, val));
        }
        let m = self.heap.alloc(HeapObj::Module(module_name, attrs))?;
        self.push(m);
        Ok(())
    }
}