[−][src]Crate lovm2
lovm2 is a lightweight virtual machine with a focus on simplicity and extendability.
Features
- dynamic typing
- generate bytecode using highlevel intermediate representation
- call into shared objects: lovm2_extend
- python bindings: pylovm2
- define own callbacks for interrupts
Example
use lovm2::prelude::*; use lovm2::vm::Vm; fn main() { let mut main_hir = HIR::new(); // set the local variable n to 10 main_hir.push(Assign::local(var!(n), 10)); // `print` is a builtin function. the `var!` macro // ensures that the given identifier is not confused // with a string. main_hir.push(Call::new("print").arg(var!(n)).arg("Hello World")); // ... this is equivalent to the developer-friendly version: main_hir.push(call!(print, n, "Hello World")); let mut module = ModuleBuilder::new(); // a module needs a code object called `main` // if you want to make it runnable module.add("main").hir(main_hir); // consumes the `ModuleBuilder` and transforms // it into a `Module` let module = module.build().unwrap(); println!("{:#?}", module); // load the module and run it let mut vm = Vm::new(); vm.load_and_import_all(module).expect("load error"); vm.run().expect("run error"); }
Re-exports
pub use self::hir::prelude; |
Modules
bytecode | definition of the bytecode |
code | runnable bytecode objects |
context | vm state |
frame | |
hir | highlevel intermediate representation |
module | collections of runnable objects |
util | |
value | |
var | |
vm |
Macros
access | |
call | |
co_dict | |
co_list | |
define_code | |
var |
Attribute Macros
lovm2_builtin | used for generating wrappers of statically linked functions to be called from lovm2 |