wasmtime_internal_debugger/
host.rs

1//! Host implementation for the debugger world.
2
3use wasmtime::{
4    Result,
5    component::{Resource, ResourceTable},
6};
7
8mod api;
9mod bindings;
10mod opaque;
11
12pub use api::Debuggee;
13pub use bindings::DebugMain as DebuggerComponent;
14pub use bindings::bytecodealliance::wasmtime::debuggee as wit;
15use opaque::OpaqueDebugger;
16
17/// Register a debuggee in a resource table.
18pub fn add_debuggee<T: Send + 'static>(
19    table: &mut ResourceTable,
20    debuggee: crate::Debuggee<T>,
21) -> Result<Resource<Debuggee>> {
22    let engine = debuggee.engine().clone();
23    let interrupt_pending = debuggee.interrupt_pending().clone();
24    let inner: Option<Box<dyn OpaqueDebugger + Send + 'static>> = Some(Box::new(debuggee));
25    Ok(table.push(Debuggee {
26        inner,
27        engine,
28        interrupt_pending,
29    })?)
30}
31
32impl bindings::DebugMainImports for ResourceTable {
33    async fn print_debugger_info(&mut self, message: String) -> wasmtime::Result<()> {
34        eprintln!("Debugger: {message}");
35        Ok(())
36    }
37}
38
39/// Add the debugger world's host functions to a [`wasmtime::component::Linker`].
40pub fn add_to_linker<T: Send + 'static>(
41    linker: &mut wasmtime::component::Linker<T>,
42    f: fn(&mut T) -> &mut ResourceTable,
43) -> wasmtime::Result<()> {
44    wit::add_to_linker::<_, wasmtime::component::HasSelf<ResourceTable>>(linker, f)?;
45    bindings::DebugMain::add_to_linker_imports::<_, wasmtime::component::HasSelf<ResourceTable>>(
46        linker, f,
47    )?;
48    Ok(())
49}
wasmtime_internal_debugger/host.rs

wasmtime_internal_debugger/
host.rs
