use super::super::instance::wasm_instance_t;
use libc::c_char;
use std::ffi::CString;
use wasmer_api::FrameInfo;
#[allow(non_camel_case_types)]
#[derive(Debug, Clone)]
pub struct wasm_frame_t {
info: FrameInfo,
}
impl<'a> From<&'a FrameInfo> for wasm_frame_t {
fn from(other: &'a FrameInfo) -> Self {
other.clone().into()
}
}
impl From<FrameInfo> for wasm_frame_t {
fn from(other: FrameInfo) -> Self {
Self { info: other }
}
}
#[no_mangle]
pub unsafe extern "C" fn wasm_frame_copy(frame: &wasm_frame_t) -> Box<wasm_frame_t> {
Box::new(frame.clone())
}
#[no_mangle]
pub unsafe extern "C" fn wasm_frame_delete(_frame: Option<Box<wasm_frame_t>>) {}
#[no_mangle]
pub unsafe extern "C" fn wasm_frame_instance(_frame: &wasm_frame_t) -> *const wasm_instance_t {
std::ptr::null()
}
#[no_mangle]
pub unsafe extern "C" fn wasm_frame_func_index(frame: &wasm_frame_t) -> u32 {
frame.info.func_index()
}
#[no_mangle]
pub unsafe extern "C" fn wasm_frame_func_offset(frame: &wasm_frame_t) -> usize {
frame.info.func_offset()
}
#[no_mangle]
pub unsafe extern "C" fn wasm_frame_module_offset(frame: &wasm_frame_t) -> usize {
frame.info.module_offset()
}
#[repr(C)]
#[allow(non_camel_case_types)]
#[derive(Debug, Clone)]
pub struct wasm_name_t {
pub name: *mut c_char,
}
#[no_mangle]
pub unsafe extern "C" fn wasm_frame_module_name(frame: &wasm_frame_t) -> wasm_name_t {
let module_name =
Some(frame.info.module_name()).and_then(|f| Some(CString::new(f).ok()?.into_raw()));
match module_name {
Some(s) => wasm_name_t { name: s },
None => wasm_name_t {
name: core::ptr::null_mut(),
},
}
}
#[no_mangle]
pub unsafe extern "C" fn wasm_frame_func_name(frame: &wasm_frame_t) -> wasm_name_t {
let func_name = frame
.info
.function_name()
.and_then(|f| Some(CString::new(f).ok()?.into_raw()));
match func_name {
Some(s) => wasm_name_t { name: s },
None => wasm_name_t {
name: core::ptr::null_mut(),
},
}
}
#[no_mangle]
pub unsafe extern "C" fn wasm_name_delete(name: Option<&mut wasm_name_t>) {
if let Some(s) = name {
if !s.name.is_null() {
let _ = CString::from_raw(s.name);
}
}
}
wasm_declare_boxed_vec!(frame);
#[cfg(test)]
#[test]
fn test_frame_name() {
use std::ffi::CStr;
use wasmer_types::SourceLoc;
let info = wasm_frame_t {
info: FrameInfo::new(
"module_name".to_string(),
5,
Some("function_name".to_string()),
SourceLoc::new(10),
SourceLoc::new(20),
),
};
unsafe {
let mut wasm_frame_func_name = wasm_frame_func_name(&info);
let s = CStr::from_ptr(wasm_frame_func_name.name);
assert_eq!(s.to_str().unwrap(), "function_name");
wasm_name_delete(Some(&mut wasm_frame_func_name));
let mut wasm_frame_module_name = wasm_frame_module_name(&info);
let s = CStr::from_ptr(wasm_frame_module_name.name);
assert_eq!(s.to_str().unwrap(), "module_name");
wasm_name_delete(Some(&mut wasm_frame_module_name));
}
println!("{:#?}", info);
}