b07b0676a3
Previously extracting an exit code was only possibly on a `wasm_trap_t` which will never successfully have an exit code on it, so the exit code extractor is moved over to `wasmtime_error_t`. Additionally extracting a wasm trace from a `wasmtime_error_t` is added since traces happen on both traps and errors now.
62 lines
1.5 KiB
Rust
62 lines
1.5 KiB
Rust
use crate::{wasm_frame_vec_t, wasm_name_t};
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use anyhow::{anyhow, Error, Result};
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#[repr(C)]
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pub struct wasmtime_error_t {
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error: Error,
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}
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wasmtime_c_api_macros::declare_own!(wasmtime_error_t);
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impl From<Error> for wasmtime_error_t {
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fn from(error: Error) -> wasmtime_error_t {
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wasmtime_error_t { error }
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}
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}
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pub(crate) fn handle_result<T>(
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result: Result<T>,
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ok: impl FnOnce(T),
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) -> Option<Box<wasmtime_error_t>> {
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match result {
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Ok(value) => {
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ok(value);
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None
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}
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Err(error) => Some(Box::new(wasmtime_error_t { error })),
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}
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}
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pub(crate) fn bad_utf8() -> Option<Box<wasmtime_error_t>> {
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Some(Box::new(wasmtime_error_t {
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error: anyhow!("input was not valid utf-8"),
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}))
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}
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#[no_mangle]
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pub extern "C" fn wasmtime_error_message(error: &wasmtime_error_t, message: &mut wasm_name_t) {
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message.set_buffer(format!("{:?}", error.error).into_bytes());
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}
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#[no_mangle]
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pub extern "C" fn wasmtime_error_exit_status(raw: &wasmtime_error_t, status: &mut i32) -> bool {
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#[cfg(feature = "wasi")]
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if let Some(exit) = raw.error.downcast_ref::<wasmtime_wasi::I32Exit>() {
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*status = exit.0;
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return true;
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}
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// Squash unused warnings in wasi-disabled builds.
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drop((raw, status));
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false
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}
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#[no_mangle]
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pub extern "C" fn wasmtime_error_wasm_trace<'a>(
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raw: &'a wasmtime_error_t,
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out: &mut wasm_frame_vec_t<'a>,
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) {
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crate::trap::error_trace(&raw.error, out)
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}
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