e40c039e65
Better to be loud that we don't support attaching arbitrary host info to `externref`s than to limp along and pretend we do support it. Supporting it properly won't reuse any of this code anyways.
47 lines
1.1 KiB
Rust
47 lines
1.1 KiB
Rust
use crate::{wasm_name_t, wasm_trap_t};
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use anyhow::{anyhow, Error, Result};
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use wasmtime::Trap;
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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 wasmtime_error_t {
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pub(crate) fn to_trap(self) -> Box<wasm_trap_t> {
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Box::new(wasm_trap_t::new(Trap::from(self.error)))
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}
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}
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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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