7a1b7cdf92
Implement Wasmtime's new API as designed by RFC 11. This is quite a large commit which has had lots of discussion externally, so for more information it's best to read the RFC thread and the PR thread.
40 lines
934 B
Rust
40 lines
934 B
Rust
use crate::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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