zwasm_sdk/
error.rs

1use thiserror::Error;
2use zwasm_sys as sys;
3
4#[derive(Error, Debug)]
5#[error("ZwasmError: {0}")]
6pub struct ZwasmError(pub String);
7
8impl ZwasmError {
9    /// Returns `true` when execution was interrupted by host cancellation or timeout.
10    pub fn is_interrupted(&self) -> bool {
11        self.is_canceled() || self.is_timeout_exceeded()
12    }
13
14    /// Returns `true` when execution was canceled by the host.
15    pub fn is_canceled(&self) -> bool {
16        contains_case_insensitive(&self.0, "execution canceled")
17            || contains_case_insensitive(&self.0, "canceled")
18    }
19
20    /// Returns `true` when execution stopped because the configured timeout elapsed.
21    pub fn is_timeout_exceeded(&self) -> bool {
22        contains_case_insensitive(&self.0, "execution timed out")
23            || contains_case_insensitive(&self.0, "timeout exceeded")
24            || contains_case_insensitive(&self.0, "timed out")
25    }
26}
27
28fn contains_case_insensitive(haystack: &str, needle: &str) -> bool {
29    haystack
30        .to_ascii_lowercase()
31        .contains(&needle.to_ascii_lowercase())
32}
33
34pub fn last_error() -> Option<ZwasmError> {
35    let err_ptr = unsafe { sys::zwasm_last_error_message() };
36    if err_ptr.is_null() {
37        None
38    } else {
39        let c_str = unsafe { std::ffi::CStr::from_ptr(err_ptr) };
40        let str_slice = c_str.to_str().unwrap_or("Invalid UTF-8");
41        Some(ZwasmError(str_slice.to_string()))
42    }
43}
zwasm_sdk/error.rs

zwasm_sdk/
error.rs
