33 lines
777 B
Rust
33 lines
777 B
Rust
use std::fmt::Display;
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use std::rc::Rc;
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use crate::foreign::ExternError;
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/// Some external event prevented the operation from succeeding
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#[derive(Clone)]
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pub struct RuntimeError {
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message: String,
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operation: &'static str,
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}
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impl RuntimeError {
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pub fn fail<T>(
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message: String,
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operation: &'static str,
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) -> Result<T, Rc<dyn ExternError>> {
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return Err(Self { message, operation }.into_extern());
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}
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pub fn ext(message: String, operation: &'static str) -> Rc<dyn ExternError> {
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return Self { message, operation }.into_extern();
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}
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}
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impl Display for RuntimeError {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "Error while {}: {}", self.operation, self.message)
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}
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}
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impl ExternError for RuntimeError {}
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