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cosmwasm-std: avoid dependency on std::error::Error #1785

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cosmwasm-std: avoid dependency on std::error::Error #1785

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6 changes: 5 additions & 1 deletion packages/std/src/errors/system_error.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,11 @@ pub enum SystemError {
},
}

impl std::error::Error for SystemError {}
// We want to support no_std thus we don’t want to reference Error through
// std::error module. At the same time we don’t want to use core::error since
// that’s unstable. Fortunately, we can take advantage of serde which
// re-exports the trait as serde::de::StdError.
impl serde::de::StdError for SystemError {}

impl core::fmt::Display for SystemError {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
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