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https://github.com/fluencelabs/wasm-bindgen
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Workaround an upstream nom
bug
This commit works around Geal/nom#843 where the API of the `nom` crate changes based on feature selection, meaning we need to be compatible even if another crate in the crate graph enables a feature. Ideally this'd be fixed in upstream `nom`, and it looks like it will in the next major version! For now a local catch-all directive should help out.
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@ -68,10 +68,17 @@ fn parse(webidl_source: &str, allowed_types: Option<&[&str]>) -> Result<Program>
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.context(ErrorKind::ParsingWebIDLSource)
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.into(),
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weedle::Err::Error(cx) | weedle::Err::Failure(cx) => {
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// Note that #[allow] here is a workaround for Geal/nom#843
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// because the `Context` type here comes from `nom` and if
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// something else in our crate graph enables the
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// `verbose-errors` feature then we need to still compiled
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// against the changed enum definition.
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#[allow(unreachable_patterns)]
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let remaining = match cx {
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weedle::Context::Code(remaining, _) => remaining,
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weedle::Context::Code(remaining, _) => remaining.len(),
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_ => 0,
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};
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let pos = webidl_source.len() - remaining.len();
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let pos = webidl_source.len() - remaining;
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format_err!("failed to parse WebIDL")
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.context(ErrorKind::ParsingWebIDLSourcePos(pos))
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.into()
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