Refactor ParseError#1089
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caspervonb
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| #[derive(Debug, Clone)] | ||
| pub struct ParseHeaderValueError; |
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These are intended to be discrete simple errors for FromStr, they live outside of the "io-esque" methods on context and client.
This complicates what is a very simple and straight forward discrete error type imo.
Remember, users are the ones calling "".parse() directly for the most part.
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Instead of the `crate::Error`, the <private> method `stream::parse_headers` will return the specialized error with kind enumerating the possible causes of parsing errors. This change will help to specialize errors error returned by public methods. Along this change, I also refactored 2 errors, namely the `ParseHeaderNameError` and the `ParseHeaderValueError` to convert them to specialization of generic `crate::error::Error<_>`. These changes are collected in the same commit because all of them describe errors occurred during either building or parsing headers.
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This PR is a part of error specialization initiated by the #1047
See the initial discussion of the change in this #1081 (to be removed later, after processing the feedback by @Jarema and creating smaller PR-s from its commits).
This particular PR is created to follow-up the discussion
In this PR instead of the
crate::Error, the methodstream::parse_headerswill return the specialized error with kind enumerating the possible causes of parsing errors. This change will help to specialize errors error returned by public methods.Along this change, I also refactored 2 errors, namely the
ParseHeaderNameErrorand theParseHeaderValueErrorto convert them to specialization of genericcrate::error::Error<_>.These changes are collected in the same commit because all of them describe errors occurred during either building or parsing headers.