// Parse any additional attributes present after `lru_cache` and return a configuration object
// created from their contents. Additionally, return any attributes that were not handled here.
Parse any additional attributes present after `lru_cache` and return a configuration object
created from their contents. Additionally, return any attributes that were not handled here.
Parse any additional attributes present after ` lru_cache ` and return a configuration object created from their contents . Additionally return any attributes that were not handled here .
pub fn parse_from_attributes(attribs: &[syn::Attribute]) -> Result<(Config, Vec<syn::Attribute>)> {
        let mut parsed_attributes = Vec::new();
        let mut remaining_attributes = Vec::new();
        for attrib in attribs {
            let segs = &attrib.path.segments;
            if segs.len() > 0 {
                if segs[0].ident.to_string() == "lru_config" {
                    let tokens = attrib.tts.clone();
                    let parsed = syn::parse2::<ConfigAttrib>(tokens);
                    match parsed {
                        Ok(parsed_attrib) => parsed_attributes.push(parsed_attrib),
                        Err(e) => {
                            let diag = e.span().unstable()
                                .error(format!("{}", e));
                            return Err(DiagnosticError::new_with_syn_error(diag, e));
                        }
                    }
                }
                else {
                    remaining_attributes.push(attrib.clone());
                }
            }
        }
        let mut config: Config = Default::default();
        for parsed_attrib in parsed_attributes {
            match parsed_attrib {
                ConfigAttrib::CacheType(val) => config.cache_type = val.type_path,
                ConfigAttrib::IgnoreArgs(val) => config.ignore_args = val.ignore_args,
                ConfigAttrib::UseTls => config.use_tls = true,
            }
        }
        Ok((config, remaining_attributes))
    }
pub fn parse_from_attributes ( attribs : & [ syn :: Attribute ] ) -> Result < ( Config , Vec < syn :: Attribute > ) > { let mut parsed_attributes = Vec :: new ( ) ; let mut remaining_attributes = Vec :: new ( ) ; for attrib in attribs { let segs = & attrib . path . segments ; if segs . len ( ) > 0 { if segs [ 0 ] . ident . to_string ( ) == " " { let tokens = attrib . tts . clone ( ) ; let parsed = syn :: parse2 :: < ConfigAttrib > ( tokens ) ; match parsed { Ok ( parsed_attrib ) => parsed_attributes . push ( parsed_attrib ) , Err ( e ) => { let diag = e . span ( ) . unstable ( ) . error ( format ! ( " " e ) ) ; return Err ( DiagnosticError :: new_with_syn_error ( diag , e ) ) ; } } } else { remaining_attributes . push ( attrib . clone ( ) ) ; } } } let mut config : Config = Default :: default ( ) ; for parsed_attrib in parsed_attributes { match parsed_attrib { ConfigAttrib :: CacheType ( val ) => config . cache_type = val . type_path , ConfigAttrib :: IgnoreArgs ( val ) => config . ignore_args = val . ignore_args , ConfigAttrib :: UseTls => config . use_tls = true , } } Ok ( ( config , remaining_attributes ) ) }
Parse any additional attributes present after `lru_cache` and return a configuration object
created from their contents.
Parse any additional attributes present after ` lru_cache ` and return a configuration object created from their contents .
attribs
&[syn::Attribute]