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私はlib.rsに次の文脈で、「借用したコンテンツのライフタイムの参照残存期間」を解決するにはどうすればよいですか?
pub enum ConfigurationSource {
StringContent(String),
FileContent(PathBuf)
}
pub struct ConfigurationBuilder<'a> {
config: Value,
bundles: HashMap<&'a str, &'a Vec<ConfigurationSource>>
}
impl<'a> ConfigurationBuilder<'a>{
pub fn new(base_source: &ConfigurationSource) -> ConfigurationBuilder{
let base_config: Value = from_str("{}").unwrap();
let mut config_builder = ConfigurationBuilder{
config: base_config,
bundles: HashMap::new()
};
config_builder.merge_source(&base_source);
return config_builder;
}
//more code here
pub fn define_bundle(&mut self, bundle_key: &str, sources: &Vec<ConfigurationSource>){
self.bundles.insert(bundle_key, sources);
}
}
を、以下の構造体を持っている私はbundle_key
のかdefine_bundle
メソッドに渡されたsource
Sを所有するConfigurationBuilderインスタンスでバンドルをHashMapの必要はありません。
私は、次の2つは、私が間違って何をやっている
error[E0312]: lifetime of reference outlives lifetime of borrowed content...
--> src\lib.rs:67:41
|
67 | self.bundles.insert(bundle_key, sources);
| ^^^^^^^
|
note: ...the reference is valid for the lifetime 'a as defined on the impl at 27:1...
--> src\lib.rs:27:1
|
27 |/impl<'a> ConfigurationBuilder<'a>{
28 | |
29 | | pub fn new(base_source: &ConfigurationSource) -> ConfigurationBuilder{
30 | | let base_config: Value = from_str("{}").unwrap();
... |
89 | | }
90 | | }
| |_^
note: ...but the borrowed content is only valid for the anonymous lifetime #3 defined on the method
body at 66:5
--> src\lib.rs:66:5
|
66 |/ pub fn define_bundle(&mut self, bundle_key: &str, sources: &Vec<ConfigurationSource>){
67 | | self.bundles.insert(bundle_key, sources);
68 | | }
| |_____^
error[E0312]: lifetime of reference outlives lifetime of borrowed content...
--> src\lib.rs:67:29
|
67 | self.bundles.insert(bundle_key, sources);
| ^^^^^^^^^^
|
note: ...the reference is valid for the lifetime 'a as defined on the impl at 27:1...
--> src\lib.rs:27:1
|
27 |/impl<'a> ConfigurationBuilder<'a>{
28 | |
29 | | pub fn new(base_source: &ConfigurationSource) -> ConfigurationBuilder{
30 | | let base_config: Value = from_str("{}").unwrap();
... |
89 | | }
90 | | }
| |_^
note: ...but the borrowed content is only valid for the anonymous lifetime #2 defined on the method
body at 66:5
--> src\lib.rs:66:5
|
66 |/ pub fn define_bundle(&mut self, bundle_key: &str, sources: &Vec<ConfigurationSource>){
67 | | self.bundles.insert(bundle_key, sources);
68 | | }
| |_____^
ビルド時にコンパイルエラーを取得しますか?