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Remove use of specialization
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@ -1,5 +1,4 @@
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#![feature(generators)]
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#![feature(specialization)]
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#![feature(proc_macro_hygiene)]
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#[macro_use]
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@ -5,16 +5,6 @@ pub trait ExtractType: Sized {
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fn extract(value: &Tagged<Value>) -> Result<Self, ShellError>;
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}
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impl<T> ExtractType for T {
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default fn extract(_value: &Tagged<Value>) -> Result<T, ShellError> {
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let name = std::any::type_name::<T>();
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Err(ShellError::unimplemented(format!(
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"<T> ExtractType for {}",
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name
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)))
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}
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}
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impl<T: ExtractType> ExtractType for Tagged<T> {
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fn extract(value: &Tagged<Value>) -> Result<Tagged<T>, ShellError> {
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let name = std::any::type_name::<T>();
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