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Provide a default Input::fetch() that uses lazyFetch()

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Eelco Dolstra 2022-05-18 23:24:05 +02:00
parent df713a5d25
commit c80b942c6e
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3 changed files with 21 additions and 7 deletions
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6
src/libfetchers/fetchers.hh
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@ -135,7 +135,11 @@ struct InputScheme
virtual void markChangedFile(const Input & input, std::string_view file, std::optional<std::string> commitMsg);
virtual std::pair<StorePath, Input> fetch(ref<Store> store, const Input & input) = 0;
/* Note: the default implementations of fetch() and lazyFetch()
are defined using the other, so implementations have to
override at least one. */
virtual std::pair<StorePath, Input> fetch(ref<Store> store, const Input & input);
virtual std::pair<ref<InputAccessor>, Input> lazyFetch(ref<Store> store, const Input & input);