eldritch horrorsandjade
b0d7a81613
clangd broke because it can't look through symlinks. compile_commands manipulation does not fix it, clangd configuration does not fix it, a vfs overlay does not fix it, and while a combination of those can fix it with a bind mount in place that's just too cursed to even consider clangd bug: https://github.com/llvm/llvm-project/issues/116877 Change-Id: I8e3e8489548eb3a7aa65ac9d12a5ec8abf814aec
79 lines
2.1 KiB
C++
79 lines
2.1 KiB
C++
#pragma once
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///@file
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#include "lix/libutil/error.hh"
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#include "lix/libutil/types.hh"
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namespace nix {
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/**
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* The list of available experimental features.
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*/
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enum struct ExperimentalFeature
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{
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#include "experimental-features.gen.inc"
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NumXpFeatures, // number of available experimental features, do not use
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};
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enum struct ExperimentalFeatures {};
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inline ExperimentalFeatures operator| (ExperimentalFeatures a, ExperimentalFeatures b) {
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return static_cast<ExperimentalFeatures>(static_cast<size_t>(a) | static_cast<size_t>(b));
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}
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inline ExperimentalFeatures operator| (ExperimentalFeatures a, ExperimentalFeature b) {
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return a | static_cast<ExperimentalFeatures>(1 << static_cast<size_t>(b));
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}
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inline ExperimentalFeatures operator& (ExperimentalFeatures a, ExperimentalFeature b) {
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return static_cast<ExperimentalFeatures>(static_cast<size_t>(a) & (1 << static_cast<size_t>(b)));
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}
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/**
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* Just because writing `ExperimentalFeature::CaDerivations` is way too long
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*/
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using Xp = ExperimentalFeature;
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/**
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* Parse an experimental feature (enum value) from its name. Experimental
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* feature flag names are hyphenated and do not contain spaces.
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*/
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const std::optional<ExperimentalFeature> parseExperimentalFeature(
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const std::string_view & name);
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/**
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* Show the name of an experimental feature. This is the opposite of
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* parseExperimentalFeature().
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*/
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std::string_view showExperimentalFeature(const ExperimentalFeature);
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/**
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* Shorthand for `str << showExperimentalFeature(feature)`.
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*/
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std::ostream & operator<<(
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std::ostream & str,
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const ExperimentalFeature & feature);
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/**
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* Parse a set of strings to the corresponding set of experimental
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* features, ignoring (but warning for) any unknown feature.
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*/
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ExperimentalFeatures parseFeatures(const std::set<std::string> &);
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/**
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* An experimental feature was required for some (experimental)
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* operation, but was not enabled.
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*/
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class MissingExperimentalFeature : public Error
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{
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public:
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/**
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* The experimental feature that was required but not enabled.
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*/
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ExperimentalFeature missingFeature;
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MissingExperimentalFeature(ExperimentalFeature missingFeature);
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};
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}
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