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#pragma once
///@file
#include <cassert>
#include <optional>
#include <set>
#include <variant>
#include "comparator.hh"
#include "json-impls.hh"
#include "comparator.hh"
#include "variant-wrapper.hh"
namespace nix {
/**
* An (owned) output name. Just a type alias used to make code more
* readible.
*/
typedef std::string OutputName;
/**
* A borrowed output name. Just a type alias used to make code more
* readible.
*/
typedef std::string_view OutputNameView;
struct OutputsSpec {
/**
* A non-empty set of outputs, specified by name
*/
struct Names : std::set<OutputName> {
using std::set<OutputName>::set;
/* These need to be "inherited manually" */
Names(const std::set<OutputName> & s)
: std::set<OutputName>(s)
{ assert(!empty()); }
/**
* Needs to be "inherited manually"
*/
Names(std::set<OutputName> && s)
: std::set<OutputName>(s)
{ assert(!empty()); }
/* This set should always be non-empty, so we delete this
constructor in order make creating empty ones by mistake harder.
*/
Names() = delete;
};
/**
* The set of all outputs, without needing to name them explicitly
*/
struct All : std::monostate { };
typedef std::variant<All, Names> Raw;
Raw raw;
GENERATE_CMP(OutputsSpec, me->raw);
MAKE_WRAPPER_CONSTRUCTOR(OutputsSpec);
/**
* Force choosing a variant
*/
OutputsSpec() = delete;
bool contains(const OutputName & output) const;
/**
* Create a new OutputsSpec which is the union of this and that.
*/
OutputsSpec union_(const OutputsSpec & that) const;
/**
* Whether this OutputsSpec is a subset of that.
*/
bool isSubsetOf(const OutputsSpec & outputs) const;
/**
* Parse a string of the form 'output1,...outputN' or '*', returning
* the outputs spec.
*/
static OutputsSpec parse(std::string_view s);
static std::optional<OutputsSpec> parseOpt(std::string_view s);
std::string to_string() const;
};
struct ExtendedOutputsSpec {
struct Default : std::monostate { };
using Explicit = OutputsSpec;
typedef std::variant<Default, Explicit> Raw;
Raw raw;
GENERATE_CMP(ExtendedOutputsSpec, me->raw);
MAKE_WRAPPER_CONSTRUCTOR(ExtendedOutputsSpec);
/**
* Force choosing a variant
*/
ExtendedOutputsSpec() = delete;
/**
* Parse a string of the form 'prefix^output1,...outputN' or
* 'prefix^*', returning the prefix and the extended outputs spec.
*/
static std::pair<std::string_view, ExtendedOutputsSpec> parse(std::string_view s);
static std::optional<std::pair<std::string_view, ExtendedOutputsSpec>> parseOpt(std::string_view s);
std::string to_string() const;
};
}
JSON_IMPL(OutputsSpec)
JSON_IMPL(ExtendedOutputsSpec)
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