46 lines
818 B
C++
46 lines
818 B
C++
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#pragma once
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#include "util.hh"
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#include "path.hh"
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#include "eval.hh"
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#include <optional>
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namespace nix {
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struct Buildable
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{
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std::optional<StorePath> drvPath;
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std::map<std::string, StorePath> outputs;
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};
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typedef std::vector<Buildable> Buildables;
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struct Installable
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{
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virtual ~Installable() { }
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virtual std::string what() = 0;
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virtual Buildables toBuildables()
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{
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throw Error("argument '%s' cannot be built", what());
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}
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Buildable toBuildable();
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virtual std::pair<Value *, Pos> toValue(EvalState & state)
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{
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throw Error("argument '%s' cannot be evaluated", what());
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}
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/* Return a value only if this installable is a store path or a
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symlink to it. */
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virtual std::optional<StorePath> getStorePath()
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{
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return {};
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}
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};
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}
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