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Introduce OutputName and OutputNameView type aliases

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Hopefully they make the code easier to understand!
This commit is contained in:
John Ericson 2023-08-25 09:53:12 -04:00
parent 0a6ac133cf
commit 2f5d3da806
11 changed files with 45 additions and 33 deletions
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26
src/libstore/outputs-spec.hh
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@ -13,24 +13,36 @@
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<std::string> {
using std::set<std::string>::set;
struct Names : std::set<OutputName> {
using std::set<OutputName>::set;
/* These need to be "inherited manually" */
Names(const std::set<std::string> & s)
: std::set<std::string>(s)
Names(const std::set<OutputName> & s)
: std::set<OutputName>(s)
{ assert(!empty()); }
/**
* Needs to be "inherited manually"
*/
Names(std::set<std::string> && s)
: std::set<std::string>(s)
Names(std::set<OutputName> && s)
: std::set<OutputName>(s)
{ assert(!empty()); }
/* This set should always be non-empty, so we delete this
@ -57,7 +69,7 @@ struct OutputsSpec {
*/
OutputsSpec() = delete;
bool contains(const std::string & output) const;
bool contains(const OutputName & output) const;
/**
* Create a new OutputsSpec which is the union of this and that.