wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-06-27 16:51:15 +02:00
Code Activity

Support range-based for loop over list values

Browse source
This commit is contained in:
Eelco Dolstra 2021-11-24 20:21:34 +01:00
parent ca82967ee3
commit b6c8e57056
10 changed files with 103 additions and 79 deletions
Download patch file Download diff file Expand all files Collapse all files

30
src/libexpr/value.hh
View file

@ -1,5 +1,7 @@
#pragma once
#include <cassert>
#include "symbol-table.hh"
#if HAVE_BOEHMGC
@ -350,6 +352,34 @@ public:
bool isTrivial() const;
std::vector<std::pair<Path, std::string>> getContext();
auto listItems()
{
struct ListIterable
{
typedef Value * const * iterator;
iterator _begin, _end;
iterator begin() const { return _begin; }
iterator end() const { return _end; }
};
assert(isList());
auto begin = listElems();
return ListIterable { begin, begin + listSize() };
}
auto listItems() const
{
struct ConstListIterable
{
typedef const Value * const * iterator;
iterator _begin, _end;
iterator begin() const { return _begin; }
iterator end() const { return _end; }
};
assert(isList());
auto begin = listElems();
return ConstListIterable { begin, begin + listSize() };
}
};