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Some backports from the flakes branch

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This commit is contained in:
Eelco Dolstra 2020-06-18 13:44:40 +02:00
parent 7083d33efe
commit 2a61bbf77f
6 changed files with 45 additions and 17 deletions
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13
src/libexpr/attr-path.cc
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@ -6,11 +6,11 @@
namespace nix {
static Strings parseAttrPath(const string & s)
static Strings parseAttrPath(std::string_view s)
{
Strings res;
string cur;
string::const_iterator i = s.begin();
auto i = s.begin();
while (i != s.end()) {
if (*i == '.') {
res.push_back(cur);
@ -32,6 +32,15 @@ static Strings parseAttrPath(const string & s)
}
std::vector<Symbol> parseAttrPath(EvalState & state, std::string_view s)
{
std::vector<Symbol> res;
for (auto & a : parseAttrPath(s))
res.push_back(state.symbols.create(a));
return res;
}
std::pair<Value *, Pos> findAlongAttrPath(EvalState & state, const string & attrPath,
Bindings & autoArgs, Value & vIn)
{