nixos/nix
1
1
Fork 0
mirror of https://github.com/NixOS/nix.git synced 2025-11-10 12:36:01 +01:00
Code Activity

Cleanup: Use C++23 "explicit this" for recursive lambdas

Browse source 
Try to pass by reference where possible.

Co-authored-by: Sergei Zimmerman <sergei@zimmerman.foo>
This commit is contained in:
Eelco Dolstra 2025-10-29 15:17:37 +01:00 • committed by John Ericson
parent 3b2186e1c8
commit 1507843f6c
15 changed files with 60 additions and 112 deletions
Download patch file Download diff file Expand all files Collapse all files

28
src/libexpr/eval.cc
View file

@ -2160,30 +2160,28 @@ void EvalState::forceValueDeep(Value & v)
{
std::set<const Value *> seen;
std::function<void(Value & v)> recurse;
recurse = [&](Value & v) {
[&, &state(*this)](this const auto & recurse, Value & v) {
if (!seen.insert(&v).second)
return;
forceValue(v, v.determinePos(noPos));
state.forceValue(v, v.determinePos(noPos));
if (v.type() == nAttrs) {
for (auto & i : *v.attrs())
try {
// If the value is a thunk, we're evaling. Otherwise no trace necessary.
auto dts = debugRepl && i.value->isThunk() ? makeDebugTraceStacker(
*this,
*i.value->thunk().expr,
*i.value->thunk().env,
i.pos,
"while evaluating the attribute '%1%'",
symbols[i.name])
: nullptr;
auto dts = state.debugRepl && i.value->isThunk() ? makeDebugTraceStacker(
state,
*i.value->thunk().expr,
*i.value->thunk().env,
i.pos,
"while evaluating the attribute '%1%'",
state.symbols[i.name])
: nullptr;
recurse(*i.value);
} catch (Error & e) {
addErrorTrace(e, i.pos, "while evaluating the attribute '%1%'", symbols[i.name]);
state.addErrorTrace(e, i.pos, "while evaluating the attribute '%1%'", state.symbols[i.name]);
throw;
}
}
@ -2192,9 +2190,7 @@ void EvalState::forceValueDeep(Value & v)
for (auto v2 : v.listView())
recurse(*v2);
}
};
recurse(v);
}(v);
}
NixInt EvalState::forceInt(Value & v, const PosIdx pos, std::string_view errorCtx)