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libexpr: Format primops/fromTOML.cc

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This commit is contained in:
Sergei Zimmerman 2025-08-13 22:37:03 +03:00
parent d52210fae3
commit 79b932277a
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1 changed files with 64 additions and 63 deletions
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127
src/libexpr/primops/fromTOML.cc
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@ -7,7 +7,7 @@
namespace nix {
static void prim_fromTOML(EvalState & state, const PosIdx pos, Value * * args, Value & val)
static void prim_fromTOML(EvalState & state, const PosIdx pos, Value ** args, Value & val)
{
auto toml = state.forceStringNoCtx(*args[0], pos, "while evaluating the argument passed to builtins.fromTOML");
@ -16,67 +16,69 @@ static void prim_fromTOML(EvalState & state, const PosIdx pos, Value * * args, V
std::function<void(Value &, toml::value)> visit;
visit = [&](Value & v, toml::value t) {
switch (t.type()) {
case toml::value_t::table: {
auto table = toml::get<toml::table>(t);
switch(t.type())
{
case toml::value_t::table:
{
auto table = toml::get<toml::table>(t);
size_t size = 0;
for (auto & i : table) {
(void) i;
size++;
}
size_t size = 0;
for (auto & i : table) { (void) i; size++; }
auto attrs = state.buildBindings(size);
auto attrs = state.buildBindings(size);
for (auto & elem : table)
visit(attrs.alloc(elem.first), elem.second);
for(auto & elem : table)
visit(attrs.alloc(elem.first), elem.second);
v.mkAttrs(attrs);
}
break;;
case toml::value_t::array:
{
auto array = toml::get<std::vector<toml::value>>(t);
auto list = state.buildList(array.size());
for (const auto & [n, v] : enumerate(list))
visit(*(v = state.allocValue()), array[n]);
v.mkList(list);
}
break;;
case toml::value_t::boolean:
v.mkBool(toml::get<bool>(t));
break;;
case toml::value_t::integer:
v.mkInt(toml::get<int64_t>(t));
break;;
case toml::value_t::floating:
v.mkFloat(toml::get<NixFloat>(t));
break;;
case toml::value_t::string:
v.mkString(toml::get<std::string>(t));
break;;
case toml::value_t::local_datetime:
case toml::value_t::offset_datetime:
case toml::value_t::local_date:
case toml::value_t::local_time:
{
if (experimentalFeatureSettings.isEnabled(Xp::ParseTomlTimestamps)) {
auto attrs = state.buildBindings(2);
attrs.alloc("_type").mkString("timestamp");
std::ostringstream s;
s << t;
attrs.alloc("value").mkString(s.str());
v.mkAttrs(attrs);
} else {
throw std::runtime_error("Dates and times are not supported");
}
}
break;;
case toml::value_t::empty:
v.mkNull();
break;;
v.mkAttrs(attrs);
} break;
;
case toml::value_t::array: {
auto array = toml::get<std::vector<toml::value>>(t);
auto list = state.buildList(array.size());
for (const auto & [n, v] : enumerate(list))
visit(*(v = state.allocValue()), array[n]);
v.mkList(list);
} break;
;
case toml::value_t::boolean:
v.mkBool(toml::get<bool>(t));
break;
;
case toml::value_t::integer:
v.mkInt(toml::get<int64_t>(t));
break;
;
case toml::value_t::floating:
v.mkFloat(toml::get<NixFloat>(t));
break;
;
case toml::value_t::string:
v.mkString(toml::get<std::string>(t));
break;
;
case toml::value_t::local_datetime:
case toml::value_t::offset_datetime:
case toml::value_t::local_date:
case toml::value_t::local_time: {
if (experimentalFeatureSettings.isEnabled(Xp::ParseTomlTimestamps)) {
auto attrs = state.buildBindings(2);
attrs.alloc("_type").mkString("timestamp");
std::ostringstream s;
s << t;
attrs.alloc("value").mkString(s.str());
v.mkAttrs(attrs);
} else {
throw std::runtime_error("Dates and times are not supported");
}
} break;
;
case toml::value_t::empty:
v.mkNull();
break;
;
}
};
@ -87,10 +89,10 @@ static void prim_fromTOML(EvalState & state, const PosIdx pos, Value * * args, V
}
}
static RegisterPrimOp primop_fromTOML({
.name = "fromTOML",
.args = {"e"},
.doc = R"(
static RegisterPrimOp primop_fromTOML(
{.name = "fromTOML",
.args = {"e"},
.doc = R"(
Convert a TOML string to a Nix value. For example,
```nix
@ -104,7 +106,6 @@ static RegisterPrimOp primop_fromTOML({
returns the value `{ s = "a"; table = { y = 2; }; x = 1; }`.
)",
.fun = prim_fromTOML
});
.fun = prim_fromTOML});
}