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libexpr: format fromTOML source

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Otherwise the next diff becomes very messy.

Change-Id: I6a6a6964d96543ade130d491f413ebd9fe2b7ff1
This commit is contained in:
Emily
2025-08-15 01:11:52 +01:00
parent d84bc45e17
commit c586596a9f
1 changed files with 65 additions and 59 deletions
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lix/libexpr/primops/fromTOML.cc
+65 -59
View File
@@ -6,77 +6,83 @@
namespace nix {
void prim_fromTOML(EvalState & state, Value * * args, Value & val)
void prim_fromTOML(EvalState & state, Value ** args, Value & val)
{
auto toml = state.forceStringNoCtx(*args[0], noPos, "while evaluating the argument passed to builtins.fromTOML");
auto toml = state.forceStringNoCtx(
*args[0], noPos, "while evaluating the argument passed to builtins.fromTOML"
);
std::istringstream tomlStream(std::string{toml});
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.ctx.buildBindings(size);
auto attrs = state.ctx.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);
size_t size = array.size();
v = state.ctx.mem.newList(size);
for (size_t i = 0; i < size; ++i)
visit(*(v.listElems()[i] = state.ctx.mem.allocValue()), array[i]);
}
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.ctx.buildBindings(2);
attrs.alloc("_type").mkString("timestamp");
std::ostringstream s;
s << t;
attrs.alloc("value").mkString(s.str());
v.mkAttrs(attrs);
} else {
// NOLINTNEXTLINE(lix-foreign-exceptions)
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);
size_t size = array.size();
v = state.ctx.mem.newList(size);
for (size_t i = 0; i < size; ++i) {
visit(*(v.listElems()[i] = state.ctx.mem.allocValue()), array[i]);
}
} 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.ctx.buildBindings(2);
attrs.alloc("_type").mkString("timestamp");
std::ostringstream s;
s << t;
attrs.alloc("value").mkString(s.str());
v.mkAttrs(attrs);
} else {
// NOLINTNEXTLINE(lix-foreign-exceptions)
throw std::runtime_error("Dates and times are not supported");
}
} break;
;
case toml::value_t::empty:
v.mkNull();
break;
;
}
};