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Merge remote-tracking branch 'origin/master' into lazy-trees

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This commit is contained in:
Eelco Dolstra 2022-12-05 13:05:18 +01:00
commit fcdca3d776
65 changed files with 1366 additions and 1205 deletions
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21
src/libexpr/primops.cc
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@ -8,13 +8,13 @@
#include "references.hh"
#include "store-api.hh"
#include "util.hh"
#include "json.hh"
#include "value-to-json.hh"
#include "value-to-xml.hh"
#include "primops.hh"
#include "fs-input-accessor.hh"
#include <boost/container/small_vector.hpp>
#include <nlohmann/json.hpp>
#include <sys/types.h>
#include <sys/stat.h>
@ -1013,6 +1013,7 @@ static void prim_second(EvalState & state, const PosIdx pos, Value * * args, Val
derivation. */
static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
using nlohmann::json;
state.forceAttrs(*args[0], pos);
/* Figure out the name first (for stack backtraces). */
@ -1034,11 +1035,10 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
}
/* Check whether attributes should be passed as a JSON file. */
std::ostringstream jsonBuf;
std::unique_ptr<JSONObject> jsonObject;
std::optional<json> jsonObject;
attr = args[0]->attrs->find(state.sStructuredAttrs);
if (attr != args[0]->attrs->end() && state.forceBool(*attr->value, pos))
jsonObject = std::make_unique<JSONObject>(jsonBuf);
jsonObject = json::object();
/* Check whether null attributes should be ignored. */
bool ignoreNulls = false;
@ -1140,8 +1140,7 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
if (i->name == state.sStructuredAttrs) continue;
auto placeholder(jsonObject->placeholder(key));
printValueAsJSON(state, true, *i->value, pos, placeholder, context);
(*jsonObject)[key] = printValueAsJSON(state, true, *i->value, pos, context);
if (i->name == state.sBuilder)
drv.builder = state.forceString(*i->value, context, posDrvName);
@ -1185,8 +1184,8 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
}
if (jsonObject) {
drv.env.emplace("__json", jsonObject->dump());
jsonObject.reset();
drv.env.emplace("__json", jsonBuf.str());
}
/* Everything in the context of the strings in the derivation
@ -2445,12 +2444,18 @@ static RegisterPrimOp primop_listToAttrs({
Construct a set from a list specifying the names and values of each
attribute. Each element of the list should be a set consisting of a
string-valued attribute `name` specifying the name of the attribute,
and an attribute `value` specifying its value. Example:
and an attribute `value` specifying its value.
In case of duplicate occurrences of the same name, the first
takes precedence.
Example:
```nix
builtins.listToAttrs
[ { name = "foo"; value = 123; }
{ name = "bar"; value = 456; }
{ name = "bar"; value = 420; }
]
```