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Merge pull request #14584 from Radvendii/allocbytes-stringdata

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libexpr: use allocBytes() to allocate StringData
This commit is contained in:
John Ericson 2025-11-23 00:38:50 +00:00 • committed by GitHub
commit 327e8babf7
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20 changed files with 136 additions and 109 deletions
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6
src/libcmd/common-eval-args.cc
View file

@ -168,9 +168,9 @@ Bindings * MixEvalArgs::getAutoArgs(EvalState & state)
? state.rootPath(absPath(getCommandBaseDir()))
: state.rootPath(".")));
},
[&](const AutoArgString & arg) { v->mkString(arg.s); },
[&](const AutoArgFile & arg) { v->mkString(readFile(arg.path.string())); },
[&](const AutoArgStdin & arg) { v->mkString(readFile(STDIN_FILENO)); }},
[&](const AutoArgString & arg) { v->mkString(arg.s, state.mem); },
[&](const AutoArgFile & arg) { v->mkString(readFile(arg.path.string()), state.mem); },
[&](const AutoArgStdin & arg) { v->mkString(readFile(STDIN_FILENO), state.mem); }},
arg);
res.insert(state.symbols.create(name), v);
}

22
src/libexpr-c/nix_api_expr.cc
View file

@ -69,8 +69,8 @@ nix_err nix_expr_eval_from_string(
context->last_err_code = NIX_OK;
try {
nix::Expr * parsedExpr = state->state.parseExprFromString(expr, state->state.rootPath(nix::CanonPath(path)));
state->state.eval(parsedExpr, value->value);
state->state.forceValue(value->value, nix::noPos);
state->state.eval(parsedExpr, *value->value);
state->state.forceValue(*value->value, nix::noPos);
}
NIXC_CATCH_ERRS
}
@ -80,8 +80,8 @@ nix_err nix_value_call(nix_c_context * context, EvalState * state, Value * fn, n
if (context)
context->last_err_code = NIX_OK;
try {
state->state.callFunction(fn->value, arg->value, value->value, nix::noPos);
state->state.forceValue(value->value, nix::noPos);
state->state.callFunction(*fn->value, *arg->value, *value->value, nix::noPos);
state->state.forceValue(*value->value, nix::noPos);
}
NIXC_CATCH_ERRS
}
@ -91,9 +91,15 @@ nix_err nix_value_call_multi(
{
if (context)
context->last_err_code = NIX_OK;
std::vector<nix::Value *> internal_args;
internal_args.reserve(nargs);
for (size_t i = 0; i < nargs; i++)
internal_args.push_back(args[i]->value);
try {
state->state.callFunction(fn->value, {(nix::Value **) args, nargs}, value->value, nix::noPos);
state->state.forceValue(value->value, nix::noPos);
state->state.callFunction(*fn->value, {internal_args.data(), nargs}, *value->value, nix::noPos);
state->state.forceValue(*value->value, nix::noPos);
}
NIXC_CATCH_ERRS
}
@ -103,7 +109,7 @@ nix_err nix_value_force(nix_c_context * context, EvalState * state, nix_value *
if (context)
context->last_err_code = NIX_OK;
try {
state->state.forceValue(value->value, nix::noPos);
state->state.forceValue(*value->value, nix::noPos);
}
NIXC_CATCH_ERRS
}
@ -113,7 +119,7 @@ nix_err nix_value_force_deep(nix_c_context * context, EvalState * state, nix_val
if (context)
context->last_err_code = NIX_OK;
try {
state->state.forceValueDeep(value->value);
state->state.forceValueDeep(*value->value);
}
NIXC_CATCH_ERRS
}

8
src/libexpr-c/nix_api_expr_internal.h
View file

@ -39,7 +39,13 @@ struct ListBuilder
struct nix_value
{
nix::Value value;
nix::Value * value;
/**
* As we move to a managed heap, we need EvalMemory in more places. Ideally, we would take in EvalState or
* EvalMemory as an argument when we need it, but we don't want to make changes to the stable C api, so we stuff it
* into the nix_value that will get passed in to the relevant functions.
*/
nix::EvalMemory * mem;
};
struct nix_string_return

62
src/libexpr-c/nix_api_value.cc
View file

@ -20,7 +20,7 @@ static const nix::Value & check_value_not_null(const nix_value * value)
if (!value) {
throw std::runtime_error("nix_value is null");
}
return *((const nix::Value *) value);
return *value->value;
}
static nix::Value & check_value_not_null(nix_value * value)
@ -28,7 +28,7 @@ static nix::Value & check_value_not_null(nix_value * value)
if (!value) {
throw std::runtime_error("nix_value is null");
}
return value->value;
return *value->value;
}
static const nix::Value & check_value_in(const nix_value * value)
@ -58,9 +58,14 @@ static nix::Value & check_value_out(nix_value * value)
return v;
}
static inline nix_value * as_nix_value_ptr(nix::Value * v)
static inline nix_value * new_nix_value(nix::Value * v, nix::EvalMemory & mem)
{
return reinterpret_cast<nix_value *>(v);
nix_value * ret = new (mem.allocBytes(sizeof(nix_value))) nix_value{
.value = v,
.mem = &mem,
};
nix_gc_incref(nullptr, ret);
return ret;
}
/**
@ -69,7 +74,13 @@ static inline nix_value * as_nix_value_ptr(nix::Value * v)
* Deals with errors and converts arguments from C++ into C types.
*/
static void nix_c_primop_wrapper(
PrimOpFun f, void * userdata, nix::EvalState & state, const nix::PosIdx pos, nix::Value ** args, nix::Value & v)
PrimOpFun f,
void * userdata,
int arity,
nix::EvalState & state,
const nix::PosIdx pos,
nix::Value ** args,
nix::Value & v)
{
nix_c_context ctx;
@ -85,8 +96,15 @@ static void nix_c_primop_wrapper(
// ok because we don't see a need for this yet (e.g. inspecting thunks,
// or maybe something to make blackholes work better; we don't know).
nix::Value vTmp;
nix_value * vTmpPtr = new_nix_value(&vTmp, state.mem);
f(userdata, &ctx, (EvalState *) &state, (nix_value **) args, (nix_value *) &vTmp);
std::vector<nix_value *> external_args;
external_args.reserve(arity);
for (int i = 0; i < arity; i++) {
nix_value * external_arg = new_nix_value(args[i], state.mem);
external_args.push_back(external_arg);
}
f(userdata, &ctx, (EvalState *) &state, external_args.data(), vTmpPtr);
if (ctx.last_err_code != NIX_OK) {
/* TODO: Throw different errors depending on the error code */
@ -135,7 +153,7 @@ PrimOp * nix_alloc_primop(
.args = {},
.arity = (size_t) arity,
.doc = doc,
.fun = std::bind(nix_c_primop_wrapper, fun, user_data, _1, _2, _3, _4)};
.fun = std::bind(nix_c_primop_wrapper, fun, user_data, arity, _1, _2, _3, _4)};
if (args)
for (size_t i = 0; args[i]; i++)
p->args.emplace_back(*args);
@ -160,8 +178,7 @@ nix_value * nix_alloc_value(nix_c_context * context, EvalState * state)
if (context)
context->last_err_code = NIX_OK;
try {
nix_value * res = as_nix_value_ptr(state->state.allocValue());
nix_gc_incref(nullptr, res);
nix_value * res = new_nix_value(state->state.allocValue(), state->state.mem);
return res;
}
NIXC_CATCH_ERRS_NULL
@ -331,10 +348,10 @@ nix_value * nix_get_list_byidx(nix_c_context * context, const nix_value * value,
return nullptr;
}
auto * p = v.listView()[ix];
nix_gc_incref(nullptr, p);
if (p != nullptr)
state->state.forceValue(*p, nix::noPos);
return as_nix_value_ptr(p);
if (p == nullptr)
return nullptr;
state->state.forceValue(*p, nix::noPos);
return new_nix_value(p, state->state.mem);
}
NIXC_CATCH_ERRS_NULL
}
@ -352,9 +369,8 @@ nix_get_list_byidx_lazy(nix_c_context * context, const nix_value * value, EvalSt
return nullptr;
}
auto * p = v.listView()[ix];
nix_gc_incref(nullptr, p);
// Note: intentionally NOT calling forceValue() to keep the element lazy
return as_nix_value_ptr(p);
return new_nix_value(p, state->state.mem);
}
NIXC_CATCH_ERRS_NULL
}
@ -369,9 +385,8 @@ nix_value * nix_get_attr_byname(nix_c_context * context, const nix_value * value
nix::Symbol s = state->state.symbols.create(name);
auto attr = v.attrs()->get(s);
if (attr) {
nix_gc_incref(nullptr, attr->value);
state->state.forceValue(*attr->value, nix::noPos);
return as_nix_value_ptr(attr->value);
return new_nix_value(attr->value, state->state.mem);
}
nix_set_err_msg(context, NIX_ERR_KEY, "missing attribute");
return nullptr;
@ -390,9 +405,8 @@ nix_get_attr_byname_lazy(nix_c_context * context, const nix_value * value, EvalS
nix::Symbol s = state->state.symbols.create(name);
auto attr = v.attrs()->get(s);
if (attr) {
nix_gc_incref(nullptr, attr->value);
// Note: intentionally NOT calling forceValue() to keep the attribute lazy
return as_nix_value_ptr(attr->value);
return new_nix_value(attr->value, state->state.mem);
}
nix_set_err_msg(context, NIX_ERR_KEY, "missing attribute");
return nullptr;
@ -440,9 +454,8 @@ nix_get_attr_byidx(nix_c_context * context, nix_value * value, EvalState * state
}
const nix::Attr & a = (*v.attrs())[i];
*name = state->state.symbols[a.name].c_str();
nix_gc_incref(nullptr, a.value);
state->state.forceValue(*a.value, nix::noPos);
return as_nix_value_ptr(a.value);
return new_nix_value(a.value, state->state.mem);
}
NIXC_CATCH_ERRS_NULL
}
@ -461,9 +474,8 @@ nix_value * nix_get_attr_byidx_lazy(
}
const nix::Attr & a = (*v.attrs())[i];
*name = state->state.symbols[a.name].c_str();
nix_gc_incref(nullptr, a.value);
// Note: intentionally NOT calling forceValue() to keep the attribute lazy
return as_nix_value_ptr(a.value);
return new_nix_value(a.value, state->state.mem);
}
NIXC_CATCH_ERRS_NULL
}
@ -503,7 +515,7 @@ nix_err nix_init_string(nix_c_context * context, nix_value * value, const char *
context->last_err_code = NIX_OK;
try {
auto & v = check_value_out(value);
v.mkString(std::string_view(str));
v.mkString(std::string_view(str), *value->mem);
}
NIXC_CATCH_ERRS
}
@ -514,7 +526,7 @@ nix_err nix_init_path_string(nix_c_context * context, EvalState * s, nix_value *
context->last_err_code = NIX_OK;
try {
auto & v = check_value_out(value);
v.mkPath(s->state.rootPath(nix::CanonPath(str)));
v.mkPath(s->state.rootPath(nix::CanonPath(str)), s->state.mem);
}
NIXC_CATCH_ERRS
}

2
src/libexpr-tests/json.cc
View file

@ -73,7 +73,7 @@ TEST_F(JSONValueTest, StringQuotes)
TEST_F(JSONValueTest, DISABLED_Path)
{
Value v;
v.mkPath(state.rootPath(CanonPath("/test")));
v.mkPath(state.rootPath(CanonPath("/test")), state.mem);
ASSERT_EQ(getJSONValue(v), "\"/nix/store/g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-x\"");
}
} /* namespace nix */

4
src/libexpr-tests/value/print.cc
View file

@ -268,7 +268,7 @@ struct StringPrintingTests : LibExprTest
void test(std::string_view literal, std::string_view expected, unsigned int maxLength, A... args)
{
Value v;
v.mkString(literal);
v.mkString(literal, state.mem);
std::stringstream out;
printValue(state, out, v, PrintOptions{.maxStringLength = maxLength});
@ -353,7 +353,7 @@ TEST_F(ValuePrintingTests, ansiColorsStringElided)
TEST_F(ValuePrintingTests, ansiColorsPath)
{
Value v;
v.mkPath(state.rootPath(CanonPath("puppy")));
v.mkPath(state.rootPath(CanonPath("puppy")), state.mem);
test(v, ANSI_GREEN "/puppy" ANSI_NORMAL, PrintOptions{.ansiColors = true});
}

26
src/libexpr/eval.cc
View file

@ -81,20 +81,20 @@ static const char * makeImmutableString(std::string_view s)
return t;
}
StringData & StringData::alloc(size_t size)
StringData & StringData::alloc(EvalMemory & mem, size_t size)
{
void * t = GC_MALLOC_ATOMIC(sizeof(StringData) + size + 1);
void * t = mem.allocBytes(sizeof(StringData) + size + 1);
if (!t)
throw std::bad_alloc();
auto res = new (t) StringData(size);
return *res;
}
const StringData & StringData::make(std::string_view s)
const StringData & StringData::make(EvalMemory & mem, std::string_view s)
{
if (s.empty())
return ""_sds;
auto & res = alloc(s.size());
auto & res = alloc(mem, s.size());
std::memcpy(&res.data_, s.data(), s.size());
res.data_[s.size()] = '\0';
return res;
@ -849,9 +849,9 @@ DebugTraceStacker::DebugTraceStacker(EvalState & evalState, DebugTrace t)
evalState.runDebugRepl(nullptr, trace.env, trace.expr);
}
void Value::mkString(std::string_view s)
void Value::mkString(std::string_view s, EvalMemory & mem)
{
mkStringNoCopy(StringData::make(s));
mkStringNoCopy(StringData::make(mem, s));
}
Value::StringWithContext::Context *
@ -862,13 +862,13 @@ Value::StringWithContext::Context::fromBuilder(const NixStringContext & context,
auto ctx = new (mem.allocBytes(sizeof(Context) + context.size() * sizeof(value_type))) Context(context.size());
std::ranges::transform(
context, ctx->elems, [](const NixStringContextElem & elt) { return &StringData::make(elt.to_string()); });
context, ctx->elems, [&](const NixStringContextElem & elt) { return &StringData::make(mem, elt.to_string()); });
return ctx;
}
void Value::mkString(std::string_view s, const NixStringContext & context, EvalMemory & mem)
{
mkStringNoCopy(StringData::make(s), Value::StringWithContext::Context::fromBuilder(context, mem));
mkStringNoCopy(StringData::make(mem, s), Value::StringWithContext::Context::fromBuilder(context, mem));
}
void Value::mkStringMove(const StringData & s, const NixStringContext & context, EvalMemory & mem)
@ -876,9 +876,9 @@ void Value::mkStringMove(const StringData & s, const NixStringContext & context,
mkStringNoCopy(s, Value::StringWithContext::Context::fromBuilder(context, mem));
}
void Value::mkPath(const SourcePath & path)
void Value::mkPath(const SourcePath & path, EvalMemory & mem)
{
mkPath(&*path.accessor, StringData::make(path.path.abs()));
mkPath(&*path.accessor, StringData::make(mem, path.path.abs()));
}
inline Value * EvalState::lookupVar(Env * env, const ExprVar & var, bool noEval)
@ -943,7 +943,7 @@ void EvalState::mkPos(Value & v, PosIdx p)
auto origin = positions.originOf(p);
if (auto path = std::get_if<SourcePath>(&origin)) {
auto attrs = buildBindings(3);
attrs.alloc(s.file).mkString(path->path.abs());
attrs.alloc(s.file).mkString(path->path.abs(), mem);
makePositionThunks(*this, p, attrs.alloc(s.line), attrs.alloc(s.column));
v.mkAttrs(attrs);
} else
@ -2139,9 +2139,9 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
for (const auto & part : strings) {
resultStr += *part;
}
v.mkPath(state.rootPath(CanonPath(resultStr)));
v.mkPath(state.rootPath(CanonPath(resultStr)), state.mem);
} else {
auto & resultStr = StringData::alloc(sSize);
auto & resultStr = StringData::alloc(state.mem, sSize);
auto * tmp = resultStr.data();
for (const auto & part : strings) {
std::memcpy(tmp, part->data(), part->size());

8
src/libexpr/include/nix/expr/value.hh
View file

@ -232,13 +232,13 @@ public:
* Allocate StringData on the (possibly) GC-managed heap and copy
* the contents of s to it.
*/
static const StringData & make(std::string_view s);
static const StringData & make(EvalMemory & mem, std::string_view s);
/**
* Allocate StringData on the (possibly) GC-managed heap.
* @param size Length of the string (without the NUL terminator).
*/
static StringData & alloc(size_t size);
static StringData & alloc(EvalMemory & mem, size_t size);
size_t size() const
{
@ -1147,13 +1147,13 @@ public:
setStorage(StringWithContext{.str = &s, .context = context});
}
void mkString(std::string_view s);
void mkString(std::string_view s, EvalMemory & mem);
void mkString(std::string_view s, const NixStringContext & context, EvalMemory & mem);
void mkStringMove(const StringData & s, const NixStringContext & context, EvalMemory & mem);
void mkPath(const SourcePath & path);
void mkPath(const SourcePath & path, EvalMemory & mem);
inline void mkPath(SourceAccessor * accessor, const StringData & path) noexcept
{

2
src/libexpr/json-to-value.cc
View file

@ -151,7 +151,7 @@ public:
bool string(string_t & val) override
{
forceNoNullByte(val);
rs->value(state).mkString(val);
rs->value(state).mkString(val, state.mem);
rs->add();
return true;
}

46
src/libexpr/primops.cc
View file

@ -53,7 +53,7 @@ RegisterPrimOp::PrimOps & RegisterPrimOp::primOps()
static inline Value * mkString(EvalState & state, const std::csub_match & match)
{
Value * v = state.allocValue();
v->mkString({match.first, match.second});
v->mkString({match.first, match.second}, state.mem);
return v;
}
@ -230,12 +230,12 @@ void derivationToValue(
NixStringContextElem::DrvDeep{.drvPath = storePath},
},
state.mem);
attrs.alloc(state.s.name).mkString(drv.env["name"]);
attrs.alloc(state.s.name).mkString(drv.env["name"], state.mem);
auto list = state.buildList(drv.outputs.size());
for (const auto & [i, o] : enumerate(drv.outputs)) {
mkOutputString(state, attrs, storePath, o);
(list[i] = state.allocValue())->mkString(o.first);
(list[i] = state.allocValue())->mkString(o.first, state.mem);
}
attrs.alloc(state.s.outputs).mkList(list);
@ -519,7 +519,7 @@ static void prim_typeOf(EvalState & state, const PosIdx pos, Value ** args, Valu
v.mkStringNoCopy("lambda"_sds);
break;
case nExternal:
v.mkString(args[0]->external()->typeOf());
v.mkString(args[0]->external()->typeOf(), state.mem);
break;
case nFloat:
v.mkStringNoCopy("float"_sds);
@ -1176,7 +1176,7 @@ static void prim_getEnv(EvalState & state, const PosIdx pos, Value ** args, Valu
{
std::string name(
state.forceStringNoCtx(*args[0], pos, "while evaluating the first argument passed to builtins.getEnv"));
v.mkString(state.settings.restrictEval || state.settings.pureEval ? "" : getEnv(name).value_or(""));
v.mkString(state.settings.restrictEval || state.settings.pureEval ? "" : getEnv(name).value_or(""), state.mem);
}
static RegisterPrimOp primop_getEnv({
@ -1842,8 +1842,10 @@ static RegisterPrimOp primop_derivationStrict(
‘out’. */
static void prim_placeholder(EvalState & state, const PosIdx pos, Value ** args, Value & v)
{
v.mkString(hashPlaceholder(
state.forceStringNoCtx(*args[0], pos, "while evaluating the first argument passed to builtins.placeholder")));
v.mkString(
hashPlaceholder(state.forceStringNoCtx(
*args[0], pos, "while evaluating the first argument passed to builtins.placeholder")),
state.mem);
}
static RegisterPrimOp primop_placeholder({
@ -2027,7 +2029,7 @@ static void prim_dirOf(EvalState & state, const PosIdx pos, Value ** args, Value
state.forceValue(*args[0], pos);
if (args[0]->type() == nPath) {
auto path = args[0]->path();
v.mkPath(path.path.isRoot() ? path : path.parent());
v.mkPath(path.path.isRoot() ? path : path.parent(), state.mem);
} else {
NixStringContext context;
auto path = state.coerceToString(
@ -2144,7 +2146,7 @@ static void prim_findFile(EvalState & state, const PosIdx pos, Value ** args, Va
auto path =
state.forceStringNoCtx(*args[1], pos, "while evaluating the second argument passed to builtins.findFile");
v.mkPath(state.findFile(lookupPath, path, pos));
v.mkPath(state.findFile(lookupPath, path, pos), state.mem);
}
static RegisterPrimOp primop_findFile(
@ -2293,7 +2295,7 @@ static void prim_hashFile(EvalState & state, const PosIdx pos, Value ** args, Va
auto path = realisePath(state, pos, *args[1]);
v.mkString(hashString(*ha, path.readFile()).to_string(HashFormat::Base16, false));
v.mkString(hashString(*ha, path.readFile()).to_string(HashFormat::Base16, false), state.mem);
}
static RegisterPrimOp primop_hashFile({
@ -2382,7 +2384,7 @@ static void prim_readDir(EvalState & state, const PosIdx pos, Value ** args, Val
// detailed node info quickly in this case we produce a thunk to
// query the file type lazily.
auto epath = state.allocValue();
epath->mkPath(path / name);
epath->mkPath(path / name, state.mem);
if (!readFileType)
readFileType = &state.getBuiltin("readFileType");
attr.mkApp(readFileType, epath);
@ -2763,7 +2765,7 @@ bool EvalState::callPathFilter(Value * filterFun, const SourcePath & path, PosId
/* Call the filter function. The first argument is the path, the
second is a string indicating the type of the file. */
Value arg1;
arg1.mkString(path.path.abs());
arg1.mkString(path.path.abs(), mem);
// assert that type is not "unknown"
Value * args[]{&arg1, const_cast<Value *>(&fileTypeToString(*this, st.type))};
@ -4541,7 +4543,7 @@ static void prim_hashString(EvalState & state, const PosIdx pos, Value ** args,
auto s =
state.forceString(*args[1], context, pos, "while evaluating the second argument passed to builtins.hashString");
v.mkString(hashString(*ha, s).to_string(HashFormat::Base16, false));
v.mkString(hashString(*ha, s).to_string(HashFormat::Base16, false), state.mem);
}
static RegisterPrimOp primop_hashString({
@ -4574,7 +4576,7 @@ static void prim_convertHash(EvalState & state, const PosIdx pos, Value ** args,
HashFormat hf = parseHashFormat(
state.forceStringNoCtx(*iteratorToHashFormat->value, pos, "while evaluating the attribute 'toHashFormat'"));
v.mkString(Hash::parseAny(hash, ha).to_string(hf, hf == HashFormat::SRI));
v.mkString(Hash::parseAny(hash, ha).to_string(hf, hf == HashFormat::SRI), state.mem);
}
static RegisterPrimOp primop_convertHash({
@ -4992,8 +4994,8 @@ static void prim_parseDrvName(EvalState & state, const PosIdx pos, Value ** args
state.forceStringNoCtx(*args[0], pos, "while evaluating the first argument passed to builtins.parseDrvName");
DrvName parsed(name);
auto attrs = state.buildBindings(2);
attrs.alloc(state.s.name).mkString(parsed.name);
attrs.alloc("version").mkString(parsed.version);
attrs.alloc(state.s.name).mkString(parsed.name, state.mem);
attrs.alloc("version").mkString(parsed.version, state.mem);
v.mkAttrs(attrs);
}
@ -5048,7 +5050,7 @@ static void prim_splitVersion(EvalState & state, const PosIdx pos, Value ** args
}
auto list = state.buildList(components.size());
for (const auto & [n, component] : enumerate(components))
(list[n] = state.allocValue())->mkString(std::move(component));
(list[n] = state.allocValue())->mkString(std::move(component), state.mem);
v.mkList(list);
}
@ -5192,7 +5194,7 @@ void EvalState::createBaseEnv(const EvalSettings & evalSettings)
});
if (!settings.pureEval)
v.mkString(settings.getCurrentSystem());
v.mkString(settings.getCurrentSystem(), mem);
addConstant(
"__currentSystem",
v,
@ -5224,7 +5226,7 @@ void EvalState::createBaseEnv(const EvalSettings & evalSettings)
.impureOnly = true,
});
v.mkString(nixVersion);
v.mkString(nixVersion, mem);
addConstant(
"__nixVersion",
v,
@ -5249,7 +5251,7 @@ void EvalState::createBaseEnv(const EvalSettings & evalSettings)
)",
});
v.mkString(store->storeDir);
v.mkString(store->storeDir, mem);
addConstant(
"__storeDir",
v,
@ -5314,8 +5316,8 @@ void EvalState::createBaseEnv(const EvalSettings & evalSettings)
auto list = buildList(lookupPath.elements.size());
for (const auto & [n, i] : enumerate(lookupPath.elements)) {
auto attrs = buildBindings(2);
attrs.alloc("path").mkString(i.path.s);
attrs.alloc("prefix").mkString(i.prefix.s);
attrs.alloc("path").mkString(i.path.s, mem);
attrs.alloc("prefix").mkString(i.prefix.s, mem);
(list[n] = allocValue())->mkAttrs(attrs);
}
v.mkList(list);

4
src/libexpr/primops/context.cc
View file

@ -11,7 +11,7 @@ static void prim_unsafeDiscardStringContext(EvalState & state, const PosIdx pos,
NixStringContext context;
auto s = state.coerceToString(
pos, *args[0], context, "while evaluating the argument passed to builtins.unsafeDiscardStringContext");
v.mkString(*s);
v.mkString(*s, state.mem);
}
static RegisterPrimOp primop_unsafeDiscardStringContext({
@ -218,7 +218,7 @@ static void prim_getContext(EvalState & state, const PosIdx pos, Value ** args,
if (!info.second.outputs.empty()) {
auto list = state.buildList(info.second.outputs.size());
for (const auto & [i, output] : enumerate(info.second.outputs))
(list[i] = state.allocValue())->mkString(output);
(list[i] = state.allocValue())->mkString(output, state.mem);
infoAttrs.alloc(state.s.outputs).mkList(list);
}
attrs.alloc(state.store->printStorePath(info.first)).mkAttrs(infoAttrs);

6
src/libexpr/primops/fetchMercurial.cc
View file

@ -86,12 +86,12 @@ static void prim_fetchMercurial(EvalState & state, const PosIdx pos, Value ** ar
auto attrs2 = state.buildBindings(8);
state.mkStorePathString(storePath, attrs2.alloc(state.s.outPath));
if (input2.getRef())
attrs2.alloc("branch").mkString(*input2.getRef());
attrs2.alloc("branch").mkString(*input2.getRef(), state.mem);
// Backward compatibility: set 'rev' to
// 0000000000000000000000000000000000000000 for a dirty tree.
auto rev2 = input2.getRev().value_or(Hash(HashAlgorithm::SHA1));
attrs2.alloc("rev").mkString(rev2.gitRev());
attrs2.alloc("shortRev").mkString(rev2.gitRev().substr(0, 12));
attrs2.alloc("rev").mkString(rev2.gitRev(), state.mem);
attrs2.alloc("shortRev").mkString(rev2.gitRev().substr(0, 12), state.mem);
if (auto revCount = input2.getRevCount())
attrs2.alloc("revCount").mkInt(*revCount);
v.mkAttrs(attrs2);

17
src/libexpr/primops/fetchTree.cc
View file

@ -35,7 +35,7 @@ void emitTreeAttrs(
// FIXME: support arbitrary input attributes.
if (auto narHash = input.getNarHash())
attrs.alloc("narHash").mkString(narHash->to_string(HashFormat::SRI, true));
attrs.alloc("narHash").mkString(narHash->to_string(HashFormat::SRI, true), state.mem);
if (input.getType() == "git")
attrs.alloc("submodules").mkBool(fetchers::maybeGetBoolAttr(input.attrs, "submodules").value_or(false));
@ -43,13 +43,13 @@ void emitTreeAttrs(
if (!forceDirty) {
if (auto rev = input.getRev()) {
attrs.alloc("rev").mkString(rev->gitRev());
attrs.alloc("shortRev").mkString(rev->gitShortRev());
attrs.alloc("rev").mkString(rev->gitRev(), state.mem);
attrs.alloc("shortRev").mkString(rev->gitShortRev(), state.mem);
} else if (emptyRevFallback) {
// Backwards compat for `builtins.fetchGit`: dirty repos return an empty sha1 as rev
auto emptyHash = Hash(HashAlgorithm::SHA1);
attrs.alloc("rev").mkString(emptyHash.gitRev());
attrs.alloc("shortRev").mkString(emptyHash.gitShortRev());
attrs.alloc("rev").mkString(emptyHash.gitRev(), state.mem);
attrs.alloc("shortRev").mkString(emptyHash.gitShortRev(), state.mem);
}
if (auto revCount = input.getRevCount())
@ -59,13 +59,14 @@ void emitTreeAttrs(
}
if (auto dirtyRev = fetchers::maybeGetStrAttr(input.attrs, "dirtyRev")) {
attrs.alloc("dirtyRev").mkString(*dirtyRev);
attrs.alloc("dirtyShortRev").mkString(*fetchers::maybeGetStrAttr(input.attrs, "dirtyShortRev"));
attrs.alloc("dirtyRev").mkString(*dirtyRev, state.mem);
attrs.alloc("dirtyShortRev").mkString(*fetchers::maybeGetStrAttr(input.attrs, "dirtyShortRev"), state.mem);
}
if (auto lastModified = input.getLastModified()) {
attrs.alloc("lastModified").mkInt(*lastModified);
attrs.alloc("lastModifiedDate").mkString(fmt("%s", std::put_time(std::gmtime(&*lastModified), "%Y%m%d%H%M%S")));
attrs.alloc("lastModifiedDate")
.mkString(fmt("%s", std::put_time(std::gmtime(&*lastModified), "%Y%m%d%H%M%S")), state.mem);
}
v.mkAttrs(attrs);

4
src/libexpr/primops/fromTOML.cc
View file

@ -126,7 +126,7 @@ static void prim_fromTOML(EvalState & state, const PosIdx pos, Value ** args, Va
case toml::value_t::string: {
auto s = toml::get<std::string_view>(t);
forceNoNullByte(s);
v.mkString(s);
v.mkString(s, state.mem);
} break;
case toml::value_t::local_datetime:
case toml::value_t::offset_datetime:
@ -142,7 +142,7 @@ static void prim_fromTOML(EvalState & state, const PosIdx pos, Value ** args, Va
s << t;
auto str = s.view();
forceNoNullByte(str);
attrs.alloc("value").mkString(str);
attrs.alloc("value").mkString(str, state.mem);
v.mkAttrs(attrs);
} else {
throw std::runtime_error("Dates and times are not supported");

2
src/libflake-c/nix_api_flake.cc
View file

@ -200,7 +200,7 @@ nix_value * nix_locked_flake_get_output_attrs(
nix_clear_err(context);
try {
auto v = nix_alloc_value(context, evalState);
nix::flake::callFlake(evalState->state, *lockedFlake->lockedFlake, v->value);
nix::flake::callFlake(evalState->state, *lockedFlake->lockedFlake, *v->value);
return v;
}
NIXC_CATCH_ERRS_NULL

4
src/libflake/flake-primops.cc
View file

@ -93,7 +93,7 @@ static void prim_parseFlakeRef(EvalState & state, const PosIdx pos, Value ** arg
auto & vv = binds.alloc(s);
std::visit(
overloaded{
[&vv](const std::string & value) { vv.mkString(value); },
[&vv, &state](const std::string & value) { vv.mkString(value, state.mem); },
[&vv](const uint64_t & value) { vv.mkInt(value); },
[&vv](const Explicit<bool> & value) { vv.mkBool(value.t); }},
value);
@ -156,7 +156,7 @@ static void prim_flakeRefToString(EvalState & state, const PosIdx pos, Value **
}
}
auto flakeRef = FlakeRef::fromAttrs(state.fetchSettings, attrs);
v.mkString(flakeRef.to_string());
v.mkString(flakeRef.to_string(), state.mem);
}
nix::PrimOp flakeRefToString({

4
src/libflake/flake.cc
View file

@ -956,7 +956,7 @@ void callFlake(EvalState & state, const LockedFlake & lockedFlake, Value & vRes)
auto key = keyMap.find(node);
assert(key != keyMap.end());
override.alloc(state.symbols.create("dir")).mkString(CanonPath(subdir).rel());
override.alloc(state.symbols.create("dir")).mkString(CanonPath(subdir).rel(), state.mem);
overrides.alloc(state.symbols.create(key->second)).mkAttrs(override);
}
@ -966,7 +966,7 @@ void callFlake(EvalState & state, const LockedFlake & lockedFlake, Value & vRes)
Value * vCallFlake = requireInternalFile(state, CanonPath("call-flake.nix"));
auto vLocks = state.allocValue();
vLocks->mkString(lockFileStr);
vLocks->mkString(lockFileStr, state.mem);
auto vFetchFinalTree = get(state.internalPrimOps, "fetchFinalTree");
assert(vFetchFinalTree);

2
src/nix/main.cc
View file

@ -271,7 +271,7 @@ static void showHelp(std::vector<std::string> subcommand, NixArgs & toplevel)
);
auto vDump = state.allocValue();
vDump->mkString(toplevel.dumpCli());
vDump->mkString(toplevel.dumpCli(), state.mem);
auto vRes = state.allocValue();
Value * args[]{&state.getBuiltin("false"), vDump};

4
src/nix/nix-env/nix-env.cc
View file

@ -132,7 +132,7 @@ static void getAllExprs(EvalState & state, const SourcePath & path, StringSet &
}
/* Load the expression on demand. */
auto vArg = state.allocValue();
vArg->mkPath(path2);
vArg->mkPath(path2, state.mem);
if (seen.size() == maxAttrs)
throw Error("too many Nix expressions in directory '%1%'", path);
attrs.alloc(attrName).mkApp(&state.getBuiltin("import"), vArg);
@ -483,7 +483,7 @@ static bool keep(PackageInfo & drv)
static void setMetaFlag(EvalState & state, PackageInfo & drv, const std::string & name, const std::string & value)
{
auto v = state.allocValue();
v->mkString(value);
v->mkString(value, state.mem);
drv.setMeta(name, v);
}

12
src/nix/nix-env/user-env.cc
View file

@ -58,20 +58,20 @@ bool createUserEnv(
auto attrs = state.buildBindings(7 + outputs.size());
attrs.alloc(state.s.type).mkStringNoCopy("derivation"_sds);
attrs.alloc(state.s.name).mkString(i.queryName());
attrs.alloc(state.s.name).mkString(i.queryName(), state.mem);
auto system = i.querySystem();
if (!system.empty())
attrs.alloc(state.s.system).mkString(system);
attrs.alloc(state.s.outPath).mkString(state.store->printStorePath(i.queryOutPath()));
attrs.alloc(state.s.system).mkString(system, state.mem);
attrs.alloc(state.s.outPath).mkString(state.store->printStorePath(i.queryOutPath()), state.mem);
if (drvPath)
attrs.alloc(state.s.drvPath).mkString(state.store->printStorePath(*drvPath));
attrs.alloc(state.s.drvPath).mkString(state.store->printStorePath(*drvPath), state.mem);
// Copy each output meant for installation.
auto outputsList = state.buildList(outputs.size());
for (const auto & [m, j] : enumerate(outputs)) {
(outputsList[m] = state.allocValue())->mkString(j.first);
(outputsList[m] = state.allocValue())->mkString(j.first, state.mem);
auto outputAttrs = state.buildBindings(2);
outputAttrs.alloc(state.s.outPath).mkString(state.store->printStorePath(*j.second));
outputAttrs.alloc(state.s.outPath).mkString(state.store->printStorePath(*j.second), state.mem);
attrs.alloc(j.first).mkAttrs(outputAttrs);
/* This is only necessary when installing store paths, e.g.,