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-rw-r--r--src/libexpr/attr-path.cc2
-rw-r--r--src/libexpr/attr-set.cc4
-rw-r--r--src/libexpr/eval-cache.cc26
-rw-r--r--src/libexpr/eval-inline.hh16
-rw-r--r--src/libexpr/eval.cc227
-rw-r--r--src/libexpr/flake/flake.cc38
-rw-r--r--src/libexpr/get-drvs.cc30
-rw-r--r--src/libexpr/nixexpr.hh2
-rw-r--r--src/libexpr/primops.cc97
-rw-r--r--src/libexpr/primops/fetchMercurial.cc2
-rw-r--r--src/libexpr/primops/fetchTree.cc12
-rw-r--r--src/libexpr/value-to-json.cc25
-rw-r--r--src/libexpr/value-to-xml.cc33
-rw-r--r--src/libexpr/value.hh244
14 files changed, 425 insertions, 333 deletions
diff --git a/src/libexpr/attr-path.cc b/src/libexpr/attr-path.cc
index 83854df49..2d37dcb7e 100644
--- a/src/libexpr/attr-path.cc
+++ b/src/libexpr/attr-path.cc
@@ -67,7 +67,7 @@ std::pair<Value *, Pos> findAlongAttrPath(EvalState & state, const string & attr
if (apType == apAttr) {
- if (v->type != tAttrs)
+ if (v->type() != nAttrs)
throw TypeError(
"the expression selected by the selection path '%1%' should be a set but is %2%",
attrPath,
diff --git a/src/libexpr/attr-set.cc b/src/libexpr/attr-set.cc
index b1d61a285..b6091c955 100644
--- a/src/libexpr/attr-set.cc
+++ b/src/libexpr/attr-set.cc
@@ -24,9 +24,7 @@ void EvalState::mkAttrs(Value & v, size_t capacity)
v = vEmptySet;
return;
}
- clearValue(v);
- v.type = tAttrs;
- v.attrs = allocBindings(capacity);
+ v.mkAttrs(allocBindings(capacity));
nrAttrsets++;
nrAttrsInAttrsets += capacity;
}
diff --git a/src/libexpr/eval-cache.cc b/src/libexpr/eval-cache.cc
index 7b025be23..75e9af787 100644
--- a/src/libexpr/eval-cache.cc
+++ b/src/libexpr/eval-cache.cc
@@ -390,14 +390,14 @@ Value & AttrCursor::forceValue()
}
if (root->db && (!cachedValue || std::get_if<placeholder_t>(&cachedValue->second))) {
- if (v.type == tString)
+ if (v.type() == nString)
cachedValue = {root->db->setString(getKey(), v.string.s, v.string.context),
string_t{v.string.s, {}}};
- else if (v.type == tPath)
+ else if (v.type() == nPath)
cachedValue = {root->db->setString(getKey(), v.path), v.path};
- else if (v.type == tBool)
+ else if (v.type() == nBool)
cachedValue = {root->db->setBool(getKey(), v.boolean), v.boolean};
- else if (v.type == tAttrs)
+ else if (v.type() == nAttrs)
; // FIXME: do something?
else
cachedValue = {root->db->setMisc(getKey()), misc_t()};
@@ -442,7 +442,7 @@ std::shared_ptr<AttrCursor> AttrCursor::maybeGetAttr(Symbol name, bool forceErro
auto & v = forceValue();
- if (v.type != tAttrs)
+ if (v.type() != nAttrs)
return nullptr;
//throw TypeError("'%s' is not an attribute set", getAttrPathStr());
@@ -512,10 +512,10 @@ std::string AttrCursor::getString()
auto & v = forceValue();
- if (v.type != tString && v.type != tPath)
- throw TypeError("'%s' is not a string but %s", getAttrPathStr(), showType(v.type));
+ if (v.type() != nString && v.type() != nPath)
+ throw TypeError("'%s' is not a string but %s", getAttrPathStr(), showType(v.type()));
- return v.type == tString ? v.string.s : v.path;
+ return v.type() == nString ? v.string.s : v.path;
}
string_t AttrCursor::getStringWithContext()
@@ -543,12 +543,12 @@ string_t AttrCursor::getStringWithContext()
auto & v = forceValue();
- if (v.type == tString)
+ if (v.type() == nString)
return {v.string.s, v.getContext()};
- else if (v.type == tPath)
+ else if (v.type() == nPath)
return {v.path, {}};
else
- throw TypeError("'%s' is not a string but %s", getAttrPathStr(), showType(v.type));
+ throw TypeError("'%s' is not a string but %s", getAttrPathStr(), showType(v.type()));
}
bool AttrCursor::getBool()
@@ -567,7 +567,7 @@ bool AttrCursor::getBool()
auto & v = forceValue();
- if (v.type != tBool)
+ if (v.type() != nBool)
throw TypeError("'%s' is not a Boolean", getAttrPathStr());
return v.boolean;
@@ -589,7 +589,7 @@ std::vector<Symbol> AttrCursor::getAttrs()
auto & v = forceValue();
- if (v.type != tAttrs)
+ if (v.type() != nAttrs)
throw TypeError("'%s' is not an attribute set", getAttrPathStr());
std::vector<Symbol> attrs;
diff --git a/src/libexpr/eval-inline.hh b/src/libexpr/eval-inline.hh
index 30f6ec7db..f6dead6b0 100644
--- a/src/libexpr/eval-inline.hh
+++ b/src/libexpr/eval-inline.hh
@@ -32,23 +32,21 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const
void EvalState::forceValue(Value & v, const Pos & pos)
{
- if (v.type == tThunk) {
+ if (v.isThunk()) {
Env * env = v.thunk.env;
Expr * expr = v.thunk.expr;
try {
- v.type = tBlackhole;
+ v.mkBlackhole();
//checkInterrupt();
expr->eval(*this, *env, v);
} catch (...) {
- v.type = tThunk;
- v.thunk.env = env;
- v.thunk.expr = expr;
+ v.mkThunk(env, expr);
throw;
}
}
- else if (v.type == tApp)
+ else if (v.isApp())
callFunction(*v.app.left, *v.app.right, v, noPos);
- else if (v.type == tBlackhole)
+ else if (v.isBlackhole())
throwEvalError(pos, "infinite recursion encountered");
}
@@ -56,7 +54,7 @@ void EvalState::forceValue(Value & v, const Pos & pos)
inline void EvalState::forceAttrs(Value & v)
{
forceValue(v);
- if (v.type != tAttrs)
+ if (v.type() != nAttrs)
throwTypeError("value is %1% while a set was expected", v);
}
@@ -64,7 +62,7 @@ inline void EvalState::forceAttrs(Value & v)
inline void EvalState::forceAttrs(Value & v, const Pos & pos)
{
forceValue(v, pos);
- if (v.type != tAttrs)
+ if (v.type() != nAttrs)
throwTypeError(pos, "value is %1% while a set was expected", v);
}
diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index c6f4d1716..5a641d02c 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -68,7 +68,7 @@ RootValue allocRootValue(Value * v)
}
-static void printValue(std::ostream & str, std::set<const Value *> & active, const Value & v)
+void printValue(std::ostream & str, std::set<const Value *> & active, const Value & v)
{
checkInterrupt();
@@ -77,7 +77,7 @@ static void printValue(std::ostream & str, std::set<const Value *> & active, con
return;
}
- switch (v.type) {
+ switch (v.internalType) {
case tInt:
str << v.integer;
break;
@@ -158,32 +158,27 @@ std::ostream & operator << (std::ostream & str, const Value & v)
const Value *getPrimOp(const Value &v) {
const Value * primOp = &v;
- while (primOp->type == tPrimOpApp) {
+ while (primOp->isPrimOpApp()) {
primOp = primOp->primOpApp.left;
}
- assert(primOp->type == tPrimOp);
+ assert(primOp->isPrimOp());
return primOp;
}
-
string showType(ValueType type)
{
switch (type) {
- case tInt: return "an integer";
- case tBool: return "a Boolean";
- case tString: return "a string";
- case tPath: return "a path";
- case tNull: return "null";
- case tAttrs: return "a set";
- case tList1: case tList2: case tListN: return "a list";
- case tThunk: return "a thunk";
- case tApp: return "a function application";
- case tLambda: return "a function";
- case tBlackhole: return "a black hole";
- case tPrimOp: return "a built-in function";
- case tPrimOpApp: return "a partially applied built-in function";
- case tExternal: return "an external value";
- case tFloat: return "a float";
+ case nInt: return "an integer";
+ case nBool: return "a Boolean";
+ case nString: return "a string";
+ case nPath: return "a path";
+ case nNull: return "null";
+ case nAttrs: return "a set";
+ case nList: return "a list";
+ case nFunction: return "a function";
+ case nExternal: return "an external value";
+ case nFloat: return "a float";
+ case nThunk: return "a thunk";
}
abort();
}
@@ -191,15 +186,18 @@ string showType(ValueType type)
string showType(const Value & v)
{
- switch (v.type) {
+ switch (v.internalType) {
case tString: return v.string.context ? "a string with context" : "a string";
case tPrimOp:
return fmt("the built-in function '%s'", string(v.primOp->name));
case tPrimOpApp:
return fmt("the partially applied built-in function '%s'", string(getPrimOp(v)->primOp->name));
case tExternal: return v.external->showType();
+ case tThunk: return "a thunk";
+ case tApp: return "a function application";
+ case tBlackhole: return "a black hole";
default:
- return showType(v.type);
+ return showType(v.type());
}
}
@@ -207,9 +205,9 @@ string showType(const Value & v)
bool Value::isTrivial() const
{
return
- type != tApp
- && type != tPrimOpApp
- && (type != tThunk
+ internalType != tApp
+ && internalType != tPrimOpApp
+ && (internalType != tThunk
|| (dynamic_cast<ExprAttrs *>(thunk.expr)
&& ((ExprAttrs *) thunk.expr)->dynamicAttrs.empty())
|| dynamic_cast<ExprLambda *>(thunk.expr)
@@ -432,9 +430,7 @@ EvalState::EvalState(const Strings & _searchPath, ref<Store> store)
}
}
- clearValue(vEmptySet);
- vEmptySet.type = tAttrs;
- vEmptySet.attrs = allocBindings(0);
+ vEmptySet.mkAttrs(allocBindings(0));
createBaseEnv();
}
@@ -550,16 +546,14 @@ Value * EvalState::addPrimOp(const string & name,
the primop to a dummy value. */
if (arity == 0) {
auto vPrimOp = allocValue();
- vPrimOp->type = tPrimOp;
- vPrimOp->primOp = new PrimOp { .fun = primOp, .arity = 1, .name = sym };
+ vPrimOp->mkPrimOp(new PrimOp { .fun = primOp, .arity = 1, .name = sym });
Value v;
mkApp(v, *vPrimOp, *vPrimOp);
return addConstant(name, v);
}
Value * v = allocValue();
- v->type = tPrimOp;
- v->primOp = new PrimOp { .fun = primOp, .arity = arity, .name = sym };
+ v->mkPrimOp(new PrimOp { .fun = primOp, .arity = arity, .name = sym });
staticBaseEnv.vars[symbols.create(name)] = baseEnvDispl;
baseEnv.values[baseEnvDispl++] = v;
baseEnv.values[0]->attrs->push_back(Attr(sym, v));
@@ -574,8 +568,7 @@ Value * EvalState::addPrimOp(PrimOp && primOp)
if (primOp.arity == 0) {
primOp.arity = 1;
auto vPrimOp = allocValue();
- vPrimOp->type = tPrimOp;
- vPrimOp->primOp = new PrimOp(std::move(primOp));
+ vPrimOp->mkPrimOp(new PrimOp(std::move(primOp)));
Value v;
mkApp(v, *vPrimOp, *vPrimOp);
return addConstant(primOp.name, v);
@@ -586,8 +579,7 @@ Value * EvalState::addPrimOp(PrimOp && primOp)
primOp.name = symbols.create(std::string(primOp.name, 2));
Value * v = allocValue();
- v->type = tPrimOp;
- v->primOp = new PrimOp(std::move(primOp));
+ v->mkPrimOp(new PrimOp(std::move(primOp)));
staticBaseEnv.vars[envName] = baseEnvDispl;
baseEnv.values[baseEnvDispl++] = v;
baseEnv.values[0]->attrs->push_back(Attr(primOp.name, v));
@@ -603,9 +595,9 @@ Value & EvalState::getBuiltin(const string & name)
std::optional<EvalState::Doc> EvalState::getDoc(Value & v)
{
- if (v.type == tPrimOp || v.type == tPrimOpApp) {
+ if (v.isPrimOp() || v.isPrimOpApp()) {
auto v2 = &v;
- while (v2->type == tPrimOpApp)
+ while (v2->isPrimOpApp())
v2 = v2->primOpApp.left;
if (v2->primOp->doc)
return Doc {
@@ -710,15 +702,13 @@ LocalNoInline(void addErrorTrace(Error & e, const Pos & pos, const char * s, con
void mkString(Value & v, const char * s)
{
- mkStringNoCopy(v, dupString(s));
+ v.mkString(dupString(s));
}
Value & mkString(Value & v, std::string_view s, const PathSet & context)
{
- v.type = tString;
- v.string.s = dupStringWithLen(s.data(), s.size());
- v.string.context = 0;
+ v.mkString(dupStringWithLen(s.data(), s.size()));
if (!context.empty()) {
size_t n = 0;
v.string.context = (const char * *)
@@ -733,7 +723,7 @@ Value & mkString(Value & v, std::string_view s, const PathSet & context)
void mkPath(Value & v, const char * s)
{
- mkPathNoCopy(v, dupString(s));
+ v.mkPath(dupString(s));
}
@@ -794,16 +784,9 @@ Env & EvalState::allocEnv(size_t size)
void EvalState::mkList(Value & v, size_t size)
{
- clearValue(v);
- if (size == 1)
- v.type = tList1;
- else if (size == 2)
- v.type = tList2;
- else {
- v.type = tListN;
- v.bigList.size = size;
- v.bigList.elems = size ? (Value * *) allocBytes(size * sizeof(Value *)) : 0;
- }
+ v.mkList(size);
+ if (size > 2)
+ v.bigList.elems = (Value * *) allocBytes(size * sizeof(Value *));
nrListElems += size;
}
@@ -812,9 +795,7 @@ unsigned long nrThunks = 0;
static inline void mkThunk(Value & v, Env & env, Expr * expr)
{
- v.type = tThunk;
- v.thunk.env = &env;
- v.thunk.expr = expr;
+ v.mkThunk(&env, expr);
nrThunks++;
}
@@ -949,7 +930,7 @@ inline bool EvalState::evalBool(Env & env, Expr * e)
{
Value v;
e->eval(*this, env, v);
- if (v.type != tBool)
+ if (v.type() != nBool)
throwTypeError("value is %1% while a Boolean was expected", v);
return v.boolean;
}
@@ -959,7 +940,7 @@ inline bool EvalState::evalBool(Env & env, Expr * e, const Pos & pos)
{
Value v;
e->eval(*this, env, v);
- if (v.type != tBool)
+ if (v.type() != nBool)
throwTypeError(pos, "value is %1% while a Boolean was expected", v);
return v.boolean;
}
@@ -968,7 +949,7 @@ inline bool EvalState::evalBool(Env & env, Expr * e, const Pos & pos)
inline void EvalState::evalAttrs(Env & env, Expr * e, Value & v)
{
e->eval(*this, env, v);
- if (v.type != tAttrs)
+ if (v.type() != nAttrs)
throwTypeError("value is %1% while a set was expected", v);
}
@@ -1068,7 +1049,7 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
Value nameVal;
i.nameExpr->eval(state, *dynamicEnv, nameVal);
state.forceValue(nameVal, i.pos);
- if (nameVal.type == tNull)
+ if (nameVal.type() == nNull)
continue;
state.forceStringNoCtx(nameVal);
Symbol nameSym = state.symbols.create(nameVal.string.s);
@@ -1153,7 +1134,7 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v)
Symbol name = getName(i, state, env);
if (def) {
state.forceValue(*vAttrs, pos);
- if (vAttrs->type != tAttrs ||
+ if (vAttrs->type() != nAttrs ||
(j = vAttrs->attrs->find(name)) == vAttrs->attrs->end())
{
def->eval(state, env, v);
@@ -1193,7 +1174,7 @@ void ExprOpHasAttr::eval(EvalState & state, Env & env, Value & v)
state.forceValue(*vAttrs);
Bindings::iterator j;
Symbol name = getName(i, state, env);
- if (vAttrs->type != tAttrs ||
+ if (vAttrs->type() != nAttrs ||
(j = vAttrs->attrs->find(name)) == vAttrs->attrs->end())
{
mkBool(v, false);
@@ -1209,9 +1190,7 @@ void ExprOpHasAttr::eval(EvalState & state, Env & env, Value & v)
void ExprLambda::eval(EvalState & state, Env & env, Value & v)
{
- v.type = tLambda;
- v.lambda.env = &env;
- v.lambda.fun = this;
+ v.mkLambda(&env, this);
}
@@ -1229,11 +1208,11 @@ void EvalState::callPrimOp(Value & fun, Value & arg, Value & v, const Pos & pos)
/* Figure out the number of arguments still needed. */
size_t argsDone = 0;
Value * primOp = &fun;
- while (primOp->type == tPrimOpApp) {
+ while (primOp->isPrimOpApp()) {
argsDone++;
primOp = primOp->primOpApp.left;
}
- assert(primOp->type == tPrimOp);
+ assert(primOp->isPrimOp());
auto arity = primOp->primOp->arity;
auto argsLeft = arity - argsDone;
@@ -1244,7 +1223,7 @@ void EvalState::callPrimOp(Value & fun, Value & arg, Value & v, const Pos & pos)
Value * vArgs[arity];
auto n = arity - 1;
vArgs[n--] = &arg;
- for (Value * arg = &fun; arg->type == tPrimOpApp; arg = arg->primOpApp.left)
+ for (Value * arg = &fun; arg->isPrimOpApp(); arg = arg->primOpApp.left)
vArgs[n--] = arg->primOpApp.right;
/* And call the primop. */
@@ -1254,9 +1233,7 @@ void EvalState::callPrimOp(Value & fun, Value & arg, Value & v, const Pos & pos)
} else {
Value * fun2 = allocValue();
*fun2 = fun;
- v.type = tPrimOpApp;
- v.primOpApp.left = fun2;
- v.primOpApp.right = &arg;
+ v.mkPrimOpApp(fun2, &arg);
}
}
@@ -1266,12 +1243,12 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po
forceValue(fun, pos);
- if (fun.type == tPrimOp || fun.type == tPrimOpApp) {
+ if (fun.isPrimOp() || fun.isPrimOpApp()) {
callPrimOp(fun, arg, v, pos);
return;
}
- if (fun.type == tAttrs) {
+ if (fun.type() == nAttrs) {
auto found = fun.attrs->find(sFunctor);
if (found != fun.attrs->end()) {
/* fun may be allocated on the stack of the calling function,
@@ -1287,7 +1264,7 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po
}
}
- if (fun.type != tLambda)
+ if (!fun.isLambda())
throwTypeError(pos, "attempt to call something which is not a function but %1%", fun);
ExprLambda & lambda(*fun.lambda.fun);
@@ -1370,7 +1347,7 @@ void EvalState::autoCallFunction(Bindings & args, Value & fun, Value & res)
{
forceValue(fun);
- if (fun.type == tAttrs) {
+ if (fun.type() == nAttrs) {
auto found = fun.attrs->find(sFunctor);
if (found != fun.attrs->end()) {
Value * v = allocValue();
@@ -1380,7 +1357,7 @@ void EvalState::autoCallFunction(Bindings & args, Value & fun, Value & res)
}
}
- if (fun.type != tLambda || !fun.lambda.fun->matchAttrs) {
+ if (!fun.isLambda() || !fun.lambda.fun->matchAttrs) {
res = fun;
return;
}
@@ -1564,7 +1541,7 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
NixFloat nf = 0;
bool first = !forceString;
- ValueType firstType = tString;
+ ValueType firstType = nString;
for (auto & i : *es) {
Value vTmp;
@@ -1575,36 +1552,36 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
since paths are copied when they are used in a derivation),
and none of the strings are allowed to have contexts. */
if (first) {
- firstType = vTmp.type;
+ firstType = vTmp.type();
first = false;
}
- if (firstType == tInt) {
- if (vTmp.type == tInt) {
+ if (firstType == nInt) {
+ if (vTmp.type() == nInt) {
n += vTmp.integer;
- } else if (vTmp.type == tFloat) {
+ } else if (vTmp.type() == nFloat) {
// Upgrade the type from int to float;
- firstType = tFloat;
+ firstType = nFloat;
nf = n;
nf += vTmp.fpoint;
} else
throwEvalError(pos, "cannot add %1% to an integer", showType(vTmp));
- } else if (firstType == tFloat) {
- if (vTmp.type == tInt) {
+ } else if (firstType == nFloat) {
+ if (vTmp.type() == nInt) {
nf += vTmp.integer;
- } else if (vTmp.type == tFloat) {
+ } else if (vTmp.type() == nFloat) {
nf += vTmp.fpoint;
} else
throwEvalError(pos, "cannot add %1% to a float", showType(vTmp));
} else
- s << state.coerceToString(pos, vTmp, context, false, firstType == tString);
+ s << state.coerceToString(pos, vTmp, context, false, firstType == nString);
}
- if (firstType == tInt)
+ if (firstType == nInt)
mkInt(v, n);
- else if (firstType == tFloat)
+ else if (firstType == nFloat)
mkFloat(v, nf);
- else if (firstType == tPath) {
+ else if (firstType == nPath) {
if (!context.empty())
throwEvalError(pos, "a string that refers to a store path cannot be appended to a path");
auto path = canonPath(s.str());
@@ -1631,7 +1608,7 @@ void EvalState::forceValueDeep(Value & v)
forceValue(v);
- if (v.type == tAttrs) {
+ if (v.type() == nAttrs) {
for (auto & i : *v.attrs)
try {
recurse(*i.value);
@@ -1654,7 +1631,7 @@ void EvalState::forceValueDeep(Value & v)
NixInt EvalState::forceInt(Value & v, const Pos & pos)
{
forceValue(v, pos);
- if (v.type != tInt)
+ if (v.type() != nInt)
throwTypeError(pos, "value is %1% while an integer was expected", v);
return v.integer;
}
@@ -1663,9 +1640,9 @@ NixInt EvalState::forceInt(Value & v, const Pos & pos)
NixFloat EvalState::forceFloat(Value & v, const Pos & pos)
{
forceValue(v, pos);
- if (v.type == tInt)
+ if (v.type() == nInt)
return v.integer;
- else if (v.type != tFloat)
+ else if (v.type() != nFloat)
throwTypeError(pos, "value is %1% while a float was expected", v);
return v.fpoint;
}
@@ -1674,7 +1651,7 @@ NixFloat EvalState::forceFloat(Value & v, const Pos & pos)
bool EvalState::forceBool(Value & v, const Pos & pos)
{
forceValue(v, pos);
- if (v.type != tBool)
+ if (v.type() != nBool)
throwTypeError(pos, "value is %1% while a Boolean was expected", v);
return v.boolean;
}
@@ -1682,14 +1659,14 @@ bool EvalState::forceBool(Value & v, const Pos & pos)
bool EvalState::isFunctor(Value & fun)
{
- return fun.type == tAttrs && fun.attrs->find(sFunctor) != fun.attrs->end();
+ return fun.type() == nAttrs && fun.attrs->find(sFunctor) != fun.attrs->end();
}
void EvalState::forceFunction(Value & v, const Pos & pos)
{
forceValue(v, pos);
- if (v.type != tLambda && v.type != tPrimOp && v.type != tPrimOpApp && !isFunctor(v))
+ if (v.type() != nFunction && !isFunctor(v))
throwTypeError(pos, "value is %1% while a function was expected", v);
}
@@ -1697,7 +1674,7 @@ void EvalState::forceFunction(Value & v, const Pos & pos)
string EvalState::forceString(Value & v, const Pos & pos)
{
forceValue(v, pos);
- if (v.type != tString) {
+ if (v.type() != nString) {
if (pos)
throwTypeError(pos, "value is %1% while a string was expected", v);
else
@@ -1730,7 +1707,7 @@ void copyContext(const Value & v, PathSet & context)
std::vector<std::pair<Path, std::string>> Value::getContext()
{
std::vector<std::pair<Path, std::string>> res;
- assert(type == tString);
+ assert(internalType == tString);
if (string.context)
for (const char * * p = string.context; *p; ++p)
res.push_back(decodeContext(*p));
@@ -1763,11 +1740,11 @@ string EvalState::forceStringNoCtx(Value & v, const Pos & pos)
bool EvalState::isDerivation(Value & v)
{
- if (v.type != tAttrs) return false;
+ if (v.type() != nAttrs) return false;
Bindings::iterator i = v.attrs->find(sType);
if (i == v.attrs->end()) return false;
forceValue(*i->value);
- if (i->value->type != tString) return false;
+ if (i->value->type() != nString) return false;
return strcmp(i->value->string.s, "derivation") == 0;
}
@@ -1792,17 +1769,17 @@ string EvalState::coerceToString(const Pos & pos, Value & v, PathSet & context,
string s;
- if (v.type == tString) {
+ if (v.type() == nString) {
copyContext(v, context);
return v.string.s;
}
- if (v.type == tPath) {
+ if (v.type() == nPath) {
Path path(canonPath(v.path));
return copyToStore ? copyPathToStore(context, path) : path;
}
- if (v.type == tAttrs) {
+ if (v.type() == nAttrs) {
auto maybeString = tryAttrsToString(pos, v, context, coerceMore, copyToStore);
if (maybeString) {
return *maybeString;
@@ -1812,18 +1789,18 @@ string EvalState::coerceToString(const Pos & pos, Value & v, PathSet & context,
return coerceToString(pos, *i->value, context, coerceMore, copyToStore);
}
- if (v.type == tExternal)
+ if (v.type() == nExternal)
return v.external->coerceToString(pos, context, coerceMore, copyToStore);
if (coerceMore) {
/* Note that `false' is represented as an empty string for
shell scripting convenience, just like `null'. */
- if (v.type == tBool && v.boolean) return "1";
- if (v.type == tBool && !v.boolean) return "";
- if (v.type == tInt) return std::to_string(v.integer);
- if (v.type == tFloat) return std::to_string(v.fpoint);
- if (v.type == tNull) return "";
+ if (v.type() == nBool && v.boolean) return "1";
+ if (v.type() == nBool && !v.boolean) return "";
+ if (v.type() == nInt) return std::to_string(v.integer);
+ if (v.type() == nFloat) return std::to_string(v.fpoint);
+ if (v.type() == nNull) return "";
if (v.isList()) {
string result;
@@ -1886,40 +1863,38 @@ bool EvalState::eqValues(Value & v1, Value & v2)
if (&v1 == &v2) return true;
// Special case type-compatibility between float and int
- if (v1.type == tInt && v2.type == tFloat)
+ if (v1.type() == nInt && v2.type() == nFloat)
return v1.integer == v2.fpoint;
- if (v1.type == tFloat && v2.type == tInt)
+ if (v1.type() == nFloat && v2.type() == nInt)
return v1.fpoint == v2.integer;
// All other types are not compatible with each other.
- if (v1.type != v2.type) return false;
+ if (v1.type() != v2.type()) return false;
- switch (v1.type) {
+ switch (v1.type()) {
- case tInt:
+ case nInt:
return v1.integer == v2.integer;
- case tBool:
+ case nBool:
return v1.boolean == v2.boolean;
- case tString:
+ case nString:
return strcmp(v1.string.s, v2.string.s) == 0;
- case tPath:
+ case nPath:
return strcmp(v1.path, v2.path) == 0;
- case tNull:
+ case nNull:
return true;
- case tList1:
- case tList2:
- case tListN:
+ case nList:
if (v1.listSize() != v2.listSize()) return false;
for (size_t n = 0; n < v1.listSize(); ++n)
if (!eqValues(*v1.listElems()[n], *v2.listElems()[n])) return false;
return true;
- case tAttrs: {
+ case nAttrs: {
/* If both sets denote a derivation (type = "derivation"),
then compare their outPaths. */
if (isDerivation(v1) && isDerivation(v2)) {
@@ -1941,15 +1916,13 @@ bool EvalState::eqValues(Value & v1, Value & v2)
}
/* Functions are incomparable. */
- case tLambda:
- case tPrimOp:
- case tPrimOpApp:
+ case nFunction:
return false;
- case tExternal:
+ case nExternal:
return *v1.external == *v2.external;
- case tFloat:
+ case nFloat:
return v1.fpoint == v2.fpoint;
default:
diff --git a/src/libexpr/flake/flake.cc b/src/libexpr/flake/flake.cc
index 3e866e1f9..4f021570c 100644
--- a/src/libexpr/flake/flake.cc
+++ b/src/libexpr/flake/flake.cc
@@ -73,7 +73,7 @@ static std::tuple<fetchers::Tree, FlakeRef, FlakeRef> fetchOrSubstituteTree(
static void forceTrivialValue(EvalState & state, Value & value, const Pos & pos)
{
- if (value.type == tThunk && value.isTrivial())
+ if (value.isThunk() && value.isTrivial())
state.forceValue(value, pos);
}
@@ -82,9 +82,9 @@ static void expectType(EvalState & state, ValueType type,
Value & value, const Pos & pos)
{
forceTrivialValue(state, value, pos);
- if (value.type != type)
+ if (value.type() != type)
throw Error("expected %s but got %s at %s",
- showType(type), showType(value.type), pos);
+ showType(type), showType(value.type()), pos);
}
static std::map<FlakeId, FlakeInput> parseFlakeInputs(
@@ -93,7 +93,7 @@ static std::map<FlakeId, FlakeInput> parseFlakeInputs(
static FlakeInput parseFlakeInput(EvalState & state,
const std::string & inputName, Value * value, const Pos & pos)
{
- expectType(state, tAttrs, *value, pos);
+ expectType(state, nAttrs, *value, pos);
FlakeInput input;
@@ -108,19 +108,19 @@ static FlakeInput parseFlakeInput(EvalState & state,
for (nix::Attr attr : *(value->attrs)) {
try {
if (attr.name == sUrl) {
- expectType(state, tString, *attr.value, *attr.pos);
+ expectType(state, nString, *attr.value, *attr.pos);
url = attr.value->string.s;
attrs.emplace("url", *url);
} else if (attr.name == sFlake) {
- expectType(state, tBool, *attr.value, *attr.pos);
+ expectType(state, nBool, *attr.value, *attr.pos);
input.isFlake = attr.value->boolean;
} else if (attr.name == sInputs) {
input.overrides = parseFlakeInputs(state, attr.value, *attr.pos);
} else if (attr.name == sFollows) {
- expectType(state, tString, *attr.value, *attr.pos);
+ expectType(state, nString, *attr.value, *attr.pos);
input.follows = parseInputPath(attr.value->string.s);
} else {
- if (attr.value->type == tString)
+ if (attr.value->type() == nString)
attrs.emplace(attr.name, attr.value->string.s);
else
throw TypeError("flake input attribute '%s' is %s while a string is expected",
@@ -158,7 +158,7 @@ static std::map<FlakeId, FlakeInput> parseFlakeInputs(
{
std::map<FlakeId, FlakeInput> inputs;
- expectType(state, tAttrs, *value, pos);
+ expectType(state, nAttrs, *value, pos);
for (nix::Attr & inputAttr : *(*value).attrs) {
inputs.emplace(inputAttr.name,
@@ -199,10 +199,10 @@ static Flake getFlake(
Value vInfo;
state.evalFile(flakeFile, vInfo, true); // FIXME: symlink attack
- expectType(state, tAttrs, vInfo, Pos(foFile, state.symbols.create(flakeFile), 0, 0));
+ expectType(state, nAttrs, vInfo, Pos(foFile, state.symbols.create(flakeFile), 0, 0));
if (auto description = vInfo.attrs->get(state.sDescription)) {
- expectType(state, tString, *description->value, *description->pos);
+ expectType(state, nString, *description->value, *description->pos);
flake.description = description->value->string.s;
}
@@ -214,9 +214,9 @@ static Flake getFlake(
auto sOutputs = state.symbols.create("outputs");
if (auto outputs = vInfo.attrs->get(sOutputs)) {
- expectType(state, tLambda, *outputs->value, *outputs->pos);
+ expectType(state, nFunction, *outputs->value, *outputs->pos);
- if (outputs->value->lambda.fun->matchAttrs) {
+ if (outputs->value->isLambda() && outputs->value->lambda.fun->matchAttrs) {
for (auto & formal : outputs->value->lambda.fun->formals->formals) {
if (formal.name != state.sSelf)
flake.inputs.emplace(formal.name, FlakeInput {
@@ -231,21 +231,21 @@ static Flake getFlake(
auto sNixConfig = state.symbols.create("nixConfig");
if (auto nixConfig = vInfo.attrs->get(sNixConfig)) {
- expectType(state, tAttrs, *nixConfig->value, *nixConfig->pos);
+ expectType(state, nAttrs, *nixConfig->value, *nixConfig->pos);
for (auto & setting : *nixConfig->value->attrs) {
forceTrivialValue(state, *setting.value, *setting.pos);
- if (setting.value->type == tString)
+ if (setting.value->type() == nString)
flake.config.settings.insert({setting.name, state.forceStringNoCtx(*setting.value, *setting.pos)});
- else if (setting.value->type == tInt)
+ else if (setting.value->type() == nInt)
flake.config.settings.insert({setting.name, state.forceInt(*setting.value, *setting.pos)});
- else if (setting.value->type == tBool)
+ else if (setting.value->type() == nBool)
flake.config.settings.insert({setting.name, state.forceBool(*setting.value, *setting.pos)});
- else if (setting.value->isList()) {
+ else if (setting.value->type() == nList) {
std::vector<std::string> ss;
for (unsigned int n = 0; n < setting.value->listSize(); ++n) {
auto elem = setting.value->listElems()[n];
- if (elem->type != tString)
+ if (elem->type() != nString)
throw TypeError("list element in flake configuration setting '%s' is %s while a string is expected",
setting.name, showType(*setting.value));
ss.push_back(state.forceStringNoCtx(*elem, *setting.pos));
diff --git a/src/libexpr/get-drvs.cc b/src/libexpr/get-drvs.cc
index 91916e8bf..32c115c12 100644
--- a/src/libexpr/get-drvs.cc
+++ b/src/libexpr/get-drvs.cc
@@ -128,7 +128,7 @@ DrvInfo::Outputs DrvInfo::queryOutputs(bool onlyOutputsToInstall)
if (!outTI->isList()) throw errMsg;
Outputs result;
for (auto i = outTI->listElems(); i != outTI->listElems() + outTI->listSize(); ++i) {
- if ((*i)->type != tString) throw errMsg;
+ if ((*i)->type() != nString) throw errMsg;
auto out = outputs.find((*i)->string.s);
if (out == outputs.end()) throw errMsg;
result.insert(*out);
@@ -172,20 +172,20 @@ StringSet DrvInfo::queryMetaNames()
bool DrvInfo::checkMeta(Value & v)
{
state->forceValue(v);
- if (v.isList()) {
+ if (v.type() == nList) {
for (unsigned int n = 0; n < v.listSize(); ++n)
if (!checkMeta(*v.listElems()[n])) return false;
return true;
}
- else if (v.type == tAttrs) {
+ else if (v.type() == nAttrs) {
Bindings::iterator i = v.attrs->find(state->sOutPath);
if (i != v.attrs->end()) return false;
for (auto & i : *v.attrs)
if (!checkMeta(*i.value)) return false;
return true;
}
- else return v.type == tInt || v.type == tBool || v.type == tString ||
- v.type == tFloat;
+ else return v.type() == nInt || v.type() == nBool || v.type() == nString ||
+ v.type() == nFloat;
}
@@ -201,7 +201,7 @@ Value * DrvInfo::queryMeta(const string & name)
string DrvInfo::queryMetaString(const string & name)
{
Value * v = queryMeta(name);
- if (!v || v->type != tString) return "";
+ if (!v || v->type() != nString) return "";
return v->string.s;
}
@@ -210,8 +210,8 @@ NixInt DrvInfo::queryMetaInt(const string & name, NixInt def)
{
Value * v = queryMeta(name);
if (!v) return def;
- if (v->type == tInt) return v->integer;
- if (v->type == tString) {
+ if (v->type() == nInt) return v->integer;
+ if (v->type() == nString) {
/* Backwards compatibility with before we had support for
integer meta fields. */
NixInt n;
@@ -224,8 +224,8 @@ NixFloat DrvInfo::queryMetaFloat(const string & name, NixFloat def)
{
Value * v = queryMeta(name);
if (!v) return def;
- if (v->type == tFloat) return v->fpoint;
- if (v->type == tString) {
+ if (v->type() == nFloat) return v->fpoint;
+ if (v->type() == nString) {
/* Backwards compatibility with before we had support for
float meta fields. */
NixFloat n;
@@ -239,8 +239,8 @@ bool DrvInfo::queryMetaBool(const string & name, bool def)
{
Value * v = queryMeta(name);
if (!v) return def;
- if (v->type == tBool) return v->boolean;
- if (v->type == tString) {
+ if (v->type() == nBool) return v->boolean;
+ if (v->type() == nString) {
/* Backwards compatibility with before we had support for
Boolean meta fields. */
if (strcmp(v->string.s, "true") == 0) return true;
@@ -331,7 +331,7 @@ static void getDerivations(EvalState & state, Value & vIn,
/* Process the expression. */
if (!getDerivation(state, v, pathPrefix, drvs, done, ignoreAssertionFailures)) ;
- else if (v.type == tAttrs) {
+ else if (v.type() == nAttrs) {
/* !!! undocumented hackery to support combining channels in
nix-env.cc. */
@@ -353,7 +353,7 @@ static void getDerivations(EvalState & state, Value & vIn,
/* If the value of this attribute is itself a set,
should we recurse into it? => Only if it has a
`recurseForDerivations = true' attribute. */
- if (i->value->type == tAttrs) {
+ if (i->value->type() == nAttrs) {
Bindings::iterator j = i->value->attrs->find(state.sRecurseForDerivations);
if (j != i->value->attrs->end() && state.forceBool(*j->value, *j->pos))
getDerivations(state, *i->value, pathPrefix2, autoArgs, drvs, done, ignoreAssertionFailures);
@@ -362,7 +362,7 @@ static void getDerivations(EvalState & state, Value & vIn,
}
}
- else if (v.isList()) {
+ else if (v.type() == nList) {
for (unsigned int n = 0; n < v.listSize(); ++n) {
string pathPrefix2 = addToPath(pathPrefix, (format("%1%") % n).str());
if (getDerivation(state, *v.listElems()[n], pathPrefix2, drvs, done, ignoreAssertionFailures))
diff --git a/src/libexpr/nixexpr.hh b/src/libexpr/nixexpr.hh
index e4cbc660f..b80a7de4e 100644
--- a/src/libexpr/nixexpr.hh
+++ b/src/libexpr/nixexpr.hh
@@ -129,7 +129,7 @@ struct ExprPath : Expr
{
string s;
Value v;
- ExprPath(const string & s) : s(s) { mkPathNoCopy(v, this->s.c_str()); };
+ ExprPath(const string & s) : s(s) { v.mkPath(this->s.c_str()); };
COMMON_METHODS
Value * maybeThunk(EvalState & state, Env & env);
};
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index e9c1f3b43..18438f681 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -356,24 +356,20 @@ static void prim_typeOf(EvalState & state, const Pos & pos, Value * * args, Valu
{
state.forceValue(*args[0], pos);
string t;
- switch (args[0]->type) {
- case tInt: t = "int"; break;
- case tBool: t = "bool"; break;
- case tString: t = "string"; break;
- case tPath: t = "path"; break;
- case tNull: t = "null"; break;
- case tAttrs: t = "set"; break;
- case tList1: case tList2: case tListN: t = "list"; break;
- case tLambda:
- case tPrimOp:
- case tPrimOpApp:
- t = "lambda";
- break;
- case tExternal:
+ switch (args[0]->type()) {
+ case nInt: t = "int"; break;
+ case nBool: t = "bool"; break;
+ case nString: t = "string"; break;
+ case nPath: t = "path"; break;
+ case nNull: t = "null"; break;
+ case nAttrs: t = "set"; break;
+ case nList: t = "list"; break;
+ case nFunction: t = "lambda"; break;
+ case nExternal:
t = args[0]->external->typeOf();
break;
- case tFloat: t = "float"; break;
- default: abort();
+ case nFloat: t = "float"; break;
+ case nThunk: abort();
}
mkString(v, state.symbols.create(t));
}
@@ -393,7 +389,7 @@ static RegisterPrimOp primop_typeOf({
static void prim_isNull(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
state.forceValue(*args[0], pos);
- mkBool(v, args[0]->type == tNull);
+ mkBool(v, args[0]->type() == nNull);
}
static RegisterPrimOp primop_isNull({
@@ -413,18 +409,7 @@ static RegisterPrimOp primop_isNull({
static void prim_isFunction(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
state.forceValue(*args[0], pos);
- bool res;
- switch (args[0]->type) {
- case tLambda:
- case tPrimOp:
- case tPrimOpApp:
- res = true;
- break;
- default:
- res = false;
- break;
- }
- mkBool(v, res);
+ mkBool(v, args[0]->type() == nFunction);
}
static RegisterPrimOp primop_isFunction({
@@ -440,7 +425,7 @@ static RegisterPrimOp primop_isFunction({
static void prim_isInt(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
state.forceValue(*args[0], pos);
- mkBool(v, args[0]->type == tInt);
+ mkBool(v, args[0]->type() == nInt);
}
static RegisterPrimOp primop_isInt({
@@ -456,7 +441,7 @@ static RegisterPrimOp primop_isInt({
static void prim_isFloat(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
state.forceValue(*args[0], pos);
- mkBool(v, args[0]->type == tFloat);
+ mkBool(v, args[0]->type() == nFloat);
}
static RegisterPrimOp primop_isFloat({
@@ -472,7 +457,7 @@ static RegisterPrimOp primop_isFloat({
static void prim_isString(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
state.forceValue(*args[0], pos);
- mkBool(v, args[0]->type == tString);
+ mkBool(v, args[0]->type() == nString);
}
static RegisterPrimOp primop_isString({
@@ -488,7 +473,7 @@ static RegisterPrimOp primop_isString({
static void prim_isBool(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
state.forceValue(*args[0], pos);
- mkBool(v, args[0]->type == tBool);
+ mkBool(v, args[0]->type() == nBool);
}
static RegisterPrimOp primop_isBool({
@@ -504,7 +489,7 @@ static RegisterPrimOp primop_isBool({
static void prim_isPath(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
state.forceValue(*args[0], pos);
- mkBool(v, args[0]->type == tPath);
+ mkBool(v, args[0]->type() == nPath);
}
static RegisterPrimOp primop_isPath({
@@ -520,20 +505,20 @@ struct CompareValues
{
bool operator () (const Value * v1, const Value * v2) const
{
- if (v1->type == tFloat && v2->type == tInt)
+ if (v1->type() == nFloat && v2->type() == nInt)
return v1->fpoint < v2->integer;
- if (v1->type == tInt && v2->type == tFloat)
+ if (v1->type() == nInt && v2->type() == nFloat)
return v1->integer < v2->fpoint;
- if (v1->type != v2->type)
+ if (v1->type() != v2->type())
throw EvalError("cannot compare %1% with %2%", showType(*v1), showType(*v2));
- switch (v1->type) {
- case tInt:
+ switch (v1->type()) {
+ case nInt:
return v1->integer < v2->integer;
- case tFloat:
+ case nFloat:
return v1->fpoint < v2->fpoint;
- case tString:
+ case nString:
return strcmp(v1->string.s, v2->string.s) < 0;
- case tPath:
+ case nPath:
return strcmp(v1->path, v2->path) < 0;
default:
throw EvalError("cannot compare %1% with %2%", showType(*v1), showType(*v2));
@@ -777,7 +762,7 @@ static RegisterPrimOp primop_deepSeq({
static void prim_trace(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
state.forceValue(*args[0], pos);
- if (args[0]->type == tString)
+ if (args[0]->type() == nString)
printError("trace: %1%", args[0]->string.s);
else
printError("trace: %1%", *args[0]);
@@ -902,7 +887,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (ignoreNulls) {
state.forceValue(*i->value, pos);
- if (i->value->type == tNull) continue;
+ if (i->value->type() == nNull) continue;
}
if (i->name == state.sContentAddressed) {
@@ -1308,7 +1293,7 @@ static void prim_dirOf(EvalState & state, const Pos & pos, Value * * args, Value
{
PathSet context;
Path dir = dirOf(state.coerceToString(pos, *args[0], context, false, false));
- if (args[0]->type == tPath) mkPath(v, dir.c_str()); else mkString(v, dir, context);
+ if (args[0]->type() == nPath) mkPath(v, dir.c_str()); else mkString(v, dir, context);
}
static RegisterPrimOp primop_dirOf({
@@ -1449,7 +1434,7 @@ static void prim_readDir(EvalState & state, const Pos & pos, Value * * args, Val
Value * ent_val = state.allocAttr(v, state.symbols.create(ent.name));
if (ent.type == DT_UNKNOWN)
ent.type = getFileType(path + "/" + ent.name);
- mkStringNoCopy(*ent_val,
+ ent_val->mkString(
ent.type == DT_REG ? "regular" :
ent.type == DT_DIR ? "directory" :
ent.type == DT_LNK ? "symlink" :
@@ -1813,7 +1798,7 @@ static void prim_filterSource(EvalState & state, const Pos & pos, Value * * args
});
state.forceValue(*args[0], pos);
- if (args[0]->type != tLambda)
+ if (args[0]->type() != nFunction)
throw TypeError({
.hint = hintfmt(
"first argument in call to 'filterSource' is not a function but %1%",
@@ -2079,7 +2064,7 @@ static RegisterPrimOp primop_hasAttr({
static void prim_isAttrs(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
state.forceValue(*args[0], pos);
- mkBool(v, args[0]->type == tAttrs);
+ mkBool(v, args[0]->type() == nAttrs);
}
static RegisterPrimOp primop_isAttrs({
@@ -2259,11 +2244,11 @@ static RegisterPrimOp primop_catAttrs({
static void prim_functionArgs(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
state.forceValue(*args[0], pos);
- if (args[0]->type == tPrimOpApp || args[0]->type == tPrimOp) {
+ if (args[0]->isPrimOpApp() || args[0]->isPrimOp()) {
state.mkAttrs(v, 0);
return;
}
- if (args[0]->type != tLambda)
+ if (!args[0]->isLambda())
throw TypeError({
.hint = hintfmt("'functionArgs' requires a function"),
.errPos = pos
@@ -2342,7 +2327,7 @@ static RegisterPrimOp primop_mapAttrs({
static void prim_isList(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
state.forceValue(*args[0], pos);
- mkBool(v, args[0]->isList());
+ mkBool(v, args[0]->type() == nList);
}
static RegisterPrimOp primop_isList({
@@ -2694,7 +2679,7 @@ static void prim_sort(EvalState & state, const Pos & pos, Value * * args, Value
auto comparator = [&](Value * a, Value * b) {
/* Optimization: if the comparator is lessThan, bypass
callFunction. */
- if (args[0]->type == tPrimOp && args[0]->primOp->fun == prim_lessThan)
+ if (args[0]->isPrimOp() && args[0]->primOp->fun == prim_lessThan)
return CompareValues()(a, b);
Value vTmp1, vTmp2;
@@ -2836,7 +2821,7 @@ static void prim_add(EvalState & state, const Pos & pos, Value * * args, Value &
{
state.forceValue(*args[0], pos);
state.forceValue(*args[1], pos);
- if (args[0]->type == tFloat || args[1]->type == tFloat)
+ if (args[0]->type() == nFloat || args[1]->type() == nFloat)
mkFloat(v, state.forceFloat(*args[0], pos) + state.forceFloat(*args[1], pos));
else
mkInt(v, state.forceInt(*args[0], pos) + state.forceInt(*args[1], pos));
@@ -2855,7 +2840,7 @@ static void prim_sub(EvalState & state, const Pos & pos, Value * * args, Value &
{
state.forceValue(*args[0], pos);
state.forceValue(*args[1], pos);
- if (args[0]->type == tFloat || args[1]->type == tFloat)
+ if (args[0]->type() == nFloat || args[1]->type() == nFloat)
mkFloat(v, state.forceFloat(*args[0], pos) - state.forceFloat(*args[1], pos));
else
mkInt(v, state.forceInt(*args[0], pos) - state.forceInt(*args[1], pos));
@@ -2874,7 +2859,7 @@ static void prim_mul(EvalState & state, const Pos & pos, Value * * args, Value &
{
state.forceValue(*args[0], pos);
state.forceValue(*args[1], pos);
- if (args[0]->type == tFloat || args[1]->type == tFloat)
+ if (args[0]->type() == nFloat || args[1]->type() == nFloat)
mkFloat(v, state.forceFloat(*args[0], pos) * state.forceFloat(*args[1], pos));
else
mkInt(v, state.forceInt(*args[0], pos) * state.forceInt(*args[1], pos));
@@ -2901,7 +2886,7 @@ static void prim_div(EvalState & state, const Pos & pos, Value * * args, Value &
.errPos = pos
});
- if (args[0]->type == tFloat || args[1]->type == tFloat) {
+ if (args[0]->type() == nFloat || args[1]->type() == nFloat) {
mkFloat(v, state.forceFloat(*args[0], pos) / state.forceFloat(*args[1], pos));
} else {
NixInt i1 = state.forceInt(*args[0], pos);
diff --git a/src/libexpr/primops/fetchMercurial.cc b/src/libexpr/primops/fetchMercurial.cc
index a77035c16..845a1ed1b 100644
--- a/src/libexpr/primops/fetchMercurial.cc
+++ b/src/libexpr/primops/fetchMercurial.cc
@@ -17,7 +17,7 @@ static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * ar
state.forceValue(*args[0]);
- if (args[0]->type == tAttrs) {
+ if (args[0]->type() == nAttrs) {
state.forceAttrs(*args[0], pos);
diff --git a/src/libexpr/primops/fetchTree.cc b/src/libexpr/primops/fetchTree.cc
index d094edf92..6e7ddde8e 100644
--- a/src/libexpr/primops/fetchTree.cc
+++ b/src/libexpr/primops/fetchTree.cc
@@ -85,25 +85,25 @@ static void fetchTree(
state.forceValue(*args[0]);
- if (args[0]->type == tAttrs) {
+ if (args[0]->type() == nAttrs) {
state.forceAttrs(*args[0], pos);
fetchers::Attrs attrs;
for (auto & attr : *args[0]->attrs) {
state.forceValue(*attr.value);
- if (attr.value->type == tPath || attr.value->type == tString)
+ if (attr.value->type() == nPath || attr.value->type() == nString)
addURI(
state,
attrs,
attr.name,
state.coerceToString(*attr.pos, *attr.value, context, false, false)
);
- else if (attr.value->type == tString)
+ else if (attr.value->type() == nString)
addURI(state, attrs, attr.name, attr.value->string.s);
- else if (attr.value->type == tBool)
+ else if (attr.value->type() == nBool)
attrs.emplace(attr.name, Explicit<bool>{attr.value->boolean});
- else if (attr.value->type == tInt)
+ else if (attr.value->type() == nInt)
attrs.emplace(attr.name, attr.value->integer);
else
throw TypeError("fetchTree argument '%s' is %s while a string, Boolean or integer is expected",
@@ -163,7 +163,7 @@ static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
state.forceValue(*args[0]);
- if (args[0]->type == tAttrs) {
+ if (args[0]->type() == nAttrs) {
state.forceAttrs(*args[0], pos);
diff --git a/src/libexpr/value-to-json.cc b/src/libexpr/value-to-json.cc
index 6ec8315ba..bfea24d40 100644
--- a/src/libexpr/value-to-json.cc
+++ b/src/libexpr/value-to-json.cc
@@ -16,30 +16,30 @@ void printValueAsJSON(EvalState & state, bool strict,
if (strict) state.forceValue(v);
- switch (v.type) {
+ switch (v.type()) {
- case tInt:
+ case nInt:
out.write(v.integer);
break;
- case tBool:
+ case nBool:
out.write(v.boolean);
break;
- case tString:
+ case nString:
copyContext(v, context);
out.write(v.string.s);
break;
- case tPath:
+ case nPath:
out.write(state.copyPathToStore(context, v.path));
break;
- case tNull:
+ case nNull:
out.write(nullptr);
break;
- case tAttrs: {
+ case nAttrs: {
auto maybeString = state.tryAttrsToString(noPos, v, context, false, false);
if (maybeString) {
out.write(*maybeString);
@@ -61,7 +61,7 @@ void printValueAsJSON(EvalState & state, bool strict,
break;
}
- case tList1: case tList2: case tListN: {
+ case nList: {
auto list(out.list());
for (unsigned int n = 0; n < v.listSize(); ++n) {
auto placeholder(list.placeholder());
@@ -70,15 +70,18 @@ void printValueAsJSON(EvalState & state, bool strict,
break;
}
- case tExternal:
+ case nExternal:
v.external->printValueAsJSON(state, strict, out, context);
break;
- case tFloat:
+ case nFloat:
out.write(v.fpoint);
break;
- default:
+ case nThunk:
+ throw TypeError("cannot convert %1% to JSON", showType(v));
+
+ case nFunction:
throw TypeError("cannot convert %1% to JSON", showType(v));
}
}
diff --git a/src/libexpr/value-to-xml.cc b/src/libexpr/value-to-xml.cc
index 1f0b1541d..7464455d8 100644
--- a/src/libexpr/value-to-xml.cc
+++ b/src/libexpr/value-to-xml.cc
@@ -58,31 +58,31 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
if (strict) state.forceValue(v);
- switch (v.type) {
+ switch (v.type()) {
- case tInt:
+ case nInt:
doc.writeEmptyElement("int", singletonAttrs("value", (format("%1%") % v.integer).str()));
break;
- case tBool:
+ case nBool:
doc.writeEmptyElement("bool", singletonAttrs("value", v.boolean ? "true" : "false"));
break;
- case tString:
+ case nString:
/* !!! show the context? */
copyContext(v, context);
doc.writeEmptyElement("string", singletonAttrs("value", v.string.s));
break;
- case tPath:
+ case nPath:
doc.writeEmptyElement("path", singletonAttrs("value", v.path));
break;
- case tNull:
+ case nNull:
doc.writeEmptyElement("null");
break;
- case tAttrs:
+ case nAttrs:
if (state.isDerivation(v)) {
XMLAttrs xmlAttrs;
@@ -92,14 +92,14 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
a = v.attrs->find(state.sDrvPath);
if (a != v.attrs->end()) {
if (strict) state.forceValue(*a->value);
- if (a->value->type == tString)
+ if (a->value->type() == nString)
xmlAttrs["drvPath"] = drvPath = a->value->string.s;
}
a = v.attrs->find(state.sOutPath);
if (a != v.attrs->end()) {
if (strict) state.forceValue(*a->value);
- if (a->value->type == tString)
+ if (a->value->type() == nString)
xmlAttrs["outPath"] = a->value->string.s;
}
@@ -118,14 +118,19 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
break;
- case tList1: case tList2: case tListN: {
+ case nList: {
XMLOpenElement _(doc, "list");
for (unsigned int n = 0; n < v.listSize(); ++n)
printValueAsXML(state, strict, location, *v.listElems()[n], doc, context, drvsSeen);
break;
}
- case tLambda: {
+ case nFunction: {
+ if (!v.isLambda()) {
+ // FIXME: Serialize primops and primopapps
+ doc.writeEmptyElement("unevaluated");
+ break;
+ }
XMLAttrs xmlAttrs;
if (location) posToXML(xmlAttrs, v.lambda.fun->pos);
XMLOpenElement _(doc, "function", xmlAttrs);
@@ -143,15 +148,15 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
break;
}
- case tExternal:
+ case nExternal:
v.external->printValueAsXML(state, strict, location, doc, context, drvsSeen);
break;
- case tFloat:
+ case nFloat:
doc.writeEmptyElement("float", singletonAttrs("value", (format("%1%") % v.fpoint).str()));
break;
- default:
+ case nThunk:
doc.writeEmptyElement("unevaluated");
}
}
diff --git a/src/libexpr/value.hh b/src/libexpr/value.hh
index fe11bb2ed..b317c1898 100644
--- a/src/libexpr/value.hh
+++ b/src/libexpr/value.hh
@@ -27,8 +27,24 @@ typedef enum {
tPrimOpApp,
tExternal,
tFloat
-} ValueType;
+} InternalType;
+// This type abstracts over all actual value types in the language,
+// grouping together implementation details like tList*, different function
+// types, and types in non-normal form (so thunks and co.)
+typedef enum {
+ nThunk,
+ nInt,
+ nFloat,
+ nBool,
+ nString,
+ nPath,
+ nNull,
+ nAttrs,
+ nList,
+ nFunction,
+ nExternal
+} ValueType;
class Bindings;
struct Env;
@@ -90,7 +106,28 @@ std::ostream & operator << (std::ostream & str, const ExternalValueBase & v);
struct Value
{
- ValueType type;
+private:
+ InternalType internalType;
+
+friend std::string showType(const Value & v);
+friend void printValue(std::ostream & str, std::set<const Value *> & active, const Value & v);
+
+public:
+
+ // Functions needed to distinguish the type
+ // These should be removed eventually, by putting the functionality that's
+ // needed by callers into methods of this type
+
+ // type() == nThunk
+ inline bool isThunk() const { return internalType == tThunk; };
+ inline bool isApp() const { return internalType == tApp; };
+ inline bool isBlackhole() const { return internalType == tBlackhole; };
+
+ // type() == nFunction
+ inline bool isLambda() const { return internalType == tLambda; };
+ inline bool isPrimOp() const { return internalType == tPrimOp; };
+ inline bool isPrimOpApp() const { return internalType == tPrimOpApp; };
+
union
{
NixInt integer;
@@ -147,24 +184,161 @@ struct Value
NixFloat fpoint;
};
+ // Returns the normal type of a Value. This only returns nThunk if the
+ // Value hasn't been forceValue'd
+ inline ValueType type() const
+ {
+ switch (internalType) {
+ case tInt: return nInt;
+ case tBool: return nBool;
+ case tString: return nString;
+ case tPath: return nPath;
+ case tNull: return nNull;
+ case tAttrs: return nAttrs;
+ case tList1: case tList2: case tListN: return nList;
+ case tLambda: case tPrimOp: case tPrimOpApp: return nFunction;
+ case tExternal: return nExternal;
+ case tFloat: return nFloat;
+ case tThunk: case tApp: case tBlackhole: return nThunk;
+ }
+ abort();
+ }
+
+ /* After overwriting an app node, be sure to clear pointers in the
+ Value to ensure that the target isn't kept alive unnecessarily. */
+ inline void clearValue()
+ {
+ app.left = app.right = 0;
+ }
+
+ inline void mkInt(NixInt n)
+ {
+ clearValue();
+ internalType = tInt;
+ integer = n;
+ }
+
+ inline void mkBool(bool b)
+ {
+ clearValue();
+ internalType = tBool;
+ boolean = b;
+ }
+
+ inline void mkString(const char * s, const char * * context = 0)
+ {
+ internalType = tString;
+ string.s = s;
+ string.context = context;
+ }
+
+ inline void mkPath(const char * s)
+ {
+ clearValue();
+ internalType = tPath;
+ path = s;
+ }
+
+ inline void mkNull()
+ {
+ clearValue();
+ internalType = tNull;
+ }
+
+ inline void mkAttrs(Bindings * a)
+ {
+ clearValue();
+ internalType = tAttrs;
+ attrs = a;
+ }
+
+ inline void mkList(size_t size)
+ {
+ clearValue();
+ if (size == 1)
+ internalType = tList1;
+ else if (size == 2)
+ internalType = tList2;
+ else {
+ internalType = tListN;
+ bigList.size = size;
+ }
+ }
+
+ inline void mkThunk(Env * e, Expr * ex)
+ {
+ internalType = tThunk;
+ thunk.env = e;
+ thunk.expr = ex;
+ }
+
+ inline void mkApp(Value * l, Value * r)
+ {
+ internalType = tApp;
+ app.left = l;
+ app.right = r;
+ }
+
+ inline void mkLambda(Env * e, ExprLambda * f)
+ {
+ internalType = tLambda;
+ lambda.env = e;
+ lambda.fun = f;
+ }
+
+ inline void mkBlackhole()
+ {
+ internalType = tBlackhole;
+ // Value will be overridden anyways
+ }
+
+ inline void mkPrimOp(PrimOp * p)
+ {
+ clearValue();
+ internalType = tPrimOp;
+ primOp = p;
+ }
+
+
+ inline void mkPrimOpApp(Value * l, Value * r)
+ {
+ internalType = tPrimOpApp;
+ app.left = l;
+ app.right = r;
+ }
+
+ inline void mkExternal(ExternalValueBase * e)
+ {
+ clearValue();
+ internalType = tExternal;
+ external = e;
+ }
+
+ inline void mkFloat(NixFloat n)
+ {
+ clearValue();
+ internalType = tFloat;
+ fpoint = n;
+ }
+
bool isList() const
{
- return type == tList1 || type == tList2 || type == tListN;
+ return internalType == tList1 || internalType == tList2 || internalType == tListN;
}
Value * * listElems()
{
- return type == tList1 || type == tList2 ? smallList : bigList.elems;
+ return internalType == tList1 || internalType == tList2 ? smallList : bigList.elems;
}
const Value * const * listElems() const
{
- return type == tList1 || type == tList2 ? smallList : bigList.elems;
+ return internalType == tList1 || internalType == tList2 ? smallList : bigList.elems;
}
size_t listSize() const
{
- return type == tList1 ? 1 : type == tList2 ? 2 : bigList.size;
+ return internalType == tList1 ? 1 : internalType == tList2 ? 2 : bigList.size;
}
/* Check whether forcing this value requires a trivial amount of
@@ -176,86 +350,42 @@ struct Value
};
-/* After overwriting an app node, be sure to clear pointers in the
- Value to ensure that the target isn't kept alive unnecessarily. */
-static inline void clearValue(Value & v)
-{
- v.app.left = v.app.right = 0;
-}
-
+// TODO: Remove these static functions, replace call sites with v.mk* instead
static inline void mkInt(Value & v, NixInt n)
{
- clearValue(v);
- v.type = tInt;
- v.integer = n;
+ v.mkInt(n);
}
-
static inline void mkFloat(Value & v, NixFloat n)
{
- clearValue(v);
- v.type = tFloat;
- v.fpoint = n;
+ v.mkFloat(n);
}
-
static inline void mkBool(Value & v, bool b)
{
- clearValue(v);
- v.type = tBool;
- v.boolean = b;
+ v.mkBool(b);
}
-
static inline void mkNull(Value & v)
{
- clearValue(v);
- v.type = tNull;
+ v.mkNull();
}
-
static inline void mkApp(Value & v, Value & left, Value & right)
{
- v.type = tApp;
- v.app.left = &left;
- v.app.right = &right;
-}
-
-
-static inline void mkPrimOpApp(Value & v, Value & left, Value & right)
-{
- v.type = tPrimOpApp;
- v.app.left = &left;
- v.app.right = &right;
-}
-
-
-static inline void mkStringNoCopy(Value & v, const char * s)
-{
- v.type = tString;
- v.string.s = s;
- v.string.context = 0;
+ v.mkApp(&left, &right);
}
-
static inline void mkString(Value & v, const Symbol & s)
{
- mkStringNoCopy(v, ((const string &) s).c_str());
+ v.mkString(((const string &) s).c_str());
}
void mkString(Value & v, const char * s);
-static inline void mkPathNoCopy(Value & v, const char * s)
-{
- clearValue(v);
- v.type = tPath;
- v.path = s;
-}
-
-
void mkPath(Value & v, const char * s);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 18:14:12 +0000