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replace most Pos objects/ptrs with indexes into a position table

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Pos objects are somewhat wasteful as they duplicate the origin file name and
input type for each object. on files that produce more than one Pos when parsed
this a sizeable waste of memory (one pointer per Pos). the same goes for
ptr<Pos> on 64 bit machines: parsing enough source to require 8 bytes to locate
a position would need at least 8GB of input and 64GB of expression memory. it's
not likely that we'll hit that any time soon, so we can use a uint32_t index to
locate positions instead.
This commit is contained in:
pennae 2022-03-04 19:31:59 +01:00
parent 34b72775cf
commit 6526d1676b
36 changed files with 752 additions and 622 deletions
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4
src/libcmd/installables.cc
View file

@ -473,7 +473,7 @@ struct InstallableAttrPath : InstallableValue
std::string what() const override { return attrPath; } std::string what() const override { return attrPath; }
std::pair<Value *, Pos> toValue(EvalState & state) override std::pair<Value *, PosIdx> toValue(EvalState & state) override
{ {
auto [vRes, pos] = findAlongAttrPath(state, attrPath, *cmd.getAutoArgs(state), **v); auto [vRes, pos] = findAlongAttrPath(state, attrPath, *cmd.getAutoArgs(state), **v);
state.forceValue(*vRes, pos); state.forceValue(*vRes, pos);
@ -613,7 +613,7 @@ std::vector<InstallableValue::DerivationInfo> InstallableFlake::toDerivations()
return res; return res;
} }
std::pair<Value *, Pos> InstallableFlake::toValue(EvalState & state) std::pair<Value *, PosIdx> InstallableFlake::toValue(EvalState & state)
{ {
return {&getCursor(state)->forceValue(), noPos}; return {&getCursor(state)->forceValue(), noPos};
} }

4
src/libcmd/installables.hh
View file

@ -68,7 +68,7 @@ struct Installable
UnresolvedApp toApp(EvalState & state); UnresolvedApp toApp(EvalState & state);
virtual std::pair<Value *, Pos> toValue(EvalState & state) virtual std::pair<Value *, PosIdx> toValue(EvalState & state)
{ {
throw Error("argument '%s' cannot be evaluated", what()); throw Error("argument '%s' cannot be evaluated", what());
} }
@ -178,7 +178,7 @@ struct InstallableFlake : InstallableValue
std::vector<DerivationInfo> toDerivations() override; std::vector<DerivationInfo> toDerivations() override;
std::pair<Value *, Pos> toValue(EvalState & state) override; std::pair<Value *, PosIdx> toValue(EvalState & state) override;
/* Get a cursor to every attrpath in getActualAttrPaths() that /* Get a cursor to every attrpath in getActualAttrPaths() that
exists. */ exists. */

6
src/libexpr/attr-path.cc
View file

@ -41,13 +41,13 @@ std::vector<Symbol> parseAttrPath(EvalState & state, std::string_view s)
} }
std::pair<Value *, Pos> findAlongAttrPath(EvalState & state, const std::string & attrPath, std::pair<Value *, PosIdx> findAlongAttrPath(EvalState & state, const std::string & attrPath,
Bindings & autoArgs, Value & vIn) Bindings & autoArgs, Value & vIn)
{ {
Strings tokens = parseAttrPath(attrPath); Strings tokens = parseAttrPath(attrPath);
Value * v = &vIn; Value * v = &vIn;
Pos pos = noPos; PosIdx pos = noPos;
for (auto & attr : tokens) { for (auto & attr : tokens) {
@ -83,7 +83,7 @@ std::pair<Value *, Pos> findAlongAttrPath(EvalState & state, const std::string &
throw AttrPathNotFound(suggestions, "attribute '%1%' in selection path '%2%' not found", attr, attrPath); throw AttrPathNotFound(suggestions, "attribute '%1%' in selection path '%2%' not found", attr, attrPath);
} }
v = &*a->value; v = &*a->value;
pos = *a->pos; pos = a->pos;
} }
else { else {

2
src/libexpr/attr-path.hh
View file

@ -10,7 +10,7 @@ namespace nix {
MakeError(AttrPathNotFound, Error); MakeError(AttrPathNotFound, Error);
MakeError(NoPositionInfo, Error); MakeError(NoPositionInfo, Error);
std::pair<Value *, Pos> findAlongAttrPath( std::pair<Value *, PosIdx> findAlongAttrPath(
EvalState & state, EvalState & state,
const std::string & attrPath, const std::string & attrPath,
Bindings & autoArgs, Bindings & autoArgs,

4
src/libexpr/attr-set.cc
View file

@ -40,7 +40,7 @@ Value * EvalState::allocAttr(Value & vAttrs, std::string_view name)
} }
Value & BindingsBuilder::alloc(const Symbol & name, ptr<Pos> pos) Value & BindingsBuilder::alloc(const Symbol & name, PosIdx pos)
{ {
auto value = state.allocValue(); auto value = state.allocValue();
bindings->push_back(Attr(name, value, pos)); bindings->push_back(Attr(name, value, pos));
@ -48,7 +48,7 @@ Value & BindingsBuilder::alloc(const Symbol & name, ptr<Pos> pos)
} }
Value & BindingsBuilder::alloc(std::string_view name, ptr<Pos> pos) Value & BindingsBuilder::alloc(std::string_view name, PosIdx pos)
{ {
return alloc(state.symbols.create(name), pos); return alloc(state.symbols.create(name), pos);
} }

16
src/libexpr/attr-set.hh
View file

@ -17,10 +17,10 @@ struct Attr
{ {
Symbol name; Symbol name;
Value * value; Value * value;
ptr<Pos> pos; PosIdx pos;
Attr(Symbol name, Value * value, ptr<Pos> pos = ptr(&noPos)) Attr(Symbol name, Value * value, PosIdx pos = noPos)
: name(name), value(value), pos(pos) { }; : name(name), value(value), pos(pos) { };
Attr() : pos(&noPos) { }; Attr() { };
bool operator < (const Attr & a) const bool operator < (const Attr & a) const
{ {
return name < a.name; return name < a.name;
@ -35,13 +35,13 @@ class Bindings
{ {
public: public:
typedef uint32_t size_t; typedef uint32_t size_t;
ptr<Pos> pos; PosIdx pos;
private: private:
size_t size_, capacity_; size_t size_, capacity_;
Attr attrs[0]; Attr attrs[0];
Bindings(size_t capacity) : pos(&noPos), size_(0), capacity_(capacity) { } Bindings(size_t capacity) : size_(0), capacity_(capacity) { }
Bindings(const Bindings & bindings) = delete; Bindings(const Bindings & bindings) = delete;
public: public:
@ -118,7 +118,7 @@ public:
: bindings(bindings), state(state) : bindings(bindings), state(state)
{ } { }
void insert(Symbol name, Value * value, ptr<Pos> pos = ptr(&noPos)) void insert(Symbol name, Value * value, PosIdx pos = noPos)
{ {
insert(Attr(name, value, pos)); insert(Attr(name, value, pos));
} }
@ -133,9 +133,9 @@ public:
bindings->push_back(attr); bindings->push_back(attr);
} }
Value & alloc(const Symbol & name, ptr<Pos> pos = ptr(&noPos)); Value & alloc(const Symbol & name, PosIdx pos = noPos);
Value & alloc(std::string_view name, ptr<Pos> pos = ptr(&noPos)); Value & alloc(std::string_view name, PosIdx pos = noPos);
Bindings * finish() Bindings * finish()
{ {

6
src/libexpr/eval-inline.hh
View file

@ -80,7 +80,7 @@ Env & EvalState::allocEnv(size_t size)
[[gnu::always_inline]] [[gnu::always_inline]]
void EvalState::forceValue(Value & v, const Pos & pos) void EvalState::forceValue(Value & v, const PosIdx pos)
{ {
forceValue(v, [&]() { return pos; }); forceValue(v, [&]() { return pos; });
} }
@ -109,7 +109,7 @@ void EvalState::forceValue(Value & v, Callable getPos)
[[gnu::always_inline]] [[gnu::always_inline]]
inline void EvalState::forceAttrs(Value & v, const Pos & pos) inline void EvalState::forceAttrs(Value & v, const PosIdx pos)
{ {
forceAttrs(v, [&]() { return pos; }); forceAttrs(v, [&]() { return pos; });
} }
@ -126,7 +126,7 @@ inline void EvalState::forceAttrs(Value & v, Callable getPos)
[[gnu::always_inline]] [[gnu::always_inline]]
inline void EvalState::forceList(Value & v, const Pos & pos) inline void EvalState::forceList(Value & v, const PosIdx pos)
{ {
forceValue(v, pos); forceValue(v, pos);
if (!v.isList()) if (!v.isList())

157
src/libexpr/eval.cc
View file

@ -236,10 +236,10 @@ std::string showType(const Value & v)
} }
} }
Pos Value::determinePos(const Pos & pos) const PosIdx Value::determinePos(const PosIdx pos) const
{ {
switch (internalType) { switch (internalType) {
case tAttrs: return *attrs->pos; case tAttrs: return attrs->pos;
case tLambda: return lambda.fun->pos; case tLambda: return lambda.fun->pos;
case tApp: return app.left->determinePos(pos); case tApp: return app.left->determinePos(pos);
default: return pos; default: return pos;
@ -698,7 +698,7 @@ std::optional<EvalState::Doc> EvalState::getDoc(Value & v)
auto v2 = &v; auto v2 = &v;
if (v2->primOp->doc) if (v2->primOp->doc)
return Doc { return Doc {
.pos = noPos, .pos = {},
.name = v2->primOp->name, .name = v2->primOp->name,
.arity = v2->primOp->arity, .arity = v2->primOp->arity,
.args = v2->primOp->args, .args = v2->primOp->args,
@ -714,21 +714,20 @@ std::optional<EvalState::Doc> EvalState::getDoc(Value & v)
evaluator. So here are some helper functions for throwing evaluator. So here are some helper functions for throwing
exceptions. */ exceptions. */
void EvalState::throwEvalError(const Pos & pos, const char * s) const void EvalState::throwEvalError(const PosIdx pos, const char * s) const
{ {
throw EvalError({ throw EvalError({
.msg = hintfmt(s), .msg = hintfmt(s),
.errPos = pos .errPos = positions[pos]
}); });
} }
void EvalState::throwTypeError(const Pos & pos, const char * s, const Value & v) const void EvalState::throwTypeError(const PosIdx pos, const char * s, const Value & v) const
{ {
throw TypeError({ throw TypeError({
.msg = hintfmt(s, showType(v)), .msg = hintfmt(s, showType(v)),
.errPos = pos .errPos = positions[pos]
}); });
} }
void EvalState::throwEvalError(const char * s, const std::string & s2) const void EvalState::throwEvalError(const char * s, const std::string & s2) const
@ -736,21 +735,21 @@ void EvalState::throwEvalError(const char * s, const std::string & s2) const
throw EvalError(s, s2); throw EvalError(s, s2);
} }
void EvalState::throwEvalError(const Pos & pos, const Suggestions & suggestions, const char * s, void EvalState::throwEvalError(const PosIdx pos, const Suggestions & suggestions, const char * s,
const std::string & s2) const const std::string & s2) const
{ {
throw EvalError(ErrorInfo { throw EvalError(ErrorInfo {
.msg = hintfmt(s, s2), .msg = hintfmt(s, s2),
.errPos = pos, .errPos = positions[pos],
.suggestions = suggestions, .suggestions = suggestions,
}); });
} }
void EvalState::throwEvalError(const Pos & pos, const char * s, const std::string & s2) const void EvalState::throwEvalError(const PosIdx pos, const char * s, const std::string & s2) const
{ {
throw EvalError(ErrorInfo { throw EvalError(ErrorInfo {
.msg = hintfmt(s, s2), .msg = hintfmt(s, s2),
.errPos = pos .errPos = positions[pos]
}); });
} }
@ -759,47 +758,47 @@ void EvalState::throwEvalError(const char * s, const std::string & s2, const std
throw EvalError(s, s2, s3); throw EvalError(s, s2, s3);
} }
void EvalState::throwEvalError(const Pos & pos, const char * s, const std::string & s2, void EvalState::throwEvalError(const PosIdx pos, const char * s, const std::string & s2,
const std::string & s3) const const std::string & s3) const
{ {
throw EvalError({ throw EvalError({
.msg = hintfmt(s, s2, s3), .msg = hintfmt(s, s2, s3),
.errPos = pos .errPos = positions[pos]
}); });
} }
void EvalState::throwEvalError(const Pos & p1, const char * s, const Symbol & sym, const Pos & p2) const void EvalState::throwEvalError(const PosIdx p1, const char * s, const Symbol & sym, const PosIdx p2) const
{ {
// p1 is where the error occurred; p2 is a position mentioned in the message. // p1 is where the error occurred; p2 is a position mentioned in the message.
throw EvalError({ throw EvalError({
.msg = hintfmt(s, sym, p2), .msg = hintfmt(s, sym, positions[p2]),
.errPos = p1 .errPos = positions[p1]
}); });
} }
void EvalState::throwTypeError(const Pos & pos, const char * s) const void EvalState::throwTypeError(const PosIdx pos, const char * s) const
{ {
throw TypeError({ throw TypeError({
.msg = hintfmt(s), .msg = hintfmt(s),
.errPos = pos .errPos = positions[pos]
}); });
} }
void EvalState::throwTypeError(const Pos & pos, const char * s, const ExprLambda & fun, void EvalState::throwTypeError(const PosIdx pos, const char * s, const ExprLambda & fun,
const Symbol & s2) const const Symbol & s2) const
{ {
throw TypeError({ throw TypeError({
.msg = hintfmt(s, fun.showNamePos(), s2), .msg = hintfmt(s, fun.showNamePos(positions), s2),
.errPos = pos .errPos = positions[pos]
}); });
} }
void EvalState::throwTypeError(const Pos & pos, const Suggestions & suggestions, const char * s, void EvalState::throwTypeError(const PosIdx pos, const Suggestions & suggestions, const char * s,
const ExprLambda & fun, const Symbol & s2) const const ExprLambda & fun, const Symbol & s2) const
{ {
throw TypeError(ErrorInfo { throw TypeError(ErrorInfo {
.msg = hintfmt(s, fun.showNamePos(), s2), .msg = hintfmt(s, fun.showNamePos(positions), s2),
.errPos = pos, .errPos = positions[pos],
.suggestions = suggestions, .suggestions = suggestions,
}); });
} }
@ -810,27 +809,27 @@ void EvalState::throwTypeError(const char * s, const Value & v) const
throw TypeError(s, showType(v)); throw TypeError(s, showType(v));
} }
void EvalState::throwAssertionError(const Pos & pos, const char * s, const std::string & s1) const void EvalState::throwAssertionError(const PosIdx pos, const char * s, const std::string & s1) const
{ {
throw AssertionError({ throw AssertionError({
.msg = hintfmt(s, s1), .msg = hintfmt(s, s1),
.errPos = pos .errPos = positions[pos]
}); });
} }
void EvalState::throwUndefinedVarError(const Pos & pos, const char * s, const std::string & s1) const void EvalState::throwUndefinedVarError(const PosIdx pos, const char * s, const std::string & s1) const
{ {
throw UndefinedVarError({ throw UndefinedVarError({
.msg = hintfmt(s, s1), .msg = hintfmt(s, s1),
.errPos = pos .errPos = positions[pos]
}); });
} }
void EvalState::throwMissingArgumentError(const Pos & pos, const char * s, const std::string & s1) const void EvalState::throwMissingArgumentError(const PosIdx pos, const char * s, const std::string & s1) const
{ {
throw MissingArgumentError({ throw MissingArgumentError({
.msg = hintfmt(s, s1), .msg = hintfmt(s, s1),
.errPos = pos .errPos = positions[pos]
}); });
} }
@ -839,9 +838,9 @@ void EvalState::addErrorTrace(Error & e, const char * s, const std::string & s2)
e.addTrace(std::nullopt, s, s2); e.addTrace(std::nullopt, s, s2);
} }
void EvalState::addErrorTrace(Error & e, const Pos & pos, const char * s, const std::string & s2) const void EvalState::addErrorTrace(Error & e, const PosIdx pos, const char * s, const std::string & s2) const
{ {
e.addTrace(pos, s, s2); e.addTrace(positions[pos], s, s2);
} }
@ -898,7 +897,7 @@ inline Value * EvalState::lookupVar(Env * env, const ExprVar & var, bool noEval)
} }
Bindings::iterator j = env->values[0]->attrs->find(var.name); Bindings::iterator j = env->values[0]->attrs->find(var.name);
if (j != env->values[0]->attrs->end()) { if (j != env->values[0]->attrs->end()) {
if (countCalls) attrSelects[*j->pos]++; if (countCalls) attrSelects[j->pos]++;
return j->value; return j->value;
} }
if (!env->prevWith) if (!env->prevWith)
@ -932,13 +931,14 @@ void EvalState::mkThunk_(Value & v, Expr * expr)
} }
void EvalState::mkPos(Value & v, ptr<Pos> pos) void EvalState::mkPos(Value & v, PosIdx p)
{ {
if (pos->file.set()) { auto pos = positions[p];
if (pos.file.set()) {
auto attrs = buildBindings(3); auto attrs = buildBindings(3);
attrs.alloc(sFile).mkString(pos->file); attrs.alloc(sFile).mkString(pos.file);
attrs.alloc(sLine).mkInt(pos->line); attrs.alloc(sLine).mkInt(pos.line);
attrs.alloc(sColumn).mkInt(pos->column); attrs.alloc(sColumn).mkInt(pos.column);
v.mkAttrs(attrs); v.mkAttrs(attrs);
} else } else
v.mkNull(); v.mkNull();
@ -1071,7 +1071,7 @@ inline bool EvalState::evalBool(Env & env, Expr * e)
} }
inline bool EvalState::evalBool(Env & env, Expr * e, const Pos & pos) inline bool EvalState::evalBool(Env & env, Expr * e, const PosIdx pos)
{ {
Value v; Value v;
e->eval(*this, env, v); e->eval(*this, env, v);
@ -1145,7 +1145,7 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
} else } else
vAttr = i.second.e->maybeThunk(state, i.second.inherited ? env : env2); vAttr = i.second.e->maybeThunk(state, i.second.inherited ? env : env2);
env2.values[displ++] = vAttr; env2.values[displ++] = vAttr;
v.attrs->push_back(Attr(i.first, vAttr, ptr(&i.second.pos))); v.attrs->push_back(Attr(i.first, vAttr, i.second.pos));
} }
/* If the rec contains an attribute called `__overrides', then /* If the rec contains an attribute called `__overrides', then
@ -1177,7 +1177,7 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
else else
for (auto & i : attrs) for (auto & i : attrs)
v.attrs->push_back(Attr(i.first, i.second.e->maybeThunk(state, env), ptr(&i.second.pos))); v.attrs->push_back(Attr(i.first, i.second.e->maybeThunk(state, env), i.second.pos));
/* Dynamic attrs apply *after* rec and __overrides. */ /* Dynamic attrs apply *after* rec and __overrides. */
for (auto & i : dynamicAttrs) { for (auto & i : dynamicAttrs) {
@ -1190,15 +1190,15 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
Symbol nameSym = state.symbols.create(nameVal.string.s); Symbol nameSym = state.symbols.create(nameVal.string.s);
Bindings::iterator j = v.attrs->find(nameSym); Bindings::iterator j = v.attrs->find(nameSym);
if (j != v.attrs->end()) if (j != v.attrs->end())
state.throwEvalError(i.pos, "dynamic attribute '%1%' already defined at %2%", nameSym, *j->pos); state.throwEvalError(i.pos, "dynamic attribute '%1%' already defined at %2%", nameSym, j->pos);
i.valueExpr->setName(nameSym); i.valueExpr->setName(nameSym);
/* Keep sorted order so find can catch duplicates */ /* Keep sorted order so find can catch duplicates */
v.attrs->push_back(Attr(nameSym, i.valueExpr->maybeThunk(state, *dynamicEnv), ptr(&i.pos))); v.attrs->push_back(Attr(nameSym, i.valueExpr->maybeThunk(state, *dynamicEnv), i.pos));
v.attrs->sort(); // FIXME: inefficient v.attrs->sort(); // FIXME: inefficient
} }
v.attrs->pos = ptr(&pos); v.attrs->pos = pos;
} }
@ -1256,7 +1256,7 @@ static std::string showAttrPath(EvalState & state, Env & env, const AttrPath & a
void ExprSelect::eval(EvalState & state, Env & env, Value & v) void ExprSelect::eval(EvalState & state, Env & env, Value & v)
{ {
Value vTmp; Value vTmp;
ptr<Pos> pos2(&noPos); PosIdx pos2;
Value * vAttrs = &vTmp; Value * vAttrs = &vTmp;
e->eval(state, env, vTmp); e->eval(state, env, vTmp);
@ -1289,14 +1289,15 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v)
} }
vAttrs = j->value; vAttrs = j->value;
pos2 = j->pos; pos2 = j->pos;
if (state.countCalls) state.attrSelects[*pos2]++; if (state.countCalls) state.attrSelects[pos2]++;
} }
state.forceValue(*vAttrs, (*pos2 != noPos ? *pos2 : this->pos ) ); state.forceValue(*vAttrs, (pos2 ? pos2 : this->pos ) );
} catch (Error & e) { } catch (Error & e) {
if (*pos2 != noPos && pos2->file != state.sDerivationNix) auto pos2r = state.positions[pos2];
state.addErrorTrace(e, *pos2, "while evaluating the attribute '%1%'", if (pos2 && pos2r.file != state.sDerivationNix)
state.addErrorTrace(e, pos2, "while evaluating the attribute '%1%'",
showAttrPath(state, env, attrPath)); showAttrPath(state, env, attrPath));
throw; throw;
} }
@ -1336,9 +1337,11 @@ void ExprLambda::eval(EvalState & state, Env & env, Value & v)
} }
void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value & vRes, const Pos & pos) void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value & vRes, const PosIdx pos)
{ {
auto trace = evalSettings.traceFunctionCalls ? std::make_unique<FunctionCallTrace>(pos) : nullptr; auto trace = evalSettings.traceFunctionCalls
? std::make_unique<FunctionCallTrace>(positions[pos])
: nullptr;
forceValue(fun, pos); forceValue(fun, pos);
@ -1701,7 +1704,7 @@ void ExprOpConcatLists::eval(EvalState & state, Env & env, Value & v)
} }
void EvalState::concatLists(Value & v, size_t nrLists, Value * * lists, const Pos & pos) void EvalState::concatLists(Value & v, size_t nrLists, Value * * lists, const PosIdx pos)
{ {
nrListConcats++; nrListConcats++;
@ -1821,7 +1824,7 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
void ExprPos::eval(EvalState & state, Env & env, Value & v) void ExprPos::eval(EvalState & state, Env & env, Value & v)
{ {
state.mkPos(v, ptr(&pos)); state.mkPos(v, pos);
} }
@ -1841,7 +1844,7 @@ void EvalState::forceValueDeep(Value & v)
try { try {
recurse(*i.value); recurse(*i.value);
} catch (Error & e) { } catch (Error & e) {
addErrorTrace(e, *i.pos, "while evaluating the attribute '%1%'", i.name); addErrorTrace(e, i.pos, "while evaluating the attribute '%1%'", i.name);
throw; throw;
} }
} }
@ -1856,7 +1859,7 @@ void EvalState::forceValueDeep(Value & v)
} }
NixInt EvalState::forceInt(Value & v, const Pos & pos) NixInt EvalState::forceInt(Value & v, const PosIdx pos)
{ {
forceValue(v, pos); forceValue(v, pos);
if (v.type() != nInt) if (v.type() != nInt)
@ -1865,7 +1868,7 @@ NixInt EvalState::forceInt(Value & v, const Pos & pos)
} }
NixFloat EvalState::forceFloat(Value & v, const Pos & pos) NixFloat EvalState::forceFloat(Value & v, const PosIdx pos)
{ {
forceValue(v, pos); forceValue(v, pos);
if (v.type() == nInt) if (v.type() == nInt)
@ -1876,7 +1879,7 @@ NixFloat EvalState::forceFloat(Value & v, const Pos & pos)
} }
bool EvalState::forceBool(Value & v, const Pos & pos) bool EvalState::forceBool(Value & v, const PosIdx pos)
{ {
forceValue(v, pos); forceValue(v, pos);
if (v.type() != nBool) if (v.type() != nBool)
@ -1891,7 +1894,7 @@ bool EvalState::isFunctor(Value & fun)
} }
void EvalState::forceFunction(Value & v, const Pos & pos) void EvalState::forceFunction(Value & v, const PosIdx pos)
{ {
forceValue(v, pos); forceValue(v, pos);
if (v.type() != nFunction && !isFunctor(v)) if (v.type() != nFunction && !isFunctor(v))
@ -1899,7 +1902,7 @@ void EvalState::forceFunction(Value & v, const Pos & pos)
} }
std::string_view EvalState::forceString(Value & v, const Pos & pos) std::string_view EvalState::forceString(Value & v, const PosIdx pos)
{ {
forceValue(v, pos); forceValue(v, pos);
if (v.type() != nString) { if (v.type() != nString) {
@ -1952,7 +1955,7 @@ NixStringContext Value::getContext(const Store & store)
} }
std::string_view EvalState::forceString(Value & v, PathSet & context, const Pos & pos) std::string_view EvalState::forceString(Value & v, PathSet & context, const PosIdx pos)
{ {
auto s = forceString(v, pos); auto s = forceString(v, pos);
copyContext(v, context); copyContext(v, context);
@ -1960,7 +1963,7 @@ std::string_view EvalState::forceString(Value & v, PathSet & context, const Pos
} }
std::string_view EvalState::forceStringNoCtx(Value & v, const Pos & pos) std::string_view EvalState::forceStringNoCtx(Value & v, const PosIdx pos)
{ {
auto s = forceString(v, pos); auto s = forceString(v, pos);
if (v.string.context) { if (v.string.context) {
@ -1980,13 +1983,13 @@ bool EvalState::isDerivation(Value & v)
if (v.type() != nAttrs) return false; if (v.type() != nAttrs) return false;
Bindings::iterator i = v.attrs->find(sType); Bindings::iterator i = v.attrs->find(sType);
if (i == v.attrs->end()) return false; if (i == v.attrs->end()) return false;
forceValue(*i->value, *i->pos); forceValue(*i->value, i->pos);
if (i->value->type() != nString) return false; if (i->value->type() != nString) return false;
return strcmp(i->value->string.s, "derivation") == 0; return strcmp(i->value->string.s, "derivation") == 0;
} }
std::optional<std::string> EvalState::tryAttrsToString(const Pos & pos, Value & v, std::optional<std::string> EvalState::tryAttrsToString(const PosIdx pos, Value & v,
PathSet & context, bool coerceMore, bool copyToStore) PathSet & context, bool coerceMore, bool copyToStore)
{ {
auto i = v.attrs->find(sToString); auto i = v.attrs->find(sToString);
@ -1999,7 +2002,7 @@ std::optional<std::string> EvalState::tryAttrsToString(const Pos & pos, Value &
return {}; return {};
} }
BackedStringView EvalState::coerceToString(const Pos & pos, Value & v, PathSet & context, BackedStringView EvalState::coerceToString(const PosIdx pos, Value & v, PathSet & context,
bool coerceMore, bool copyToStore, bool canonicalizePath) bool coerceMore, bool copyToStore, bool canonicalizePath)
{ {
forceValue(v, pos); forceValue(v, pos);
@ -2028,7 +2031,7 @@ BackedStringView EvalState::coerceToString(const Pos & pos, Value & v, PathSet &
} }
if (v.type() == nExternal) if (v.type() == nExternal)
return v.external->coerceToString(pos, context, coerceMore, copyToStore); return v.external->coerceToString(positions[pos], context, coerceMore, copyToStore);
if (coerceMore) { if (coerceMore) {
@ -2081,7 +2084,7 @@ std::string EvalState::copyPathToStore(PathSet & context, const Path & path)
} }
Path EvalState::coerceToPath(const Pos & pos, Value & v, PathSet & context) Path EvalState::coerceToPath(const PosIdx pos, Value & v, PathSet & context)
{ {
auto path = coerceToString(pos, v, context, false, false).toOwned(); auto path = coerceToString(pos, v, context, false, false).toOwned();
if (path == "" || path[0] != '/') if (path == "" || path[0] != '/')
@ -2090,14 +2093,14 @@ Path EvalState::coerceToPath(const Pos & pos, Value & v, PathSet & context)
} }
StorePath EvalState::coerceToStorePath(const Pos & pos, Value & v, PathSet & context) StorePath EvalState::coerceToStorePath(const PosIdx pos, Value & v, PathSet & context)
{ {
auto path = coerceToString(pos, v, context, false, false).toOwned(); auto path = coerceToString(pos, v, context, false, false).toOwned();
if (auto storePath = store->maybeParseStorePath(path)) if (auto storePath = store->maybeParseStorePath(path))
return *storePath; return *storePath;
throw EvalError({ throw EvalError({
.msg = hintfmt("path '%1%' is not in the Nix store", path), .msg = hintfmt("path '%1%' is not in the Nix store", path),
.errPos = pos .errPos = positions[pos]
}); });
} }
@ -2268,10 +2271,10 @@ void EvalState::printStats()
obj.attr("name", (const std::string &) i.first->name); obj.attr("name", (const std::string &) i.first->name);
else else
obj.attr("name", nullptr); obj.attr("name", nullptr);
if (i.first->pos) { if (auto pos = positions[i.first->pos]) {
obj.attr("file", (const std::string &) i.first->pos.file); obj.attr("file", (const std::string &) pos.file);
obj.attr("line", i.first->pos.line); obj.attr("line", pos.line);
obj.attr("column", i.first->pos.column); obj.attr("column", pos.column);
} }
obj.attr("count", i.second); obj.attr("count", i.second);
} }
@ -2280,10 +2283,10 @@ void EvalState::printStats()
auto list = topObj.list("attributes"); auto list = topObj.list("attributes");
for (auto & i : attrSelects) { for (auto & i : attrSelects) {
auto obj = list.object(); auto obj = list.object();
if (i.first) { if (auto pos = positions[i.first]) {
obj.attr("file", (const std::string &) i.first.file); obj.attr("file", (const std::string &) pos.file);
obj.attr("line", i.first.line); obj.attr("line", pos.line);
obj.attr("column", i.first.column); obj.attr("column", pos.column);
} }
obj.attr("count", i.second); obj.attr("count", i.second);
} }

77
src/libexpr/eval.hh
View file

@ -23,7 +23,7 @@ class StorePath;
enum RepairFlag : bool; enum RepairFlag : bool;
typedef void (* PrimOpFun) (EvalState & state, const Pos & pos, Value * * args, Value & v); typedef void (* PrimOpFun) (EvalState & state, const PosIdx pos, Value * * args, Value & v);
struct PrimOp struct PrimOp
@ -73,6 +73,7 @@ class EvalState
{ {
public: public:
SymbolTable symbols; SymbolTable symbols;
PosTable positions;
const Symbol sWith, sOutPath, sDrvPath, sType, sMeta, sName, sValue, const Symbol sWith, sOutPath, sDrvPath, sType, sMeta, sName, sValue,
sSystem, sOverrides, sOutputs, sOutputName, sIgnoreNulls, sSystem, sOverrides, sOutputs, sOutputName, sIgnoreNulls,
@ -205,7 +206,7 @@ public:
/* Look up a file in the search path. */ /* Look up a file in the search path. */
Path findFile(const std::string_view path); Path findFile(const std::string_view path);
Path findFile(SearchPath & searchPath, const std::string_view path, const Pos & pos = noPos); Path findFile(SearchPath & searchPath, const std::string_view path, const PosIdx pos = noPos);
/* If the specified search path element is a URI, download it. */ /* If the specified search path element is a URI, download it. */
std::pair<bool, std::string> resolveSearchPathElem(const SearchPathElem & elem); std::pair<bool, std::string> resolveSearchPathElem(const SearchPathElem & elem);
@ -217,14 +218,14 @@ public:
/* Evaluation the expression, then verify that it has the expected /* Evaluation the expression, then verify that it has the expected
type. */ type. */
inline bool evalBool(Env & env, Expr * e); inline bool evalBool(Env & env, Expr * e);
inline bool evalBool(Env & env, Expr * e, const Pos & pos); inline bool evalBool(Env & env, Expr * e, const PosIdx pos);
inline void evalAttrs(Env & env, Expr * e, Value & v); inline void evalAttrs(Env & env, Expr * e, Value & v);
/* If `v' is a thunk, enter it and overwrite `v' with the result /* If `v' is a thunk, enter it and overwrite `v' with the result
of the evaluation of the thunk. If `v' is a delayed function of the evaluation of the thunk. If `v' is a delayed function
application, call the function and overwrite `v' with the application, call the function and overwrite `v' with the
result. Otherwise, this is a no-op. */ result. Otherwise, this is a no-op. */
inline void forceValue(Value & v, const Pos & pos); inline void forceValue(Value & v, const PosIdx pos);
template <typename Callable> template <typename Callable>
inline void forceValue(Value & v, Callable getPos); inline void forceValue(Value & v, Callable getPos);
@ -234,72 +235,72 @@ public:
void forceValueDeep(Value & v); void forceValueDeep(Value & v);
/* Force `v', and then verify that it has the expected type. */ /* Force `v', and then verify that it has the expected type. */
NixInt forceInt(Value & v, const Pos & pos); NixInt forceInt(Value & v, const PosIdx pos);
NixFloat forceFloat(Value & v, const Pos & pos); NixFloat forceFloat(Value & v, const PosIdx pos);
bool forceBool(Value & v, const Pos & pos); bool forceBool(Value & v, const PosIdx pos);
void forceAttrs(Value & v, const Pos & pos); void forceAttrs(Value & v, const PosIdx pos);
template <typename Callable> template <typename Callable>
inline void forceAttrs(Value & v, Callable getPos); inline void forceAttrs(Value & v, Callable getPos);
inline void forceList(Value & v, const Pos & pos); inline void forceList(Value & v, const PosIdx pos);
void forceFunction(Value & v, const Pos & pos); // either lambda or primop void forceFunction(Value & v, const PosIdx pos); // either lambda or primop
std::string_view forceString(Value & v, const Pos & pos = noPos); std::string_view forceString(Value & v, const PosIdx pos = noPos);
std::string_view forceString(Value & v, PathSet & context, const Pos & pos = noPos); std::string_view forceString(Value & v, PathSet & context, const PosIdx pos = noPos);
std::string_view forceStringNoCtx(Value & v, const Pos & pos = noPos); std::string_view forceStringNoCtx(Value & v, const PosIdx pos = noPos);
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwEvalError(const Pos & pos, const char * s) const; void throwEvalError(const PosIdx pos, const char * s) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwTypeError(const Pos & pos, const char * s, const Value & v) const; void throwTypeError(const PosIdx pos, const char * s, const Value & v) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwEvalError(const char * s, const std::string & s2) const; void throwEvalError(const char * s, const std::string & s2) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwEvalError(const Pos & pos, const Suggestions & suggestions, const char * s, void throwEvalError(const PosIdx pos, const Suggestions & suggestions, const char * s,
const std::string & s2) const; const std::string & s2) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwEvalError(const Pos & pos, const char * s, const std::string & s2) const; void throwEvalError(const PosIdx pos, const char * s, const std::string & s2) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwEvalError(const char * s, const std::string & s2, const std::string & s3) const; void throwEvalError(const char * s, const std::string & s2, const std::string & s3) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwEvalError(const Pos & pos, const char * s, const std::string & s2, const std::string & s3) const; void throwEvalError(const PosIdx pos, const char * s, const std::string & s2, const std::string & s3) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwEvalError(const Pos & p1, const char * s, const Symbol & sym, const Pos & p2) const; void throwEvalError(const PosIdx p1, const char * s, const Symbol & sym, const PosIdx p2) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwTypeError(const Pos & pos, const char * s) const; void throwTypeError(const PosIdx pos, const char * s) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwTypeError(const Pos & pos, const char * s, const ExprLambda & fun, const Symbol & s2) const; void throwTypeError(const PosIdx pos, const char * s, const ExprLambda & fun, const Symbol & s2) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwTypeError(const Pos & pos, const Suggestions & suggestions, const char * s, void throwTypeError(const PosIdx pos, const Suggestions & suggestions, const char * s,
const ExprLambda & fun, const Symbol & s2) const; const ExprLambda & fun, const Symbol & s2) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwTypeError(const char * s, const Value & v) const; void throwTypeError(const char * s, const Value & v) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwAssertionError(const Pos & pos, const char * s, const std::string & s1) const; void throwAssertionError(const PosIdx pos, const char * s, const std::string & s1) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwUndefinedVarError(const Pos & pos, const char * s, const std::string & s1) const; void throwUndefinedVarError(const PosIdx pos, const char * s, const std::string & s1) const;
[[gnu::noinline, gnu::noreturn]] [[gnu::noinline, gnu::noreturn]]
void throwMissingArgumentError(const Pos & pos, const char * s, const std::string & s1) const; void throwMissingArgumentError(const PosIdx pos, const char * s, const std::string & s1) const;
[[gnu::noinline]] [[gnu::noinline]]
void addErrorTrace(Error & e, const char * s, const std::string & s2) const; void addErrorTrace(Error & e, const char * s, const std::string & s2) const;
[[gnu::noinline]] [[gnu::noinline]]
void addErrorTrace(Error & e, const Pos & pos, const char * s, const std::string & s2) const; void addErrorTrace(Error & e, const PosIdx pos, const char * s, const std::string & s2) const;
public: public:
/* Return true iff the value `v' denotes a derivation (i.e. a /* Return true iff the value `v' denotes a derivation (i.e. a
set with attribute `type = "derivation"'). */ set with attribute `type = "derivation"'). */
bool isDerivation(Value & v); bool isDerivation(Value & v);
std::optional<std::string> tryAttrsToString(const Pos & pos, Value & v, std::optional<std::string> tryAttrsToString(const PosIdx pos, Value & v,
PathSet & context, bool coerceMore = false, bool copyToStore = true); PathSet & context, bool coerceMore = false, bool copyToStore = true);
/* String coercion. Converts strings, paths and derivations to a /* String coercion. Converts strings, paths and derivations to a
string. If `coerceMore' is set, also converts nulls, integers, string. If `coerceMore' is set, also converts nulls, integers,
booleans and lists to a string. If `copyToStore' is set, booleans and lists to a string. If `copyToStore' is set,
referenced paths are copied to the Nix store as a side effect. */ referenced paths are copied to the Nix store as a side effect. */
BackedStringView coerceToString(const Pos & pos, Value & v, PathSet & context, BackedStringView coerceToString(const PosIdx pos, Value & v, PathSet & context,
bool coerceMore = false, bool copyToStore = true, bool coerceMore = false, bool copyToStore = true,
bool canonicalizePath = true); bool canonicalizePath = true);
@ -308,10 +309,10 @@ public:
/* Path coercion. Converts strings, paths and derivations to a /* Path coercion. Converts strings, paths and derivations to a
path. The result is guaranteed to be a canonicalised, absolute path. The result is guaranteed to be a canonicalised, absolute
path. Nothing is copied to the store. */ path. Nothing is copied to the store. */
Path coerceToPath(const Pos & pos, Value & v, PathSet & context); Path coerceToPath(const PosIdx pos, Value & v, PathSet & context);
/* Like coerceToPath, but the result must be a store path. */ /* Like coerceToPath, but the result must be a store path. */
StorePath coerceToStorePath(const Pos & pos, Value & v, PathSet & context); StorePath coerceToStorePath(const PosIdx pos, Value & v, PathSet & context);
public: public:
@ -372,9 +373,9 @@ public:
bool isFunctor(Value & fun); bool isFunctor(Value & fun);
// FIXME: use std::span // FIXME: use std::span
void callFunction(Value & fun, size_t nrArgs, Value * * args, Value & vRes, const Pos & pos); void callFunction(Value & fun, size_t nrArgs, Value * * args, Value & vRes, const PosIdx pos);
void callFunction(Value & fun, Value & arg, Value & vRes, const Pos & pos) void callFunction(Value & fun, Value & arg, Value & vRes, const PosIdx pos)
{ {
Value * args[] = {&arg}; Value * args[] = {&arg};
callFunction(fun, 1, args, vRes, pos); callFunction(fun, 1, args, vRes, pos);
@ -400,9 +401,9 @@ public:
void mkList(Value & v, size_t length); void mkList(Value & v, size_t length);
void mkThunk_(Value & v, Expr * expr); void mkThunk_(Value & v, Expr * expr);
void mkPos(Value & v, ptr<Pos> pos); void mkPos(Value & v, PosIdx pos);
void concatLists(Value & v, size_t nrLists, Value * * lists, const Pos & pos); void concatLists(Value & v, size_t nrLists, Value * * lists, const PosIdx pos);
/* Print statistics. */ /* Print statistics. */
void printStats(); void printStats();
@ -438,7 +439,7 @@ private:
void incrFunctionCall(ExprLambda * fun); void incrFunctionCall(ExprLambda * fun);
typedef std::map<Pos, size_t> AttrSelects; typedef std::map<PosIdx, size_t> AttrSelects;
AttrSelects attrSelects; AttrSelects attrSelects;
friend struct ExprOpUpdate; friend struct ExprOpUpdate;
@ -449,9 +450,9 @@ private:
friend struct ExprFloat; friend struct ExprFloat;
friend struct ExprPath; friend struct ExprPath;
friend struct ExprSelect; friend struct ExprSelect;
friend void prim_getAttr(EvalState & state, const Pos & pos, Value * * args, Value & v); friend void prim_getAttr(EvalState & state, const PosIdx pos, Value * * args, Value & v);
friend void prim_match(EvalState & state, const Pos & pos, Value * * args, Value & v); friend void prim_match(EvalState & state, const PosIdx pos, Value * * args, Value & v);
friend void prim_split(EvalState & state, const Pos & pos, Value * * args, Value & v); friend void prim_split(EvalState & state, const PosIdx pos, Value * * args, Value & v);
friend struct Value; friend struct Value;
}; };

56
src/libexpr/flake/flake.cc
View file

@ -72,7 +72,7 @@ static std::tuple<fetchers::Tree, FlakeRef, FlakeRef> fetchOrSubstituteTree(
return {std::move(tree), resolvedRef, lockedRef}; return {std::move(tree), resolvedRef, lockedRef};
} }
static void forceTrivialValue(EvalState & state, Value & value, const Pos & pos) static void forceTrivialValue(EvalState & state, Value & value, const PosIdx pos)
{ {
if (value.isThunk() && value.isTrivial()) if (value.isThunk() && value.isTrivial())
state.forceValue(value, pos); state.forceValue(value, pos);
@ -80,20 +80,20 @@ static void forceTrivialValue(EvalState & state, Value & value, const Pos & pos)
static void expectType(EvalState & state, ValueType type, static void expectType(EvalState & state, ValueType type,
Value & value, const Pos & pos) Value & value, const PosIdx pos)
{ {
forceTrivialValue(state, value, pos); forceTrivialValue(state, value, pos);
if (value.type() != type) if (value.type() != type)
throw Error("expected %s but got %s at %s", throw Error("expected %s but got %s at %s",
showType(type), showType(value.type()), pos); showType(type), showType(value.type()), state.positions[pos]);
} }
static std::map<FlakeId, FlakeInput> parseFlakeInputs( static std::map<FlakeId, FlakeInput> parseFlakeInputs(
EvalState & state, Value * value, const Pos & pos, EvalState & state, Value * value, const PosIdx pos,
const std::optional<Path> & baseDir, InputPath lockRootPath); const std::optional<Path> & baseDir, InputPath lockRootPath);
static FlakeInput parseFlakeInput(EvalState & state, static FlakeInput parseFlakeInput(EvalState & state,
const std::string & inputName, Value * value, const Pos & pos, const std::string & inputName, Value * value, const PosIdx pos,
const std::optional<Path> & baseDir, InputPath lockRootPath) const std::optional<Path> & baseDir, InputPath lockRootPath)
{ {
expectType(state, nAttrs, *value, pos); expectType(state, nAttrs, *value, pos);
@ -111,16 +111,16 @@ static FlakeInput parseFlakeInput(EvalState & state,
for (nix::Attr attr : *(value->attrs)) { for (nix::Attr attr : *(value->attrs)) {
try { try {
if (attr.name == sUrl) { if (attr.name == sUrl) {
expectType(state, nString, *attr.value, *attr.pos); expectType(state, nString, *attr.value, attr.pos);
url = attr.value->string.s; url = attr.value->string.s;
attrs.emplace("url", *url); attrs.emplace("url", *url);
} else if (attr.name == sFlake) { } else if (attr.name == sFlake) {
expectType(state, nBool, *attr.value, *attr.pos); expectType(state, nBool, *attr.value, attr.pos);
input.isFlake = attr.value->boolean; input.isFlake = attr.value->boolean;
} else if (attr.name == sInputs) { } else if (attr.name == sInputs) {
input.overrides = parseFlakeInputs(state, attr.value, *attr.pos, baseDir, lockRootPath); input.overrides = parseFlakeInputs(state, attr.value, attr.pos, baseDir, lockRootPath);
} else if (attr.name == sFollows) { } else if (attr.name == sFollows) {
expectType(state, nString, *attr.value, *attr.pos); expectType(state, nString, *attr.value, attr.pos);
auto follows(parseInputPath(attr.value->string.s)); auto follows(parseInputPath(attr.value->string.s));
follows.insert(follows.begin(), lockRootPath.begin(), lockRootPath.end()); follows.insert(follows.begin(), lockRootPath.begin(), lockRootPath.end());
input.follows = follows; input.follows = follows;
@ -141,7 +141,7 @@ static FlakeInput parseFlakeInput(EvalState & state,
} }
} }
} catch (Error & e) { } catch (Error & e) {
e.addTrace(*attr.pos, hintfmt("in flake attribute '%s'", attr.name)); e.addTrace(state.positions[attr.pos], hintfmt("in flake attribute '%s'", attr.name));
throw; throw;
} }
} }
@ -150,13 +150,13 @@ static FlakeInput parseFlakeInput(EvalState & state,
try { try {
input.ref = FlakeRef::fromAttrs(attrs); input.ref = FlakeRef::fromAttrs(attrs);
} catch (Error & e) { } catch (Error & e) {
e.addTrace(pos, hintfmt("in flake input")); e.addTrace(state.positions[pos], hintfmt("in flake input"));
throw; throw;
} }
else { else {
attrs.erase("url"); attrs.erase("url");
if (!attrs.empty()) if (!attrs.empty())
throw Error("unexpected flake input attribute '%s', at %s", attrs.begin()->first, pos); throw Error("unexpected flake input attribute '%s', at %s", attrs.begin()->first, state.positions[pos]);
if (url) if (url)
input.ref = parseFlakeRef(*url, baseDir, true, input.isFlake); input.ref = parseFlakeRef(*url, baseDir, true, input.isFlake);
} }
@ -168,7 +168,7 @@ static FlakeInput parseFlakeInput(EvalState & state,
} }
static std::map<FlakeId, FlakeInput> parseFlakeInputs( static std::map<FlakeId, FlakeInput> parseFlakeInputs(
EvalState & state, Value * value, const Pos & pos, EvalState & state, Value * value, const PosIdx pos,
const std::optional<Path> & baseDir, InputPath lockRootPath) const std::optional<Path> & baseDir, InputPath lockRootPath)
{ {
std::map<FlakeId, FlakeInput> inputs; std::map<FlakeId, FlakeInput> inputs;
@ -180,7 +180,7 @@ static std::map<FlakeId, FlakeInput> parseFlakeInputs(
parseFlakeInput(state, parseFlakeInput(state,
inputAttr.name, inputAttr.name,
inputAttr.value, inputAttr.value,
*inputAttr.pos, inputAttr.pos,
baseDir, baseDir,
lockRootPath)); lockRootPath));
} }
@ -218,22 +218,22 @@ static Flake getFlake(
Value vInfo; Value vInfo;
state.evalFile(flakeFile, vInfo, true); // FIXME: symlink attack state.evalFile(flakeFile, vInfo, true); // FIXME: symlink attack
expectType(state, nAttrs, vInfo, Pos(foFile, state.symbols.create(flakeFile), 0, 0)); expectType(state, nAttrs, vInfo, state.positions.add({state.symbols.create(flakeFile), foFile}, 0, 0));
if (auto description = vInfo.attrs->get(state.sDescription)) { if (auto description = vInfo.attrs->get(state.sDescription)) {
expectType(state, nString, *description->value, *description->pos); expectType(state, nString, *description->value, description->pos);
flake.description = description->value->string.s; flake.description = description->value->string.s;
} }
auto sInputs = state.symbols.create("inputs"); auto sInputs = state.symbols.create("inputs");
if (auto inputs = vInfo.attrs->get(sInputs)) if (auto inputs = vInfo.attrs->get(sInputs))
flake.inputs = parseFlakeInputs(state, inputs->value, *inputs->pos, flakeDir, lockRootPath); flake.inputs = parseFlakeInputs(state, inputs->value, inputs->pos, flakeDir, lockRootPath);
auto sOutputs = state.symbols.create("outputs"); auto sOutputs = state.symbols.create("outputs");
if (auto outputs = vInfo.attrs->get(sOutputs)) { if (auto outputs = vInfo.attrs->get(sOutputs)) {
expectType(state, nFunction, *outputs->value, *outputs->pos); expectType(state, nFunction, *outputs->value, outputs->pos);
if (outputs->value->isLambda() && outputs->value->lambda.fun->hasFormals()) { if (outputs->value->isLambda() && outputs->value->lambda.fun->hasFormals()) {
for (auto & formal : outputs->value->lambda.fun->formals->formals) { for (auto & formal : outputs->value->lambda.fun->formals->formals) {
@ -250,29 +250,29 @@ static Flake getFlake(
auto sNixConfig = state.symbols.create("nixConfig"); auto sNixConfig = state.symbols.create("nixConfig");
if (auto nixConfig = vInfo.attrs->get(sNixConfig)) { if (auto nixConfig = vInfo.attrs->get(sNixConfig)) {
expectType(state, nAttrs, *nixConfig->value, *nixConfig->pos); expectType(state, nAttrs, *nixConfig->value, nixConfig->pos);
for (auto & setting : *nixConfig->value->attrs) { for (auto & setting : *nixConfig->value->attrs) {
forceTrivialValue(state, *setting.value, *setting.pos); forceTrivialValue(state, *setting.value, setting.pos);
if (setting.value->type() == nString) if (setting.value->type() == nString)
flake.config.settings.insert({setting.name, std::string(state.forceStringNoCtx(*setting.value, *setting.pos))}); flake.config.settings.insert({setting.name, std::string(state.forceStringNoCtx(*setting.value, setting.pos))});
else if (setting.value->type() == nPath) { else if (setting.value->type() == nPath) {
PathSet emptyContext = {}; PathSet emptyContext = {};
flake.config.settings.emplace( flake.config.settings.emplace(
setting.name, setting.name,
state.coerceToString(*setting.pos, *setting.value, emptyContext, false, true, true) .toOwned()); state.coerceToString(setting.pos, *setting.value, emptyContext, false, true, true) .toOwned());
} }
else if (setting.value->type() == nInt) else if (setting.value->type() == nInt)
flake.config.settings.insert({setting.name, state.forceInt(*setting.value, *setting.pos)}); flake.config.settings.insert({setting.name, state.forceInt(*setting.value, setting.pos)});
else if (setting.value->type() == nBool) else if (setting.value->type() == nBool)
flake.config.settings.insert({setting.name, Explicit<bool> { state.forceBool(*setting.value, *setting.pos) }}); flake.config.settings.insert({setting.name, Explicit<bool> { state.forceBool(*setting.value, setting.pos) }});
else if (setting.value->type() == nList) { else if (setting.value->type() == nList) {
std::vector<std::string> ss; std::vector<std::string> ss;
for (auto elem : setting.value->listItems()) { for (auto elem : setting.value->listItems()) {
if (elem->type() != nString) if (elem->type() != nString)
throw TypeError("list element in flake configuration setting '%s' is %s while a string is expected", throw TypeError("list element in flake configuration setting '%s' is %s while a string is expected",
setting.name, showType(*setting.value)); setting.name, showType(*setting.value));
ss.emplace_back(state.forceStringNoCtx(*elem, *setting.pos)); ss.emplace_back(state.forceStringNoCtx(*elem, setting.pos));
} }
flake.config.settings.insert({setting.name, ss}); flake.config.settings.insert({setting.name, ss});
} }
@ -288,7 +288,7 @@ static Flake getFlake(
attr.name != sOutputs && attr.name != sOutputs &&
attr.name != sNixConfig) attr.name != sNixConfig)
throw Error("flake '%s' has an unsupported attribute '%s', at %s", throw Error("flake '%s' has an unsupported attribute '%s', at %s",
lockedRef, attr.name, *attr.pos); lockedRef, attr.name, state.positions[attr.pos]);
} }
return flake; return flake;
@ -704,12 +704,12 @@ void callFlake(EvalState & state,
state.callFunction(*vTmp2, *vRootSubdir, vRes, noPos); state.callFunction(*vTmp2, *vRootSubdir, vRes, noPos);
} }
static void prim_getFlake(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_getFlake(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
std::string flakeRefS(state.forceStringNoCtx(*args[0], pos)); std::string flakeRefS(state.forceStringNoCtx(*args[0], pos));
auto flakeRef = parseFlakeRef(flakeRefS, {}, true); auto flakeRef = parseFlakeRef(flakeRefS, {}, true);
if (evalSettings.pureEval && !flakeRef.input.isLocked()) if (evalSettings.pureEval && !flakeRef.input.isLocked())
throw Error("cannot call 'getFlake' on unlocked flake reference '%s', at %s (use --impure to override)", flakeRefS, pos); throw Error("cannot call 'getFlake' on unlocked flake reference '%s', at %s (use --impure to override)", flakeRefS, state.positions[pos]);
callFlake(state, callFlake(state,
lockFlake(state, flakeRef, lockFlake(state, flakeRef,

2
src/libexpr/function-trace.hh
View file

@ -8,7 +8,7 @@ namespace nix {
struct FunctionCallTrace struct FunctionCallTrace
{ {
const Pos & pos; const Pos pos;
FunctionCallTrace(const Pos & pos); FunctionCallTrace(const Pos & pos);
~FunctionCallTrace(); ~FunctionCallTrace();
}; };

18
src/libexpr/get-drvs.cc
View file

@ -61,7 +61,7 @@ std::string DrvInfo::querySystem() const
{ {
if (system == "" && attrs) { if (system == "" && attrs) {
auto i = attrs->find(state->sSystem); auto i = attrs->find(state->sSystem);
system = i == attrs->end() ? "unknown" : state->forceStringNoCtx(*i->value, *i->pos); system = i == attrs->end() ? "unknown" : state->forceStringNoCtx(*i->value, i->pos);
} }
return system; return system;
} }
@ -75,7 +75,7 @@ std::optional<StorePath> DrvInfo::queryDrvPath() const
if (i == attrs->end()) if (i == attrs->end())
drvPath = {std::nullopt}; drvPath = {std::nullopt};
else else
drvPath = {state->coerceToStorePath(*i->pos, *i->value, context)}; drvPath = {state->coerceToStorePath(i->pos, *i->value, context)};
} }
return drvPath.value_or(std::nullopt); return drvPath.value_or(std::nullopt);
} }
@ -95,7 +95,7 @@ StorePath DrvInfo::queryOutPath() const
Bindings::iterator i = attrs->find(state->sOutPath); Bindings::iterator i = attrs->find(state->sOutPath);
PathSet context; PathSet context;
if (i != attrs->end()) if (i != attrs->end())
outPath = state->coerceToStorePath(*i->pos, *i->value, context); outPath = state->coerceToStorePath(i->pos, *i->value, context);
} }
if (!outPath) if (!outPath)
throw UnimplementedError("CA derivations are not yet supported"); throw UnimplementedError("CA derivations are not yet supported");
@ -109,23 +109,23 @@ DrvInfo::Outputs DrvInfo::queryOutputs(bool withPaths, bool onlyOutputsToInstall
/* Get the ‘outputs’ list. */ /* Get the ‘outputs’ list. */
Bindings::iterator i; Bindings::iterator i;
if (attrs && (i = attrs->find(state->sOutputs)) != attrs->end()) { if (attrs && (i = attrs->find(state->sOutputs)) != attrs->end()) {
state->forceList(*i->value, *i->pos); state->forceList(*i->value, i->pos);
/* For each output... */ /* For each output... */
for (auto elem : i->value->listItems()) { for (auto elem : i->value->listItems()) {
std::string output(state->forceStringNoCtx(*elem, *i->pos)); std::string output(state->forceStringNoCtx(*elem, i->pos));
if (withPaths) { if (withPaths) {
/* Evaluate the corresponding set. */ /* Evaluate the corresponding set. */
Bindings::iterator out = attrs->find(state->symbols.create(output)); Bindings::iterator out = attrs->find(state->symbols.create(output));
if (out == attrs->end()) continue; // FIXME: throw error? if (out == attrs->end()) continue; // FIXME: throw error?
state->forceAttrs(*out->value, *i->pos); state->forceAttrs(*out->value, i->pos);
/* And evaluate its ‘outPath’ attribute. */ /* And evaluate its ‘outPath’ attribute. */
Bindings::iterator outPath = out->value->attrs->find(state->sOutPath); Bindings::iterator outPath = out->value->attrs->find(state->sOutPath);
if (outPath == out->value->attrs->end()) continue; // FIXME: throw error? if (outPath == out->value->attrs->end()) continue; // FIXME: throw error?
PathSet context; PathSet context;
outputs.emplace(output, state->coerceToStorePath(*outPath->pos, *outPath->value, context)); outputs.emplace(output, state->coerceToStorePath(outPath->pos, *outPath->value, context));
} else } else
outputs.emplace(output, std::nullopt); outputs.emplace(output, std::nullopt);
} }
@ -168,7 +168,7 @@ Bindings * DrvInfo::getMeta()
if (!attrs) return 0; if (!attrs) return 0;
Bindings::iterator a = attrs->find(state->sMeta); Bindings::iterator a = attrs->find(state->sMeta);
if (a == attrs->end()) return 0; if (a == attrs->end()) return 0;
state->forceAttrs(*a->value, *a->pos); state->forceAttrs(*a->value, a->pos);
meta = a->value->attrs; meta = a->value->attrs;
return meta; return meta;
} }
@ -369,7 +369,7 @@ static void getDerivations(EvalState & state, Value & vIn,
`recurseForDerivations = true' attribute. */ `recurseForDerivations = true' attribute. */
if (i->value->type() == nAttrs) { if (i->value->type() == nAttrs) {
Bindings::iterator j = i->value->attrs->find(state.sRecurseForDerivations); Bindings::iterator j = i->value->attrs->find(state.sRecurseForDerivations);
if (j != i->value->attrs->end() && state.forceBool(*j->value, *j->pos)) if (j != i->value->attrs->end() && state.forceBool(*j->value, j->pos))
getDerivations(state, *i->value, pathPrefix2, autoArgs, drvs, done, ignoreAssertionFailures); getDerivations(state, *i->value, pathPrefix2, autoArgs, drvs, done, ignoreAssertionFailures);
} }
} }

10
src/libexpr/lexer.l
View file

@ -28,9 +28,9 @@ using namespace nix;
namespace nix { namespace nix {
static inline Pos makeCurPos(const YYLTYPE & loc, ParseData * data) static inline PosIdx makeCurPos(const YYLTYPE & loc, ParseData * data)
{ {
return Pos(data->origin, data->file, loc.first_line, loc.first_column); return data->state.positions.add(data->origin, loc.first_line, loc.first_column);
} }
#define CUR_POS makeCurPos(*yylloc, data) #define CUR_POS makeCurPos(*yylloc, data)
@ -155,7 +155,7 @@ or { return OR_KW; }
} catch (const boost::bad_lexical_cast &) { } catch (const boost::bad_lexical_cast &) {
throw ParseError({ throw ParseError({
.msg = hintfmt("invalid integer '%1%'", yytext), .msg = hintfmt("invalid integer '%1%'", yytext),
.errPos = CUR_POS, .errPos = data->state.positions[CUR_POS],
}); });
} }
return INT; return INT;
@ -165,7 +165,7 @@ or { return OR_KW; }
if (errno != 0) if (errno != 0)
throw ParseError({ throw ParseError({
.msg = hintfmt("invalid float '%1%'", yytext), .msg = hintfmt("invalid float '%1%'", yytext),
.errPos = CUR_POS, .errPos = data->state.positions[CUR_POS],
}); });
return FLOAT; return FLOAT;
} }
@ -294,7 +294,7 @@ or { return OR_KW; }
<INPATH_SLASH><<EOF>> { <INPATH_SLASH><<EOF>> {
throw ParseError({ throw ParseError({
.msg = hintfmt("path has a trailing slash"), .msg = hintfmt("path has a trailing slash"),
.errPos = CUR_POS, .errPos = data->state.positions[CUR_POS],
}); });
} }

96
src/libexpr/nixexpr.cc
View file

@ -249,33 +249,31 @@ std::string showAttrPath(const AttrPath & attrPath)
} }
Pos noPos;
/* Computing levels/displacements for variables. */ /* Computing levels/displacements for variables. */
void Expr::bindVars(const StaticEnv & env) void Expr::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
abort(); abort();
} }
void ExprInt::bindVars(const StaticEnv & env) void ExprInt::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
} }
void ExprFloat::bindVars(const StaticEnv & env) void ExprFloat::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
} }
void ExprString::bindVars(const StaticEnv & env) void ExprString::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
} }
void ExprPath::bindVars(const StaticEnv & env) void ExprPath::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
} }
void ExprVar::bindVars(const StaticEnv & env) void ExprVar::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
/* Check whether the variable appears in the environment. If so, /* Check whether the variable appears in the environment. If so,
set its level and displacement. */ set its level and displacement. */
@ -302,30 +300,30 @@ void ExprVar::bindVars(const StaticEnv & env)
if (withLevel == -1) if (withLevel == -1)
throw UndefinedVarError({ throw UndefinedVarError({
.msg = hintfmt("undefined variable '%1%'", name), .msg = hintfmt("undefined variable '%1%'", name),
.errPos = pos .errPos = pt[pos]
}); });
fromWith = true; fromWith = true;
this->level = withLevel; this->level = withLevel;
} }
void ExprSelect::bindVars(const StaticEnv & env) void ExprSelect::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
e->bindVars(env); e->bindVars(pt, env);
if (def) def->bindVars(env); if (def) def->bindVars(pt, env);
for (auto & i : attrPath) for (auto & i : attrPath)
if (!i.symbol.set()) if (!i.symbol.set())
i.expr->bindVars(env); i.expr->bindVars(pt, env);
} }
void ExprOpHasAttr::bindVars(const StaticEnv & env) void ExprOpHasAttr::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
e->bindVars(env); e->bindVars(pt, env);
for (auto & i : attrPath) for (auto & i : attrPath)
if (!i.symbol.set()) if (!i.symbol.set())
i.expr->bindVars(env); i.expr->bindVars(pt, env);
} }
void ExprAttrs::bindVars(const StaticEnv & env) void ExprAttrs::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
const StaticEnv * dynamicEnv = &env; const StaticEnv * dynamicEnv = &env;
StaticEnv newEnv(false, &env, recursive ? attrs.size() : 0); StaticEnv newEnv(false, &env, recursive ? attrs.size() : 0);
@ -340,26 +338,26 @@ void ExprAttrs::bindVars(const StaticEnv & env)
// No need to sort newEnv since attrs is in sorted order. // No need to sort newEnv since attrs is in sorted order.
for (auto & i : attrs) for (auto & i : attrs)
i.second.e->bindVars(i.second.inherited ? env : newEnv); i.second.e->bindVars(pt, i.second.inherited ? env : newEnv);
} }
else else
for (auto & i : attrs) for (auto & i : attrs)
i.second.e->bindVars(env); i.second.e->bindVars(pt, env);
for (auto & i : dynamicAttrs) { for (auto & i : dynamicAttrs) {
i.nameExpr->bindVars(*dynamicEnv); i.nameExpr->bindVars(pt, *dynamicEnv);
i.valueExpr->bindVars(*dynamicEnv); i.valueExpr->bindVars(pt, *dynamicEnv);
} }
} }
void ExprList::bindVars(const StaticEnv & env) void ExprList::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
for (auto & i : elems) for (auto & i : elems)
i->bindVars(env); i->bindVars(pt, env);
} }
void ExprLambda::bindVars(const StaticEnv & env) void ExprLambda::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
StaticEnv newEnv( StaticEnv newEnv(
false, &env, false, &env,
@ -377,20 +375,20 @@ void ExprLambda::bindVars(const StaticEnv & env)
newEnv.sort(); newEnv.sort();
for (auto & i : formals->formals) for (auto & i : formals->formals)
if (i.def) i.def->bindVars(newEnv); if (i.def) i.def->bindVars(pt, newEnv);
} }
body->bindVars(newEnv); body->bindVars(pt, newEnv);
} }
void ExprCall::bindVars(const StaticEnv & env) void ExprCall::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
fun->bindVars(env); fun->bindVars(pt, env);
for (auto e : args) for (auto e : args)
e->bindVars(env); e->bindVars(pt, env);
} }
void ExprLet::bindVars(const StaticEnv & env) void ExprLet::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
StaticEnv newEnv(false, &env, attrs->attrs.size()); StaticEnv newEnv(false, &env, attrs->attrs.size());
@ -401,12 +399,12 @@ void ExprLet::bindVars(const StaticEnv & env)
// No need to sort newEnv since attrs->attrs is in sorted order. // No need to sort newEnv since attrs->attrs is in sorted order.
for (auto & i : attrs->attrs) for (auto & i : attrs->attrs)
i.second.e->bindVars(i.second.inherited ? env : newEnv); i.second.e->bindVars(pt, i.second.inherited ? env : newEnv);
body->bindVars(newEnv); body->bindVars(pt, newEnv);
} }
void ExprWith::bindVars(const StaticEnv & env) void ExprWith::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
/* Does this `with' have an enclosing `with'? If so, record its /* Does this `with' have an enclosing `with'? If so, record its
level so that `lookupVar' can look up variables in the previous level so that `lookupVar' can look up variables in the previous
@ -420,36 +418,36 @@ void ExprWith::bindVars(const StaticEnv & env)
break; break;
} }
attrs->bindVars(env); attrs->bindVars(pt, env);
StaticEnv newEnv(true, &env); StaticEnv newEnv(true, &env);
body->bindVars(newEnv); body->bindVars(pt, newEnv);
} }
void ExprIf::bindVars(const StaticEnv & env) void ExprIf::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
cond->bindVars(env); cond->bindVars(pt, env);
then->bindVars(env); then->bindVars(pt, env);
else_->bindVars(env); else_->bindVars(pt, env);
} }
void ExprAssert::bindVars(const StaticEnv & env) void ExprAssert::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
cond->bindVars(env); cond->bindVars(pt, env);
body->bindVars(env); body->bindVars(pt, env);
} }
void ExprOpNot::bindVars(const StaticEnv & env) void ExprOpNot::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
e->bindVars(env); e->bindVars(pt, env);
} }
void ExprConcatStrings::bindVars(const StaticEnv & env) void ExprConcatStrings::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
for (auto & i : *es) for (auto & i : *es)
i.second->bindVars(env); i.second->bindVars(pt, env);
} }
void ExprPos::bindVars(const StaticEnv & env) void ExprPos::bindVars(const PosTable & pt, const StaticEnv & env)
{ {
} }
@ -468,9 +466,9 @@ void ExprLambda::setName(Symbol & name)
} }
std::string ExprLambda::showNamePos() const std::string ExprLambda::showNamePos(const PosTable & pt) const
{ {
return fmt("%1% at %2%", name.set() ? "'" + (std::string) name + "'" : "anonymous function", pos); return fmt("%1% at %2%", name.set() ? "'" + (std::string) name + "'" : "anonymous function", pt[pos]);
} }

169
src/libexpr/nixexpr.hh
View file

@ -1,5 +1,8 @@
#pragma once #pragma once
#include <map>
#include <vector>
#include "value.hh" #include "value.hh"
#include "symbol-table.hh" #include "symbol-table.hh"
#include "error.hh" #include "error.hh"
@ -24,31 +27,91 @@ MakeError(RestrictedPathError, Error);
struct Pos struct Pos
{ {
Symbol file; Symbol file;
FileOrigin origin;
uint32_t line; uint32_t line;
FileOrigin origin:2; uint32_t column;
uint32_t column:30;
Pos() : line(0), origin(foString), column(0) { }; explicit operator bool() const { return line > 0; }
Pos(FileOrigin origin, const Symbol & file, uint32_t line, uint32_t column) };
: file(file), line(line), origin(origin), column(column) { };
operator bool() const class PosIdx {
friend class PosTable;
private:
uint32_t id;
explicit PosIdx(uint32_t id): id(id) {}
public:
PosIdx() : id(0) {}
explicit operator bool() const { return id > 0; }
bool operator<(const PosIdx other) const { return id < other.id; }
};
class PosTable
{
public:
class Origin {
friend PosTable;
private:
// must always be invalid by default, add() replaces this with the actual value.
// subsequent add() calls use this index as a token to quickly check whether the
// current origins.back() can be reused or not.
mutable uint32_t idx = std::numeric_limits<uint32_t>::max();
explicit Origin(uint32_t idx): idx(idx), file{}, origin{} {}
public:
const Symbol file;
const FileOrigin origin;
Origin(Symbol file, FileOrigin origin): file(file), origin(origin) {}
};
struct Offset {
uint32_t line, column;
};
private:
std::vector<Origin> origins;
ChunkedVector<Offset, 8192> offsets;
public:
PosTable(): offsets(1024)
{ {
return line != 0; origins.reserve(1024);
} }
bool operator < (const Pos & p2) const PosIdx add(const Origin & origin, uint32_t line, uint32_t column)
{ {
if (!line) return p2.line; const auto idx = offsets.add({line, column}).second;
if (!p2.line) return false; if (origins.empty() || origins.back().idx != origin.idx) {
int d = ((const std::string &) file).compare((const std::string &) p2.file); origin.idx = idx;
if (d < 0) return true; origins.push_back(origin);
if (d > 0) return false; }
if (line < p2.line) return true; return PosIdx(idx + 1);
if (line > p2.line) return false; }
return column < p2.column;
Pos operator[](PosIdx p) const
{
if (p.id == 0 || p.id > offsets.size())
return {};
const auto idx = p.id - 1;
/* we want the last key <= idx, so we'll take prev(first key > idx).
this is guaranteed to never rewind origin.begin because the first
key is always 0. */
const auto pastOrigin = std::upper_bound(
origins.begin(), origins.end(), Origin(idx),
[] (const auto & a, const auto & b) { return a.idx < b.idx; });
const auto origin = *std::prev(pastOrigin);
const auto offset = offsets[idx];
return {origin.file, origin.origin, offset.line, offset.column};
} }
}; };
extern Pos noPos; inline PosIdx noPos = {};
std::ostream & operator << (std::ostream & str, const Pos & pos); std::ostream & operator << (std::ostream & str, const Pos & pos);
@ -79,7 +142,7 @@ struct Expr
{ {
virtual ~Expr() { }; virtual ~Expr() { };
virtual void show(std::ostream & str) const; virtual void show(std::ostream & str) const;
virtual void bindVars(const StaticEnv & env); virtual void bindVars(const PosTable & pt, const StaticEnv & env);
virtual void eval(EvalState & state, Env & env, Value & v); virtual void eval(EvalState & state, Env & env, Value & v);
virtual Value * maybeThunk(EvalState & state, Env & env); virtual Value * maybeThunk(EvalState & state, Env & env);
virtual void setName(Symbol & name); virtual void setName(Symbol & name);
@ -90,7 +153,7 @@ std::ostream & operator << (std::ostream & str, const Expr & e);
#define COMMON_METHODS \ #define COMMON_METHODS \
void show(std::ostream & str) const; \ void show(std::ostream & str) const; \
void eval(EvalState & state, Env & env, Value & v); \ void eval(EvalState & state, Env & env, Value & v); \
void bindVars(const StaticEnv & env); void bindVars(const PosTable & pt, const StaticEnv & env);
struct ExprInt : Expr struct ExprInt : Expr
{ {
@ -133,7 +196,7 @@ typedef uint32_t Displacement;
struct ExprVar : Expr struct ExprVar : Expr
{ {
Pos pos; PosIdx pos;
Symbol name; Symbol name;
/* Whether the variable comes from an environment (e.g. a rec, let /* Whether the variable comes from an environment (e.g. a rec, let
@ -150,18 +213,18 @@ struct ExprVar : Expr
Displacement displ; Displacement displ;
ExprVar(const Symbol & name) : name(name) { }; ExprVar(const Symbol & name) : name(name) { };
ExprVar(const Pos & pos, const Symbol & name) : pos(pos), name(name) { }; ExprVar(const PosIdx & pos, const Symbol & name) : pos(pos), name(name) { };
COMMON_METHODS COMMON_METHODS
Value * maybeThunk(EvalState & state, Env & env); Value * maybeThunk(EvalState & state, Env & env);
}; };
struct ExprSelect : Expr struct ExprSelect : Expr
{ {
Pos pos; PosIdx pos;
Expr * e, * def; Expr * e, * def;
AttrPath attrPath; AttrPath attrPath;
ExprSelect(const Pos & pos, Expr * e, const AttrPath & attrPath, Expr * def) : pos(pos), e(e), def(def), attrPath(attrPath) { }; ExprSelect(const PosIdx & pos, Expr * e, const AttrPath & attrPath, Expr * def) : pos(pos), e(e), def(def), attrPath(attrPath) { };
ExprSelect(const Pos & pos, Expr * e, const Symbol & name) : pos(pos), e(e), def(0) { attrPath.push_back(AttrName(name)); }; ExprSelect(const PosIdx & pos, Expr * e, const Symbol & name) : pos(pos), e(e), def(0) { attrPath.push_back(AttrName(name)); };
COMMON_METHODS COMMON_METHODS
}; };
@ -176,13 +239,13 @@ struct ExprOpHasAttr : Expr
struct ExprAttrs : Expr struct ExprAttrs : Expr
{ {
bool recursive; bool recursive;
Pos pos; PosIdx pos;
struct AttrDef { struct AttrDef {
bool inherited; bool inherited;
Expr * e; Expr * e;
Pos pos; PosIdx pos;
Displacement displ; // displacement Displacement displ; // displacement
AttrDef(Expr * e, const Pos & pos, bool inherited=false) AttrDef(Expr * e, const PosIdx & pos, bool inherited=false)
: inherited(inherited), e(e), pos(pos) { }; : inherited(inherited), e(e), pos(pos) { };
AttrDef() { }; AttrDef() { };
}; };
@ -190,14 +253,14 @@ struct ExprAttrs : Expr
AttrDefs attrs; AttrDefs attrs;
struct DynamicAttrDef { struct DynamicAttrDef {
Expr * nameExpr, * valueExpr; Expr * nameExpr, * valueExpr;
Pos pos; PosIdx pos;
DynamicAttrDef(Expr * nameExpr, Expr * valueExpr, const Pos & pos) DynamicAttrDef(Expr * nameExpr, Expr * valueExpr, const PosIdx & pos)
: nameExpr(nameExpr), valueExpr(valueExpr), pos(pos) { }; : nameExpr(nameExpr), valueExpr(valueExpr), pos(pos) { };
}; };
typedef std::vector<DynamicAttrDef> DynamicAttrDefs; typedef std::vector<DynamicAttrDef> DynamicAttrDefs;
DynamicAttrDefs dynamicAttrs; DynamicAttrDefs dynamicAttrs;
ExprAttrs(const Pos &pos) : recursive(false), pos(pos) { }; ExprAttrs(const PosIdx &pos) : recursive(false), pos(pos) { };
ExprAttrs() : recursive(false), pos(noPos) { }; ExprAttrs() : recursive(false) { };
COMMON_METHODS COMMON_METHODS
}; };
@ -210,10 +273,10 @@ struct ExprList : Expr
struct Formal struct Formal
{ {
Pos pos; PosIdx pos;
Symbol name; Symbol name;
Expr * def; Expr * def;
Formal(const Pos & pos, const Symbol & name, Expr * def) : pos(pos), name(name), def(def) { }; Formal(const PosIdx & pos, const Symbol & name, Expr * def) : pos(pos), name(name), def(def) { };
}; };
struct Formals struct Formals
@ -241,17 +304,17 @@ struct Formals
struct ExprLambda : Expr struct ExprLambda : Expr
{ {
Pos pos; PosIdx pos;
Symbol name; Symbol name;
Symbol arg; Symbol arg;
Formals * formals; Formals * formals;
Expr * body; Expr * body;
ExprLambda(const Pos & pos, const Symbol & arg, Formals * formals, Expr * body) ExprLambda(const PosIdx & pos, const Symbol & arg, Formals * formals, Expr * body)
: pos(pos), arg(arg), formals(formals), body(body) : pos(pos), arg(arg), formals(formals), body(body)
{ {
}; };
void setName(Symbol & name); void setName(Symbol & name);
std::string showNamePos() const; std::string showNamePos(const PosTable & pt) const;
inline bool hasFormals() const { return formals != nullptr; } inline bool hasFormals() const { return formals != nullptr; }
COMMON_METHODS COMMON_METHODS
}; };
@ -260,8 +323,8 @@ struct ExprCall : Expr
{ {
Expr * fun; Expr * fun;
std::vector<Expr *> args; std::vector<Expr *> args;
Pos pos; PosIdx pos;
ExprCall(const Pos & pos, Expr * fun, std::vector<Expr *> && args) ExprCall(const PosIdx & pos, Expr * fun, std::vector<Expr *> && args)
: fun(fun), args(args), pos(pos) : fun(fun), args(args), pos(pos)
{ } { }
COMMON_METHODS COMMON_METHODS
@ -277,26 +340,26 @@ struct ExprLet : Expr
struct ExprWith : Expr struct ExprWith : Expr
{ {
Pos pos; PosIdx pos;
Expr * attrs, * body; Expr * attrs, * body;
size_t prevWith; size_t prevWith;
ExprWith(const Pos & pos, Expr * attrs, Expr * body) : pos(pos), attrs(attrs), body(body) { }; ExprWith(const PosIdx & pos, Expr * attrs, Expr * body) : pos(pos), attrs(attrs), body(body) { };
COMMON_METHODS COMMON_METHODS
}; };
struct ExprIf : Expr struct ExprIf : Expr
{ {
Pos pos; PosIdx pos;
Expr * cond, * then, * else_; Expr * cond, * then, * else_;
ExprIf(const Pos & pos, Expr * cond, Expr * then, Expr * else_) : pos(pos), cond(cond), then(then), else_(else_) { }; ExprIf(const PosIdx & pos, Expr * cond, Expr * then, Expr * else_) : pos(pos), cond(cond), then(then), else_(else_) { };
COMMON_METHODS COMMON_METHODS
}; };
struct ExprAssert : Expr struct ExprAssert : Expr
{ {
Pos pos; PosIdx pos;
Expr * cond, * body; Expr * cond, * body;
ExprAssert(const Pos & pos, Expr * cond, Expr * body) : pos(pos), cond(cond), body(body) { }; ExprAssert(const PosIdx & pos, Expr * cond, Expr * body) : pos(pos), cond(cond), body(body) { };
COMMON_METHODS COMMON_METHODS
}; };
@ -310,17 +373,17 @@ struct ExprOpNot : Expr
#define MakeBinOp(name, s) \ #define MakeBinOp(name, s) \
struct name : Expr \ struct name : Expr \
{ \ { \
Pos pos; \ PosIdx pos; \
Expr * e1, * e2; \ Expr * e1, * e2; \
name(Expr * e1, Expr * e2) : e1(e1), e2(e2) { }; \ name(Expr * e1, Expr * e2) : e1(e1), e2(e2) { }; \
name(const Pos & pos, Expr * e1, Expr * e2) : pos(pos), e1(e1), e2(e2) { }; \ name(const PosIdx & pos, Expr * e1, Expr * e2) : pos(pos), e1(e1), e2(e2) { }; \
void show(std::ostream & str) const \ void show(std::ostream & str) const \
{ \ { \
str << "(" << *e1 << " " s " " << *e2 << ")"; \ str << "(" << *e1 << " " s " " << *e2 << ")"; \
} \ } \
void bindVars(const StaticEnv & env) \ void bindVars(const PosTable & pt, const StaticEnv & env) \
{ \ { \
e1->bindVars(env); e2->bindVars(env); \ e1->bindVars(pt, env); e2->bindVars(pt, env); \
} \ } \
void eval(EvalState & state, Env & env, Value & v); \ void eval(EvalState & state, Env & env, Value & v); \
}; };
@ -335,18 +398,18 @@ MakeBinOp(ExprOpConcatLists, "++")
struct ExprConcatStrings : Expr struct ExprConcatStrings : Expr
{ {
Pos pos; PosIdx pos;
bool forceString; bool forceString;
std::vector<std::pair<Pos, Expr *> > * es; std::vector<std::pair<PosIdx, Expr *> > * es;
ExprConcatStrings(const Pos & pos, bool forceString, std::vector<std::pair<Pos, Expr *> > * es) ExprConcatStrings(const PosIdx & pos, bool forceString, std::vector<std::pair<PosIdx, Expr *> > * es)
: pos(pos), forceString(forceString), es(es) { }; : pos(pos), forceString(forceString), es(es) { };
COMMON_METHODS COMMON_METHODS
}; };
struct ExprPos : Expr struct ExprPos : Expr
{ {
Pos pos; PosIdx pos;
ExprPos(const Pos & pos) : pos(pos) { }; ExprPos(const PosIdx & pos) : pos(pos) { };
COMMON_METHODS COMMON_METHODS
}; };

78
src/libexpr/parser.y
View file

@ -32,12 +32,12 @@ namespace nix {
SymbolTable & symbols; SymbolTable & symbols;
Expr * result; Expr * result;
Path basePath; Path basePath;
Symbol file; PosTable::Origin origin;
FileOrigin origin;
std::optional<ErrorInfo> error; std::optional<ErrorInfo> error;
ParseData(EvalState & state) ParseData(EvalState & state, PosTable::Origin origin)
: state(state) : state(state)
, symbols(state.symbols) , symbols(state.symbols)
, origin(std::move(origin))
{ }; { };
}; };
@ -96,7 +96,7 @@ static void dupAttr(Symbol attr, const Pos & pos, const Pos & prevPos)
static void addAttr(ExprAttrs * attrs, AttrPath & attrPath, static void addAttr(ExprAttrs * attrs, AttrPath & attrPath,
Expr * e, const Pos & pos) Expr * e, const PosIdx pos, const nix::PosTable & pt)
{ {
AttrPath::iterator i; AttrPath::iterator i;
// All attrpaths have at least one attr // All attrpaths have at least one attr
@ -109,10 +109,10 @@ static void addAttr(ExprAttrs * attrs, AttrPath & attrPath,
if (j != attrs->attrs.end()) { if (j != attrs->attrs.end()) {
if (!j->second.inherited) { if (!j->second.inherited) {
ExprAttrs * attrs2 = dynamic_cast<ExprAttrs *>(j->second.e); ExprAttrs * attrs2 = dynamic_cast<ExprAttrs *>(j->second.e);
if (!attrs2) dupAttr(attrPath, pos, j->second.pos); if (!attrs2) dupAttr(attrPath, pt[pos], pt[j->second.pos]);
attrs = attrs2; attrs = attrs2;
} else } else
dupAttr(attrPath, pos, j->second.pos); dupAttr(attrPath, pt[pos], pt[j->second.pos]);
} else { } else {
ExprAttrs * nested = new ExprAttrs; ExprAttrs * nested = new ExprAttrs;
attrs->attrs[i->symbol] = ExprAttrs::AttrDef(nested, pos); attrs->attrs[i->symbol] = ExprAttrs::AttrDef(nested, pos);
@ -139,11 +139,11 @@ static void addAttr(ExprAttrs * attrs, AttrPath & attrPath,
for (auto & ad : ae->attrs) { for (auto & ad : ae->attrs) {
auto j2 = jAttrs->attrs.find(ad.first); auto j2 = jAttrs->attrs.find(ad.first);
if (j2 != jAttrs->attrs.end()) // Attr already defined in iAttrs, error. if (j2 != jAttrs->attrs.end()) // Attr already defined in iAttrs, error.
dupAttr(ad.first, j2->second.pos, ad.second.pos); dupAttr(ad.first, pt[j2->second.pos], pt[ad.second.pos]);
jAttrs->attrs.emplace(ad.first, ad.second); jAttrs->attrs.emplace(ad.first, ad.second);
} }
} else { } else {
dupAttr(attrPath, pos, j->second.pos); dupAttr(attrPath, pt[pos], pt[j->second.pos]);
} }
} else { } else {
// This attr path is not defined. Let's create it. // This attr path is not defined. Let's create it.
@ -157,14 +157,14 @@ static void addAttr(ExprAttrs * attrs, AttrPath & attrPath,
static Formals * toFormals(ParseData & data, ParserFormals * formals, static Formals * toFormals(ParseData & data, ParserFormals * formals,
Pos pos = noPos, Symbol arg = {}) PosIdx pos = noPos, Symbol arg = {})
{ {
std::sort(formals->formals.begin(), formals->formals.end(), std::sort(formals->formals.begin(), formals->formals.end(),
[] (const auto & a, const auto & b) { [] (const auto & a, const auto & b) {
return std::tie(a.name, a.pos) < std::tie(b.name, b.pos); return std::tie(a.name, a.pos) < std::tie(b.name, b.pos);
}); });
std::optional<std::pair<Symbol, Pos>> duplicate; std::optional<std::pair<Symbol, PosIdx>> duplicate;
for (size_t i = 0; i + 1 < formals->formals.size(); i++) { for (size_t i = 0; i + 1 < formals->formals.size(); i++) {
if (formals->formals[i].name != formals->formals[i + 1].name) if (formals->formals[i].name != formals->formals[i + 1].name)
continue; continue;
@ -174,7 +174,7 @@ static Formals * toFormals(ParseData & data, ParserFormals * formals,
if (duplicate) if (duplicate)
throw ParseError({ throw ParseError({
.msg = hintfmt("duplicate formal function argument '%1%'", duplicate->first), .msg = hintfmt("duplicate formal function argument '%1%'", duplicate->first),
.errPos = duplicate->second .errPos = data.state.positions[duplicate->second]
}); });
Formals result; Formals result;
@ -184,7 +184,7 @@ static Formals * toFormals(ParseData & data, ParserFormals * formals,
if (arg.set() && result.has(arg)) if (arg.set() && result.has(arg))
throw ParseError({ throw ParseError({
.msg = hintfmt("duplicate formal function argument '%1%'", arg), .msg = hintfmt("duplicate formal function argument '%1%'", arg),
.errPos = pos .errPos = data.state.positions[pos]
}); });
delete formals; delete formals;
@ -192,8 +192,8 @@ static Formals * toFormals(ParseData & data, ParserFormals * formals,
} }
static Expr * stripIndentation(const Pos & pos, SymbolTable & symbols, static Expr * stripIndentation(const PosIdx pos, SymbolTable & symbols,
std::vector<std::pair<Pos, std::variant<Expr *, StringToken> > > & es) std::vector<std::pair<PosIdx, std::variant<Expr *, StringToken> > > & es)
{ {
if (es.empty()) return new ExprString(""); if (es.empty()) return new ExprString("");
@ -233,7 +233,7 @@ static Expr * stripIndentation(const Pos & pos, SymbolTable & symbols,
} }
/* Strip spaces from each line. */ /* Strip spaces from each line. */
std::vector<std::pair<Pos, Expr *> > * es2 = new std::vector<std::pair<Pos, Expr *> >; auto * es2 = new std::vector<std::pair<PosIdx, Expr *> >;
atStartOfLine = true; atStartOfLine = true;
size_t curDropped = 0; size_t curDropped = 0;
size_t n = es.size(); size_t n = es.size();
@ -284,9 +284,9 @@ static Expr * stripIndentation(const Pos & pos, SymbolTable & symbols,
} }
static inline Pos makeCurPos(const YYLTYPE & loc, ParseData * data) static inline PosIdx makeCurPos(const YYLTYPE & loc, ParseData * data)
{ {
return Pos(data->origin, data->file, loc.first_line, loc.first_column); return data->state.positions.add(data->origin, loc.first_line, loc.first_column);
} }
#define CUR_POS makeCurPos(*yylocp, data) #define CUR_POS makeCurPos(*yylocp, data)
@ -299,7 +299,7 @@ void yyerror(YYLTYPE * loc, yyscan_t scanner, ParseData * data, const char * err
{ {
data->error = { data->error = {
.msg = hintfmt(error), .msg = hintfmt(error),
.errPos = makeCurPos(*loc, data) .errPos = data->state.positions[makeCurPos(*loc, data)]
}; };
} }
@ -320,8 +320,8 @@ void yyerror(YYLTYPE * loc, yyscan_t scanner, ParseData * data, const char * err
StringToken uri; StringToken uri;
StringToken str; StringToken str;
std::vector<nix::AttrName> * attrNames; std::vector<nix::AttrName> * attrNames;
std::vector<std::pair<nix::Pos, nix::Expr *> > * string_parts; std::vector<std::pair<nix::PosIdx, nix::Expr *> > * string_parts;
std::vector<std::pair<nix::Pos, std::variant<nix::Expr *, StringToken> > > * ind_string_parts; std::vector<std::pair<nix::PosIdx, std::variant<nix::Expr *, StringToken> > > * ind_string_parts;
} }
%type <e> start expr expr_function expr_if expr_op %type <e> start expr expr_function expr_if expr_op
@ -388,7 +388,7 @@ expr_function
{ if (!$2->dynamicAttrs.empty()) { if (!$2->dynamicAttrs.empty())
throw ParseError({ throw ParseError({
.msg = hintfmt("dynamic attributes not allowed in let"), .msg = hintfmt("dynamic attributes not allowed in let"),
.errPos = CUR_POS .errPos = data->state.positions[CUR_POS]
}); });
$$ = new ExprLet($2, $4); $$ = new ExprLet($2, $4);
} }
@ -415,7 +415,7 @@ expr_op
| expr_op UPDATE expr_op { $$ = new ExprOpUpdate(CUR_POS, $1, $3); } | expr_op UPDATE expr_op { $$ = new ExprOpUpdate(CUR_POS, $1, $3); }
| expr_op '?' attrpath { $$ = new ExprOpHasAttr($1, *$3); } | expr_op '?' attrpath { $$ = new ExprOpHasAttr($1, *$3); }
| expr_op '+' expr_op | expr_op '+' expr_op
{ $$ = new ExprConcatStrings(CUR_POS, false, new std::vector<std::pair<Pos, Expr *> >({{makeCurPos(@1, data), $1}, {makeCurPos(@3, data), $3}})); } { $$ = new ExprConcatStrings(CUR_POS, false, new std::vector<std::pair<PosIdx, Expr *> >({{makeCurPos(@1, data), $1}, {makeCurPos(@3, data), $3}})); }
| expr_op '-' expr_op { $$ = new ExprCall(CUR_POS, new ExprVar(data->symbols.create("__sub")), {$1, $3}); } | expr_op '-' expr_op { $$ = new ExprCall(CUR_POS, new ExprVar(data->symbols.create("__sub")), {$1, $3}); }
| expr_op '*' expr_op { $$ = new ExprCall(CUR_POS, new ExprVar(data->symbols.create("__mul")), {$1, $3}); } | expr_op '*' expr_op { $$ = new ExprCall(CUR_POS, new ExprVar(data->symbols.create("__mul")), {$1, $3}); }
| expr_op '/' expr_op { $$ = new ExprCall(CUR_POS, new ExprVar(data->symbols.create("__div")), {$1, $3}); } | expr_op '/' expr_op { $$ = new ExprCall(CUR_POS, new ExprVar(data->symbols.create("__div")), {$1, $3}); }
@ -477,7 +477,7 @@ expr_simple
if (noURLLiterals) if (noURLLiterals)
throw ParseError({ throw ParseError({
.msg = hintfmt("URL literals are disabled"), .msg = hintfmt("URL literals are disabled"),
.errPos = CUR_POS .errPos = data->state.positions[CUR_POS]
}); });
$$ = new ExprString(std::string($1)); $$ = new ExprString(std::string($1));
} }
@ -503,9 +503,9 @@ string_parts_interpolated
: string_parts_interpolated STR : string_parts_interpolated STR
{ $$ = $1; $1->emplace_back(makeCurPos(@2, data), new ExprString(std::string($2))); } { $$ = $1; $1->emplace_back(makeCurPos(@2, data), new ExprString(std::string($2))); }
| string_parts_interpolated DOLLAR_CURLY expr '}' { $$ = $1; $1->emplace_back(makeCurPos(@2, data), $3); } | string_parts_interpolated DOLLAR_CURLY expr '}' { $$ = $1; $1->emplace_back(makeCurPos(@2, data), $3); }
| DOLLAR_CURLY expr '}' { $$ = new std::vector<std::pair<Pos, Expr *> >; $$->emplace_back(makeCurPos(@1, data), $2); } | DOLLAR_CURLY expr '}' { $$ = new std::vector<std::pair<PosIdx, Expr *> >; $$->emplace_back(makeCurPos(@1, data), $2); }
| STR DOLLAR_CURLY expr '}' { | STR DOLLAR_CURLY expr '}' {
$$ = new std::vector<std::pair<Pos, Expr *> >; $$ = new std::vector<std::pair<PosIdx, Expr *> >;
$$->emplace_back(makeCurPos(@1, data), new ExprString(std::string($1))); $$->emplace_back(makeCurPos(@1, data), new ExprString(std::string($1)));
$$->emplace_back(makeCurPos(@2, data), $3); $$->emplace_back(makeCurPos(@2, data), $3);
} }
@ -528,17 +528,18 @@ path_start
ind_string_parts ind_string_parts
: ind_string_parts IND_STR { $$ = $1; $1->emplace_back(makeCurPos(@2, data), $2); } : ind_string_parts IND_STR { $$ = $1; $1->emplace_back(makeCurPos(@2, data), $2); }
| ind_string_parts DOLLAR_CURLY expr '}' { $$ = $1; $1->emplace_back(makeCurPos(@2, data), $3); } | ind_string_parts DOLLAR_CURLY expr '}' { $$ = $1; $1->emplace_back(makeCurPos(@2, data), $3); }
| { $$ = new std::vector<std::pair<Pos, std::variant<Expr *, StringToken> > >; } | { $$ = new std::vector<std::pair<PosIdx, std::variant<Expr *, StringToken> > >; }
; ;
binds binds
: binds attrpath '=' expr ';' { $$ = $1; addAttr($$, *$2, $4, makeCurPos(@2, data)); } : binds attrpath '=' expr ';' { $$ = $1; addAttr($$, *$2, $4, makeCurPos(@2, data), data->state.positions); }
| binds INHERIT attrs ';' | binds INHERIT attrs ';'
{ $$ = $1; { $$ = $1;
for (auto & i : *$3) { for (auto & i : *$3) {
if ($$->attrs.find(i.symbol) != $$->attrs.end()) if ($$->attrs.find(i.symbol) != $$->attrs.end())
dupAttr(i.symbol, makeCurPos(@3, data), $$->attrs[i.symbol].pos); dupAttr(i.symbol, data->state.positions[makeCurPos(@3, data)],
Pos pos = makeCurPos(@3, data); data->state.positions[$$->attrs[i.symbol].pos]);
auto pos = makeCurPos(@3, data);
$$->attrs.emplace(i.symbol, ExprAttrs::AttrDef(new ExprVar(CUR_POS, i.symbol), pos, true)); $$->attrs.emplace(i.symbol, ExprAttrs::AttrDef(new ExprVar(CUR_POS, i.symbol), pos, true));
} }
} }
@ -547,7 +548,8 @@ binds
/* !!! Should ensure sharing of the expression in $4. */ /* !!! Should ensure sharing of the expression in $4. */
for (auto & i : *$6) { for (auto & i : *$6) {
if ($$->attrs.find(i.symbol) != $$->attrs.end()) if ($$->attrs.find(i.symbol) != $$->attrs.end())
dupAttr(i.symbol, makeCurPos(@6, data), $$->attrs[i.symbol].pos); dupAttr(i.symbol, data->state.positions[makeCurPos(@6, data)],
data->state.positions[$$->attrs[i.symbol].pos]);
$$->attrs.emplace(i.symbol, ExprAttrs::AttrDef(new ExprSelect(CUR_POS, $4, i.symbol), makeCurPos(@6, data))); $$->attrs.emplace(i.symbol, ExprAttrs::AttrDef(new ExprSelect(CUR_POS, $4, i.symbol), makeCurPos(@6, data)));
} }
} }
@ -565,7 +567,7 @@ attrs
} else } else
throw ParseError({ throw ParseError({
.msg = hintfmt("dynamic attributes not allowed in inherit"), .msg = hintfmt("dynamic attributes not allowed in inherit"),
.errPos = makeCurPos(@2, data) .errPos = data->state.positions[makeCurPos(@2, data)]
}); });
} }
| { $$ = new AttrPath; } | { $$ = new AttrPath; }
@ -646,19 +648,19 @@ Expr * EvalState::parse(char * text, size_t length, FileOrigin origin,
const PathView path, const PathView basePath, StaticEnv & staticEnv) const PathView path, const PathView basePath, StaticEnv & staticEnv)
{ {
yyscan_t scanner; yyscan_t scanner;
ParseData data(*this); Symbol file;
data.origin = origin;
switch (origin) { switch (origin) {
case foFile: case foFile:
data.file = data.symbols.create(path); file = symbols.create(path);
break; break;
case foStdin: case foStdin:
case foString: case foString:
data.file = data.symbols.create(text); file = symbols.create(text);
break; break;
default: default:
assert(false); assert(false);
} }
ParseData data(*this, {file, origin});
data.basePath = basePath; data.basePath = basePath;
yylex_init(&scanner); yylex_init(&scanner);
@ -668,7 +670,7 @@ Expr * EvalState::parse(char * text, size_t length, FileOrigin origin,
if (res) throw ParseError(data.error.value()); if (res) throw ParseError(data.error.value());
data.result->bindVars(staticEnv); data.result->bindVars(positions, staticEnv);
return data.result; return data.result;
} }
@ -760,7 +762,7 @@ Path EvalState::findFile(const std::string_view path)
} }
Path EvalState::findFile(SearchPath & searchPath, const std::string_view path, const Pos & pos) Path EvalState::findFile(SearchPath & searchPath, const std::string_view path, const PosIdx pos)
{ {
for (auto & i : searchPath) { for (auto & i : searchPath) {
std::string suffix; std::string suffix;
@ -787,7 +789,7 @@ Path EvalState::findFile(SearchPath & searchPath, const std::string_view path, c
? "cannot look up '<%s>' in pure evaluation mode (use '--impure' to override)" ? "cannot look up '<%s>' in pure evaluation mode (use '--impure' to override)"
: "file '%s' was not found in the Nix search path (add it using $NIX_PATH or -I)", : "file '%s' was not found in the Nix search path (add it using $NIX_PATH or -I)",
path), path),
.errPos = pos .errPos = positions[pos]
}); });
} }

309
src/libexpr/primops.cc
View file

File diff suppressed because it is too large Load diff

4
src/libexpr/primops.hh
View file

@ -38,9 +38,9 @@ struct RegisterPrimOp
them. */ them. */
/* Load a ValueInitializer from a DSO and return whatever it initializes */ /* Load a ValueInitializer from a DSO and return whatever it initializes */
void prim_importNative(EvalState & state, const Pos & pos, Value * * args, Value & v); void prim_importNative(EvalState & state, const PosIdx pos, Value * * args, Value & v);
/* Execute a program and parse its output */ /* Execute a program and parse its output */
void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v); void prim_exec(EvalState & state, const PosIdx pos, Value * * args, Value & v);
} }

26
src/libexpr/primops/context.cc
View file

@ -5,7 +5,7 @@
namespace nix { namespace nix {
static void prim_unsafeDiscardStringContext(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_unsafeDiscardStringContext(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
PathSet context; PathSet context;
auto s = state.coerceToString(pos, *args[0], context); auto s = state.coerceToString(pos, *args[0], context);
@ -15,7 +15,7 @@ static void prim_unsafeDiscardStringContext(EvalState & state, const Pos & pos,
static RegisterPrimOp primop_unsafeDiscardStringContext("__unsafeDiscardStringContext", 1, prim_unsafeDiscardStringContext); static RegisterPrimOp primop_unsafeDiscardStringContext("__unsafeDiscardStringContext", 1, prim_unsafeDiscardStringContext);
static void prim_hasContext(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_hasContext(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
PathSet context; PathSet context;
state.forceString(*args[0], context, pos); state.forceString(*args[0], context, pos);
@ -31,7 +31,7 @@ static RegisterPrimOp primop_hasContext("__hasContext", 1, prim_hasContext);
source-only deployment). This primop marks the string context so source-only deployment). This primop marks the string context so
that builtins.derivation adds the path to drv.inputSrcs rather than that builtins.derivation adds the path to drv.inputSrcs rather than
drv.inputDrvs. */ drv.inputDrvs. */
static void prim_unsafeDiscardOutputDependency(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_unsafeDiscardOutputDependency(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
PathSet context; PathSet context;
auto s = state.coerceToString(pos, *args[0], context); auto s = state.coerceToString(pos, *args[0], context);
@ -65,7 +65,7 @@ static RegisterPrimOp primop_unsafeDiscardOutputDependency("__unsafeDiscardOutpu
Note that for a given path any combination of the above attributes Note that for a given path any combination of the above attributes
may be present. may be present.
*/ */
static void prim_getContext(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_getContext(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
struct ContextInfo { struct ContextInfo {
bool path = false; bool path = false;
@ -134,7 +134,7 @@ static RegisterPrimOp primop_getContext("__getContext", 1, prim_getContext);
See the commentary above unsafeGetContext for details of the See the commentary above unsafeGetContext for details of the
context representation. context representation.
*/ */
static void prim_appendContext(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_appendContext(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
PathSet context; PathSet context;
auto orig = state.forceString(*args[0], context, pos); auto orig = state.forceString(*args[0], context, pos);
@ -147,24 +147,24 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
if (!state.store->isStorePath(i.name)) if (!state.store->isStorePath(i.name))
throw EvalError({ throw EvalError({
.msg = hintfmt("Context key '%s' is not a store path", i.name), .msg = hintfmt("Context key '%s' is not a store path", i.name),
.errPos = *i.pos .errPos = state.positions[i.pos]
}); });
if (!settings.readOnlyMode) if (!settings.readOnlyMode)
state.store->ensurePath(state.store->parseStorePath(i.name)); state.store->ensurePath(state.store->parseStorePath(i.name));
state.forceAttrs(*i.value, *i.pos); state.forceAttrs(*i.value, i.pos);
auto iter = i.value->attrs->find(sPath); auto iter = i.value->attrs->find(sPath);
if (iter != i.value->attrs->end()) { if (iter != i.value->attrs->end()) {
if (state.forceBool(*iter->value, *iter->pos)) if (state.forceBool(*iter->value, iter->pos))
context.insert(i.name); context.insert(i.name);
} }
iter = i.value->attrs->find(sAllOutputs); iter = i.value->attrs->find(sAllOutputs);
if (iter != i.value->attrs->end()) { if (iter != i.value->attrs->end()) {
if (state.forceBool(*iter->value, *iter->pos)) { if (state.forceBool(*iter->value, iter->pos)) {
if (!isDerivation(i.name)) { if (!isDerivation(i.name)) {
throw EvalError({ throw EvalError({
.msg = hintfmt("Tried to add all-outputs context of %s, which is not a derivation, to a string", i.name), .msg = hintfmt("Tried to add all-outputs context of %s, which is not a derivation, to a string", i.name),
.errPos = *i.pos .errPos = state.positions[i.pos]
}); });
} }
context.insert("=" + std::string(i.name)); context.insert("=" + std::string(i.name));
@ -173,15 +173,15 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
iter = i.value->attrs->find(state.sOutputs); iter = i.value->attrs->find(state.sOutputs);
if (iter != i.value->attrs->end()) { if (iter != i.value->attrs->end()) {
state.forceList(*iter->value, *iter->pos); state.forceList(*iter->value, iter->pos);
if (iter->value->listSize() && !isDerivation(i.name)) { if (iter->value->listSize() && !isDerivation(i.name)) {
throw EvalError({ throw EvalError({
.msg = hintfmt("Tried to add derivation output context of %s, which is not a derivation, to a string", i.name), .msg = hintfmt("Tried to add derivation output context of %s, which is not a derivation, to a string", i.name),
.errPos = *i.pos .errPos = state.positions[i.pos]
}); });
} }
for (auto elem : iter->value->listItems()) { for (auto elem : iter->value->listItems()) {
auto name = state.forceStringNoCtx(*elem, *iter->pos); auto name = state.forceStringNoCtx(*elem, iter->pos);
context.insert(concatStrings("!", name, "!", i.name)); context.insert(concatStrings("!", name, "!", i.name));
} }
} }

26
src/libexpr/primops/fetchClosure.cc
View file

@ -5,7 +5,7 @@
namespace nix { namespace nix {
static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_fetchClosure(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
state.forceAttrs(*args[0], pos); state.forceAttrs(*args[0], pos);
@ -17,38 +17,38 @@ static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args
for (auto & attr : *args[0]->attrs) { for (auto & attr : *args[0]->attrs) {
if (attr.name == "fromPath") { if (attr.name == "fromPath") {
PathSet context; PathSet context;
fromPath = state.coerceToStorePath(*attr.pos, *attr.value, context); fromPath = state.coerceToStorePath(attr.pos, *attr.value, context);
} }
else if (attr.name == "toPath") { else if (attr.name == "toPath") {
state.forceValue(*attr.value, *attr.pos); state.forceValue(*attr.value, attr.pos);
toCA = true; toCA = true;
if (attr.value->type() != nString || attr.value->string.s != std::string("")) { if (attr.value->type() != nString || attr.value->string.s != std::string("")) {
PathSet context; PathSet context;
toPath = state.coerceToStorePath(*attr.pos, *attr.value, context); toPath = state.coerceToStorePath(attr.pos, *attr.value, context);
} }
} }
else if (attr.name == "fromStore") else if (attr.name == "fromStore")
fromStoreUrl = state.forceStringNoCtx(*attr.value, *attr.pos); fromStoreUrl = state.forceStringNoCtx(*attr.value, attr.pos);
else else
throw Error({ throw Error({
.msg = hintfmt("attribute '%s' isn't supported in call to 'fetchClosure'", attr.name), .msg = hintfmt("attribute '%s' isn't supported in call to 'fetchClosure'", attr.name),
.errPos = pos .errPos = state.positions[pos]
}); });
} }
if (!fromPath) if (!fromPath)
throw Error({ throw Error({
.msg = hintfmt("attribute '%s' is missing in call to 'fetchClosure'", "fromPath"), .msg = hintfmt("attribute '%s' is missing in call to 'fetchClosure'", "fromPath"),
.errPos = pos .errPos = state.positions[pos]
}); });
if (!fromStoreUrl) if (!fromStoreUrl)
throw Error({ throw Error({
.msg = hintfmt("attribute '%s' is missing in call to 'fetchClosure'", "fromStore"), .msg = hintfmt("attribute '%s' is missing in call to 'fetchClosure'", "fromStore"),
.errPos = pos .errPos = state.positions[pos]
}); });
auto parsedURL = parseURL(*fromStoreUrl); auto parsedURL = parseURL(*fromStoreUrl);
@ -58,13 +58,13 @@ static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args
!(getEnv("_NIX_IN_TEST").has_value() && parsedURL.scheme == "file")) !(getEnv("_NIX_IN_TEST").has_value() && parsedURL.scheme == "file"))
throw Error({ throw Error({
.msg = hintfmt("'fetchClosure' only supports http:// and https:// stores"), .msg = hintfmt("'fetchClosure' only supports http:// and https:// stores"),
.errPos = pos .errPos = state.positions[pos]
}); });
if (!parsedURL.query.empty()) if (!parsedURL.query.empty())
throw Error({ throw Error({
.msg = hintfmt("'fetchClosure' does not support URL query parameters (in '%s')", *fromStoreUrl), .msg = hintfmt("'fetchClosure' does not support URL query parameters (in '%s')", *fromStoreUrl),
.errPos = pos .errPos = state.positions[pos]
}); });
auto fromStore = openStore(parsedURL.to_string()); auto fromStore = openStore(parsedURL.to_string());
@ -80,7 +80,7 @@ static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args
state.store->printStorePath(*fromPath), state.store->printStorePath(*fromPath),
state.store->printStorePath(i->second), state.store->printStorePath(i->second),
state.store->printStorePath(*toPath)), state.store->printStorePath(*toPath)),
.errPos = pos .errPos = state.positions[pos]
}); });
if (!toPath) if (!toPath)
throw Error({ throw Error({
@ -89,7 +89,7 @@ static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args
"please set this in the 'toPath' attribute passed to 'fetchClosure'", "please set this in the 'toPath' attribute passed to 'fetchClosure'",
state.store->printStorePath(*fromPath), state.store->printStorePath(*fromPath),
state.store->printStorePath(i->second)), state.store->printStorePath(i->second)),
.errPos = pos .errPos = state.positions[pos]
}); });
} }
} else { } else {
@ -105,7 +105,7 @@ static void prim_fetchClosure(EvalState & state, const Pos & pos, Value * * args
throw Error({ throw Error({
.msg = hintfmt("in pure mode, 'fetchClosure' requires a content-addressed path, which '%s' isn't", .msg = hintfmt("in pure mode, 'fetchClosure' requires a content-addressed path, which '%s' isn't",
state.store->printStorePath(*toPath)), state.store->printStorePath(*toPath)),
.errPos = pos .errPos = state.positions[pos]
}); });
} }

12
src/libexpr/primops/fetchMercurial.cc
View file

@ -7,7 +7,7 @@
namespace nix { namespace nix {
static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_fetchMercurial(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
std::string url; std::string url;
std::optional<Hash> rev; std::optional<Hash> rev;
@ -24,29 +24,29 @@ static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * ar
for (auto & attr : *args[0]->attrs) { for (auto & attr : *args[0]->attrs) {
std::string_view n(attr.name); std::string_view n(attr.name);
if (n == "url") if (n == "url")
url = state.coerceToString(*attr.pos, *attr.value, context, false, false).toOwned(); url = state.coerceToString(attr.pos, *attr.value, context, false, false).toOwned();
else if (n == "rev") { else if (n == "rev") {
// Ugly: unlike fetchGit, here the "rev" attribute can // Ugly: unlike fetchGit, here the "rev" attribute can
// be both a revision or a branch/tag name. // be both a revision or a branch/tag name.
auto value = state.forceStringNoCtx(*attr.value, *attr.pos); auto value = state.forceStringNoCtx(*attr.value, attr.pos);
if (std::regex_match(value.begin(), value.end(), revRegex)) if (std::regex_match(value.begin(), value.end(), revRegex))
rev = Hash::parseAny(value, htSHA1); rev = Hash::parseAny(value, htSHA1);
else else
ref = value; ref = value;
} }
else if (n == "name") else if (n == "name")
name = state.forceStringNoCtx(*attr.value, *attr.pos); name = state.forceStringNoCtx(*attr.value, attr.pos);
else else
throw EvalError({ throw EvalError({
.msg = hintfmt("unsupported argument '%s' to 'fetchMercurial'", attr.name), .msg = hintfmt("unsupported argument '%s' to 'fetchMercurial'", attr.name),
.errPos = *attr.pos .errPos = state.positions[attr.pos]
}); });
} }
if (url.empty()) if (url.empty())
throw EvalError({ throw EvalError({
.msg = hintfmt("'url' argument required"), .msg = hintfmt("'url' argument required"),
.errPos = pos .errPos = state.positions[pos]
}); });
} else } else

36
src/libexpr/primops/fetchTree.cc
View file

@ -90,7 +90,7 @@ struct FetchTreeParams {
static void fetchTree( static void fetchTree(
EvalState & state, EvalState & state,
const Pos & pos, const PosIdx pos,
Value * * args, Value * * args,
Value & v, Value & v,
std::optional<std::string> type, std::optional<std::string> type,
@ -110,22 +110,22 @@ static void fetchTree(
if (type) if (type)
throw Error({ throw Error({
.msg = hintfmt("unexpected attribute 'type'"), .msg = hintfmt("unexpected attribute 'type'"),
.errPos = pos .errPos = state.positions[pos]
}); });
type = state.forceStringNoCtx(*aType->value, *aType->pos); type = state.forceStringNoCtx(*aType->value, aType->pos);
} else if (!type) } else if (!type)
throw Error({ throw Error({
.msg = hintfmt("attribute 'type' is missing in call to 'fetchTree'"), .msg = hintfmt("attribute 'type' is missing in call to 'fetchTree'"),
.errPos = pos .errPos = state.positions[pos]
}); });
attrs.emplace("type", type.value()); attrs.emplace("type", type.value());
for (auto & attr : *args[0]->attrs) { for (auto & attr : *args[0]->attrs) {
if (attr.name == state.sType) continue; if (attr.name == state.sType) continue;
state.forceValue(*attr.value, *attr.pos); state.forceValue(*attr.value, attr.pos);
if (attr.value->type() == nPath || attr.value->type() == nString) { if (attr.value->type() == nPath || attr.value->type() == nString) {
auto s = state.coerceToString(*attr.pos, *attr.value, context, false, false).toOwned(); auto s = state.coerceToString(attr.pos, *attr.value, context, false, false).toOwned();
attrs.emplace(attr.name, attrs.emplace(attr.name,
attr.name == "url" attr.name == "url"
? type == "git" ? type == "git"
@ -146,7 +146,7 @@ static void fetchTree(
if (auto nameIter = attrs.find("name"); nameIter != attrs.end()) if (auto nameIter = attrs.find("name"); nameIter != attrs.end())
throw Error({ throw Error({
.msg = hintfmt("attribute 'name' isn't supported in call to 'fetchTree'"), .msg = hintfmt("attribute 'name' isn't supported in call to 'fetchTree'"),
.errPos = pos .errPos = state.positions[pos]
}); });
input = fetchers::Input::fromAttrs(std::move(attrs)); input = fetchers::Input::fromAttrs(std::move(attrs));
@ -167,7 +167,7 @@ static void fetchTree(
input = lookupInRegistries(state.store, input).first; input = lookupInRegistries(state.store, input).first;
if (evalSettings.pureEval && !input.isLocked()) if (evalSettings.pureEval && !input.isLocked())
throw Error("in pure evaluation mode, 'fetchTree' requires a locked input, at %s", pos); throw Error("in pure evaluation mode, 'fetchTree' requires a locked input, at %s", state.positions[pos]);
auto [tree, input2] = input.fetch(state.store); auto [tree, input2] = input.fetch(state.store);
@ -176,7 +176,7 @@ static void fetchTree(
emitTreeAttrs(state, tree, input2, v, params.emptyRevFallback, false); emitTreeAttrs(state, tree, input2, v, params.emptyRevFallback, false);
} }
static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_fetchTree(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
settings.requireExperimentalFeature(Xp::Flakes); settings.requireExperimentalFeature(Xp::Flakes);
fetchTree(state, pos, args, v, std::nullopt, FetchTreeParams { .allowNameArgument = false }); fetchTree(state, pos, args, v, std::nullopt, FetchTreeParams { .allowNameArgument = false });
@ -185,7 +185,7 @@ static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, V
// FIXME: document // FIXME: document
static RegisterPrimOp primop_fetchTree("fetchTree", 1, prim_fetchTree); static RegisterPrimOp primop_fetchTree("fetchTree", 1, prim_fetchTree);
static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v, static void fetch(EvalState & state, const PosIdx pos, Value * * args, Value & v,
const std::string & who, bool unpack, std::string name) const std::string & who, bool unpack, std::string name)
{ {
std::optional<std::string> url; std::optional<std::string> url;
@ -200,22 +200,22 @@ static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
for (auto & attr : *args[0]->attrs) { for (auto & attr : *args[0]->attrs) {
std::string n(attr.name); std::string n(attr.name);
if (n == "url") if (n == "url")
url = state.forceStringNoCtx(*attr.value, *attr.pos); url = state.forceStringNoCtx(*attr.value, attr.pos);
else if (n == "sha256") else if (n == "sha256")
expectedHash = newHashAllowEmpty(state.forceStringNoCtx(*attr.value, *attr.pos), htSHA256); expectedHash = newHashAllowEmpty(state.forceStringNoCtx(*attr.value, attr.pos), htSHA256);
else if (n == "name") else if (n == "name")
name = state.forceStringNoCtx(*attr.value, *attr.pos); name = state.forceStringNoCtx(*attr.value, attr.pos);
else else
throw EvalError({ throw EvalError({
.msg = hintfmt("unsupported argument '%s' to '%s'", attr.name, who), .msg = hintfmt("unsupported argument '%s' to '%s'", attr.name, who),
.errPos = *attr.pos .errPos = state.positions[attr.pos]
}); });
} }
if (!url) if (!url)
throw EvalError({ throw EvalError({
.msg = hintfmt("'url' argument required"), .msg = hintfmt("'url' argument required"),
.errPos = pos .errPos = state.positions[pos]
}); });
} else } else
url = state.forceStringNoCtx(*args[0], pos); url = state.forceStringNoCtx(*args[0], pos);
@ -262,7 +262,7 @@ static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
state.allowAndSetStorePathString(storePath, v); state.allowAndSetStorePathString(storePath, v);
} }
static void prim_fetchurl(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_fetchurl(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
fetch(state, pos, args, v, "fetchurl", false, ""); fetch(state, pos, args, v, "fetchurl", false, "");
} }
@ -278,7 +278,7 @@ static RegisterPrimOp primop_fetchurl({
.fun = prim_fetchurl, .fun = prim_fetchurl,
}); });
static void prim_fetchTarball(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_fetchTarball(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
fetch(state, pos, args, v, "fetchTarball", true, "source"); fetch(state, pos, args, v, "fetchTarball", true, "source");
} }
@ -329,7 +329,7 @@ static RegisterPrimOp primop_fetchTarball({
.fun = prim_fetchTarball, .fun = prim_fetchTarball,
}); });
static void prim_fetchGit(EvalState & state, const Pos & pos, Value * * args, Value & v) static void prim_fetchGit(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
fetchTree(state, pos, args, v, "git", FetchTreeParams { .emptyRevFallback = true, .allowNameArgument = true }); fetchTree(state, pos, args, v, "git", FetchTreeParams { .emptyRevFallback = true, .allowNameArgument = true });
} }

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

@ -5,7 +5,7 @@
namespace nix { namespace nix {
static void prim_fromTOML(EvalState & state, const Pos & pos, Value * * args, Value & val) static void prim_fromTOML(EvalState & state, const PosIdx pos, Value * * args, Value & val)
{ {
auto toml = state.forceStringNoCtx(*args[0], pos); auto toml = state.forceStringNoCtx(*args[0], pos);
@ -73,7 +73,7 @@ static void prim_fromTOML(EvalState & state, const Pos & pos, Value * * args, Va
} catch (std::exception & e) { // TODO: toml::syntax_error } catch (std::exception & e) { // TODO: toml::syntax_error
throw EvalError({ throw EvalError({
.msg = hintfmt("while parsing a TOML string: %s", e.what()), .msg = hintfmt("while parsing a TOML string: %s", e.what()),
.errPos = pos .errPos = state.positions[pos]
}); });
} }
} }

12
src/libexpr/value-to-json.cc
View file

@ -10,7 +10,7 @@
namespace nix { namespace nix {
void printValueAsJSON(EvalState & state, bool strict, void printValueAsJSON(EvalState & state, bool strict,
Value & v, const Pos & pos, JSONPlaceholder & out, PathSet & context) Value & v, const PosIdx pos, JSONPlaceholder & out, PathSet & context)
{ {
checkInterrupt(); checkInterrupt();
@ -54,10 +54,10 @@ void printValueAsJSON(EvalState & state, bool strict,
for (auto & j : names) { for (auto & j : names) {
Attr & a(*v.attrs->find(state.symbols.create(j))); Attr & a(*v.attrs->find(state.symbols.create(j)));
auto placeholder(obj.placeholder(j)); auto placeholder(obj.placeholder(j));
printValueAsJSON(state, strict, *a.value, *a.pos, placeholder, context); printValueAsJSON(state, strict, *a.value, a.pos, placeholder, context);
} }
} else } else
printValueAsJSON(state, strict, *i->value, *i->pos, out, context); printValueAsJSON(state, strict, *i->value, i->pos, out, context);
break; break;
} }
@ -82,15 +82,15 @@ void printValueAsJSON(EvalState & state, bool strict,
case nFunction: case nFunction:
auto e = TypeError({ auto e = TypeError({
.msg = hintfmt("cannot convert %1% to JSON", showType(v)), .msg = hintfmt("cannot convert %1% to JSON", showType(v)),
.errPos = v.determinePos(pos) .errPos = state.positions[v.determinePos(pos)]
}); });
e.addTrace(pos, hintfmt("message for the trace")); e.addTrace(state.positions[pos], hintfmt("message for the trace"));
throw e; throw e;
} }
} }
void printValueAsJSON(EvalState & state, bool strict, void printValueAsJSON(EvalState & state, bool strict,
Value & v, const Pos & pos, std::ostream & str, PathSet & context) Value & v, const PosIdx pos, std::ostream & str, PathSet & context)
{ {
JSONPlaceholder out(str); JSONPlaceholder out(str);
printValueAsJSON(state, strict, v, pos, out, context); printValueAsJSON(state, strict, v, pos, out, context);

4
src/libexpr/value-to-json.hh
View file

@ -11,9 +11,9 @@ namespace nix {
class JSONPlaceholder; class JSONPlaceholder;
void printValueAsJSON(EvalState & state, bool strict, void printValueAsJSON(EvalState & state, bool strict,
Value & v, const Pos & pos, JSONPlaceholder & out, PathSet & context); Value & v, const PosIdx pos, JSONPlaceholder & out, PathSet & context);
void printValueAsJSON(EvalState & state, bool strict, void printValueAsJSON(EvalState & state, bool strict,
Value & v, const Pos & pos, std::ostream & str, PathSet & context); Value & v, const PosIdx pos, std::ostream & str, PathSet & context);
} }

18
src/libexpr/value-to-xml.cc
View file

@ -19,7 +19,7 @@ static XMLAttrs singletonAttrs(const std::string & name, const std::string & val
static void printValueAsXML(EvalState & state, bool strict, bool location, static void printValueAsXML(EvalState & state, bool strict, bool location,
Value & v, XMLWriter & doc, PathSet & context, PathSet & drvsSeen, Value & v, XMLWriter & doc, PathSet & context, PathSet & drvsSeen,
const Pos & pos); const PosIdx pos);
static void posToXML(XMLAttrs & xmlAttrs, const Pos & pos) static void posToXML(XMLAttrs & xmlAttrs, const Pos & pos)
@ -43,18 +43,18 @@ static void showAttrs(EvalState & state, bool strict, bool location,
XMLAttrs xmlAttrs; XMLAttrs xmlAttrs;
xmlAttrs["name"] = i; xmlAttrs["name"] = i;
if (location && a.pos != ptr(&noPos)) posToXML(xmlAttrs, *a.pos); if (location && a.pos) posToXML(xmlAttrs, state.positions[a.pos]);
XMLOpenElement _(doc, "attr", xmlAttrs); XMLOpenElement _(doc, "attr", xmlAttrs);
printValueAsXML(state, strict, location, printValueAsXML(state, strict, location,
*a.value, doc, context, drvsSeen, *a.pos); *a.value, doc, context, drvsSeen, a.pos);
} }
} }
static void printValueAsXML(EvalState & state, bool strict, bool location, static void printValueAsXML(EvalState & state, bool strict, bool location,
Value & v, XMLWriter & doc, PathSet & context, PathSet & drvsSeen, Value & v, XMLWriter & doc, PathSet & context, PathSet & drvsSeen,
const Pos & pos) const PosIdx pos)
{ {
checkInterrupt(); checkInterrupt();
@ -93,14 +93,14 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
Path drvPath; Path drvPath;
a = v.attrs->find(state.sDrvPath); a = v.attrs->find(state.sDrvPath);
if (a != v.attrs->end()) { if (a != v.attrs->end()) {
if (strict) state.forceValue(*a->value, *a->pos); if (strict) state.forceValue(*a->value, a->pos);
if (a->value->type() == nString) if (a->value->type() == nString)
xmlAttrs["drvPath"] = drvPath = a->value->string.s; xmlAttrs["drvPath"] = drvPath = a->value->string.s;
} }
a = v.attrs->find(state.sOutPath); a = v.attrs->find(state.sOutPath);
if (a != v.attrs->end()) { if (a != v.attrs->end()) {
if (strict) state.forceValue(*a->value, *a->pos); if (strict) state.forceValue(*a->value, a->pos);
if (a->value->type() == nString) if (a->value->type() == nString)
xmlAttrs["outPath"] = a->value->string.s; xmlAttrs["outPath"] = a->value->string.s;
} }
@ -134,7 +134,7 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
break; break;
} }
XMLAttrs xmlAttrs; XMLAttrs xmlAttrs;
if (location) posToXML(xmlAttrs, v.lambda.fun->pos); if (location) posToXML(xmlAttrs, state.positions[v.lambda.fun->pos]);
XMLOpenElement _(doc, "function", xmlAttrs); XMLOpenElement _(doc, "function", xmlAttrs);
if (v.lambda.fun->hasFormals()) { if (v.lambda.fun->hasFormals()) {
@ -166,14 +166,14 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
void ExternalValueBase::printValueAsXML(EvalState & state, bool strict, void ExternalValueBase::printValueAsXML(EvalState & state, bool strict,
bool location, XMLWriter & doc, PathSet & context, PathSet & drvsSeen, bool location, XMLWriter & doc, PathSet & context, PathSet & drvsSeen,
const Pos & pos) const const PosIdx pos) const
{ {
doc.writeEmptyElement("unevaluated"); doc.writeEmptyElement("unevaluated");
} }
void printValueAsXML(EvalState & state, bool strict, bool location, void printValueAsXML(EvalState & state, bool strict, bool location,
Value & v, std::ostream & out, PathSet & context, const Pos & pos) Value & v, std::ostream & out, PathSet & context, const PosIdx pos)
{ {
XMLWriter doc(true, out); XMLWriter doc(true, out);
XMLOpenElement root(doc, "expr"); XMLOpenElement root(doc, "expr");

2
src/libexpr/value-to-xml.hh
View file

@ -9,6 +9,6 @@
namespace nix { namespace nix {
void printValueAsXML(EvalState & state, bool strict, bool location, void printValueAsXML(EvalState & state, bool strict, bool location,
Value & v, std::ostream & out, PathSet & context, const Pos & pos); Value & v, std::ostream & out, PathSet & context, const PosIdx pos);
} }

5
src/libexpr/value.hh
View file

@ -56,6 +56,7 @@ struct Expr;
struct ExprLambda; struct ExprLambda;
struct PrimOp; struct PrimOp;
class Symbol; class Symbol;
class PosIdx;
struct Pos; struct Pos;
class StorePath; class StorePath;
class Store; class Store;
@ -103,7 +104,7 @@ class ExternalValueBase
/* Print the value as XML. Defaults to unevaluated */ /* Print the value as XML. Defaults to unevaluated */
virtual void printValueAsXML(EvalState & state, bool strict, bool location, virtual void printValueAsXML(EvalState & state, bool strict, bool location,
XMLWriter & doc, PathSet & context, PathSet & drvsSeen, XMLWriter & doc, PathSet & context, PathSet & drvsSeen,
const Pos & pos) const; const PosIdx pos) const;
virtual ~ExternalValueBase() virtual ~ExternalValueBase()
{ {
@ -368,7 +369,7 @@ public:
return internalType == tList1 ? 1 : internalType == tList2 ? 2 : bigList.size; return internalType == tList1 ? 1 : internalType == tList2 ? 2 : bigList.size;
} }
Pos determinePos(const Pos & pos) const; PosIdx determinePos(const PosIdx pos) const;
/* Check whether forcing this value requires a trivial amount of /* Check whether forcing this value requires a trivial amount of
computation. In particular, function applications are computation. In particular, function applications are

52
src/libutil/types.hh
View file

@ -5,6 +5,7 @@
#include <list> #include <list>
#include <set> #include <set>
#include <string> #include <string>
#include <limits>
#include <map> #include <map>
#include <variant> #include <variant>
#include <vector> #include <vector>
@ -102,4 +103,55 @@ public:
Ptr operator->() const { return Ptr(**this); } Ptr operator->() const { return Ptr(**this); }
}; };
/* Provides an indexable container like vector<> with memory overhead
guarantees like list<> by allocating storage in chunks of ChunkSize
elements instead of using a contiguous memory allocation like vector<>
does. Not using a single vector that is resized reduces memory overhead
on large data sets by on average (growth factor)/2, mostly
eliminates copies within the vector during resizing, and provides stable
references to its elements. */
template<typename T, size_t ChunkSize>
class ChunkedVector {
private:
uint32_t size_ = 0;
std::vector<std::vector<T>> chunks;
/* keep this out of the ::add hot path */
[[gnu::noinline]]
auto & addChunk()
{
if (size_ >= std::numeric_limits<uint32_t>::max() - ChunkSize)
abort();
chunks.emplace_back();
chunks.back().reserve(ChunkSize);
return chunks.back();
}
public:
ChunkedVector(uint32_t reserve)
{
chunks.reserve(reserve);
addChunk();
}
uint32_t size() const { return size_; }
std::pair<T &, uint32_t> add(T value)
{
const auto idx = size_++;
auto & chunk = [&] () -> auto & {
if (auto & back = chunks.back(); back.size() < ChunkSize)
return back;
return addChunk();
}();
auto & result = chunk.emplace_back(std::move(value));
return {result, idx};
}
const T & operator[](uint32_t idx) const
{
return chunks[idx / ChunkSize][idx % ChunkSize];
}
};
} }

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

@ -134,9 +134,9 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
state.forceValue(topLevel, [&]() { return topLevel.determinePos(noPos); }); state.forceValue(topLevel, [&]() { return topLevel.determinePos(noPos); });
PathSet context; PathSet context;
Attr & aDrvPath(*topLevel.attrs->find(state.sDrvPath)); Attr & aDrvPath(*topLevel.attrs->find(state.sDrvPath));
auto topLevelDrv = state.coerceToStorePath(*aDrvPath.pos, *aDrvPath.value, context); auto topLevelDrv = state.coerceToStorePath(aDrvPath.pos, *aDrvPath.value, context);
Attr & aOutPath(*topLevel.attrs->find(state.sOutPath)); Attr & aOutPath(*topLevel.attrs->find(state.sOutPath));
auto topLevelOut = state.coerceToStorePath(*aOutPath.pos, *aOutPath.value, context); auto topLevelOut = state.coerceToStorePath(aOutPath.pos, *aOutPath.value, context);
/* Realise the resulting store expression. */ /* Realise the resulting store expression. */
debug("building user environment"); debug("building user environment");

6
src/nix/bundle.cc
View file

@ -97,13 +97,13 @@ struct CmdBundle : InstallableCommand
throw Error("the bundler '%s' does not produce a derivation", bundler.what()); throw Error("the bundler '%s' does not produce a derivation", bundler.what());
PathSet context2; PathSet context2;
auto drvPath = evalState->coerceToStorePath(*attr1->pos, *attr1->value, context2); auto drvPath = evalState->coerceToStorePath(attr1->pos, *attr1->value, context2);
auto attr2 = vRes->attrs->get(evalState->sOutPath); auto attr2 = vRes->attrs->get(evalState->sOutPath);
if (!attr2) if (!attr2)
throw Error("the bundler '%s' does not produce a derivation", bundler.what()); throw Error("the bundler '%s' does not produce a derivation", bundler.what());
auto outPath = evalState->coerceToStorePath(*attr2->pos, *attr2->value, context2); auto outPath = evalState->coerceToStorePath(attr2->pos, *attr2->value, context2);
store->buildPaths({ DerivedPath::Built { drvPath } }); store->buildPaths({ DerivedPath::Built { drvPath } });
@ -113,7 +113,7 @@ struct CmdBundle : InstallableCommand
auto * attr = vRes->attrs->get(evalState->sName); auto * attr = vRes->attrs->get(evalState->sName);
if (!attr) if (!attr)
throw Error("attribute 'name' missing"); throw Error("attribute 'name' missing");
outLink = evalState->forceStringNoCtx(*attr->value, *attr->pos); outLink = evalState->forceStringNoCtx(*attr->value, attr->pos);
} }
// TODO: will crash if not a localFSStore? // TODO: will crash if not a localFSStore?

4
src/nix/edit.cc
View file

@ -28,9 +28,9 @@ struct CmdEdit : InstallableCommand
{ {
auto state = getEvalState(); auto state = getEvalState();
auto [v, pos] = installable->toValue(*state);
const auto [file, line] = [&] { const auto [file, line] = [&] {
auto [v, pos] = installable->toValue(*state);
try { try {
return findPackageFilename(*state, *v, installable->what()); return findPackageFilename(*state, *v, installable->what());
} catch (NoPositionInfo &) { } catch (NoPositionInfo &) {

12
src/nix/eval.cc
View file

@ -77,9 +77,9 @@ struct CmdEval : MixJSON, InstallableCommand
if (pathExists(*writeTo)) if (pathExists(*writeTo))
throw Error("path '%s' already exists", *writeTo); throw Error("path '%s' already exists", *writeTo);
std::function<void(Value & v, const Pos & pos, const Path & path)> recurse; std::function<void(Value & v, const PosIdx pos, const Path & path)> recurse;
recurse = [&](Value & v, const Pos & pos, const Path & path) recurse = [&](Value & v, const PosIdx pos, const Path & path)
{ {
state->forceValue(v, pos); state->forceValue(v, pos);
if (v.type() == nString) if (v.type() == nString)
@ -92,14 +92,16 @@ struct CmdEval : MixJSON, InstallableCommand
try { try {
if (attr.name == "." || attr.name == "..") if (attr.name == "." || attr.name == "..")
throw Error("invalid file name '%s'", attr.name); throw Error("invalid file name '%s'", attr.name);
recurse(*attr.value, *attr.pos, path + "/" + std::string(attr.name)); recurse(*attr.value, attr.pos, path + "/" + std::string(attr.name));
} catch (Error & e) { } catch (Error & e) {
e.addTrace(*attr.pos, hintfmt("while evaluating the attribute '%s'", attr.name)); e.addTrace(
state->positions[attr.pos],
hintfmt("while evaluating the attribute '%s'", attr.name));
throw; throw;
} }
} }
else else
throw TypeError("value at '%s' is not a string or an attribute set", pos); throw TypeError("value at '%s' is not a string or an attribute set", state->positions[pos]);
}; };
recurse(*v, pos, *writeTo); recurse(*v, pos, *writeTo);

122
src/nix/flake.cc
View file

@ -123,7 +123,7 @@ struct CmdFlakeLock : FlakeCommand
}; };
static void enumerateOutputs(EvalState & state, Value & vFlake, static void enumerateOutputs(EvalState & state, Value & vFlake,
std::function<void(const std::string & name, Value & vProvide, const Pos & pos)> callback) std::function<void(const std::string & name, Value & vProvide, const PosIdx pos)> callback)
{ {
auto pos = vFlake.determinePos(noPos); auto pos = vFlake.determinePos(noPos);
state.forceAttrs(vFlake, pos); state.forceAttrs(vFlake, pos);
@ -139,11 +139,11 @@ static void enumerateOutputs(EvalState & state, Value & vFlake,
else. This way we can disable IFD for hydraJobs and then enable else. This way we can disable IFD for hydraJobs and then enable
it for other outputs. */ it for other outputs. */
if (auto attr = aOutputs->value->attrs->get(sHydraJobs)) if (auto attr = aOutputs->value->attrs->get(sHydraJobs))
callback(attr->name, *attr->value, *attr->pos); callback(attr->name, *attr->value, attr->pos);
for (auto & attr : *aOutputs->value->attrs) { for (auto & attr : *aOutputs->value->attrs) {
if (attr.name != sHydraJobs) if (attr.name != sHydraJobs)
callback(attr.name, *attr.value, *attr.pos); callback(attr.name, *attr.value, attr.pos);
} }
} }
@ -315,13 +315,17 @@ struct CmdFlakeCheck : FlakeCommand
// FIXME: rewrite to use EvalCache. // FIXME: rewrite to use EvalCache.
auto checkSystemName = [&](const std::string & system, const Pos & pos) { auto resolve = [&] (PosIdx p) {
// FIXME: what's the format of "system"? return state->positions[p];
if (system.find('-') == std::string::npos)
reportError(Error("'%s' is not a valid system type, at %s", system, pos));
}; };
auto checkDerivation = [&](const std::string & attrPath, Value & v, const Pos & pos) -> std::optional<StorePath> { auto checkSystemName = [&](const std::string & system, const PosIdx pos) {
// FIXME: what's the format of "system"?
if (system.find('-') == std::string::npos)
reportError(Error("'%s' is not a valid system type, at %s", system, resolve(pos)));
};
auto checkDerivation = [&](const std::string & attrPath, Value & v, const PosIdx pos) -> std::optional<StorePath> {
try { try {
auto drvInfo = getDerivation(*state, v, false); auto drvInfo = getDerivation(*state, v, false);
if (!drvInfo) if (!drvInfo)
@ -329,7 +333,7 @@ struct CmdFlakeCheck : FlakeCommand
// FIXME: check meta attributes // FIXME: check meta attributes
return drvInfo->queryDrvPath(); return drvInfo->queryDrvPath();
} catch (Error & e) { } catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the derivation '%s'", attrPath)); e.addTrace(resolve(pos), hintfmt("while checking the derivation '%s'", attrPath));
reportError(e); reportError(e);
} }
return std::nullopt; return std::nullopt;
@ -337,7 +341,7 @@ struct CmdFlakeCheck : FlakeCommand
std::vector<DerivedPath> drvPaths; std::vector<DerivedPath> drvPaths;
auto checkApp = [&](const std::string & attrPath, Value & v, const Pos & pos) { auto checkApp = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try { try {
#if 0 #if 0
// FIXME // FIXME
@ -348,12 +352,12 @@ struct CmdFlakeCheck : FlakeCommand
} }
#endif #endif
} catch (Error & e) { } catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the app definition '%s'", attrPath)); e.addTrace(resolve(pos), hintfmt("while checking the app definition '%s'", attrPath));
reportError(e); reportError(e);
} }
}; };
auto checkOverlay = [&](const std::string & attrPath, Value & v, const Pos & pos) { auto checkOverlay = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try { try {
state->forceValue(v, pos); state->forceValue(v, pos);
if (!v.isLambda() if (!v.isLambda()
@ -368,12 +372,12 @@ struct CmdFlakeCheck : FlakeCommand
// FIXME: if we have a 'nixpkgs' input, use it to // FIXME: if we have a 'nixpkgs' input, use it to
// evaluate the overlay. // evaluate the overlay.
} catch (Error & e) { } catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the overlay '%s'", attrPath)); e.addTrace(resolve(pos), hintfmt("while checking the overlay '%s'", attrPath));
reportError(e); reportError(e);
} }
}; };
auto checkModule = [&](const std::string & attrPath, Value & v, const Pos & pos) { auto checkModule = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try { try {
state->forceValue(v, pos); state->forceValue(v, pos);
if (v.isLambda()) { if (v.isLambda()) {
@ -382,9 +386,11 @@ struct CmdFlakeCheck : FlakeCommand
} else if (v.type() == nAttrs) { } else if (v.type() == nAttrs) {
for (auto & attr : *v.attrs) for (auto & attr : *v.attrs)
try { try {
state->forceValue(*attr.value, *attr.pos); state->forceValue(*attr.value, attr.pos);
} catch (Error & e) { } catch (Error & e) {
e.addTrace(*attr.pos, hintfmt("while evaluating the option '%s'", attr.name)); e.addTrace(
state->positions[attr.pos],
hintfmt("while evaluating the option '%s'", attr.name));
throw; throw;
} }
} else } else
@ -392,14 +398,14 @@ struct CmdFlakeCheck : FlakeCommand
// FIXME: if we have a 'nixpkgs' input, use it to // FIXME: if we have a 'nixpkgs' input, use it to
// check the module. // check the module.
} catch (Error & e) { } catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the NixOS module '%s'", attrPath)); e.addTrace(resolve(pos), hintfmt("while checking the NixOS module '%s'", attrPath));
reportError(e); reportError(e);
} }
}; };
std::function<void(const std::string & attrPath, Value & v, const Pos & pos)> checkHydraJobs; std::function<void(const std::string & attrPath, Value & v, const PosIdx pos)> checkHydraJobs;
checkHydraJobs = [&](const std::string & attrPath, Value & v, const Pos & pos) { checkHydraJobs = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try { try {
state->forceAttrs(v, pos); state->forceAttrs(v, pos);
@ -407,23 +413,23 @@ struct CmdFlakeCheck : FlakeCommand
throw Error("jobset should not be a derivation at top-level"); throw Error("jobset should not be a derivation at top-level");
for (auto & attr : *v.attrs) { for (auto & attr : *v.attrs) {
state->forceAttrs(*attr.value, *attr.pos); state->forceAttrs(*attr.value, attr.pos);
auto attrPath2 = attrPath + "." + (std::string) attr.name; auto attrPath2 = attrPath + "." + (std::string) attr.name;
if (state->isDerivation(*attr.value)) { if (state->isDerivation(*attr.value)) {
Activity act(*logger, lvlChatty, actUnknown, Activity act(*logger, lvlChatty, actUnknown,
fmt("checking Hydra job '%s'", attrPath2)); fmt("checking Hydra job '%s'", attrPath2));
checkDerivation(attrPath2, *attr.value, *attr.pos); checkDerivation(attrPath2, *attr.value, attr.pos);
} else } else
checkHydraJobs(attrPath2, *attr.value, *attr.pos); checkHydraJobs(attrPath2, *attr.value, attr.pos);
} }
} catch (Error & e) { } catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the Hydra jobset '%s'", attrPath)); e.addTrace(resolve(pos), hintfmt("while checking the Hydra jobset '%s'", attrPath));
reportError(e); reportError(e);
} }
}; };
auto checkNixOSConfiguration = [&](const std::string & attrPath, Value & v, const Pos & pos) { auto checkNixOSConfiguration = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try { try {
Activity act(*logger, lvlChatty, actUnknown, Activity act(*logger, lvlChatty, actUnknown,
fmt("checking NixOS configuration '%s'", attrPath)); fmt("checking NixOS configuration '%s'", attrPath));
@ -433,12 +439,12 @@ struct CmdFlakeCheck : FlakeCommand
if (!state->isDerivation(*vToplevel)) if (!state->isDerivation(*vToplevel))
throw Error("attribute 'config.system.build.toplevel' is not a derivation"); throw Error("attribute 'config.system.build.toplevel' is not a derivation");
} catch (Error & e) { } catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the NixOS configuration '%s'", attrPath)); e.addTrace(resolve(pos), hintfmt("while checking the NixOS configuration '%s'", attrPath));
reportError(e); reportError(e);
} }
}; };
auto checkTemplate = [&](const std::string & attrPath, Value & v, const Pos & pos) { auto checkTemplate = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try { try {
Activity act(*logger, lvlChatty, actUnknown, Activity act(*logger, lvlChatty, actUnknown,
fmt("checking template '%s'", attrPath)); fmt("checking template '%s'", attrPath));
@ -448,7 +454,7 @@ struct CmdFlakeCheck : FlakeCommand
if (auto attr = v.attrs->get(state->symbols.create("path"))) { if (auto attr = v.attrs->get(state->symbols.create("path"))) {
if (attr->name == state->symbols.create("path")) { if (attr->name == state->symbols.create("path")) {
PathSet context; PathSet context;
auto path = state->coerceToPath(*attr->pos, *attr->value, context); auto path = state->coerceToPath(attr->pos, *attr->value, context);
if (!store->isInStore(path)) if (!store->isInStore(path))
throw Error("template '%s' has a bad 'path' attribute"); throw Error("template '%s' has a bad 'path' attribute");
// TODO: recursively check the flake in 'path'. // TODO: recursively check the flake in 'path'.
@ -457,7 +463,7 @@ struct CmdFlakeCheck : FlakeCommand
throw Error("template '%s' lacks attribute 'path'", attrPath); throw Error("template '%s' lacks attribute 'path'", attrPath);
if (auto attr = v.attrs->get(state->symbols.create("description"))) if (auto attr = v.attrs->get(state->symbols.create("description")))
state->forceStringNoCtx(*attr->value, *attr->pos); state->forceStringNoCtx(*attr->value, attr->pos);
else else
throw Error("template '%s' lacks attribute 'description'", attrPath); throw Error("template '%s' lacks attribute 'description'", attrPath);
@ -467,19 +473,19 @@ struct CmdFlakeCheck : FlakeCommand
throw Error("template '%s' has unsupported attribute '%s'", attrPath, name); throw Error("template '%s' has unsupported attribute '%s'", attrPath, name);
} }
} catch (Error & e) { } catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the template '%s'", attrPath)); e.addTrace(resolve(pos), hintfmt("while checking the template '%s'", attrPath));
reportError(e); reportError(e);
} }
}; };
auto checkBundler = [&](const std::string & attrPath, Value & v, const Pos & pos) { auto checkBundler = [&](const std::string & attrPath, Value & v, const PosIdx pos) {
try { try {
state->forceValue(v, pos); state->forceValue(v, pos);
if (!v.isLambda()) if (!v.isLambda())
throw Error("bundler must be a function"); throw Error("bundler must be a function");
// TODO: check types of inputs/outputs? // TODO: check types of inputs/outputs?
} catch (Error & e) { } catch (Error & e) {
e.addTrace(pos, hintfmt("while checking the template '%s'", attrPath)); e.addTrace(resolve(pos), hintfmt("while checking the template '%s'", attrPath));
reportError(e); reportError(e);
} }
}; };
@ -492,7 +498,7 @@ struct CmdFlakeCheck : FlakeCommand
enumerateOutputs(*state, enumerateOutputs(*state,
*vFlake, *vFlake,
[&](const std::string & name, Value & vOutput, const Pos & pos) { [&](const std::string & name, Value & vOutput, const PosIdx pos) {
Activity act(*logger, lvlChatty, actUnknown, Activity act(*logger, lvlChatty, actUnknown,
fmt("checking flake output '%s'", name)); fmt("checking flake output '%s'", name));
@ -516,12 +522,12 @@ struct CmdFlakeCheck : FlakeCommand
if (name == "checks") { if (name == "checks") {
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) { for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos); checkSystemName(attr.name, attr.pos);
state->forceAttrs(*attr.value, *attr.pos); state->forceAttrs(*attr.value, attr.pos);
for (auto & attr2 : *attr.value->attrs) { for (auto & attr2 : *attr.value->attrs) {
auto drvPath = checkDerivation( auto drvPath = checkDerivation(
fmt("%s.%s.%s", name, attr.name, attr2.name), fmt("%s.%s.%s", name, attr.name, attr2.name),
*attr2.value, *attr2.pos); *attr2.value, attr2.pos);
if (drvPath && (std::string) attr.name == settings.thisSystem.get()) if (drvPath && (std::string) attr.name == settings.thisSystem.get())
drvPaths.push_back(DerivedPath::Built{*drvPath}); drvPaths.push_back(DerivedPath::Built{*drvPath});
} }
@ -531,61 +537,61 @@ struct CmdFlakeCheck : FlakeCommand
else if (name == "formatter") { else if (name == "formatter") {
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) { for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos); checkSystemName(attr.name, attr.pos);
checkApp( checkApp(
fmt("%s.%s", name, attr.name), fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos); *attr.value, attr.pos);
} }
} }
else if (name == "packages" || name == "devShells") { else if (name == "packages" || name == "devShells") {
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) { for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos); checkSystemName(attr.name, attr.pos);
state->forceAttrs(*attr.value, *attr.pos); state->forceAttrs(*attr.value, attr.pos);
for (auto & attr2 : *attr.value->attrs) for (auto & attr2 : *attr.value->attrs)
checkDerivation( checkDerivation(
fmt("%s.%s.%s", name, attr.name, attr2.name), fmt("%s.%s.%s", name, attr.name, attr2.name),
*attr2.value, *attr2.pos); *attr2.value, attr2.pos);
} }
} }
else if (name == "apps") { else if (name == "apps") {
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) { for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos); checkSystemName(attr.name, attr.pos);
state->forceAttrs(*attr.value, *attr.pos); state->forceAttrs(*attr.value, attr.pos);
for (auto & attr2 : *attr.value->attrs) for (auto & attr2 : *attr.value->attrs)
checkApp( checkApp(
fmt("%s.%s.%s", name, attr.name, attr2.name), fmt("%s.%s.%s", name, attr.name, attr2.name),
*attr2.value, *attr2.pos); *attr2.value, attr2.pos);
} }
} }
else if (name == "defaultPackage" || name == "devShell") { else if (name == "defaultPackage" || name == "devShell") {
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) { for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos); checkSystemName(attr.name, attr.pos);
checkDerivation( checkDerivation(
fmt("%s.%s", name, attr.name), fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos); *attr.value, attr.pos);
} }
} }
else if (name == "defaultApp") { else if (name == "defaultApp") {
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) { for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos); checkSystemName(attr.name, attr.pos);
checkApp( checkApp(
fmt("%s.%s", name, attr.name), fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos); *attr.value, attr.pos);
} }
} }
else if (name == "legacyPackages") { else if (name == "legacyPackages") {
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) { for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos); checkSystemName(attr.name, attr.pos);
// FIXME: do getDerivations? // FIXME: do getDerivations?
} }
} }
@ -597,7 +603,7 @@ struct CmdFlakeCheck : FlakeCommand
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) for (auto & attr : *vOutput.attrs)
checkOverlay(fmt("%s.%s", name, attr.name), checkOverlay(fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos); *attr.value, attr.pos);
} }
else if (name == "nixosModule") else if (name == "nixosModule")
@ -607,14 +613,14 @@ struct CmdFlakeCheck : FlakeCommand
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) for (auto & attr : *vOutput.attrs)
checkModule(fmt("%s.%s", name, attr.name), checkModule(fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos); *attr.value, attr.pos);
} }
else if (name == "nixosConfigurations") { else if (name == "nixosConfigurations") {
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) for (auto & attr : *vOutput.attrs)
checkNixOSConfiguration(fmt("%s.%s", name, attr.name), checkNixOSConfiguration(fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos); *attr.value, attr.pos);
} }
else if (name == "hydraJobs") else if (name == "hydraJobs")
@ -627,28 +633,28 @@ struct CmdFlakeCheck : FlakeCommand
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) for (auto & attr : *vOutput.attrs)
checkTemplate(fmt("%s.%s", name, attr.name), checkTemplate(fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos); *attr.value, attr.pos);
} }
else if (name == "defaultBundler") { else if (name == "defaultBundler") {
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) { for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos); checkSystemName(attr.name, attr.pos);
checkBundler( checkBundler(
fmt("%s.%s", name, attr.name), fmt("%s.%s", name, attr.name),
*attr.value, *attr.pos); *attr.value, attr.pos);
} }
} }
else if (name == "bundlers") { else if (name == "bundlers") {
state->forceAttrs(vOutput, pos); state->forceAttrs(vOutput, pos);
for (auto & attr : *vOutput.attrs) { for (auto & attr : *vOutput.attrs) {
checkSystemName(attr.name, *attr.pos); checkSystemName(attr.name, attr.pos);
state->forceAttrs(*attr.value, *attr.pos); state->forceAttrs(*attr.value, attr.pos);
for (auto & attr2 : *attr.value->attrs) { for (auto & attr2 : *attr.value->attrs) {
checkBundler( checkBundler(
fmt("%s.%s.%s", name, attr.name, attr2.name), fmt("%s.%s.%s", name, attr.name, attr2.name),
*attr2.value, *attr2.pos); *attr2.value, attr2.pos);
} }
} }
} }
@ -657,7 +663,7 @@ struct CmdFlakeCheck : FlakeCommand
warn("unknown flake output '%s'", name); warn("unknown flake output '%s'", name);
} catch (Error & e) { } catch (Error & e) {
e.addTrace(pos, hintfmt("while checking flake output '%s'", name)); e.addTrace(resolve(pos), hintfmt("while checking flake output '%s'", name));
reportError(e); reportError(e);
} }
}); });

9
src/nix/repl.cc
View file

@ -467,7 +467,8 @@ bool NixRepl::processLine(std::string line)
auto filename = state->coerceToString(noPos, v, context); auto filename = state->coerceToString(noPos, v, context);
return {state->symbols.create(*filename), 0}; return {state->symbols.create(*filename), 0};
} else if (v.isLambda()) { } else if (v.isLambda()) {
return {v.lambda.fun->pos.file, v.lambda.fun->pos.line}; auto pos = state->positions[v.lambda.fun->pos];
return {pos.file, pos.line};
} else { } else {
// assume it's a derivation // assume it's a derivation
return findPackageFilename(*state, v, arg); return findPackageFilename(*state, v, arg);
@ -498,7 +499,7 @@ bool NixRepl::processLine(std::string line)
Value v, f, result; Value v, f, result;
evalString(arg, v); evalString(arg, v);
evalString("drv: (import <nixpkgs> {}).runCommand \"shell\" { buildInputs = [ drv ]; } \"\"", f); evalString("drv: (import <nixpkgs> {}).runCommand \"shell\" { buildInputs = [ drv ]; } \"\"", f);
state->callFunction(f, v, result, Pos()); state->callFunction(f, v, result, PosIdx());
StorePath drvPath = getDerivationPath(result); StorePath drvPath = getDerivationPath(result);
runNix("nix-shell", {state->store->printStorePath(drvPath)}); runNix("nix-shell", {state->store->printStorePath(drvPath)});
@ -799,7 +800,7 @@ std::ostream & NixRepl::printValue(std::ostream & str, Value & v, unsigned int m
Bindings::iterator i = v.attrs->find(state->sDrvPath); Bindings::iterator i = v.attrs->find(state->sDrvPath);
PathSet context; PathSet context;
if (i != v.attrs->end()) if (i != v.attrs->end())
str << state->store->printStorePath(state->coerceToStorePath(*i->pos, *i->value, context)); str << state->store->printStorePath(state->coerceToStorePath(i->pos, *i->value, context));
else else
str << "???"; str << "???";
str << "»"; str << "»";
@ -861,7 +862,7 @@ std::ostream & NixRepl::printValue(std::ostream & str, Value & v, unsigned int m
case nFunction: case nFunction:
if (v.isLambda()) { if (v.isLambda()) {
std::ostringstream s; std::ostringstream s;
s << v.lambda.fun->pos; s << state->positions[v.lambda.fun->pos];
str << ANSI_BLUE "«lambda @ " << filterANSIEscapes(s.str()) << "»" ANSI_NORMAL; str << ANSI_BLUE "«lambda @ " << filterANSIEscapes(s.str()) << "»" ANSI_NORMAL;
} else if (v.isPrimOp()) { } else if (v.isPrimOp()) {
str << ANSI_MAGENTA "«primop»" ANSI_NORMAL; str << ANSI_MAGENTA "«primop»" ANSI_NORMAL;

2
tests/plugins/plugintest.cc
View file

@ -13,7 +13,7 @@ MySettings mySettings;
static GlobalConfig::Register rs(&mySettings); static GlobalConfig::Register rs(&mySettings);
static void prim_anotherNull (EvalState & state, const Pos & pos, Value ** args, Value & v) static void prim_anotherNull (EvalState & state, const PosIdx pos, Value ** args, Value & v)
{ {
if (mySettings.settingSet) if (mySettings.settingSet)
v.mkNull(); v.mkNull();