wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-06-27 16:51:15 +02:00
Code Activity

Merge branch 'errors-phase-2' of https://github.com/bburdette/nix

Browse source
This commit is contained in:
Eelco Dolstra 2020-06-15 11:46:31 +02:00
commit 7a77762961
81 changed files with 1857 additions and 1010 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/libexpr/attr-path.cc
View file

@ -19,7 +19,7 @@ static Strings parseAttrPath(const string & s)
++i;
while (1) {
if (i == s.end())
throw Error(format("missing closing quote in selection path '%1%'") % s);
throw Error("missing closing quote in selection path '%1%'", s);
if (*i == '"') break;
cur.push_back(*i++);
}
@ -60,11 +60,11 @@ std::pair<Value *, Pos> findAlongAttrPath(EvalState & state, const string & attr
if (v->type != tAttrs)
throw TypeError(
format("the expression selected by the selection path '%1%' should be a set but is %2%")
% attrPath % showType(*v));
"the expression selected by the selection path '%1%' should be a set but is %2%",
attrPath,
showType(*v));
if (attr.empty())
throw Error(format("empty attribute name in selection path '%1%'") % attrPath);
throw Error("empty attribute name in selection path '%1%'", attrPath);
Bindings::iterator a = v->attrs->find(state.symbols.create(attr));
if (a == v->attrs->end())
@ -77,9 +77,9 @@ std::pair<Value *, Pos> findAlongAttrPath(EvalState & state, const string & attr
if (!v->isList())
throw TypeError(
format("the expression selected by the selection path '%1%' should be a list but is %2%")
% attrPath % showType(*v));
"the expression selected by the selection path '%1%' should be a list but is %2%",
attrPath,
showType(*v));
if (attrIndex >= v->listSize())
throw AttrPathNotFound("list index %1% in selection path '%2%' is out of range", attrIndex, attrPath);

7
src/libexpr/attr-set.hh
View file

@ -76,7 +76,12 @@ public:
{
auto a = get(name);
if (!a)
throw Error("attribute '%s' missing, at %s", name, pos);
throw Error(
ErrorInfo {
.hint = hintfmt("attribute '%s' missing", name),
.nixCode = NixCode { .errPos = pos }
});
return *a;
}

24
src/libexpr/eval-inline.hh
View file

@ -7,20 +7,28 @@
namespace nix {
LocalNoInlineNoReturn(void throwEvalError(const char * s, const Pos & pos))
LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s))
{
throw EvalError(format(s) % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt(s),
.nixCode = NixCode { .errPos = pos }
});
}
LocalNoInlineNoReturn(void throwTypeError(const char * s, const Value & v))
{
throw TypeError(format(s) % showType(v));
throw TypeError(s, showType(v));
}
LocalNoInlineNoReturn(void throwTypeError(const char * s, const Value & v, const Pos & pos))
LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const Value & v))
{
throw TypeError(format(s) % showType(v) % pos);
throw TypeError(
ErrorInfo {
.hint = hintfmt(s, showType(v)),
.nixCode = NixCode { .errPos = pos }
});
}
@ -43,7 +51,7 @@ void EvalState::forceValue(Value & v, const Pos & pos)
else if (v.type == tApp)
callFunction(*v.app.left, *v.app.right, v, noPos);
else if (v.type == tBlackhole)
throwEvalError("infinite recursion encountered, at %1%", pos);
throwEvalError(pos, "infinite recursion encountered");
}
@ -59,7 +67,7 @@ inline void EvalState::forceAttrs(Value & v, const Pos & pos)
{
forceValue(v, pos);
if (v.type != tAttrs)
throwTypeError("value is %1% while a set was expected, at %2%", v, pos);
throwTypeError(pos, "value is %1% while a set was expected", v);
}
@ -75,7 +83,7 @@ inline void EvalState::forceList(Value & v, const Pos & pos)
{
forceValue(v, pos);
if (!v.isList())
throwTypeError("value is %1% while a list was expected, at %2%", v, pos);
throwTypeError(pos, "value is %1% while a list was expected", v);
}
/* Note: Various places expect the allocated memory to be zeroed. */

114
src/libexpr/eval.cc
View file

@ -501,52 +501,81 @@ Value & EvalState::getBuiltin(const string & name)
LocalNoInlineNoReturn(void throwEvalError(const char * s, const string & s2))
{
throw EvalError(format(s) % s2);
throw EvalError(s, s2);
}
LocalNoInlineNoReturn(void throwEvalError(const char * s, const string & s2, const Pos & pos))
LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, const string & s2))
{
throw EvalError(format(s) % s2 % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt(s, s2),
.nixCode = NixCode { .errPos = pos }
});
}
LocalNoInlineNoReturn(void throwEvalError(const char * s, const string & s2, const string & s3))
{
throw EvalError(format(s) % s2 % s3);
throw EvalError(s, s2, s3);
}
LocalNoInlineNoReturn(void throwEvalError(const char * s, const string & s2, const string & s3, const Pos & pos))
LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, const string & s2, const string & s3))
{
throw EvalError(format(s) % s2 % s3 % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt(s, s2, s3),
.nixCode = NixCode { .errPos = pos }
});
}
LocalNoInlineNoReturn(void throwEvalError(const char * s, const Symbol & sym, const Pos & p1, const Pos & p2))
LocalNoInlineNoReturn(void throwEvalError(const Pos & p1, const char * s, const Symbol & sym, const Pos & p2))
{
throw EvalError(format(s) % sym % p1 % p2);
// p1 is where the error occurred; p2 is a position mentioned in the message.
throw EvalError(
ErrorInfo {
.hint = hintfmt(s, sym, p2),
.nixCode = NixCode { .errPos = p1 }
});
}
LocalNoInlineNoReturn(void throwTypeError(const char * s, const Pos & pos))
LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s))
{
throw TypeError(format(s) % pos);
throw TypeError(
ErrorInfo {
.hint = hintfmt(s),
.nixCode = NixCode { .errPos = pos }
});
}
LocalNoInlineNoReturn(void throwTypeError(const char * s, const string & s1))
{
throw TypeError(format(s) % s1);
throw TypeError(s, s1);
}
LocalNoInlineNoReturn(void throwTypeError(const char * s, const ExprLambda & fun, const Symbol & s2, const Pos & pos))
LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const ExprLambda & fun, const Symbol & s2))
{
throw TypeError(format(s) % fun.showNamePos() % s2 % pos);
throw TypeError(
ErrorInfo {
.hint = hintfmt(s, fun.showNamePos(), s2),
.nixCode = NixCode { .errPos = pos }
});
}
LocalNoInlineNoReturn(void throwAssertionError(const char * s, const string & s1, const Pos & pos))
LocalNoInlineNoReturn(void throwAssertionError(const Pos & pos, const char * s, const string & s1))
{
throw AssertionError(format(s) % s1 % pos);
throw AssertionError(
ErrorInfo {
.hint = hintfmt(s, s1),
.nixCode = NixCode { .errPos = pos }
});
}
LocalNoInlineNoReturn(void throwUndefinedVarError(const char * s, const string & s1, const Pos & pos))
LocalNoInlineNoReturn(void throwUndefinedVarError(const Pos & pos, const char * s, const string & s1))
{
throw UndefinedVarError(format(s) % s1 % pos);
throw UndefinedVarError(
ErrorInfo {
.hint = hintfmt(s, s1),
.nixCode = NixCode { .errPos = pos }
});
}
LocalNoInline(void addErrorPrefix(Error & e, const char * s, const string & s2))
@ -614,7 +643,7 @@ inline Value * EvalState::lookupVar(Env * env, const ExprVar & var, bool noEval)
return j->value;
}
if (!env->prevWith)
throwUndefinedVarError("undefined variable '%1%' at %2%", var.name, var.pos);
throwUndefinedVarError(var.pos, "undefined variable '%1%'", var.name);
for (size_t l = env->prevWith; l; --l, env = env->up) ;
}
}
@ -812,7 +841,7 @@ inline bool EvalState::evalBool(Env & env, Expr * e, const Pos & pos)
Value v;
e->eval(*this, env, v);
if (v.type != tBool)
throwTypeError("value is %1% while a Boolean was expected, at %2%", v, pos);
throwTypeError(pos, "value is %1% while a Boolean was expected", v);
return v.boolean;
}
@ -926,7 +955,7 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
Symbol nameSym = state.symbols.create(nameVal.string.s);
Bindings::iterator j = v.attrs->find(nameSym);
if (j != v.attrs->end())
throwEvalError("dynamic attribute '%1%' at %2% already defined at %3%", nameSym, i.pos, *j->pos);
throwEvalError(i.pos, "dynamic attribute '%1%' already defined at %2%", nameSym, *j->pos);
i.valueExpr->setName(nameSym);
/* Keep sorted order so find can catch duplicates */
@ -1014,7 +1043,7 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v)
} else {
state.forceAttrs(*vAttrs, pos);
if ((j = vAttrs->attrs->find(name)) == vAttrs->attrs->end())
throwEvalError("attribute '%1%' missing, at %2%", name, pos);
throwEvalError(pos, "attribute '%1%' missing", name);
}
vAttrs = j->value;
pos2 = j->pos;
@ -1140,7 +1169,7 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po
}
if (fun.type != tLambda)
throwTypeError("attempt to call something which is not a function but %1%, at %2%", fun, pos);
throwTypeError(pos, "attempt to call something which is not a function but %1%", fun);
ExprLambda & lambda(*fun.lambda.fun);
@ -1168,8 +1197,8 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po
for (auto & i : lambda.formals->formals) {
Bindings::iterator j = arg.attrs->find(i.name);
if (j == arg.attrs->end()) {
if (!i.def) throwTypeError("%1% called without required argument '%2%', at %3%",
lambda, i.name, pos);
if (!i.def) throwTypeError(pos, "%1% called without required argument '%2%'",
lambda, i.name);
env2.values[displ++] = i.def->maybeThunk(*this, env2);
} else {
attrsUsed++;
@ -1184,7 +1213,7 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po
user. */
for (auto & i : *arg.attrs)
if (lambda.formals->argNames.find(i.name) == lambda.formals->argNames.end())
throwTypeError("%1% called with unexpected argument '%2%', at %3%", lambda, i.name, pos);
throwTypeError(pos, "%1% called with unexpected argument '%2%'", lambda, i.name);
abort(); // can't happen
}
}
@ -1273,7 +1302,7 @@ void ExprAssert::eval(EvalState & state, Env & env, Value & v)
if (!state.evalBool(env, cond, pos)) {
std::ostringstream out;
cond->show(out);
throwAssertionError("assertion '%1%' failed at %2%", out.str(), pos);
throwAssertionError(pos, "assertion '%1%' failed at %2%", out.str());
}
body->eval(state, env, v);
}
@ -1425,14 +1454,14 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
nf = n;
nf += vTmp.fpoint;
} else
throwEvalError("cannot add %1% to an integer, at %2%", showType(vTmp), pos);
throwEvalError(pos, "cannot add %1% to an integer", showType(vTmp));
} else if (firstType == tFloat) {
if (vTmp.type == tInt) {
nf += vTmp.integer;
} else if (vTmp.type == tFloat) {
nf += vTmp.fpoint;
} else
throwEvalError("cannot add %1% to a float, at %2%", showType(vTmp), pos);
throwEvalError(pos, "cannot add %1% to a float", showType(vTmp));
} else
s << state.coerceToString(pos, vTmp, context, false, firstType == tString);
}
@ -1443,7 +1472,7 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
mkFloat(v, nf);
else if (firstType == tPath) {
if (!context.empty())
throwEvalError("a string that refers to a store path cannot be appended to a path, at %1%", pos);
throwEvalError(pos, "a string that refers to a store path cannot be appended to a path");
auto path = canonPath(s.str());
mkPath(v, path.c_str());
} else
@ -1492,7 +1521,7 @@ NixInt EvalState::forceInt(Value & v, const Pos & pos)
{
forceValue(v, pos);
if (v.type != tInt)
throwTypeError("value is %1% while an integer was expected, at %2%", v, pos);
throwTypeError(pos, "value is %1% while an integer was expected", v);
return v.integer;
}
@ -1503,7 +1532,7 @@ NixFloat EvalState::forceFloat(Value & v, const Pos & pos)
if (v.type == tInt)
return v.integer;
else if (v.type != tFloat)
throwTypeError("value is %1% while a float was expected, at %2%", v, pos);
throwTypeError(pos, "value is %1% while a float was expected", v);
return v.fpoint;
}
@ -1512,7 +1541,7 @@ bool EvalState::forceBool(Value & v, const Pos & pos)
{
forceValue(v, pos);
if (v.type != tBool)
throwTypeError("value is %1% while a Boolean was expected, at %2%", v, pos);
throwTypeError(pos, "value is %1% while a Boolean was expected", v);
return v.boolean;
}
@ -1527,7 +1556,7 @@ void EvalState::forceFunction(Value & v, const Pos & pos)
{
forceValue(v, pos);
if (v.type != tLambda && v.type != tPrimOp && v.type != tPrimOpApp && !isFunctor(v))
throwTypeError("value is %1% while a function was expected, at %2%", v, pos);
throwTypeError(pos, "value is %1% while a function was expected", v);
}
@ -1536,7 +1565,7 @@ string EvalState::forceString(Value & v, const Pos & pos)
forceValue(v, pos);
if (v.type != tString) {
if (pos)
throwTypeError("value is %1% while a string was expected, at %2%", v, pos);
throwTypeError(pos, "value is %1% while a string was expected", v);
else
throwTypeError("value is %1% while a string was expected", v);
}
@ -1565,8 +1594,8 @@ string EvalState::forceStringNoCtx(Value & v, const Pos & pos)
string s = forceString(v, pos);
if (v.string.context) {
if (pos)
throwEvalError("the string '%1%' is not allowed to refer to a store path (such as '%2%'), at %3%",
v.string.s, v.string.context[0], pos);
throwEvalError(pos, "the string '%1%' is not allowed to refer to a store path (such as '%2%')",
v.string.s, v.string.context[0]);
else
throwEvalError("the string '%1%' is not allowed to refer to a store path (such as '%2%')",
v.string.s, v.string.context[0]);
@ -1622,7 +1651,7 @@ string EvalState::coerceToString(const Pos & pos, Value & v, PathSet & context,
return *maybeString;
}
auto i = v.attrs->find(sOutPath);
if (i == v.attrs->end()) throwTypeError("cannot coerce a set to a string, at %1%", pos);
if (i == v.attrs->end()) throwTypeError(pos, "cannot coerce a set to a string");
return coerceToString(pos, *i->value, context, coerceMore, copyToStore);
}
@ -1653,7 +1682,7 @@ string EvalState::coerceToString(const Pos & pos, Value & v, PathSet & context,
}
}
throwTypeError("cannot coerce %1% to a string, at %2%", v, pos);
throwTypeError(pos, "cannot coerce %1% to a string", v);
}
@ -1684,7 +1713,7 @@ Path EvalState::coerceToPath(const Pos & pos, Value & v, PathSet & context)
{
string path = coerceToString(pos, v, context, false, false);
if (path == "" || path[0] != '/')
throwEvalError("string '%1%' doesn't represent an absolute path, at %2%", path, pos);
throwEvalError(pos, "string '%1%' doesn't represent an absolute path", path);
return path;
}
@ -1891,8 +1920,11 @@ void EvalState::printStats()
string ExternalValueBase::coerceToString(const Pos & pos, PathSet & context, bool copyMore, bool copyToStore) const
{
throw TypeError(format("cannot coerce %1% to a string, at %2%") %
showType() % pos);
throw TypeError(
ErrorInfo {
.hint = hintfmt("cannot coerce %1% to a string", showType()),
.nixCode = NixCode { .errPos = pos }
});
}

4
src/libexpr/lexer.l
View file

@ -127,14 +127,14 @@ or { return OR_KW; }
try {
yylval->n = boost::lexical_cast<int64_t>(yytext);
} catch (const boost::bad_lexical_cast &) {
throw ParseError(format("invalid integer '%1%'") % yytext);
throw ParseError("invalid integer '%1%'", yytext);
}
return INT;
}
{FLOAT} { errno = 0;
yylval->nf = strtod(yytext, 0);
if (errno != 0)
throw ParseError(format("invalid float '%1%'") % yytext);
throw ParseError("invalid float '%1%'", yytext);
return FLOAT;
}

8
src/libexpr/nixexpr.cc
View file

@ -267,8 +267,12 @@ void ExprVar::bindVars(const StaticEnv & env)
/* Otherwise, the variable must be obtained from the nearest
enclosing `with'. If there is no `with', then we can issue an
"undefined variable" error now. */
if (withLevel == -1) throw UndefinedVarError(format("undefined variable '%1%' at %2%") % name % pos);
if (withLevel == -1)
throw UndefinedVarError(
ErrorInfo {
.hint = hintfmt("undefined variable '%1%'", name),
.nixCode = NixCode { .errPos = pos }
});
fromWith = true;
this->level = withLevel;
}

8
src/libexpr/nixexpr.hh
View file

@ -2,6 +2,7 @@
#include "value.hh"
#include "symbol-table.hh"
#include "error.hh"
#include <map>
@ -235,8 +236,11 @@ struct ExprLambda : Expr
: pos(pos), arg(arg), matchAttrs(matchAttrs), formals(formals), body(body)
{
if (!arg.empty() && formals && formals->argNames.find(arg) != formals->argNames.end())
throw ParseError(format("duplicate formal function argument '%1%' at %2%")
% arg % pos);
throw ParseError(
ErrorInfo {
.hint = hintfmt("duplicate formal function argument '%1%'", arg),
.nixCode = NixCode { .errPos = pos }
});
};
void setName(Symbol & name);
string showNamePos() const;

74
src/libexpr/parser.y
View file

@ -31,7 +31,7 @@ namespace nix {
Expr * result;
Path basePath;
Symbol path;
string error;
ErrorInfo error;
Symbol sLetBody;
ParseData(EvalState & state)
: state(state)
@ -64,15 +64,23 @@ namespace nix {
static void dupAttr(const AttrPath & attrPath, const Pos & pos, const Pos & prevPos)
{
throw ParseError(format("attribute '%1%' at %2% already defined at %3%")
% showAttrPath(attrPath) % pos % prevPos);
throw ParseError(
ErrorInfo {
.hint = hintfmt("attribute '%1%' already defined at %2%",
showAttrPath(attrPath), prevPos),
.nixCode = NixCode { .errPos = pos },
});
}
static void dupAttr(Symbol attr, const Pos & pos, const Pos & prevPos)
{
throw ParseError(format("attribute '%1%' at %2% already defined at %3%")
% attr % pos % prevPos);
throw ParseError(
ErrorInfo {
.hint = hintfmt("attribute '%1%' already defined at %2%",
attr, prevPos),
.nixCode = NixCode { .errPos = pos },
});
}
@ -140,8 +148,12 @@ static void addAttr(ExprAttrs * attrs, AttrPath & attrPath,
static void addFormal(const Pos & pos, Formals * formals, const Formal & formal)
{
if (!formals->argNames.insert(formal.name).second)
throw ParseError(format("duplicate formal function argument '%1%' at %2%")
% formal.name % pos);
throw ParseError(
ErrorInfo {
.hint = hintfmt("duplicate formal function argument '%1%'",
formal.name),
.nixCode = NixCode { .errPos = pos },
});
formals->formals.push_front(formal);
}
@ -249,8 +261,10 @@ static inline Pos makeCurPos(const YYLTYPE & loc, ParseData * data)
void yyerror(YYLTYPE * loc, yyscan_t scanner, ParseData * data, const char * error)
{
data->error = (format("%1%, at %2%")
% error % makeCurPos(*loc, data)).str();
data->error = ErrorInfo {
.hint = hintfmt(error),
.nixCode = NixCode { .errPos = makeCurPos(*loc, data) }
};
}
@ -327,8 +341,11 @@ expr_function
{ $$ = new ExprWith(CUR_POS, $2, $4); }
| LET binds IN expr_function
{ if (!$2->dynamicAttrs.empty())
throw ParseError(format("dynamic attributes not allowed in let at %1%")
% CUR_POS);
throw ParseError(
ErrorInfo {
.hint = hintfmt("dynamic attributes not allowed in let"),
.nixCode = NixCode { .errPos = CUR_POS },
});
$$ = new ExprLet($2, $4);
}
| expr_if
@ -405,7 +422,11 @@ expr_simple
| URI {
static bool noURLLiterals = settings.isExperimentalFeatureEnabled("no-url-literals");
if (noURLLiterals)
throw ParseError("URL literals are disabled, at %s", CUR_POS);
throw ParseError(
ErrorInfo {
.hint = hintfmt("URL literals are disabled"),
.nixCode = NixCode { .errPos = CUR_POS }
});
$$ = new ExprString(data->symbols.create($1));
}
| '(' expr ')' { $$ = $2; }
@ -475,8 +496,11 @@ attrs
$$->push_back(AttrName(str->s));
delete str;
} else
throw ParseError(format("dynamic attributes not allowed in inherit at %1%")
% makeCurPos(@2, data));
throw ParseError(
ErrorInfo {
.hint = hintfmt("dynamic attributes not allowed in inherit"),
.nixCode = NixCode { .errPos = makeCurPos(@2, data) },
});
}
| { $$ = new AttrPath; }
;
@ -671,11 +695,11 @@ Path EvalState::findFile(SearchPath & searchPath, const string & path, const Pos
Path res = r.second + suffix;
if (pathExists(res)) return canonPath(res);
}
format f = format(
"file '%1%' was not found in the Nix search path (add it using $NIX_PATH or -I)"
+ string(pos ? ", at %2%" : ""));
f.exceptions(boost::io::all_error_bits ^ boost::io::too_many_args_bit);
throw ThrownError(f % path % pos);
throw ThrownError(
ErrorInfo {
.hint = hintfmt("file '%1%' was not found in the Nix search path (add it using $NIX_PATH or -I)", path),
.nixCode = NixCode { .errPos = pos }
});
}
@ -691,7 +715,11 @@ std::pair<bool, std::string> EvalState::resolveSearchPathElem(const SearchPathEl
res = { true, store->toRealPath(fetchers::downloadTarball(
store, resolveUri(elem.second), "source", false).storePath) };
} catch (FileTransferError & e) {
printError(format("warning: Nix search path entry '%1%' cannot be downloaded, ignoring") % elem.second);
logWarning(
ErrorInfo {
.name = "Entry download",
.hint = hintfmt("Nix search path entry '%1%' cannot be downloaded, ignoring", elem.second)
});
res = { false, "" };
}
} else {
@ -699,7 +727,11 @@ std::pair<bool, std::string> EvalState::resolveSearchPathElem(const SearchPathEl
if (pathExists(path))
res = { true, path };
else {
printError(format("warning: Nix search path entry '%1%' does not exist, ignoring") % elem.second);
logWarning(
ErrorInfo {
.name = "Entry not found",
.hint = hintfmt("warning: Nix search path entry '%1%' does not exist, ignoring", elem.second)
});
res = { false, "" };
}
}

338
src/libexpr/primops.cc
View file

@ -93,8 +93,12 @@ static void prim_scopedImport(EvalState & state, const Pos & pos, Value * * args
try {
state.realiseContext(context);
} catch (InvalidPathError & e) {
throw EvalError(format("cannot import '%1%', since path '%2%' is not valid, at %3%")
% path % e.path % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("cannot import '%1%', since path '%2%' is not valid",
path, e.path),
.nixCode = NixCode { .errPos = pos }
});
}
Path realPath = state.checkSourcePath(state.toRealPath(path, context));
@ -170,8 +174,13 @@ void prim_importNative(EvalState & state, const Pos & pos, Value * * args, Value
try {
state.realiseContext(context);
} catch (InvalidPathError & e) {
throw EvalError(format("cannot import '%1%', since path '%2%' is not valid, at %3%")
% path % e.path % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt(
"cannot import '%1%', since path '%2%' is not valid",
path, e.path),
.nixCode = NixCode { .errPos = pos }
});
}
path = state.checkSourcePath(path);
@ -180,17 +189,17 @@ void prim_importNative(EvalState & state, const Pos & pos, Value * * args, Value
void *handle = dlopen(path.c_str(), RTLD_LAZY | RTLD_LOCAL);
if (!handle)
throw EvalError(format("could not open '%1%': %2%") % path % dlerror());
throw EvalError("could not open '%1%': %2%", path, dlerror());
dlerror();
ValueInitializer func = (ValueInitializer) dlsym(handle, sym.c_str());
if(!func) {
char *message = dlerror();
if (message)
throw EvalError(format("could not load symbol '%1%' from '%2%': %3%") % sym % path % message);
throw EvalError("could not load symbol '%1%' from '%2%': %3%", sym, path, message);
else
throw EvalError(format("symbol '%1%' from '%2%' resolved to NULL when a function pointer was expected")
% sym % path);
throw EvalError("symbol '%1%' from '%2%' resolved to NULL when a function pointer was expected",
sym, path);
}
(func)(state, v);
@ -206,7 +215,11 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v)
auto elems = args[0]->listElems();
auto count = args[0]->listSize();
if (count == 0) {
throw EvalError(format("at least one argument to 'exec' required, at %1%") % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("at least one argument to 'exec' required"),
.nixCode = NixCode { .errPos = pos }
});
}
PathSet context;
auto program = state.coerceToString(pos, *elems[0], context, false, false);
@ -217,22 +230,25 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v)
try {
state.realiseContext(context);
} catch (InvalidPathError & e) {
throw EvalError(format("cannot execute '%1%', since path '%2%' is not valid, at %3%")
% program % e.path % pos);
}
throw EvalError(
ErrorInfo {
.hint = hintfmt("cannot execute '%1%', since path '%2%' is not valid",
program, e.path),
.nixCode = NixCode { .errPos = pos }
});}
auto output = runProgram(program, true, commandArgs);
Expr * parsed;
try {
parsed = state.parseExprFromString(output, pos.file);
} catch (Error & e) {
e.addPrefix(format("While parsing the output from '%1%', at %2%\n") % program % pos);
e.addPrefix(fmt("While parsing the output from '%1%', at %2%\n", program, pos));
throw;
}
try {
state.eval(parsed, v);
} catch (Error & e) {
e.addPrefix(format("While evaluating the output from '%1%', at %2%\n") % program % pos);
e.addPrefix(fmt("While evaluating the output from '%1%', at %2%\n", program, pos));
throw;
}
}
@ -338,7 +354,7 @@ struct CompareValues
if (v1->type == tInt && v2->type == tFloat)
return v1->integer < v2->fpoint;
if (v1->type != v2->type)
throw EvalError(format("cannot compare %1% with %2%") % showType(*v1) % showType(*v2));
throw EvalError("cannot compare %1% with %2%", showType(*v1), showType(*v2));
switch (v1->type) {
case tInt:
return v1->integer < v2->integer;
@ -349,7 +365,7 @@ struct CompareValues
case tPath:
return strcmp(v1->path, v2->path) < 0;
default:
throw EvalError(format("cannot compare %1% with %2%") % showType(*v1) % showType(*v2));
throw EvalError("cannot compare %1% with %2%", showType(*v1), showType(*v2));
}
}
};
@ -370,7 +386,11 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar
Bindings::iterator startSet =
args[0]->attrs->find(state.symbols.create("startSet"));
if (startSet == args[0]->attrs->end())
throw EvalError(format("attribute 'startSet' required, at %1%") % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("attribute 'startSet' required"),
.nixCode = NixCode { .errPos = pos }
});
state.forceList(*startSet->value, pos);
ValueList workSet;
@ -381,7 +401,11 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar
Bindings::iterator op =
args[0]->attrs->find(state.symbols.create("operator"));
if (op == args[0]->attrs->end())
throw EvalError(format("attribute 'operator' required, at %1%") % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("attribute 'operator' required"),
.nixCode = NixCode { .errPos = pos }
});
state.forceValue(*op->value, pos);
/* Construct the closure by applying the operator to element of
@ -400,7 +424,11 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar
Bindings::iterator key =
e->attrs->find(state.symbols.create("key"));
if (key == e->attrs->end())
throw EvalError(format("attribute 'key' required, at %1%") % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("attribute 'key' required"),
.nixCode = NixCode { .errPos = pos }
});
state.forceValue(*key->value, pos);
if (!doneKeys.insert(key->value).second) continue;
@ -430,7 +458,7 @@ static void prim_abort(EvalState & state, const Pos & pos, Value * * args, Value
{
PathSet context;
string s = state.coerceToString(pos, *args[0], context);
throw Abort(format("evaluation aborted with the following error message: '%1%'") % s);
throw Abort("evaluation aborted with the following error message: '%1%'", s);
}
@ -505,9 +533,9 @@ static void prim_trace(EvalState & state, const Pos & pos, Value * * args, Value
{
state.forceValue(*args[0], pos);
if (args[0]->type == tString)
printError(format("trace: %1%") % args[0]->string.s);
printError("trace: %1%", args[0]->string.s);
else
printError(format("trace: %1%") % *args[0]);
printError("trace: %1%", *args[0]);
state.forceValue(*args[1], pos);
v = *args[1];
}
@ -532,13 +560,17 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
/* Figure out the name first (for stack backtraces). */
Bindings::iterator attr = args[0]->attrs->find(state.sName);
if (attr == args[0]->attrs->end())
throw EvalError(format("required attribute 'name' missing, at %1%") % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("required attribute 'name' missing"),
.nixCode = NixCode { .errPos = pos }
});
string drvName;
Pos & posDrvName(*attr->pos);
try {
drvName = state.forceStringNoCtx(*attr->value, pos);
} catch (Error & e) {
e.addPrefix(format("while evaluating the derivation attribute 'name' at %1%:\n") % posDrvName);
e.addPrefix(fmt("while evaluating the derivation attribute 'name' at %1%:\n", posDrvName));
throw;
}
@ -575,25 +607,42 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
auto handleHashMode = [&](const std::string & s) {
if (s == "recursive") ingestionMethod = FileIngestionMethod::Recursive;
else if (s == "flat") ingestionMethod = FileIngestionMethod::Flat;
else throw EvalError("invalid value '%s' for 'outputHashMode' attribute, at %s", s, posDrvName);
else
throw EvalError(
ErrorInfo {
.hint = hintfmt("invalid value '%s' for 'outputHashMode' attribute", s),
.nixCode = NixCode { .errPos = posDrvName }
});
};
auto handleOutputs = [&](const Strings & ss) {
outputs.clear();
for (auto & j : ss) {
if (outputs.find(j) != outputs.end())
throw EvalError(format("duplicate derivation output '%1%', at %2%") % j % posDrvName);
throw EvalError(
ErrorInfo {
.hint = hintfmt("duplicate derivation output '%1%'", j),
.nixCode = NixCode { .errPos = posDrvName }
});
/* !!! Check whether j is a valid attribute
name. */
/* Derivations cannot be named ‘drv’, because
then we'd have an attribute ‘drvPath’ in
the resulting set. */
if (j == "drv")
throw EvalError(format("invalid derivation output name 'drv', at %1%") % posDrvName);
throw EvalError(
ErrorInfo {
.hint = hintfmt("invalid derivation output name 'drv'" ),
.nixCode = NixCode { .errPos = posDrvName }
});
outputs.insert(j);
}
if (outputs.empty())
throw EvalError(format("derivation cannot have an empty set of outputs, at %1%") % posDrvName);
throw EvalError(
ErrorInfo {
.hint = hintfmt("derivation cannot have an empty set of outputs"),
.nixCode = NixCode { .errPos = posDrvName }
});
};
try {
@ -705,18 +754,35 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
/* Do we have all required attributes? */
if (drv.builder == "")
throw EvalError(format("required attribute 'builder' missing, at %1%") % posDrvName);
throw EvalError(
ErrorInfo {
.hint = hintfmt("required attribute 'builder' missing"),
.nixCode = NixCode { .errPos = posDrvName }
});
if (drv.platform == "")
throw EvalError(format("required attribute 'system' missing, at %1%") % posDrvName);
throw EvalError(
ErrorInfo {
.hint = hintfmt("required attribute 'system' missing"),
.nixCode = NixCode { .errPos = posDrvName }
});
/* Check whether the derivation name is valid. */
if (isDerivation(drvName))
throw EvalError("derivation names are not allowed to end in '%s', at %s", drvExtension, posDrvName);
throw EvalError(
ErrorInfo {
.hint = hintfmt("derivation names are not allowed to end in '%s'", drvExtension),
.nixCode = NixCode { .errPos = posDrvName }
});
if (outputHash) {
/* Handle fixed-output derivations. */
if (outputs.size() != 1 || *(outputs.begin()) != "out")
throw Error(format("multiple outputs are not supported in fixed-output derivations, at %1%") % posDrvName);
throw Error(
ErrorInfo {
.hint = hintfmt("multiple outputs are not supported in fixed-output derivations"),
.nixCode = NixCode { .errPos = posDrvName }
});
HashType ht = outputHashAlgo.empty() ? htUnknown : parseHashType(outputHashAlgo);
@ -821,7 +887,11 @@ static void prim_storePath(EvalState & state, const Pos & pos, Value * * args, V
e.g. nix-push does the right thing. */
if (!state.store->isStorePath(path)) path = canonPath(path, true);
if (!state.store->isInStore(path))
throw EvalError(format("path '%1%' is not in the Nix store, at %2%") % path % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("path '%1%' is not in the Nix store", path),
.nixCode = NixCode { .errPos = pos }
});
Path path2 = state.store->toStorePath(path);
if (!settings.readOnlyMode)
state.store->ensurePath(state.store->parseStorePath(path2));
@ -837,9 +907,13 @@ static void prim_pathExists(EvalState & state, const Pos & pos, Value * * args,
try {
state.realiseContext(context);
} catch (InvalidPathError & e) {
throw EvalError(format(
"cannot check the existence of '%1%', since path '%2%' is not valid, at %3%")
% path % e.path % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt(
"cannot check the existence of '%1%', since path '%2%' is not valid",
path, e.path),
.nixCode = NixCode { .errPos = pos }
});
}
try {
@ -882,12 +956,16 @@ static void prim_readFile(EvalState & state, const Pos & pos, Value * * args, Va
try {
state.realiseContext(context);
} catch (InvalidPathError & e) {
throw EvalError(format("cannot read '%1%', since path '%2%' is not valid, at %3%")
% path % e.path % pos);
}
throw EvalError(
ErrorInfo {
.hint = hintfmt("cannot read '%1%', since path '%2%' is not valid"
, path, e.path),
.nixCode = NixCode { .errPos = pos }
});
}
string s = readFile(state.checkSourcePath(state.toRealPath(path, context)));
if (s.find((char) 0) != string::npos)
throw Error(format("the contents of the file '%1%' cannot be represented as a Nix string") % path);
throw Error("the contents of the file '%1%' cannot be represented as a Nix string", path);
mkString(v, s.c_str());
}
@ -911,7 +989,11 @@ static void prim_findFile(EvalState & state, const Pos & pos, Value * * args, Va
i = v2.attrs->find(state.symbols.create("path"));
if (i == v2.attrs->end())
throw EvalError(format("attribute 'path' missing, at %1%") % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("attribute 'path' missing"),
.nixCode = NixCode { .errPos = pos }
});
PathSet context;
string path = state.coerceToString(pos, *i->value, context, false, false);
@ -919,8 +1001,12 @@ static void prim_findFile(EvalState & state, const Pos & pos, Value * * args, Va
try {
state.realiseContext(context);
} catch (InvalidPathError & e) {
throw EvalError(format("cannot find '%1%', since path '%2%' is not valid, at %3%")
% path % e.path % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("cannot find '%1%', since path '%2%' is not valid",
path, e.path),
.nixCode = NixCode { .errPos = pos }
});
}
searchPath.emplace_back(prefix, path);
@ -937,7 +1023,11 @@ static void prim_hashFile(EvalState & state, const Pos & pos, Value * * args, Va
string type = state.forceStringNoCtx(*args[0], pos);
HashType ht = parseHashType(type);
if (ht == htUnknown)
throw Error(format("unknown hash type '%1%', at %2%") % type % pos);
throw Error(
ErrorInfo {
.hint = hintfmt("unknown hash type '%1%'", type),
.nixCode = NixCode { .errPos = pos }
});
PathSet context; // discarded
Path p = state.coerceToPath(pos, *args[1], context);
@ -953,8 +1043,12 @@ static void prim_readDir(EvalState & state, const Pos & pos, Value * * args, Val
try {
state.realiseContext(ctx);
} catch (InvalidPathError & e) {
throw EvalError(format("cannot read '%1%', since path '%2%' is not valid, at %3%")
% path % e.path % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("cannot read '%1%', since path '%2%' is not valid",
path, e.path),
.nixCode = NixCode { .errPos = pos }
});
}
DirEntries entries = readDirectory(state.checkSourcePath(path));
@ -1024,9 +1118,15 @@ static void prim_toFile(EvalState & state, const Pos & pos, Value * * args, Valu
for (auto path : context) {
if (path.at(0) != '/')
throw EvalError(format(
"in 'toFile': the file named '%1%' must not contain a reference "
"to a derivation but contains (%2%), at %3%") % name % path % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt(
"in 'toFile': the file named '%1%' must not contain a reference "
"to a derivation but contains (%2%)",
name,
path),
.nixCode = NixCode { .errPos = pos }
});
refs.insert(state.store->parseStorePath(path));
}
@ -1094,11 +1194,21 @@ static void prim_filterSource(EvalState & state, const Pos & pos, Value * * args
PathSet context;
Path path = state.coerceToPath(pos, *args[1], context);
if (!context.empty())
throw EvalError(format("string '%1%' cannot refer to other paths, at %2%") % path % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("string '%1%' cannot refer to other paths", path),
.nixCode = NixCode { .errPos = pos }
});
state.forceValue(*args[0], pos);
if (args[0]->type != tLambda)
throw TypeError(format("first argument in call to 'filterSource' is not a function but %1%, at %2%") % showType(*args[0]) % pos);
throw TypeError(
ErrorInfo {
.hint = hintfmt(
"first argument in call to 'filterSource' is not a function but %1%",
showType(*args[0])),
.nixCode = NixCode { .errPos = pos }
});
addPath(state, pos, std::string(baseNameOf(path)), path, args[0], FileIngestionMethod::Recursive, Hash(), v);
}
@ -1118,7 +1228,12 @@ static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value
PathSet context;
path = state.coerceToPath(*attr.pos, *attr.value, context);
if (!context.empty())
throw EvalError(format("string '%1%' cannot refer to other paths, at %2%") % path % *attr.pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("string '%1%' cannot refer to other paths",
path),
.nixCode = NixCode { .errPos = *attr.pos }
});
} else if (attr.name == state.sName)
name = state.forceStringNoCtx(*attr.value, *attr.pos);
else if (n == "filter") {
@ -1129,10 +1244,19 @@ static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value
else if (n == "sha256")
expectedHash = newHashAllowEmpty(state.forceStringNoCtx(*attr.value, *attr.pos), htSHA256);
else
throw EvalError(format("unsupported argument '%1%' to 'addPath', at %2%") % attr.name % *attr.pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("unsupported argument '%1%' to 'addPath'",
attr.name),
.nixCode = NixCode { .errPos = *attr.pos }
});
}
if (path.empty())
throw EvalError(format("'path' required, at %1%") % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("'path' required"),
.nixCode = NixCode { .errPos = pos }
});
if (name.empty())
name = baseNameOf(path);
@ -1190,7 +1314,11 @@ void prim_getAttr(EvalState & state, const Pos & pos, Value * * args, Value & v)
// !!! Should we create a symbol here or just do a lookup?
Bindings::iterator i = args[1]->attrs->find(state.symbols.create(attr));
if (i == args[1]->attrs->end())
throw EvalError(format("attribute '%1%' missing, at %2%") % attr % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("attribute '%1%' missing", attr),
.nixCode = NixCode { .errPos = pos }
});
// !!! add to stack trace?
if (state.countCalls && i->pos) state.attrSelects[*i->pos]++;
state.forceValue(*i->value, pos);
@ -1270,15 +1398,22 @@ static void prim_listToAttrs(EvalState & state, const Pos & pos, Value * * args,
Bindings::iterator j = v2.attrs->find(state.sName);
if (j == v2.attrs->end())
throw TypeError(format("'name' attribute missing in a call to 'listToAttrs', at %1%") % pos);
throw TypeError(
ErrorInfo {
.hint = hintfmt("'name' attribute missing in a call to 'listToAttrs'"),
.nixCode = NixCode { .errPos = pos }
});
string name = state.forceStringNoCtx(*j->value, pos);
Symbol sym = state.symbols.create(name);
if (seen.insert(sym).second) {
Bindings::iterator j2 = v2.attrs->find(state.symbols.create(state.sValue));
if (j2 == v2.attrs->end())
throw TypeError(format("'value' attribute missing in a call to 'listToAttrs', at %1%") % pos);
throw TypeError(
ErrorInfo {
.hint = hintfmt("'value' attribute missing in a call to 'listToAttrs'"),
.nixCode = NixCode { .errPos = pos }
});
v.attrs->push_back(Attr(sym, j2->value, j2->pos));
}
}
@ -1351,7 +1486,11 @@ static void prim_functionArgs(EvalState & state, const Pos & pos, Value * * args
{
state.forceValue(*args[0], pos);
if (args[0]->type != tLambda)
throw TypeError(format("'functionArgs' requires a function, at %1%") % pos);
throw TypeError(
ErrorInfo {
.hint = hintfmt("'functionArgs' requires a function"),
.nixCode = NixCode { .errPos = pos }
});
if (!args[0]->lambda.fun->matchAttrs) {
state.mkAttrs(v, 0);
@ -1404,7 +1543,11 @@ static void elemAt(EvalState & state, const Pos & pos, Value & list, int n, Valu
{
state.forceList(list, pos);
if (n < 0 || (unsigned int) n >= list.listSize())
throw Error(format("list index %1% is out of bounds, at %2%") % n % pos);
throw Error(
ErrorInfo {
.hint = hintfmt("list index %1% is out of bounds", n),
.nixCode = NixCode { .errPos = pos }
});
state.forceValue(*list.listElems()[n], pos);
v = *list.listElems()[n];
}
@ -1431,7 +1574,12 @@ static void prim_tail(EvalState & state, const Pos & pos, Value * * args, Value
{
state.forceList(*args[0], pos);
if (args[0]->listSize() == 0)
throw Error(format("'tail' called on an empty list, at %1%") % pos);
throw Error(
ErrorInfo {
.hint = hintfmt("'tail' called on an empty list"),
.nixCode = NixCode { .errPos = pos }
});
state.mkList(v, args[0]->listSize() - 1);
for (unsigned int n = 0; n < v.listSize(); ++n)
v.listElems()[n] = args[0]->listElems()[n + 1];
@ -1572,7 +1720,12 @@ static void prim_genList(EvalState & state, const Pos & pos, Value * * args, Val
auto len = state.forceInt(*args[1], pos);
if (len < 0)
throw EvalError(format("cannot create list of size %1%, at %2%") % len % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("cannot create list of size %1%", len),
.nixCode = NixCode { .errPos = pos }
});
state.mkList(v, len);
@ -1730,7 +1883,12 @@ static void prim_div(EvalState & state, const Pos & pos, Value * * args, Value &
state.forceValue(*args[1], pos);
NixFloat f2 = state.forceFloat(*args[1], pos);
if (f2 == 0) throw EvalError(format("division by zero, at %1%") % pos);
if (f2 == 0)
throw EvalError(
ErrorInfo {
.hint = hintfmt("division by zero"),
.nixCode = NixCode { .errPos = pos }
});
if (args[0]->type == tFloat || args[1]->type == tFloat) {
mkFloat(v, state.forceFloat(*args[0], pos) / state.forceFloat(*args[1], pos));
@ -1739,7 +1897,12 @@ static void prim_div(EvalState & state, const Pos & pos, Value * * args, Value &
NixInt i2 = state.forceInt(*args[1], pos);
/* Avoid division overflow as it might raise SIGFPE. */
if (i1 == std::numeric_limits<NixInt>::min() && i2 == -1)
throw EvalError(format("overflow in integer division, at %1%") % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("overflow in integer division"),
.nixCode = NixCode { .errPos = pos }
});
mkInt(v, i1 / i2);
}
}
@ -1795,7 +1958,12 @@ static void prim_substring(EvalState & state, const Pos & pos, Value * * args, V
PathSet context;
string s = state.coerceToString(pos, *args[2], context);
if (start < 0) throw EvalError(format("negative start position in 'substring', at %1%") % pos);
if (start < 0)
throw EvalError(
ErrorInfo {
.hint = hintfmt("negative start position in 'substring'"),
.nixCode = NixCode { .errPos = pos }
});
mkString(v, (unsigned int) start >= s.size() ? "" : string(s, start, len), context);
}
@ -1815,7 +1983,11 @@ static void prim_hashString(EvalState & state, const Pos & pos, Value * * args,
string type = state.forceStringNoCtx(*args[0], pos);
HashType ht = parseHashType(type);
if (ht == htUnknown)
throw Error(format("unknown hash type '%1%', at %2%") % type % pos);
throw Error(
ErrorInfo {
.hint = hintfmt("unknown hash type '%1%'", type),
.nixCode = NixCode { .errPos = pos }
});
PathSet context; // discarded
string s = state.forceString(*args[1], context, pos);
@ -1857,10 +2029,18 @@ void prim_match(EvalState & state, const Pos & pos, Value * * args, Value & v)
} catch (std::regex_error &e) {
if (e.code() == std::regex_constants::error_space) {
// limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++
throw EvalError("memory limit exceeded by regular expression '%s', at %s", re, pos);
// limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++
throw EvalError(
ErrorInfo {
.hint = hintfmt("memory limit exceeded by regular expression '%s'", re),
.nixCode = NixCode { .errPos = pos }
});
} else {
throw EvalError("invalid regular expression '%s', at %s", re, pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("invalid regular expression '%s'", re),
.nixCode = NixCode { .errPos = pos }
});
}
}
}
@ -1924,10 +2104,18 @@ static void prim_split(EvalState & state, const Pos & pos, Value * * args, Value
} catch (std::regex_error &e) {
if (e.code() == std::regex_constants::error_space) {
// limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++
throw EvalError("memory limit exceeded by regular expression '%s', at %s", re, pos);
// limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++
throw EvalError(
ErrorInfo {
.hint = hintfmt("memory limit exceeded by regular expression '%s'", re),
.nixCode = NixCode { .errPos = pos }
});
} else {
throw EvalError("invalid regular expression '%s', at %s", re, pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("invalid regular expression '%s'", re),
.nixCode = NixCode { .errPos = pos }
});
}
}
}
@ -1958,7 +2146,11 @@ static void prim_replaceStrings(EvalState & state, const Pos & pos, Value * * ar
state.forceList(*args[0], pos);
state.forceList(*args[1], pos);
if (args[0]->listSize() != args[1]->listSize())
throw EvalError(format("'from' and 'to' arguments to 'replaceStrings' have different lengths, at %1%") % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("'from' and 'to' arguments to 'replaceStrings' have different lengths"),
.nixCode = NixCode { .errPos = pos }
});
vector<string> from;
from.reserve(args[0]->listSize());

18
src/libexpr/primops/context.cc
View file

@ -146,7 +146,11 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
auto sAllOutputs = state.symbols.create("allOutputs");
for (auto & i : *args[1]->attrs) {
if (!state.store->isStorePath(i.name))
throw EvalError("Context key '%s' is not a store path, at %s", i.name, i.pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("Context key '%s' is not a store path", i.name),
.nixCode = NixCode { .errPos = *i.pos }
});
if (!settings.readOnlyMode)
state.store->ensurePath(state.store->parseStorePath(i.name));
state.forceAttrs(*i.value, *i.pos);
@ -160,7 +164,11 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
if (iter != i.value->attrs->end()) {
if (state.forceBool(*iter->value, *iter->pos)) {
if (!isDerivation(i.name)) {
throw EvalError("Tried to add all-outputs context of %s, which is not a derivation, to a string, at %s", i.name, i.pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("Tried to add all-outputs context of %s, which is not a derivation, to a string", i.name),
.nixCode = NixCode { .errPos = *i.pos }
});
}
context.insert("=" + string(i.name));
}
@ -170,7 +178,11 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
if (iter != i.value->attrs->end()) {
state.forceList(*iter->value, *iter->pos);
if (iter->value->listSize() && !isDerivation(i.name)) {
throw EvalError("Tried to add derivation output context of %s, which is not a derivation, to a string, at %s", i.name, i.pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("Tried to add derivation output context of %s, which is not a derivation, to a string", i.name),
.nixCode = NixCode { .errPos = *i.pos }
});
}
for (unsigned int n = 0; n < iter->value->listSize(); ++n) {
auto name = state.forceStringNoCtx(*iter->value->listElems()[n], *iter->pos);

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

@ -35,11 +35,19 @@ static void prim_fetchGit(EvalState & state, const Pos & pos, Value * * args, Va
else if (n == "submodules")
fetchSubmodules = state.forceBool(*attr.value, *attr.pos);
else
throw EvalError("unsupported argument '%s' to 'fetchGit', at %s", attr.name, *attr.pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("unsupported argument '%s' to 'fetchGit'", attr.name),
.nixCode = NixCode { .errPos = *attr.pos }
});
}
if (url.empty())
throw EvalError(format("'url' argument required, at %1%") % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("'url' argument required"),
.nixCode = NixCode { .errPos = pos }
});
} else
url = state.coerceToString(pos, *args[0], context, false, false);

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

@ -38,11 +38,19 @@ static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * ar
else if (n == "name")
name = state.forceStringNoCtx(*attr.value, *attr.pos);
else
throw EvalError("unsupported argument '%s' to 'fetchMercurial', at %s", attr.name, *attr.pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("unsupported argument '%s' to 'fetchMercurial'", attr.name),
.nixCode = NixCode { .errPos = *attr.pos }
});
}
if (url.empty())
throw EvalError(format("'url' argument required, at %1%") % pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("'url' argument required"),
.nixCode = NixCode { .errPos = pos }
});
} else
url = state.coerceToString(pos, *args[0], context, false, false);

23
src/libexpr/primops/fetchTree.cc
View file

@ -66,7 +66,11 @@ static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, V
}
if (!attrs.count("type"))
throw Error("attribute 'type' is missing in call to 'fetchTree', at %s", pos);
throw Error(
ErrorInfo {
.hint = hintfmt("attribute 'type' is missing in call to 'fetchTree'"),
.nixCode = NixCode { .errPos = pos }
});
input = fetchers::inputFromAttrs(attrs);
} else
@ -107,13 +111,20 @@ static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
else if (n == "name")
name = state.forceStringNoCtx(*attr.value, *attr.pos);
else
throw EvalError("unsupported argument '%s' to '%s', at %s",
attr.name, who, *attr.pos);
}
throw EvalError(
ErrorInfo {
.hint = hintfmt("unsupported argument '%s' to '%s'",
attr.name, who),
.nixCode = NixCode { .errPos = *attr.pos }
});
}
if (!url)
throw EvalError("'url' argument required, at %s", pos);
throw EvalError(
ErrorInfo {
.hint = hintfmt("'url' argument required"),
.nixCode = NixCode { .errPos = pos }
});
} else
url = state.forceStringNoCtx(*args[0], pos);

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

@ -81,7 +81,11 @@ static void prim_fromTOML(EvalState & state, const Pos & pos, Value * * args, Va
try {
visit(v, parser(tomlStream).parse());
} catch (std::runtime_error & e) {
throw EvalError("while parsing a TOML string at %s: %s", pos, e.what());
throw EvalError(
ErrorInfo {
.hint = hintfmt("while parsing a TOML string: %s", e.what()),
.nixCode = NixCode { .errPos = pos }
});
}
}

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

@ -79,7 +79,7 @@ void printValueAsJSON(EvalState & state, bool strict,
break;
default:
throw TypeError(format("cannot convert %1% to JSON") % showType(v));
throw TypeError("cannot convert %1% to JSON", showType(v));
}
}
@ -93,7 +93,7 @@ void printValueAsJSON(EvalState & state, bool strict,
void ExternalValueBase::printValueAsJSON(EvalState & state, bool strict,
JSONPlaceholder & out, PathSet & context) const
{
throw TypeError(format("cannot convert %1% to JSON") % showType());
throw TypeError("cannot convert %1% to JSON", showType());
}