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 remote-tracking branch 'upstream/master' into no-stringly-typed-derivation-output

Browse source
This commit is contained in:
John Ericson 2020-06-17 04:55:47 +00:00
commit 517f5980e2
138 changed files with 2604 additions and 1743 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);

6
src/libexpr/attr-set.hh
View file

@ -76,7 +76,11 @@ public:
{
auto a = get(name);
if (!a)
throw Error("attribute '%s' missing, at %s", name, pos);
throw Error({
.hint = hintfmt("attribute '%s' missing", name),
.nixCode = NixCode { .errPos = pos }
});
return *a;
}

22
src/libexpr/eval-inline.hh
View file

@ -7,20 +7,26 @@
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({
.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({
.hint = hintfmt(s, showType(v)),
.nixCode = NixCode { .errPos = pos }
});
}
@ -43,7 +49,7 @@ 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 +65,7 @@ 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 +81,7 @@ 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. */

106
src/libexpr/eval.cc
View file

@ -501,52 +501,74 @@ 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({
.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({
.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({
.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({
.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({
.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({
.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({
.hint = hintfmt(s, s1),
.nixCode = NixCode { .errPos = pos }
});
}
LocalNoInline(void addErrorPrefix(Error & e, const char * s, const string & s2))
@ -614,7 +636,7 @@ 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 +834,7 @@ 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 +948,7 @@ 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 +1036,7 @@ 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 +1162,7 @@ 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 +1190,8 @@ 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 +1206,7 @@ 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 +1295,7 @@ 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 +1447,14 @@ 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 +1465,7 @@ 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 +1514,7 @@ 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 +1525,7 @@ 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 +1534,7 @@ 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 +1549,7 @@ 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 +1558,7 @@ 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 +1587,8 @@ 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 +1644,7 @@ 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 +1675,7 @@ 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 +1706,7 @@ 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 +1913,10 @@ 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({
.hint = hintfmt("cannot coerce %1% to a string", showType()),
.nixCode = NixCode { .errPos = pos }
});
}

5
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;
}
@ -219,4 +219,3 @@ or { return OR_KW; }
}
%%

2
src/libexpr/local.mk
View file

@ -8,7 +8,7 @@ libexpr_SOURCES := $(wildcard $(d)/*.cc) $(wildcard $(d)/primops/*.cc) $(d)/lexe
libexpr_CXXFLAGS += -I src/libutil -I src/libstore -I src/libfetchers -I src/libmain -I src/libexpr
libexpr_LIBS = libutil libstore libfetchers libnixrust
libexpr_LIBS = libutil libstore libfetchers
libexpr_LDFLAGS =
ifneq ($(OS), FreeBSD)

107
src/libexpr/names.cc
View file

@ -1,107 +0,0 @@
#include "names.hh"
#include "util.hh"
namespace nix {
DrvName::DrvName()
{
name = "";
}
/* Parse a derivation name. The `name' part of a derivation name is
everything up to but not including the first dash *not* followed by
a letter. The `version' part is the rest (excluding the separating
dash). E.g., `apache-httpd-2.0.48' is parsed to (`apache-httpd',
'2.0.48'). */
DrvName::DrvName(std::string_view s) : hits(0)
{
name = fullName = std::string(s);
for (unsigned int i = 0; i < s.size(); ++i) {
/* !!! isalpha/isdigit are affected by the locale. */
if (s[i] == '-' && i + 1 < s.size() && !isalpha(s[i + 1])) {
name = s.substr(0, i);
version = s.substr(i + 1);
break;
}
}
}
bool DrvName::matches(DrvName & n)
{
if (name != "*") {
if (!regex) regex = std::unique_ptr<std::regex>(new std::regex(name, std::regex::extended));
if (!std::regex_match(n.name, *regex)) return false;
}
if (version != "" && version != n.version) return false;
return true;
}
string nextComponent(string::const_iterator & p,
const string::const_iterator end)
{
/* Skip any dots and dashes (component separators). */
while (p != end && (*p == '.' || *p == '-')) ++p;
if (p == end) return "";
/* If the first character is a digit, consume the longest sequence
of digits. Otherwise, consume the longest sequence of
non-digit, non-separator characters. */
string s;
if (isdigit(*p))
while (p != end && isdigit(*p)) s += *p++;
else
while (p != end && (!isdigit(*p) && *p != '.' && *p != '-'))
s += *p++;
return s;
}
static bool componentsLT(const string & c1, const string & c2)
{
int n1, n2;
bool c1Num = string2Int(c1, n1), c2Num = string2Int(c2, n2);
if (c1Num && c2Num) return n1 < n2;
else if (c1 == "" && c2Num) return true;
else if (c1 == "pre" && c2 != "pre") return true;
else if (c2 == "pre") return false;
/* Assume that `2.3a' < `2.3.1'. */
else if (c2Num) return true;
else if (c1Num) return false;
else return c1 < c2;
}
int compareVersions(const string & v1, const string & v2)
{
string::const_iterator p1 = v1.begin();
string::const_iterator p2 = v2.begin();
while (p1 != v1.end() || p2 != v2.end()) {
string c1 = nextComponent(p1, v1.end());
string c2 = nextComponent(p2, v2.end());
if (componentsLT(c1, c2)) return -1;
else if (componentsLT(c2, c1)) return 1;
}
return 0;
}
DrvNames drvNamesFromArgs(const Strings & opArgs)
{
DrvNames result;
for (auto & i : opArgs)
result.push_back(DrvName(i));
return result;
}
}

32
src/libexpr/names.hh
View file

@ -1,32 +0,0 @@
#pragma once
#include <memory>
#include "types.hh"
#include <regex>
namespace nix {
struct DrvName
{
string fullName;
string name;
string version;
unsigned int hits;
DrvName();
DrvName(std::string_view s);
bool matches(DrvName & n);
private:
std::unique_ptr<std::regex> regex;
};
typedef list<DrvName> DrvNames;
string nextComponent(string::const_iterator & p,
const string::const_iterator end);
int compareVersions(const string & v1, const string & v2);
DrvNames drvNamesFromArgs(const Strings & opArgs);
}

7
src/libexpr/nixexpr.cc
View file

@ -267,8 +267,11 @@ 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({
.hint = hintfmt("undefined variable '%1%'", name),
.nixCode = NixCode { .errPos = pos }
});
fromWith = true;
this->level = withLevel;
}

7
src/libexpr/nixexpr.hh
View file

@ -2,6 +2,7 @@
#include "value.hh"
#include "symbol-table.hh"
#include "error.hh"
#include <map>
@ -235,8 +236,10 @@ 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({
.hint = hintfmt("duplicate formal function argument '%1%'", arg),
.nixCode = NixCode { .errPos = pos }
});
};
void setName(Symbol & name);
string showNamePos() const;

67
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 +64,20 @@ 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({
.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({
.hint = hintfmt("attribute '%1%' already defined at %2%", attr, prevPos),
.nixCode = NixCode { .errPos = pos },
});
}
@ -140,8 +145,11 @@ 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({
.hint = hintfmt("duplicate formal function argument '%1%'",
formal.name),
.nixCode = NixCode { .errPos = pos },
});
formals->formals.push_front(formal);
}
@ -249,8 +257,10 @@ 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 = {
.hint = hintfmt(error),
.nixCode = NixCode { .errPos = makeCurPos(*loc, data) }
};
}
@ -327,8 +337,10 @@ expr_function
{ $$ = new ExprWith(CUR_POS, $2, $4); }
| LET binds IN expr_function
{ if (!$2->dynamicAttrs.empty())
throw ParseError(format("dynamic attributes not allowed in let at %1%")
% CUR_POS);
throw ParseError({
.hint = hintfmt("dynamic attributes not allowed in let"),
.nixCode = NixCode { .errPos = CUR_POS },
});
$$ = new ExprLet($2, $4);
}
| expr_if
@ -405,7 +417,10 @@ 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({
.hint = hintfmt("URL literals are disabled"),
.nixCode = NixCode { .errPos = CUR_POS }
});
$$ = new ExprString(data->symbols.create($1));
}
| '(' expr ')' { $$ = $2; }
@ -475,8 +490,10 @@ attrs
$$->push_back(AttrName(str->s));
delete str;
} else
throw ParseError(format("dynamic attributes not allowed in inherit at %1%")
% makeCurPos(@2, data));
throw ParseError({
.hint = hintfmt("dynamic attributes not allowed in inherit"),
.nixCode = NixCode { .errPos = makeCurPos(@2, data) },
});
}
| { $$ = new AttrPath; }
;
@ -671,11 +688,13 @@ 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({
.hint = hintfmt(evalSettings.pureEval
? "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)",
path),
.nixCode = NixCode { .errPos = pos }
});
}
@ -691,7 +710,10 @@ 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({
.name = "Entry download",
.hint = hintfmt("Nix search path entry '%1%' cannot be downloaded, ignoring", elem.second)
});
res = { false, "" };
}
} else {
@ -699,7 +721,10 @@ 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({
.name = "Entry not found",
.hint = hintfmt("warning: Nix search path entry '%1%' does not exist, ignoring", elem.second)
});
res = { false, "" };
}
}

312
src/libexpr/primops.cc
View file

@ -55,7 +55,7 @@ void EvalState::realiseContext(const PathSet & context)
if (!store->isValidPath(ctx))
throw InvalidPathError(store->printStorePath(ctx));
if (!decoded.second.empty() && ctx.isDerivation()) {
drvs.push_back(StorePathWithOutputs{ctx.clone(), {decoded.second}});
drvs.push_back(StorePathWithOutputs{ctx, {decoded.second}});
/* Add the output of this derivation to the allowed
paths. */
@ -93,8 +93,10 @@ 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({
.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 +172,12 @@ 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({
.hint = hintfmt(
"cannot import '%1%', since path '%2%' is not valid",
path, e.path),
.nixCode = NixCode { .errPos = pos }
});
}
path = state.checkSourcePath(path);
@ -180,17 +186,17 @@ 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 +212,10 @@ 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({
.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);
@ -217,8 +226,11 @@ 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({
.hint = hintfmt("cannot execute '%1%', since path '%2%' is not valid",
program, e.path),
.nixCode = NixCode { .errPos = pos }
});
}
auto output = runProgram(program, true, commandArgs);
@ -226,13 +238,13 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v)
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 +350,7 @@ 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 +361,7 @@ 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 +382,10 @@ 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({
.hint = hintfmt("attribute 'startSet' required"),
.nixCode = NixCode { .errPos = pos }
});
state.forceList(*startSet->value, pos);
ValueList workSet;
@ -381,7 +396,10 @@ 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({
.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 +418,10 @@ 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({
.hint = hintfmt("attribute 'key' required"),
.nixCode = NixCode { .errPos = pos }
});
state.forceValue(*key->value, pos);
if (!doneKeys.insert(key->value).second) continue;
@ -430,7 +451,7 @@ 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 +526,9 @@ 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 +553,16 @@ 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({
.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 +599,38 @@ 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({
.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({
.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({
.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({
.hint = hintfmt("derivation cannot have an empty set of outputs"),
.nixCode = NixCode { .errPos = posDrvName }
});
};
try {
@ -686,9 +723,9 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
StorePathSet refs;
state.store->computeFSClosure(state.store->parseStorePath(std::string_view(path).substr(1)), refs);
for (auto & j : refs) {
drv.inputSrcs.insert(j.clone());
drv.inputSrcs.insert(j);
if (j.isDerivation())
drv.inputDrvs[j.clone()] = state.store->queryDerivationOutputNames(j);
drv.inputDrvs[j] = state.store->readDerivation(j).outputNames();
}
}
@ -705,27 +742,42 @@ 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({
.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({
.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({
.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({
.hint = hintfmt("multiple outputs are not supported in fixed-output derivations"),
.nixCode = NixCode { .errPos = posDrvName }
});
HashType ht = outputHashAlgo.empty() ? htUnknown : parseHashType(outputHashAlgo);
Hash h(*outputHash, ht);
Hash h = newHashAllowEmpty(*outputHash, ht);
auto outPath = state.store->makeFixedOutputPath(ingestionMethod, h, drvName);
if (!jsonObject) drv.env["out"] = state.store->printStorePath(outPath);
drv.outputs.insert_or_assign("out", DerivationOutput(
std::move(outPath),
FileSystemHash(ingestionMethod, std::move(h))));
drv.outputs.insert_or_assign("out", DerivationOutput {
.path = std::move(outPath),
.hash = FileSystemHash { ingestionMethod, std::move(h) },
});
}
else {
@ -738,7 +790,10 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
for (auto & i : outputs) {
if (!jsonObject) drv.env[i] = "";
drv.outputs.insert_or_assign(i,
DerivationOutput(StorePath::dummy.clone(), std::optional<FileSystemHash>()));
DerivationOutput {
.path = StorePath::dummy,
.hash = std::optional<FileSystemHash> {},
});
}
Hash h = hashDerivationModulo(*state.store, Derivation(drv), true);
@ -747,7 +802,10 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
auto outPath = state.store->makeOutputPath(i, h, drvName);
if (!jsonObject) drv.env[i] = state.store->printStorePath(outPath);
drv.outputs.insert_or_assign(i,
DerivationOutput(std::move(outPath), std::optional<FileSystemHash>()));
DerivationOutput {
.path = std::move(outPath),
.hash = std::optional<FileSystemHash>(),
});
}
}
@ -760,7 +818,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
/* Optimisation, but required in read-only mode! because in that
case we don't actually write store derivations, so we can't
read them later. */
drvHashes.insert_or_assign(drvPath.clone(),
drvHashes.insert_or_assign(drvPath,
hashDerivationModulo(*state.store, Derivation(drv), false));
state.mkAttrs(v, 1 + drv.outputs.size());
@ -817,7 +875,10 @@ 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({
.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));
@ -833,9 +894,12 @@ 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({
.hint = hintfmt(
"cannot check the existence of '%1%', since path '%2%' is not valid",
path, e.path),
.nixCode = NixCode { .errPos = pos }
});
}
try {
@ -878,12 +942,14 @@ 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({
.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());
}
@ -907,7 +973,10 @@ 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({
.hint = hintfmt("attribute 'path' missing"),
.nixCode = NixCode { .errPos = pos }
});
PathSet context;
string path = state.coerceToString(pos, *i->value, context, false, false);
@ -915,8 +984,10 @@ 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({
.hint = hintfmt("cannot find '%1%', since path '%2%' is not valid", path, e.path),
.nixCode = NixCode { .errPos = pos }
});
}
searchPath.emplace_back(prefix, path);
@ -933,7 +1004,10 @@ 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({
.hint = hintfmt("unknown hash type '%1%'", type),
.nixCode = NixCode { .errPos = pos }
});
PathSet context; // discarded
Path p = state.coerceToPath(pos, *args[1], context);
@ -949,8 +1023,10 @@ 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({
.hint = hintfmt("cannot read '%1%', since path '%2%' is not valid", path, e.path),
.nixCode = NixCode { .errPos = pos }
});
}
DirEntries entries = readDirectory(state.checkSourcePath(path));
@ -1020,9 +1096,13 @@ 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( {
.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));
}
@ -1090,11 +1170,19 @@ 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({
.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({
.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);
}
@ -1114,7 +1202,10 @@ 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({
.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") {
@ -1123,12 +1214,18 @@ static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value
} else if (n == "recursive")
method = FileIngestionMethod { state.forceBool(*attr.value, *attr.pos) };
else if (n == "sha256")
expectedHash = Hash(state.forceStringNoCtx(*attr.value, *attr.pos), htSHA256);
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({
.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({
.hint = hintfmt("'path' required"),
.nixCode = NixCode { .errPos = pos }
});
if (name.empty())
name = baseNameOf(path);
@ -1186,7 +1283,10 @@ 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({
.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);
@ -1266,15 +1366,20 @@ 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({
.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({
.hint = hintfmt("'value' attribute missing in a call to 'listToAttrs'"),
.nixCode = NixCode { .errPos = pos }
});
v.attrs->push_back(Attr(sym, j2->value, j2->pos));
}
}
@ -1347,7 +1452,10 @@ 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({
.hint = hintfmt("'functionArgs' requires a function"),
.nixCode = NixCode { .errPos = pos }
});
if (!args[0]->lambda.fun->matchAttrs) {
state.mkAttrs(v, 0);
@ -1400,7 +1508,10 @@ 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({
.hint = hintfmt("list index %1% is out of bounds", n),
.nixCode = NixCode { .errPos = pos }
});
state.forceValue(*list.listElems()[n], pos);
v = *list.listElems()[n];
}
@ -1427,7 +1538,11 @@ 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({
.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];
@ -1568,7 +1683,10 @@ 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({
.hint = hintfmt("cannot create list of size %1%", len),
.nixCode = NixCode { .errPos = pos }
});
state.mkList(v, len);
@ -1726,7 +1844,11 @@ 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({
.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));
@ -1735,7 +1857,11 @@ 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({
.hint = hintfmt("overflow in integer division"),
.nixCode = NixCode { .errPos = pos }
});
mkInt(v, i1 / i2);
}
}
@ -1791,7 +1917,11 @@ 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({
.hint = hintfmt("negative start position in 'substring'"),
.nixCode = NixCode { .errPos = pos }
});
mkString(v, (unsigned int) start >= s.size() ? "" : string(s, start, len), context);
}
@ -1811,7 +1941,10 @@ 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({
.hint = hintfmt("unknown hash type '%1%'", type),
.nixCode = NixCode { .errPos = pos }
});
PathSet context; // discarded
string s = state.forceString(*args[1], context, pos);
@ -1853,10 +1986,16 @@ 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({
.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({
.hint = hintfmt("invalid regular expression '%s'", re),
.nixCode = NixCode { .errPos = pos }
});
}
}
}
@ -1920,10 +2059,16 @@ 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({
.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({
.hint = hintfmt("invalid regular expression '%s'", re),
.nixCode = NixCode { .errPos = pos }
});
}
}
}
@ -1954,7 +2099,10 @@ 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({
.hint = hintfmt("'from' and 'to' arguments to 'replaceStrings' have different lengths"),
.nixCode = NixCode { .errPos = pos }
});
vector<string> from;
from.reserve(args[0]->listSize());

15
src/libexpr/primops/context.cc
View file

@ -146,7 +146,10 @@ 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({
.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 +163,10 @@ 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({
.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 +176,10 @@ 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({
.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);

10
src/libexpr/primops/fetchGit.cc
View file

@ -35,11 +35,17 @@ 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({
.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({
.hint = hintfmt("'url' argument required"),
.nixCode = NixCode { .errPos = pos }
});
} else
url = state.coerceToString(pos, *args[0], context, false, false);

10
src/libexpr/primops/fetchMercurial.cc
View file

@ -38,11 +38,17 @@ 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({
.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({
.hint = hintfmt("'url' argument required"),
.nixCode = NixCode { .errPos = pos }
});
} else
url = state.coerceToString(pos, *args[0], context, false, false);

25
src/libexpr/primops/fetchTree.cc
View file

@ -23,7 +23,7 @@ void emitTreeAttrs(
assert(tree.info.narHash);
mkString(*state.allocAttr(v, state.symbols.create("narHash")),
tree.info.narHash.to_string(SRI));
tree.info.narHash.to_string(SRI, true));
if (input->getRev()) {
mkString(*state.allocAttr(v, state.symbols.create("rev")), input->getRev()->gitRev());
@ -66,7 +66,10 @@ 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({
.hint = hintfmt("attribute 'type' is missing in call to 'fetchTree'"),
.nixCode = NixCode { .errPos = pos }
});
input = fetchers::inputFromAttrs(attrs);
} else
@ -103,17 +106,21 @@ static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
if (n == "url")
url = state.forceStringNoCtx(*attr.value, *attr.pos);
else if (n == "sha256")
expectedHash = Hash(state.forceStringNoCtx(*attr.value, *attr.pos), htSHA256);
expectedHash = newHashAllowEmpty(state.forceStringNoCtx(*attr.value, *attr.pos), htSHA256);
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({
.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({
.hint = hintfmt("'url' argument required"),
.nixCode = NixCode { .errPos = pos }
});
} else
url = state.forceStringNoCtx(*args[0], pos);
@ -140,7 +147,7 @@ static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
: hashFile(htSHA256, path);
if (hash != *expectedHash)
throw Error((unsigned int) 102, "hash mismatch in file downloaded from '%s':\n wanted: %s\n got: %s",
*url, expectedHash->to_string(), hash.to_string());
*url, expectedHash->to_string(Base32, true), hash.to_string(Base32, true));
}
if (state.allowedPaths)

5
src/libexpr/primops/fromTOML.cc
View file

@ -81,7 +81,10 @@ 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({
.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());
}