From 55eb71714854b262b5e1079ff250a13cc0bbf644 Mon Sep 17 00:00:00 2001 From: Ben Burdette Date: Fri, 8 May 2020 18:18:28 -0600 Subject: [PATCH] add pos to errorinfo, remove from hints --- src/error-demo/error-demo.cc | 17 +- src/libexpr/attr-set.hh | 7 +- src/libexpr/eval-inline.hh | 18 +- src/libexpr/eval.cc | 76 ++++-- src/libexpr/parser.y | 17 +- src/libexpr/primops.cc | 331 +++++++++++++++++++++----- src/libexpr/primops/context.cc | 20 +- src/libexpr/primops/fetchGit.cc | 12 +- src/libexpr/primops/fetchMercurial.cc | 13 +- src/libutil/error.cc | 172 ++++++------- src/libutil/error.hh | 11 +- src/libutil/logging.cc | 3 +- tests/misc.sh | 4 +- 13 files changed, 507 insertions(+), 194 deletions(-) diff --git a/src/error-demo/error-demo.cc b/src/error-demo/error-demo.cc index 89ba5a78d..41293427c 100644 --- a/src/error-demo/error-demo.cc +++ b/src/error-demo/error-demo.cc @@ -126,17 +126,28 @@ int main() // Error with previous and next lines of code. logError( ErrorInfo { .name = "error name", - .description = "error description", + .description = "error with code lines", .hint = hintfmt("this hint has %1% templated %2%!!", "yellow", "values"), .nixCode = NixCode { .errPos = Pos(problem_file, 40, 13), - .prevLineOfCode = std::optional("previous line of code"), + .prevLineOfCode = "previous line of code", .errLineOfCode = "this is the problem line of code", - .nextLineOfCode = std::optional("next line of code"), + .nextLineOfCode = "next line of code", }}); + // Error without lines of code. + logError( + ErrorInfo { .name = "error name", + .description = "error without any code lines.", + .hint = hintfmt("this hint has %1% templated %2%!!", + "yellow", + "values"), + .nixCode = NixCode { + .errPos = Pos(problem_file, 40, 13) + }}); + return 0; } diff --git a/src/libexpr/attr-set.hh b/src/libexpr/attr-set.hh index 118c7bd5d..f5651891f 100644 --- a/src/libexpr/attr-set.hh +++ b/src/libexpr/attr-set.hh @@ -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; } diff --git a/src/libexpr/eval-inline.hh b/src/libexpr/eval-inline.hh index 4d82ccf09..d03633cc7 100644 --- a/src/libexpr/eval-inline.hh +++ b/src/libexpr/eval-inline.hh @@ -9,7 +9,11 @@ namespace nix { LocalNoInlineNoReturn(void throwEvalError(const char * s, const Pos & pos)) { - throw EvalError(s, pos); + throw EvalError( + ErrorInfo { + .hint = hintfmt(s), + .nixCode = NixCode { .errPos = pos } + }); } LocalNoInlineNoReturn(void throwTypeError(const char * s, const Value & v)) @@ -20,7 +24,11 @@ LocalNoInlineNoReturn(void throwTypeError(const char * s, const Value & v)) LocalNoInlineNoReturn(void throwTypeError(const char * s, const Value & v, const Pos & pos)) { - throw TypeError(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("infinite recursion encountered", pos); } @@ -59,7 +67,7 @@ inline void EvalState::forceAttrs(Value & v, const Pos & pos) { forceValue(v); if (v.type != tAttrs) - throwTypeError("value is %1% while a set was expected, at %2%", v, pos); + throwTypeError("value is %1% while a set was expected", v, pos); } @@ -75,7 +83,7 @@ inline void EvalState::forceList(Value & v, const Pos & pos) { forceValue(v); if (!v.isList()) - throwTypeError("value is %1% while a list was expected, at %2%", v, pos); + throwTypeError("value is %1% while a list was expected", v, pos); } /* Note: Various places expect the allocated memory to be zeroed. */ diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc index 516c25b02..a19b85be4 100644 --- a/src/libexpr/eval.cc +++ b/src/libexpr/eval.cc @@ -498,7 +498,11 @@ LocalNoInlineNoReturn(void throwEvalError(const char * s, const string & s2)) LocalNoInlineNoReturn(void throwEvalError(const char * s, const string & s2, const Pos & pos)) { - throw EvalError(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)) @@ -508,7 +512,11 @@ LocalNoInlineNoReturn(void throwEvalError(const char * s, const string & s2, con LocalNoInlineNoReturn(void throwEvalError(const char * s, const string & s2, const string & s3, const Pos & pos)) { - throw EvalError(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)) @@ -518,7 +526,11 @@ LocalNoInlineNoReturn(void throwEvalError(const char * s, const Symbol & sym, co LocalNoInlineNoReturn(void throwTypeError(const char * s, const Pos & pos)) { - throw TypeError(s, pos); + throw TypeError( + ErrorInfo { + .hint = hintfmt(s), + .nixCode = NixCode { .errPos = pos } + }); } LocalNoInlineNoReturn(void throwTypeError(const char * s, const string & s1)) @@ -528,17 +540,29 @@ LocalNoInlineNoReturn(void throwTypeError(const char * s, const string & s1)) LocalNoInlineNoReturn(void throwTypeError(const char * s, const ExprLambda & fun, const Symbol & s2, const Pos & pos)) { - throw TypeError(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)) { - throw AssertionError(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)) { - throw UndefinedVarError(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)) @@ -804,7 +828,7 @@ 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("value is %1% while a Boolean was expected", v, pos); return v.boolean; } @@ -1006,7 +1030,7 @@ 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("attribute '%1%' missing", name, pos); } vAttrs = j->value; pos2 = j->pos; @@ -1132,7 +1156,7 @@ 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("attempt to call something which is not a function but %1%", fun, pos); ExprLambda & lambda(*fun.lambda.fun); @@ -1160,7 +1184,7 @@ 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%", + if (!i.def) throwTypeError("%1% called without required argument '%2%'", lambda, i.name, pos); env2.values[displ++] = i.def->maybeThunk(*this, env2); } else { @@ -1176,7 +1200,7 @@ 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("%1% called with unexpected argument '%2%'", lambda, i.name, pos); abort(); // can't happen } } @@ -1417,14 +1441,14 @@ 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("cannot add %1% to an integer", showType(vTmp), pos); } 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("cannot add %1% to a float", showType(vTmp), pos); } else s << state.coerceToString(pos, vTmp, context, false, firstType == tString); } @@ -1435,7 +1459,7 @@ 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("a string that refers to a store path cannot be appended to a path", pos); auto path = canonPath(s.str()); mkPath(v, path.c_str()); } else @@ -1484,7 +1508,7 @@ 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("value is %1% while an integer was expected", v, pos); return v.integer; } @@ -1495,7 +1519,7 @@ 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("value is %1% while a float was expected", v, pos); return v.fpoint; } @@ -1504,7 +1528,7 @@ bool EvalState::forceBool(Value & v, const Pos & pos) { forceValue(v); if (v.type != tBool) - throwTypeError("value is %1% while a Boolean was expected, at %2%", v, pos); + throwTypeError("value is %1% while a Boolean was expected", v, pos); return v.boolean; } @@ -1519,7 +1543,7 @@ void EvalState::forceFunction(Value & v, const Pos & pos) { forceValue(v); 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("value is %1% while a function was expected", v, pos); } @@ -1528,7 +1552,7 @@ 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("value is %1% while a string was expected", v, pos); else throwTypeError("value is %1% while a string was expected", v); } @@ -1557,7 +1581,7 @@ 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%", + throwEvalError("the string '%1%' is not allowed to refer to a store path (such as '%2%')", v.string.s, v.string.context[0], pos); else throwEvalError("the string '%1%' is not allowed to refer to a store path (such as '%2%')", @@ -1614,7 +1638,7 @@ 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("cannot coerce a set to a string", pos); return coerceToString(pos, *i->value, context, coerceMore, copyToStore); } @@ -1645,7 +1669,7 @@ string EvalState::coerceToString(const Pos & pos, Value & v, PathSet & context, } } - throwTypeError("cannot coerce %1% to a string, at %2%", v, pos); + throwTypeError("cannot coerce %1% to a string", v, pos); } @@ -1676,7 +1700,7 @@ 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("string '%1%' doesn't represent an absolute path", path, pos); return path; } @@ -1883,7 +1907,11 @@ void EvalState::printStats() string ExternalValueBase::coerceToString(const Pos & pos, PathSet & context, bool copyMore, bool copyToStore) const { - throw TypeError("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 } + }); } diff --git a/src/libexpr/parser.y b/src/libexpr/parser.y index 3ed9a7a4f..a3ad54a3d 100644 --- a/src/libexpr/parser.y +++ b/src/libexpr/parser.y @@ -404,7 +404,12 @@ 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; } @@ -669,10 +674,12 @@ Path EvalState::findFile(SearchPath & searchPath, const string & path, const Pos Path res = r.second + suffix; if (pathExists(res)) return canonPath(res); } - string f = - "file '%1%' was not found in the Nix search path (add it using $NIX_PATH or -I)" - + string(pos ? ", at %2%" : ""); - 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 } + }); } diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index 13eb1ba58..771136af9 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -94,8 +94,13 @@ static void prim_scopedImport(EvalState & state, const Pos & pos, Value * * args try { state.realiseContext(context); } catch (InvalidPathError & e) { - throw EvalError("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)); @@ -171,8 +176,13 @@ void prim_importNative(EvalState & state, const Pos & pos, Value * * args, Value try { state.realiseContext(context); } catch (InvalidPathError & e) { - throw EvalError("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); @@ -207,7 +217,11 @@ 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("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); @@ -218,9 +232,12 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v) try { state.realiseContext(context); } catch (InvalidPathError & e) { - throw EvalError("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; @@ -371,7 +388,11 @@ 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("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; @@ -382,7 +403,11 @@ 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("attribute 'operator' required, at %1%", pos); + throw EvalError( + ErrorInfo { + .hint = hintfmt("attribute 'operator' required"), + .nixCode = NixCode { .errPos = pos } + }); state.forceValue(*op->value); /* Construct the closure by applying the operator to element of @@ -401,7 +426,11 @@ 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("attribute 'key' required, at %1%", pos); + throw EvalError( + ErrorInfo { + .hint = hintfmt("attribute 'key' required"), + .nixCode = NixCode { .errPos = pos } + }); state.forceValue(*key->value); if (!doneKeys.insert(key->value).second) continue; @@ -533,7 +562,11 @@ 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("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 { @@ -576,25 +609,45 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * auto handleHashMode = [&](const std::string & s) { if (s == "recursive") outputHashRecursive = true; else if (s == "flat") outputHashRecursive = false; - 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("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("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("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 { @@ -706,18 +759,37 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * /* Do we have all required attributes? */ if (drv.builder == "") - throw EvalError("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("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("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); Hash h(*outputHash, ht); @@ -818,7 +890,11 @@ 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("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)); @@ -835,8 +911,12 @@ static void prim_pathExists(EvalState & state, const Pos & pos, Value * * args, state.realiseContext(context); } catch (InvalidPathError & e) { throw EvalError( - "cannot check the existence of '%1%', since path '%2%' is not valid, at %3%", - path, e.path, pos); + ErrorInfo { + .hint = hintfmt( + "cannot check the existence of '%1%', since path '%2%' is not valid", + path, e.path), + .nixCode = NixCode { .errPos = pos } + }); } try { @@ -879,9 +959,13 @@ static void prim_readFile(EvalState & state, const Pos & pos, Value * * args, Va try { state.realiseContext(context); } catch (InvalidPathError & e) { - throw EvalError("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("the contents of the file '%1%' cannot be represented as a Nix string", path); @@ -908,7 +992,11 @@ 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("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); @@ -916,8 +1004,12 @@ static void prim_findFile(EvalState & state, const Pos & pos, Value * * args, Va try { state.realiseContext(context); } catch (InvalidPathError & e) { - throw EvalError("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); @@ -934,7 +1026,11 @@ 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("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); @@ -950,8 +1046,12 @@ static void prim_readDir(EvalState & state, const Pos & pos, Value * * args, Val try { state.realiseContext(ctx); } catch (InvalidPathError & e) { - throw EvalError("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)); @@ -1021,7 +1121,13 @@ static void prim_toFile(EvalState & state, const Pos & pos, Value * * args, Valu for (auto path : context) { if (path.at(0) != '/') - throw EvalError("in 'toFile': the file '%1%' cannot refer to derivation outputs, at %2%", name, pos); + throw EvalError( + ErrorInfo { + .hint = hintfmt( + "in 'toFile': the file '%1%' cannot refer to derivation outputs", \ + name), + .nixCode = NixCode { .errPos = pos } + }); refs.insert(state.store->parseStorePath(path)); } @@ -1089,11 +1195,21 @@ 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("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]); if (args[0]->type != tLambda) - throw TypeError("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], true, Hash(), v); } @@ -1113,7 +1229,13 @@ 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("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") { @@ -1124,10 +1246,19 @@ static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value else if (n == "sha256") expectedHash = Hash(state.forceStringNoCtx(*attr.value, *attr.pos), htSHA256); else - throw EvalError("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("'path' required, at %1%", pos); + throw EvalError( + ErrorInfo { + .hint = hintfmt("'path' required"), + .nixCode = NixCode { .errPos = pos } + }); if (name.empty()) name = baseNameOf(path); @@ -1185,7 +1316,12 @@ 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("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); @@ -1265,14 +1401,23 @@ 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("'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("'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)); } @@ -1346,7 +1491,12 @@ static void prim_functionArgs(EvalState & state, const Pos & pos, Value * * args { state.forceValue(*args[0]); if (args[0]->type != tLambda) - throw TypeError("'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); @@ -1396,7 +1546,12 @@ 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("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]); v = *list.listElems()[n]; } @@ -1423,7 +1578,12 @@ static void prim_tail(EvalState & state, const Pos & pos, Value * * args, Value { state.forceList(*args[0], pos); if (args[0]->listSize() == 0) - throw Error("'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]; @@ -1564,7 +1724,12 @@ static void prim_genList(EvalState & state, const Pos & pos, Value * * args, Val auto len = state.forceInt(*args[1], pos); if (len < 0) - throw EvalError("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); @@ -1722,7 +1887,12 @@ 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("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)); @@ -1731,7 +1901,12 @@ 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::min() && i2 == -1) - throw EvalError("overflow in integer division, at %1%", pos); + throw EvalError( + ErrorInfo { + .hint = hintfmt("overflow in integer division"), + .nixCode = NixCode { .errPos = pos } + }); + mkInt(v, i1 / i2); } } @@ -1787,7 +1962,12 @@ 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("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); } @@ -1807,7 +1987,11 @@ 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("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); @@ -1849,10 +2033,18 @@ 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 } + }); } } } @@ -1917,10 +2109,18 @@ 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); - } else { - throw EvalError("invalid regular expression '%s', at %s", re, pos); - } + throw EvalError( + ErrorInfo { + .hint = hintfmt("memory limit exceeded by regular expression '%s'", re), + .nixCode = NixCode { .errPos = pos } + }); + } else { + throw EvalError( + ErrorInfo { + .hint = hintfmt("invalid regular expression '%s'", re), + .nixCode = NixCode { .errPos = pos } + }); + } } } @@ -1950,7 +2150,11 @@ 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("'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 from; from.reserve(args[0]->listSize()); @@ -2072,11 +2276,20 @@ void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v, else if (n == "name") request.name = state.forceStringNoCtx(*attr.value, *attr.pos); else - throw EvalError("unsupported argument '%1%' to '%2%', at %3%", attr.name, who, attr.pos); + throw EvalError( + ErrorInfo { + .hint = hintfmt("unsupported argument '%1%' to '%2%'", attr.name, who), + .nixCode = NixCode { .errPos = pos } + }); + } if (request.uri.empty()) - throw EvalError("'url' argument required, at %1%", pos); + throw EvalError( + ErrorInfo { + .hint = hintfmt("'url' argument required"), + .nixCode = NixCode { .errPos = pos } + }); } else request.uri = state.forceStringNoCtx(*args[0], pos); diff --git a/src/libexpr/primops/context.cc b/src/libexpr/primops/context.cc index 94fa0158c..768936453 100644 --- a/src/libexpr/primops/context.cc +++ b/src/libexpr/primops/context.cc @@ -146,7 +146,12 @@ 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 +165,12 @@ 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 +180,11 @@ 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); diff --git a/src/libexpr/primops/fetchGit.cc b/src/libexpr/primops/fetchGit.cc index 480cc1adc..68ffed513 100644 --- a/src/libexpr/primops/fetchGit.cc +++ b/src/libexpr/primops/fetchGit.cc @@ -217,11 +217,19 @@ static void prim_fetchGit(EvalState & state, const Pos & pos, Value * * args, Va else if (n == "name") name = state.forceStringNoCtx(*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("'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); diff --git a/src/libexpr/primops/fetchMercurial.cc b/src/libexpr/primops/fetchMercurial.cc index 76029f548..ce99928e2 100644 --- a/src/libexpr/primops/fetchMercurial.cc +++ b/src/libexpr/primops/fetchMercurial.cc @@ -187,11 +187,20 @@ 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("'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); diff --git a/src/libutil/error.cc b/src/libutil/error.cc index d4305ddd8..ce5dde6c3 100644 --- a/src/libutil/error.cc +++ b/src/libutil/error.cc @@ -1,4 +1,4 @@ -#include "types.hh" +#include "error.hh" #include #include @@ -25,54 +25,60 @@ std::ostream& operator<<(std::ostream &os, const hintformat &hf) string showErrPos(const ErrPos &errPos) { - if (errPos.column > 0) { - return fmt("(%1%:%2%)", errPos.line, errPos.column); - } else { - return fmt("(%1%)", errPos.line); - }; + if (errPos.line > 0) { + if (errPos.column > 0) { + return fmt("(%1%:%2%)", errPos.line, errPos.column); + } else { + return fmt("(%1%)", errPos.line); + } + } + else { + return ""; + } } -void printCodeLines(const string &prefix, const NixCode &nixCode) +void printCodeLines(std::ostream &out, const string &prefix, const NixCode &nixCode) { // previous line of code. if (nixCode.prevLineOfCode.has_value()) { - std::cout << fmt("%1% %|2$5d|| %3%", + out << fmt("%1% %|2$5d|| %3%", prefix, (nixCode.errPos.line - 1), *nixCode.prevLineOfCode) - << std::endl; + << std::endl; } - // line of code containing the error.%2$+5d% - std::cout << fmt("%1% %|2$5d|| %3%", - prefix, - (nixCode.errPos.line), - nixCode.errLineOfCode) - << std::endl; - - // error arrows for the column range. - if (nixCode.errPos.column > 0) { - int start = nixCode.errPos.column; - std::string spaces; - for (int i = 0; i < start; ++i) { - spaces.append(" "); - } - - std::string arrows("^"); - - std::cout << fmt("%1% |%2%" ANSI_RED "%3%" ANSI_NORMAL, + if (nixCode.errLineOfCode.has_value()) { + // line of code containing the error. + out << fmt("%1% %|2$5d|| %3%", prefix, - spaces, - arrows) << std::endl; + (nixCode.errPos.line), + *nixCode.errLineOfCode) + << std::endl; + // error arrows for the column range. + if (nixCode.errPos.column > 0) { + int start = nixCode.errPos.column; + std::string spaces; + for (int i = 0; i < start; ++i) { + spaces.append(" "); + } + + std::string arrows("^"); + + out << fmt("%1% |%2%" ANSI_RED "%3%" ANSI_NORMAL, + prefix, + spaces, + arrows) << std::endl; + } } // next line of code. if (nixCode.nextLineOfCode.has_value()) { - std::cout << fmt("%1% %|2$5d|| %3%", + out << fmt("%1% %|2$5d|| %3%", prefix, (nixCode.errPos.line + 1), *nixCode.nextLineOfCode) - << std::endl; + << std::endl; } } @@ -83,52 +89,52 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo) string levelString; switch (einfo.level) { - case Verbosity::lvlError: { - levelString = ANSI_RED; - levelString += "error:"; - levelString += ANSI_NORMAL; - break; - } - case Verbosity::lvlWarn: { - levelString = ANSI_YELLOW; - levelString += "warning:"; - levelString += ANSI_NORMAL; - break; - } - case Verbosity::lvlInfo: { - levelString = ANSI_GREEN; - levelString += "info:"; - levelString += ANSI_NORMAL; - break; - } - case Verbosity::lvlTalkative: { - levelString = ANSI_GREEN; - levelString += "talk:"; - levelString += ANSI_NORMAL; - break; - } - case Verbosity::lvlChatty: { - levelString = ANSI_GREEN; - levelString += "chat:"; - levelString += ANSI_NORMAL; - break; - } - case Verbosity::lvlVomit: { - levelString = ANSI_GREEN; - levelString += "vomit:"; - levelString += ANSI_NORMAL; - break; - } - case Verbosity::lvlDebug: { - levelString = ANSI_YELLOW; - levelString += "debug:"; - levelString += ANSI_NORMAL; - break; - } - default: { - levelString = fmt("invalid error level: %1%", einfo.level); - break; - } + case Verbosity::lvlError: { + levelString = ANSI_RED; + levelString += "error:"; + levelString += ANSI_NORMAL; + break; + } + case Verbosity::lvlWarn: { + levelString = ANSI_YELLOW; + levelString += "warning:"; + levelString += ANSI_NORMAL; + break; + } + case Verbosity::lvlInfo: { + levelString = ANSI_GREEN; + levelString += "info:"; + levelString += ANSI_NORMAL; + break; + } + case Verbosity::lvlTalkative: { + levelString = ANSI_GREEN; + levelString += "talk:"; + levelString += ANSI_NORMAL; + break; + } + case Verbosity::lvlChatty: { + levelString = ANSI_GREEN; + levelString += "chat:"; + levelString += ANSI_NORMAL; + break; + } + case Verbosity::lvlVomit: { + levelString = ANSI_GREEN; + levelString += "vomit:"; + levelString += ANSI_NORMAL; + break; + } + case Verbosity::lvlDebug: { + levelString = ANSI_YELLOW; + levelString += "debug:"; + levelString += ANSI_NORMAL; + break; + } + default: { + levelString = fmt("invalid error level: %1%", einfo.level); + break; + } } int ndl = prefix.length() + levelString.length() + 3 + einfo.name.length() + einfo.programName.value_or("").length(); @@ -158,14 +164,10 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo) // filename. if (einfo.nixCode.has_value()) { if (einfo.nixCode->errPos.file != "") { - string eline = einfo.nixCode->errLineOfCode != "" - ? string(" ") + showErrPos(einfo.nixCode->errPos) - : ""; - - out << fmt("%1%in file: " ANSI_BLUE "%2%%3%" ANSI_NORMAL, + out << fmt("%1%in file: " ANSI_BLUE "%2% %3%" ANSI_NORMAL, prefix, einfo.nixCode->errPos.file, - eline) << std::endl; + showErrPos(einfo.nixCode->errPos)) << std::endl; out << prefix << std::endl; } else { out << fmt("%1%from command line argument", prefix) << std::endl; @@ -180,8 +182,8 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo) } // lines of code. - if (einfo.nixCode.has_value() && einfo.nixCode->errLineOfCode != "") { - printCodeLines(prefix, *einfo.nixCode); + if (einfo.nixCode.has_value()) { + printCodeLines(out, prefix, *einfo.nixCode); out << prefix << std::endl; } diff --git a/src/libutil/error.hh b/src/libutil/error.hh index 19a806cc1..7e2cca2f9 100644 --- a/src/libutil/error.hh +++ b/src/libutil/error.hh @@ -35,10 +35,15 @@ typedef enum { } Verbosity; struct ErrPos { - int line; - int column; + int line = 0; + int column = 0; string file; + operator bool() const + { + return line != 0; + } + template ErrPos& operator=(const P &pos) { @@ -58,7 +63,7 @@ struct ErrPos { struct NixCode { ErrPos errPos; std::optional prevLineOfCode; - string errLineOfCode; + std::optional errLineOfCode; std::optional nextLineOfCode; }; diff --git a/src/libutil/logging.cc b/src/libutil/logging.cc index e1750eb2a..4244d1221 100644 --- a/src/libutil/logging.cc +++ b/src/libutil/logging.cc @@ -171,7 +171,8 @@ struct JSONLogger : Logger { json["file"] = ei.nixCode->errPos.file; if (ei.nixCode->prevLineOfCode.has_value()) json["prevLineOfCode"] = *ei.nixCode->prevLineOfCode; - json["errLineOfCode"] = ei.nixCode->errLineOfCode; + if (ei.nixCode->errLineOfCode.has_value()) + json["errLineOfCode"] = *ei.nixCode->errLineOfCode; if (ei.nixCode->nextLineOfCode.has_value()) json["nextLineOfCode"] = *ei.nixCode->nextLineOfCode; } diff --git a/tests/misc.sh b/tests/misc.sh index eda016416..fd4908e25 100644 --- a/tests/misc.sh +++ b/tests/misc.sh @@ -16,4 +16,6 @@ nix-env --foo 2>&1 | grep "no operation" nix-env -q --foo 2>&1 | grep "unknown flag" # Eval Errors. -nix-instantiate --eval -E 'let a = {} // a; in a.foo' 2>&1 | grep "infinite recursion encountered, at .*(string).*:1:15$" +eval_res=$(nix-instantiate --eval -E 'let a = {} // a; in a.foo' 2>&1 || true) +echo $eval_res | grep "(string) (1:15)" +echo $eval_res | grep "infinite recursion encountered"