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Add tests for error traces, and fixes
This commit is contained in:
Guillaume Maudoux
parent
e4726a0c79
commit
ca7c5e08c1
@ -11,7 +11,9 @@
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#include <algorithm>
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#include <chrono>
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#include <iostream>
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#include <cstring>
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#include <optional>
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#include <unistd.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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@ -1927,7 +1929,9 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
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/* skip canonization of first path, which would only be not
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canonized in the first place if it's coming from a ./${foo} type
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path */
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auto part = state.coerceToString(i_pos, vTmp, context, false, firstType == nString, !first, "while evaluating a path segment");
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auto part = state.coerceToString(i_pos, vTmp, context,
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"while evaluating a path segment",
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false, firstType == nString, !first);
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sSize += part->size();
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s.emplace_back(std::move(part));
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}
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@ -2123,15 +2127,16 @@ std::optional<std::string> EvalState::tryAttrsToString(const PosIdx pos, Value &
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if (i != v.attrs->end()) {
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Value v1;
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callFunction(*i->value, v, v1, pos);
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return coerceToString(pos, v1, context, coerceMore, copyToStore,
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"while evaluating the result of the `toString` attribute").toOwned();
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return coerceToString(pos, v1, context,
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"while evaluating the result of the `toString` attribute",
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coerceMore, copyToStore).toOwned();
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}
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return {};
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}
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BackedStringView EvalState::coerceToString(const PosIdx pos, Value & v, PathSet & context,
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bool coerceMore, bool copyToStore, bool canonicalizePath, std::string_view errorCtx)
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BackedStringView EvalState::coerceToString(const PosIdx pos, Value &v, PathSet &context,
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std::string_view errorCtx, bool coerceMore, bool copyToStore, bool canonicalizePath)
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{
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forceValue(v, pos);
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@ -2154,13 +2159,23 @@ BackedStringView EvalState::coerceToString(const PosIdx pos, Value & v, PathSet
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if (maybeString)
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return std::move(*maybeString);
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auto i = v.attrs->find(sOutPath);
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if (i == v.attrs->end())
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error("cannot coerce a set to a string", showType(v)).withTrace(pos, errorCtx).debugThrow<TypeError>();
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return coerceToString(pos, *i->value, context, coerceMore, copyToStore, canonicalizePath, errorCtx);
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if (i == v.attrs->end()) {
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error("cannot coerce %1% to a string", showType(v))
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.withTrace(pos, errorCtx)
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.debugThrow<TypeError>();
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}
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return coerceToString(pos, *i->value, context, errorCtx,
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coerceMore, copyToStore, canonicalizePath);
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}
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if (v.type() == nExternal)
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return v.external->coerceToString(positions[pos], context, coerceMore, copyToStore, errorCtx);
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if (v.type() == nExternal) {
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try {
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return v.external->coerceToString(positions[pos], context, coerceMore, copyToStore);
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} catch (Error & e) {
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e.addTrace(nullptr, errorCtx);
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throw;
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}
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}
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if (coerceMore) {
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/* Note that `false' is represented as an empty string for
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@ -2175,8 +2190,9 @@ BackedStringView EvalState::coerceToString(const PosIdx pos, Value & v, PathSet
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std::string result;
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for (auto [n, v2] : enumerate(v.listItems())) {
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try {
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result += *coerceToString(noPos, *v2, context, coerceMore, copyToStore, canonicalizePath,
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"while evaluating one element of the list");
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result += *coerceToString(noPos, *v2, context,
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"while evaluating one element of the list",
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coerceMore, copyToStore, canonicalizePath);
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} catch (Error & e) {
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e.addTrace(positions[pos], errorCtx);
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throw;
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@ -2190,7 +2206,9 @@ BackedStringView EvalState::coerceToString(const PosIdx pos, Value & v, PathSet
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}
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}
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error("cannot coerce %1% to a string", showType(v)).withTrace(pos, errorCtx).debugThrow<TypeError>();
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error("cannot coerce %1% to a string", showType(v))
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.withTrace(pos, errorCtx)
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.debugThrow<TypeError>();
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}
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@ -2220,7 +2238,7 @@ StorePath EvalState::copyPathToStore(PathSet & context, const Path & path)
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Path EvalState::coerceToPath(const PosIdx pos, Value & v, PathSet & context, std::string_view errorCtx)
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{
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auto path = coerceToString(pos, v, context, false, false, true, errorCtx).toOwned();
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auto path = coerceToString(pos, v, context, errorCtx, false, false, true).toOwned();
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if (path == "" || path[0] != '/')
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error("string '%1%' doesn't represent an absolute path", path).withTrace(pos, errorCtx).debugThrow<EvalError>();
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return path;
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@ -2229,7 +2247,7 @@ Path EvalState::coerceToPath(const PosIdx pos, Value & v, PathSet & context, std
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StorePath EvalState::coerceToStorePath(const PosIdx pos, Value & v, PathSet & context, std::string_view errorCtx)
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{
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auto path = coerceToString(pos, v, context, false, false, true, errorCtx).toOwned();
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auto path = coerceToString(pos, v, context, errorCtx, false, false, true).toOwned();
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if (auto storePath = store->maybeParseStorePath(path))
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return *storePath;
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error("path '%1%' is not in the Nix store", path).withTrace(pos, errorCtx).debugThrow<EvalError>();
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@ -2433,13 +2451,11 @@ void EvalState::printStats()
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}
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std::string ExternalValueBase::coerceToString(const Pos & pos, PathSet & context, bool copyMore, bool copyToStore, std::string_view errorCtx) const
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std::string ExternalValueBase::coerceToString(const Pos & pos, PathSet & context, bool copyMore, bool copyToStore) const
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{
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auto e = TypeError({
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throw TypeError({
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.msg = hintfmt("cannot coerce %1% to a string", showType())
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});
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e.addTrace(pos, errorCtx);
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throw e;
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}
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@ -375,9 +375,9 @@ public:
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booleans and lists to a string. If `copyToStore' is set,
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referenced paths are copied to the Nix store as a side effect. */
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BackedStringView coerceToString(const PosIdx pos, Value & v, PathSet & context,
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std::string_view errorCtx,
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bool coerceMore = false, bool copyToStore = true,
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bool canonicalizePath = true,
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std::string_view errorCtx = "");
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bool canonicalizePath = true);
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StorePath copyPathToStore(PathSet & context, const Path & path);
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@ -264,7 +264,7 @@ static Flake getFlake(
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PathSet emptyContext = {};
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flake.config.settings.emplace(
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state.symbols[setting.name],
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state.coerceToString(setting.pos, *setting.value, emptyContext, false, true, true, "") .toOwned());
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state.coerceToString(setting.pos, *setting.value, emptyContext, "", false, true, true) .toOwned());
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}
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else if (setting.value->type() == nInt)
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flake.config.settings.emplace(
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@ -350,26 +350,22 @@ void prim_exec(EvalState & state, const PosIdx pos, Value * * args, Value & v)
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auto elems = args[0]->listElems();
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auto count = args[0]->listSize();
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if (count == 0)
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state.debugThrowLastTrace(EvalError({
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.msg = hintfmt("at least one argument to 'exec' required"),
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.errPos = state.positions[pos]
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}));
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state.error("at least one argument to 'exec' required").atPos(pos).debugThrow<EvalError>();
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PathSet context;
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auto program = state.coerceToString(pos, *elems[0], context, false, false,
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"while evaluating the first element of the argument passed to builtins.exec").toOwned();
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auto program = state.coerceToString(pos, *elems[0], context,
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"while evaluating the first element of the argument passed to builtins.exec",
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false, false).toOwned();
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Strings commandArgs;
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for (unsigned int i = 1; i < args[0]->listSize(); ++i) {
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commandArgs.push_back(state.coerceToString(pos, *elems[i], context, false, false,
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"while evaluating an element of the argument passed to builtins.exec").toOwned());
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commandArgs.push_back(
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state.coerceToString(pos, *elems[i], context,
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"while evaluating an element of the argument passed to builtins.exec",
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false, false).toOwned());
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}
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try {
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auto _ = state.realiseContext(context); // FIXME: Handle CA derivations
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} catch (InvalidPathError & e) {
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state.debugThrowLastTrace(EvalError({
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.msg = hintfmt("cannot execute '%1%', since path '%2%' is not valid",
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program, e.path),
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.errPos = state.positions[pos]
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}));
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state.error("cannot execute '%1%', since path '%2%' is not valid", program, e.path).atPos(pos).debugThrow<EvalError>();
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}
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auto output = runProgram(program, true, commandArgs);
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@ -598,7 +594,8 @@ struct CompareValues
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state.error("cannot compare %s with %s; values of that type are incomparable", showType(*v1), showType(*v2)).debugThrow<EvalError>();
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}
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} catch (Error & e) {
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e.addTrace(nullptr, errorCtx);
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if (!errorCtx.empty())
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e.addTrace(nullptr, errorCtx);
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throw;
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}
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}
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@ -620,15 +617,7 @@ static Bindings::iterator getAttr(
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{
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Bindings::iterator value = attrSet->find(attrSym);
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if (value == attrSet->end()) {
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throw TypeError({
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.msg = hintfmt("attribute '%s' missing %s", state.symbols[attrSym], normaltxt(errorCtx)),
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.errPos = state.positions[attrSet->pos],
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});
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// TODO XXX
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// Adding another trace for the function name to make it clear
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// which call received wrong arguments.
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//e.addTrace(state.positions[pos], hintfmt("while invoking '%s'", funcName));
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//state.debugThrowLastTrace(e);
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state.error("attribute '%s' missing", state.symbols[attrSym]).withTrace(noPos, errorCtx).debugThrow<TypeError>();
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}
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return value;
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}
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@ -801,8 +790,10 @@ static void prim_addErrorContext(EvalState & state, const PosIdx pos, Value * *
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v = *args[1];
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} catch (Error & e) {
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PathSet context;
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e.addTrace(nullptr, state.coerceToString(pos, *args[0], context,
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"while evaluating the error message passed to builtins.addErrorContext").toOwned());
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auto message = state.coerceToString(pos, *args[0], context,
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"while evaluating the error message passed to builtins.addErrorContext",
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false, false).toOwned();
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e.addTrace(nullptr, message);
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throw;
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}
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}
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@ -1006,6 +997,7 @@ static void prim_second(EvalState & state, const PosIdx pos, Value * * args, Val
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* Derivations
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*************************************************************/
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static void derivationStrictInternal(EvalState & state, const std::string & name, Bindings * attrs, Value & v);
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/* Construct (as a unobservable side effect) a Nix derivation
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expression that performs the derivation described by the argument
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@ -1016,32 +1008,68 @@ static void prim_second(EvalState & state, const PosIdx pos, Value * * args, Val
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derivation. */
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static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * * args, Value & v)
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{
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using nlohmann::json;
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state.forceAttrs(*args[0], pos, "while evaluating the argument passed to builtins.derivationStrict");
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Bindings * attrs = args[0]->attrs;
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/* Figure out the name first (for stack backtraces). */
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Bindings::iterator attr = getAttr(state, state.sName, args[0]->attrs, "in the attrset passed as argument to builtins.derivationStrict");
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Bindings::iterator nameAttr = getAttr(state, state.sName, attrs, "in the attrset passed as argument to builtins.derivationStrict");
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std::string drvName;
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const auto posDrvName = attr->pos;
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try {
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drvName = state.forceStringNoCtx(*attr->value, pos, "while evaluating the `name` attribute passed to builtins.derivationStrict");
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drvName = state.forceStringNoCtx(*nameAttr->value, pos, "while evaluating the `name` attribute passed to builtins.derivationStrict");
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} catch (Error & e) {
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e.addTrace(state.positions[posDrvName], "while evaluating the derivation attribute 'name'");
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e.addTrace(state.positions[nameAttr->pos], "while evaluating the derivation attribute 'name'");
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throw;
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}
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try {
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derivationStrictInternal(state, drvName, attrs, v);
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} catch (Error & e) {
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Pos pos = state.positions[nameAttr->pos];
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/*
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* Here we make two abuses of the error system
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*
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* 1. We print the location as a string to avoid a code snippet being
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* printed. While the location of the name attribute is a good hint, the
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* exact code there is irrelevant.
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*
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* 2. We mark this trace as a frame trace, meaning that we stop printing
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* less important traces from now on. In particular, this prevents the
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* display of the automatic "while calling builtins.derivationStrict"
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* trace, which is of little use for the public we target here.
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*
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* Please keep in mind that error reporting is done on a best-effort
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* basis in nix. There is no accurate location for a derivation, as it
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* often results from the composition of several functions
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* (derivationStrict, derivation, mkDerivation, mkPythonModule, etc.)
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*/
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e.addTrace(nullptr, hintfmt(
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"while evaluating derivation '%s'\n"
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" whose name attribute is located at %s",
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drvName, pos), true);
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throw;
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}
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}
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static void derivationStrictInternal(EvalState & state, const std::string &
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drvName, Bindings * attrs, Value & v)
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{
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/* Check whether attributes should be passed as a JSON file. */
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using nlohmann::json;
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std::optional<json> jsonObject;
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attr = args[0]->attrs->find(state.sStructuredAttrs);
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if (attr != args[0]->attrs->end() && state.forceBool(*attr->value, pos, "while evaluating the `__structuredAttrs` attribute passed to builtins.derivationStrict"))
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auto attr = attrs->find(state.sStructuredAttrs);
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if (attr != attrs->end() &&
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state.forceBool(*attr->value, noPos,
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"while evaluating the `__structuredAttrs` "
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"attribute passed to builtins.derivationStrict"))
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jsonObject = json::object();
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/* Check whether null attributes should be ignored. */
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bool ignoreNulls = false;
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attr = args[0]->attrs->find(state.sIgnoreNulls);
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if (attr != args[0]->attrs->end())
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ignoreNulls = state.forceBool(*attr->value, pos, "while evaluating the `__ignoreNulls` attribute passed to builtins.derivationStrict");
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attr = attrs->find(state.sIgnoreNulls);
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if (attr != attrs->end())
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ignoreNulls = state.forceBool(*attr->value, noPos, "while evaluating the `__ignoreNulls` attribute " "passed to builtins.derivationStrict");
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/* Build the derivation expression by processing the attributes. */
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Derivation drv;
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@ -1058,7 +1086,7 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
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StringSet outputs;
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outputs.insert("out");
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for (auto & i : args[0]->attrs->lexicographicOrder(state.symbols)) {
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for (auto & i : attrs->lexicographicOrder(state.symbols)) {
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if (i->name == state.sIgnoreNulls) continue;
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const std::string & key = state.symbols[i->name];
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vomit("processing attribute '%1%'", key);
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@ -1069,7 +1097,7 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
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else
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state.debugThrowLastTrace(EvalError({
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.msg = hintfmt("invalid value '%s' for 'outputHashMode' attribute", s),
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.errPos = state.positions[posDrvName]
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.errPos = state.positions[noPos]
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}));
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};
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@ -1079,7 +1107,7 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
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if (outputs.find(j) != outputs.end())
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state.debugThrowLastTrace(EvalError({
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.msg = hintfmt("duplicate derivation output '%1%'", j),
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.errPos = state.positions[posDrvName]
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.errPos = state.positions[noPos]
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}));
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/* !!! Check whether j is a valid attribute
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name. */
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@ -1089,34 +1117,35 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
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if (j == "drv")
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state.debugThrowLastTrace(EvalError({
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.msg = hintfmt("invalid derivation output name 'drv'" ),
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.errPos = state.positions[posDrvName]
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.errPos = state.positions[noPos]
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}));
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outputs.insert(j);
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}
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if (outputs.empty())
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state.debugThrowLastTrace(EvalError({
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.msg = hintfmt("derivation cannot have an empty set of outputs"),
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.errPos = state.positions[posDrvName]
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.errPos = state.positions[noPos]
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}));
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};
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try {
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// This try-catch block adds context for most errors.
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// Use this empty error context to signify that we defer to it.
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const std::string_view context_below("");
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if (ignoreNulls) {
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state.forceValue(*i->value, pos);
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state.forceValue(*i->value, noPos);
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if (i->value->type() == nNull) continue;
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}
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if (i->name == state.sContentAddressed) {
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contentAddressed = state.forceBool(*i->value, pos,
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"while evaluating the `__contentAddressed` attribute passed to builtins.derivationStrict");
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contentAddressed = state.forceBool(*i->value, noPos, context_below);
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if (contentAddressed)
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settings.requireExperimentalFeature(Xp::CaDerivations);
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}
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else if (i->name == state.sImpure) {
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isImpure = state.forceBool(*i->value, pos,
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"while evaluating the 'impure' attribute passed to builtins.derivationStrict");
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isImpure = state.forceBool(*i->value, noPos, context_below);
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if (isImpure)
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settings.requireExperimentalFeature(Xp::ImpureDerivations);
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}
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@ -1124,11 +1153,11 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
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/* The `args' attribute is special: it supplies the
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command-line arguments to the builder. */
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else if (i->name == state.sArgs) {
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state.forceList(*i->value, pos,
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"while evaluating the `args` attribute passed to builtins.derivationStrict");
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state.forceList(*i->value, noPos, context_below);
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for (auto elem : i->value->listItems()) {
|
||||
auto s = state.coerceToString(posDrvName, *elem, context, true,
|
||||
"while evaluating an element of the `args` argument passed to builtins.derivationStrict").toOwned();
|
||||
auto s = state.coerceToString(noPos, *elem, context,
|
||||
"while evaluating an element of the argument list",
|
||||
true).toOwned();
|
||||
drv.args.push_back(s);
|
||||
}
|
||||
}
|
||||
@ -1141,29 +1170,29 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
|
||||
|
||||
if (i->name == state.sStructuredAttrs) continue;
|
||||
|
||||
(*jsonObject)[key] = printValueAsJSON(state, true, *i->value, pos, context);
|
||||
(*jsonObject)[key] = printValueAsJSON(state, true, *i->value, noPos, context);
|
||||
|
||||
if (i->name == state.sBuilder)
|
||||
drv.builder = state.forceString(*i->value, context, posDrvName, "while evaluating the `builder` attribute passed to builtins.derivationStrict");
|
||||
drv.builder = state.forceString(*i->value, context, noPos, context_below);
|
||||
else if (i->name == state.sSystem)
|
||||
drv.platform = state.forceStringNoCtx(*i->value, posDrvName, "while evaluating the `system` attribute passed to builtins.derivationStrict");
|
||||
drv.platform = state.forceStringNoCtx(*i->value, noPos, context_below);
|
||||
else if (i->name == state.sOutputHash)
|
||||
outputHash = state.forceStringNoCtx(*i->value, posDrvName, "while evaluating the `outputHash` attribute passed to builtins.derivationStrict");
|
||||
outputHash = state.forceStringNoCtx(*i->value, noPos, context_below);
|
||||
else if (i->name == state.sOutputHashAlgo)
|
||||
outputHashAlgo = state.forceStringNoCtx(*i->value, posDrvName, "while evaluating the `outputHashAlgo` attribute passed to builtins.derivationStrict");
|
||||
outputHashAlgo = state.forceStringNoCtx(*i->value, noPos, context_below);
|
||||
else if (i->name == state.sOutputHashMode)
|
||||
handleHashMode(state.forceStringNoCtx(*i->value, posDrvName, "while evaluating the `outputHashMode` attribute passed to builtins.derivationStrict"));
|
||||
handleHashMode(state.forceStringNoCtx(*i->value, noPos, context_below));
|
||||
else if (i->name == state.sOutputs) {
|
||||
/* Require ‘outputs’ to be a list of strings. */
|
||||
state.forceList(*i->value, posDrvName, "while evaluating the `outputs` attribute passed to builtins.derivationStrict");
|
||||
state.forceList(*i->value, noPos, context_below);
|
||||
Strings ss;
|
||||
for (auto elem : i->value->listItems())
|
||||
ss.emplace_back(state.forceStringNoCtx(*elem, posDrvName, "while evaluating an element of the `outputs` attribute passed to builtins.derivationStrict"));
|
||||
ss.emplace_back(state.forceStringNoCtx(*elem, noPos, context_below));
|
||||
handleOutputs(ss);
|
||||
}
|
||||
|
||||
} else {
|
||||
auto s = state.coerceToString(i->pos, *i->value, context, true, "while evaluating an attribute passed to builtins.derivationStrict").toOwned();
|
||||
auto s = state.coerceToString(noPos, *i->value, context, context_below, true).toOwned();
|
||||
drv.env.emplace(key, s);
|
||||
if (i->name == state.sBuilder) drv.builder = std::move(s);
|
||||
else if (i->name == state.sSystem) drv.platform = std::move(s);
|
||||
@ -1177,8 +1206,8 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
|
||||
}
|
||||
|
||||
} catch (Error & e) {
|
||||
e.addTrace(nullptr,
|
||||
hintfmt("while evaluating the attribute '%1%' of the derivation '%2%'", key, drvName),
|
||||
e.addTrace(state.positions[i->pos],
|
||||
hintfmt("while evaluating attribute '%1%' of derivation '%2%'", key, drvName),
|
||||
true);
|
||||
throw;
|
||||
}
|
||||
@ -1223,20 +1252,20 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
|
||||
if (drv.builder == "")
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("required attribute 'builder' missing"),
|
||||
.errPos = state.positions[posDrvName]
|
||||
.errPos = state.positions[noPos]
|
||||
}));
|
||||
|
||||
if (drv.platform == "")
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("required attribute 'system' missing"),
|
||||
.errPos = state.positions[posDrvName]
|
||||
.errPos = state.positions[noPos]
|
||||
}));
|
||||
|
||||
/* Check whether the derivation name is valid. */
|
||||
if (isDerivation(drvName))
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("derivation names are not allowed to end in '%s'", drvExtension),
|
||||
.errPos = state.positions[posDrvName]
|
||||
.errPos = state.positions[noPos]
|
||||
}));
|
||||
|
||||
if (outputHash) {
|
||||
@ -1247,7 +1276,7 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
|
||||
if (outputs.size() != 1 || *(outputs.begin()) != "out")
|
||||
state.debugThrowLastTrace(Error({
|
||||
.msg = hintfmt("multiple outputs are not supported in fixed-output derivations"),
|
||||
.errPos = state.positions[posDrvName]
|
||||
.errPos = state.positions[noPos]
|
||||
}));
|
||||
|
||||
auto h = newHashAllowEmpty(*outputHash, parseHashTypeOpt(outputHashAlgo));
|
||||
@ -1268,7 +1297,7 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
|
||||
if (contentAddressed && isImpure)
|
||||
throw EvalError({
|
||||
.msg = hintfmt("derivation cannot be both content-addressed and impure"),
|
||||
.errPos = state.positions[posDrvName]
|
||||
.errPos = state.positions[noPos]
|
||||
});
|
||||
|
||||
auto ht = parseHashTypeOpt(outputHashAlgo).value_or(htSHA256);
|
||||
@ -1312,7 +1341,7 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
|
||||
if (!h)
|
||||
throw AssertionError({
|
||||
.msg = hintfmt("derivation produced no hash for output '%s'", i),
|
||||
.errPos = state.positions[posDrvName],
|
||||
.errPos = state.positions[noPos],
|
||||
});
|
||||
auto outPath = state.store->makeOutputPath(i, *h, drvName);
|
||||
drv.env[i] = state.store->printStorePath(outPath);
|
||||
@ -1345,11 +1374,12 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
|
||||
drvHashes.lock()->insert_or_assign(drvPath, h);
|
||||
}
|
||||
|
||||
auto attrs = state.buildBindings(1 + drv.outputs.size());
|
||||
attrs.alloc(state.sDrvPath).mkString(drvPathS, {"=" + drvPathS});
|
||||
auto result = state.buildBindings(1 + drv.outputs.size());
|
||||
result.alloc(state.sDrvPath).mkString(drvPathS, {"=" + drvPathS});
|
||||
for (auto & i : drv.outputs)
|
||||
mkOutputString(state, attrs, drvPath, drv, i);
|
||||
v.mkAttrs(attrs);
|
||||
mkOutputString(state, result, drvPath, drv, i);
|
||||
|
||||
v.mkAttrs(result);
|
||||
}
|
||||
|
||||
static RegisterPrimOp primop_derivationStrict(RegisterPrimOp::Info {
|
||||
@ -1492,7 +1522,9 @@ static RegisterPrimOp primop_pathExists({
|
||||
static void prim_baseNameOf(EvalState & state, const PosIdx pos, Value * * args, Value & v)
|
||||
{
|
||||
PathSet context;
|
||||
v.mkString(baseNameOf(*state.coerceToString(pos, *args[0], context, false, false, "while evaluating the first argument passed to builtins.baseNameOf")), context);
|
||||
v.mkString(baseNameOf(*state.coerceToString(pos, *args[0], context,
|
||||
"while evaluating the first argument passed to builtins.baseNameOf",
|
||||
false, false)), context);
|
||||
}
|
||||
|
||||
static RegisterPrimOp primop_baseNameOf({
|
||||
@ -1512,7 +1544,9 @@ static RegisterPrimOp primop_baseNameOf({
|
||||
static void prim_dirOf(EvalState & state, const PosIdx pos, Value * * args, Value & v)
|
||||
{
|
||||
PathSet context;
|
||||
auto path = state.coerceToString(pos, *args[0], context, false, false, "while evaluating the first argument passed to builtins.dirOf");
|
||||
auto path = state.coerceToString(pos, *args[0], context,
|
||||
"while evaluating the first argument passed to builtins.dirOf",
|
||||
false, false);
|
||||
auto dir = dirOf(*path);
|
||||
if (args[0]->type() == nPath) v.mkPath(dir); else v.mkString(dir, context);
|
||||
}
|
||||
@ -1578,8 +1612,9 @@ static void prim_findFile(EvalState & state, const PosIdx pos, Value * * args, V
|
||||
i = getAttr(state, state.sPath, v2->attrs, "in an element of the __nixPath");
|
||||
|
||||
PathSet context;
|
||||
auto path = state.coerceToString(pos, *i->value, context, false, false,
|
||||
"while evaluating the `path` attribute of an element of the list passed to builtins.findFile").toOwned();
|
||||
auto path = state.coerceToString(pos, *i->value, context,
|
||||
"while evaluating the `path` attribute of an element of the list passed to builtins.findFile",
|
||||
false, false).toOwned();
|
||||
|
||||
try {
|
||||
auto rewrites = state.realiseContext(context);
|
||||
@ -2622,14 +2657,9 @@ static void prim_zipAttrsWith(EvalState & state, const PosIdx pos, Value * * arg
|
||||
|
||||
for (unsigned int n = 0; n < listSize; ++n) {
|
||||
Value * vElem = listElems[n];
|
||||
try {
|
||||
state.forceAttrs(*vElem, noPos, "while evaluating a value of the list passed as second argument to builtins.zipAttrsWith");
|
||||
for (auto & attr : *vElem->attrs)
|
||||
attrsSeen[attr.name].first++;
|
||||
} catch (TypeError & e) {
|
||||
e.addTrace(state.positions[pos], hintfmt("while invoking '%s'", "zipAttrsWith"));
|
||||
state.debugThrowLastTrace(e);
|
||||
}
|
||||
state.forceAttrs(*vElem, noPos, "while evaluating a value of the list passed as second argument to builtins.zipAttrsWith");
|
||||
for (auto & attr : *vElem->attrs)
|
||||
attrsSeen[attr.name].first++;
|
||||
}
|
||||
|
||||
auto attrs = state.buildBindings(attrsSeen.size());
|
||||
@ -3013,13 +3043,13 @@ static void prim_genList(EvalState & state, const PosIdx pos, Value * * args, Va
|
||||
auto len = state.forceInt(*args[1], pos, "while evaluating the second argument passed to builtins.genList");
|
||||
|
||||
if (len < 0)
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("cannot create list of size %1%", len),
|
||||
.errPos = state.positions[pos]
|
||||
}));
|
||||
state.error("cannot create list of size %1%", len).debugThrow<EvalError>();
|
||||
|
||||
// More strict than striclty (!) necessary, but acceptable
|
||||
// as evaluating map without accessing any values makes little sense.
|
||||
state.forceFunction(*args[0], noPos, "while evaluating the first argument passed to builtins.genList");
|
||||
|
||||
state.mkList(v, len);
|
||||
|
||||
for (unsigned int n = 0; n < (unsigned int) len; ++n) {
|
||||
auto arg = state.allocValue();
|
||||
arg->mkInt(n);
|
||||
@ -3067,6 +3097,8 @@ static void prim_sort(EvalState & state, const PosIdx pos, Value * * args, Value
|
||||
auto comparator = [&](Value * a, Value * b) {
|
||||
/* Optimization: if the comparator is lessThan, bypass
|
||||
callFunction. */
|
||||
/* TODO: (layus) this is absurd. An optimisation like this
|
||||
should be outside the lambda creation */
|
||||
if (args[0]->isPrimOp() && args[0]->primOp->fun == prim_lessThan)
|
||||
return CompareValues(state, noPos, "while evaluating the ordering function passed to builtins.sort")(a, b);
|
||||
|
||||
@ -3227,12 +3259,7 @@ static void prim_concatMap(EvalState & state, const PosIdx pos, Value * * args,
|
||||
for (unsigned int n = 0; n < nrLists; ++n) {
|
||||
Value * vElem = args[1]->listElems()[n];
|
||||
state.callFunction(*args[0], *vElem, lists[n], pos);
|
||||
try {
|
||||
state.forceList(lists[n], lists[n].determinePos(args[0]->determinePos(pos)), "while evaluating the return value of the function passed to buitlins.concatMap");
|
||||
} catch (TypeError &e) {
|
||||
e.addTrace(state.positions[pos], hintfmt("while invoking '%s'", "concatMap"));
|
||||
state.debugThrowLastTrace(e);
|
||||
}
|
||||
state.forceList(lists[n], lists[n].determinePos(args[0]->determinePos(pos)), "while evaluating the return value of the function passed to buitlins.concatMap");
|
||||
len += lists[n].listSize();
|
||||
}
|
||||
|
||||
@ -3412,7 +3439,7 @@ static void prim_lessThan(EvalState & state, const PosIdx pos, Value * * args, V
|
||||
state.forceValue(*args[0], pos);
|
||||
state.forceValue(*args[1], pos);
|
||||
// pos is exact here, no need for a message.
|
||||
CompareValues comp(state, pos, "");
|
||||
CompareValues comp(state, noPos, "");
|
||||
v.mkBool(comp(args[0], args[1]));
|
||||
}
|
||||
|
||||
@ -3439,7 +3466,9 @@ static RegisterPrimOp primop_lessThan({
|
||||
static void prim_toString(EvalState & state, const PosIdx pos, Value * * args, Value & v)
|
||||
{
|
||||
PathSet context;
|
||||
auto s = state.coerceToString(pos, *args[0], context, true, false, "while evaluating the first argument passed to builtins.toString");
|
||||
auto s = state.coerceToString(pos, *args[0], context,
|
||||
"while evaluating the first argument passed to builtins.toString",
|
||||
true, false);
|
||||
v.mkString(*s, context);
|
||||
}
|
||||
|
||||
@ -3791,21 +3820,18 @@ static void prim_replaceStrings(EvalState & state, const PosIdx pos, Value * * a
|
||||
state.forceList(*args[0], pos, "while evaluating the first argument passed to builtins.replaceStrings");
|
||||
state.forceList(*args[1], pos, "while evaluating the second argument passed to builtins.replaceStrings");
|
||||
if (args[0]->listSize() != args[1]->listSize())
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("'from' and 'to' arguments to 'replaceStrings' have different lengths"),
|
||||
.errPos = state.positions[pos]
|
||||
}));
|
||||
state.error("'from' and 'to' arguments passed to builtins.replaceStrings have different lengths").atPos(pos).debugThrow<EvalError>();
|
||||
|
||||
std::vector<std::string> from;
|
||||
from.reserve(args[0]->listSize());
|
||||
for (auto elem : args[0]->listItems())
|
||||
from.emplace_back(state.forceString(*elem, pos, "while evaluating one of the strings to replace in builtins.replaceStrings"));
|
||||
from.emplace_back(state.forceString(*elem, pos, "while evaluating one of the strings to replace passed to builtins.replaceStrings"));
|
||||
|
||||
std::vector<std::pair<std::string, PathSet>> to;
|
||||
to.reserve(args[1]->listSize());
|
||||
for (auto elem : args[1]->listItems()) {
|
||||
PathSet ctx;
|
||||
auto s = state.forceString(*elem, ctx, pos, "while evaluating one of the replacement strings of builtins.replaceStrings");
|
||||
auto s = state.forceString(*elem, ctx, pos, "while evaluating one of the replacement strings passed to builtins.replaceStrings");
|
||||
to.emplace_back(s, std::move(ctx));
|
||||
}
|
||||
|
||||
|
||||
@ -22,7 +22,9 @@ static void prim_fetchMercurial(EvalState & state, const PosIdx pos, Value * * a
|
||||
for (auto & attr : *args[0]->attrs) {
|
||||
std::string_view n(state.symbols[attr.name]);
|
||||
if (n == "url")
|
||||
url = state.coerceToString(attr.pos, *attr.value, context, false, false, "while evaluating the `url` attribute passed to builtins.fetchMercurial").toOwned();
|
||||
url = state.coerceToString(attr.pos, *attr.value, context,
|
||||
"while evaluating the `url` attribute passed to builtins.fetchMercurial",
|
||||
false, false).toOwned();
|
||||
else if (n == "rev") {
|
||||
// Ugly: unlike fetchGit, here the "rev" attribute can
|
||||
// be both a revision or a branch/tag name.
|
||||
@ -48,7 +50,9 @@ static void prim_fetchMercurial(EvalState & state, const PosIdx pos, Value * * a
|
||||
});
|
||||
|
||||
} else
|
||||
url = state.coerceToString(pos, *args[0], context, false, false, "while evaluating the first argument passed to builtins.fetchMercurial").toOwned();
|
||||
url = state.coerceToString(pos, *args[0], context,
|
||||
"while evaluating the first argument passed to builtins.fetchMercurial",
|
||||
false, false).toOwned();
|
||||
|
||||
// FIXME: git externals probably can be used to bypass the URI
|
||||
// whitelist. Ah well.
|
||||
|
||||
@ -125,7 +125,7 @@ static void fetchTree(
|
||||
if (attr.name == state.sType) continue;
|
||||
state.forceValue(*attr.value, attr.pos);
|
||||
if (attr.value->type() == nPath || attr.value->type() == nString) {
|
||||
auto s = state.coerceToString(attr.pos, *attr.value, context, false, false, "").toOwned();
|
||||
auto s = state.coerceToString(attr.pos, *attr.value, context, "", false, false).toOwned();
|
||||
attrs.emplace(state.symbols[attr.name],
|
||||
state.symbols[attr.name] == "url"
|
||||
? type == "git"
|
||||
@ -151,7 +151,9 @@ static void fetchTree(
|
||||
|
||||
input = fetchers::Input::fromAttrs(std::move(attrs));
|
||||
} else {
|
||||
auto url = state.coerceToString(pos, *args[0], context, false, false, "while evaluating the first argument passed to the fetcher").toOwned();
|
||||
auto url = state.coerceToString(pos, *args[0], context,
|
||||
"while evaluating the first argument passed to the fetcher",
|
||||
false, false).toOwned();
|
||||
|
||||
if (type == "git") {
|
||||
fetchers::Attrs attrs;
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@ -89,7 +89,7 @@ class ExternalValueBase
|
||||
/* Coerce the value to a string. Defaults to uncoercable, i.e. throws an
|
||||
* error.
|
||||
*/
|
||||
virtual std::string coerceToString(const Pos & pos, PathSet & context, bool copyMore, bool copyToStore, std::string_view errorCtx) const;
|
||||
virtual std::string coerceToString(const Pos & pos, PathSet & context, bool copyMore, bool copyToStore) const;
|
||||
|
||||
/* Compare to another value of the same type. Defaults to uncomparable,
|
||||
* i.e. always false.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user