Merge pull request #5416 from bburdette/debug-exploratory-PR
--debugger flag
This commit is contained in:
Eelco Dolstra
GitHub
commit
5f097fbcef
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@ -25,5 +25,18 @@
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Selecting derivation outputs using the attribute selection syntax
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(e.g. `nixpkgs#glibc.dev`) no longer works.
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* Running nix with the new `--debugger` flag will cause it to start a repl session if
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there is an exception thrown during eval, or if `builtins.break` is called. From
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there one can inspect symbol values and evaluate nix expressions. In debug mode
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the following new repl commands are available:
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```
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:env Show env stack
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:bt Show trace stack
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:st Show current trace
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:st <idx> Change to another trace in the stack
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:c Go until end of program, exception, or builtins.break().
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:s Go one step
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```
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* `builtins.fetchTree` (and flake inputs) can now be used to fetch plain files
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over the `http(s)` and `file` protocols in addition to directory tarballs.
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@ -86,6 +86,11 @@ ref<Store> CopyCommand::getDstStore()
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EvalCommand::EvalCommand()
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{
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addFlag({
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.longName = "debugger",
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.description = "start an interactive environment if evaluation fails",
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.handler = {&startReplOnEvalErrors, true},
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});
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}
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EvalCommand::~EvalCommand()
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@ -103,7 +108,7 @@ ref<Store> EvalCommand::getEvalStore()
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ref<EvalState> EvalCommand::getEvalState()
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{
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if (!evalState)
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if (!evalState) {
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evalState =
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#if HAVE_BOEHMGC
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std::allocate_shared<EvalState>(traceable_allocator<EvalState>(),
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@ -113,6 +118,11 @@ ref<EvalState> EvalCommand::getEvalState()
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searchPath, getEvalStore(), getStore())
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#endif
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;
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if (startReplOnEvalErrors) {
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evalState->debugRepl = &runRepl;
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};
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}
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return ref<EvalState>(evalState);
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}
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@ -57,6 +57,8 @@ struct CopyCommand : virtual StoreCommand
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struct EvalCommand : virtual StoreCommand, MixEvalArgs
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{
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bool startReplOnEvalErrors = false;
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EvalCommand();
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~EvalCommand();
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@ -270,4 +272,8 @@ void printClosureDiff(
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const StorePath & afterPath,
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std::string_view indent);
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void runRepl(
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ref<EvalState> evalState,
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const ValMap & extraEnv);
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}
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@ -6,9 +6,9 @@ libcmd_DIR := $(d)
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libcmd_SOURCES := $(wildcard $(d)/*.cc)
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libcmd_CXXFLAGS += -I src/libutil -I src/libstore -I src/libexpr -I src/libmain -I src/libfetchers
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libcmd_CXXFLAGS += -I src/libutil -I src/libstore -I src/libexpr -I src/libmain -I src/libfetchers -I src/nix
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libcmd_LDFLAGS += $(LOWDOWN_LIBS) -pthread
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libcmd_LDFLAGS = $(EDITLINE_LIBS) -llowdown -pthread
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libcmd_LIBS = libstore libutil libexpr libmain libfetchers
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@ -48,38 +48,42 @@ struct NixRepl
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#endif
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{
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std::string curDir;
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std::unique_ptr<EvalState> state;
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ref<EvalState> state;
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Bindings * autoArgs;
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size_t debugTraceIndex;
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Strings loadedFiles;
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const static int envSize = 32768;
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StaticEnv staticEnv;
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std::shared_ptr<StaticEnv> staticEnv;
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Env * env;
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int displ;
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StringSet varNames;
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const Path historyFile;
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NixRepl(const Strings & searchPath, nix::ref<Store> store);
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NixRepl(ref<EvalState> state);
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~NixRepl();
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void mainLoop(const std::vector<std::string> & files);
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StringSet completePrefix(const std::string & prefix);
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bool getLine(std::string & input, const std::string &prompt);
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bool getLine(std::string & input, const std::string & prompt);
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StorePath getDerivationPath(Value & v);
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bool processLine(std::string line);
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void loadFile(const Path & path);
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void loadFlake(const std::string & flakeRef);
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void initEnv();
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void loadFiles();
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void reloadFiles();
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void addAttrsToScope(Value & attrs);
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void addVarToScope(const Symbol name, Value & v);
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Expr * parseString(std::string s);
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void evalString(std::string s, Value & v);
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void loadDebugTraceEnv(DebugTrace & dt);
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typedef std::set<Value *> ValuesSeen;
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std::ostream & printValue(std::ostream & str, Value & v, unsigned int maxDepth);
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std::ostream & printValue(std::ostream & str, Value & v, unsigned int maxDepth, ValuesSeen & seen);
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std::ostream & printValue(std::ostream & str, Value & v, unsigned int maxDepth);
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std::ostream & printValue(std::ostream & str, Value & v, unsigned int maxDepth, ValuesSeen & seen);
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};
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@ -92,9 +96,10 @@ std::string removeWhitespace(std::string s)
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}
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NixRepl::NixRepl(const Strings & searchPath, nix::ref<Store> store)
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: state(std::make_unique<EvalState>(searchPath, store))
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, staticEnv(false, &state->staticBaseEnv)
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NixRepl::NixRepl(ref<EvalState> state)
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: state(state)
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, debugTraceIndex(0)
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, staticEnv(new StaticEnv(false, state->staticBaseEnv.get()))
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, historyFile(getDataDir() + "/nix/repl-history")
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{
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curDir = absPath(".");
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@ -198,15 +203,42 @@ namespace {
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}
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}
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static std::ostream & showDebugTrace(std::ostream & out, const PosTable & positions, const DebugTrace & dt)
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{
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if (dt.isError)
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out << ANSI_RED "error: " << ANSI_NORMAL;
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out << dt.hint.str() << "\n";
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// prefer direct pos, but if noPos then try the expr.
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auto pos = *dt.pos
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? *dt.pos
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: positions[dt.expr.getPos() ? dt.expr.getPos() : noPos];
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if (pos) {
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printAtPos(pos, out);
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auto loc = getCodeLines(pos);
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if (loc.has_value()) {
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out << "\n";
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printCodeLines(out, "", pos, *loc);
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out << "\n";
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}
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}
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return out;
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}
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void NixRepl::mainLoop(const std::vector<std::string> & files)
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{
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std::string error = ANSI_RED "error:" ANSI_NORMAL " ";
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notice("Welcome to Nix " + nixVersion + ". Type :? for help.\n");
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for (auto & i : files)
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loadedFiles.push_back(i);
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if (!files.empty()) {
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for (auto & i : files)
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loadedFiles.push_back(i);
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}
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reloadFiles();
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loadFiles();
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if (!loadedFiles.empty()) notice("");
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// Allow nix-repl specific settings in .inputrc
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@ -227,9 +259,12 @@ void NixRepl::mainLoop(const std::vector<std::string> & files)
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while (true) {
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// When continuing input from previous lines, don't print a prompt, just align to the same
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// number of chars as the prompt.
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if (!getLine(input, input.empty() ? "nix-repl> " : " "))
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if (!getLine(input, input.empty() ? "nix-repl> " : " ")) {
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// ctrl-D should exit the debugger.
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state->debugStop = false;
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state->debugQuit = true;
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break;
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}
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try {
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if (!removeWhitespace(input).empty() && !processLine(input)) return;
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} catch (ParseError & e) {
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@ -240,6 +275,14 @@ void NixRepl::mainLoop(const std::vector<std::string> & files)
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} else {
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printMsg(lvlError, e.msg());
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}
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} catch (EvalError & e) {
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// in debugger mode, an EvalError should trigger another repl session.
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// when that session returns the exception will land here. No need to show it again;
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// show the error for this repl session instead.
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if (state->debugRepl && !state->debugTraces.empty())
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showDebugTrace(std::cout, state->positions, state->debugTraces.front());
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else
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printMsg(lvlError, e.msg());
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} catch (Error & e) {
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printMsg(lvlError, e.msg());
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} catch (Interrupted & e) {
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@ -394,6 +437,19 @@ StorePath NixRepl::getDerivationPath(Value & v) {
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return *drvPath;
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}
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void NixRepl::loadDebugTraceEnv(DebugTrace & dt)
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{
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initEnv();
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auto se = state->getStaticEnv(dt.expr);
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if (se) {
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auto vm = mapStaticEnvBindings(state->symbols, *se.get(), dt.env);
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// add staticenv vars.
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for (auto & [name, value] : *(vm.get()))
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addVarToScope(state->symbols.create(name), *value);
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}
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}
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bool NixRepl::processLine(std::string line)
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{
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@ -429,12 +485,72 @@ bool NixRepl::processLine(std::string line)
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<< " :p <expr> Evaluate and print expression recursively\n"
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<< " :q Exit nix-repl\n"
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<< " :r Reload all files\n"
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<< " :s <expr> Build dependencies of derivation, then start nix-shell\n"
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<< " :sh <expr> Build dependencies of derivation, then start nix-shell\n"
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<< " :t <expr> Describe result of evaluation\n"
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<< " :u <expr> Build derivation, then start nix-shell\n"
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<< " :doc <expr> Show documentation of a builtin function\n"
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<< " :log <expr> Show logs for a derivation\n"
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<< " :st [bool] Enable, disable or toggle showing traces for errors\n";
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<< " :te [bool] Enable, disable or toggle showing traces for errors\n"
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;
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if (state->debugRepl) {
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std::cout
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<< "\n"
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<< " Debug mode commands\n"
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<< " :env Show env stack\n"
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<< " :bt Show trace stack\n"
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<< " :st Show current trace\n"
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<< " :st <idx> Change to another trace in the stack\n"
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<< " :c Go until end of program, exception, or builtins.break\n"
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<< " :s Go one step\n"
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;
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}
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}
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else if (state->debugRepl && (command == ":bt" || command == ":backtrace")) {
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for (const auto & [idx, i] : enumerate(state->debugTraces)) {
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std::cout << "\n" << ANSI_BLUE << idx << ANSI_NORMAL << ": ";
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showDebugTrace(std::cout, state->positions, i);
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}
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}
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else if (state->debugRepl && (command == ":env")) {
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for (const auto & [idx, i] : enumerate(state->debugTraces)) {
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if (idx == debugTraceIndex) {
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printEnvBindings(*state, i.expr, i.env);
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break;
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}
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}
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}
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else if (state->debugRepl && (command == ":st")) {
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try {
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// change the DebugTrace index.
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debugTraceIndex = stoi(arg);
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} catch (...) { }
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for (const auto & [idx, i] : enumerate(state->debugTraces)) {
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if (idx == debugTraceIndex) {
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std::cout << "\n" << ANSI_BLUE << idx << ANSI_NORMAL << ": ";
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showDebugTrace(std::cout, state->positions, i);
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std::cout << std::endl;
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printEnvBindings(*state, i.expr, i.env);
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loadDebugTraceEnv(i);
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break;
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}
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}
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}
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else if (state->debugRepl && (command == ":s" || command == ":step")) {
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// set flag to stop at next DebugTrace; exit repl.
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state->debugStop = true;
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return false;
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}
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else if (state->debugRepl && (command == ":c" || command == ":continue")) {
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// set flag to run to next breakpoint or end of program; exit repl.
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state->debugStop = false;
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return false;
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}
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else if (command == ":a" || command == ":add") {
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@ -506,7 +622,7 @@ bool NixRepl::processLine(std::string line)
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runNix("nix-shell", {state->store->printStorePath(drvPath)});
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}
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else if (command == ":b" || command == ":bl" || command == ":i" || command == ":s" || command == ":log") {
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else if (command == ":b" || command == ":bl" || command == ":i" || command == ":sh" || command == ":log") {
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Value v;
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evalString(arg, v);
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StorePath drvPath = getDerivationPath(v);
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@ -567,8 +683,11 @@ bool NixRepl::processLine(std::string line)
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printValue(std::cout, v, 1000000000) << std::endl;
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}
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else if (command == ":q" || command == ":quit")
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else if (command == ":q" || command == ":quit") {
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state->debugStop = false;
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state->debugQuit = true;
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return false;
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}
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else if (command == ":doc") {
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Value v;
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@ -593,7 +712,7 @@ bool NixRepl::processLine(std::string line)
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throw Error("value does not have documentation");
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}
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else if (command == ":st" || command == ":show-trace") {
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else if (command == ":te" || command == ":trace-enable") {
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if (arg == "false" || (arg == "" && loggerSettings.showTrace)) {
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std::cout << "not showing error traces\n";
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loggerSettings.showTrace = false;
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@ -669,10 +788,10 @@ void NixRepl::initEnv()
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env = &state->allocEnv(envSize);
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env->up = &state->baseEnv;
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displ = 0;
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staticEnv.vars.clear();
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staticEnv->vars.clear();
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varNames.clear();
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for (auto & i : state->staticBaseEnv.vars)
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for (auto & i : state->staticBaseEnv->vars)
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varNames.emplace(state->symbols[i.first]);
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}
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@ -681,6 +800,12 @@ void NixRepl::reloadFiles()
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{
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initEnv();
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loadFiles();
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}
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void NixRepl::loadFiles()
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{
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Strings old = loadedFiles;
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loadedFiles.clear();
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@ -701,12 +826,12 @@ void NixRepl::addAttrsToScope(Value & attrs)
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throw Error("environment full; cannot add more variables");
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for (auto & i : *attrs.attrs) {
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staticEnv.vars.emplace_back(i.name, displ);
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staticEnv->vars.emplace_back(i.name, displ);
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env->values[displ++] = i.value;
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varNames.emplace(state->symbols[i.name]);
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}
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staticEnv.sort();
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staticEnv.deduplicate();
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staticEnv->sort();
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staticEnv->deduplicate();
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notice("Added %1% variables.", attrs.attrs->size());
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}
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@ -715,10 +840,10 @@ void NixRepl::addVarToScope(const Symbol name, Value & v)
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{
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if (displ >= envSize)
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throw Error("environment full; cannot add more variables");
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if (auto oldVar = staticEnv.find(name); oldVar != staticEnv.vars.end())
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staticEnv.vars.erase(oldVar);
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staticEnv.vars.emplace_back(name, displ);
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staticEnv.sort();
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if (auto oldVar = staticEnv->find(name); oldVar != staticEnv->vars.end())
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staticEnv->vars.erase(oldVar);
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staticEnv->vars.emplace_back(name, displ);
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staticEnv->sort();
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env->values[displ++] = &v;
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varNames.emplace(state->symbols[name]);
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}
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@ -886,6 +1011,21 @@ std::ostream & NixRepl::printValue(std::ostream & str, Value & v, unsigned int m
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return str;
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}
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void runRepl(
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ref<EvalState>evalState,
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const ValMap & extraEnv)
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{
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auto repl = std::make_unique<NixRepl>(evalState);
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repl->initEnv();
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// add 'extra' vars.
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for (auto & [name, value] : extraEnv)
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repl->addVarToScope(repl->state->symbols.create(name), *value);
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repl->mainLoop({});
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}
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struct CmdRepl : StoreCommand, MixEvalArgs
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{
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std::vector<std::string> files;
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|
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@ -914,8 +1054,12 @@ struct CmdRepl : StoreCommand, MixEvalArgs
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void run(ref<Store> store) override
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{
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evalSettings.pureEval = false;
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auto repl = std::make_unique<NixRepl>(searchPath, openStore());
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auto evalState = make_ref<EvalState>(searchPath, store);
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auto repl = std::make_unique<NixRepl>(evalState);
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repl->autoArgs = getAutoArgs(*repl->state);
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repl->initEnv();
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repl->mainLoop(files);
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}
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};
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|
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@ -576,14 +576,14 @@ std::string AttrCursor::getString()
|
|||
debug("using cached string attribute '%s'", getAttrPathStr());
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return s->first;
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} else
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throw TypeError("'%s' is not a string", getAttrPathStr());
|
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root->state.debugThrowLastTrace(TypeError("'%s' is not a string", getAttrPathStr()));
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}
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}
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auto & v = forceValue();
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|
||||
if (v.type() != nString && v.type() != nPath)
|
||||
throw TypeError("'%s' is not a string but %s", getAttrPathStr(), showType(v.type()));
|
||||
root->state.debugThrowLastTrace(TypeError("'%s' is not a string but %s", getAttrPathStr(), showType(v.type())));
|
||||
|
||||
return v.type() == nString ? v.string.s : v.path;
|
||||
}
|
||||
|
|
@ -607,7 +607,7 @@ string_t AttrCursor::getStringWithContext()
|
|||
return *s;
|
||||
}
|
||||
} else
|
||||
throw TypeError("'%s' is not a string", getAttrPathStr());
|
||||
root->state.debugThrowLastTrace(TypeError("'%s' is not a string", getAttrPathStr()));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -618,7 +618,7 @@ string_t AttrCursor::getStringWithContext()
|
|||
else if (v.type() == nPath)
|
||||
return {v.path, {}};
|
||||
else
|
||||
throw TypeError("'%s' is not a string but %s", getAttrPathStr(), showType(v.type()));
|
||||
root->state.debugThrowLastTrace(TypeError("'%s' is not a string but %s", getAttrPathStr(), showType(v.type())));
|
||||
}
|
||||
|
||||
bool AttrCursor::getBool()
|
||||
|
|
@ -631,14 +631,14 @@ bool AttrCursor::getBool()
|
|||
debug("using cached Boolean attribute '%s'", getAttrPathStr());
|
||||
return *b;
|
||||
} else
|
||||
throw TypeError("'%s' is not a Boolean", getAttrPathStr());
|
||||
root->state.debugThrowLastTrace(TypeError("'%s' is not a Boolean", getAttrPathStr()));
|
||||
}
|
||||
}
|
||||
|
||||
auto & v = forceValue();
|
||||
|
||||
if (v.type() != nBool)
|
||||
throw TypeError("'%s' is not a Boolean", getAttrPathStr());
|
||||
root->state.debugThrowLastTrace(TypeError("'%s' is not a Boolean", getAttrPathStr()));
|
||||
|
||||
return v.boolean;
|
||||
}
|
||||
|
|
@ -708,14 +708,14 @@ std::vector<Symbol> AttrCursor::getAttrs()
|
|||
debug("using cached attrset attribute '%s'", getAttrPathStr());
|
||||
return *attrs;
|
||||
} else
|
||||
throw TypeError("'%s' is not an attribute set", getAttrPathStr());
|
||||
root->state.debugThrowLastTrace(TypeError("'%s' is not an attribute set", getAttrPathStr()));
|
||||
}
|
||||
}
|
||||
|
||||
auto & v = forceValue();
|
||||
|
||||
if (v.type() != nAttrs)
|
||||
throw TypeError("'%s' is not an attribute set", getAttrPathStr());
|
||||
root->state.debugThrowLastTrace(TypeError("'%s' is not an attribute set", getAttrPathStr()));
|
||||
|
||||
std::vector<Symbol> attrs;
|
||||
for (auto & attr : *getValue().attrs)
|
||||
|
|
|
|||
|
|
@ -4,7 +4,6 @@
|
|||
|
||||
namespace nix {
|
||||
|
||||
|
||||
/* Note: Various places expect the allocated memory to be zeroed. */
|
||||
[[gnu::always_inline]]
|
||||
inline void * allocBytes(size_t n)
|
||||
|
|
|
|||
|
|
@ -18,6 +18,7 @@
|
|||
#include <sys/resource.h>
|
||||
#include <iostream>
|
||||
#include <fstream>
|
||||
#include <functional>
|
||||
|
||||
#include <sys/resource.h>
|
||||
|
||||
|
|
@ -36,7 +37,6 @@
|
|||
|
||||
namespace nix {
|
||||
|
||||
|
||||
static char * allocString(size_t size)
|
||||
{
|
||||
char * t;
|
||||
|
|
@ -463,6 +463,9 @@ EvalState::EvalState(
|
|||
, emptyBindings(0)
|
||||
, store(store)
|
||||
, buildStore(buildStore ? buildStore : store)
|
||||
, debugRepl(0)
|
||||
, debugStop(false)
|
||||
, debugQuit(false)
|
||||
, regexCache(makeRegexCache())
|
||||
#if HAVE_BOEHMGC
|
||||
, valueAllocCache(std::allocate_shared<void *>(traceable_allocator<void *>(), nullptr))
|
||||
|
|
@ -472,7 +475,7 @@ EvalState::EvalState(
|
|||
, env1AllocCache(std::make_shared<void *>(nullptr))
|
||||
#endif
|
||||
, baseEnv(allocEnv(128))
|
||||
, staticBaseEnv(false, 0)
|
||||
, staticBaseEnv{std::make_shared<StaticEnv>(false, nullptr)}
|
||||
{
|
||||
countCalls = getEnv("NIX_COUNT_CALLS").value_or("0") != "0";
|
||||
|
||||
|
|
@ -530,7 +533,7 @@ void EvalState::allowPath(const StorePath & storePath)
|
|||
allowedPaths->insert(store->toRealPath(storePath));
|
||||
}
|
||||
|
||||
void EvalState::allowAndSetStorePathString(const StorePath &storePath, Value & v)
|
||||
void EvalState::allowAndSetStorePathString(const StorePath & storePath, Value & v)
|
||||
{
|
||||
allowPath(storePath);
|
||||
|
||||
|
|
@ -638,7 +641,7 @@ Value * EvalState::addConstant(const std::string & name, Value & v)
|
|||
|
||||
void EvalState::addConstant(const std::string & name, Value * v)
|
||||
{
|
||||
staticBaseEnv.vars.emplace_back(symbols.create(name), baseEnvDispl);
|
||||
staticBaseEnv->vars.emplace_back(symbols.create(name), baseEnvDispl);
|
||||
baseEnv.values[baseEnvDispl++] = v;
|
||||
auto name2 = name.substr(0, 2) == "__" ? name.substr(2) : name;
|
||||
baseEnv.values[0]->attrs->push_back(Attr(symbols.create(name2), v));
|
||||
|
|
@ -663,7 +666,7 @@ Value * EvalState::addPrimOp(const std::string & name,
|
|||
|
||||
Value * v = allocValue();
|
||||
v->mkPrimOp(new PrimOp { .fun = primOp, .arity = arity, .name = name2 });
|
||||
staticBaseEnv.vars.emplace_back(symbols.create(name), baseEnvDispl);
|
||||
staticBaseEnv->vars.emplace_back(symbols.create(name), baseEnvDispl);
|
||||
baseEnv.values[baseEnvDispl++] = v;
|
||||
baseEnv.values[0]->attrs->push_back(Attr(sym, v));
|
||||
return v;
|
||||
|
|
@ -689,7 +692,7 @@ Value * EvalState::addPrimOp(PrimOp && primOp)
|
|||
|
||||
Value * v = allocValue();
|
||||
v->mkPrimOp(new PrimOp(primOp));
|
||||
staticBaseEnv.vars.emplace_back(envName, baseEnvDispl);
|
||||
staticBaseEnv->vars.emplace_back(envName, baseEnvDispl);
|
||||
baseEnv.values[baseEnvDispl++] = v;
|
||||
baseEnv.values[0]->attrs->push_back(Attr(symbols.create(primOp.name), v));
|
||||
return v;
|
||||
|
|
@ -719,128 +722,284 @@ std::optional<EvalState::Doc> EvalState::getDoc(Value & v)
|
|||
}
|
||||
|
||||
|
||||
// just for the current level of StaticEnv, not the whole chain.
|
||||
void printStaticEnvBindings(const SymbolTable & st, const StaticEnv & se)
|
||||
{
|
||||
std::cout << ANSI_MAGENTA;
|
||||
for (auto & i : se.vars)
|
||||
std::cout << st[i.first] << " ";
|
||||
std::cout << ANSI_NORMAL;
|
||||
std::cout << std::endl;
|
||||
}
|
||||
|
||||
// just for the current level of Env, not the whole chain.
|
||||
void printWithBindings(const SymbolTable & st, const Env & env)
|
||||
{
|
||||
if (env.type == Env::HasWithAttrs) {
|
||||
std::cout << "with: ";
|
||||
std::cout << ANSI_MAGENTA;
|
||||
Bindings::iterator j = env.values[0]->attrs->begin();
|
||||
while (j != env.values[0]->attrs->end()) {
|
||||
std::cout << st[j->name] << " ";
|
||||
++j;
|
||||
}
|
||||
std::cout << ANSI_NORMAL;
|
||||
std::cout << std::endl;
|
||||
}
|
||||
}
|
||||
|
||||
void printEnvBindings(const SymbolTable & st, const StaticEnv & se, const Env & env, int lvl)
|
||||
{
|
||||
std::cout << "Env level " << lvl << std::endl;
|
||||
|
||||
if (se.up && env.up) {
|
||||
std::cout << "static: ";
|
||||
printStaticEnvBindings(st, se);
|
||||
printWithBindings(st, env);
|
||||
std::cout << std::endl;
|
||||
printEnvBindings(st, *se.up, *env.up, ++lvl);
|
||||
} else {
|
||||
std::cout << ANSI_MAGENTA;
|
||||
// for the top level, don't print the double underscore ones;
|
||||
// they are in builtins.
|
||||
for (auto & i : se.vars)
|
||||
if (!hasPrefix(st[i.first], "__"))
|
||||
std::cout << st[i.first] << " ";
|
||||
std::cout << ANSI_NORMAL;
|
||||
std::cout << std::endl;
|
||||
printWithBindings(st, env); // probably nothing there for the top level.
|
||||
std::cout << std::endl;
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
void printEnvBindings(const EvalState &es, const Expr & expr, const Env & env)
|
||||
{
|
||||
// just print the names for now
|
||||
auto se = es.getStaticEnv(expr);
|
||||
if (se)
|
||||
printEnvBindings(es.symbols, *se, env, 0);
|
||||
}
|
||||
|
||||
void mapStaticEnvBindings(const SymbolTable & st, const StaticEnv & se, const Env & env, ValMap & vm)
|
||||
{
|
||||
// add bindings for the next level up first, so that the bindings for this level
|
||||
// override the higher levels.
|
||||
// The top level bindings (builtins) are skipped since they are added for us by initEnv()
|
||||
if (env.up && se.up) {
|
||||
mapStaticEnvBindings(st, *se.up, *env.up, vm);
|
||||
|
||||
if (env.type == Env::HasWithAttrs) {
|
||||
// add 'with' bindings.
|
||||
Bindings::iterator j = env.values[0]->attrs->begin();
|
||||
while (j != env.values[0]->attrs->end()) {
|
||||
vm[st[j->name]] = j->value;
|
||||
++j;
|
||||
}
|
||||
} else {
|
||||
// iterate through staticenv bindings and add them.
|
||||
for (auto & i : se.vars)
|
||||
vm[st[i.first]] = env.values[i.second];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
std::unique_ptr<ValMap> mapStaticEnvBindings(const SymbolTable & st, const StaticEnv & se, const Env & env)
|
||||
{
|
||||
auto vm = std::make_unique<ValMap>();
|
||||
mapStaticEnvBindings(st, se, env, *vm);
|
||||
return vm;
|
||||
}
|
||||
|
||||
void EvalState::runDebugRepl(const Error * error, const Env & env, const Expr & expr)
|
||||
{
|
||||
// double check we've got the debugRepl function pointer.
|
||||
if (!debugRepl)
|
||||
return;
|
||||
|
||||
auto dts =
|
||||
error && expr.getPos()
|
||||
? std::make_unique<DebugTraceStacker>(
|
||||
*this,
|
||||
DebugTrace {
|
||||
.pos = error->info().errPos ? *error->info().errPos : positions[expr.getPos()],
|
||||
.expr = expr,
|
||||
.env = env,
|
||||
.hint = error->info().msg,
|
||||
.isError = true
|
||||
})
|
||||
: nullptr;
|
||||
|
||||
if (error)
|
||||
printError("%s\n\n" ANSI_BOLD "Starting REPL to allow you to inspect the current state of the evaluator.\n" ANSI_NORMAL, error->what());
|
||||
|
||||
auto se = getStaticEnv(expr);
|
||||
if (se) {
|
||||
auto vm = mapStaticEnvBindings(symbols, *se.get(), env);
|
||||
(debugRepl)(ref<EvalState>(shared_from_this()), *vm);
|
||||
}
|
||||
}
|
||||
|
||||
/* Every "format" object (even temporary) takes up a few hundred bytes
|
||||
of stack space, which is a real killer in the recursive
|
||||
evaluator. So here are some helper functions for throwing
|
||||
exceptions. */
|
||||
|
||||
void EvalState::throwEvalError(const PosIdx pos, const char * s) const
|
||||
void EvalState::throwEvalError(const PosIdx pos, const char * s, Env & env, Expr & expr)
|
||||
{
|
||||
throw EvalError({
|
||||
debugThrow(EvalError({
|
||||
.msg = hintfmt(s),
|
||||
.errPos = positions[pos]
|
||||
});
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
void EvalState::throwTypeError(const PosIdx pos, const char * s, const Value & v) const
|
||||
void EvalState::throwEvalError(const PosIdx pos, const char * s)
|
||||
{
|
||||
throw TypeError({
|
||||
.msg = hintfmt(s, showType(v)),
|
||||
debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt(s),
|
||||
.errPos = positions[pos]
|
||||
});
|
||||
}));
|
||||
}
|
||||
|
||||
void EvalState::throwEvalError(const char * s, const std::string & s2) const
|
||||
void EvalState::throwEvalError(const char * s, const std::string & s2)
|
||||
{
|
||||
throw EvalError(s, s2);
|
||||
debugThrowLastTrace(EvalError(s, s2));
|
||||
}
|
||||
|
||||
void EvalState::throwEvalError(const PosIdx pos, const Suggestions & suggestions, const char * s,
|
||||
const std::string & s2) const
|
||||
const std::string & s2, Env & env, Expr & expr)
|
||||
{
|
||||
throw EvalError(ErrorInfo {
|
||||
debugThrow(EvalError(ErrorInfo{
|
||||
.msg = hintfmt(s, s2),
|
||||
.errPos = positions[pos],
|
||||
.suggestions = suggestions,
|
||||
});
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
void EvalState::throwEvalError(const PosIdx pos, const char * s, const std::string & s2) const
|
||||
void EvalState::throwEvalError(const PosIdx pos, const char * s, const std::string & s2)
|
||||
{
|
||||
throw EvalError(ErrorInfo {
|
||||
debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt(s, s2),
|
||||
.errPos = positions[pos]
|
||||
});
|
||||
}));
|
||||
}
|
||||
|
||||
void EvalState::throwEvalError(const char * s, const std::string & s2, const std::string & s3) const
|
||||
void EvalState::throwEvalError(const PosIdx pos, const char * s, const std::string & s2, Env & env, Expr & expr)
|
||||
{
|
||||
throw EvalError(s, s2, s3);
|
||||
debugThrow(EvalError({
|
||||
.msg = hintfmt(s, s2),
|
||||
.errPos = positions[pos]
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
void EvalState::throwEvalError(const char * s, const std::string & s2,
|
||||
const std::string & s3)
|
||||
{
|
||||
debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt(s, s2),
|
||||
.errPos = positions[noPos]
|
||||
}));
|
||||
}
|
||||
|
||||
void EvalState::throwEvalError(const PosIdx pos, const char * s, const std::string & s2,
|
||||
const std::string & s3) const
|
||||
const std::string & s3)
|
||||
{
|
||||
throw EvalError({
|
||||
.msg = hintfmt(s, s2, s3),
|
||||
debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt(s, s2),
|
||||
.errPos = positions[pos]
|
||||
});
|
||||
}));
|
||||
}
|
||||
|
||||
void EvalState::throwEvalError(const PosIdx p1, const char * s, const Symbol sym, const PosIdx p2) const
|
||||
void EvalState::throwEvalError(const PosIdx pos, const char * s, const std::string & s2,
|
||||
const std::string & s3, Env & env, Expr & expr)
|
||||
{
|
||||
debugThrow(EvalError({
|
||||
.msg = hintfmt(s, s2),
|
||||
.errPos = positions[pos]
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
void EvalState::throwEvalError(const PosIdx p1, const char * s, const Symbol sym, const PosIdx p2, Env & env, Expr & expr)
|
||||
{
|
||||
// p1 is where the error occurred; p2 is a position mentioned in the message.
|
||||
throw EvalError({
|
||||
debugThrow(EvalError({
|
||||
.msg = hintfmt(s, symbols[sym], positions[p2]),
|
||||
.errPos = positions[p1]
|
||||
});
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
void EvalState::throwTypeError(const PosIdx pos, const char * s) const
|
||||
void EvalState::throwTypeError(const PosIdx pos, const char * s, const Value & v)
|
||||
{
|
||||
throw TypeError({
|
||||
debugThrowLastTrace(TypeError({
|
||||
.msg = hintfmt(s, showType(v)),
|
||||
.errPos = positions[pos]
|
||||
}));
|
||||
}
|
||||
|
||||
void EvalState::throwTypeError(const PosIdx pos, const char * s, const Value & v, Env & env, Expr & expr)
|
||||
{
|
||||
debugThrow(TypeError({
|
||||
.msg = hintfmt(s, showType(v)),
|
||||
.errPos = positions[pos]
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
void EvalState::throwTypeError(const PosIdx pos, const char * s)
|
||||
{
|
||||
debugThrowLastTrace(TypeError({
|
||||
.msg = hintfmt(s),
|
||||
.errPos = positions[pos]
|
||||
});
|
||||
}));
|
||||
}
|
||||
|
||||
void EvalState::throwTypeError(const PosIdx pos, const char * s, const ExprLambda & fun,
|
||||
const Symbol s2) const
|
||||
const Symbol s2, Env & env, Expr &expr)
|
||||
{
|
||||
throw TypeError({
|
||||
debugThrow(TypeError({
|
||||
.msg = hintfmt(s, fun.showNamePos(*this), symbols[s2]),
|
||||
.errPos = positions[pos]
|
||||
});
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
void EvalState::throwTypeError(const PosIdx pos, const Suggestions & suggestions, const char * s,
|
||||
const ExprLambda & fun, const Symbol s2) const
|
||||
const ExprLambda & fun, const Symbol s2, Env & env, Expr &expr)
|
||||
{
|
||||
throw TypeError(ErrorInfo {
|
||||
debugThrow(TypeError(ErrorInfo {
|
||||
.msg = hintfmt(s, fun.showNamePos(*this), symbols[s2]),
|
||||
.errPos = positions[pos],
|
||||
.suggestions = suggestions,
|
||||
});
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
|
||||
void EvalState::throwTypeError(const char * s, const Value & v) const
|
||||
void EvalState::throwTypeError(const char * s, const Value & v, Env & env, Expr &expr)
|
||||
{
|
||||
throw TypeError(s, showType(v));
|
||||
debugThrow(TypeError({
|
||||
.msg = hintfmt(s, showType(v)),
|
||||
.errPos = positions[expr.getPos()],
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
void EvalState::throwAssertionError(const PosIdx pos, const char * s, const std::string & s1) const
|
||||
void EvalState::throwAssertionError(const PosIdx pos, const char * s, const std::string & s1, Env & env, Expr &expr)
|
||||
{
|
||||
throw AssertionError({
|
||||
debugThrow(AssertionError({
|
||||
.msg = hintfmt(s, s1),
|
||||
.errPos = positions[pos]
|
||||
});
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
void EvalState::throwUndefinedVarError(const PosIdx pos, const char * s, const std::string & s1) const
|
||||
void EvalState::throwUndefinedVarError(const PosIdx pos, const char * s, const std::string & s1, Env & env, Expr &expr)
|
||||
{
|
||||
throw UndefinedVarError({
|
||||
debugThrow(UndefinedVarError({
|
||||
.msg = hintfmt(s, s1),
|
||||
.errPos = positions[pos]
|
||||
});
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
void EvalState::throwMissingArgumentError(const PosIdx pos, const char * s, const std::string & s1) const
|
||||
void EvalState::throwMissingArgumentError(const PosIdx pos, const char * s, const std::string & s1, Env & env, Expr &expr)
|
||||
{
|
||||
throw MissingArgumentError({
|
||||
debugThrow(MissingArgumentError({
|
||||
.msg = hintfmt(s, s1),
|
||||
.errPos = positions[pos]
|
||||
});
|
||||
}), env, expr);
|
||||
}
|
||||
|
||||
void EvalState::addErrorTrace(Error & e, const char * s, const std::string & s2) const
|
||||
|
|
@ -853,6 +1012,32 @@ void EvalState::addErrorTrace(Error & e, const PosIdx pos, const char * s, const
|
|||
e.addTrace(positions[pos], s, s2);
|
||||
}
|
||||
|
||||
static std::unique_ptr<DebugTraceStacker> makeDebugTraceStacker(
|
||||
EvalState & state,
|
||||
Expr & expr,
|
||||
Env & env,
|
||||
std::optional<ErrPos> pos,
|
||||
const char * s,
|
||||
const std::string & s2)
|
||||
{
|
||||
return std::make_unique<DebugTraceStacker>(state,
|
||||
DebugTrace {
|
||||
.pos = pos,
|
||||
.expr = expr,
|
||||
.env = env,
|
||||
.hint = hintfmt(s, s2),
|
||||
.isError = false
|
||||
});
|
||||
}
|
||||
|
||||
DebugTraceStacker::DebugTraceStacker(EvalState & evalState, DebugTrace t)
|
||||
: evalState(evalState)
|
||||
, trace(std::move(t))
|
||||
{
|
||||
evalState.debugTraces.push_front(trace);
|
||||
if (evalState.debugStop && evalState.debugRepl)
|
||||
evalState.runDebugRepl(nullptr, trace.env, trace.expr);
|
||||
}
|
||||
|
||||
void Value::mkString(std::string_view s)
|
||||
{
|
||||
|
|
@ -911,12 +1096,11 @@ inline Value * EvalState::lookupVar(Env * env, const ExprVar & var, bool noEval)
|
|||
return j->value;
|
||||
}
|
||||
if (!env->prevWith)
|
||||
throwUndefinedVarError(var.pos, "undefined variable '%1%'", symbols[var.name]);
|
||||
throwUndefinedVarError(var.pos, "undefined variable '%1%'", symbols[var.name], *env, const_cast<ExprVar&>(var));
|
||||
for (size_t l = env->prevWith; l; --l, env = env->up) ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void EvalState::mkList(Value & v, size_t size)
|
||||
{
|
||||
v.mkList(size);
|
||||
|
|
@ -1049,6 +1233,15 @@ void EvalState::cacheFile(
|
|||
fileParseCache[resolvedPath] = e;
|
||||
|
||||
try {
|
||||
auto dts = debugRepl
|
||||
? makeDebugTraceStacker(
|
||||
*this,
|
||||
*e,
|
||||
this->baseEnv,
|
||||
e->getPos() ? std::optional(ErrPos(positions[e->getPos()])) : std::nullopt,
|
||||
"while evaluating the file '%1%':", resolvedPath)
|
||||
: nullptr;
|
||||
|
||||
// Enforce that 'flake.nix' is a direct attrset, not a
|
||||
// computation.
|
||||
if (mustBeTrivial &&
|
||||
|
|
@ -1076,7 +1269,7 @@ inline bool EvalState::evalBool(Env & env, Expr * e)
|
|||
Value v;
|
||||
e->eval(*this, env, v);
|
||||
if (v.type() != nBool)
|
||||
throwTypeError("value is %1% while a Boolean was expected", v);
|
||||
throwTypeError(noPos, "value is %1% while a Boolean was expected", v, env, *e);
|
||||
return v.boolean;
|
||||
}
|
||||
|
||||
|
|
@ -1086,7 +1279,7 @@ inline bool EvalState::evalBool(Env & env, Expr * e, const PosIdx pos)
|
|||
Value v;
|
||||
e->eval(*this, env, v);
|
||||
if (v.type() != nBool)
|
||||
throwTypeError(pos, "value is %1% while a Boolean was expected", v);
|
||||
throwTypeError(pos, "value is %1% while a Boolean was expected", v, env, *e);
|
||||
return v.boolean;
|
||||
}
|
||||
|
||||
|
|
@ -1095,7 +1288,7 @@ inline void EvalState::evalAttrs(Env & env, Expr * e, Value & v)
|
|||
{
|
||||
e->eval(*this, env, v);
|
||||
if (v.type() != nAttrs)
|
||||
throwTypeError("value is %1% while a set was expected", v);
|
||||
throwTypeError(noPos, "value is %1% while a set was expected", v, env, *e);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -1200,7 +1393,7 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
|
|||
auto nameSym = state.symbols.create(nameVal.string.s);
|
||||
Bindings::iterator j = v.attrs->find(nameSym);
|
||||
if (j != v.attrs->end())
|
||||
state.throwEvalError(i.pos, "dynamic attribute '%1%' already defined at %2%", nameSym, j->pos);
|
||||
state.throwEvalError(i.pos, "dynamic attribute '%1%' already defined at %2%", nameSym, j->pos, env, *this);
|
||||
|
||||
i.valueExpr->setName(nameSym);
|
||||
/* Keep sorted order so find can catch duplicates */
|
||||
|
|
@ -1274,6 +1467,15 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v)
|
|||
e->eval(state, env, vTmp);
|
||||
|
||||
try {
|
||||
auto dts = state.debugRepl
|
||||
? makeDebugTraceStacker(
|
||||
state,
|
||||
*this,
|
||||
env,
|
||||
state.positions[pos2],
|
||||
"while evaluating the attribute '%1%'",
|
||||
showAttrPath(state, env, attrPath))
|
||||
: nullptr;
|
||||
|
||||
for (auto & i : attrPath) {
|
||||
state.nrLookups++;
|
||||
|
|
@ -1296,7 +1498,7 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v)
|
|||
state.throwEvalError(
|
||||
pos,
|
||||
Suggestions::bestMatches(allAttrNames, state.symbols[name]),
|
||||
"attribute '%1%' missing", state.symbols[name]);
|
||||
"attribute '%1%' missing", state.symbols[name], env, *this);
|
||||
}
|
||||
}
|
||||
vAttrs = j->value;
|
||||
|
|
@ -1387,7 +1589,6 @@ void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value &
|
|||
|
||||
if (!lambda.hasFormals())
|
||||
env2.values[displ++] = args[0];
|
||||
|
||||
else {
|
||||
forceAttrs(*args[0], pos);
|
||||
|
||||
|
|
@ -1402,7 +1603,7 @@ void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value &
|
|||
auto j = args[0]->attrs->get(i.name);
|
||||
if (!j) {
|
||||
if (!i.def) throwTypeError(pos, "%1% called without required argument '%2%'",
|
||||
lambda, i.name);
|
||||
lambda, i.name, *fun.lambda.env, lambda);
|
||||
env2.values[displ++] = i.def->maybeThunk(*this, env2);
|
||||
} else {
|
||||
attrsUsed++;
|
||||
|
|
@ -1424,8 +1625,7 @@ void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value &
|
|||
pos,
|
||||
Suggestions::bestMatches(formalNames, symbols[i.name]),
|
||||
"%1% called with unexpected argument '%2%'",
|
||||
lambda,
|
||||
i.name);
|
||||
lambda, i.name, *fun.lambda.env, lambda);
|
||||
}
|
||||
abort(); // can't happen
|
||||
}
|
||||
|
|
@ -1436,6 +1636,15 @@ void EvalState::callFunction(Value & fun, size_t nrArgs, Value * * args, Value &
|
|||
|
||||
/* Evaluate the body. */
|
||||
try {
|
||||
auto dts = debugRepl
|
||||
? makeDebugTraceStacker(
|
||||
*this, *lambda.body, env2, positions[lambda.pos],
|
||||
"while evaluating %s",
|
||||
lambda.name
|
||||
? concatStrings("'", symbols[lambda.name], "'")
|
||||
: "anonymous lambda")
|
||||
: nullptr;
|
||||
|
||||
lambda.body->eval(*this, env2, vCur);
|
||||
} catch (Error & e) {
|
||||
if (loggerSettings.showTrace.get()) {
|
||||
|
|
@ -1590,8 +1799,8 @@ void EvalState::autoCallFunction(Bindings & args, Value & fun, Value & res)
|
|||
Nix attempted to evaluate a function as a top level expression; in
|
||||
this case it must have its arguments supplied either by default
|
||||
values, or passed explicitly with '--arg' or '--argstr'. See
|
||||
https://nixos.org/manual/nix/stable/expressions/language-constructs.html#functions.)", symbols[i.name]);
|
||||
|
||||
https://nixos.org/manual/nix/stable/expressions/language-constructs.html#functions.)", symbols[i.name],
|
||||
*fun.lambda.env, *fun.lambda.fun);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1623,7 +1832,7 @@ void ExprAssert::eval(EvalState & state, Env & env, Value & v)
|
|||
if (!state.evalBool(env, cond, pos)) {
|
||||
std::ostringstream out;
|
||||
cond->show(state.symbols, out);
|
||||
state.throwAssertionError(pos, "assertion '%1%' failed", out.str());
|
||||
state.throwAssertionError(pos, "assertion '%1%' failed", out.str(), env, *this);
|
||||
}
|
||||
body->eval(state, env, v);
|
||||
}
|
||||
|
|
@ -1800,14 +2009,14 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
|
|||
nf = n;
|
||||
nf += vTmp.fpoint;
|
||||
} else
|
||||
state.throwEvalError(i_pos, "cannot add %1% to an integer", showType(vTmp));
|
||||
state.throwEvalError(i_pos, "cannot add %1% to an integer", showType(vTmp), env, *this);
|
||||
} else if (firstType == nFloat) {
|
||||
if (vTmp.type() == nInt) {
|
||||
nf += vTmp.integer;
|
||||
} else if (vTmp.type() == nFloat) {
|
||||
nf += vTmp.fpoint;
|
||||
} else
|
||||
state.throwEvalError(i_pos, "cannot add %1% to a float", showType(vTmp));
|
||||
state.throwEvalError(i_pos, "cannot add %1% to a float", showType(vTmp), env, *this);
|
||||
} else {
|
||||
if (s.empty()) s.reserve(es->size());
|
||||
/* skip canonization of first path, which would only be not
|
||||
|
|
@ -1827,7 +2036,7 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v)
|
|||
v.mkFloat(nf);
|
||||
else if (firstType == nPath) {
|
||||
if (!context.empty())
|
||||
state.throwEvalError(pos, "a string that refers to a store path cannot be appended to a path");
|
||||
state.throwEvalError(pos, "a string that refers to a store path cannot be appended to a path", env, *this);
|
||||
v.mkPath(canonPath(str()));
|
||||
} else
|
||||
v.mkStringMove(c_str(), context);
|
||||
|
|
@ -1854,6 +2063,12 @@ void EvalState::forceValueDeep(Value & v)
|
|||
if (v.type() == nAttrs) {
|
||||
for (auto & i : *v.attrs)
|
||||
try {
|
||||
// If the value is a thunk, we're evaling. Otherwise no trace necessary.
|
||||
auto dts = debugRepl && i.value->isThunk()
|
||||
? makeDebugTraceStacker(*this, *i.value->thunk.expr, *i.value->thunk.env, positions[i.pos],
|
||||
"while evaluating the attribute '%1%'", symbols[i.name])
|
||||
: nullptr;
|
||||
|
||||
recurse(*i.value);
|
||||
} catch (Error & e) {
|
||||
addErrorTrace(e, i.pos, "while evaluating the attribute '%1%'", symbols[i.name]);
|
||||
|
|
@ -1876,6 +2091,7 @@ NixInt EvalState::forceInt(Value & v, const PosIdx pos)
|
|||
forceValue(v, pos);
|
||||
if (v.type() != nInt)
|
||||
throwTypeError(pos, "value is %1% while an integer was expected", v);
|
||||
|
||||
return v.integer;
|
||||
}
|
||||
|
||||
|
|
@ -1918,10 +2134,7 @@ std::string_view EvalState::forceString(Value & v, const PosIdx pos)
|
|||
{
|
||||
forceValue(v, pos);
|
||||
if (v.type() != nString) {
|
||||
if (pos)
|
||||
throwTypeError(pos, "value is %1% while a string was expected", v);
|
||||
else
|
||||
throwTypeError("value is %1% while a string was expected", v);
|
||||
throwTypeError(pos, "value is %1% while a string was expected", v);
|
||||
}
|
||||
return v.string.s;
|
||||
}
|
||||
|
|
@ -2038,7 +2251,8 @@ BackedStringView EvalState::coerceToString(const PosIdx pos, Value & v, PathSet
|
|||
if (maybeString)
|
||||
return std::move(*maybeString);
|
||||
auto i = v.attrs->find(sOutPath);
|
||||
if (i == v.attrs->end()) throwTypeError(pos, "cannot coerce a set to a string");
|
||||
if (i == v.attrs->end())
|
||||
throwTypeError(pos, "cannot coerce a set to a string");
|
||||
return coerceToString(pos, *i->value, context, coerceMore, copyToStore);
|
||||
}
|
||||
|
||||
|
|
@ -2046,7 +2260,6 @@ BackedStringView EvalState::coerceToString(const PosIdx pos, Value & v, PathSet
|
|||
return v.external->coerceToString(positions[pos], context, coerceMore, copyToStore);
|
||||
|
||||
if (coerceMore) {
|
||||
|
||||
/* Note that `false' is represented as an empty string for
|
||||
shell scripting convenience, just like `null'. */
|
||||
if (v.type() == nBool && v.boolean) return "1";
|
||||
|
|
@ -2191,7 +2404,9 @@ bool EvalState::eqValues(Value & v1, Value & v2)
|
|||
return v1.fpoint == v2.fpoint;
|
||||
|
||||
default:
|
||||
throwEvalError("cannot compare %1% with %2%", showType(v1), showType(v2));
|
||||
throwEvalError("cannot compare %1% with %2%",
|
||||
showType(v1),
|
||||
showType(v2));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -13,7 +13,6 @@
|
|||
#include <unordered_map>
|
||||
#include <mutex>
|
||||
|
||||
|
||||
namespace nix {
|
||||
|
||||
|
||||
|
|
@ -25,7 +24,6 @@ enum RepairFlag : bool;
|
|||
|
||||
typedef void (* PrimOpFun) (EvalState & state, const PosIdx pos, Value * * args, Value & v);
|
||||
|
||||
|
||||
struct PrimOp
|
||||
{
|
||||
PrimOpFun fun;
|
||||
|
|
@ -35,6 +33,11 @@ struct PrimOp
|
|||
const char * doc = nullptr;
|
||||
};
|
||||
|
||||
#if HAVE_BOEHMGC
|
||||
typedef std::map<std::string, Value *, std::less<std::string>, traceable_allocator<std::pair<const std::string, Value *> > > ValMap;
|
||||
#else
|
||||
typedef std::map<std::string, Value *> ValMap;
|
||||
#endif
|
||||
|
||||
struct Env
|
||||
{
|
||||
|
|
@ -44,6 +47,10 @@ struct Env
|
|||
Value * values[0];
|
||||
};
|
||||
|
||||
void printEnvBindings(const EvalState &es, const Expr & expr, const Env & env);
|
||||
void printEnvBindings(const SymbolTable & st, const StaticEnv & se, const Env & env, int lvl = 0);
|
||||
|
||||
std::unique_ptr<ValMap> mapStaticEnvBindings(const SymbolTable & st, const StaticEnv & se, const Env & env);
|
||||
|
||||
void copyContext(const Value & v, PathSet & context);
|
||||
|
||||
|
|
@ -70,8 +77,17 @@ struct RegexCache;
|
|||
|
||||
std::shared_ptr<RegexCache> makeRegexCache();
|
||||
|
||||
struct DebugTrace {
|
||||
std::optional<ErrPos> pos;
|
||||
const Expr & expr;
|
||||
const Env & env;
|
||||
hintformat hint;
|
||||
bool isError;
|
||||
};
|
||||
|
||||
class EvalState
|
||||
void debugError(Error * e, Env & env, Expr & expr);
|
||||
|
||||
class EvalState : public std::enable_shared_from_this<EvalState>
|
||||
{
|
||||
public:
|
||||
SymbolTable symbols;
|
||||
|
|
@ -109,6 +125,49 @@ public:
|
|||
RootValue vCallFlake = nullptr;
|
||||
RootValue vImportedDrvToDerivation = nullptr;
|
||||
|
||||
/* Debugger */
|
||||
void (* debugRepl)(ref<EvalState> es, const ValMap & extraEnv);
|
||||
bool debugStop;
|
||||
bool debugQuit;
|
||||
std::list<DebugTrace> debugTraces;
|
||||
std::map<const Expr*, const std::shared_ptr<const StaticEnv>> exprEnvs;
|
||||
const std::shared_ptr<const StaticEnv> getStaticEnv(const Expr & expr) const
|
||||
{
|
||||
auto i = exprEnvs.find(&expr);
|
||||
if (i != exprEnvs.end())
|
||||
return i->second;
|
||||
else
|
||||
return std::shared_ptr<const StaticEnv>();;
|
||||
}
|
||||
|
||||
void runDebugRepl(const Error * error, const Env & env, const Expr & expr);
|
||||
|
||||
template<class E>
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void debugThrow(E && error, const Env & env, const Expr & expr)
|
||||
{
|
||||
if (debugRepl)
|
||||
runDebugRepl(&error, env, expr);
|
||||
|
||||
throw error;
|
||||
}
|
||||
|
||||
template<class E>
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void debugThrowLastTrace(E && e)
|
||||
{
|
||||
// Call this in the situation where Expr and Env are inaccessible.
|
||||
// The debugger will start in the last context that's in the
|
||||
// DebugTrace stack.
|
||||
if (debugRepl && !debugTraces.empty()) {
|
||||
const DebugTrace & last = debugTraces.front();
|
||||
runDebugRepl(&e, last.env, last.expr);
|
||||
}
|
||||
|
||||
throw e;
|
||||
}
|
||||
|
||||
|
||||
private:
|
||||
SrcToStore srcToStore;
|
||||
|
||||
|
|
@ -185,10 +244,10 @@ public:
|
|||
|
||||
/* Parse a Nix expression from the specified file. */
|
||||
Expr * parseExprFromFile(const Path & path);
|
||||
Expr * parseExprFromFile(const Path & path, StaticEnv & staticEnv);
|
||||
Expr * parseExprFromFile(const Path & path, std::shared_ptr<StaticEnv> & staticEnv);
|
||||
|
||||
/* Parse a Nix expression from the specified string. */
|
||||
Expr * parseExprFromString(std::string s, const Path & basePath, StaticEnv & staticEnv);
|
||||
Expr * parseExprFromString(std::string s, const Path & basePath, std::shared_ptr<StaticEnv> & staticEnv);
|
||||
Expr * parseExprFromString(std::string s, const Path & basePath);
|
||||
|
||||
Expr * parseStdin();
|
||||
|
|
@ -198,7 +257,7 @@ public:
|
|||
trivial (i.e. doesn't require arbitrary computation). */
|
||||
void evalFile(const Path & path, Value & v, bool mustBeTrivial = false);
|
||||
|
||||
/* Like `cacheFile`, but with an already parsed expression. */
|
||||
/* Like `evalFile`, but with an already parsed expression. */
|
||||
void cacheFile(
|
||||
const Path & path,
|
||||
const Path & resolvedPath,
|
||||
|
|
@ -255,37 +314,68 @@ public:
|
|||
std::string_view forceStringNoCtx(Value & v, const PosIdx pos = noPos);
|
||||
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwEvalError(const PosIdx pos, const char * s) const;
|
||||
void throwEvalError(const PosIdx pos, const char * s);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwTypeError(const PosIdx pos, const char * s, const Value & v) const;
|
||||
void throwEvalError(const PosIdx pos, const char * s,
|
||||
Env & env, Expr & expr);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwEvalError(const char * s, const std::string & s2) const;
|
||||
void throwEvalError(const char * s, const std::string & s2);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwEvalError(const PosIdx pos, const Suggestions & suggestions, const char * s,
|
||||
const std::string & s2) const;
|
||||
void throwEvalError(const PosIdx pos, const char * s, const std::string & s2);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwEvalError(const PosIdx pos, const char * s, const std::string & s2) const;
|
||||
void throwEvalError(const char * s, const std::string & s2,
|
||||
Env & env, Expr & expr);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwEvalError(const char * s, const std::string & s2, const std::string & s3) const;
|
||||
void throwEvalError(const PosIdx pos, const char * s, const std::string & s2,
|
||||
Env & env, Expr & expr);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwEvalError(const PosIdx pos, const char * s, const std::string & s2, const std::string & s3) const;
|
||||
void throwEvalError(const char * s, const std::string & s2, const std::string & s3,
|
||||
Env & env, Expr & expr);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwEvalError(const PosIdx p1, const char * s, const Symbol sym, const PosIdx p2) const;
|
||||
void throwEvalError(const PosIdx pos, const char * s, const std::string & s2, const std::string & s3,
|
||||
Env & env, Expr & expr);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwTypeError(const PosIdx pos, const char * s) const;
|
||||
void throwEvalError(const PosIdx pos, const char * s, const std::string & s2, const std::string & s3);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwTypeError(const PosIdx pos, const char * s, const ExprLambda & fun, const Symbol s2) const;
|
||||
void throwEvalError(const char * s, const std::string & s2, const std::string & s3);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwTypeError(const PosIdx pos, const Suggestions & suggestions, const char * s,
|
||||
const ExprLambda & fun, const Symbol s2) const;
|
||||
void throwEvalError(const PosIdx pos, const Suggestions & suggestions, const char * s, const std::string & s2,
|
||||
Env & env, Expr & expr);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwTypeError(const char * s, const Value & v) const;
|
||||
void throwEvalError(const PosIdx p1, const char * s, const Symbol sym, const PosIdx p2,
|
||||
Env & env, Expr & expr);
|
||||
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwAssertionError(const PosIdx pos, const char * s, const std::string & s1) const;
|
||||
void throwTypeError(const PosIdx pos, const char * s, const Value & v);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwUndefinedVarError(const PosIdx pos, const char * s, const std::string & s1) const;
|
||||
void throwTypeError(const PosIdx pos, const char * s, const Value & v,
|
||||
Env & env, Expr & expr);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwMissingArgumentError(const PosIdx pos, const char * s, const std::string & s1) const;
|
||||
void throwTypeError(const PosIdx pos, const char * s);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwTypeError(const PosIdx pos, const char * s,
|
||||
Env & env, Expr & expr);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwTypeError(const PosIdx pos, const char * s, const ExprLambda & fun, const Symbol s2,
|
||||
Env & env, Expr & expr);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwTypeError(const PosIdx pos, const Suggestions & suggestions, const char * s, const ExprLambda & fun, const Symbol s2,
|
||||
Env & env, Expr & expr);
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwTypeError(const char * s, const Value & v,
|
||||
Env & env, Expr & expr);
|
||||
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwAssertionError(const PosIdx pos, const char * s, const std::string & s1,
|
||||
Env & env, Expr & expr);
|
||||
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwUndefinedVarError(const PosIdx pos, const char * s, const std::string & s1,
|
||||
Env & env, Expr & expr);
|
||||
|
||||
[[gnu::noinline, gnu::noreturn]]
|
||||
void throwMissingArgumentError(const PosIdx pos, const char * s, const std::string & s1,
|
||||
Env & env, Expr & expr);
|
||||
|
||||
[[gnu::noinline]]
|
||||
void addErrorTrace(Error & e, const char * s, const std::string & s2) const;
|
||||
|
|
@ -325,7 +415,7 @@ public:
|
|||
Env & baseEnv;
|
||||
|
||||
/* The same, but used during parsing to resolve variables. */
|
||||
StaticEnv staticBaseEnv; // !!! should be private
|
||||
std::shared_ptr<StaticEnv> staticBaseEnv; // !!! should be private
|
||||
|
||||
private:
|
||||
|
||||
|
|
@ -366,7 +456,7 @@ private:
|
|||
friend struct ExprLet;
|
||||
|
||||
Expr * parse(char * text, size_t length, FileOrigin origin, const PathView path,
|
||||
const PathView basePath, StaticEnv & staticEnv);
|
||||
const PathView basePath, std::shared_ptr<StaticEnv> & staticEnv);
|
||||
|
||||
public:
|
||||
|
||||
|
|
@ -461,6 +551,16 @@ private:
|
|||
friend struct Value;
|
||||
};
|
||||
|
||||
struct DebugTraceStacker {
|
||||
DebugTraceStacker(EvalState & evalState, DebugTrace t);
|
||||
~DebugTraceStacker()
|
||||
{
|
||||
// assert(evalState.debugTraces.front() == trace);
|
||||
evalState.debugTraces.pop_front();
|
||||
}
|
||||
EvalState & evalState;
|
||||
DebugTrace trace;
|
||||
};
|
||||
|
||||
/* Return a string representing the type of the value `v'. */
|
||||
std::string_view showType(ValueType type);
|
||||
|
|
|
|||
|
|
@ -6,10 +6,8 @@
|
|||
|
||||
#include <cstdlib>
|
||||
|
||||
|
||||
namespace nix {
|
||||
|
||||
|
||||
/* Displaying abstract syntax trees. */
|
||||
|
||||
static void showString(std::ostream & str, std::string_view s)
|
||||
|
|
@ -294,35 +292,46 @@ std::string showAttrPath(const SymbolTable & symbols, const AttrPath & attrPath)
|
|||
|
||||
/* Computing levels/displacements for variables. */
|
||||
|
||||
void Expr::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void Expr::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
abort();
|
||||
}
|
||||
|
||||
void ExprInt::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprInt::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
}
|
||||
|
||||
void ExprFloat::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprFloat::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
}
|
||||
|
||||
void ExprString::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprString::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
}
|
||||
|
||||
void ExprPath::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprPath::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
}
|
||||
|
||||
void ExprVar::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprVar::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
/* Check whether the variable appears in the environment. If so,
|
||||
set its level and displacement. */
|
||||
const StaticEnv * curEnv;
|
||||
Level level;
|
||||
int withLevel = -1;
|
||||
for (curEnv = &env, level = 0; curEnv; curEnv = curEnv->up, level++) {
|
||||
for (curEnv = env.get(), level = 0; curEnv; curEnv = curEnv->up, level++) {
|
||||
if (curEnv->isWith) {
|
||||
if (withLevel == -1) withLevel = level;
|
||||
} else {
|
||||
|
|
@ -348,8 +357,11 @@ void ExprVar::bindVars(const EvalState & es, const StaticEnv & env)
|
|||
this->level = withLevel;
|
||||
}
|
||||
|
||||
void ExprSelect::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprSelect::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
e->bindVars(es, env);
|
||||
if (def) def->bindVars(es, env);
|
||||
for (auto & i : attrPath)
|
||||
|
|
@ -357,64 +369,78 @@ void ExprSelect::bindVars(const EvalState & es, const StaticEnv & env)
|
|||
i.expr->bindVars(es, env);
|
||||
}
|
||||
|
||||
void ExprOpHasAttr::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprOpHasAttr::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
e->bindVars(es, env);
|
||||
for (auto & i : attrPath)
|
||||
if (!i.symbol)
|
||||
i.expr->bindVars(es, env);
|
||||
}
|
||||
|
||||
void ExprAttrs::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprAttrs::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
const StaticEnv * dynamicEnv = &env;
|
||||
StaticEnv newEnv(false, &env, recursive ? attrs.size() : 0);
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
if (recursive) {
|
||||
dynamicEnv = &newEnv;
|
||||
auto newEnv = std::make_shared<StaticEnv>(false, env.get(), recursive ? attrs.size() : 0);
|
||||
|
||||
Displacement displ = 0;
|
||||
for (auto & i : attrs)
|
||||
newEnv.vars.emplace_back(i.first, i.second.displ = displ++);
|
||||
newEnv->vars.emplace_back(i.first, i.second.displ = displ++);
|
||||
|
||||
// No need to sort newEnv since attrs is in sorted order.
|
||||
|
||||
for (auto & i : attrs)
|
||||
i.second.e->bindVars(es, i.second.inherited ? env : newEnv);
|
||||
}
|
||||
|
||||
else
|
||||
for (auto & i : dynamicAttrs) {
|
||||
i.nameExpr->bindVars(es, newEnv);
|
||||
i.valueExpr->bindVars(es, newEnv);
|
||||
}
|
||||
}
|
||||
else {
|
||||
for (auto & i : attrs)
|
||||
i.second.e->bindVars(es, env);
|
||||
|
||||
for (auto & i : dynamicAttrs) {
|
||||
i.nameExpr->bindVars(es, *dynamicEnv);
|
||||
i.valueExpr->bindVars(es, *dynamicEnv);
|
||||
for (auto & i : dynamicAttrs) {
|
||||
i.nameExpr->bindVars(es, env);
|
||||
i.valueExpr->bindVars(es, env);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void ExprList::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprList::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
for (auto & i : elems)
|
||||
i->bindVars(es, env);
|
||||
}
|
||||
|
||||
void ExprLambda::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprLambda::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
StaticEnv newEnv(
|
||||
false, &env,
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
auto newEnv = std::make_shared<StaticEnv>(
|
||||
false, env.get(),
|
||||
(hasFormals() ? formals->formals.size() : 0) +
|
||||
(!arg ? 0 : 1));
|
||||
|
||||
Displacement displ = 0;
|
||||
|
||||
if (arg) newEnv.vars.emplace_back(arg, displ++);
|
||||
if (arg) newEnv->vars.emplace_back(arg, displ++);
|
||||
|
||||
if (hasFormals()) {
|
||||
for (auto & i : formals->formals)
|
||||
newEnv.vars.emplace_back(i.name, displ++);
|
||||
newEnv->vars.emplace_back(i.name, displ++);
|
||||
|
||||
newEnv.sort();
|
||||
newEnv->sort();
|
||||
|
||||
for (auto & i : formals->formals)
|
||||
if (i.def) i.def->bindVars(es, newEnv);
|
||||
|
|
@ -423,20 +449,26 @@ void ExprLambda::bindVars(const EvalState & es, const StaticEnv & env)
|
|||
body->bindVars(es, newEnv);
|
||||
}
|
||||
|
||||
void ExprCall::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprCall::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
fun->bindVars(es, env);
|
||||
for (auto e : args)
|
||||
e->bindVars(es, env);
|
||||
}
|
||||
|
||||
void ExprLet::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprLet::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
StaticEnv newEnv(false, &env, attrs->attrs.size());
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
auto newEnv = std::make_shared<StaticEnv>(false, env.get(), attrs->attrs.size());
|
||||
|
||||
Displacement displ = 0;
|
||||
for (auto & i : attrs->attrs)
|
||||
newEnv.vars.emplace_back(i.first, i.second.displ = displ++);
|
||||
newEnv->vars.emplace_back(i.first, i.second.displ = displ++);
|
||||
|
||||
// No need to sort newEnv since attrs->attrs is in sorted order.
|
||||
|
||||
|
|
@ -446,51 +478,71 @@ void ExprLet::bindVars(const EvalState & es, const StaticEnv & env)
|
|||
body->bindVars(es, newEnv);
|
||||
}
|
||||
|
||||
void ExprWith::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprWith::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
/* Does this `with' have an enclosing `with'? If so, record its
|
||||
level so that `lookupVar' can look up variables in the previous
|
||||
`with' if this one doesn't contain the desired attribute. */
|
||||
const StaticEnv * curEnv;
|
||||
Level level;
|
||||
prevWith = 0;
|
||||
for (curEnv = &env, level = 1; curEnv; curEnv = curEnv->up, level++)
|
||||
for (curEnv = env.get(), level = 1; curEnv; curEnv = curEnv->up, level++)
|
||||
if (curEnv->isWith) {
|
||||
prevWith = level;
|
||||
break;
|
||||
}
|
||||
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
attrs->bindVars(es, env);
|
||||
StaticEnv newEnv(true, &env);
|
||||
auto newEnv = std::make_shared<StaticEnv>(true, env.get());
|
||||
body->bindVars(es, newEnv);
|
||||
}
|
||||
|
||||
void ExprIf::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprIf::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
cond->bindVars(es, env);
|
||||
then->bindVars(es, env);
|
||||
else_->bindVars(es, env);
|
||||
}
|
||||
|
||||
void ExprAssert::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprAssert::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
cond->bindVars(es, env);
|
||||
body->bindVars(es, env);
|
||||
}
|
||||
|
||||
void ExprOpNot::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprOpNot::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
e->bindVars(es, env);
|
||||
}
|
||||
|
||||
void ExprConcatStrings::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprConcatStrings::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
|
||||
for (auto & i : *this->es)
|
||||
i.second->bindVars(es, env);
|
||||
}
|
||||
|
||||
void ExprPos::bindVars(const EvalState & es, const StaticEnv & env)
|
||||
void ExprPos::bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env)
|
||||
{
|
||||
if (es.debugRepl)
|
||||
es.exprEnvs.insert(std::make_pair(this, env));
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -22,7 +22,6 @@ MakeError(UndefinedVarError, Error);
|
|||
MakeError(MissingArgumentError, EvalError);
|
||||
MakeError(RestrictedPathError, Error);
|
||||
|
||||
|
||||
/* Position objects. */
|
||||
|
||||
struct Pos
|
||||
|
|
@ -143,24 +142,25 @@ struct Expr
|
|||
{
|
||||
virtual ~Expr() { };
|
||||
virtual void show(const SymbolTable & symbols, std::ostream & str) const;
|
||||
virtual void bindVars(const EvalState & es, const StaticEnv & env);
|
||||
virtual void bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env);
|
||||
virtual void eval(EvalState & state, Env & env, Value & v);
|
||||
virtual Value * maybeThunk(EvalState & state, Env & env);
|
||||
virtual void setName(Symbol name);
|
||||
virtual PosIdx getPos() const { return noPos; }
|
||||
};
|
||||
|
||||
#define COMMON_METHODS \
|
||||
void show(const SymbolTable & symbols, std::ostream & str) const; \
|
||||
void eval(EvalState & state, Env & env, Value & v); \
|
||||
void bindVars(const EvalState & es, const StaticEnv & env);
|
||||
void bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env);
|
||||
|
||||
struct ExprInt : Expr
|
||||
{
|
||||
NixInt n;
|
||||
Value v;
|
||||
ExprInt(NixInt n) : n(n) { v.mkInt(n); };
|
||||
COMMON_METHODS
|
||||
Value * maybeThunk(EvalState & state, Env & env);
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
struct ExprFloat : Expr
|
||||
|
|
@ -168,8 +168,8 @@ struct ExprFloat : Expr
|
|||
NixFloat nf;
|
||||
Value v;
|
||||
ExprFloat(NixFloat nf) : nf(nf) { v.mkFloat(nf); };
|
||||
COMMON_METHODS
|
||||
Value * maybeThunk(EvalState & state, Env & env);
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
struct ExprString : Expr
|
||||
|
|
@ -177,8 +177,8 @@ struct ExprString : Expr
|
|||
std::string s;
|
||||
Value v;
|
||||
ExprString(std::string s) : s(std::move(s)) { v.mkString(this->s.data()); };
|
||||
COMMON_METHODS
|
||||
Value * maybeThunk(EvalState & state, Env & env);
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
struct ExprPath : Expr
|
||||
|
|
@ -186,8 +186,8 @@ struct ExprPath : Expr
|
|||
std::string s;
|
||||
Value v;
|
||||
ExprPath(std::string s) : s(std::move(s)) { v.mkPath(this->s.c_str()); };
|
||||
COMMON_METHODS
|
||||
Value * maybeThunk(EvalState & state, Env & env);
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
typedef uint32_t Level;
|
||||
|
|
@ -213,8 +213,9 @@ struct ExprVar : Expr
|
|||
|
||||
ExprVar(Symbol name) : name(name) { };
|
||||
ExprVar(const PosIdx & pos, Symbol name) : pos(pos), name(name) { };
|
||||
COMMON_METHODS
|
||||
Value * maybeThunk(EvalState & state, Env & env);
|
||||
PosIdx getPos() const override { return pos; }
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
struct ExprSelect : Expr
|
||||
|
|
@ -224,6 +225,7 @@ struct ExprSelect : Expr
|
|||
AttrPath attrPath;
|
||||
ExprSelect(const PosIdx & pos, Expr * e, const AttrPath & attrPath, Expr * def) : pos(pos), e(e), def(def), attrPath(attrPath) { };
|
||||
ExprSelect(const PosIdx & pos, Expr * e, Symbol name) : pos(pos), e(e), def(0) { attrPath.push_back(AttrName(name)); };
|
||||
PosIdx getPos() const override { return pos; }
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
|
|
@ -232,6 +234,7 @@ struct ExprOpHasAttr : Expr
|
|||
Expr * e;
|
||||
AttrPath attrPath;
|
||||
ExprOpHasAttr(Expr * e, const AttrPath & attrPath) : e(e), attrPath(attrPath) { };
|
||||
PosIdx getPos() const override { return e->getPos(); }
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
|
|
@ -260,6 +263,7 @@ struct ExprAttrs : Expr
|
|||
DynamicAttrDefs dynamicAttrs;
|
||||
ExprAttrs(const PosIdx &pos) : recursive(false), pos(pos) { };
|
||||
ExprAttrs() : recursive(false) { };
|
||||
PosIdx getPos() const override { return pos; }
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
|
|
@ -268,6 +272,11 @@ struct ExprList : Expr
|
|||
std::vector<Expr *> elems;
|
||||
ExprList() { };
|
||||
COMMON_METHODS
|
||||
|
||||
PosIdx getPos() const override
|
||||
{
|
||||
return elems.empty() ? noPos : elems.front()->getPos();
|
||||
}
|
||||
};
|
||||
|
||||
struct Formal
|
||||
|
|
@ -320,6 +329,7 @@ struct ExprLambda : Expr
|
|||
void setName(Symbol name);
|
||||
std::string showNamePos(const EvalState & state) const;
|
||||
inline bool hasFormals() const { return formals != nullptr; }
|
||||
PosIdx getPos() const override { return pos; }
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
|
|
@ -331,6 +341,7 @@ struct ExprCall : Expr
|
|||
ExprCall(const PosIdx & pos, Expr * fun, std::vector<Expr *> && args)
|
||||
: fun(fun), args(args), pos(pos)
|
||||
{ }
|
||||
PosIdx getPos() const override { return pos; }
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
|
|
@ -348,6 +359,7 @@ struct ExprWith : Expr
|
|||
Expr * attrs, * body;
|
||||
size_t prevWith;
|
||||
ExprWith(const PosIdx & pos, Expr * attrs, Expr * body) : pos(pos), attrs(attrs), body(body) { };
|
||||
PosIdx getPos() const override { return pos; }
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
|
|
@ -356,6 +368,7 @@ struct ExprIf : Expr
|
|||
PosIdx pos;
|
||||
Expr * cond, * then, * else_;
|
||||
ExprIf(const PosIdx & pos, Expr * cond, Expr * then, Expr * else_) : pos(pos), cond(cond), then(then), else_(else_) { };
|
||||
PosIdx getPos() const override { return pos; }
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
|
|
@ -364,6 +377,7 @@ struct ExprAssert : Expr
|
|||
PosIdx pos;
|
||||
Expr * cond, * body;
|
||||
ExprAssert(const PosIdx & pos, Expr * cond, Expr * body) : pos(pos), cond(cond), body(body) { };
|
||||
PosIdx getPos() const override { return pos; }
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
|
|
@ -385,11 +399,12 @@ struct ExprOpNot : Expr
|
|||
{ \
|
||||
str << "("; e1->show(symbols, str); str << " " s " "; e2->show(symbols, str); str << ")"; \
|
||||
} \
|
||||
void bindVars(const EvalState & es, const StaticEnv & env) \
|
||||
void bindVars(EvalState & es, const std::shared_ptr<const StaticEnv> & env) \
|
||||
{ \
|
||||
e1->bindVars(es, env); e2->bindVars(es, env); \
|
||||
} \
|
||||
void eval(EvalState & state, Env & env, Value & v); \
|
||||
PosIdx getPos() const override { return pos; } \
|
||||
};
|
||||
|
||||
MakeBinOp(ExprOpEq, "==")
|
||||
|
|
@ -407,6 +422,7 @@ struct ExprConcatStrings : Expr
|
|||
std::vector<std::pair<PosIdx, Expr *> > * es;
|
||||
ExprConcatStrings(const PosIdx & pos, bool forceString, std::vector<std::pair<PosIdx, Expr *> > * es)
|
||||
: pos(pos), forceString(forceString), es(es) { };
|
||||
PosIdx getPos() const override { return pos; }
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
|
|
@ -414,6 +430,7 @@ struct ExprPos : Expr
|
|||
{
|
||||
PosIdx pos;
|
||||
ExprPos(const PosIdx & pos) : pos(pos) { };
|
||||
PosIdx getPos() const override { return pos; }
|
||||
COMMON_METHODS
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -643,7 +643,7 @@ namespace nix {
|
|||
|
||||
|
||||
Expr * EvalState::parse(char * text, size_t length, FileOrigin origin,
|
||||
const PathView path, const PathView basePath, StaticEnv & staticEnv)
|
||||
const PathView path, const PathView basePath, std::shared_ptr<StaticEnv> & staticEnv)
|
||||
{
|
||||
yyscan_t scanner;
|
||||
std::string file;
|
||||
|
|
@ -706,7 +706,7 @@ Expr * EvalState::parseExprFromFile(const Path & path)
|
|||
}
|
||||
|
||||
|
||||
Expr * EvalState::parseExprFromFile(const Path & path, StaticEnv & staticEnv)
|
||||
Expr * EvalState::parseExprFromFile(const Path & path, std::shared_ptr<StaticEnv> & staticEnv)
|
||||
{
|
||||
auto buffer = readFile(path);
|
||||
// readFile should have left some extra space for terminators
|
||||
|
|
@ -715,7 +715,7 @@ Expr * EvalState::parseExprFromFile(const Path & path, StaticEnv & staticEnv)
|
|||
}
|
||||
|
||||
|
||||
Expr * EvalState::parseExprFromString(std::string s, const Path & basePath, StaticEnv & staticEnv)
|
||||
Expr * EvalState::parseExprFromString(std::string s, const Path & basePath, std::shared_ptr<StaticEnv> & staticEnv)
|
||||
{
|
||||
s.append("\0\0", 2);
|
||||
return parse(s.data(), s.size(), foString, "", basePath, staticEnv);
|
||||
|
|
@ -782,13 +782,13 @@ Path EvalState::findFile(SearchPath & searchPath, const std::string_view path, c
|
|||
if (hasPrefix(path, "nix/"))
|
||||
return concatStrings(corepkgsPrefix, path.substr(4));
|
||||
|
||||
throw ThrownError({
|
||||
debugThrowLastTrace(ThrownError({
|
||||
.msg = hintfmt(evalSettings.pureEval
|
||||
? "cannot look up '<%s>' in pure evaluation mode (use '--impure' to override)"
|
||||
: "file '%s' was not found in the Nix search path (add it using $NIX_PATH or -I)",
|
||||
path),
|
||||
.errPos = positions[pos]
|
||||
});
|
||||
}));
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -46,7 +46,7 @@ StringMap EvalState::realiseContext(const PathSet & context)
|
|||
auto [ctx, outputName] = decodeContext(*store, i);
|
||||
auto ctxS = store->printStorePath(ctx);
|
||||
if (!store->isValidPath(ctx))
|
||||
throw InvalidPathError(store->printStorePath(ctx));
|
||||
debugThrowLastTrace(InvalidPathError(store->printStorePath(ctx)));
|
||||
if (!outputName.empty() && ctx.isDerivation()) {
|
||||
drvs.push_back({ctx, {outputName}});
|
||||
} else {
|
||||
|
|
@ -57,9 +57,9 @@ StringMap EvalState::realiseContext(const PathSet & context)
|
|||
if (drvs.empty()) return {};
|
||||
|
||||
if (!evalSettings.enableImportFromDerivation)
|
||||
throw Error(
|
||||
debugThrowLastTrace(Error(
|
||||
"cannot build '%1%' during evaluation because the option 'allow-import-from-derivation' is disabled",
|
||||
store->printStorePath(drvs.begin()->drvPath));
|
||||
store->printStorePath(drvs.begin()->drvPath)));
|
||||
|
||||
/* Build/substitute the context. */
|
||||
std::vector<DerivedPath> buildReqs;
|
||||
|
|
@ -72,8 +72,8 @@ StringMap EvalState::realiseContext(const PathSet & context)
|
|||
for (auto & outputName : outputs) {
|
||||
auto outputPath = get(outputPaths, outputName);
|
||||
if (!outputPath)
|
||||
throw Error("derivation '%s' does not have an output named '%s'",
|
||||
store->printStorePath(drvPath), outputName);
|
||||
debugThrowLastTrace(Error("derivation '%s' does not have an output named '%s'",
|
||||
store->printStorePath(drvPath), outputName));
|
||||
res.insert_or_assign(
|
||||
downstreamPlaceholder(*store, drvPath, outputName),
|
||||
store->printStorePath(*outputPath)
|
||||
|
|
@ -216,11 +216,11 @@ static void import(EvalState & state, const PosIdx pos, Value & vPath, Value * v
|
|||
Env * env = &state.allocEnv(vScope->attrs->size());
|
||||
env->up = &state.baseEnv;
|
||||
|
||||
StaticEnv staticEnv(false, &state.staticBaseEnv, vScope->attrs->size());
|
||||
auto staticEnv = std::make_shared<StaticEnv>(false, state.staticBaseEnv.get(), vScope->attrs->size());
|
||||
|
||||
unsigned int displ = 0;
|
||||
for (auto & attr : *vScope->attrs) {
|
||||
staticEnv.vars.emplace_back(attr.name, displ);
|
||||
staticEnv->vars.emplace_back(attr.name, displ);
|
||||
env->values[displ++] = attr.value;
|
||||
}
|
||||
|
||||
|
|
@ -319,17 +319,16 @@ void prim_importNative(EvalState & state, const PosIdx pos, Value * * args, Valu
|
|||
|
||||
void *handle = dlopen(path.c_str(), RTLD_LAZY | RTLD_LOCAL);
|
||||
if (!handle)
|
||||
throw EvalError("could not open '%1%': %2%", path, dlerror());
|
||||
state.debugThrowLastTrace(EvalError("could not open '%1%': %2%", path, dlerror()));
|
||||
|
||||
dlerror();
|
||||
ValueInitializer func = (ValueInitializer) dlsym(handle, sym.c_str());
|
||||
if(!func) {
|
||||
char *message = dlerror();
|
||||
if (message)
|
||||
throw EvalError("could not load symbol '%1%' from '%2%': %3%", sym, path, message);
|
||||
state.debugThrowLastTrace(EvalError("could not load symbol '%1%' from '%2%': %3%", sym, path, message));
|
||||
else
|
||||
throw EvalError("symbol '%1%' from '%2%' resolved to NULL when a function pointer was expected",
|
||||
sym, path);
|
||||
state.debugThrowLastTrace(EvalError("symbol '%1%' from '%2%' resolved to NULL when a function pointer was expected", sym, path));
|
||||
}
|
||||
|
||||
(func)(state, v);
|
||||
|
|
@ -344,12 +343,11 @@ void prim_exec(EvalState & state, const PosIdx pos, Value * * args, Value & v)
|
|||
state.forceList(*args[0], pos);
|
||||
auto elems = args[0]->listElems();
|
||||
auto count = args[0]->listSize();
|
||||
if (count == 0) {
|
||||
throw EvalError({
|
||||
if (count == 0)
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("at least one argument to 'exec' required"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}
|
||||
}));
|
||||
PathSet context;
|
||||
auto program = state.coerceToString(pos, *elems[0], context, false, false).toOwned();
|
||||
Strings commandArgs;
|
||||
|
|
@ -359,11 +357,11 @@ void prim_exec(EvalState & state, const PosIdx pos, Value * * args, Value & v)
|
|||
try {
|
||||
auto _ = state.realiseContext(context); // FIXME: Handle CA derivations
|
||||
} catch (InvalidPathError & e) {
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("cannot execute '%1%', since path '%2%' is not valid",
|
||||
program, e.path),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
}
|
||||
|
||||
auto output = runProgram(program, true, commandArgs);
|
||||
|
|
@ -547,7 +545,7 @@ struct CompareValues
|
|||
if (v1->type() == nInt && v2->type() == nFloat)
|
||||
return v1->integer < v2->fpoint;
|
||||
if (v1->type() != v2->type())
|
||||
throw EvalError("cannot compare %1% with %2%", showType(*v1), showType(*v2));
|
||||
state.debugThrowLastTrace(EvalError("cannot compare %1% with %2%", showType(*v1), showType(*v2)));
|
||||
switch (v1->type()) {
|
||||
case nInt:
|
||||
return v1->integer < v2->integer;
|
||||
|
|
@ -569,7 +567,7 @@ struct CompareValues
|
|||
}
|
||||
}
|
||||
default:
|
||||
throw EvalError("cannot compare %1% with %2%", showType(*v1), showType(*v2));
|
||||
state.debugThrowLastTrace(EvalError("cannot compare %1% with %2%", showType(*v1), showType(*v2)));
|
||||
}
|
||||
}
|
||||
};
|
||||
|
|
@ -599,10 +597,10 @@ static Bindings::iterator getAttr(
|
|||
|
||||
auto aPos = attrSet->pos;
|
||||
if (!aPos) {
|
||||
throw TypeError({
|
||||
state.debugThrowLastTrace(TypeError({
|
||||
.msg = errorMsg,
|
||||
.errPos = state.positions[pos],
|
||||
});
|
||||
}));
|
||||
} else {
|
||||
auto e = TypeError({
|
||||
.msg = errorMsg,
|
||||
|
|
@ -612,7 +610,7 @@ static Bindings::iterator getAttr(
|
|||
// Adding another trace for the function name to make it clear
|
||||
// which call received wrong arguments.
|
||||
e.addTrace(state.positions[pos], hintfmt("while invoking '%s'", funcName));
|
||||
throw e;
|
||||
state.debugThrowLastTrace(e);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -666,10 +664,10 @@ static void prim_genericClosure(EvalState & state, const PosIdx pos, Value * * a
|
|||
Bindings::iterator key =
|
||||
e->attrs->find(state.sKey);
|
||||
if (key == e->attrs->end())
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("attribute 'key' required"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
state.forceValue(*key->value, pos);
|
||||
|
||||
if (!doneKeys.insert(key->value).second) continue;
|
||||
|
|
@ -725,6 +723,41 @@ static RegisterPrimOp primop_genericClosure(RegisterPrimOp::Info {
|
|||
.fun = prim_genericClosure,
|
||||
});
|
||||
|
||||
|
||||
static RegisterPrimOp primop_break({
|
||||
.name = "break",
|
||||
.args = {"v"},
|
||||
.doc = R"(
|
||||
In debug mode (enabled using `--debugger`), pause Nix expression evaluation and enter the REPL.
|
||||
Otherwise, return the argument `v`.
|
||||
)",
|
||||
.fun = [](EvalState & state, const PosIdx pos, Value * * args, Value & v)
|
||||
{
|
||||
if (state.debugRepl && !state.debugTraces.empty()) {
|
||||
auto error = Error(ErrorInfo {
|
||||
.level = lvlInfo,
|
||||
.msg = hintfmt("breakpoint reached"),
|
||||
.errPos = state.positions[pos],
|
||||
});
|
||||
|
||||
auto & dt = state.debugTraces.front();
|
||||
state.runDebugRepl(&error, dt.env, dt.expr);
|
||||
|
||||
if (state.debugQuit) {
|
||||
// If the user elects to quit the repl, throw an exception.
|
||||
throw Error(ErrorInfo{
|
||||
.level = lvlInfo,
|
||||
.msg = hintfmt("quit the debugger"),
|
||||
.errPos = state.positions[noPos],
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
// Return the value we were passed.
|
||||
v = *args[0];
|
||||
}
|
||||
});
|
||||
|
||||
static RegisterPrimOp primop_abort({
|
||||
.name = "abort",
|
||||
.args = {"s"},
|
||||
|
|
@ -735,7 +768,7 @@ static RegisterPrimOp primop_abort({
|
|||
{
|
||||
PathSet context;
|
||||
auto s = state.coerceToString(pos, *args[0], context).toOwned();
|
||||
throw Abort("evaluation aborted with the following error message: '%1%'", s);
|
||||
state.debugThrowLastTrace(Abort("evaluation aborted with the following error message: '%1%'", s));
|
||||
}
|
||||
});
|
||||
|
||||
|
|
@ -753,7 +786,7 @@ static RegisterPrimOp primop_throw({
|
|||
{
|
||||
PathSet context;
|
||||
auto s = state.coerceToString(pos, *args[0], context).toOwned();
|
||||
throw ThrownError(s);
|
||||
state.debugThrowLastTrace(ThrownError(s));
|
||||
}
|
||||
});
|
||||
|
||||
|
|
@ -1008,37 +1041,37 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
|
|||
if (s == "recursive") ingestionMethod = FileIngestionMethod::Recursive;
|
||||
else if (s == "flat") ingestionMethod = FileIngestionMethod::Flat;
|
||||
else
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("invalid value '%s' for 'outputHashMode' attribute", s),
|
||||
.errPos = state.positions[posDrvName]
|
||||
});
|
||||
}));
|
||||
};
|
||||
|
||||
auto handleOutputs = [&](const Strings & ss) {
|
||||
outputs.clear();
|
||||
for (auto & j : ss) {
|
||||
if (outputs.find(j) != outputs.end())
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("duplicate derivation output '%1%'", j),
|
||||
.errPos = state.positions[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({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("invalid derivation output name 'drv'" ),
|
||||
.errPos = state.positions[posDrvName]
|
||||
});
|
||||
}));
|
||||
outputs.insert(j);
|
||||
}
|
||||
if (outputs.empty())
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("derivation cannot have an empty set of outputs"),
|
||||
.errPos = state.positions[posDrvName]
|
||||
});
|
||||
}));
|
||||
};
|
||||
|
||||
try {
|
||||
|
|
@ -1163,23 +1196,23 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
|
|||
|
||||
/* Do we have all required attributes? */
|
||||
if (drv.builder == "")
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("required attribute 'builder' missing"),
|
||||
.errPos = state.positions[posDrvName]
|
||||
});
|
||||
}));
|
||||
|
||||
if (drv.platform == "")
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("required attribute 'system' missing"),
|
||||
.errPos = state.positions[posDrvName]
|
||||
});
|
||||
}));
|
||||
|
||||
/* Check whether the derivation name is valid. */
|
||||
if (isDerivation(drvName))
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("derivation names are not allowed to end in '%s'", drvExtension),
|
||||
.errPos = state.positions[posDrvName]
|
||||
});
|
||||
}));
|
||||
|
||||
if (outputHash) {
|
||||
/* Handle fixed-output derivations.
|
||||
|
|
@ -1187,10 +1220,10 @@ static void prim_derivationStrict(EvalState & state, const PosIdx pos, Value * *
|
|||
Ignore `__contentAddressed` because fixed output derivations are
|
||||
already content addressed. */
|
||||
if (outputs.size() != 1 || *(outputs.begin()) != "out")
|
||||
throw Error({
|
||||
state.debugThrowLastTrace(Error({
|
||||
.msg = hintfmt("multiple outputs are not supported in fixed-output derivations"),
|
||||
.errPos = state.positions[posDrvName]
|
||||
});
|
||||
}));
|
||||
|
||||
auto h = newHashAllowEmpty(*outputHash, parseHashTypeOpt(outputHashAlgo));
|
||||
|
||||
|
|
@ -1358,10 +1391,10 @@ static RegisterPrimOp primop_toPath({
|
|||
static void prim_storePath(EvalState & state, const PosIdx pos, Value * * args, Value & v)
|
||||
{
|
||||
if (evalSettings.pureEval)
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("'%s' is not allowed in pure evaluation mode", "builtins.storePath"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
PathSet context;
|
||||
Path path = state.checkSourcePath(state.coerceToPath(pos, *args[0], context));
|
||||
|
|
@ -1370,10 +1403,10 @@ static void prim_storePath(EvalState & state, const PosIdx pos, Value * * args,
|
|||
e.g. nix-push does the right thing. */
|
||||
if (!state.store->isStorePath(path)) path = canonPath(path, true);
|
||||
if (!state.store->isInStore(path))
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("path '%1%' is not in the Nix store", path),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
auto path2 = state.store->toStorePath(path).first;
|
||||
if (!settings.readOnlyMode)
|
||||
state.store->ensurePath(path2);
|
||||
|
|
@ -1476,7 +1509,7 @@ static void prim_readFile(EvalState & state, const PosIdx pos, Value * * args, V
|
|||
auto path = realisePath(state, pos, *args[0]);
|
||||
auto s = readFile(path);
|
||||
if (s.find((char) 0) != std::string::npos)
|
||||
throw Error("the contents of the file '%1%' cannot be represented as a Nix string", path);
|
||||
state.debugThrowLastTrace(Error("the contents of the file '%1%' cannot be represented as a Nix string", path));
|
||||
StorePathSet refs;
|
||||
if (state.store->isInStore(path)) {
|
||||
try {
|
||||
|
|
@ -1528,13 +1561,12 @@ static void prim_findFile(EvalState & state, const PosIdx pos, Value * * args, V
|
|||
auto rewrites = state.realiseContext(context);
|
||||
path = rewriteStrings(path, rewrites);
|
||||
} catch (InvalidPathError & e) {
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("cannot find '%1%', since path '%2%' is not valid", path, e.path),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
}
|
||||
|
||||
|
||||
searchPath.emplace_back(prefix, path);
|
||||
}
|
||||
|
||||
|
|
@ -1555,10 +1587,10 @@ static void prim_hashFile(EvalState & state, const PosIdx pos, Value * * args, V
|
|||
auto type = state.forceStringNoCtx(*args[0], pos);
|
||||
std::optional<HashType> ht = parseHashType(type);
|
||||
if (!ht)
|
||||
throw Error({
|
||||
state.debugThrowLastTrace(Error({
|
||||
.msg = hintfmt("unknown hash type '%1%'", type),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
auto path = realisePath(state, pos, *args[1]);
|
||||
|
||||
|
|
@ -1795,13 +1827,13 @@ static void prim_toFile(EvalState & state, const PosIdx pos, Value * * args, Val
|
|||
|
||||
for (auto path : context) {
|
||||
if (path.at(0) != '/')
|
||||
throw EvalError( {
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt(
|
||||
"in 'toFile': the file named '%1%' must not contain a reference "
|
||||
"to a derivation but contains (%2%)",
|
||||
name, path),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
refs.insert(state.store->parseStorePath(path));
|
||||
}
|
||||
|
||||
|
|
@ -1959,7 +1991,7 @@ static void addPath(
|
|||
? state.store->computeStorePathForPath(name, path, method, htSHA256, filter).first
|
||||
: state.store->addToStore(name, path, method, htSHA256, filter, state.repair, refs);
|
||||
if (expectedHash && expectedStorePath != dstPath)
|
||||
throw Error("store path mismatch in (possibly filtered) path added from '%s'", path);
|
||||
state.debugThrowLastTrace(Error("store path mismatch in (possibly filtered) path added from '%s'", path));
|
||||
state.allowAndSetStorePathString(dstPath, v);
|
||||
} else
|
||||
state.allowAndSetStorePathString(*expectedStorePath, v);
|
||||
|
|
@ -1977,12 +2009,12 @@ static void prim_filterSource(EvalState & state, const PosIdx pos, Value * * arg
|
|||
|
||||
state.forceValue(*args[0], pos);
|
||||
if (args[0]->type() != nFunction)
|
||||
throw TypeError({
|
||||
state.debugThrowLastTrace(TypeError({
|
||||
.msg = hintfmt(
|
||||
"first argument in call to 'filterSource' is not a function but %1%",
|
||||
showType(*args[0])),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
addPath(state, pos, std::string(baseNameOf(path)), path, args[0], FileIngestionMethod::Recursive, std::nullopt, v, context);
|
||||
}
|
||||
|
|
@ -2066,16 +2098,16 @@ static void prim_path(EvalState & state, const PosIdx pos, Value * * args, Value
|
|||
else if (n == "sha256")
|
||||
expectedHash = newHashAllowEmpty(state.forceStringNoCtx(*attr.value, attr.pos), htSHA256);
|
||||
else
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("unsupported argument '%1%' to 'addPath'", state.symbols[attr.name]),
|
||||
.errPos = state.positions[attr.pos]
|
||||
});
|
||||
}));
|
||||
}
|
||||
if (path.empty())
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("'path' required"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
if (name.empty())
|
||||
name = baseNameOf(path);
|
||||
|
||||
|
|
@ -2447,10 +2479,10 @@ static void prim_functionArgs(EvalState & state, const PosIdx pos, Value * * arg
|
|||
return;
|
||||
}
|
||||
if (!args[0]->isLambda())
|
||||
throw TypeError({
|
||||
state.debugThrowLastTrace(TypeError({
|
||||
.msg = hintfmt("'functionArgs' requires a function"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
if (!args[0]->lambda.fun->hasFormals()) {
|
||||
v.mkAttrs(&state.emptyBindings);
|
||||
|
|
@ -2538,7 +2570,7 @@ static void prim_zipAttrsWith(EvalState & state, const PosIdx pos, Value * * arg
|
|||
attrsSeen[attr.name].first++;
|
||||
} catch (TypeError & e) {
|
||||
e.addTrace(state.positions[pos], hintfmt("while invoking '%s'", "zipAttrsWith"));
|
||||
throw;
|
||||
state.debugThrowLastTrace(e);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -2625,10 +2657,10 @@ static void elemAt(EvalState & state, const PosIdx pos, Value & list, int n, Val
|
|||
{
|
||||
state.forceList(list, pos);
|
||||
if (n < 0 || (unsigned int) n >= list.listSize())
|
||||
throw Error({
|
||||
state.debugThrowLastTrace(Error({
|
||||
.msg = hintfmt("list index %1% is out of bounds", n),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
state.forceValue(*list.listElems()[n], pos);
|
||||
v = *list.listElems()[n];
|
||||
}
|
||||
|
|
@ -2673,10 +2705,10 @@ static void prim_tail(EvalState & state, const PosIdx pos, Value * * args, Value
|
|||
{
|
||||
state.forceList(*args[0], pos);
|
||||
if (args[0]->listSize() == 0)
|
||||
throw Error({
|
||||
state.debugThrowLastTrace(Error({
|
||||
.msg = hintfmt("'tail' called on an empty list"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
state.mkList(v, args[0]->listSize() - 1);
|
||||
for (unsigned int n = 0; n < v.listSize(); ++n)
|
||||
|
|
@ -2911,10 +2943,10 @@ static void prim_genList(EvalState & state, const PosIdx pos, Value * * args, Va
|
|||
auto len = state.forceInt(*args[1], pos);
|
||||
|
||||
if (len < 0)
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("cannot create list of size %1%", len),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
state.mkList(v, len);
|
||||
|
||||
|
|
@ -3123,7 +3155,7 @@ static void prim_concatMap(EvalState & state, const PosIdx pos, Value * * args,
|
|||
state.forceList(lists[n], lists[n].determinePos(args[0]->determinePos(pos)));
|
||||
} catch (TypeError &e) {
|
||||
e.addTrace(state.positions[pos], hintfmt("while invoking '%s'", "concatMap"));
|
||||
throw;
|
||||
state.debugThrowLastTrace(e);
|
||||
}
|
||||
len += lists[n].listSize();
|
||||
}
|
||||
|
|
@ -3218,10 +3250,10 @@ static void prim_div(EvalState & state, const PosIdx pos, Value * * args, Value
|
|||
|
||||
NixFloat f2 = state.forceFloat(*args[1], pos);
|
||||
if (f2 == 0)
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("division by zero"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
if (args[0]->type() == nFloat || args[1]->type() == nFloat) {
|
||||
v.mkFloat(state.forceFloat(*args[0], pos) / state.forceFloat(*args[1], pos));
|
||||
|
|
@ -3230,10 +3262,10 @@ static void prim_div(EvalState & state, const PosIdx pos, Value * * args, Value
|
|||
NixInt i2 = state.forceInt(*args[1], pos);
|
||||
/* Avoid division overflow as it might raise SIGFPE. */
|
||||
if (i1 == std::numeric_limits<NixInt>::min() && i2 == -1)
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("overflow in integer division"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
v.mkInt(i1 / i2);
|
||||
}
|
||||
|
|
@ -3361,10 +3393,10 @@ static void prim_substring(EvalState & state, const PosIdx pos, Value * * args,
|
|||
auto s = state.coerceToString(pos, *args[2], context);
|
||||
|
||||
if (start < 0)
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("negative start position in 'substring'"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
v.mkString((unsigned int) start >= s->size() ? "" : s->substr(start, len), context);
|
||||
}
|
||||
|
|
@ -3412,10 +3444,10 @@ static void prim_hashString(EvalState & state, const PosIdx pos, Value * * args,
|
|||
auto type = state.forceStringNoCtx(*args[0], pos);
|
||||
std::optional<HashType> ht = parseHashType(type);
|
||||
if (!ht)
|
||||
throw Error({
|
||||
state.debugThrowLastTrace(Error({
|
||||
.msg = hintfmt("unknown hash type '%1%'", type),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
PathSet context; // discarded
|
||||
auto s = state.forceString(*args[1], context, pos);
|
||||
|
|
@ -3485,16 +3517,15 @@ void prim_match(EvalState & state, const PosIdx 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({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("memory limit exceeded by regular expression '%s'", re),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
} else {
|
||||
throw EvalError({
|
||||
}));
|
||||
} else
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("invalid regular expression '%s'", re),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}
|
||||
}));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -3590,16 +3621,15 @@ void prim_split(EvalState & state, const PosIdx 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({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("memory limit exceeded by regular expression '%s'", re),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
} else {
|
||||
throw EvalError({
|
||||
}));
|
||||
} else
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("invalid regular expression '%s'", re),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}
|
||||
}));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -3675,10 +3705,10 @@ static void prim_replaceStrings(EvalState & state, const PosIdx pos, Value * * a
|
|||
state.forceList(*args[0], pos);
|
||||
state.forceList(*args[1], pos);
|
||||
if (args[0]->listSize() != args[1]->listSize())
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("'from' and 'to' arguments to 'replaceStrings' have different lengths"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
std::vector<std::string> from;
|
||||
from.reserve(args[0]->listSize());
|
||||
|
|
@ -3931,7 +3961,7 @@ void EvalState::createBaseEnv()
|
|||
because attribute lookups expect it to be sorted. */
|
||||
baseEnv.values[0]->attrs->sort();
|
||||
|
||||
staticBaseEnv.sort();
|
||||
staticBaseEnv->sort();
|
||||
|
||||
/* Note: we have to initialize the 'derivation' constant *after*
|
||||
building baseEnv/staticBaseEnv because it uses 'builtins'. */
|
||||
|
|
|
|||
|
|
@ -108,16 +108,16 @@ static void fetchTree(
|
|||
|
||||
if (auto aType = args[0]->attrs->get(state.sType)) {
|
||||
if (type)
|
||||
throw Error({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("unexpected attribute 'type'"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
type = state.forceStringNoCtx(*aType->value, aType->pos);
|
||||
} else if (!type)
|
||||
throw Error({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("attribute 'type' is missing in call to 'fetchTree'"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
attrs.emplace("type", type.value());
|
||||
|
||||
|
|
@ -138,16 +138,16 @@ static void fetchTree(
|
|||
else if (attr.value->type() == nInt)
|
||||
attrs.emplace(state.symbols[attr.name], uint64_t(attr.value->integer));
|
||||
else
|
||||
throw TypeError("fetchTree argument '%s' is %s while a string, Boolean or integer is expected",
|
||||
state.symbols[attr.name], showType(*attr.value));
|
||||
state.debugThrowLastTrace(TypeError("fetchTree argument '%s' is %s while a string, Boolean or integer is expected",
|
||||
state.symbols[attr.name], showType(*attr.value)));
|
||||
}
|
||||
|
||||
if (!params.allowNameArgument)
|
||||
if (auto nameIter = attrs.find("name"); nameIter != attrs.end())
|
||||
throw Error({
|
||||
.msg = hintfmt("attribute 'name' isn't supported in call to 'fetchTree'"),
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("attribute 'name' isn’t supported in call to 'fetchTree'"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
|
||||
input = fetchers::Input::fromAttrs(std::move(attrs));
|
||||
} else {
|
||||
|
|
@ -167,7 +167,7 @@ static void fetchTree(
|
|||
input = lookupInRegistries(state.store, input).first;
|
||||
|
||||
if (evalSettings.pureEval && !input.isLocked())
|
||||
throw Error("in pure evaluation mode, 'fetchTree' requires a locked input, at %s", state.positions[pos]);
|
||||
state.debugThrowLastTrace(EvalError("in pure evaluation mode, 'fetchTree' requires a locked input, at %s", state.positions[pos]));
|
||||
|
||||
auto [tree, input2] = input.fetch(state.store);
|
||||
|
||||
|
|
@ -206,17 +206,17 @@ static void fetch(EvalState & state, const PosIdx pos, Value * * args, Value & v
|
|||
else if (n == "name")
|
||||
name = state.forceStringNoCtx(*attr.value, attr.pos);
|
||||
else
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("unsupported argument '%s' to '%s'", n, who),
|
||||
.errPos = state.positions[attr.pos]
|
||||
});
|
||||
}
|
||||
}));
|
||||
}
|
||||
|
||||
if (!url)
|
||||
throw EvalError({
|
||||
state.debugThrowLastTrace(EvalError({
|
||||
.msg = hintfmt("'url' argument required"),
|
||||
.errPos = state.positions[pos]
|
||||
});
|
||||
}));
|
||||
} else
|
||||
url = state.forceStringNoCtx(*args[0], pos);
|
||||
|
||||
|
|
@ -228,7 +228,7 @@ static void fetch(EvalState & state, const PosIdx pos, Value * * args, Value & v
|
|||
name = baseNameOf(*url);
|
||||
|
||||
if (evalSettings.pureEval && !expectedHash)
|
||||
throw Error("in pure evaluation mode, '%s' requires a 'sha256' argument", who);
|
||||
state.debugThrowLastTrace(EvalError("in pure evaluation mode, '%s' requires a 'sha256' argument", who));
|
||||
|
||||
// early exit if pinned and already in the store
|
||||
if (expectedHash && expectedHash->type == htSHA256) {
|
||||
|
|
@ -255,8 +255,8 @@ static void fetch(EvalState & state, const PosIdx pos, Value * * args, Value & v
|
|||
? state.store->queryPathInfo(storePath)->narHash
|
||||
: hashFile(htSHA256, state.store->toRealPath(storePath));
|
||||
if (hash != *expectedHash)
|
||||
throw Error((unsigned int) 102, "hash mismatch in file downloaded from '%s':\n specified: %s\n got: %s",
|
||||
*url, expectedHash->to_string(Base32, true), hash.to_string(Base32, true));
|
||||
state.debugThrowLastTrace(EvalError((unsigned int) 102, "hash mismatch in file downloaded from '%s':\n specified: %s\n got: %s",
|
||||
*url, expectedHash->to_string(Base32, true), hash.to_string(Base32, true)));
|
||||
}
|
||||
|
||||
state.allowAndSetStorePathString(storePath, v);
|
||||
|
|
|
|||
|
|
@ -85,6 +85,7 @@ void printValueAsJSON(EvalState & state, bool strict,
|
|||
.errPos = state.positions[v.determinePos(pos)]
|
||||
});
|
||||
e.addTrace(state.positions[pos], hintfmt("message for the trace"));
|
||||
state.debugThrowLastTrace(e);
|
||||
throw e;
|
||||
}
|
||||
}
|
||||
|
|
@ -99,7 +100,7 @@ void printValueAsJSON(EvalState & state, bool strict,
|
|||
void ExternalValueBase::printValueAsJSON(EvalState & state, bool strict,
|
||||
JSONPlaceholder & out, PathSet & context) const
|
||||
{
|
||||
throw TypeError("cannot convert %1% to JSON", showType());
|
||||
state.debugThrowLastTrace(TypeError("cannot convert %1% to JSON", showType()));
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -98,6 +98,15 @@ struct ErrPos {
|
|||
}
|
||||
};
|
||||
|
||||
std::optional<LinesOfCode> getCodeLines(const ErrPos & errPos);
|
||||
|
||||
void printCodeLines(std::ostream & out,
|
||||
const std::string & prefix,
|
||||
const ErrPos & errPos,
|
||||
const LinesOfCode & loc);
|
||||
|
||||
void printAtPos(const ErrPos & pos, std::ostream & out);
|
||||
|
||||
struct Trace {
|
||||
std::optional<ErrPos> pos;
|
||||
hintformat hint;
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@
|
|||
namespace nix {
|
||||
|
||||
/* A simple non-nullable reference-counted pointer. Actually a wrapper
|
||||
around std::shared_ptr that prevents non-null constructions. */
|
||||
around std::shared_ptr that prevents null constructions. */
|
||||
template<typename T>
|
||||
class ref
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in a new issue