Merge pull request #7451 from edolstra/abstract-pos
Introduce AbstractPos
This commit is contained in:
Eelco Dolstra
GitHub
commit
8332ac6a1d
16 changed files with 229 additions and 281 deletions
|
|
@ -215,17 +215,15 @@ static std::ostream & showDebugTrace(std::ostream & out, const PosTable & positi
|
|||
out << dt.hint.str() << "\n";
|
||||
|
||||
// prefer direct pos, but if noPos then try the expr.
|
||||
auto pos = *dt.pos
|
||||
? *dt.pos
|
||||
: positions[dt.expr.getPos() ? dt.expr.getPos() : noPos];
|
||||
auto pos = dt.pos
|
||||
? dt.pos
|
||||
: static_cast<std::shared_ptr<AbstractPos>>(positions[dt.expr.getPos() ? dt.expr.getPos() : noPos]);
|
||||
|
||||
if (pos) {
|
||||
printAtPos(pos, out);
|
||||
|
||||
auto loc = getCodeLines(pos);
|
||||
if (loc.has_value()) {
|
||||
out << pos;
|
||||
if (auto loc = pos->getCodeLines()) {
|
||||
out << "\n";
|
||||
printCodeLines(out, "", pos, *loc);
|
||||
printCodeLines(out, "", *pos, *loc);
|
||||
out << "\n";
|
||||
}
|
||||
}
|
||||
|
|
@ -589,15 +587,17 @@ bool NixRepl::processLine(std::string line)
|
|||
Value v;
|
||||
evalString(arg, v);
|
||||
|
||||
const auto [file, line] = [&] () -> std::pair<std::string, uint32_t> {
|
||||
const auto [path, line] = [&] () -> std::pair<Path, uint32_t> {
|
||||
if (v.type() == nPath || v.type() == nString) {
|
||||
PathSet context;
|
||||
auto filename = state->coerceToString(noPos, v, context).toOwned();
|
||||
state->symbols.create(filename);
|
||||
return {filename, 0};
|
||||
auto path = state->coerceToPath(noPos, v, context);
|
||||
return {path, 0};
|
||||
} else if (v.isLambda()) {
|
||||
auto pos = state->positions[v.lambda.fun->pos];
|
||||
return {pos.file, pos.line};
|
||||
if (auto path = std::get_if<Path>(&pos.origin))
|
||||
return {*path, pos.line};
|
||||
else
|
||||
throw Error("'%s' cannot be shown in an editor", pos);
|
||||
} else {
|
||||
// assume it's a derivation
|
||||
return findPackageFilename(*state, v, arg);
|
||||
|
|
@ -605,7 +605,7 @@ bool NixRepl::processLine(std::string line)
|
|||
}();
|
||||
|
||||
// Open in EDITOR
|
||||
auto args = editorFor(file, line);
|
||||
auto args = editorFor(path, line);
|
||||
auto editor = args.front();
|
||||
args.pop_front();
|
||||
|
||||
|
|
|
|||
|
|
@ -820,7 +820,7 @@ void EvalState::runDebugRepl(const Error * error, const Env & env, const Expr &
|
|||
? std::make_unique<DebugTraceStacker>(
|
||||
*this,
|
||||
DebugTrace {
|
||||
.pos = error->info().errPos ? *error->info().errPos : positions[expr.getPos()],
|
||||
.pos = error->info().errPos ? error->info().errPos : static_cast<std::shared_ptr<AbstractPos>>(positions[expr.getPos()]),
|
||||
.expr = expr,
|
||||
.env = env,
|
||||
.hint = error->info().msg,
|
||||
|
|
@ -1009,7 +1009,7 @@ void EvalState::throwMissingArgumentError(const PosIdx pos, const char * s, cons
|
|||
|
||||
void EvalState::addErrorTrace(Error & e, const char * s, const std::string & s2) const
|
||||
{
|
||||
e.addTrace(std::nullopt, s, s2);
|
||||
e.addTrace(nullptr, s, s2);
|
||||
}
|
||||
|
||||
void EvalState::addErrorTrace(Error & e, const PosIdx pos, const char * s, const std::string & s2) const
|
||||
|
|
@ -1021,13 +1021,13 @@ static std::unique_ptr<DebugTraceStacker> makeDebugTraceStacker(
|
|||
EvalState & state,
|
||||
Expr & expr,
|
||||
Env & env,
|
||||
std::optional<ErrPos> pos,
|
||||
std::shared_ptr<AbstractPos> && pos,
|
||||
const char * s,
|
||||
const std::string & s2)
|
||||
{
|
||||
return std::make_unique<DebugTraceStacker>(state,
|
||||
DebugTrace {
|
||||
.pos = pos,
|
||||
.pos = std::move(pos),
|
||||
.expr = expr,
|
||||
.env = env,
|
||||
.hint = hintfmt(s, s2),
|
||||
|
|
@ -1133,9 +1133,9 @@ void EvalState::mkThunk_(Value & v, Expr * expr)
|
|||
void EvalState::mkPos(Value & v, PosIdx p)
|
||||
{
|
||||
auto pos = positions[p];
|
||||
if (!pos.file.empty()) {
|
||||
if (auto path = std::get_if<Path>(&pos.origin)) {
|
||||
auto attrs = buildBindings(3);
|
||||
attrs.alloc(sFile).mkString(pos.file);
|
||||
attrs.alloc(sFile).mkString(*path);
|
||||
attrs.alloc(sLine).mkInt(pos.line);
|
||||
attrs.alloc(sColumn).mkInt(pos.column);
|
||||
v.mkAttrs(attrs);
|
||||
|
|
@ -1243,7 +1243,7 @@ void EvalState::cacheFile(
|
|||
*this,
|
||||
*e,
|
||||
this->baseEnv,
|
||||
e->getPos() ? std::optional(ErrPos(positions[e->getPos()])) : std::nullopt,
|
||||
e->getPos() ? static_cast<std::shared_ptr<AbstractPos>>(positions[e->getPos()]) : nullptr,
|
||||
"while evaluating the file '%1%':", resolvedPath)
|
||||
: nullptr;
|
||||
|
||||
|
|
@ -1514,10 +1514,13 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v)
|
|||
state.forceValue(*vAttrs, (pos2 ? pos2 : this->pos ) );
|
||||
|
||||
} catch (Error & e) {
|
||||
auto pos2r = state.positions[pos2];
|
||||
if (pos2 && pos2r.file != state.derivationNixPath)
|
||||
state.addErrorTrace(e, pos2, "while evaluating the attribute '%1%'",
|
||||
showAttrPath(state, env, attrPath));
|
||||
if (pos2) {
|
||||
auto pos2r = state.positions[pos2];
|
||||
auto origin = std::get_if<Path>(&pos2r.origin);
|
||||
if (!(origin && *origin == state.derivationNixPath))
|
||||
state.addErrorTrace(e, pos2, "while evaluating the attribute '%1%'",
|
||||
showAttrPath(state, env, attrPath));
|
||||
}
|
||||
throw;
|
||||
}
|
||||
|
||||
|
|
@ -2494,7 +2497,8 @@ void EvalState::printStats()
|
|||
else
|
||||
obj["name"] = nullptr;
|
||||
if (auto pos = positions[fun->pos]) {
|
||||
obj["file"] = (std::string_view) pos.file;
|
||||
if (auto path = std::get_if<Path>(&pos.origin))
|
||||
obj["file"] = *path;
|
||||
obj["line"] = pos.line;
|
||||
obj["column"] = pos.column;
|
||||
}
|
||||
|
|
@ -2508,7 +2512,8 @@ void EvalState::printStats()
|
|||
for (auto & i : attrSelects) {
|
||||
json obj = json::object();
|
||||
if (auto pos = positions[i.first]) {
|
||||
obj["file"] = (const std::string &) pos.file;
|
||||
if (auto path = std::get_if<Path>(&pos.origin))
|
||||
obj["file"] = *path;
|
||||
obj["line"] = pos.line;
|
||||
obj["column"] = pos.column;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -78,7 +78,7 @@ struct RegexCache;
|
|||
std::shared_ptr<RegexCache> makeRegexCache();
|
||||
|
||||
struct DebugTrace {
|
||||
std::optional<ErrPos> pos;
|
||||
std::shared_ptr<AbstractPos> pos;
|
||||
const Expr & expr;
|
||||
const Env & env;
|
||||
hintformat hint;
|
||||
|
|
@ -457,8 +457,12 @@ private:
|
|||
friend struct ExprAttrs;
|
||||
friend struct ExprLet;
|
||||
|
||||
Expr * parse(char * text, size_t length, FileOrigin origin, const PathView path,
|
||||
const PathView basePath, std::shared_ptr<StaticEnv> & staticEnv);
|
||||
Expr * parse(
|
||||
char * text,
|
||||
size_t length,
|
||||
Pos::Origin origin,
|
||||
Path basePath,
|
||||
std::shared_ptr<StaticEnv> & staticEnv);
|
||||
|
||||
public:
|
||||
|
||||
|
|
|
|||
|
|
@ -220,7 +220,7 @@ static Flake getFlake(
|
|||
Value vInfo;
|
||||
state.evalFile(flakeFile, vInfo, true); // FIXME: symlink attack
|
||||
|
||||
expectType(state, nAttrs, vInfo, state.positions.add({flakeFile, foFile}, 0, 0));
|
||||
expectType(state, nAttrs, vInfo, state.positions.add({flakeFile}, 1, 1));
|
||||
|
||||
if (auto description = vInfo.attrs->get(state.sDescription)) {
|
||||
expectType(state, nString, *description->value, description->pos);
|
||||
|
|
|
|||
|
|
@ -8,6 +8,58 @@
|
|||
|
||||
namespace nix {
|
||||
|
||||
struct PosAdapter : AbstractPos
|
||||
{
|
||||
Pos::Origin origin;
|
||||
|
||||
PosAdapter(Pos::Origin origin)
|
||||
: origin(std::move(origin))
|
||||
{
|
||||
}
|
||||
|
||||
std::optional<std::string> getSource() const override
|
||||
{
|
||||
return std::visit(overloaded {
|
||||
[](const Pos::none_tag &) -> std::optional<std::string> {
|
||||
return std::nullopt;
|
||||
},
|
||||
[](const Pos::Stdin & s) -> std::optional<std::string> {
|
||||
// Get rid of the null terminators added by the parser.
|
||||
return std::string(s.source->c_str());
|
||||
},
|
||||
[](const Pos::String & s) -> std::optional<std::string> {
|
||||
// Get rid of the null terminators added by the parser.
|
||||
return std::string(s.source->c_str());
|
||||
},
|
||||
[](const Path & path) -> std::optional<std::string> {
|
||||
try {
|
||||
return readFile(path);
|
||||
} catch (Error &) {
|
||||
return std::nullopt;
|
||||
}
|
||||
}
|
||||
}, origin);
|
||||
}
|
||||
|
||||
void print(std::ostream & out) const override
|
||||
{
|
||||
std::visit(overloaded {
|
||||
[&](const Pos::none_tag &) { out << "«none»"; },
|
||||
[&](const Pos::Stdin &) { out << "«stdin»"; },
|
||||
[&](const Pos::String & s) { out << "«string»"; },
|
||||
[&](const Path & path) { out << path; }
|
||||
}, origin);
|
||||
}
|
||||
};
|
||||
|
||||
Pos::operator std::shared_ptr<AbstractPos>() const
|
||||
{
|
||||
auto pos = std::make_shared<PosAdapter>(origin);
|
||||
pos->line = line;
|
||||
pos->column = column;
|
||||
return pos;
|
||||
}
|
||||
|
||||
/* Displaying abstract syntax trees. */
|
||||
|
||||
static void showString(std::ostream & str, std::string_view s)
|
||||
|
|
@ -248,24 +300,10 @@ void ExprPos::show(const SymbolTable & symbols, std::ostream & str) const
|
|||
|
||||
std::ostream & operator << (std::ostream & str, const Pos & pos)
|
||||
{
|
||||
if (!pos)
|
||||
if (auto pos2 = (std::shared_ptr<AbstractPos>) pos) {
|
||||
str << *pos2;
|
||||
} else
|
||||
str << "undefined position";
|
||||
else
|
||||
{
|
||||
auto f = format(ANSI_BOLD "%1%" ANSI_NORMAL ":%2%:%3%");
|
||||
switch (pos.origin) {
|
||||
case foFile:
|
||||
f % (const std::string &) pos.file;
|
||||
break;
|
||||
case foStdin:
|
||||
case foString:
|
||||
f % "(string)";
|
||||
break;
|
||||
default:
|
||||
throw Error("unhandled Pos origin!");
|
||||
}
|
||||
str << (f % pos.line % pos.column).str();
|
||||
}
|
||||
|
||||
return str;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -23,15 +23,22 @@ MakeError(MissingArgumentError, EvalError);
|
|||
MakeError(RestrictedPathError, Error);
|
||||
|
||||
/* Position objects. */
|
||||
|
||||
struct Pos
|
||||
{
|
||||
std::string file;
|
||||
FileOrigin origin;
|
||||
uint32_t line;
|
||||
uint32_t column;
|
||||
|
||||
struct none_tag { };
|
||||
struct Stdin { ref<std::string> source; };
|
||||
struct String { ref<std::string> source; };
|
||||
|
||||
typedef std::variant<none_tag, Stdin, String, Path> Origin;
|
||||
|
||||
Origin origin;
|
||||
|
||||
explicit operator bool() const { return line > 0; }
|
||||
|
||||
operator std::shared_ptr<AbstractPos>() const;
|
||||
};
|
||||
|
||||
class PosIdx {
|
||||
|
|
@ -47,7 +54,11 @@ public:
|
|||
|
||||
explicit operator bool() const { return id > 0; }
|
||||
|
||||
bool operator<(const PosIdx other) const { return id < other.id; }
|
||||
bool operator <(const PosIdx other) const { return id < other.id; }
|
||||
|
||||
bool operator ==(const PosIdx other) const { return id == other.id; }
|
||||
|
||||
bool operator !=(const PosIdx other) const { return id != other.id; }
|
||||
};
|
||||
|
||||
class PosTable
|
||||
|
|
@ -61,13 +72,13 @@ public:
|
|||
// current origins.back() can be reused or not.
|
||||
mutable uint32_t idx = std::numeric_limits<uint32_t>::max();
|
||||
|
||||
explicit Origin(uint32_t idx): idx(idx), file{}, origin{} {}
|
||||
// Used for searching in PosTable::[].
|
||||
explicit Origin(uint32_t idx): idx(idx), origin{Pos::none_tag()} {}
|
||||
|
||||
public:
|
||||
const std::string file;
|
||||
const FileOrigin origin;
|
||||
const Pos::Origin origin;
|
||||
|
||||
Origin(std::string file, FileOrigin origin): file(std::move(file)), origin(origin) {}
|
||||
Origin(Pos::Origin origin): origin(origin) {}
|
||||
};
|
||||
|
||||
struct Offset {
|
||||
|
|
@ -107,7 +118,7 @@ public:
|
|||
[] (const auto & a, const auto & b) { return a.idx < b.idx; });
|
||||
const auto origin = *std::prev(pastOrigin);
|
||||
const auto offset = offsets[idx];
|
||||
return {origin.file, origin.origin, offset.line, offset.column};
|
||||
return {offset.line, offset.column, origin.origin};
|
||||
}
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -34,11 +34,6 @@ namespace nix {
|
|||
Path basePath;
|
||||
PosTable::Origin origin;
|
||||
std::optional<ErrorInfo> error;
|
||||
ParseData(EvalState & state, PosTable::Origin origin)
|
||||
: state(state)
|
||||
, symbols(state.symbols)
|
||||
, origin(std::move(origin))
|
||||
{ };
|
||||
};
|
||||
|
||||
struct ParserFormals {
|
||||
|
|
@ -649,24 +644,20 @@ formal
|
|||
namespace nix {
|
||||
|
||||
|
||||
Expr * EvalState::parse(char * text, size_t length, FileOrigin origin,
|
||||
const PathView path, const PathView basePath, std::shared_ptr<StaticEnv> & staticEnv)
|
||||
Expr * EvalState::parse(
|
||||
char * text,
|
||||
size_t length,
|
||||
Pos::Origin origin,
|
||||
Path basePath,
|
||||
std::shared_ptr<StaticEnv> & staticEnv)
|
||||
{
|
||||
yyscan_t scanner;
|
||||
std::string file;
|
||||
switch (origin) {
|
||||
case foFile:
|
||||
file = path;
|
||||
break;
|
||||
case foStdin:
|
||||
case foString:
|
||||
file = text;
|
||||
break;
|
||||
default:
|
||||
assert(false);
|
||||
}
|
||||
ParseData data(*this, {file, origin});
|
||||
data.basePath = basePath;
|
||||
ParseData data {
|
||||
.state = *this,
|
||||
.symbols = symbols,
|
||||
.basePath = std::move(basePath),
|
||||
.origin = {origin},
|
||||
};
|
||||
|
||||
yylex_init(&scanner);
|
||||
yy_scan_buffer(text, length, scanner);
|
||||
|
|
@ -718,14 +709,15 @@ Expr * EvalState::parseExprFromFile(const Path & path, std::shared_ptr<StaticEnv
|
|||
auto buffer = readFile(path);
|
||||
// readFile should have left some extra space for terminators
|
||||
buffer.append("\0\0", 2);
|
||||
return parse(buffer.data(), buffer.size(), foFile, path, dirOf(path), staticEnv);
|
||||
return parse(buffer.data(), buffer.size(), path, dirOf(path), staticEnv);
|
||||
}
|
||||
|
||||
|
||||
Expr * EvalState::parseExprFromString(std::string s, const Path & basePath, std::shared_ptr<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);
|
||||
auto s = make_ref<std::string>(std::move(s_));
|
||||
s->append("\0\0", 2);
|
||||
return parse(s->data(), s->size(), Pos::String{.source = s}, basePath, staticEnv);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -741,7 +733,8 @@ Expr * EvalState::parseStdin()
|
|||
auto buffer = drainFD(0);
|
||||
// drainFD should have left some extra space for terminators
|
||||
buffer.append("\0\0", 2);
|
||||
return parse(buffer.data(), buffer.size(), foStdin, "", absPath("."), staticBaseEnv);
|
||||
auto s = make_ref<std::string>(std::move(buffer));
|
||||
return parse(s->data(), s->size(), Pos::Stdin{.source = s}, absPath("."), staticBaseEnv);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -368,8 +368,7 @@ void prim_exec(EvalState & state, const PosIdx pos, Value * * args, Value & v)
|
|||
auto output = runProgram(program, true, commandArgs);
|
||||
Expr * parsed;
|
||||
try {
|
||||
auto base = state.positions[pos];
|
||||
parsed = state.parseExprFromString(std::move(output), base.file);
|
||||
parsed = state.parseExprFromString(std::move(output), "/");
|
||||
} catch (Error & e) {
|
||||
e.addTrace(state.positions[pos], "While parsing the output from '%1%'", program);
|
||||
throw;
|
||||
|
|
@ -798,7 +797,7 @@ static void prim_addErrorContext(EvalState & state, const PosIdx pos, Value * *
|
|||
v = *args[1];
|
||||
} catch (Error & e) {
|
||||
PathSet context;
|
||||
e.addTrace(std::nullopt, state.coerceToString(pos, *args[0], context).toOwned());
|
||||
e.addTrace(nullptr, state.coerceToString(pos, *args[0], context).toOwned());
|
||||
throw;
|
||||
}
|
||||
}
|
||||
|
|
@ -4018,7 +4017,7 @@ void EvalState::createBaseEnv()
|
|||
// the parser needs two NUL bytes as terminators; one of them
|
||||
// is implied by being a C string.
|
||||
"\0";
|
||||
eval(parse(code, sizeof(code), foFile, derivationNixPath, "/", staticBaseEnv), *vDerivation);
|
||||
eval(parse(code, sizeof(code), derivationNixPath, "/", staticBaseEnv), *vDerivation);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -123,7 +123,7 @@ namespace nix {
|
|||
|
||||
MATCHER_P(IsAttrsOfSize, n, fmt("Is a set of size [%1%]", n)) {
|
||||
if (arg.type() != nAttrs) {
|
||||
*result_listener << "Expexted set got " << arg.type();
|
||||
*result_listener << "Expected set got " << arg.type();
|
||||
return false;
|
||||
} else if (arg.attrs->size() != (size_t)n) {
|
||||
*result_listener << "Expected a set with " << n << " attributes but got " << arg.attrs->size();
|
||||
|
|
|
|||
|
|
@ -151,20 +151,7 @@ namespace nix {
|
|||
// The `y` attribute is at position
|
||||
const char* expr = "builtins.unsafeGetAttrPos \"y\" { y = \"x\"; }";
|
||||
auto v = eval(expr);
|
||||
ASSERT_THAT(v, IsAttrsOfSize(3));
|
||||
|
||||
auto file = v.attrs->find(createSymbol("file"));
|
||||
ASSERT_NE(file, nullptr);
|
||||
// FIXME: The file when running these tests is the input string?!?
|
||||
ASSERT_THAT(*file->value, IsStringEq(expr));
|
||||
|
||||
auto line = v.attrs->find(createSymbol("line"));
|
||||
ASSERT_NE(line, nullptr);
|
||||
ASSERT_THAT(*line->value, IsIntEq(1));
|
||||
|
||||
auto column = v.attrs->find(createSymbol("column"));
|
||||
ASSERT_NE(column, nullptr);
|
||||
ASSERT_THAT(*column->value, IsIntEq(33));
|
||||
ASSERT_THAT(v, IsNull());
|
||||
}
|
||||
|
||||
TEST_F(PrimOpTest, hasAttr) {
|
||||
|
|
|
|||
|
|
@ -24,7 +24,8 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
|
|||
|
||||
static void posToXML(EvalState & state, XMLAttrs & xmlAttrs, const Pos & pos)
|
||||
{
|
||||
xmlAttrs["path"] = pos.file;
|
||||
if (auto path = std::get_if<Path>(&pos.origin))
|
||||
xmlAttrs["path"] = *path;
|
||||
xmlAttrs["line"] = (format("%1%") % pos.line).str();
|
||||
xmlAttrs["column"] = (format("%1%") % pos.column).str();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -9,9 +9,9 @@ namespace nix {
|
|||
|
||||
const std::string nativeSystem = SYSTEM;
|
||||
|
||||
void BaseError::addTrace(std::optional<ErrPos> e, hintformat hint)
|
||||
void BaseError::addTrace(std::shared_ptr<AbstractPos> && e, hintformat hint)
|
||||
{
|
||||
err.traces.push_front(Trace { .pos = e, .hint = hint });
|
||||
err.traces.push_front(Trace { .pos = std::move(e), .hint = hint });
|
||||
}
|
||||
|
||||
// c++ std::exception descendants must have a 'const char* what()' function.
|
||||
|
|
@ -30,91 +30,46 @@ const std::string & BaseError::calcWhat() const
|
|||
|
||||
std::optional<std::string> ErrorInfo::programName = std::nullopt;
|
||||
|
||||
std::ostream & operator<<(std::ostream & os, const hintformat & hf)
|
||||
std::ostream & operator <<(std::ostream & os, const hintformat & hf)
|
||||
{
|
||||
return os << hf.str();
|
||||
}
|
||||
|
||||
std::string showErrPos(const ErrPos & errPos)
|
||||
std::ostream & operator <<(std::ostream & str, const AbstractPos & pos)
|
||||
{
|
||||
if (errPos.line > 0) {
|
||||
if (errPos.column > 0) {
|
||||
return fmt("%d:%d", errPos.line, errPos.column);
|
||||
} else {
|
||||
return fmt("%d", errPos.line);
|
||||
}
|
||||
}
|
||||
else {
|
||||
return "";
|
||||
}
|
||||
pos.print(str);
|
||||
str << ":" << pos.line;
|
||||
if (pos.column > 0)
|
||||
str << ":" << pos.column;
|
||||
return str;
|
||||
}
|
||||
|
||||
std::optional<LinesOfCode> getCodeLines(const ErrPos & errPos)
|
||||
std::optional<LinesOfCode> AbstractPos::getCodeLines() const
|
||||
{
|
||||
if (errPos.line <= 0)
|
||||
if (line == 0)
|
||||
return std::nullopt;
|
||||
|
||||
if (errPos.origin == foFile) {
|
||||
LinesOfCode loc;
|
||||
try {
|
||||
// FIXME: when running as the daemon, make sure we don't
|
||||
// open a file to which the client doesn't have access.
|
||||
AutoCloseFD fd = open(errPos.file.c_str(), O_RDONLY | O_CLOEXEC);
|
||||
if (!fd) return {};
|
||||
if (auto source = getSource()) {
|
||||
|
||||
// count the newlines.
|
||||
int count = 0;
|
||||
std::string line;
|
||||
int pl = errPos.line - 1;
|
||||
do
|
||||
{
|
||||
line = readLine(fd.get());
|
||||
++count;
|
||||
if (count < pl)
|
||||
;
|
||||
else if (count == pl)
|
||||
loc.prevLineOfCode = line;
|
||||
else if (count == pl + 1)
|
||||
loc.errLineOfCode = line;
|
||||
else if (count == pl + 2) {
|
||||
loc.nextLineOfCode = line;
|
||||
break;
|
||||
}
|
||||
} while (true);
|
||||
return loc;
|
||||
}
|
||||
catch (EndOfFile & eof) {
|
||||
if (loc.errLineOfCode.has_value())
|
||||
return loc;
|
||||
else
|
||||
return std::nullopt;
|
||||
}
|
||||
catch (std::exception & e) {
|
||||
return std::nullopt;
|
||||
}
|
||||
} else {
|
||||
std::istringstream iss(errPos.file);
|
||||
std::istringstream iss(*source);
|
||||
// count the newlines.
|
||||
int count = 0;
|
||||
std::string line;
|
||||
int pl = errPos.line - 1;
|
||||
std::string curLine;
|
||||
int pl = line - 1;
|
||||
|
||||
LinesOfCode loc;
|
||||
|
||||
do
|
||||
{
|
||||
std::getline(iss, line);
|
||||
do {
|
||||
std::getline(iss, curLine);
|
||||
++count;
|
||||
if (count < pl)
|
||||
{
|
||||
;
|
||||
}
|
||||
else if (count == pl) {
|
||||
loc.prevLineOfCode = line;
|
||||
loc.prevLineOfCode = curLine;
|
||||
} else if (count == pl + 1) {
|
||||
loc.errLineOfCode = line;
|
||||
loc.errLineOfCode = curLine;
|
||||
} else if (count == pl + 2) {
|
||||
loc.nextLineOfCode = line;
|
||||
loc.nextLineOfCode = curLine;
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
@ -124,12 +79,14 @@ std::optional<LinesOfCode> getCodeLines(const ErrPos & errPos)
|
|||
|
||||
return loc;
|
||||
}
|
||||
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
// print lines of code to the ostream, indicating the error column.
|
||||
void printCodeLines(std::ostream & out,
|
||||
const std::string & prefix,
|
||||
const ErrPos & errPos,
|
||||
const AbstractPos & errPos,
|
||||
const LinesOfCode & loc)
|
||||
{
|
||||
// previous line of code.
|
||||
|
|
@ -176,28 +133,6 @@ void printCodeLines(std::ostream & out,
|
|||
}
|
||||
}
|
||||
|
||||
void printAtPos(const ErrPos & pos, std::ostream & out)
|
||||
{
|
||||
if (pos) {
|
||||
switch (pos.origin) {
|
||||
case foFile: {
|
||||
out << fmt(ANSI_BLUE "at " ANSI_WARNING "%s:%s" ANSI_NORMAL ":", pos.file, showErrPos(pos));
|
||||
break;
|
||||
}
|
||||
case foString: {
|
||||
out << fmt(ANSI_BLUE "at " ANSI_WARNING "«string»:%s" ANSI_NORMAL ":", showErrPos(pos));
|
||||
break;
|
||||
}
|
||||
case foStdin: {
|
||||
out << fmt(ANSI_BLUE "at " ANSI_WARNING "«stdin»:%s" ANSI_NORMAL ":", showErrPos(pos));
|
||||
break;
|
||||
}
|
||||
default:
|
||||
throw Error("invalid FileOrigin in errPos");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static std::string indent(std::string_view indentFirst, std::string_view indentRest, std::string_view s)
|
||||
{
|
||||
std::string res;
|
||||
|
|
@ -263,22 +198,22 @@ std::ostream & showErrorInfo(std::ostream & out, const ErrorInfo & einfo, bool s
|
|||
|
||||
std::ostringstream oss;
|
||||
|
||||
auto noSource = ANSI_ITALIC " (source not available)" ANSI_NORMAL "\n";
|
||||
|
||||
// traces
|
||||
if (showTrace && !einfo.traces.empty()) {
|
||||
for (const auto & trace : einfo.traces) {
|
||||
oss << "\n" << "… " << trace.hint.str() << "\n";
|
||||
|
||||
if (trace.pos.has_value() && (*trace.pos)) {
|
||||
auto pos = trace.pos.value();
|
||||
oss << "\n";
|
||||
printAtPos(pos, oss);
|
||||
if (trace.pos) {
|
||||
oss << "\n" << ANSI_BLUE << "at " ANSI_WARNING << *trace.pos << ANSI_NORMAL << ":";
|
||||
|
||||
auto loc = getCodeLines(pos);
|
||||
if (loc.has_value()) {
|
||||
if (auto loc = trace.pos->getCodeLines()) {
|
||||
oss << "\n";
|
||||
printCodeLines(oss, "", pos, *loc);
|
||||
printCodeLines(oss, "", *trace.pos, *loc);
|
||||
oss << "\n";
|
||||
}
|
||||
} else
|
||||
oss << noSource;
|
||||
}
|
||||
}
|
||||
oss << "\n" << prefix;
|
||||
|
|
@ -286,22 +221,19 @@ std::ostream & showErrorInfo(std::ostream & out, const ErrorInfo & einfo, bool s
|
|||
|
||||
oss << einfo.msg << "\n";
|
||||
|
||||
if (einfo.errPos.has_value() && *einfo.errPos) {
|
||||
oss << "\n";
|
||||
printAtPos(*einfo.errPos, oss);
|
||||
if (einfo.errPos) {
|
||||
oss << "\n" << ANSI_BLUE << "at " ANSI_WARNING << *einfo.errPos << ANSI_NORMAL << ":";
|
||||
|
||||
auto loc = getCodeLines(*einfo.errPos);
|
||||
|
||||
// lines of code.
|
||||
if (loc.has_value()) {
|
||||
if (auto loc = einfo.errPos->getCodeLines()) {
|
||||
oss << "\n";
|
||||
printCodeLines(oss, "", *einfo.errPos, *loc);
|
||||
oss << "\n";
|
||||
}
|
||||
} else
|
||||
oss << noSource;
|
||||
}
|
||||
|
||||
auto suggestions = einfo.suggestions.trim();
|
||||
if (! suggestions.suggestions.empty()){
|
||||
if (!suggestions.suggestions.empty()) {
|
||||
oss << "Did you mean " <<
|
||||
suggestions.trim() <<
|
||||
"?" << std::endl;
|
||||
|
|
|
|||
|
|
@ -54,13 +54,6 @@ typedef enum {
|
|||
lvlVomit
|
||||
} Verbosity;
|
||||
|
||||
/* adjust Pos::origin bit width when adding stuff here */
|
||||
typedef enum {
|
||||
foFile,
|
||||
foStdin,
|
||||
foString
|
||||
} FileOrigin;
|
||||
|
||||
// the lines of code surrounding an error.
|
||||
struct LinesOfCode {
|
||||
std::optional<std::string> prevLineOfCode;
|
||||
|
|
@ -68,54 +61,37 @@ struct LinesOfCode {
|
|||
std::optional<std::string> nextLineOfCode;
|
||||
};
|
||||
|
||||
// ErrPos indicates the location of an error in a nix file.
|
||||
struct ErrPos {
|
||||
int line = 0;
|
||||
int column = 0;
|
||||
std::string file;
|
||||
FileOrigin origin;
|
||||
/* An abstract type that represents a location in a source file. */
|
||||
struct AbstractPos
|
||||
{
|
||||
uint32_t line = 0;
|
||||
uint32_t column = 0;
|
||||
|
||||
operator bool() const
|
||||
{
|
||||
return line != 0;
|
||||
}
|
||||
/* Return the contents of the source file. */
|
||||
virtual std::optional<std::string> getSource() const
|
||||
{ return std::nullopt; };
|
||||
|
||||
// convert from the Pos struct, found in libexpr.
|
||||
template <class P>
|
||||
ErrPos & operator=(const P & pos)
|
||||
{
|
||||
origin = pos.origin;
|
||||
line = pos.line;
|
||||
column = pos.column;
|
||||
file = pos.file;
|
||||
return *this;
|
||||
}
|
||||
virtual void print(std::ostream & out) const = 0;
|
||||
|
||||
template <class P>
|
||||
ErrPos(const P & p)
|
||||
{
|
||||
*this = p;
|
||||
}
|
||||
std::optional<LinesOfCode> getCodeLines() const;
|
||||
};
|
||||
|
||||
std::optional<LinesOfCode> getCodeLines(const ErrPos & errPos);
|
||||
std::ostream & operator << (std::ostream & str, const AbstractPos & pos);
|
||||
|
||||
void printCodeLines(std::ostream & out,
|
||||
const std::string & prefix,
|
||||
const ErrPos & errPos,
|
||||
const AbstractPos & errPos,
|
||||
const LinesOfCode & loc);
|
||||
|
||||
void printAtPos(const ErrPos & pos, std::ostream & out);
|
||||
|
||||
struct Trace {
|
||||
std::optional<ErrPos> pos;
|
||||
std::shared_ptr<AbstractPos> pos;
|
||||
hintformat hint;
|
||||
};
|
||||
|
||||
struct ErrorInfo {
|
||||
Verbosity level;
|
||||
hintformat msg;
|
||||
std::optional<ErrPos> errPos;
|
||||
std::shared_ptr<AbstractPos> errPos;
|
||||
std::list<Trace> traces;
|
||||
|
||||
Suggestions suggestions;
|
||||
|
|
@ -177,12 +153,12 @@ public:
|
|||
const ErrorInfo & info() const { calcWhat(); return err; }
|
||||
|
||||
template<typename... Args>
|
||||
void addTrace(std::optional<ErrPos> e, const std::string & fs, const Args & ... args)
|
||||
void addTrace(std::shared_ptr<AbstractPos> && e, const std::string & fs, const Args & ... args)
|
||||
{
|
||||
addTrace(e, hintfmt(fs, args...));
|
||||
addTrace(std::move(e), hintfmt(fs, args...));
|
||||
}
|
||||
|
||||
void addTrace(std::optional<ErrPos> e, hintformat hint);
|
||||
void addTrace(std::shared_ptr<AbstractPos> && e, hintformat hint);
|
||||
|
||||
bool hasTrace() const { return !err.traces.empty(); }
|
||||
};
|
||||
|
|
|
|||
|
|
@ -131,6 +131,21 @@ Activity::Activity(Logger & logger, Verbosity lvl, ActivityType type,
|
|||
logger.startActivity(id, lvl, type, s, fields, parent);
|
||||
}
|
||||
|
||||
void to_json(nlohmann::json & json, std::shared_ptr<AbstractPos> pos)
|
||||
{
|
||||
if (pos) {
|
||||
json["line"] = pos->line;
|
||||
json["column"] = pos->column;
|
||||
std::ostringstream str;
|
||||
pos->print(str);
|
||||
json["file"] = str.str();
|
||||
} else {
|
||||
json["line"] = nullptr;
|
||||
json["column"] = nullptr;
|
||||
json["file"] = nullptr;
|
||||
}
|
||||
}
|
||||
|
||||
struct JSONLogger : Logger {
|
||||
Logger & prevLogger;
|
||||
|
||||
|
|
@ -177,27 +192,14 @@ struct JSONLogger : Logger {
|
|||
json["level"] = ei.level;
|
||||
json["msg"] = oss.str();
|
||||
json["raw_msg"] = ei.msg.str();
|
||||
|
||||
if (ei.errPos.has_value() && (*ei.errPos)) {
|
||||
json["line"] = ei.errPos->line;
|
||||
json["column"] = ei.errPos->column;
|
||||
json["file"] = ei.errPos->file;
|
||||
} else {
|
||||
json["line"] = nullptr;
|
||||
json["column"] = nullptr;
|
||||
json["file"] = nullptr;
|
||||
}
|
||||
to_json(json, ei.errPos);
|
||||
|
||||
if (loggerSettings.showTrace.get() && !ei.traces.empty()) {
|
||||
nlohmann::json traces = nlohmann::json::array();
|
||||
for (auto iter = ei.traces.rbegin(); iter != ei.traces.rend(); ++iter) {
|
||||
nlohmann::json stackFrame;
|
||||
stackFrame["raw_msg"] = iter->hint.str();
|
||||
if (iter->pos.has_value() && (*iter->pos)) {
|
||||
stackFrame["line"] = iter->pos->line;
|
||||
stackFrame["column"] = iter->pos->column;
|
||||
stackFrame["file"] = iter->pos->file;
|
||||
}
|
||||
to_json(stackFrame, iter->pos);
|
||||
traces.push_back(stackFrame);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -647,7 +647,7 @@ static void upgradeDerivations(Globals & globals,
|
|||
} else newElems.push_back(i);
|
||||
|
||||
} catch (Error & e) {
|
||||
e.addTrace(std::nullopt, "while trying to find an upgrade for '%s'", i.queryName());
|
||||
e.addTrace(nullptr, "while trying to find an upgrade for '%s'", i.queryName());
|
||||
throw;
|
||||
}
|
||||
}
|
||||
|
|
@ -958,7 +958,7 @@ static void queryJSON(Globals & globals, std::vector<DrvInfo> & elems, bool prin
|
|||
} catch (AssertionError & e) {
|
||||
printMsg(lvlTalkative, "skipping derivation named '%1%' which gives an assertion failure", i.queryName());
|
||||
} catch (Error & e) {
|
||||
e.addTrace(std::nullopt, "while querying the derivation named '%1%'", i.queryName());
|
||||
e.addTrace(nullptr, "while querying the derivation named '%1%'", i.queryName());
|
||||
throw;
|
||||
}
|
||||
}
|
||||
|
|
@ -1262,7 +1262,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
|
|||
} catch (AssertionError & e) {
|
||||
printMsg(lvlTalkative, "skipping derivation named '%1%' which gives an assertion failure", i.queryName());
|
||||
} catch (Error & e) {
|
||||
e.addTrace(std::nullopt, "while querying the derivation named '%1%'", i.queryName());
|
||||
e.addTrace(nullptr, "while querying the derivation named '%1%'", i.queryName());
|
||||
throw;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -32,40 +32,40 @@ expect_trace() {
|
|||
|
||||
# failure inside a tryEval
|
||||
expect_trace 'builtins.tryEval (throw "example")' "
|
||||
function-trace entered (string):1:1 at
|
||||
function-trace entered (string):1:19 at
|
||||
function-trace exited (string):1:19 at
|
||||
function-trace exited (string):1:1 at
|
||||
function-trace entered «string»:1:1 at
|
||||
function-trace entered «string»:1:19 at
|
||||
function-trace exited «string»:1:19 at
|
||||
function-trace exited «string»:1:1 at
|
||||
"
|
||||
|
||||
# Missing argument to a formal function
|
||||
expect_trace '({ x }: x) { }' "
|
||||
function-trace entered (string):1:1 at
|
||||
function-trace exited (string):1:1 at
|
||||
function-trace entered «string»:1:1 at
|
||||
function-trace exited «string»:1:1 at
|
||||
"
|
||||
|
||||
# Too many arguments to a formal function
|
||||
expect_trace '({ x }: x) { x = "x"; y = "y"; }' "
|
||||
function-trace entered (string):1:1 at
|
||||
function-trace exited (string):1:1 at
|
||||
function-trace entered «string»:1:1 at
|
||||
function-trace exited «string»:1:1 at
|
||||
"
|
||||
|
||||
# Not enough arguments to a lambda
|
||||
expect_trace '(x: y: x + y) 1' "
|
||||
function-trace entered (string):1:1 at
|
||||
function-trace exited (string):1:1 at
|
||||
function-trace entered «string»:1:1 at
|
||||
function-trace exited «string»:1:1 at
|
||||
"
|
||||
|
||||
# Too many arguments to a lambda
|
||||
expect_trace '(x: x) 1 2' "
|
||||
function-trace entered (string):1:1 at
|
||||
function-trace exited (string):1:1 at
|
||||
function-trace entered «string»:1:1 at
|
||||
function-trace exited «string»:1:1 at
|
||||
"
|
||||
|
||||
# Not a function
|
||||
expect_trace '1 2' "
|
||||
function-trace entered (string):1:1 at
|
||||
function-trace exited (string):1:1 at
|
||||
function-trace entered «string»:1:1 at
|
||||
function-trace exited «string»:1:1 at
|
||||
"
|
||||
|
||||
set -e
|
||||
|
|
|
|||
Loading…
Reference in a new issue