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#include "logging.hh"
#include "nixexpr.hh"
#include <iostream>
#include <optional>
using namespace nix;
MakeError(DemoError, Error);
int main()
{
makeDefaultLogger();
verbosity = lvlVomit;
// In each program where errors occur, this has to be set.
ErrorInfo::programName = std::optional("error-demo");
try {
throw DemoError("demo error was thrown");
} catch (Error &e) {
logger->logEI(e.info());
}
// ErrorInfo constructor
try {
auto e = Error("generic error");
throw DemoError(e.info());
} catch (Error &e) {
logger->logEI(e.info());
}
// For completeness sake, info through vomit levels.
// But this is maybe a heavy format for those.
logger->logEI(
ErrorInfo { .level = lvlInfo,
.name = "Info name",
.description = "Info description",
});
logger->logEI(
ErrorInfo { .level = lvlTalkative,
.name = "Talkative name",
.description = "Talkative description",
});
logger->logEI(
ErrorInfo { .level = lvlChatty,
.name = "Chatty name",
.description = "Chatty description",
});
logger->logEI(
ErrorInfo { .level = lvlDebug,
.name = "Debug name",
.description = "Debug description",
});
logger->logEI(
ErrorInfo { .level = lvlVomit,
.name = "Vomit name",
.description = "Vomit description",
});
// Error in a program; no hint and no nix code.
logError(
ErrorInfo { .name = "name",
.description = "error description",
});
// Warning with name, description, and hint.
// The hintfmt function makes all the substituted text yellow.
logWarning(
ErrorInfo { .name = "name",
.description = "error description",
.hint = hintfmt("there was a %1%", "warning"),
});
// Warning with nix file, line number, column, and the lines of
// code where a warning occurred.
SymbolTable testTable;
auto problem_file = testTable.create("myfile.nix");
logWarning(
ErrorInfo { .name = "warning name",
.description = "warning description",
.hint = hintfmt("this hint has %1% templated %2%!!",
"yellow",
"values"),
.nixCode = NixCode {
.errPos = Pos(problem_file, 40, 13),
.prevLineOfCode = std::nullopt,
.errLineOfCode = "this is the problem line of code",
.nextLineOfCode = std::nullopt
}});
// Error with previous and next lines of code.
logError(
ErrorInfo { .name = "error name",
.description = "error description",
.hint = hintfmt("this hint has %1% templated %2%!!",
"yellow",
"values"),
.nixCode = NixCode {
.errPos = Pos(problem_file, 40, 13),
.prevLineOfCode = std::optional("previous line of code"),
.errLineOfCode = "this is the problem line of code",
.nextLineOfCode = std::optional("next line of code"),
}});
return 0;
}
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