Revision dabd88c82a970f69a43dd42c2297125860c83b32 authored by Andrew Adams on 07 September 2018, 16:59:08 UTC, committed by Andrew Adams on 07 September 2018, 16:59:08 UTC
Error.cpp
#include "Error.h"
namespace Halide {
namespace {
CompileTimeErrorReporter* custom_error_reporter = nullptr;
} // namespace
void set_custom_compile_time_error_reporter(CompileTimeErrorReporter* error_reporter) {
custom_error_reporter = error_reporter;
}
bool exceptions_enabled() {
#ifdef WITH_EXCEPTIONS
return true;
#else
return false;
#endif
}
Error::Error(const std::string &msg) : std::runtime_error(msg) {
}
CompileError::CompileError(const std::string &msg) : Error(msg) {
}
RuntimeError::RuntimeError(const std::string &msg) : Error(msg) {
}
InternalError::InternalError(const std::string &msg) : Error(msg) {
}
namespace Internal {
// Force the classes to exist, even if exceptions are off
namespace {
CompileError _compile_error("");
RuntimeError _runtime_error("");
InternalError _internal_error("");
} // namespace
ErrorReport::ErrorReport(const char *file, int line, const char *condition_string, int flags) : flags(flags) {
const std::string &source_loc = Introspection::get_source_location();
if (flags & User) {
// Only mention where inside of libHalide the error tripped if we have debug level > 0
debug(1) << "User error triggered at " << file << ":" << line << "\n";
if (condition_string) {
debug(1) << "Condition failed: " << condition_string << "\n";
}
if (flags & Warning) {
msg << "Warning";
} else {
msg << "Error";
}
if (source_loc.empty()) {
msg << ":\n";
} else {
msg << " at " << source_loc << ":\n";
}
} else {
msg << "Internal ";
if (flags & Warning) {
msg << "warning";
} else {
msg << "error";
}
msg << " at " << file << ":" << line;
if (!source_loc.empty()) {
msg << " triggered by user code at " << source_loc << ":\n";
} else {
msg << "\n";
}
if (condition_string) {
msg << "Condition failed: " << condition_string << "\n";
}
}
}
ErrorReport::~ErrorReport()
#if __cplusplus >= 201100 || _MSC_VER >= 1900
noexcept(false)
#endif
{
if (!msg.str().empty() && msg.str().back() != '\n') {
msg << '\n';
}
if (custom_error_reporter != nullptr) {
if (flags & Warning) {
custom_error_reporter->warning(msg.str().c_str());
return;
} else {
custom_error_reporter->error(msg.str().c_str());
// error() should not have returned to us, but just in case
// it does, make sure we don't continue.
abort();
}
}
// TODO: Add an option to error out on warnings too
if (flags & Warning) {
std::cerr << msg.str();
return;
}
#ifdef WITH_EXCEPTIONS
if (std::uncaught_exception()) {
// This should never happen - evaluating one of the arguments
// to the error message would have to throw an
// exception. Nonetheless, in case it does, preserve the
// exception already in flight and suppress this one.
return;
} else if (flags & Runtime) {
RuntimeError err(msg.str());
throw err;
} else if (flags & User) {
CompileError err(msg.str());
throw err;
} else {
InternalError err(msg.str());
throw err;
}
#else
std::cerr << msg.str();
abort();
#endif
}
} // namespace Internal
} // namespace Halide
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