Initial public khodo snapshot

src/errors.cpp

@@ -0,0 +1,79 @@
+#include <noto/errors.hpp>
+
+#include <cstdint>
+#include <expected>
+#include <string>
+#include <string_view>
+
+#include <sqlite3.h>
+
+#include <modulus.hpp>
+
+#include <noto/detail/errors.hpp>
+
+namespace {
+
+auto code_from(std::int32_t code) -> std::int32_t {
+  switch (code & 0xff) {
+  case SQLITE_OK:
+  case SQLITE_ROW:
+  case SQLITE_DONE:
+    return 0;
+  case SQLITE_MISUSE:
+  case SQLITE_RANGE:
+    return noto::detail::error_invalid_argument;
+  case SQLITE_NOTFOUND:
+  case SQLITE_EMPTY:
+    return noto::detail::error_not_found;
+  case SQLITE_BUSY:
+  case SQLITE_LOCKED:
+    return noto::detail::error_unavailable;
+  case SQLITE_INTERRUPT:
+    return noto::detail::error_cancelled;
+  case SQLITE_AUTH:
+  case SQLITE_PERM:
+  case SQLITE_READONLY:
+    return noto::detail::error_permission_denied;
+  case SQLITE_CONSTRAINT:
+    return noto::detail::error_constraint_violation;
+  case SQLITE_ERROR:
+    return noto::detail::error_syntax_error;
+  case SQLITE_CORRUPT:
+  case SQLITE_NOTADB:
+    return noto::detail::error_data_loss;
+  case SQLITE_IOERR:
+  case SQLITE_CANTOPEN:
+    return noto::detail::error_unavailable;
+  case SQLITE_NOMEM:
+    return noto::detail::error_resource_exhausted;
+  default:
+    return noto::detail::error_internal;
+  }
+}
+
+auto message_from(std::int32_t code, sqlite3* database, std::string_view operation) -> std::string {
+  auto message = std::string{};
+  if (!operation.empty()) {
+    message += operation;
+    message += ": ";
+  }
+  if (database != nullptr) {
+    message += sqlite3_errmsg(database);
+  } else {
+    message += sqlite3_errstr(code);
+  }
+  return message;
+}
+
+}
+
+auto noto::error_from(std::int32_t code, sqlite3* database, std::string_view operation) -> modulus::error {
+  return noto::detail::make_error(code_from(code), message_from(code, database, operation));
+}
+
+auto noto::result_from(std::int32_t code, sqlite3* database, std::string_view operation) -> std::expected<void, modulus::error> {
+  if (code == SQLITE_OK || code == SQLITE_ROW || code == SQLITE_DONE) {
+    return {};
+  }
+  return noto::detail::fail_void(noto::error_from(code, database, operation));
+}