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erUnexpectedEof

erUnexpectedEof = 13

Example​

function IsTruncatedCompiledScript(const ErrorType: TIFException): Boolean;
begin
  Result := ErrorType = erUnexpectedEof;
end;

Usage​

erUnexpectedEof indicates that compiled Velox scripting data ended before a required type, procedure or variable structure was complete.

Formatting and exception state​

ExceptionToString ignores Param and returns Unexpected End Of File. The producer does not save the expected length, current offset or structure name.

Additional Technical Info​

erUnexpectedEof is member ordinal 13 of TIFException, the script-visible declaration that is kept in exact ordinal alignment with PascalScript's runtime TPSError. Its sidebar position 41 is alphabetical navigation metadata and is not its enumeration value.

erUnexpectedEof is emitted repeatedly by LoadData when the compiled bytecode container ends while the runtime is reading a type record, class/procedure metadata, set/array/record detail, procedure body/export information, variable record or attribute payload. It concerns PascalScript's compiled binary container. It does not describe reaching the end of a source text file, CSV/EDI document, dataset, stream consumed by user code or network response.

Behavior, recovery and quirks​

  • Some malformed lengths are classified as ErOutOfRange, erInvalidType or erInvalidHeader instead. The loader taxonomy is based on the check that failed, not a complete corruption diagnosis.
  • Loading returns False and clears partially constructed runtime tables; do not execute or reuse the incomplete artifact.
  • Recompile or restore the artifact from a trusted source. Repeatedly reading the same truncated data cannot succeed.
  • Exception transfer is not a database, dataset, filesystem or external-system transaction. Any earlier side effect remains unless the called API or surrounding Flow provides an explicit rollback contract.
  • Do not persist the numeric ordinal as an integration contract. Store the member name, formatted message, parameter and relevant procedure/position with the Velox version.

Related Code Library entries

External references

Created 2026-07-15