tree e058cbe207487dede4ade96d1770fbb503742ac6
parent 78ce3d14a0e1d45c4602ce09b6b6c0fa290383bc
author ccalvarin <ccalvarin@google.com> 1503379064 +0200
committer Damien Martin-Guillerez <dmarting@google.com> 1503386129 +0200

Add OptionDefinition layer between the @Option annotation and its fields and the options parser.

Removes any direct reads of the annotation outside of OptionDefinition. This allows for fewer manual checks for the annotation's existence, unifies error wording, and paves the way for potentially generifying the OptionsParser to accept different @Option-equivalent annotations.

Also allows for cleanup of duplicate code by giving @Option-specific operations a clear home, such as sorts and default logic. In followup changes, we can eliminate some unnecessarily complex caching by instead memoizing values in the OptionDefinition. This will have the positive side effect of making sure reads come from the cached values.

RELNOTES: None.
PiperOrigin-RevId: 166019075