Added option to list the names used by each KEEP or BYPASS module
and indicate how used (as reference, in syntax template, etc).
Improved BYPASS; it now gives a list of suggested replacements
(and, optionally, what dependencies each replacement satisfies).
Incompatibly changed exports of macro-debugger/analysis/check-requires;
the new analysis result type is too complicated (and volatile, still)
to document for 0 other clients; focus on the script/output instead.
Removed check-requires-script.rkt.
Updated module whitelist.
Fixed syntax-local-value when identifier later used in def ctx
(destroyed binding information). This manifested as missed references
to modules that does define-local-member-name.
Fixed identifiers without syntax-source-module such as intro'd by
unit-from-context. This manifested as missed references to modules
that provided bindings used by unit-from-context forms.
Changed backtracking algorithm, runtime representations
- syntax classes, ~describe no longer implicitly commit
- ~describe no longer delimits effect of cut
Added keyword & optional args for stxclasses
Added ~do and #:do, ~post, ~commit and #:commit,
~delimit-cut and #:no-delimit-cut
Added syntax/parse/debug, syntax/parse/experimental/*
- expr/c for contracting macro sub-expressions
moved from syntax/parse to syntax/parse/experimental/contract
- syntax class reflection (~reflect, ~splicing-reflect)
- eh-alternative-sets (~eh-var)
- provide-syntax-class/contract
(only for params, not attrs so far)
Changed ~fail to not include POST progress (#:fail still does)
old (~fail _) is now (~post (~fail _))
Made msg argument of ~fail optional
Removed generic "repetition constraint violated" msg
Removed atom-in-list stxclass
Removed unnecessary datum->syntax on cdr of pair pattern
massive improvements to long-list microbenchmarks
Optimization: integrable syntax classes (id, expr, keyword)
need better measurements
Optimization: ad hoc elimination of head/tail choice point
for (EH ... . ()) patterns
Added unstable/wrapc (proc version of expr/c)
