suzanne.soy/racket
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

clarification on common case for id mapping

Browse Source 
svn: r4715
This commit is contained in:
Matthew Flatt 2006-10-30 22:12:24 +00:00
parent 03738d1e40
commit ad506aac3b
1 changed files with 5 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
collects/syntax/doc.txt
View File

@ -416,8 +416,8 @@ _boundmap.ss_: mapping identifiers based on bound-identifier=? and module-identi
The mapping uses `bound-identifier=?' to compare mapping keys, but
also uses a hash table based on symbol equality to make the mapping
efficient in the common case (i.e., where the identifiers print
differently).
efficient in the common case (i.e., where non-equivalent identifiers
are derived from different symbolic names).
> (bound-identifier-mapping? v) - #t if v was produced by
`make-bound-identifier-mapping', #f otherwise.
@ -455,11 +455,9 @@ _boundmap.ss_: mapping identifiers based on bound-identifier=? and module-identi
The mapping uses `module-identifier=?' to compare mapping
keys, but also uses a hash table based on symbol equality
to make the mapping efficient in the common case, i.e.,
where the identifiers print differently. Note that some
identifiers print differently but are module-identifier=?
to each other. This case is handled properly by this
library.
to make the mapping efficient in the common case (i.e., where
non-equivalent identifiers are derived from different symbolic
names at their definition sites).
> (module-identifier-mapping? v) - #t if v was produced by
`make-module-identifier-mapping', #f otherwise.