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fe15364988
Reimplement record-type descriptors as vtables for record structs, saving us what was an expensive inspection of a record's vtable layout string to determine its type. * module/rnrs/records/inspection.scm (record-field-mutable?): Check mutability using the bit field stored in the record-type descriptor instead of the record struct's vtable. * module/rnrs/records/procedural.scm (record-internal?): Reimplement as a delegation to a check of the passed struct's vtable against `record-type-descriptor?'. (record-type-vtable): Modify to include base vtable layout as a prefix of the record-type-descriptor layout so that all record-type instances are now also vtables. (make-record-type-descriptor): Remove field vtable; build up a mutability bit field to use for fast mutability checks. (record-accessor, record-mutator): Use field struct and mutability bit field. |
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| .. | ||
| arithmetic | ||
| io | ||
| records | ||
| base.scm | ||
| bytevectors.scm | ||
| conditions.scm | ||
| control.scm | ||
| enums.scm | ||
| eval.scm | ||
| exceptions.scm | ||
| files.scm | ||
| hashtables.scm | ||
| lists.scm | ||
| mutable-pairs.scm | ||
| mutable-strings.scm | ||
| programs.scm | ||
| r5rs.scm | ||
| sorting.scm | ||
| syntax-case.scm | ||
| unicode.scm | ||