| Class | Superclass | Slots |
| value key heap index | ||
| data |
| Word | Stack effect |
| ( entry1 entry2 heap -- ? ) |
| Word | Stack effect |
| ( m heap -- n ) | |
| ( m heap -- ) | |
| ( entry1 entry2 heap -- <=> ) | |
| ( n heap -- ) | |
| ( value key heap -- entry ) | |
| ( class -- heap ) | |
| ( m heap -- n ) | |
| ( m n heap -- ? ) | |
| ( m n heap -- ) | |
| ( heap -- entry ) | |
| ( n heap -- entry ) | |
| ( entry heap -- n ) | |
| ( entry n heap -- ) | |
| ( m heap -- ) | |
| ( m heap -- ? ) | |
| ( n -- m ) | |
| ( m heap -- ? ) | |
| ( n heap -- entry ) | |
| ( n -- m ) | |
| ( m heap -- ? ) | |
| ( n heap -- entry ) | |
| ( n -- m ) | |
| ( n heap -- ) |
| Word | Stack effect |
| ( object -- ? ) | |
| ( object -- ? ) |