Estimated hours taken: 10
Branches: main
Implement a committed choice version of 234-trees which uses
compare_representation instead of builtin compare. Use this to implement
the declarative debugger's oracle knowledge base, instead of the standard
library map. We do this because the keys used by the oracle may contain
non-canonical terms, which would cause a runtime abort if used as map
keys.
This completes the changes to the declarative debugger to support the
debugging of higher order code. (There is still a problem in that the
declarative debugger back end does not filter out external events for
higher order calls. This means that the declarative debugger asks
questions about what are effectively calls to call/N, which is not
necessary since we assume that call/N is correct. This is a problem
unrelated to this change, so I will deal with it separately.)
browser/tree234_cc.m:
The new sub-module of mdb, which implements the 234-trees.
browser/declarative_oracle.m:
Use the new module instead of library/map.m. Propagate the
effect of the calls to committed choice code.
browser/mdb.m:
Include the new module.
tests/debugger/declarative/Mmakefile:
Enable two old test cases, higher_order and ite_2, that now work
after this change. Add a new test case that tests closures
with some arguments applied.
tests/debugger/declarative/higher_order.exp:
tests/debugger/declarative/higher_order.inp:
tests/debugger/declarative/ite_2.exp:
tests/debugger/declarative/ite_2.inp:
Provide input and expected output for these tests.
tests/debugger/declarative/ho2.exp:
tests/debugger/declarative/ho2.inp:
tests/debugger/declarative/ho2.m:
New test case.
