862 lines
23 KiB
Plaintext
862 lines
23 KiB
Plaintext
[Aug 12 2009]
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* CHR: no debugging instrumentation for optimized code
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[Jun 27 2008]
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* CHR: ADDED error value for check_guard_bindings option:
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throw error on guard binding
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* CHR: ADDED error value for check_guard_bindings option:
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throw error on guard binding
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[May 22 2008]
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* CHR: experimental detach code size reduction (bug fix)
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[May 21 2008]
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* CHR: reduce code size of attach and detach predicates (experimental)
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[May 20 2008]
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* CHR: chr_enum/1 (bug fix) and chr_enum/2 (with handler)
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[May 18 2008]
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* CHR: reinstate chr_enum/1
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[May 14 2008]
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* CHR: suppress printing of put_attr/3 at toplevel
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[Apr 18 2008]
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* MODIFIED: Renamed hash_term/2 to term_hash/2. Added hash_term/2 to
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library(backcomp), so most code should not notice this.
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[Feb 27 2008]
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* ENHANCED: CHR performance of find_chr_constraint when called with nonvar argument
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[Feb 14 2008]
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* ENHANCED: CHR performance (minor issues)
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[Feb 13 2008]
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* FIX: CHR new C file for Windows
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* FIX: CHR: single chr_support.c C file
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[Feb 12 2008]
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* ENHANCED: CHR: moved performance critical predicates to C
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[Feb 11 2008]
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* ENHANCED: CHR user-provided background knowledge (Jon Sneyers)
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[Feb 10 2008]
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* ENHANCED: CHR compiler performance
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* ENHANCED: CHR compiler performance
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[Jan 29 2008]
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* EHANCED: CHR performance: compacted indexing code
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[Jan 28 2008]
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* ADDED: CHR: chr_constants/1 built-in type for enumerated constants
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[Jan 27 2008]
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* ENHANCED: CHR: performance improvements (success continuation, Prolog code optimization)
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* COMPAT: Removed min_list/2 from library(hprolog) as this is now in library lists.
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Jan 24, 2008
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* TS: Exploit success continuation information.
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Jan 23, 2008
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* TS: Bug fix in continuation optimization.
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* TS: Fixed singleton variable.
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* TS: Suppress debug message.
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Jan 22, 2008
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* TS: Rewrite Prolog code: common prefix elimination in
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successive clauses of the same predicate.
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* TS: Tries stores enabled by default again.
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* TS: Success and failure continuation optimization for
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propagation occurrences.
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Jan 14, 2008
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* TS: Fix performance bug in locking of guard variables.
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* TS: Fix performance bug in spurious hash_term call.
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Jan 10, 2008
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* TS: Type check constraint declarations.
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* TS: Trie stores hidden behind `experimental' option.
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* TS: New option `verbose' prints constraint indices.
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* TS: Don't compute term_hash for int and natural types.
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Jan 9, 2008
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* TS: Avoid trivial warning for declare_stored_constraints.
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* TS: Bug fix: missing full store was causing compiler to loop.
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Jan 9, 2008
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* TS: Bug fix: atomic_constants store was causing compiler
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to loop.
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* TS: Clean-up and avoid adding additional global_ground store
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if atomic_constants store covers all cases.
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* TS: Clean-up and bug fix.
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Jan 7, 2008
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* TS: Performance improvement: use new store
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implementation for multi-argument lookups
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on manifest ground terms. Should be faster than
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hashtable.
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Jan 4, 2008
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* TS: Performance improvement: use new store
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implementation for single-argument lookups
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on manifest atomics. Should be faster than
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hashtable. Will be generalized to arbitrary
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manifest ground lookups and non-manifest
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atomically typed lookups .
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Jan 3, 2008
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* TS: Modified error messages of declare_stored_constraints
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option, to distinguish between stored, temporarily stored
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and never stored.
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* TS: write/1, writeln/1 and format/2 are now treated as non-binding
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builtins.
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* TS: Properly inline inthash constraint lookup.
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Dec 31, 2007
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* TS: Additional assertion # default(Goal) for the
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declare_stored_constraints, which specifies that
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an unconditional simplification rule for the constraint
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must be added to the end of the program. The Goal
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parameter specifies the goal of that rule, e.g.
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true or fail or throw(...). Experimental.
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Dec 29, 2007
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* TS: Experimental option declare_stored_constraints for
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telling the compiler to warn for stored constraints
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that are not asserted to be stored. Use the
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:- chr_constraint f(...) # stored.
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notation for asserting that a constraint is expected to
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be stored.
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Dec 27, 2007
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* TS: Inline constraint lookup.
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* TS: Precompile term hashing.
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Sep 26, 2007
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* TS: Code cleaning was hampered by line numbers.
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Reported by Mike Elston.
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May 2, 2007
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* PVW: Bug fix in observation analysis.
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* PVW: Consistency checks of experimental history pragma.
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Apr 5, 2007
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* TS: Lessened worst bottlenecks in CHR compiler,
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in the guard simplification phase.
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Mar 26, 2007
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* TS: Experimental dynattr option, for dynamic size attribute terms.
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Mar 16, 2007
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* TS: Extended observation analysis (abstract interpretation)
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to deal with disjunctions. With Paolo Tacchella.
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Mar 14, 2007
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* TS: Renamed hprolog:substitute/4 to substitute_eq/4, because of
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name conflict with library(edit).
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Mar 12, 2007
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* TS: Use line numbers in error and warning messages.
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Mar 8, 2007
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* TS: Added maintenance of line numbers through CHR compilation
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as an option: chr_option(line_numbers,on).
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Mar 5, 2007
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* TS: Bug fix: setarg/3 instantiation error reported by Mike Elston.
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Caused by missing suspension argument in debug off, optimize off
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mode.
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Feb 22, 2007
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* LDK: O(1) removal from hashtables, with experimental
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chr_option(ht_removal,on).
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Jan 25, 2007
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* PVW: Bugfixes for optional use of CHR constraints in rule guards.
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Jan 18, 2007
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* PVW: Optional use of CHR constraints in rule guards.
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Nov 20, 2006
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* TS: Bug fix in compiler_errors.pl.
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Oct 25, 2006
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* TS: Bug fix in occurrence subsumption by Jon Sneyers.
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Oct 18, 2006
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* TS: New preprocessor feature.
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* TS: Parametrization of experimental chr_identifier type.
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Oct 16, 2006
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* TS: More inlining.
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* TS: Stronger static type checking.
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* TS: Omitted buggy FD analysis from bootstrapping process.
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Oct 12, 2006
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* TS: More inlining.
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* TS: Experimental chr_identifier type.
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Oct 10, 2006
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* TS: Allow for empty type definitions aka phantom types. These are
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useful for some type-level tricks. A warning is issued so the
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user can check whether a phantom type is intended. No other
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phantom type-specific checks are in place yet.
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* TS: Fixed static type checking of built-in types.
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Oct 9, 2006
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* TS: The dense_int type can now appear on the rhs of type alias
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definitions.
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Oct 3, 2006
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* TS: Fixed bug concerning matchings between ground and possibly
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non-ground arguments.
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Oct 2, 2006
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* TS: Fixed a bug in code generation, overeager removal of a clause.
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Sep 28, 2006
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* TS: Refactored some code.
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Sep 22, 2006
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* TS: Add exception handler to initialize chr_leash in new threads.
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Sep 18. 2006
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* TS: Bug fix for programs in debugging mode.
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Aug 30, 2006
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* JW: Fixed make clean
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* JW: Enlarged stacks to make build succeed
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Aug 24, 2006
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* JW: Add target ln-install
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Aug 21, 2006
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* TS: Fixed wrong arities in not inlined predicates. Mike Elston.
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Aug 18, 2006
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* TS: Code clean-up, more inlining, only generate used imports.
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Aug 17, 2006
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* TS: Inlining and more specialization of auxiliary predicates.
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Aug 10, 2006
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* TS: Fixed bug for constraints without rules in debug mode.
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* TS: Compiler clean-up
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* TS: Experimental var_assoc_store.
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Aug 9, 2006
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* TS: Various minor code generation improvements, including smaller
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suspension terms.
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Aug 8, 2006
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* TS: Absolutely no lock checking when check_guard_bindings is disabled.
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Aug 4, 2006
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* TS: Minor optimizations for (-) arguments.
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* TS: Important optimization for awakening fewer suspended constraints
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Aug 3, 2006
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* TS: Fixed typo in static type checker.
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* TS: Documented static and dynamic type checking.
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Aug 2, 2006
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* TS: Fixed bug (type alias related) in static type checker. Mike Elston.
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* TS: Added static type checking on variable matching in rule heads.
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* TS: Added static type checking on CHR constraints in rule bodies.
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Aug 1, 2006
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* TS: New (limited) compile time type checking of rule heads.
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Jul 28, 2006
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* TS: New experimental robustness feature in debug mode:
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runtime type checking of CHR constraints.
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Jul 5, 2006
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* TS: Minor bug fixes.
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Jun 22, 2006
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* TS: Improved performance of ai_observation_analysis,
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mainly via additional tabling and passive declarations.
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Jun 8, 2006
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* TS: Disabled some code only intended for SICStus.
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* TS: Fixed bug in removal of constraints. Spotted by Leslie De Koninck.
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Jun 7, 2006
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* TS: Next fix to tracer. Cconstraints in propagation
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rules are shown in textual order.
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Jun 2, 2006
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* TS: Next few fixes to tracer. Constraints in simpagation rules
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are now shown on the right side of the backslash.
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Jun 1, 2006
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* TS: Synchronization with SICStus version of K.U.Leuven CHR.
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* TS: First few fixes to tracer. Cconstraints in simplification
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rules are shown in textual order. Constraint insertions
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are always shown.
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May 17, 2006
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* TS: Termination bug fixed in guard_entailment.
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* TS: Runtime library predicate run_suspensions is now specialized
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per constraint, avoiding requirement of fixed suspension layout.
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* TS: Further update to suspension term layout. Only constraints for
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which the propagation history is used get a history field.
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May 9, 2006
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* TS: Ignore propagation rules with trivial body 'true'.
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Apr 24, 2006
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* TS: Guard entailment now first simplifies the formula it processes,
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in order to reduce the number of disjunctions, to obtain a smaller
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search tree.
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Apr 22, 2006
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* TS: Bug fix by Jon Sneyers: type aliases now support built-in types.
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Spotted by Mike Elston.
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* TS: Small refactorings based on Ciao port experience.
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* TS: Removed -singleton stylecheck option now that portray_clause
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prints singleton variables as _.
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Apr 19, 2006
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* JW: Make library(chr) load its private stuff silent.
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Apr 14, 2006
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* TS: Bug fix: too many guards were locked.
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Apr 11, 2006
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* TS: Most runtime library predicates are now specialized
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per constraint, avoiding generic =.. and lists code.
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Mayor update to suspension term layout. Layout may now
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differ from one constraint to the other. Some unused suspension
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fields (continuation goal and generation number) are omitted.
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Further analysis can remove more fields.
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Default store constraints now each have
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their own global variable: a list of all the suspensions.
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Removal from this list is now O(1) thanks to setarg/1 and
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back pointers in the suspension terms. This can cause time
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time complexity improvements in solvers that always have
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variable indexing on their constraints.
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Ground, non-indexed constraints are now removed from
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their global list store in O(1), as for the default store.
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Minor bug fixes in a number of places.
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Mar 16, 2006
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* TS: Fixed subtle bug in ai_observation analysis,
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that caused goal sequences to only generate
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the optimistic default answer pattern, leading
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to invalid 'not observed' conclusions.
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* TS: Variable indexing/suspension analysis now ignores functor/3
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in guards. Could be extended to other built-ins
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that cause an error when arguments are not
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properly instantiated.
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Mar 11, 2006
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* TS: Renamed global variable id to chr_id in chr_runtime.pl.
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Mar 9, 2006
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* JS: Synchronization with experimental version:
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- minor optimizations, e.g. efficient lookups with statically known
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instantiated data
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- new alternative syntax for passive declarations
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- new dense_int built-in type + underlying store
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- new type alias definitions, like in Mercury
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Mar 4, 2006
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* BD: small changes in chr_compiler_options.pl and chr_translate.chr
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affecting only the SICStus port
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Mar 3, 2006
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* BD: lots of changes related to porting to SICStus
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* TS: Now exception/3 hook is only used in SWI-Prolog
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Mar 2, 2006
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* TS: Use exception/3 hook to catch undefined
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global variables of chr_runtime.pl and CHR modules,
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for multi-threaded programs and saved states.
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Feb 9, 2006
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* JW: Fix "make check" path issues.
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* TS: Removed all is_chr_file tests when loading file.
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Feb 8, 2006
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* BD: chr_swi.pl: option(optimize --> :- chr_option(optimize
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* TS: Removed obsolete experimental optimization option.
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* TS: Correctly report variable pragmas!
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* TS: No constraints declared is no longer a special case.
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Jan 19, 2006
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* BD: chr_swi.pl - use_module(hprolog added for SICStus port
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* TS: Removed operator declaration for '::'. No longer used.
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Dec 23, 2005
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* TS: Removed chr_constraints declaration again, in favor
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of only the chr_constraint declaration and modified
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documentation accordingly.
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* TS: Modified documentation based on recommendations of Bart Demoen.
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* TS: Added chr_info/3 predicate to chr_compiler_errors, as suggested by
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Jon Sneyers. Now print banner on calling compiler.
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Dec 13, 2005
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* TS: warnings are now written to user_error stream.
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Dec 12, 2005
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* TS: option and constraints declarations are now deprecated. They
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are replaced by chr_option and chr_constraint(s).
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* TR: Made an interface for warnings and errors. Errors now implemented
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with exceptions.
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* TR: Revised documentation.
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Dec 2, 2005
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* BD: chr_translate.chr, chr_translate_bootstrap2.chr
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mutables "abstracted"
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* BD: chr_translate_bootstrap1.chr
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atomic_concat - some duplicate code of it is in more than one file :-(
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create_get_mutable definitions if-deffed
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verbosity_on/0 for porting
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hprolog.pl
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definitions of init_store/2, get_store/2, update_store/2
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and of make_init_store_goal/make_get_store_goal/make_update_store_goal
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removed prolog_flag/3 (seemed nowhere used)
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chr_translate_bootstrap2.chr
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make_init_store_goal/make_get_store_goal/make_update_store_goal introduced
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verbosity_on/0 for porting
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chr_translate_bootstrap.pl
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atom_concat -> atomic_concat
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verbosity_on/0 for porting
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conditional import van library(terms)
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chr_translate.chr
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make_init_store_goal etc. introduced
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create_get_mutable_ref wherever needed (chr_translate*)
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Nov 30, 2005
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* BD: chr_runtime.pl:
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chr_init for SICStus
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included contents of chr_debug.pl
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removed show_store/1
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create_mutable changed into 'chr create_mutable'
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got rid of explicit inlining and did it by goal expansion
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inlining also of 'chr default_store'
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* BD: chr_swi.pl:
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removed :- use_module(chr(chr_debug))
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module header: version for SICStus
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* BD: chr_debug.pl: emptied
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* BD: chr_translate.chr:
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system specific declarations factored out in insert_declarations
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changed two atom_concat/3 into atomic_concat/3 (because arg 2 was sometimes an int)
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* BD: chr_compiler_utility.pl:
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put atomic_concat/3 there
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adapted atom_concat_list/2 to use it
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* BD: chr_swi_bootstrap.pl:
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introduced chr_swi_bootstrap/2 for ease of porting
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exported also chr_compile/3
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porting code for get_time stuff/read_term/absolute_file_name
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* BD: builtins.pl, a_star.pl, clean_code.pl:
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some ifdefs
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Nov 29, 2005
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* BD: hprolog.pl: removed strip_attributes/2 and restore_attributes/2
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Nov 29, 2005
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* BD: chr_swi.pl: Removed code that took Handler for Module (in chr_expand(end_of_file)
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Added :- chr_option(_,_) with same meaning as option(_,_)
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is_chr_file: .chr is no longer a recognised suffix
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added use_module(library(lists))
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changed calls to source_location/2 into prolog_load_context/2
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* BD: chr_translate.chr: chr_translate/2: added end_of_file to translated program
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adapted SICStus compatibility message
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made :- chr_option(_,_) available
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changed precedence of + - ? to 980 (these ops are
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probably not local enough to the module)
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Nov 21, 2005
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* TS: Further synchronization with hProlog.
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Nov 18, 2005
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* TS: Removed dead code in guard_entailment.chr
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* TS: Fixed performance bug: now lookup is indexed
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on maximal number of arguments.
|
|
* TS: Removed some redundant intermediate predicates
|
|
in chr_runtime.pl.
|
|
* TS: It is now possible to disable the printing
|
|
of the CHR constraint store per module,
|
|
through the option toplevel_show_store on/off
|
|
* TS: Synchronized with hProlog
|
|
* TS: bug fix in functional dependency analysis
|
|
|
|
Nov 17, 2005
|
|
|
|
* TS: Removed two dead predicates in chr_translate.chr
|
|
and hooked up the late_storage_analysis
|
|
that was being bypassed.
|
|
* TS: Renamed global_term_ref_1 to default_store.
|
|
* TS: Removed redundant predicate values_ht.
|
|
* TS: Compiler no longer generates dead code for never stored constraints,
|
|
i.e. attach/detach predicates.
|
|
This reduces the generated .pl by about 700 lines.
|
|
|
|
Nov 10, 2005
|
|
|
|
* TS: Two more bug fixes for constraints without
|
|
active occurrences that trigger.
|
|
|
|
Nov 4, 2005
|
|
|
|
* TS: Small optimization of code for constraints
|
|
without any active occurrence.
|
|
* TS: Fixed bug caused by previous bug fix:
|
|
added only_ground_indexed_arguments/1 test
|
|
to separate out that meaning from may_trigger/1.
|
|
|
|
Nov 3, 2005
|
|
|
|
* TS: Removed strip_attributes code.
|
|
* TS: Fixed bug that causes new constraints to be added on triggering.
|
|
|
|
Oct 25, 2005
|
|
|
|
* TS: Two minor bug fixes.
|
|
|
|
Oct 19, 2005
|
|
|
|
* TS: Fixed bug due to overly aggressive inlining of get_mutable_value.
|
|
|
|
Oct 18, 2005
|
|
|
|
* JS: Compiled code is broken, if debug is off and optimize too.
|
|
Debug off now entails optimize on.
|
|
|
|
* TS: Some fixes of the documentation. Thanks to Bart Demoen
|
|
and Thom Fruehwirth.
|
|
|
|
Sep 2, 2005
|
|
|
|
* TS: Synchronized with hProlog.
|
|
|
|
Aug 31, 2005
|
|
|
|
* TS: Added missing operator declarations for prefix (?).
|
|
|
|
Aug 9, 2005
|
|
|
|
* JW: import lists into chr_compiler_utility.pl
|
|
|
|
* JW: make message hook for query(yes) detect CHR global variables.
|
|
|
|
* JW: Exported pairlist_delete_eq/3 from pairlist and use this in
|
|
chr_hashtable_store.pl
|
|
|
|
Aug 4, 2005
|
|
|
|
* TS: Renamed pairlist:delete/3 to pairlist:pairlist_delete/3.
|
|
Mike Elston.
|
|
Aug 1, 2005
|
|
|
|
* TS: Extended more efficient ground matching code to
|
|
removed simpagation occurrence code.
|
|
|
|
Jul 28, 2005
|
|
|
|
* TS: New input verification: duplicate constraint declaration
|
|
now reported as an error. Requested by Mike Elston.
|
|
* TS: More efficient matching code for ground constraints
|
|
when matching an argument of a partner constraint with
|
|
a ground term
|
|
* JS: Bug fix in guard simplification.
|
|
|
|
Jul 3, 2005
|
|
|
|
* TS: Factored out option functionality into separate module.
|
|
* TS: Factored out utility code into separate module.
|
|
|
|
Jun 29, 2005
|
|
|
|
* TS: Changed chr_show_store/1 to use print/1 instead of write/1.
|
|
|
|
Jun 28, 2005
|
|
|
|
* TS: Removed spurious and conflicting operator definitions
|
|
for +, - and ? as mode declarations.
|
|
|
|
Jun 27, 2005
|
|
|
|
* TS: Added find_chr_constraint/1 functionality.
|
|
|
|
Jun 8, 2005
|
|
|
|
* TS: Improved compiler scalability: use nb_setval/2 to
|
|
remember compiled code through backtracking over
|
|
compilation process instead of assert/1.
|
|
* TS: Removed spurious comma from file.
|
|
|
|
Jun 1, 2005
|
|
|
|
* TS: Added option to disable toplevel constraint store printing.
|
|
* TS: Slightly improved hash table constraint store implementation.
|
|
|
|
Apr 16, 2005
|
|
|
|
* JW: Added patch from Jon Sneyers.
|
|
|
|
Mar 11, 2005
|
|
|
|
* TS: Improved head reordering heuristic.
|
|
* TS: Added support primitive for alternate built-in solver dependency.
|
|
|
|
Mar 4, 2005
|
|
|
|
* TS: Fixed bug that causes wrong output in chr_show_store.
|
|
|
|
Feb 25, 2005
|
|
|
|
* TS: Fixed several bugs in generation of debugable code.
|
|
|
|
Feb 19, 2005
|
|
|
|
* JW: Cleanup integration in SWI-Prolog environment:
|
|
- Extended SWI-Prolog library ordsets. Renamed ord_delete/3 to
|
|
ord_del_element/3 and ord_difference/3 to ord_subtract/3 for
|
|
better compatibility.
|
|
- Renamed module find to chr_find to avoid name conflict and declared
|
|
preds as meta-predicate.
|
|
- Re-inserted and exported strip_attributes/2 and
|
|
restore_attributes/2 in hprolog.pl. Deleted hprolog: from
|
|
chr_translate.chr.
|
|
- Added dummy option declarations to bootstrap compiler.
|
|
- Fixed path problems in makefile (-p chr=.) and install new
|
|
components.
|
|
- Fixed typo 'chr show_store' --> chr_show_store.
|
|
|
|
Feb 17, 2005
|
|
|
|
* JS: Added guard entailment optimizations and
|
|
new syntax for type and mode declarations.
|
|
|
|
Dec 15, 2004
|
|
|
|
* TS: Use prolog:message/3 hook to automatically print
|
|
contents of CHR constraint stores with query bindings
|
|
on toplevel.
|
|
|
|
Dec 3, 2004
|
|
|
|
* TS: Bugfix in code generation. Reported by Lyosha Ilyukhin.
|
|
|
|
Jul 28, 2004
|
|
|
|
* TS: Updated hashtable stores. They now start small and expand.
|
|
|
|
Jul 19, 2004
|
|
|
|
* JW: Removed chr_pp: module prefixes
|
|
* JW: Updated Windows makefile.mak (more similar organisation, added check)
|
|
|
|
Jul 17, 2004
|
|
|
|
* TS: Added chr_hashtable_store library.
|
|
* TS: Added find library.
|
|
* TS: Added builtins library.
|
|
* TS: Added clean_code library.
|
|
* TS: Added binomial_heap library.
|
|
* TS: Added a_star library.
|
|
* TS: Added new intermediate bootstrapping step
|
|
* TS: Synchronized CHR compiler with most recent development version
|
|
|
|
Summary of changes:
|
|
|
|
"The new version of the compiler contains several new optimizations, both
|
|
fully automatic, such as the antimonotny-based delay avoidance (see
|
|
http://www.cs.kuleuven.be/publicaties/rapporten/cw/CW385.abs.html for
|
|
the technical report), and enabled by mode declarations (see CHR
|
|
documentation), such as hashtable-based constraint indexes."
|
|
|
|
Apr 9, 2004
|
|
|
|
* JW: Added chr_messages.pl. Make all debug messages use the print_message/2
|
|
interface to enable future embedding.
|
|
|
|
Apr 7, 2004
|
|
|
|
* JW: Added chr:debug_interact/3 hook. Defined in chr_swi.pl to void
|
|
showing constraints first as goal and then as CHR call.
|
|
* JW: Added chr:debug_event/2 hook. Defined in chr_swi.pl to make the
|
|
CHR debugger honour a skip command from the Prolog tracer.
|
|
|
|
Apr 6, 2004
|
|
|
|
* JW: Added b (break) to the CHR debugger.
|
|
* TS: added chr_expandable/2 clause for pragma/2
|
|
|
|
Apr 5, 2004
|
|
|
|
* JW: fixed reference to format_rule/2.
|
|
* JW: Use select/3 rather than delete/3 in diff/2 in Tests/zebra.pl
|
|
* TS: CHR translation now leaves CHR store empty
|
|
|
|
Apr 4, 2004
|
|
|
|
* JW: added :- use_module(library(chr)) to all examples.
|
|
* JW: mapped -O --> option(optimize, full).
|
|
* JW: introduced file-search-path `chr' for clarity and to enable running
|
|
make check from the local environment instead of the public installation.
|
|
* JW: mapped prolog flag generate_debug_info --> option(debug, on)
|
|
* JW: Replaced the chr -> pl step with term_expansion/2.
|
|
* JW: Moved insert_declarations/2 to chr_swi.pl
|
|
|
|
Apr 2, 2004
|
|
|
|
* JW: fixed Undefined procedure: chr_runtime:run_suspensions_loop_d/1
|
|
* TS: Added <space> for creep and shortened debug line prefix to CHR:
|
|
|
|
Mar 29, 2004
|
|
|
|
* JW: Use \+ \+ in chr_compile/3 to undo changes to the constraint
|
|
pool. Regression test suite using "make check" works again.
|
|
|
|
Mar 25, 2004
|
|
|
|
* TS: Added skip and ancestor debug commands
|
|
|
|
Mar 24, 2004
|
|
G
|
|
* TS: Added bootstrapping process for CHR compiler using CHR.
|
|
* TS: CHR compiler now uses CHR.
|
|
* TS: Fixed bug in compilation of multi-headed simpagation rules.
|
|
* TS: Cleaned up compiler.
|
|
* TS: Added analysis + optimization for never attached constraints.
|
|
* TS: Exploit uniqueness (functional dependency) results to detect
|
|
set semantics type simpagation rules where one rule can be passive
|
|
* TS: Compiler generates 'chr debug_event'/1 calls
|
|
* TS: Rudimentary support for debugging.
|
|
option(debug,on) causes a trace of CHR events to be printed
|
|
|
|
Mar 15, 2004
|
|
|
|
* JW: Fix operator handling.
|
|
|
|
Mar 3, 2004
|
|
|
|
* JW: Integrated new version from Tom Schrijvers.
|