diff options
| -rw-r--r-- | lib/spack/spack/solver/asp.py | 71 |
1 files changed, 1 insertions, 70 deletions
diff --git a/lib/spack/spack/solver/asp.py b/lib/spack/spack/solver/asp.py index db93b57eb7..9e4eb54930 100644 --- a/lib/spack/spack/solver/asp.py +++ b/lib/spack/spack/solver/asp.py @@ -40,10 +40,6 @@ import spack.variant from spack.version import ver -#: max line length for ASP programs in characters -_max_line = 80 - - class Timer(object): """Simple timer for timing phases of a solve""" def __init__(self): @@ -137,26 +133,6 @@ class AspFunction(AspObject): return str(self) -class AspAnd(AspObject): - def __init__(self, *args): - args = listify(args) - self.args = args - - def __str__(self): - s = ", ".join(str(arg) for arg in self.args) - return s - - -class AspOneOf(AspObject): - def __init__(self, *args): - args = listify(args) - self.args = args - - def __str__(self): - body = "; ".join(str(arg) for arg in self.args) - return "1 { %s } 1" % body - - class AspFunctionBuilder(object): def __getattr__(self, name): return AspFunction(name) @@ -232,9 +208,7 @@ def _normalize(body): """Accept an AspAnd object or a single Symbol and return a list of symbols. """ - if isinstance(body, AspAnd): - args = [getattr(f, 'symbol', lambda: f)() for f in body.args] - elif isinstance(body, clingo.Symbol): + if isinstance(body, clingo.Symbol): args = [body] elif hasattr(body, 'symbol'): args = [body.symbol()] @@ -298,24 +272,6 @@ class PyclingoDriver(object): def newline(self): self.out.write('\n') - def one_of(self, *args): - return AspOneOf(*args) - - def _and(self, *args): - return AspAnd(*args) - - def _register_rule_for_cores(self, rule_str): - # rule atoms need to be choices before we can assume them - if self.cores: - rule_sym = clingo.Function("rule", [rule_str]) - rule_atom = self.backend.add_atom(rule_sym) - self.backend.add_rule([rule_atom], [], choice=True) - self.assumptions.append(rule_atom) - rule_atoms = [rule_atom] - else: - rule_atoms = [] - return rule_atoms - def fact(self, head): """ASP fact (a rule without a body).""" symbols = _normalize(head) @@ -332,30 +288,6 @@ class PyclingoDriver(object): for s in symbols: self.assumptions.append(atoms[s]) - def rule(self, head, body): - """ASP rule (an implication).""" - head_symbols = _normalize(head) - body_symbols = _normalize(body) - - symbols = head_symbols + body_symbols - atoms = {} - for s in symbols: - atoms[s] = self.backend.add_atom(s) - - # Special assumption atom to allow rules to be in unsat cores - head_str = ",".join(str(a) for a in head_symbols) - body_str = ",".join(str(a) for a in body_symbols) - rule_str = "%s :- %s." % (head_str, body_str) - - rule_atoms = self._register_rule_for_cores(rule_str) - - # print rule before adding - self.out.write("%s\n" % rule_str) - self.backend.add_rule( - [atoms[s] for s in head_symbols], - [atoms[s] for s in body_symbols] + rule_atoms - ) - def solve( self, solver_setup, specs, dump=None, nmodels=0, timers=False, stats=False, tests=False @@ -460,7 +392,6 @@ class SpackSolverSetup(object): self.post_facts = [] # id for dummy variables - self.card = 0 self._condition_id_counter = itertools.count() # Caches to optimize the setup phase of the solver |