def evalFilter(ctx, part):
# TODO: Deal with dict returned from evalPart!
for c in evalPart(ctx, part.p):
if _ebv(
part.expr,
c.forget(ctx, _except=part._vars)
if not part.no_isolated_scope else c):
yield c
def evalLeftJoin(ctx, join):
# import pdb; pdb.set_trace()
for a in evalPart(ctx, join.p1):
ok = False
c = ctx.thaw(a)
for b in evalPart(c, join.p2):
if _ebv(join.expr, b.forget(ctx)):
ok = True
yield b
if not ok:
# we've cheated, the ctx above may contain
# vars bound outside our scope
# before we yield a solution without the OPTIONAL part
# check that we would have had no OPTIONAL matches
# even without prior bindings...
if not any(_ebv(join.expr, b) for b in evalPart(ctx.thaw(a.remember(join.p1._vars)), join.p2)):
yield a
def evalFilter(ctx, part):
# TODO: Deal with dict returned from evalPart!
for v, f in discriminate_filters(part.expr):
if v not in ctx.filters:
ctx.filters[v] = set([])
ctx.filters[v].add(f)
for c in evalPart(ctx, part.p):
if _ebv(part.expr, c.forget(ctx)):
yield c
def evalLeftJoin(ctx, join):
# import pdb; pdb.set_trace()
for a in evalPart(ctx, join.p1):
ok = False
c = ctx.thaw(a)
for b in evalPart(c, join.p2):
if _ebv(join.expr, b.forget(ctx)):
ok = True
yield b
if not ok:
# we've cheated, the ctx above may contain
# vars bound outside our scope
# before we yield a solution without the OPTIONAL part
# check that we would have had no OPTIONAL matches
# even without prior bindings...
if not any(_ebv(join.expr, b) for b in
evalPart(ctx.thaw(a.remember(join.p1._vars)), join.p2)):
yield a
def evalFilter(ctx, part):
# TODO: Deal with dict returned from evalPart!
for c in evalPart(ctx, part.p):
if _ebv(part.expr, c.forget(ctx)):
yield c
def evalFilter(ctx, part):
# TODO: Deal with dict returned from evalPart!
for c in evalPart(ctx, part.p):
if _ebv(part.expr, c.forget(ctx)):
yield c
def evalFilter(ctx, part):
# TODO: Deal with dict returned from evalPart!
for c in evalPart(ctx, part.p):
if _ebv(part.expr, c.forget(ctx, _except=part._vars) if not part.no_isolated_scope else c):
yield c
