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# Copyright 2018 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from . import base
from ..local.variants import ALL_VARIANTS, ALL_VARIANT_FLAGS
from .result import GroupedResult
STANDARD_VARIANT = set(["default"])
class VariantProc(base.TestProcProducer):
"""Processor creating variants.
For each test it keeps generator that returns variant, flags and id suffix.
It produces variants one at a time, so it's waiting for the result of one
variant to create another variant of the same test.
It maintains the order of the variants passed to the init.
There are some cases when particular variant of the test is not valid. To
ignore subtests like that, StatusFileFilterProc should be placed somewhere
after the VariantProc.
"""
def __init__(self, variants):
super(VariantProc, self).__init__('VariantProc')
self._next_variant = {}
self._variant_gens = {}
self._variants = variants
def setup(self, requirement=base.DROP_RESULT):
super(VariantProc, self).setup(requirement)
# VariantProc is optimized for dropping the result and it should be placed
# in the chain where it's possible.
assert requirement == base.DROP_RESULT
def _next_test(self, test):
gen = self._variants_gen(test)
self._next_variant[test.procid] = gen
return self._try_send_new_subtest(test, gen)
def _result_for(self, test, subtest, result):
gen = self._next_variant[test.procid]
if not self._try_send_new_subtest(test, gen):
self._send_result(test, None)
def _try_send_new_subtest(self, test, variants_gen):
for variant, flags, suffix in variants_gen:
subtest = self._create_subtest(test, '%s-%s' % (variant, suffix),
variant=variant, flags=flags)
if self._send_test(subtest):
return True
del self._next_variant[test.procid]
return False
def _variants_gen(self, test):
"""Generator producing (variant, flags, procid suffix) tuples."""
return self._get_variants_gen(test).gen(test)
def _get_variants_gen(self, test):
key = test.suite.name
variants_gen = self._variant_gens.get(key)
if not variants_gen:
variants_gen = test.suite.get_variants_gen(self._variants)
self._variant_gens[key] = variants_gen
return variants_gen
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