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from __future__ import print_function
from __future__ import absolute_import
import re
import lldb
from lldbsuite.test.lldbtest import *
import lldbsuite.test.lldbutil as lldbutil
import lldbsuite.test.test_categories as test_categories
# System modules
import os
import sys
# Third-party modules
# LLDB modules
import lldb
from .lldbtest import *
from . import configuration
from . import lldbutil
from .decorators import *
def inputFile():
return "input.swift"
def mainSourceFile():
return "main.swift"
def breakpointMarker():
return "Set breakpoint here."
class CommandParser:
def __init__(self, test):
self.breakpoint = None
self.exprs_and_regexps = []
self.test = test
def parse_input(self):
file_handle = open(inputFile(), 'r')
lines = file_handle.readlines()
current_expression = None
for line in lines:
if line.startswith('///'):
regexp = line[3:]
if current_expression:
self.exprs_and_regexps.append(
{'expr': current_expression, 'regexps': [regexp.strip()]})
current_expression = None
else:
if len(self.exprs_and_regexps):
self.exprs_and_regexps[-1][
'regexps'].append(regexp.strip())
else:
sys.exit("Failure parsing test: regexp with no command")
else:
if current_expression:
current_expression += line
else:
current_expression = line
def set_breakpoint(self, target):
self.breakpoint = target.BreakpointCreateBySourceRegex(
breakpointMarker(), lldb.SBFileSpec(mainSourceFile()))
def handle_breakpoint(self, test, thread, breakpoint_id):
if self.breakpoint.GetID() == breakpoint_id:
frame = thread.GetSelectedFrame()
if test.TraceOn():
print('Stopped at: %s' % frame)
options = lldb.SBExpressionOptions()
options.SetLanguage(lldb.eLanguageTypeSwift)
options.SetREPLMode(True)
options.SetFetchDynamicValue(lldb.eDynamicDontRunTarget)
for expr_and_regexp in self.exprs_and_regexps:
ret = frame.EvaluateExpression(
expr_and_regexp['expr'], options)
desc_stream = lldb.SBStream()
ret.GetDescription(desc_stream)
desc = desc_stream.GetData()
if test.TraceOn():
print("%s --> %s" % (expr_and_regexp['expr'], desc))
for regexp in expr_and_regexp['regexps']:
test.assertTrue(
re.search(
regexp,
desc),
"Output of REPL input\n" +
expr_and_regexp['expr'] +
"was\n" +
desc +
"which didn't match regexp " +
regexp)
return
class REPLTest(TestBase):
# Internal implementation
def getRerunArgs(self):
# The -N option says to NOT run a if it matches the option argument, so
# if we are using dSYM we say to NOT run dwarf (-N dwarf) and vice
# versa.
if self.using_dsym is None:
# The test was skipped altogether.
return ""
elif self.using_dsym:
return "-N dwarf %s" % (self.mydir)
else:
return "-N dsym %s" % (self.mydir)
def BuildSourceFile(self):
if os.path.exists(mainSourceFile()):
return
source_file = open(mainSourceFile(), 'w+')
source_file.write("func stop_here() {\n")
source_file.write(" // " + breakpointMarker() + "\n")
source_file.write("}\n")
source_file.write("stop_here()\n")
source_file.close()
return
def BuildMakefile(self):
if os.path.exists("Makefile"):
return
makefile = open("Makefile", 'w+')
level = os.sep.join(
[".."] * len(self.mydir.split(os.sep))) + os.sep + "make"
makefile.write("LEVEL = " + level + "\n")
makefile.write("SWIFT_SOURCES := " + mainSourceFile() + "\n")
makefile.write("include $(LEVEL)/Makefile.rules\n")
makefile.flush()
makefile.close()
@skipUnlessDarwin
def __test_with_dsym(self):
return
def __test_with_dwarf(self):
self.using_dsym = False
self.BuildSourceFile()
self.BuildMakefile()
self.build()
self.do_test()
def __test_with_dwo(self):
return
def __test_with_gmodules(self):
return
def execute_user_command(self, __command):
exec(__command, globals(), locals())
def do_test(self):
exe_name = "a.out"
exe = self.getBuildArtifact(exe_name)
target = self.dbg.CreateTarget(exe)
parser = CommandParser(self)
parser.parse_input()
parser.set_breakpoint(target)
process = target.LaunchSimple(None, None, os.getcwd())
while lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint):
thread = lldbutil.get_stopped_thread(
process, lldb.eStopReasonBreakpoint)
breakpoint_id = thread.GetStopReasonDataAtIndex(0)
parser.handle_breakpoint(self, thread, breakpoint_id)
process.Continue()
def ApplyDecoratorsToFunction(func, decorators):
tmp = func
if isinstance(decorators, list):
for decorator in decorators:
tmp = decorator(tmp)
elif hasattr(decorators, '__call__'):
tmp = decorators(tmp)
return tmp
def MakeREPLTest(__file, __globals, decorators=None):
# Adjust the filename if it ends in .pyc. We want filenames to
# reflect the source python file, not the compiled variant.
if __file is not None and __file.endswith(".pyc"):
# Strip the trailing "c"
__file = __file[0:-1]
# Derive the test name from the current file name
file_basename = os.path.basename(__file)
REPLTest.mydir = TestBase.compute_mydir(__file)
test_name, _ = os.path.splitext(file_basename)
# Build the test case
test = type(test_name, (REPLTest,), {'using_dsym': None})
test.name = test_name
target_platform = lldb.selected_platform.GetTriple().split('-')[2]
if test_categories.is_supported_on_platform(
"dwarf", target_platform, configuration.compiler):
test.test_with_dwarf = ApplyDecoratorsToFunction(
test._REPLTest__test_with_dwarf, decorators)
# Add the test case to the globals, and hide REPLTest
__globals.update({test_name: test})
# Keep track of the original test filename so we report it
# correctly in test results.
test.test_filename = __file
return test
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