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import lldb
from lldbsuite.test.decorators import *
import lldbsuite.test.lldbtest as lldbtest
import lldbsuite.test.lldbutil as lldbutil
class TestCase(lldbtest.TestBase):
@swiftTest
@skipIf(oslist=["windows", "linux"])
def test(self):
"""Test conditions for async step-in."""
self.build()
src = lldb.SBFileSpec("main.swift")
target, _, thread, _ = lldbutil.run_to_source_breakpoint(self, "await f()", src)
self.assertEqual(thread.frame[0].function.mangled, "$s1a5entryO4mainyyYaFZ")
function = target.FindFunctions("$s1a5entryO4mainyyYaFZTQ0_")[0].function
instructions = list(function.GetInstructions(target))
self.assertGreater(len(instructions), 0)
# Expected to be a trampoline that tail calls `swift_task_switch`.
self.assertIn("swift_task_switch", instructions[-1].GetComment(target))
# Using the line table, build a set of the non-zero line numbers for
# this this function - and verify that there is exactly one line.
lines = {inst.addr.line_entry.line for inst in instructions}
lines.remove(0)
self.assertEqual(lines, {3})
# Required for builds that have debug info.
self.runCmd("settings set target.process.thread.step-avoid-libraries libswift_Concurrency.dylib")
thread.StepInto()
frame = thread.frame[0]
# Step in from `main` should progress through to `f`.
self.assertEqual(frame.name, "a.f() async -> Swift.Int")
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