"""Test evaluating expressions which ref. index variable 'i' which just goes
from out of scope to in scope when stopped at the breakpoint."""


import lldb
from lldbsuite.test.lldbtest import *
import lldbsuite.test.lldbutil as lldbutil


class NonOverlappingIndexVariableCase(TestBase):
    def setUp(self):
        TestBase.setUp(self)
        self.source = "main.cpp"
        self.line_to_break = line_number(self.source, "// Set breakpoint here.")

    # rdar://problem/9890530
    def test_eval_index_variable(self):
        """Test expressions of variable 'i' which appears in two for loops."""
        self.build()
        self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)

        lldbutil.run_break_set_by_file_and_line(
            self,
            self.source,
            self.line_to_break,
            num_expected_locations=1,
            loc_exact=True,
        )

        self.runCmd("run", RUN_SUCCEEDED)

        # The stop reason of the thread should be breakpoint.
        self.expect(
            "thread list",
            STOPPED_DUE_TO_BREAKPOINT,
            substrs=["stopped", "stop reason = breakpoint"],
        )

        self.runCmd("frame variable i")
        self.runCmd("expr i")
        self.runCmd("expr ptr[0]->point.x")
        self.runCmd("expr ptr[0]->point.y")
        self.runCmd("expr ptr[i]->point.x")
        self.runCmd("expr ptr[i]->point.y")