1"""
2Test completing types using information from other shared libraries.
3"""
4
5import os
6import lldb
7from lldbsuite.test.decorators import *
8from lldbsuite.test.lldbtest import *
9from lldbsuite.test import lldbutil
10
11
12class LimitDebugInfoTestCase(TestBase):
13
14    mydir = TestBase.compute_mydir(__file__)
15
16    def _check_type(self, target, name):
17        exe = target.FindModule(lldb.SBFileSpec("a.out"))
18        type_ = exe.FindFirstType(name)
19        self.trace("type_: %s"%type_)
20        self.assertTrue(type_)
21        base = type_.GetDirectBaseClassAtIndex(0).GetType()
22        self.trace("base:%s"%base)
23        self.assertTrue(base)
24        self.assertEquals(base.GetNumberOfFields(), 0)
25
26    def _check_debug_info_is_limited(self, target):
27        # Without other shared libraries we should only see the member declared
28        # in the derived class. This serves as a sanity check that we are truly
29        # building with limited debug info.
30        self._check_type(target, "InheritsFromOne")
31        self._check_type(target, "InheritsFromTwo")
32
33    @skipIf(bugnumber="pr46284", debug_info="gmodules")
34    @skipIfWindows # Clang emits type info even with -flimit-debug-info
35    def test_one_and_two_debug(self):
36        self.build()
37        target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
38
39        self._check_debug_info_is_limited(target)
40
41        self.registerSharedLibrariesWithTarget(target, ["one", "two"])
42
43        # But when other shared libraries are loaded, we should be able to see
44        # all members.
45        self.expect_expr("inherits_from_one.member", result_value="47")
46        self.expect_expr("inherits_from_one.one", result_value="142")
47
48        self.expect_expr("inherits_from_two.member", result_value="47")
49        self.expect_expr("inherits_from_two.one", result_value="142")
50        self.expect_expr("inherits_from_two.two", result_value="242")
51
52    @skipIf(bugnumber="pr46284", debug_info="gmodules")
53    @skipIfWindows # Clang emits type info even with -flimit-debug-info
54    def test_two_debug(self):
55        self.build(dictionary=dict(STRIP_ONE="1"))
56        target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
57
58        self._check_debug_info_is_limited(target)
59
60        self.registerSharedLibrariesWithTarget(target, ["one", "two"])
61
62        # This time, we should only see the members from the second library.
63        self.expect_expr("inherits_from_one.member", result_value="47")
64        self.expect("expr inherits_from_one.one", error=True,
65            substrs=["no member named 'one' in 'InheritsFromOne'"])
66
67        self.expect_expr("inherits_from_two.member", result_value="47")
68        self.expect("expr inherits_from_two.one", error=True,
69            substrs=["no member named 'one' in 'InheritsFromTwo'"])
70        self.expect_expr("inherits_from_two.two", result_value="242")
71
72    @skipIf(bugnumber="pr46284", debug_info="gmodules")
73    @skipIfWindows # Clang emits type info even with -flimit-debug-info
74    def test_one_debug(self):
75        self.build(dictionary=dict(STRIP_TWO="1"))
76        target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
77
78        self._check_debug_info_is_limited(target)
79
80        self.registerSharedLibrariesWithTarget(target, ["one", "two"])
81
82        # In this case we should only see the members from the second library.
83        # Note that we cannot see inherits_from_two.one because without debug
84        # info for "Two", we cannot determine that it in fact inherits from
85        # "One".
86        self.expect_expr("inherits_from_one.member", result_value="47")
87        self.expect_expr("inherits_from_one.one", result_value="142")
88
89        self.expect_expr("inherits_from_two.member", result_value="47")
90        self.expect("expr inherits_from_two.one", error=True,
91            substrs=["no member named 'one' in 'InheritsFromTwo'"])
92        self.expect("expr inherits_from_two.two", error=True,
93            substrs=["no member named 'two' in 'InheritsFromTwo'"])
94