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        self.expect_expr("inherits_from_two.member", result_value="47")
48        self.expect_expr("inherits_from_two.one", result_value="142")
49        self.expect_expr("inherits_from_two.two", result_value="242")
50
51        self.expect_expr("one_as_member.member", result_value="47")
52        self.expect_expr("one_as_member.one.member", result_value="147")
53        self.expect_expr("two_as_member.member", result_value="47")
54        self.expect_expr("two_as_member.two.one.member", result_value="147")
55        self.expect_expr("two_as_member.two.member", result_value="247")
56
57    @skipIf(bugnumber="pr46284", debug_info="gmodules")
58    @skipIfWindows # Clang emits type info even with -flimit-debug-info
59    def test_two_debug(self):
60        self.build(dictionary=dict(STRIP_ONE="1"))
61        target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
62
63        self._check_debug_info_is_limited(target)
64
65        self.registerSharedLibrariesWithTarget(target, ["one", "two"])
66
67        # This time, we should only see the members from the second library.
68        self.expect_expr("inherits_from_one.member", result_value="47")
69        self.expect("expr inherits_from_one.one", error=True,
70            substrs=["no member named 'one' in 'InheritsFromOne'"])
71        self.expect_expr("inherits_from_two.member", result_value="47")
72        self.expect("expr inherits_from_two.one", error=True,
73            substrs=["no member named 'one' in 'InheritsFromTwo'"])
74        self.expect_expr("inherits_from_two.two", result_value="242")
75
76        self.expect_expr("one_as_member.member", result_value="47")
77        self.expect("expr one_as_member.one.member", error=True,
78                substrs=["no member named 'member' in 'member::One'"])
79        self.expect_expr("two_as_member.member", result_value="47")
80        self.expect("expr two_as_member.two.one.member", error=True,
81                substrs=["no member named 'member' in 'member::One'"])
82        self.expect_expr("two_as_member.two.member", result_value="247")
83
84    @skipIf(bugnumber="pr46284", debug_info="gmodules")
85    @skipIfWindows # Clang emits type info even with -flimit-debug-info
86    def test_one_debug(self):
87        self.build(dictionary=dict(STRIP_TWO="1"))
88        target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
89
90        self._check_debug_info_is_limited(target)
91
92        self.registerSharedLibrariesWithTarget(target, ["one", "two"])
93
94        # In this case we should only see the members from the second library.
95        # Note that we cannot see inherits_from_two.one because without debug
96        # info for "Two", we cannot determine that it in fact inherits from
97        # "One".
98        self.expect_expr("inherits_from_one.member", result_value="47")
99        self.expect_expr("inherits_from_one.one", result_value="142")
100        self.expect_expr("inherits_from_two.member", result_value="47")
101        self.expect("expr inherits_from_two.one", error=True,
102            substrs=["no member named 'one' in 'InheritsFromTwo'"])
103        self.expect("expr inherits_from_two.two", error=True,
104            substrs=["no member named 'two' in 'InheritsFromTwo'"])
105
106        self.expect_expr("one_as_member.member", result_value="47")
107        self.expect_expr("one_as_member.one.member", result_value="147")
108        self.expect_expr("two_as_member.member", result_value="47")
109        self.expect("expr two_as_member.two.one.member", error=True,
110                substrs=["no member named 'one' in 'member::Two'"])
111        self.expect("expr two_as_member.two.member", error=True,
112                substrs=["no member named 'member' in 'member::Two'"])
113