xref: /llvm-project/lldb/test/API/commands/expression/import-std-module/array/TestArrayFromStdModule.py (revision 2238dcc39358353cac21df75c3c3286ab20b8f53) 
1"""
2Test basic std::array functionality.
3"""
4
5from lldbsuite.test.decorators import *
6from lldbsuite.test.lldbtest import *
7from lldbsuite.test import lldbutil
8
9
10class TestCase(TestBase):
11    @add_test_categories(["libc++"])
12    @skipIf(compiler=no_match("clang"))
13    def test(self):
14        self.build()
15
16        lldbutil.run_to_source_breakpoint(
17            self, "// Set break point at this line.", lldb.SBFileSpec("main.cpp")
18        )
19
20        self.runCmd("settings set target.import-std-module true")
21
22        size_type = "size_type"
23        value_type = "value_type"
24        iterator = "iterator"
25        riterator = "reverse_iterator"
26
27        # Test inspecting an array of integers.
28        array_type = "std::array<int, 3>"
29        self.expect_expr(
30            "a",
31            result_type=array_type,
32            result_children=[
33                ValueCheck(
34                    name="__elems_",
35                    children=[
36                        ValueCheck(value="3"),
37                        ValueCheck(value="1"),
38                        ValueCheck(value="2"),
39                    ],
40                )
41            ],
42        )
43        self.expect_expr("a.size()", result_type=size_type, result_value="3")
44        self.expect_expr("a.front()", result_type=value_type, result_value="3")
45        self.expect_expr("a[1]", result_type=value_type, result_value="1")
46        self.expect_expr("a.back()", result_type=value_type, result_value="2")
47
48        # Both are just pointers to the underlying elements.
49        self.expect_expr("a.begin()", result_type=iterator)
50        self.expect_expr("a.rbegin()", result_type=riterator)
51
52        self.expect_expr("*a.begin()", result_type=value_type, result_value="3")
53        self.expect_expr("*a.rbegin()", result_type="int", result_value="2")
54
55        self.expect_expr("a.at(0)", result_type=value_type, result_value="3")
56
57        # Same again with an array that has an element type from debug info.
58        array_type = "std::array<DbgInfo, 1>"
59
60        dbg_info_elem_children = [ValueCheck(value="4")]
61        dbg_info_elem = [ValueCheck(children=dbg_info_elem_children)]
62
63        self.expect_expr(
64            "b",
65            result_type=array_type,
66            result_children=[ValueCheck(name="__elems_", children=dbg_info_elem)],
67        )
68        self.expect_expr("b.size()", result_type=size_type, result_value="1")
69        self.expect_expr(
70            "b.front()", result_type=value_type, result_children=dbg_info_elem_children
71        )
72        self.expect_expr(
73            "b[0]", result_type=value_type, result_children=dbg_info_elem_children
74        )
75        self.expect_expr(
76            "b.back()", result_type=value_type, result_children=dbg_info_elem_children
77        )
78
79        # Both are just pointers to the underlying elements.
80        self.expect_expr("b.begin()", result_type=iterator)
81        self.expect_expr("b.rbegin()", result_type=riterator)
82
83        self.expect_expr(
84            "*b.begin()", result_type=value_type, result_children=dbg_info_elem_children
85        )
86        self.expect_expr(
87            "*b.rbegin()", result_type="DbgInfo", result_children=dbg_info_elem_children
88        )
89
90        self.expect_expr(
91            "b.at(0)", result_type=value_type, result_children=dbg_info_elem_children
92        )
93