xref: /llvm-project/lldb/test/API/commands/expression/import-std-module/array/TestArrayFromStdModule.py (revision 15f3cd6bfc670ba6106184a903eb04be059e5977) 
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
12    @add_test_categories(["libc++"])
13    @skipIf(compiler=no_match("clang"))
14    def test(self):
15        self.build()
16
17        lldbutil.run_to_source_breakpoint(self,
18                                          "// Set break point at this line.",
19                                          lldb.SBFileSpec("main.cpp"))
20
21        self.runCmd("settings set target.import-std-module true")
22
23        size_type = "size_type"
24        value_type = "value_type"
25        iterator = "iterator"
26        riterator = "reverse_iterator"
27
28        # Test inspecting an array of integers.
29        array_type = "std::array<int, 3>"
30        self.expect_expr("a",
31                         result_type=array_type,
32                         result_children=[
33                             ValueCheck(name="__elems_", children=[
34                                 ValueCheck(value="3"),
35                                 ValueCheck(value="1"),
36                                 ValueCheck(value="2"),
37                             ])
38                         ])
39        self.expect_expr("a.size()", result_type=size_type, result_value="3")
40        self.expect_expr("a.front()", result_type=value_type, result_value="3")
41        self.expect_expr("a[1]", result_type=value_type, result_value="1")
42        self.expect_expr("a.back()", result_type=value_type, result_value="2")
43
44        # Both are just pointers to the underlying elements.
45        self.expect_expr("a.begin()", result_type=iterator)
46        self.expect_expr("a.rbegin()", result_type=riterator)
47
48        self.expect_expr("*a.begin()", result_type=value_type, result_value="3")
49        self.expect_expr("*a.rbegin()", result_type="int", result_value="2")
50
51        self.expect_expr("a.at(0)", result_type=value_type, result_value="3")
52
53
54        # Same again with an array that has an element type from debug info.
55        array_type = "std::array<DbgInfo, 1>"
56
57        dbg_info_elem_children = [ValueCheck(value="4")]
58        dbg_info_elem = [ValueCheck(children=dbg_info_elem_children)]
59
60        self.expect_expr("b",
61                         result_type=array_type,
62                         result_children=[
63                             ValueCheck(name="__elems_", children=dbg_info_elem)
64                         ])
65        self.expect_expr("b.size()", result_type=size_type, result_value="1")
66        self.expect_expr("b.front()", result_type=value_type, result_children=dbg_info_elem_children)
67        self.expect_expr("b[0]", result_type=value_type, result_children=dbg_info_elem_children)
68        self.expect_expr("b.back()", result_type=value_type, result_children=dbg_info_elem_children)
69
70        # Both are just pointers to the underlying elements.
71        self.expect_expr("b.begin()", result_type=iterator)
72        self.expect_expr("b.rbegin()", result_type=riterator)
73
74        self.expect_expr("*b.begin()", result_type=value_type, result_children=dbg_info_elem_children)
75        self.expect_expr("*b.rbegin()", result_type="DbgInfo", result_children=dbg_info_elem_children)
76
77        self.expect_expr("b.at(0)", result_type=value_type, result_children=dbg_info_elem_children)
78
79