1
2import unittest2
3import os
4import shutil
5
6import lldb
7from lldbsuite.test.decorators import *
8from lldbsuite.test.lldbtest import *
9from lldbsuite.test import lldbutil
10
11
12class TestClangModuleUpdate(TestBase):
13    mydir = TestBase.compute_mydir(__file__)
14
15    @skipIf(debug_info=no_match(["gmodules"]))
16    @skipIfReproducer # VFS is a snapshot.
17    @skipIfDarwin # rdar://76540904
18    def test_expr(self):
19        with open(self.getBuildArtifact("module.modulemap"), "w") as f:
20            f.write("""
21                    module Foo { header "f.h" }
22                    """)
23        with open(self.getBuildArtifact("f.h"), "w") as f:
24            f.write("""
25                    struct Q { int i; };
26                    void f() {}
27                    """)
28
29        mod_cache = self.getBuildArtifact("private-module-cache")
30        if os.path.isdir(mod_cache):
31          shutil.rmtree(mod_cache)
32        d = {'OBJC_SOURCES': 'first.m'}
33        self.build(dictionary=d)
34        self.assertTrue(os.path.isdir(mod_cache), "module cache exists")
35
36        logfile = self.getBuildArtifact("modules.log")
37        self.runCmd("log enable -f %s lldb module" % logfile)
38        target, process, _, bkpt = lldbutil.run_to_name_breakpoint(self, "main")
39        self.assertIn("int i", str(target.FindTypes('Q').GetTypeAtIndex(0)))
40        self.expect("image list -g", patterns=[r'first\.o', r'Foo.*\.pcm'])
41
42        # Update the module.
43        with open(self.getBuildArtifact("f.h"), "w") as f:
44            f.write("""
45                    struct S { int i; };
46                    struct S getS() { struct S r = {1}; return r; }
47                    void f() {}
48                    """)
49
50        # Rebuild.
51        d = {'OBJC_SOURCES': 'second.m'}
52        self.build(dictionary=d)
53
54        # Reattach.
55        process.Kill()
56        target, process, _, _ = lldbutil.run_to_breakpoint_do_run(self, target, bkpt)
57        self.assertIn("int i", str(target.FindTypes('S').GetTypeAtIndex(0)))
58        self.expect("image list -g", patterns=[r'second\.o', r'Foo.*\.pcm'])
59
60        # Check log file.
61        found = False
62        with open(logfile, 'r') as f:
63            for line in f:
64                if "module changed" in line and "Foo" in line:
65                    found = True
66        self.assertTrue(found)
67