1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include <sstream>
6
7 #include "gn/config.h"
8 #include "gn/config_values_extractors.h"
9 #include "gn/target.h"
10 #include "gn/test_with_scope.h"
11 #include "util/test/test.h"
12
13 namespace {
14
15 struct FlagWriter {
operator ()__anonfd3280de0111::FlagWriter16 void operator()(const std::string& dir, std::ostream& out) const {
17 out << dir << " ";
18 }
19 };
20
21 struct IncludeWriter {
operator ()__anonfd3280de0111::IncludeWriter22 void operator()(const SourceDir& dir, std::ostream& out) const {
23 out << dir.value() << " ";
24 }
25 };
26
27 } // namespace
28
TEST(ConfigValuesExtractors,IncludeOrdering)29 TEST(ConfigValuesExtractors, IncludeOrdering) {
30 TestWithScope setup;
31 Err err;
32
33 // Construct a chain of dependencies: target -> dep1 -> dep2
34 // Add representative values: cflags (opaque, always copied) and include_dirs
35 // (uniquified) to each one so we can check what comes out the other end.
36
37 // Set up dep2, direct and all dependent configs.
38 Config dep2_all(setup.settings(), Label(SourceDir("//dep2/"), "all"));
39 dep2_all.own_values().cflags().push_back("--dep2-all");
40 dep2_all.own_values().include_dirs().push_back(SourceDir("//dep2/all/"));
41 ASSERT_TRUE(dep2_all.OnResolved(&err));
42
43 Config dep2_direct(setup.settings(), Label(SourceDir("//dep2/"), "direct"));
44 dep2_direct.own_values().cflags().push_back("--dep2-direct");
45 dep2_direct.own_values().include_dirs().push_back(
46 SourceDir("//dep2/direct/"));
47 ASSERT_TRUE(dep2_direct.OnResolved(&err));
48
49 Target dep2(setup.settings(), Label(SourceDir("//dep2/"), "dep2"));
50 dep2.set_output_type(Target::SOURCE_SET);
51 dep2.visibility().SetPublic();
52 dep2.SetToolchain(setup.toolchain());
53 dep2.all_dependent_configs().push_back(LabelConfigPair(&dep2_all));
54 dep2.public_configs().push_back(LabelConfigPair(&dep2_direct));
55
56 // Set up dep1, direct and all dependent configs. Also set up a subconfig
57 // on "dep1_all" to test sub configs.
58 Config dep1_all_sub(setup.settings(), Label(SourceDir("//dep1"), "allch"));
59 dep1_all_sub.own_values().cflags().push_back("--dep1-all-sub");
60 ASSERT_TRUE(dep1_all_sub.OnResolved(&err));
61
62 Config dep1_all(setup.settings(), Label(SourceDir("//dep1/"), "all"));
63 dep1_all.own_values().cflags().push_back("--dep1-all");
64 dep1_all.own_values().include_dirs().push_back(SourceDir("//dep1/all/"));
65 dep1_all.configs().push_back(LabelConfigPair(&dep1_all_sub));
66 ASSERT_TRUE(dep1_all.OnResolved(&err));
67
68 Config dep1_direct(setup.settings(), Label(SourceDir("//dep1/"), "direct"));
69 dep1_direct.own_values().cflags().push_back("--dep1-direct");
70 dep1_direct.own_values().include_dirs().push_back(
71 SourceDir("//dep1/direct/"));
72 ASSERT_TRUE(dep1_direct.OnResolved(&err));
73
74 Target dep1(setup.settings(), Label(SourceDir("//dep1/"), "dep1"));
75 dep1.set_output_type(Target::SOURCE_SET);
76 dep1.visibility().SetPublic();
77 dep1.SetToolchain(setup.toolchain());
78 dep1.all_dependent_configs().push_back(LabelConfigPair(&dep1_all));
79 dep1.public_configs().push_back(LabelConfigPair(&dep1_direct));
80 dep1.private_deps().push_back(LabelTargetPair(&dep2));
81
82 // Set up target, direct and all dependent configs.
83 Config target_all(setup.settings(), Label(SourceDir("//target/"), "all"));
84 target_all.own_values().cflags().push_back("--target-all");
85 target_all.own_values().include_dirs().push_back(SourceDir("//target/all/"));
86 ASSERT_TRUE(target_all.OnResolved(&err));
87
88 Config target_direct(setup.settings(),
89 Label(SourceDir("//target/"), "direct"));
90 target_direct.own_values().cflags().push_back("--target-direct");
91 target_direct.own_values().include_dirs().push_back(
92 SourceDir("//target/direct/"));
93 ASSERT_TRUE(target_direct.OnResolved(&err));
94
95 // This config is applied directly to target.
96 Config target_config(setup.settings(),
97 Label(SourceDir("//target/"), "config"));
98 target_config.own_values().cflags().push_back("--target-config");
99 target_config.own_values().include_dirs().push_back(
100 SourceDir("//target/config/"));
101 ASSERT_TRUE(target_config.OnResolved(&err));
102
103 Target target(setup.settings(), Label(SourceDir("//target/"), "target"));
104 target.set_output_type(Target::SOURCE_SET);
105 target.SetToolchain(setup.toolchain());
106 target.all_dependent_configs().push_back(LabelConfigPair(&target_all));
107 target.public_configs().push_back(LabelConfigPair(&target_direct));
108 target.configs().push_back(LabelConfigPair(&target_config));
109 target.private_deps().push_back(LabelTargetPair(&dep1));
110
111 // Additionally add some values directly on "target".
112 target.config_values().cflags().push_back("--target");
113 target.config_values().include_dirs().push_back(SourceDir("//target/"));
114
115 // Mark targets resolved. This should push dependent configs.
116 ASSERT_TRUE(dep2.OnResolved(&err));
117 ASSERT_TRUE(dep1.OnResolved(&err));
118 ASSERT_TRUE(target.OnResolved(&err));
119
120 // Verify cflags by serializing.
121 std::ostringstream flag_out;
122 FlagWriter flag_writer;
123 RecursiveTargetConfigToStream<std::string, FlagWriter>(
124 &target, &ConfigValues::cflags, flag_writer, flag_out);
125 EXPECT_EQ(flag_out.str(),
126 "--target --target-config --target-all --target-direct "
127 "--dep1-all --dep1-all-sub --dep2-all --dep1-direct ");
128
129 // Verify include dirs by serializing.
130 std::ostringstream include_out;
131 IncludeWriter include_writer;
132 RecursiveTargetConfigToStream<SourceDir, IncludeWriter>(
133 &target, &ConfigValues::include_dirs, include_writer, include_out);
134 EXPECT_EQ(include_out.str(),
135 "//target/ //target/config/ //target/all/ //target/direct/ "
136 "//dep1/all/ //dep2/all/ //dep1/direct/ ");
137 }
138