xref: /aosp_15_r20/external/pigweed/pw_function/BUILD.gn (revision 61c4878ac05f98d0ceed94b57d316916de578985) 
1# Copyright 2021 The Pigweed Authors
2#
3# Licensed under the Apache License, Version 2.0 (the "License"); you may not
4# use this file except in compliance with the License. You may obtain a copy of
5# the License at
6#
7#     https://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12# License for the specific language governing permissions and limitations under
13# the License.
14
15import("//build_overrides/pigweed.gni")
16
17import("$dir_pw_bloat/bloat.gni")
18import("$dir_pw_build/module_config.gni")
19import("$dir_pw_build/target_types.gni")
20import("$dir_pw_docgen/docs.gni")
21import("$dir_pw_function/function.gni")
22import("$dir_pw_unit_test/test.gni")
23
24config("public_include_path") {
25  include_dirs = [ "public" ]
26  visibility = [ ":*" ]
27}
28
29pw_source_set("config") {
30  public = [ "public/pw_function/config.h" ]
31  public_configs = [ ":public_include_path" ]
32  public_deps = [
33    "$dir_pw_third_party/fuchsia:fit",
34    pw_function_CONFIG,
35  ]
36  visibility = [ ":*" ]
37}
38
39pw_source_set("pw_function") {
40  public_configs = [ ":public_include_path" ]
41  public_deps = [
42    ":config",
43    "$dir_pw_third_party/fuchsia:fit",
44    dir_pw_assert,
45    dir_pw_preprocessor,
46  ]
47  public = [ "public/pw_function/function.h" ]
48}
49
50config("enable_dynamic_allocation_config") {
51  defines = [ "PW_FUNCTION_ENABLE_DYNAMIC_ALLOCATION=1" ]
52  visibility = [ ":*" ]
53}
54
55# Use this for pw_function_CONFIG to enable dynamic allocation.
56pw_source_set("enable_dynamic_allocation") {
57  public_configs = [ ":enable_dynamic_allocation_config" ]
58}
59
60pw_source_set("pointer") {
61  public_configs = [ ":public_include_path" ]
62  public = [ "public/pw_function/pointer.h" ]
63  sources = [ "public/pw_function/internal/static_invoker.h" ]
64}
65
66pw_source_set("scope_guard") {
67  public_configs = [ ":public_include_path" ]
68  public = [ "public/pw_function/scope_guard.h" ]
69}
70
71pw_doc_group("docs") {
72  inputs = [ "Kconfig" ]
73  sources = [ "docs.rst" ]
74  report_deps = [
75    ":callable_size",
76    ":function_size",
77  ]
78}
79
80pw_test_group("tests") {
81  tests = [
82    ":function_test",
83    ":pointer_test",
84    ":scope_guard_test",
85    "$dir_pw_third_party/fuchsia:function_tests",
86  ]
87}
88
89pw_test("function_test") {
90  deps = [
91    ":pw_function",
92    dir_pw_polyfill,
93  ]
94  sources = [ "function_test.cc" ]
95  negative_compilation_tests = true
96}
97
98pw_test("pointer_test") {
99  deps = [
100    ":pointer",
101    ":pw_function",
102  ]
103  sources = [ "pointer_test.cc" ]
104}
105
106pw_test("scope_guard_test") {
107  sources = [ "scope_guard_test.cc" ]
108  deps = [
109    ":pw_function",
110    ":scope_guard",
111  ]
112}
113
114pw_size_diff("function_size") {
115  title = "Pigweed function size report"
116
117  binaries = [
118    {
119      target = "size_report:basic_function"
120      base = "size_report:pointer_base"
121      label = "Simple pw::Function vs. function pointer"
122    },
123  ]
124}
125
126pw_size_diff("callable_size") {
127  title = "Size comparison of callable objects"
128
129  binaries = [
130    {
131      target = "size_report:callable_size_function_pointer"
132      base = "size_report:callable_size_base"
133      label = "Function pointer"
134    },
135    {
136      target = "size_report:callable_size_static_lambda"
137      base = "size_report:callable_size_base"
138      label = "Static lambda (operator+)"
139    },
140    {
141      target = "size_report:callable_size_simple_lambda"
142      base = "size_report:callable_size_base"
143      label = "Non-capturing lambda"
144    },
145    {
146      target = "size_report:callable_size_capturing_lambda"
147      base = "size_report:callable_size_base"
148      label = "Simple capturing lambda"
149    },
150    {
151      target = "size_report:callable_size_multi_capturing_lambda"
152      base = "size_report:callable_size_base"
153      label = "Multi-argument capturing lambda"
154    },
155    {
156      target = "size_report:callable_size_custom_class"
157      base = "size_report:callable_size_base"
158      label = "Custom class"
159    },
160  ]
161}
162