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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  sources = [ "docs.rst" ]
73  report_deps = [
74    ":callable_size",
75    ":function_size",
76  ]
77}
78
79pw_test_group("tests") {
80  tests = [
81    ":function_test",
82    ":pointer_test",
83    ":scope_guard_test",
84    "$dir_pw_third_party/fuchsia:function_tests",
85  ]
86}
87
88pw_test("function_test") {
89  deps = [
90    ":pw_function",
91    dir_pw_polyfill,
92  ]
93  sources = [ "function_test.cc" ]
94  negative_compilation_tests = true
95}
96
97pw_test("pointer_test") {
98  deps = [
99    ":pointer",
100    ":pw_function",
101  ]
102  sources = [ "pointer_test.cc" ]
103}
104
105pw_test("scope_guard_test") {
106  sources = [ "scope_guard_test.cc" ]
107  deps = [
108    ":pw_function",
109    ":scope_guard",
110  ]
111}
112
113pw_size_diff("function_size") {
114  title = "Pigweed function size report"
115
116  binaries = [
117    {
118      target = "size_report:basic_function"
119      base = "size_report:pointer_base"
120      label = "Simple pw::Function vs. function pointer"
121    },
122  ]
123}
124
125pw_size_diff("callable_size") {
126  title = "Size comparison of callable objects"
127
128  binaries = [
129    {
130      target = "size_report:callable_size_function_pointer"
131      base = "size_report:callable_size_base"
132      label = "Function pointer"
133    },
134    {
135      target = "size_report:callable_size_static_lambda"
136      base = "size_report:callable_size_base"
137      label = "Static lambda (operator+)"
138    },
139    {
140      target = "size_report:callable_size_simple_lambda"
141      base = "size_report:callable_size_base"
142      label = "Non-capturing lambda"
143    },
144    {
145      target = "size_report:callable_size_capturing_lambda"
146      base = "size_report:callable_size_base"
147      label = "Simple capturing lambda"
148    },
149    {
150      target = "size_report:callable_size_multi_capturing_lambda"
151      base = "size_report:callable_size_base"
152      label = "Multi-argument capturing lambda"
153    },
154    {
155      target = "size_report:callable_size_custom_class"
156      base = "size_report:callable_size_base"
157      label = "Custom class"
158    },
159  ]
160}
161