1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
# Copyright 2021 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("//build/buildflag_header.gni")
import("//build/config/rust.gni")
if (toolchain_has_rust) {
config("edition_2021") {
rustflags = [ "--edition=2021" ]
}
config("edition_2018") {
rustflags = [ "--edition=2018" ]
}
config("edition_2015") {
rustflags = [ "--edition=2015" ]
}
if (enable_cxx) {
# The required dependencies for cxx-generated bindings, that must be included
# on the C++ side.
static_library("cxx_cppdeps") {
sources = [
"//third_party/rust/chromium_crates_io/vendor/cxx-1.0.110/include/cxx.h",
"//third_party/rust/chromium_crates_io/vendor/cxx-1.0.110/src/cxx.cc",
# Our version-independent forwarding header, which we patch cxx.cc to
# use since we want it to use an absolute path for its include.
"//third_party/rust/cxx/v1/cxx.h",
]
defines = [ "RUST_CXX_NO_EXCEPTIONS" ]
# We cannot depend on base/base_export.h because base depends on us.
if (is_component_build) {
if (is_win) {
defines += [ "CXX_RS_EXPORT=__declspec(dllexport)" ]
} else {
defines +=
[ "CXX_RS_EXPORT=__attribute__((visibility(\"default\")))" ]
}
} else {
defines += [ "CXX_RS_EXPORT=" ]
}
# Depending on the C++ bindings side of cxx then requires also depending
# on the Rust bindings, since one calls the other. And the Rust bindings
# require the Rust standard library.
deps = [ ":cxx_rustdeps" ]
}
# The required dependencies for cxx-generated bindings, that must be included
# on the Rust side.
group("cxx_rustdeps") {
public_deps = [ "//third_party/rust/cxx/v1:lib" ]
}
}
}
# Enables code behind #[cfg(test)]. This should only be used for targets where
# testonly=true.
config("test") {
rustflags = [
"--cfg",
"test",
]
}
# TODO(crbug.com/gn/104): GN rust_proc_macro targets are missing this
# command line flag, for the proc_macro crate which is provided by rustc for
# compiling proc-macros.
config("proc_macro_extern") {
rustflags = [
"--extern",
"proc_macro",
]
}
# Forbids unsafe code in crates with this config.
config("forbid_unsafe") {
rustflags = [ "-Funsafe_code" ]
}
config("panic_immediate_abort") {
visibility = [ "//build/rust/std/rules:*" ]
if (is_official_build) {
rustflags = [
"--cfg",
"feature=\"panic_immediate_abort\"",
]
}
}
config("is_gtest_unittests") {
rustflags = [
"--cfg",
"is_gtest_unittests",
]
}
|
