tvl-depot/absl/copts.bzl
Abseil Team ff70456473 Changes imported from Abseil "staging" branch:
- 20f4e7133d695e9a05e13ebdfd4d78da310b42b5 Remove the warning supressions -Wno-documentation and by Derek Mauro <dmauro@google.com>
  - e1bde85c0571673b1e7a88b9d45a393606ba7e6c Changed the optimized version of strings_internal::JoinAl... by Abseil Team <absl-team@google.com>
  - 746e6716b4c15be61547670d68d25a1c850d3954 Add missing absl:: qualification. by Alex Strelnikov <strel@google.com>
  - 4e5c18c488cbd49ca72b02911cf22d830d5a7f16 Internals change: Remove the ability to pass a custom met... by Greg Falcon <gfalcon@google.com>
  - 65d58107a5730d4b6468bbffc72bea2f980af826 Moved most common character case (ascii printable) out of... by Abseil Team <absl-team@google.com>
  - f031331cc55a3d57b9110e12c7cbe50ac3e2a04f Add missing copyright headers to a few source files. by Greg Falcon <gfalcon@google.com>
  - 6035a77af6fa951c536b42df4c710d16d1817aec Enable libstdc++'s memcmp optimization in absl::equal for... by Abseil Team <absl-team@google.com>
  - 73a665a4a10781e5d89f75a876ece7ad859f4116 Fix minor spelling error "hexidecimal". by Abseil Team <absl-team@google.com>

GitOrigin-RevId: 20f4e7133d695e9a05e13ebdfd4d78da310b42b5
Change-Id: Id8c18ebd331d096935052a6ab259ebe0e2ef13ae
2017-12-20 17:03:18 -05:00

145 lines
4.3 KiB
Python

"""absl specific copts.
Flags specified here must not impact ABI. Code compiled with and without these
opts will be linked together, and in some cases headers compiled with and
without these options will be part of the same program.
"""
GCC_FLAGS = [
"-Wall",
"-Wextra",
"-Wcast-qual",
"-Wconversion-null",
"-Wmissing-declarations",
"-Wno-sign-compare",
"-Woverlength-strings",
"-Wpointer-arith",
"-Wunused-local-typedefs",
"-Wunused-result",
"-Wvarargs",
"-Wvla", # variable-length array
"-Wwrite-strings",
]
GCC_TEST_FLAGS = [
"-Wno-conversion-null",
"-Wno-missing-declarations",
"-Wno-sign-compare",
"-Wno-unused-function",
"-Wno-unused-parameter",
"-Wno-unused-private-field",
]
# Docs on single flags is preceded by a comment.
# Docs on groups of flags is preceded by ###.
LLVM_FLAGS = [
"-Wall",
"-Wextra",
"-Weverything",
# Abseil does not support C++98
"-Wno-c++98-compat-pedantic",
"-Wno-comma",
# Turns off all implicit conversion warnings. Most are re-enabled below.
"-Wno-conversion",
"-Wno-covered-switch-default",
"-Wno-deprecated",
"-Wno-disabled-macro-expansion",
"-Wno-double-promotion",
"-Wno-exit-time-destructors",
"-Wno-extra-semi",
"-Wno-float-conversion",
"-Wno-float-equal",
"-Wno-format-nonliteral",
# Too aggressive: warns on Clang extensions enclosed in Clang-only code paths.
"-Wno-gcc-compat",
"-Wno-global-constructors",
"-Wno-nested-anon-types",
"-Wno-non-modular-include-in-module",
"-Wno-old-style-cast",
"-Wno-packed",
"-Wno-padded",
# Warns on preferred usage of non-POD types such as string_view
"-Wno-range-loop-analysis",
"-Wno-reserved-id-macro",
"-Wno-shorten-64-to-32",
"-Wno-sign-conversion",
"-Wno-switch-enum",
"-Wno-thread-safety-negative",
"-Wno-undef",
"-Wno-unknown-warning-option",
"-Wno-unreachable-code",
# Causes warnings on include guards
"-Wno-unused-macros",
"-Wno-weak-vtables",
###
# Implicit conversion warnings turned off by -Wno-conversion
# which are re-enabled below.
"-Wbitfield-enum-conversion",
"-Wbool-conversion",
"-Wconstant-conversion",
"-Wenum-conversion",
"-Wint-conversion",
"-Wliteral-conversion",
"-Wnon-literal-null-conversion",
"-Wnull-conversion",
"-Wobjc-literal-conversion",
"-Wstring-conversion",
###
]
LLVM_TEST_FLAGS = [
"-Wno-c99-extensions",
"-Wno-missing-noreturn",
"-Wno-missing-prototypes",
"-Wno-null-conversion",
"-Wno-shadow",
"-Wno-shift-sign-overflow",
"-Wno-sign-compare",
"-Wno-unused-function",
"-Wno-unused-member-function",
"-Wno-unused-parameter",
"-Wno-unused-private-field",
"-Wno-unused-template",
"-Wno-used-but-marked-unused",
"-Wno-zero-as-null-pointer-constant",
]
MSVC_FLAGS = [
"/W3",
"/WX",
"/wd4005", # macro-redifinition
"/wd4068", # unknown pragma
"/wd4244", # conversion from 'type1' to 'type2', possible loss of data
"/wd4267", # conversion from 'size_t' to 'type', possible loss of data
"/wd4800", # forcing value to bool 'true' or 'false' (performance warning)
"/DNOMINMAX", # Don't define min and max macros (windows.h)
"/DWIN32_LEAN_AND_MEAN", # Don't bloat namespace with incompatible winsock versions.
"/D_CRT_SECURE_NO_WARNINGS", # Don't warn about usage of insecure C functions
]
MSVC_TEST_FLAGS = [
"/wd4018", # signed/unsigned mismatch
"/wd4101", # unreferenced local variable
"/wd4503", # decorated name length exceeded, name was truncated
]
# /Wall with msvc includes unhelpful warnings such as C4711, C4710, ...
ABSL_DEFAULT_COPTS = select({
"//absl:windows": MSVC_FLAGS,
"//absl:llvm_compiler": LLVM_FLAGS,
"//conditions:default": GCC_FLAGS,
})
# in absence of modules (--compiler=gcc or -c opt), cc_tests leak their copts
# to their (included header) dependencies and fail to build outside absl
ABSL_TEST_COPTS = ABSL_DEFAULT_COPTS + select({
"//absl:windows": MSVC_TEST_FLAGS,
"//absl:llvm_compiler": LLVM_TEST_FLAGS,
"//conditions:default": GCC_TEST_FLAGS,
})
ABSL_EXCEPTIONS_FLAG = select({
"//absl:windows": ["/U_HAS_EXCEPTIONS", "/D_HAS_EXCEPTIONS=1", "/EHsc"],
"//conditions:default": ["-fexceptions"],
})