/* * Copyright 2018 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #ifndef SkMacros_DEFINED #define SkMacros_DEFINED #include "include/private/base/SkTo.h" // IWYU pragma: keep /* * Usage: SK_MACRO_CONCAT(a, b) to construct the symbol ab * * SK_MACRO_CONCAT_IMPL_PRIV just exists to make this work. Do not use directly * */ #define SK_MACRO_CONCAT(X, Y) … #define SK_MACRO_CONCAT_IMPL_PRIV(X, Y) … /* * Usage: SK_MACRO_APPEND_LINE(foo) to make foo123, where 123 is the current * line number. Easy way to construct * unique names for local functions or * variables. */ #define SK_MACRO_APPEND_LINE(name) … #define SK_MACRO_APPEND_COUNTER(name) … //////////////////////////////////////////////////////////////////////////////// // Can be used to bracket data types that must be dense/packed, e.g. hash keys. #if defined(__clang__) // This should work on GCC too, but GCC diagnostic pop didn't seem to work! #define SK_BEGIN_REQUIRE_DENSE … #define SK_END_REQUIRE_DENSE … #else #define SK_BEGIN_REQUIRE_DENSE #define SK_END_REQUIRE_DENSE #endif #if defined(__clang__) && defined(__has_feature) // Some compilers have a preprocessor that does not appear to do short-circuit // evaluation as expected #if __has_feature(leak_sanitizer) || __has_feature(address_sanitizer) // Chrome had issues if we tried to include lsan_interface.h ourselves. // https://github.com/llvm/llvm-project/blob/10a35632d55bb05004fe3d0c2d4432bb74897ee7/compiler-rt/include/sanitizer/lsan_interface.h#L26 extern "C" { void __lsan_ignore_object(const void *p); } #define SK_INTENTIONALLY_LEAKED … #else #define SK_INTENTIONALLY_LEAKED(X) … #endif #else #define SK_INTENTIONALLY_LEAKED … #endif #define SK_INIT_TO_AVOID_WARNING … //////////////////////////////////////////////////////////////////////////////// /** * Defines overloaded bitwise operators to make it easier to use an enum as a * bitfield. */ #define SK_MAKE_BITFIELD_OPS(X) … #define SK_DECL_BITFIELD_OPS_FRIENDS(X) … /** * Wraps a C++11 enum that we use as a bitfield, and enables a limited amount of * masking with type safety. Instantiated with the ~ operator. */ template<typename TFlags> class SkTFlagsMask { … }; /** * Defines bitwise operators that make it possible to use an enum class as a * basic bitfield. */ #define SK_MAKE_BITFIELD_CLASS_OPS(X) … \ #define SK_DECL_BITFIELD_CLASS_OPS_FRIENDS(X) … #endif // SkMacros_DEFINED
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