Add SymbolicConstantsMach and its test

util/mach/symbolic_constants_mach.h

+// Copyright 2014 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef CRASHPAD_UTIL_MACH_SYMBOLIC_CONSTANTS_MACH_H_
+#define CRASHPAD_UTIL_MACH_SYMBOLIC_CONSTANTS_MACH_H_
+
+#include <mach/mach.h>
+
+#include <string>
+
+#include "base/strings/string_piece.h"
+#include "util/misc/symbolic_constants_common.h"
+
+namespace crashpad {
+
+//! \brief Converts a Mach exception value to a textual representation.
+//!
+//! \param[in] exception The Mach exception value to convert.
+//! \param[in] options Options affecting the conversion. ::kUseOr is ignored.
+//!     For ::kUnknownIsNumeric, the format is `"%d"`.
+//!
+//! \return The converted string.
+std::string ExceptionToString(exception_type_t exception,
+                              SymbolicConstantToStringOptions options);
+
+//! \brief Converts a string to its corresponding Mach exception value.
+//!
+//! \param[in] string The string to convert.
+//! \param[in] options Options affecting the conversion. ::kAllowOr is ignored.
+//! \param[out] exception The converted Mach exception value.
+//!
+//! \return `true` on success, `false` if \a string could not be converted as
+//!     requested.
+bool StringToException(const base::StringPiece& string,
+                       StringToSymbolicConstantOptions options,
+                       exception_type_t* exception);
+
+//! \brief Converts a Mach exception mask value to a textual representation.
+//!
+//! \param[in] exception_mask The Mach exception mask value to convert.
+//! \param[in] options Options affecting the conversion. ::kUseOr is honored.
+//!     For ::kUnknownIsNumeric, the format is `"%#x"`.
+//!
+//! \return The converted string.
+std::string ExceptionMaskToString(exception_mask_t exception_mask,
+                                  SymbolicConstantToStringOptions options);
+
+//! \brief Converts a string to its corresponding Mach exception mask value.
+//!
+//! \param[in] string The string to convert.
+//! \param[in] options Options affecting the conversion. ::kAllowOr is honored.
+//! \param[out] exception_mask The converted Mach exception mask value.
+//!
+//! \return `true` on success, `false` if \a string could not be converted as
+//!     requested.
+bool StringToExceptionMask(const base::StringPiece& string,
+                           StringToSymbolicConstantOptions options,
+                           exception_mask_t* exception_mask);
+
+//! \brief Converts a Mach exception behavior value to a textual representation.
+//!
+//! \param[in] behavior The Mach exception behavior value to convert.
+//! \param[in] options Options affecting the conversion. ::kUseOr is ignored.
+//!     `MACH_EXCEPTION_CODES` can always be ORed in, but no other values can be
+//!     ORed with each other. For ::kUnknownIsNumeric, the format is `"%#x"`.
+//!
+//! \return The converted string.
+std::string ExceptionBehaviorToString(exception_behavior_t behavior,
+                                      SymbolicConstantToStringOptions options);
+
+//! \brief Converts a string to its corresponding Mach exception behavior value.
+//!
+//! \param[in] string The string to convert.
+//! \param[in] options Options affecting the conversion. ::kAllowOr is ignored.
+//!     `MACH_EXCEPTION_CODES` can always be ORed in, but no other values can be
+//!     ORed with each other.
+//! \param[out] behavior The converted Mach exception behavior value.
+//!
+//! \return `true` on success, `false` if \a string could not be converted as
+//!     requested.
+bool StringToExceptionBehavior(const base::StringPiece& string,
+                               StringToSymbolicConstantOptions options,
+                               exception_behavior_t* behavior);
+
+//! \brief Converts a thread state flavor value to a textual representation.
+//!
+//! \param[in] flavor The thread state flavor value to convert.
+//! \param[in] options Options affecting the conversion. ::kUseOr is ignored.
+//!     For ::kUnknownIsNumeric, the format is `"%d"`.
+//!
+//! \return The converted string.
+std::string ThreadStateFlavorToString(thread_state_flavor_t flavor,
+                                      SymbolicConstantToStringOptions options);
+
+//! \brief Converts a string to its corresponding thread state flavor value.
+//!
+//! \param[in] string The string to convert.
+//! \param[in] options Options affecting the conversion. ::kAllowOr is ignored.
+//! \param[out] flavor The converted thread state flavor value.
+//!
+//! \return `true` on success, `false` if \a string could not be converted as
+//!     requested.
+bool StringToThreadStateFlavor(const base::StringPiece& string,
+                               StringToSymbolicConstantOptions options,
+                               thread_state_flavor_t* flavor);
+
+}  // namespace crashpad
+
+#endif  // CRASHPAD_UTIL_MACH_SYMBOLIC_CONSTANTS_MACH_H_