forked from OSchip/llvm-project
81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
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//===------- SourceInfo.h - Target independent OpenMP target RTL -- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Methods used to describe source information in target regions
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//
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//===----------------------------------------------------------------------===//
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#ifndef _SOURCE_INFO_H_
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#define _SOURCE_INFO_H_
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#include <string>
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#ifdef _WIN32
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static const bool OS_WINDOWS = true;
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#else
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static const bool OS_WINDOWS = false;
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#endif
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/// Type alias for source location information for variable mappings with
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/// data layout ";name;filename;row;col;;\0" from clang.
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using map_var_info_t = void *;
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/// Struct to hold source individual location information.
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class SourceInfo {
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/// Underlying string copy of the original source information.
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const std::string str;
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std::string initStr(const map_var_info_t name) {
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if (!name)
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return ";unknown;unknown;0;0;;";
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else
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return std::string(reinterpret_cast<const char *>(name));
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}
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/// Get n-th substring in an expression separated by ;.
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std::string getSubstring(const int n) {
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std::size_t begin = str.find(';');
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std::size_t end = str.find(';', begin + 1);
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for (int i = 0; i < n; i++) {
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begin = end;
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end = str.find(';', begin + 1);
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}
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return str.substr(begin + 1, end - begin - 1);
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};
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/// Get the filename from a full path.
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std::string removePath(const std::string &path) {
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std::size_t pos = (OS_WINDOWS) ? path.rfind('\\') : path.rfind('/');
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return path.substr(pos + 1);
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};
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public:
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SourceInfo(const map_var_info_t name)
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: str(initStr(name)), name(getSubstring(0)),
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filename(removePath(getSubstring(1))), line(std::stoi(getSubstring(2))),
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column(std::stoi(getSubstring(3))) {}
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const std::string name;
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const std::string filename;
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const int32_t line;
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const int32_t column;
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};
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/// Standalone function for getting the variable name of a mapping.
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static inline std::string getNameFromMapping(const map_var_info_t name) {
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if (!name)
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return "unknown";
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const std::string name_str(reinterpret_cast<const char *>(name));
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std::size_t begin = name_str.find(';');
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std::size_t end = name_str.find(';', begin + 1);
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return name_str.substr(begin + 1, end - begin - 1);
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}
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#endif
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