1dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer//===-- PathV2.cpp - Implement OS Path Concept ------------------*- C++ -*-===// 2dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer// 3dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer// The LLVM Compiler Infrastructure 4dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer// 5dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer// This file is distributed under the University of Illinois Open Source 6dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer// License. See LICENSE.TXT for details. 7dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer// 8dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer//===----------------------------------------------------------------------===// 9dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer// 10dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer// This file implements the operating system PathV2 API. 11dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer// 12dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer//===----------------------------------------------------------------------===// 13dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 14dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#include "llvm/Support/PathV2.h" 15bee0c38f595f52d424161dc1db9c0bfe61421957Michael J. Spencer#include "llvm/Support/FileSystem.h" 165b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer#include "llvm/Support/Endian.h" 17dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#include "llvm/Support/ErrorHandling.h" 18dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#include <cctype> 19628467ef1f230e40ee00626ddfdcc7ca77b45a11Michael J. Spencer#include <cstdio> 20628467ef1f230e40ee00626ddfdcc7ca77b45a11Michael J. Spencer#include <cstring> 21dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 22dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencernamespace { 23dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer using llvm::StringRef; 2463cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan using llvm::sys::path::is_separator; 25dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 26dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#ifdef LLVM_ON_WIN32 2780fd2a1972fa1955cdea1bf2a37b47659331870cBenjamin Kramer const char *separators = "\\/"; 2880fd2a1972fa1955cdea1bf2a37b47659331870cBenjamin Kramer const char prefered_separator = '\\'; 29dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#else 3080fd2a1972fa1955cdea1bf2a37b47659331870cBenjamin Kramer const char separators = '/'; 3180fd2a1972fa1955cdea1bf2a37b47659331870cBenjamin Kramer const char prefered_separator = '/'; 32dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#endif 33dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 347fb866643e76dc598473b666439a42a11d97a58cBenjamin Kramer StringRef find_first_component(StringRef path) { 35dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Look for this first component in the following order. 36dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // * empty (in this case we return an empty string) 37dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // * either C: or {//,\\}net. 38dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // * {/,\} 39dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // * {.,..} 40dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // * {file,directory}name 41dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 42dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (path.empty()) 43dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer return path; 44dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 45ca3a339d767882ef726d898d29f06bc94568c701Michael J. Spencer#ifdef LLVM_ON_WIN32 46dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // C: 47dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (path.size() >= 2 && std::isalpha(path[0]) && path[1] == ':') 483ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer return path.substr(0, 2); 49ca3a339d767882ef726d898d29f06bc94568c701Michael J. Spencer#endif 50dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 51dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // //net 52dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if ((path.size() > 2) && 53ca3a339d767882ef726d898d29f06bc94568c701Michael J. Spencer is_separator(path[0]) && 54ca3a339d767882ef726d898d29f06bc94568c701Michael J. Spencer path[0] == path[1] && 55ca3a339d767882ef726d898d29f06bc94568c701Michael J. Spencer !is_separator(path[2])) { 56dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Find the next directory separator. 57ca3a339d767882ef726d898d29f06bc94568c701Michael J. Spencer size_t end = path.find_first_of(separators, 2); 583ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer return path.substr(0, end); 59dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 60dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 61dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // {/,\} 62ca3a339d767882ef726d898d29f06bc94568c701Michael J. Spencer if (is_separator(path[0])) 633ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer return path.substr(0, 1); 64dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 65dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (path.startswith("..")) 663ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer return path.substr(0, 2); 67dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 68dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (path[0] == '.') 693ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer return path.substr(0, 1); 70dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 71dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // * {file,directory}name 72ca3a339d767882ef726d898d29f06bc94568c701Michael J. Spencer size_t end = path.find_first_of(separators, 2); 733ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer return path.substr(0, end); 74dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 75a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 76d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramer size_t filename_pos(StringRef str) { 77a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer if (str.size() == 2 && 78a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer is_separator(str[0]) && 79ca3a339d767882ef726d898d29f06bc94568c701Michael J. Spencer str[0] == str[1]) 80a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return 0; 81a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 82a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer if (str.size() > 0 && is_separator(str[str.size() - 1])) 83a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return str.size() - 1; 84a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 85a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer size_t pos = str.find_last_of(separators, str.size() - 1); 86a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 87a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer#ifdef LLVM_ON_WIN32 88a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer if (pos == StringRef::npos) 89a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer pos = str.find_last_of(':', str.size() - 2); 90a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer#endif 91a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 92a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer if (pos == StringRef::npos || 93a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer (pos == 1 && is_separator(str[0]))) 94a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return 0; 95a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 96a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return pos + 1; 97a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer } 98a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 99d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramer size_t root_dir_start(StringRef str) { 100a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer // case "c:/" 101a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer#ifdef LLVM_ON_WIN32 102a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer if (str.size() > 2 && 103a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer str[1] == ':' && 104a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer is_separator(str[2])) 105a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return 2; 106a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer#endif 107a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 108a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer // case "//" 109a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer if (str.size() == 2 && 110a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer is_separator(str[0]) && 111a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer str[0] == str[1]) 112a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return StringRef::npos; 113a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 114a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer // case "//net" 115a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer if (str.size() > 3 && 116a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer is_separator(str[0]) && 117a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer str[0] == str[1] && 118a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer !is_separator(str[2])) { 119a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return str.find_first_of(separators, 2); 120a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer } 121a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 122a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer // case "/" 123a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer if (str.size() > 0 && is_separator(str[0])) 124a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return 0; 125a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 126a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return StringRef::npos; 127a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer } 128a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 129d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramer size_t parent_path_end(StringRef path) { 130a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer size_t end_pos = filename_pos(path); 131a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 132a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer bool filename_was_sep = path.size() > 0 && is_separator(path[end_pos]); 133a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 134a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer // Skip separators except for root dir. 1353ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer size_t root_dir_pos = root_dir_start(path.substr(0, end_pos)); 136a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 137a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer while(end_pos > 0 && 138a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer (end_pos - 1) != root_dir_pos && 139a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer is_separator(path[end_pos - 1])) 140a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer --end_pos; 141a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 142a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer if (end_pos == 1 && root_dir_pos == 0 && filename_was_sep) 143a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return StringRef::npos; 144a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 145a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return end_pos; 146a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer } 14763cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan} // end unnamed namespace 148dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 149dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencernamespace llvm { 150dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencernamespace sys { 151dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencernamespace path { 152dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 153d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramerconst_iterator begin(StringRef path) { 154dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer const_iterator i; 155dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer i.Path = path; 156dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer i.Component = find_first_component(path); 157dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer i.Position = 0; 158dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer return i; 159dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer} 160dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 161d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramerconst_iterator end(StringRef path) { 162dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer const_iterator i; 163dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer i.Path = path; 164dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer i.Position = path.size(); 165dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer return i; 166dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer} 167dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 168dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencerconst_iterator &const_iterator::operator++() { 169dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer assert(Position < Path.size() && "Tried to increment past end!"); 170dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 171dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Increment Position to past the current component 172dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer Position += Component.size(); 173dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 174dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Check for end. 175dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (Position == Path.size()) { 176dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer Component = StringRef(); 177dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer return *this; 178dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 179dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 180dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Both POSIX and Windows treat paths that begin with exactly two separators 181dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // specially. 182dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer bool was_net = Component.size() > 2 && 183dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer is_separator(Component[0]) && 184dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer Component[1] == Component[0] && 185dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer !is_separator(Component[2]); 186dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 187dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Handle separators. 188dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (is_separator(Path[Position])) { 189dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Root dir. 190dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (was_net 191dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#ifdef LLVM_ON_WIN32 192dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // c:/ 193dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer || Component.endswith(":") 194dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#endif 195dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer ) { 1963ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer Component = Path.substr(Position, 1); 197dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer return *this; 198dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 199dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 200dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Skip extra separators. 201dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer while (Position != Path.size() && 202dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer is_separator(Path[Position])) { 203dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer ++Position; 204dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 205dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 206dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Treat trailing '/' as a '.'. 207dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (Position == Path.size()) { 208dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer --Position; 209dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer Component = "."; 210dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer return *this; 211dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 212dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 213dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 214dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Find next component. 215dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer size_t end_pos = Path.find_first_of(separators, Position); 2163ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer Component = Path.slice(Position, end_pos); 217dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 218dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer return *this; 219dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer} 220dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 221a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencerconst_iterator &const_iterator::operator--() { 222a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer // If we're at the end and the previous char was a '/', return '.'. 223a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer if (Position == Path.size() && 224a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer Path.size() > 1 && 225a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer is_separator(Path[Position - 1]) 226a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer#ifdef LLVM_ON_WIN32 227a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer && Path[Position - 2] != ':' 228a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer#endif 229a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer ) { 230a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer --Position; 231a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer Component = "."; 232a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return *this; 233a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer } 234a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 235a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer // Skip separators unless it's the root directory. 236a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer size_t root_dir_pos = root_dir_start(Path); 237a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer size_t end_pos = Position; 238a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 239a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer while(end_pos > 0 && 240a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer (end_pos - 1) != root_dir_pos && 241a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer is_separator(Path[end_pos - 1])) 242a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer --end_pos; 243a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 244a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer // Find next separator. 2453ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer size_t start_pos = filename_pos(Path.substr(0, end_pos)); 2463ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer Component = Path.slice(start_pos, end_pos); 247a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer Position = start_pos; 248a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return *this; 249a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer} 250a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 251dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencerbool const_iterator::operator==(const const_iterator &RHS) const { 252dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer return Path.begin() == RHS.Path.begin() && 253dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer Position == RHS.Position; 254dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer} 255dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 256dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencerbool const_iterator::operator!=(const const_iterator &RHS) const { 257dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer return !(*this == RHS); 258dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer} 259dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 260a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencerptrdiff_t const_iterator::operator-(const const_iterator &RHS) const { 261a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer return Position - RHS.Position; 262a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer} 263a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 264d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramerconst StringRef root_path(StringRef path) { 265dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer const_iterator b = begin(path), 266dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer pos = b, 267dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer e = end(path); 268dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (b != e) { 269dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer bool has_net = b->size() > 2 && is_separator((*b)[0]) && (*b)[1] == (*b)[0]; 270dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer bool has_drive = 271dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#ifdef LLVM_ON_WIN32 272dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer b->endswith(":"); 273dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#else 274dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer false; 275dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#endif 276dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 277dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (has_net || has_drive) { 278dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if ((++pos != e) && is_separator((*pos)[0])) { 279dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // {C:/,//net/}, so get the first two components. 2803ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer return path.substr(0, b->size() + pos->size()); 281dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } else { 282dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // just {C:,//net}, return the first component. 2835029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return *b; 284dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 285dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 286dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 287dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // POSIX style root directory. 288dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (is_separator((*b)[0])) { 2895029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return *b; 290dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 291dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 292dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 2935029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return StringRef(); 294dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer} 295dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 296d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramerconst StringRef root_name(StringRef path) { 297dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer const_iterator b = begin(path), 298dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer e = end(path); 299dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (b != e) { 300dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer bool has_net = b->size() > 2 && is_separator((*b)[0]) && (*b)[1] == (*b)[0]; 301dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer bool has_drive = 302dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#ifdef LLVM_ON_WIN32 303dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer b->endswith(":"); 304dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#else 305dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer false; 306dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#endif 307dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 308dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (has_net || has_drive) { 309dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // just {C:,//net}, return the first component. 3105029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return *b; 311dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 312dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 313dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 314dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // No path or no name. 3155029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return StringRef(); 316dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer} 317dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 318d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramerconst StringRef root_directory(StringRef path) { 319dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer const_iterator b = begin(path), 320dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer pos = b, 321dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer e = end(path); 322dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (b != e) { 323dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer bool has_net = b->size() > 2 && is_separator((*b)[0]) && (*b)[1] == (*b)[0]; 324dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer bool has_drive = 325dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#ifdef LLVM_ON_WIN32 326dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer b->endswith(":"); 327dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#else 328dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer false; 329dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#endif 330dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 331dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if ((has_net || has_drive) && 332dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // {C:,//net}, skip to the next component. 333dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer (++pos != e) && is_separator((*pos)[0])) { 3345029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return *pos; 335dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 336dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 337dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // POSIX style root directory. 338dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (!has_net && is_separator((*b)[0])) { 3395029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return *b; 340dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 341dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 342dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 343dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // No path or no root. 3445029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return StringRef(); 345dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer} 346dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 347d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramerconst StringRef relative_path(StringRef path) { 3485029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer StringRef root = root_path(path); 349d0fff1886cbace4e663761f2c26dc0a5eed2b6b1Michael J. Spencer return path.substr(root.size()); 350dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer} 351dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 352936671b2eaa0a6b27903f8d85a8f4b28fcf8ee84Michael J. Spencervoid append(SmallVectorImpl<char> &path, const Twine &a, 353936671b2eaa0a6b27903f8d85a8f4b28fcf8ee84Michael J. Spencer const Twine &b, 354936671b2eaa0a6b27903f8d85a8f4b28fcf8ee84Michael J. Spencer const Twine &c, 355936671b2eaa0a6b27903f8d85a8f4b28fcf8ee84Michael J. Spencer const Twine &d) { 356dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer SmallString<32> a_storage; 357dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer SmallString<32> b_storage; 358dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer SmallString<32> c_storage; 359dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer SmallString<32> d_storage; 360dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 361dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer SmallVector<StringRef, 4> components; 362dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (!a.isTriviallyEmpty()) components.push_back(a.toStringRef(a_storage)); 363dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (!b.isTriviallyEmpty()) components.push_back(b.toStringRef(b_storage)); 364dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (!c.isTriviallyEmpty()) components.push_back(c.toStringRef(c_storage)); 365dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (!d.isTriviallyEmpty()) components.push_back(d.toStringRef(d_storage)); 366dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 367dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer for (SmallVectorImpl<StringRef>::const_iterator i = components.begin(), 368dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer e = components.end(); 369dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer i != e; ++i) { 370dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer bool path_has_sep = !path.empty() && is_separator(path[path.size() - 1]); 371dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer bool component_has_sep = !i->empty() && is_separator((*i)[0]); 3725029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer bool is_root_name = has_root_name(*i); 373dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 374dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer if (path_has_sep) { 375dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Strip separators from beginning of component. 376dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer size_t loc = i->find_first_not_of(separators); 3773ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer StringRef c = i->substr(loc); 378dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 379dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Append it. 380dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer path.append(c.begin(), c.end()); 381dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer continue; 382dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 383dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 384f150e7695e32d42856d86499fcde970825371637Michael J. Spencer if (!component_has_sep && !(path.empty() || is_root_name)) { 385dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer // Add a separator. 386dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer path.push_back(prefered_separator); 387dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 388dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 389dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer path.append(i->begin(), i->end()); 390dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer } 391dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer} 392dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 3936e31b9b8c36c6dc1ed2bf9d47d9e04f1af17d0f4Argyrios Kyrtzidisvoid append(SmallVectorImpl<char> &path, 3946e31b9b8c36c6dc1ed2bf9d47d9e04f1af17d0f4Argyrios Kyrtzidis const_iterator begin, const_iterator end) { 3956e31b9b8c36c6dc1ed2bf9d47d9e04f1af17d0f4Argyrios Kyrtzidis for (; begin != end; ++begin) 3966e31b9b8c36c6dc1ed2bf9d47d9e04f1af17d0f4Argyrios Kyrtzidis path::append(path, *begin); 3976e31b9b8c36c6dc1ed2bf9d47d9e04f1af17d0f4Argyrios Kyrtzidis} 3986e31b9b8c36c6dc1ed2bf9d47d9e04f1af17d0f4Argyrios Kyrtzidis 399d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramerconst StringRef parent_path(StringRef path) { 400a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer size_t end_pos = parent_path_end(path); 401a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer if (end_pos == StringRef::npos) 4025029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return StringRef(); 403a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer else 4043ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer return path.substr(0, end_pos); 405a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer} 406a42cf73c779fe4210cedce0a7a0b2ada2085b55bMichael J. Spencer 407936671b2eaa0a6b27903f8d85a8f4b28fcf8ee84Michael J. Spencervoid remove_filename(SmallVectorImpl<char> &path) { 408dbfb56bebdb279a2a94096a821d3b7d3345962c2Michael J. Spencer size_t end_pos = parent_path_end(StringRef(path.begin(), path.size())); 409936671b2eaa0a6b27903f8d85a8f4b28fcf8ee84Michael J. Spencer if (end_pos != StringRef::npos) 410936671b2eaa0a6b27903f8d85a8f4b28fcf8ee84Michael J. Spencer path.set_size(end_pos); 411dbfb56bebdb279a2a94096a821d3b7d3345962c2Michael J. Spencer} 412dbfb56bebdb279a2a94096a821d3b7d3345962c2Michael J. Spencer 4135029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencervoid replace_extension(SmallVectorImpl<char> &path, const Twine &extension) { 41452ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer StringRef p(path.begin(), path.size()); 41552ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer SmallString<32> ext_storage; 41652ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer StringRef ext = extension.toStringRef(ext_storage); 41752ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer 41852ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer // Erase existing extension. 41952ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer size_t pos = p.find_last_of('.'); 42052ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer if (pos != StringRef::npos && pos >= filename_pos(p)) 42152ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer path.set_size(pos); 42252ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer 42352ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer // Append '.' if needed. 42452ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer if (ext.size() > 0 && ext[0] != '.') 42552ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer path.push_back('.'); 42652ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer 42752ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer // Append extension. 42852ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer path.append(ext.begin(), ext.end()); 42952ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer} 43052ed867801b3ddb5569b7f823e63555e9c322c99Michael J. Spencer 431936671b2eaa0a6b27903f8d85a8f4b28fcf8ee84Michael J. Spencervoid native(const Twine &path, SmallVectorImpl<char> &result) { 432722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer // Clear result. 433fbd1bbd7fa0ca592d09edea557806da05084a432Michael J. Spencer result.clear(); 434722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer#ifdef LLVM_ON_WIN32 435722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer SmallString<128> path_storage; 436722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer StringRef p = path.toStringRef(path_storage); 437722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer result.reserve(p.size()); 438722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer for (StringRef::const_iterator i = p.begin(), 439722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer e = p.end(); 440722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer i != e; 441722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer ++i) { 442722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer if (*i == '/') 443722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer result.push_back('\\'); 444722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer else 445722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer result.push_back(*i); 446722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer } 447722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer#else 448722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer path.toVector(result); 449722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer#endif 450722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer} 451722d5adac1c3af88e785088eda594c7f656e9ed8Michael J. Spencer 452d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramerconst StringRef filename(StringRef path) { 4535029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return *(--end(path)); 454a9793559942dd055d460f8e3d438b49889eb4f5cMichael J. Spencer} 455a9793559942dd055d460f8e3d438b49889eb4f5cMichael J. Spencer 456d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramerconst StringRef stem(StringRef path) { 4575029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer StringRef fname = filename(path); 45834ab1f6087bc0da1df0e3a73ac99762ef070d419Michael J. Spencer size_t pos = fname.find_last_of('.'); 45934ab1f6087bc0da1df0e3a73ac99762ef070d419Michael J. Spencer if (pos == StringRef::npos) 4605029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return fname; 46134ab1f6087bc0da1df0e3a73ac99762ef070d419Michael J. Spencer else 46234ab1f6087bc0da1df0e3a73ac99762ef070d419Michael J. Spencer if ((fname.size() == 1 && fname == ".") || 46334ab1f6087bc0da1df0e3a73ac99762ef070d419Michael J. Spencer (fname.size() == 2 && fname == "..")) 4645029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return fname; 46534ab1f6087bc0da1df0e3a73ac99762ef070d419Michael J. Spencer else 4663ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer return fname.substr(0, pos); 46734ab1f6087bc0da1df0e3a73ac99762ef070d419Michael J. Spencer} 46834ab1f6087bc0da1df0e3a73ac99762ef070d419Michael J. Spencer 469d53f3c864bf94d158a2ae677fe92fd41afaec2f3Benjamin Kramerconst StringRef extension(StringRef path) { 4705029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer StringRef fname = filename(path); 4715265f22f4558f376dece4744b3fe2ae1c637d223Michael J. Spencer size_t pos = fname.find_last_of('.'); 4725265f22f4558f376dece4744b3fe2ae1c637d223Michael J. Spencer if (pos == StringRef::npos) 4735029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return StringRef(); 4745265f22f4558f376dece4744b3fe2ae1c637d223Michael J. Spencer else 4755265f22f4558f376dece4744b3fe2ae1c637d223Michael J. Spencer if ((fname.size() == 1 && fname == ".") || 4765265f22f4558f376dece4744b3fe2ae1c637d223Michael J. Spencer (fname.size() == 2 && fname == "..")) 4775029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return StringRef(); 4785265f22f4558f376dece4744b3fe2ae1c637d223Michael J. Spencer else 4793ce88c92905c173e39e9ae29c53d0755504a76f6Benjamin Kramer return fname.substr(pos); 4805265f22f4558f376dece4744b3fe2ae1c637d223Michael J. Spencer} 4815265f22f4558f376dece4744b3fe2ae1c637d223Michael J. Spencer 48263cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wanbool is_separator(char value) { 48363cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan switch(value) { 48463cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan#ifdef LLVM_ON_WIN32 48563cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan case '\\': // fall through 48663cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan#endif 48763cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan case '/': return true; 48863cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan default: return false; 48963cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan } 49063cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan} 49163cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan 49255cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregorvoid system_temp_directory(bool erasedOnReboot, SmallVectorImpl<char> &result) { 49355cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor result.clear(); 494faebf11a3468767bb702b8e9fca98237f1d3a126Michael J. Spencer 49555cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor // Check whether the temporary directory is specified by an environment 49655cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor // variable. 49755cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor const char *EnvironmentVariable; 49855cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor#ifdef LLVM_ON_WIN32 49955cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor EnvironmentVariable = "TEMP"; 50055cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor#else 50155cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor EnvironmentVariable = "TMPDIR"; 50255cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor#endif 50355cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor if (char *RequestedDir = getenv(EnvironmentVariable)) { 50455cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor result.append(RequestedDir, RequestedDir + strlen(RequestedDir)); 50555cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor return; 50655cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor } 507faebf11a3468767bb702b8e9fca98237f1d3a126Michael J. Spencer 50855cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor // Fall back to a system default. 50955cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor const char *DefaultResult; 51055cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor#ifdef LLVM_ON_WIN32 51155cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor (void)erasedOnReboot; 512d26d6b68dd5ad6cea00331182d70432e4bac3393Douglas Gregor DefaultResult = "C:\\TEMP"; 51355cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor#else 51455cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor if (erasedOnReboot) 51555cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor DefaultResult = "/tmp"; 51655cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor else 51755cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor DefaultResult = "/var/tmp"; 51855cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor#endif 51955cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor result.append(DefaultResult, DefaultResult + strlen(DefaultResult)); 52055cf815e19691d8a1cda40a331943ebfee9d7255Douglas Gregor} 521faebf11a3468767bb702b8e9fca98237f1d3a126Michael J. Spencer 52212ccf67457cddc7841bd23bae342994a21d25eb0Michael J. Spencerbool has_root_name(const Twine &path) { 523ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer SmallString<128> path_storage; 524ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer StringRef p = path.toStringRef(path_storage); 525ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 5265029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return !root_name(p).empty(); 527ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer} 528ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 52912ccf67457cddc7841bd23bae342994a21d25eb0Michael J. Spencerbool has_root_directory(const Twine &path) { 530ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer SmallString<128> path_storage; 531ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer StringRef p = path.toStringRef(path_storage); 532ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 5335029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return !root_directory(p).empty(); 534ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer} 535ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 53612ccf67457cddc7841bd23bae342994a21d25eb0Michael J. Spencerbool has_root_path(const Twine &path) { 537ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer SmallString<128> path_storage; 538ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer StringRef p = path.toStringRef(path_storage); 539ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 5405029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return !root_path(p).empty(); 541ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer} 542ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 5432d484eb88d82aa53db509fca14f36ebe8f108706Michael J. Spencerbool has_relative_path(const Twine &path) { 5442d484eb88d82aa53db509fca14f36ebe8f108706Michael J. Spencer SmallString<128> path_storage; 5452d484eb88d82aa53db509fca14f36ebe8f108706Michael J. Spencer StringRef p = path.toStringRef(path_storage); 5462d484eb88d82aa53db509fca14f36ebe8f108706Michael J. Spencer 5472d484eb88d82aa53db509fca14f36ebe8f108706Michael J. Spencer return !relative_path(p).empty(); 5482d484eb88d82aa53db509fca14f36ebe8f108706Michael J. Spencer} 5492d484eb88d82aa53db509fca14f36ebe8f108706Michael J. Spencer 55012ccf67457cddc7841bd23bae342994a21d25eb0Michael J. Spencerbool has_filename(const Twine &path) { 551ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer SmallString<128> path_storage; 552ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer StringRef p = path.toStringRef(path_storage); 553ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 5545029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return !filename(p).empty(); 555ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer} 556ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 55712ccf67457cddc7841bd23bae342994a21d25eb0Michael J. Spencerbool has_parent_path(const Twine &path) { 558ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer SmallString<128> path_storage; 559ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer StringRef p = path.toStringRef(path_storage); 560ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 5615029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return !parent_path(p).empty(); 562ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer} 563ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 56412ccf67457cddc7841bd23bae342994a21d25eb0Michael J. Spencerbool has_stem(const Twine &path) { 565ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer SmallString<128> path_storage; 566ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer StringRef p = path.toStringRef(path_storage); 567ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 5685029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return !stem(p).empty(); 569ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer} 570ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 57112ccf67457cddc7841bd23bae342994a21d25eb0Michael J. Spencerbool has_extension(const Twine &path) { 572ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer SmallString<128> path_storage; 573ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer StringRef p = path.toStringRef(path_storage); 574ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 5755029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return !extension(p).empty(); 576ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer} 577ae18008584b5b38a44991bf7cdf02870f75c349aMichael J. Spencer 57812ccf67457cddc7841bd23bae342994a21d25eb0Michael J. Spencerbool is_absolute(const Twine &path) { 579ce2b68fb5444e712da14d214994c05bd231f221fMichael J. Spencer SmallString<128> path_storage; 580ce2b68fb5444e712da14d214994c05bd231f221fMichael J. Spencer StringRef p = path.toStringRef(path_storage); 581ce2b68fb5444e712da14d214994c05bd231f221fMichael J. Spencer 5825029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer bool rootDir = has_root_directory(p), 583ce2b68fb5444e712da14d214994c05bd231f221fMichael J. Spencer#ifdef LLVM_ON_WIN32 5845029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer rootName = has_root_name(p); 585ce2b68fb5444e712da14d214994c05bd231f221fMichael J. Spencer#else 5865029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer rootName = true; 587ce2b68fb5444e712da14d214994c05bd231f221fMichael J. Spencer#endif 588ce2b68fb5444e712da14d214994c05bd231f221fMichael J. Spencer 5895029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return rootDir && rootName; 590ce2b68fb5444e712da14d214994c05bd231f221fMichael J. Spencer} 591ce2b68fb5444e712da14d214994c05bd231f221fMichael J. Spencer 59212ccf67457cddc7841bd23bae342994a21d25eb0Michael J. Spencerbool is_relative(const Twine &path) { 5935029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer return !is_absolute(path); 594ce2b68fb5444e712da14d214994c05bd231f221fMichael J. Spencer} 595ce2b68fb5444e712da14d214994c05bd231f221fMichael J. Spencer 596bee0c38f595f52d424161dc1db9c0bfe61421957Michael J. Spencer} // end namespace path 597bee0c38f595f52d424161dc1db9c0bfe61421957Michael J. Spencer 598bee0c38f595f52d424161dc1db9c0bfe61421957Michael J. Spencernamespace fs { 599bee0c38f595f52d424161dc1db9c0bfe61421957Michael J. Spencer 600ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencererror_code make_absolute(SmallVectorImpl<char> &path) { 601ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer StringRef p(path.data(), path.size()); 602ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer 603d1d721660edf3f4e76ea69fd5579f857b97a3150Daniel Dunbar bool rootDirectory = path::has_root_directory(p), 604d1d721660edf3f4e76ea69fd5579f857b97a3150Daniel Dunbar#ifdef LLVM_ON_WIN32 60595fe7b9b7251d33ad4128603087edac70cec7c72Daniel Dunbar rootName = path::has_root_name(p); 606d1d721660edf3f4e76ea69fd5579f857b97a3150Daniel Dunbar#else 607d1d721660edf3f4e76ea69fd5579f857b97a3150Daniel Dunbar rootName = true; 608d1d721660edf3f4e76ea69fd5579f857b97a3150Daniel Dunbar#endif 609ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer 610ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer // Already absolute. 611ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer if (rootName && rootDirectory) 61258604cd944eec4a75046076cb53eb708aaf2ee09David Blaikie return error_code::success(); 613ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer 614ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer // All of the following conditions will need the current directory. 615ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer SmallString<128> current_dir; 616ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer if (error_code ec = current_path(current_dir)) return ec; 617ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer 618ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer // Relative path. Prepend the current directory. 619ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer if (!rootName && !rootDirectory) { 620ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer // Append path to the current directory. 621936671b2eaa0a6b27903f8d85a8f4b28fcf8ee84Michael J. Spencer path::append(current_dir, p); 622ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer // Set path to the result. 623ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer path.swap(current_dir); 62458604cd944eec4a75046076cb53eb708aaf2ee09David Blaikie return error_code::success(); 625ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer } 626ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer 627ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer if (!rootName && rootDirectory) { 6285029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer StringRef cdrn = path::root_name(current_dir); 629ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer SmallString<128> curDirRootName(cdrn.begin(), cdrn.end()); 630936671b2eaa0a6b27903f8d85a8f4b28fcf8ee84Michael J. Spencer path::append(curDirRootName, p); 631ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer // Set path to the result. 632ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer path.swap(curDirRootName); 63358604cd944eec4a75046076cb53eb708aaf2ee09David Blaikie return error_code::success(); 634ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer } 635ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer 636ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer if (rootName && !rootDirectory) { 6375029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer StringRef pRootName = path::root_name(p); 6385029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer StringRef bRootDirectory = path::root_directory(current_dir); 6395029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer StringRef bRelativePath = path::relative_path(current_dir); 6405029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer StringRef pRelativePath = path::relative_path(p); 641ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer 642ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer SmallString<128> res; 643936671b2eaa0a6b27903f8d85a8f4b28fcf8ee84Michael J. Spencer path::append(res, pRootName, bRootDirectory, bRelativePath, pRelativePath); 644ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer path.swap(res); 64558604cd944eec4a75046076cb53eb708aaf2ee09David Blaikie return error_code::success(); 646ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer } 647ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer 648ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer llvm_unreachable("All rootName and rootDirectory combinations should have " 649ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer "occurred above!"); 650ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer} 651ee271d8758c8493f2cadf5b9c0ec57431565891bMichael J. Spencer 652b83769f36afe5221ca6aa7741561801836a179cbMichael J. Spencererror_code create_directories(const Twine &path, bool &existed) { 653b83769f36afe5221ca6aa7741561801836a179cbMichael J. Spencer SmallString<128> path_storage; 654b83769f36afe5221ca6aa7741561801836a179cbMichael J. Spencer StringRef p = path.toStringRef(path_storage); 655b83769f36afe5221ca6aa7741561801836a179cbMichael J. Spencer 6565029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer StringRef parent = path::parent_path(p); 65755f43d6b7e3ad1f08f5392205ab0feabf4c9933dMichael J. Spencer if (!parent.empty()) { 65855f43d6b7e3ad1f08f5392205ab0feabf4c9933dMichael J. Spencer bool parent_exists; 65955f43d6b7e3ad1f08f5392205ab0feabf4c9933dMichael J. Spencer if (error_code ec = fs::exists(parent, parent_exists)) return ec; 6605029159fbe7c267c9322fc6c38064e9ab2ce91bcMichael J. Spencer 66155f43d6b7e3ad1f08f5392205ab0feabf4c9933dMichael J. Spencer if (!parent_exists) 66255f43d6b7e3ad1f08f5392205ab0feabf4c9933dMichael J. Spencer if (error_code ec = create_directories(parent, existed)) return ec; 66355f43d6b7e3ad1f08f5392205ab0feabf4c9933dMichael J. Spencer } 664b83769f36afe5221ca6aa7741561801836a179cbMichael J. Spencer 665b83769f36afe5221ca6aa7741561801836a179cbMichael J. Spencer return create_directory(p, existed); 666b83769f36afe5221ca6aa7741561801836a179cbMichael J. Spencer} 667b83769f36afe5221ca6aa7741561801836a179cbMichael J. Spencer 66861187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencerbool exists(file_status status) { 66961187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer return status_known(status) && status.type() != file_type::file_not_found; 67061187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer} 67161187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer 67261187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencerbool status_known(file_status s) { 67361187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer return s.type() != file_type::status_error; 67461187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer} 67561187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer 67661187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencerbool is_directory(file_status status) { 67761187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer return status.type() == file_type::directory_file; 67861187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer} 67961187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer 680218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencererror_code is_directory(const Twine &path, bool &result) { 681218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer file_status st; 682218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer if (error_code ec = status(path, st)) 683218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer return ec; 684218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer result = is_directory(st); 68558604cd944eec4a75046076cb53eb708aaf2ee09David Blaikie return error_code::success(); 686218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer} 687218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer 68861187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencerbool is_regular_file(file_status status) { 68961187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer return status.type() == file_type::regular_file; 69061187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer} 69161187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer 692218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencererror_code is_regular_file(const Twine &path, bool &result) { 693218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer file_status st; 694218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer if (error_code ec = status(path, st)) 695218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer return ec; 696218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer result = is_regular_file(st); 69758604cd944eec4a75046076cb53eb708aaf2ee09David Blaikie return error_code::success(); 698218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer} 699218dc3e2fe54c28b0292a3e89c5ed6563f62ac23Michael J. Spencer 70061187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencerbool is_symlink(file_status status) { 70161187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer return status.type() == file_type::symlink_file; 70261187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer} 70361187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer 7049df536ca7873af6dd9d9ca4aa6cea2872de5c028Michael J. Spencererror_code is_symlink(const Twine &path, bool &result) { 7059df536ca7873af6dd9d9ca4aa6cea2872de5c028Michael J. Spencer file_status st; 7069df536ca7873af6dd9d9ca4aa6cea2872de5c028Michael J. Spencer if (error_code ec = status(path, st)) 7079df536ca7873af6dd9d9ca4aa6cea2872de5c028Michael J. Spencer return ec; 7089df536ca7873af6dd9d9ca4aa6cea2872de5c028Michael J. Spencer result = is_symlink(st); 70958604cd944eec4a75046076cb53eb708aaf2ee09David Blaikie return error_code::success(); 7109df536ca7873af6dd9d9ca4aa6cea2872de5c028Michael J. Spencer} 7119df536ca7873af6dd9d9ca4aa6cea2872de5c028Michael J. Spencer 71261187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencerbool is_other(file_status status) { 71361187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer return exists(status) && 71461187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer !is_regular_file(status) && 71561187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer !is_directory(status) && 71661187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer !is_symlink(status); 71761187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer} 71861187dd0ad3d8574f655074e3e7948193d90bb1eMichael J. Spencer 719357b5718411c4a15427d69590651fb8103ae7ba9Benjamin Kramervoid directory_entry::replace_filename(const Twine &filename, file_status st) { 720753cbbbd3ce28253f381caff83ce2a7f6e08785bMichael J. Spencer SmallString<128> path(Path.begin(), Path.end()); 721753cbbbd3ce28253f381caff83ce2a7f6e08785bMichael J. Spencer path::remove_filename(path); 722753cbbbd3ce28253f381caff83ce2a7f6e08785bMichael J. Spencer path::append(path, filename); 723753cbbbd3ce28253f381caff83ce2a7f6e08785bMichael J. Spencer Path = path.str(); 724753cbbbd3ce28253f381caff83ce2a7f6e08785bMichael J. Spencer Status = st; 725753cbbbd3ce28253f381caff83ce2a7f6e08785bMichael J. Spencer} 726753cbbbd3ce28253f381caff83ce2a7f6e08785bMichael J. Spencer 727628467ef1f230e40ee00626ddfdcc7ca77b45a11Michael J. Spencererror_code has_magic(const Twine &path, const Twine &magic, bool &result) { 728628467ef1f230e40ee00626ddfdcc7ca77b45a11Michael J. Spencer SmallString<32> MagicStorage; 729b33594be3de0e73e0b79f5d9827228d58eef62faMichael J. Spencer StringRef Magic = magic.toStringRef(MagicStorage); 730b33594be3de0e73e0b79f5d9827228d58eef62faMichael J. Spencer SmallString<32> Buffer; 731b33594be3de0e73e0b79f5d9827228d58eef62faMichael J. Spencer 732b33594be3de0e73e0b79f5d9827228d58eef62faMichael J. Spencer if (error_code ec = get_magic(path, Magic.size(), Buffer)) { 733b33594be3de0e73e0b79f5d9827228d58eef62faMichael J. Spencer if (ec == errc::value_too_large) { 734b33594be3de0e73e0b79f5d9827228d58eef62faMichael J. Spencer // Magic.size() > file_size(Path). 735628467ef1f230e40ee00626ddfdcc7ca77b45a11Michael J. Spencer result = false; 73658604cd944eec4a75046076cb53eb708aaf2ee09David Blaikie return error_code::success(); 737628467ef1f230e40ee00626ddfdcc7ca77b45a11Michael J. Spencer } 738b33594be3de0e73e0b79f5d9827228d58eef62faMichael J. Spencer return ec; 739628467ef1f230e40ee00626ddfdcc7ca77b45a11Michael J. Spencer } 740628467ef1f230e40ee00626ddfdcc7ca77b45a11Michael J. Spencer 741b33594be3de0e73e0b79f5d9827228d58eef62faMichael J. Spencer result = Magic == Buffer; 74258604cd944eec4a75046076cb53eb708aaf2ee09David Blaikie return error_code::success(); 743628467ef1f230e40ee00626ddfdcc7ca77b45a11Michael J. Spencer} 744628467ef1f230e40ee00626ddfdcc7ca77b45a11Michael J. Spencer 7455b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer/// @brief Identify the magic in magic. 7465b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencerfile_magic identify_magic(StringRef magic) { 747b51c8e9bb5769ed17261392ff4222ad3a6668285Michael J. Spencer if (magic.size() < 4) 748b51c8e9bb5769ed17261392ff4222ad3a6668285Michael J. Spencer return file_magic::unknown; 7495b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer switch ((unsigned char)magic[0]) { 7505b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0xDE: // 0x0B17C0DE = BC wraper 7515b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic[1] == (char)0xC0 && magic[2] == (char)0x17 && 7525b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer magic[3] == (char)0x0B) 7535b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer return file_magic::bitcode; 7545b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer break; 7555b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 'B': 7565b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic[1] == 'C' && magic[2] == (char)0xC0 && magic[3] == (char)0xDE) 7575b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer return file_magic::bitcode; 7585b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer break; 7595b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case '!': 7605b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic.size() >= 8) 7615b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (memcmp(magic.data(),"!<arch>\n",8) == 0) 7625b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer return file_magic::archive; 7635b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer break; 7645b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer 7655b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case '\177': 7665b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic[1] == 'E' && magic[2] == 'L' && magic[3] == 'F') { 7675b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic.size() >= 18 && magic[17] == 0) 7685b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer switch (magic[16]) { 7695b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer default: break; 7705b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 1: return file_magic::elf_relocatable; 7715b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 2: return file_magic::elf_executable; 7725b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 3: return file_magic::elf_shared_object; 7735b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 4: return file_magic::elf_core; 7745b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer } 7755b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer } 7765b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer break; 7775b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer 7785b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0xCA: 7795b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic[1] == char(0xFE) && magic[2] == char(0xBA) && 7805b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer magic[3] == char(0xBE)) { 7815b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer // This is complicated by an overlap with Java class files. 7825b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer // See the Mach-O section in /usr/share/file/magic for details. 7835b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic.size() >= 8 && magic[7] < 43) 7845b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer // FIXME: Universal Binary of any type. 7855b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer return file_magic::macho_dynamically_linked_shared_lib; 7865b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer } 7875b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer break; 7885b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer 7895b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer // The two magic numbers for mach-o are: 7905b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer // 0xfeedface - 32-bit mach-o 7915b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer // 0xfeedfacf - 64-bit mach-o 7925b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0xFE: 7935b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0xCE: 7945b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0xCF: { 7955b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer uint16_t type = 0; 7965b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic[0] == char(0xFE) && magic[1] == char(0xED) && 7975b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer magic[2] == char(0xFA) && 7985b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer (magic[3] == char(0xCE) || magic[3] == char(0xCF))) { 7995b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer /* Native endian */ 8005b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic.size() >= 16) type = magic[14] << 8 | magic[15]; 8015b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer } else if ((magic[0] == char(0xCE) || magic[0] == char(0xCF)) && 8025b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer magic[1] == char(0xFA) && magic[2] == char(0xED) && 8035b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer magic[3] == char(0xFE)) { 8045b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer /* Reverse endian */ 8055b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic.size() >= 14) type = magic[13] << 8 | magic[12]; 8065b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer } 8075b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer switch (type) { 8085b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer default: break; 8095b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 1: return file_magic::macho_object; 8105b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 2: return file_magic::macho_executable; 8115b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 3: return file_magic::macho_fixed_virtual_memory_shared_lib; 8125b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 4: return file_magic::macho_core; 8135b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 5: return file_magic::macho_preload_executabl; 8145b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 6: return file_magic::macho_dynamically_linked_shared_lib; 8155b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 7: return file_magic::macho_dynamic_linker; 8165b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 8: return file_magic::macho_bundle; 8175b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 9: return file_magic::macho_dynamic_linker; 8185b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 10: return file_magic::macho_dsym_companion; 8195b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer } 8205b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer break; 8215b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer } 8225b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0xF0: // PowerPC Windows 8235b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0x83: // Alpha 32-bit 8245b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0x84: // Alpha 64-bit 8255b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0x66: // MPS R4000 Windows 8265b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0x50: // mc68K 8275b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0x4c: // 80386 Windows 8285b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic[1] == 0x01) 8295b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer return file_magic::coff_object; 8305b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer 8315b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0x90: // PA-RISC Windows 8325b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0x68: // mc68K Windows 8335b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic[1] == 0x02) 8345b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer return file_magic::coff_object; 8355b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer break; 8365b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer 8375b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0x4d: // Possible MS-DOS stub on Windows PE file 8385b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic[1] == 0x5a) { 8395b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer uint32_t off = 8405b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer *reinterpret_cast<const support::ulittle32_t*>(magic.data() + 0x3c); 8415b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer // PE/COFF file, either EXE or DLL. 8425b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (off < magic.size() && memcmp(magic.data() + off, "PE\0\0",4) == 0) 8435b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer return file_magic::pecoff_executable; 8445b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer } 8455b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer break; 8465b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer 8475b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer case 0x64: // x86-64 Windows. 8485b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer if (magic[1] == char(0x86)) 8495b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer return file_magic::coff_object; 8505b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer break; 8515b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer 8525b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer default: 8535b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer break; 8545b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer } 8555b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer return file_magic::unknown; 8565b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer} 8575b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer 8585b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencererror_code identify_magic(const Twine &path, file_magic &result) { 85928f0ed5c9de4a68f34c0219d4ab83652c4647150Michael J. Spencer SmallString<32> Magic; 86028f0ed5c9de4a68f34c0219d4ab83652c4647150Michael J. Spencer error_code ec = get_magic(path, Magic.capacity(), Magic); 86128f0ed5c9de4a68f34c0219d4ab83652c4647150Michael J. Spencer if (ec && ec != errc::value_too_large) 86228f0ed5c9de4a68f34c0219d4ab83652c4647150Michael J. Spencer return ec; 86328f0ed5c9de4a68f34c0219d4ab83652c4647150Michael J. Spencer 8645b08230930ee219382f6d0abe9d16aa160907169Michael J. Spencer result = identify_magic(Magic); 86558604cd944eec4a75046076cb53eb708aaf2ee09David Blaikie return error_code::success(); 86628f0ed5c9de4a68f34c0219d4ab83652c4647150Michael J. Spencer} 86728f0ed5c9de4a68f34c0219d4ab83652c4647150Michael J. Spencer 8687fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencernamespace { 8697fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencererror_code remove_all_r(StringRef path, file_type ft, uint32_t &count) { 8707fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer if (ft == file_type::directory_file) { 8717fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer // This code would be a lot better with exceptions ;/. 8727fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer error_code ec; 8731dd2ee7bf4d848e368829cb01033f297afb674abMichael J. Spencer directory_iterator i(path, ec); 8741dd2ee7bf4d848e368829cb01033f297afb674abMichael J. Spencer if (ec) return ec; 8751dd2ee7bf4d848e368829cb01033f297afb674abMichael J. Spencer for (directory_iterator e; i != e; i.increment(ec)) { 8767fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer if (ec) return ec; 8777fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer file_status st; 8787fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer if (error_code ec = i->status(st)) return ec; 8797fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer if (error_code ec = remove_all_r(i->path(), st.type(), count)) return ec; 8807fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer } 8817fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer bool obviously_this_exists; 8827fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer if (error_code ec = remove(path, obviously_this_exists)) return ec; 8837fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer assert(obviously_this_exists); 8847fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer ++count; // Include the directory itself in the items removed. 8857fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer } else { 8867fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer bool obviously_this_exists; 8877fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer if (error_code ec = remove(path, obviously_this_exists)) return ec; 8887fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer assert(obviously_this_exists); 8897fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer ++count; 8907fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer } 8917fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer 89258604cd944eec4a75046076cb53eb708aaf2ee09David Blaikie return error_code::success(); 8937fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer} 89463cc3a85cc10093f83f76ea9192f77929b58569eZhanyong Wan} // end unnamed namespace 8957fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer 8967fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencererror_code remove_all(const Twine &path, uint32_t &num_removed) { 8977fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer SmallString<128> path_storage; 8987fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer StringRef p = path.toStringRef(path_storage); 8997fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer 9007fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer file_status fs; 9017fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer if (error_code ec = status(path, fs)) 9027fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer return ec; 9037fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer num_removed = 0; 9047fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer return remove_all_r(p, fs.type(), num_removed); 9057fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer} 9067fd682aaf2ceeb953da190a2add326963ff45c3eMichael J. Spencer 9075bcdc7f7c4f1b5aa053b07a4b2ea95b750ed1715Michael J. Spencererror_code directory_entry::status(file_status &result) const { 9085bcdc7f7c4f1b5aa053b07a4b2ea95b750ed1715Michael J. Spencer return fs::status(Path, result); 9095bcdc7f7c4f1b5aa053b07a4b2ea95b750ed1715Michael J. Spencer} 9105bcdc7f7c4f1b5aa053b07a4b2ea95b750ed1715Michael J. Spencer 911bee0c38f595f52d424161dc1db9c0bfe61421957Michael J. Spencer} // end namespace fs 912bee0c38f595f52d424161dc1db9c0bfe61421957Michael J. Spencer} // end namespace sys 913bee0c38f595f52d424161dc1db9c0bfe61421957Michael J. Spencer} // end namespace llvm 914dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer 915dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer// Include the truly platform-specific parts. 916dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#if defined(LLVM_ON_UNIX) 917dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#include "Unix/PathV2.inc" 918dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#endif 919dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#if defined(LLVM_ON_WIN32) 920dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#include "Windows/PathV2.inc" 921dffde9964480f946d4308ce936b667b6c37b1059Michael J. Spencer#endif 922