Support/Path: Deprecate PathV1::isAbsolute.

llvm-svn: 122086

llvm/include/llvm/ADT/SmallString.h

@@ -27,6 +27,9 @@ public:
   // Default ctor - Initialize to empty.
   SmallString() {}
 
+  // Initialize from a StringRef.
+  SmallString(StringRef S) : SmallVector<char, InternalLen>(S.begin(), S.end()) {}
+
   // Initialize with a range.
   template<typename ItTy>
   SmallString(ItTy S, ItTy E) : SmallVector<char, InternalLen>(S, E) {}

llvm/include/llvm/Support/Compiler.h

@@ -15,6 +15,10 @@
 #ifndef LLVM_SUPPORT_COMPILER_H
 #define LLVM_SUPPORT_COMPILER_H
 
+#ifndef __has_feature
+# define __has_feature(x) 0
+#endif
+
 /// LLVM_LIBRARY_VISIBILITY - If a class marked with this attribute is linked
 /// into a shared library, then the class should be private to the library and
 /// not accessible from outside it.  Can also be used to mark variables and
@@ -107,4 +111,19 @@
 #define LLVM_ATTRIBUTE_NORETURN
 #endif
 
+// LLVM_ATTRIBUTE_DEPRECATED(decl, "message")
+#if __has_feature(attribute_deprecated_with_message)
+# define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
+  decl __attribute__((deprecated(message)))
+#elif defined(__GNUC__)
+# define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
+  decl __attribute__((deprecated))
+#elif defined(_MSC_VER)
+# define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
+  __declspec(deprecated(message)) decl
+#else
+# define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
+  decl
+#endif
+
 #endif

llvm/include/llvm/Support/PathV1.h

@@ -15,11 +15,15 @@
 #define LLVM_SYSTEM_PATH_H
 
 #include "llvm/ADT/StringRef.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/TimeValue.h"
 #include <set>
 #include <string>
 #include <vector>
 
+#define LLVMV_PATH_DEPRECATED_MSG \
+  "PathV1 is being deprecated, please use the PathV2 API."
+
 namespace llvm {
 namespace sys {
 
@@ -300,12 +304,12 @@ namespace sys {
       /// This function determines if the path name is absolute, as opposed to
       /// relative.
       /// @brief Determine if the path is absolute.
-      bool isAbsolute() const;
+      LLVM_ATTRIBUTE_DEPRECATED(bool isAbsolute() const, LLVMV_PATH_DEPRECATED_MSG);
 
       /// This function determines if the path name is absolute, as opposed to
       /// relative.
       /// @brief Determine if the path is absolute.
-      static bool isAbsolute(const char *NameStart, unsigned NameLen);
+      LLVM_ATTRIBUTE_DEPRECATED(static bool isAbsolute(const char *NameStart, unsigned NameLen), LLVMV_PATH_DEPRECATED_MSG);
 
       /// This function opens the file associated with the path name provided by
       /// the Path object and reads its magic number. If the magic number at the

llvm/lib/CompilerDriver/Action.cpp

@@ -56,7 +56,7 @@ namespace {
   int ExecuteProgram (const std::string& name, const StrVector& args) {
     sys::Path prog(name);
 
-    if (!prog.isAbsolute()) {
+    if (sys::path::is_relative(prog.str())) {
       prog = PrependMainExecutablePath(name, ProgramName,
                                        (void *)(intptr_t)&Main);