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//===- CXString.cpp - Routines for manipulating CXStrings -----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines routines for manipulating CXStrings. It should be the
// only file that has internal knowledge of the encoding of the data in
// CXStrings.
//
//===----------------------------------------------------------------------===//
#include "CXString.h"
#include "clang/Frontend/ASTUnit.h"
#include "clang-c/Index.h"
#include "llvm/Support/ErrorHandling.h"
using namespace clang;
using namespace clang::cxstring;
enum CXStringFlag { CXS_Unmanaged, CXS_Malloc };
CXString cxstring::createCXString(const char *String, bool DupString){
CXString Str;
if (DupString) {
Str.Spelling = strdup(String);
Str.private_flags = (unsigned) CXS_Malloc;
} else {
Str.Spelling = String;
Str.private_flags = (unsigned) CXS_Unmanaged;
}
return Str;
}
CXString cxstring::createCXString(llvm::StringRef String, bool DupString) {
CXString Result;
if (DupString || (!String.empty() && String.data()[String.size()] != 0)) {
char *Spelling = (char *)malloc(String.size() + 1);
memmove(Spelling, String.data(), String.size());
Spelling[String.size()] = 0;
Result.Spelling = Spelling;
Result.private_flags = (unsigned) CXS_Malloc;
} else {
Result.Spelling = String.data();
Result.private_flags = (unsigned) CXS_Unmanaged;
}
return Result;
}
//===----------------------------------------------------------------------===//
// libClang public APIs.
//===----------------------------------------------------------------------===//
extern "C" {
const char *clang_getCString(CXString string) {
return string.Spelling;
}
void clang_disposeString(CXString string) {
if (string.private_flags == CXS_Malloc && string.Spelling)
free((void*)string.Spelling);
}
} // end: extern "C"
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