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Replace startsWith functions with StringRef. 

llvm-svn: 86774
This commit is contained in:
Daniel Dunbar 2009-11-11 00:52:00 +00:00
parent 9169a37daf
commit 045c92f812
1 changed files with 4 additions and 25 deletions
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29
clang/lib/Frontend/PCHReader.cpp
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@ -152,26 +152,6 @@ static std::vector<std::string> splitLines(const char *Str, unsigned Len,
return Lines;
}
/// \brief Determine whether the string Haystack starts with the
/// substring Needle.
static bool startsWith(const std::string &Haystack, const char *Needle) {
for (unsigned I = 0, N = Haystack.size(); Needle[I] != 0; ++I) {
if (I == N)
return false;
if (Haystack[I] != Needle[I])
return false;
}
return true;
}
/// \brief Determine whether the string Haystack starts with the
/// substring Needle.
static inline bool startsWith(const std::string &Haystack,
const std::string &Needle) {
return startsWith(Haystack, Needle.c_str());
}
bool PCHValidator::ReadPredefinesBuffer(const char *PCHPredef,
unsigned PCHPredefLen,
FileID PCHBufferID,
@ -207,7 +187,7 @@ bool PCHValidator::ReadPredefinesBuffer(const char *PCHPredef,
bool ConflictingDefines = false;
for (unsigned I = 0, N = MissingPredefines.size(); I != N; ++I) {
const std::string &Missing = MissingPredefines[I];
if (!startsWith(Missing, "#define ") != 0) {
if (!llvm::StringRef(Missing).startswith("#define ")) {
Reader.Diag(diag::warn_pch_compiler_options_mismatch);
return true;
}
@ -230,7 +210,7 @@ bool PCHValidator::ReadPredefinesBuffer(const char *PCHPredef,
= std::lower_bound(CmdLineLines.begin(), CmdLineLines.end(),
MacroDefStart);
for (; ConflictPos != CmdLineLines.end(); ++ConflictPos) {
if (!startsWith(*ConflictPos, MacroDefStart)) {
if (!llvm::StringRef(*ConflictPos).startswith(MacroDefStart)) {
// Different macro; we're done.
ConflictPos = CmdLineLines.end();
break;
@ -296,7 +276,7 @@ bool PCHValidator::ReadPredefinesBuffer(const char *PCHPredef,
std::back_inserter(ExtraPredefines));
for (unsigned I = 0, N = ExtraPredefines.size(); I != N; ++I) {
const std::string &Extra = ExtraPredefines[I];
if (!startsWith(Extra, "#define ") != 0) {
if (!llvm::StringRef(Extra).startswith("#define ")) {
Reader.Diag(diag::warn_pch_compiler_options_mismatch);
return true;
}
@ -316,8 +296,7 @@ bool PCHValidator::ReadPredefinesBuffer(const char *PCHPredef,
// the PCH file.
if (IdentifierInfo *II = Reader.get(MacroName.c_str(),
MacroName.c_str() + MacroName.size())) {
Reader.Diag(diag::warn_macro_name_used_in_pch)
<< II;
Reader.Diag(diag::warn_macro_name_used_in_pch) << II;
return true;
}