maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

clang: Add support for s// edit form of QA_OVERRIDE_GCC3_OPTIONS. 

- Used to do regex patsubst on arguments.

llvm-svn: 96512
This commit is contained in:
Daniel Dunbar 2010-02-17 21:00:34 +00:00
parent 0ac9445098
commit d2b20c1348
1 changed files with 22 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
clang/tools/driver/driver.cpp
View File

@ -21,6 +21,7 @@
#include "llvm/Config/config.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Regex.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Host.h"
#include "llvm/System/Path.h"
@ -71,7 +72,7 @@ llvm::sys::Path GetExecutablePath(const char *Argv0, bool CanonicalPrefixes) {
}
static const char *SaveStringInSet(std::set<std::string> &SavedStrings,
const std::string &S) {
llvm::StringRef S) {
return SavedStrings.insert(S).first->c_str();
}
@ -87,8 +88,8 @@ static const char *SaveStringInSet(std::set<std::string> &SavedStrings,
///
/// '+': Add FOO as a new argument at the end of the command line.
///
/// 's/XXX/YYY/': Replace the literal argument XXX by YYY in the
/// command line.
/// 's/XXX/YYY/': Substitute the regular expression XXX with YYY in the command
/// line.
///
/// 'xOPTION': Removes all instances of the literal argument OPTION.
///
@ -104,20 +105,34 @@ static const char *SaveStringInSet(std::set<std::string> &SavedStrings,
/// \param SavedStrings - Set to use for storing string representations.
void ApplyOneQAOverride(llvm::raw_ostream &OS,
std::vector<const char*> &Args,
const std::string &Edit,
llvm::StringRef Edit,
std::set<std::string> &SavedStrings) {
// This does not need to be efficient.
if (Edit[0] == '^') {
const char *Str =
SaveStringInSet(SavedStrings, Edit.substr(1, std::string::npos));
SaveStringInSet(SavedStrings, Edit.substr(1));
OS << "### Adding argument " << Str << " at beginning\n";
Args.insert(Args.begin() + 1, Str);
} else if (Edit[0] == '+') {
const char *Str =
SaveStringInSet(SavedStrings, Edit.substr(1, std::string::npos));
SaveStringInSet(SavedStrings, Edit.substr(1));
OS << "### Adding argument " << Str << " at end\n";
Args.push_back(Str);
} else if (Edit[0] == 's' && Edit[1] == '/' && Edit.endswith("/") &&
Edit.slice(2, Edit.size()-1).find('/') != llvm::StringRef::npos) {
llvm::StringRef MatchPattern = Edit.substr(2).split('/').first;
llvm::StringRef ReplPattern = Edit.substr(2).split('/').second;
ReplPattern = ReplPattern.slice(0, ReplPattern.size()-1);
for (unsigned i = 1, e = Args.size(); i != e; ++i) {
std::string Repl = llvm::Regex(MatchPattern).sub(ReplPattern, Args[i]);
if (Repl != Args[i]) {
OS << "### Replacing '" << Args[i] << "' with '" << Repl << "'\n";
Args[i] = SaveStringInSet(SavedStrings, Repl);
}
}
} else if (Edit[0] == 'x' || Edit[0] == 'X') {
std::string Option = Edit.substr(1, std::string::npos);
for (unsigned i = 1; i < Args.size();) {
@ -147,7 +162,7 @@ void ApplyOneQAOverride(llvm::raw_ostream &OS,
++i;
}
OS << "### Adding argument " << Edit << " at end\n";
Args.push_back(SaveStringInSet(SavedStrings, '-' + Edit));
Args.push_back(SaveStringInSet(SavedStrings, '-' + Edit.str()));
} else {
OS << "### Unrecognized edit: " << Edit << "\n";
}