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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111656 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mikhail Glushenkov 2010-08-20 17:38:38 +00:00
parent 7e75cabba0
commit 7112c86fc2
3 changed files with 92 additions and 92 deletions
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14
include/llvm/Support/PrettyStackTrace.h
View File

@ -24,10 +24,10 @@ namespace llvm {
/// handlers which conflict with the ones installed by this module.
/// Defaults to false.
extern bool DisablePrettyStackTrace;
/// PrettyStackTraceEntry - This class is used to represent a frame of the
/// "pretty" stack trace that is dumped when a program crashes. You can define
/// subclasses of this and declare them on the program stack: when they are
/// subclasses of this and declare them on the program stack: when they are
/// constructed and destructed, they will add their symbolic frames to a
/// virtual stack trace. This gets dumped out if the program crashes.
class PrettyStackTraceEntry {
@ -37,14 +37,14 @@ namespace llvm {
public:
PrettyStackTraceEntry();
virtual ~PrettyStackTraceEntry();
/// print - Emit information about this stack frame to OS.
virtual void print(raw_ostream &OS) const = 0;
/// getNextEntry - Return the next entry in the list of frames.
const PrettyStackTraceEntry *getNextEntry() const { return NextEntry; }
};
/// PrettyStackTraceString - This object prints a specified string (which
/// should not contain newlines) to the stream as the stack trace when a crash
/// occurs.
@ -54,7 +54,7 @@ namespace llvm {
PrettyStackTraceString(const char *str) : Str(str) {}
virtual void print(raw_ostream &OS) const;
};
/// PrettyStackTraceProgram - This object prints a specified program arguments
/// to the stream as the stack trace when a crash occurs.
class PrettyStackTraceProgram : public PrettyStackTraceEntry {
@ -65,7 +65,7 @@ namespace llvm {
: ArgC(argc), ArgV(argv) {}
virtual void print(raw_ostream &OS) const;
};
} // end namespace llvm
#endif

10
include/llvm/Support/Regex.h
View File

@ -18,7 +18,7 @@ struct llvm_regex;
namespace llvm {
class StringRef;
template<typename T> class SmallVectorImpl;
class Regex {
public:
enum {
@ -26,9 +26,9 @@ namespace llvm {
/// Compile for matching that ignores upper/lower case distinctions.
IgnoreCase=1,
/// Compile for newline-sensitive matching. With this flag '[^' bracket
/// expressions and '.' never match newline. A ^ anchor matches the
/// null string after any newline in the string in addition to its normal
/// function, and the $ anchor matches the null string before any
/// expressions and '.' never match newline. A ^ anchor matches the
/// null string after any newline in the string in addition to its normal
/// function, and the $ anchor matches the null string before any
/// newline in the string in addition to its normal function.
Newline=2
};
@ -47,7 +47,7 @@ namespace llvm {
/// matches it contains. The number filled in by match will include this
/// many entries plus one for the whole regex (as element 0).
unsigned getNumMatches() const;
/// matches - Match the regex against a given \arg String.
///
/// \param Matches - If given, on a succesful match this will be filled in

160
utils/FileCheck/FileCheck.cpp
View File

@ -49,32 +49,32 @@ NoCanonicalizeWhiteSpace("strict-whitespace",
class Pattern {
SMLoc PatternLoc;
/// FixedStr - If non-empty, this pattern is a fixed string match with the
/// specified fixed string.
StringRef FixedStr;
/// RegEx - If non-empty, this is a regex pattern.
std::string RegExStr;
/// VariableUses - Entries in this vector map to uses of a variable in the
/// pattern, e.g. "foo[[bar]]baz". In this case, the RegExStr will contain
/// "foobaz" and we'll get an entry in this vector that tells us to insert the
/// value of bar at offset 3.
std::vector<std::pair<StringRef, unsigned> > VariableUses;
/// VariableDefs - Entries in this vector map to definitions of a variable in
/// the pattern, e.g. "foo[[bar:.*]]baz". In this case, the RegExStr will
/// contain "foo(.*)baz" and VariableDefs will contain the pair "bar",1. The
/// index indicates what parenthesized value captures the variable value.
std::vector<std::pair<StringRef, unsigned> > VariableDefs;
public:
Pattern() { }
bool ParsePattern(StringRef PatternStr, SourceMgr &SM);
/// Match - Match the pattern string against the input buffer Buffer. This
/// returns the position that is matched or npos if there is no match. If
/// there is a match, the size of the matched string is returned in MatchLen.
@ -103,19 +103,19 @@ private:
bool Pattern::ParsePattern(StringRef PatternStr, SourceMgr &SM) {
PatternLoc = SMLoc::getFromPointer(PatternStr.data());
// Ignore trailing whitespace.
while (!PatternStr.empty() &&
(PatternStr.back() == ' ' || PatternStr.back() == '\t'))
PatternStr = PatternStr.substr(0, PatternStr.size()-1);
// Check that there is something on the line.
if (PatternStr.empty()) {
SM.PrintMessage(PatternLoc, "found empty check string with prefix '" +
CheckPrefix+":'", "error");
return true;
}
// Check to see if this is a fixed string, or if it has regex pieces.
if (PatternStr.size() < 2 ||
(PatternStr.find("{{") == StringRef::npos &&
@ -123,18 +123,18 @@ bool Pattern::ParsePattern(StringRef PatternStr, SourceMgr &SM) {
FixedStr = PatternStr;
return false;
}
// Paren value #0 is for the fully matched string. Any new parenthesized
// values add from their.
unsigned CurParen = 1;
// Otherwise, there is at least one regex piece. Build up the regex pattern
// by escaping scary characters in fixed strings, building up one big regex.
while (!PatternStr.empty()) {
// RegEx matches.
if (PatternStr.size() >= 2 &&
PatternStr[0] == '{' && PatternStr[1] == '{') {
// Otherwise, this is the start of a regex match. Scan for the }}.
size_t End = PatternStr.find("}}");
if (End == StringRef::npos) {
@ -142,13 +142,13 @@ bool Pattern::ParsePattern(StringRef PatternStr, SourceMgr &SM) {
"found start of regex string with no end '}}'", "error");
return true;
}
if (AddRegExToRegEx(PatternStr.substr(2, End-2), CurParen, SM))
return true;
PatternStr = PatternStr.substr(End+2);
continue;
}
// Named RegEx matches. These are of two forms: [[foo:.*]] which matches .*
// (or some other regex) and assigns it to the FileCheck variable 'foo'. The
// second form is [[foo]] which is a reference to foo. The variable name
@ -163,14 +163,14 @@ bool Pattern::ParsePattern(StringRef PatternStr, SourceMgr &SM) {
"invalid named regex reference, no ]] found", "error");
return true;
}
StringRef MatchStr = PatternStr.substr(2, End-2);
PatternStr = PatternStr.substr(End+2);
// Get the regex name (e.g. "foo").
size_t NameEnd = MatchStr.find(':');
StringRef Name = MatchStr.substr(0, NameEnd);
if (Name.empty()) {
SM.PrintMessage(SMLoc::getFromPointer(Name.data()),
"invalid name in named regex: empty name", "error");
@ -187,31 +187,31 @@ bool Pattern::ParsePattern(StringRef PatternStr, SourceMgr &SM) {
"invalid name in named regex", "error");
return true;
}
// Name can't start with a digit.
if (isdigit(Name[0])) {
SM.PrintMessage(SMLoc::getFromPointer(Name.data()),
"invalid name in named regex", "error");
return true;
}
// Handle [[foo]].
if (NameEnd == StringRef::npos) {
VariableUses.push_back(std::make_pair(Name, RegExStr.size()));
continue;
}
// Handle [[foo:.*]].
VariableDefs.push_back(std::make_pair(Name, CurParen));
RegExStr += '(';
++CurParen;
if (AddRegExToRegEx(MatchStr.substr(NameEnd+1), CurParen, SM))
return true;
RegExStr += ')';
}
// Handle fixed string matches.
// Find the end, which is the start of the next regex.
size_t FixedMatchEnd = PatternStr.find("{{");
@ -260,7 +260,7 @@ bool Pattern::AddRegExToRegEx(StringRef RegexStr, unsigned &CurParen,
"invalid regex: " + Error, "error");
return true;
}
RegExStr += RegexStr.str();
CurParen += R.getNumMatches();
return false;
@ -278,14 +278,14 @@ size_t Pattern::Match(StringRef Buffer, size_t &MatchLen,
}
// Regex match.
// If there are variable uses, we need to create a temporary string with the
// actual value.
StringRef RegExToMatch = RegExStr;
std::string TmpStr;
if (!VariableUses.empty()) {
TmpStr = RegExStr;
unsigned InsertOffset = 0;
for (unsigned i = 0, e = VariableUses.size(); i != e; ++i) {
StringMap<StringRef>::iterator it =
@ -297,33 +297,33 @@ size_t Pattern::Match(StringRef Buffer, size_t &MatchLen,
// Look up the value and escape it so that we can plop it into the regex.
std::string Value;
AddFixedStringToRegEx(it->second, Value);
// Plop it into the regex at the adjusted offset.
TmpStr.insert(TmpStr.begin()+VariableUses[i].second+InsertOffset,
Value.begin(), Value.end());
InsertOffset += Value.size();
}
// Match the newly constructed regex.
RegExToMatch = TmpStr;
}
SmallVector<StringRef, 4> MatchInfo;
if (!Regex(RegExToMatch, Regex::Newline).match(Buffer, &MatchInfo))
return StringRef::npos;
// Successful regex match.
assert(!MatchInfo.empty() && "Didn't get any match");
StringRef FullMatch = MatchInfo[0];
// If this defines any variables, remember their values.
for (unsigned i = 0, e = VariableDefs.size(); i != e; ++i) {
assert(VariableDefs[i].second < MatchInfo.size() &&
"Internal paren error");
VariableTable[VariableDefs[i].first] = MatchInfo[VariableDefs[i].second];
}
MatchLen = FullMatch.size();
return FullMatch.data()-Buffer.data();
}
@ -421,19 +421,19 @@ void Pattern::PrintFailureInfo(const SourceMgr &SM, StringRef Buffer,
struct CheckString {
/// Pat - The pattern to match.
Pattern Pat;
/// Loc - The location in the match file that the check string was specified.
SMLoc Loc;
/// IsCheckNext - This is true if this is a CHECK-NEXT: directive (as opposed
/// to a CHECK: directive.
bool IsCheckNext;
/// NotStrings - These are all of the strings that are disallowed from
/// occurring between this match string and the previous one (or start of
/// file).
std::vector<std::pair<SMLoc, Pattern> > NotStrings;
CheckString(const Pattern &P, SMLoc L, bool isCheckNext)
: Pat(P), Loc(L), IsCheckNext(isCheckNext) {}
};
@ -443,7 +443,7 @@ struct CheckString {
static MemoryBuffer *CanonicalizeInputFile(MemoryBuffer *MB) {
SmallString<128> NewFile;
NewFile.reserve(MB->getBufferSize());
for (const char *Ptr = MB->getBufferStart(), *End = MB->getBufferEnd();
Ptr != End; ++Ptr) {
// If C is not a horizontal whitespace, skip it.
@ -451,18 +451,18 @@ static MemoryBuffer *CanonicalizeInputFile(MemoryBuffer *MB) {
NewFile.push_back(*Ptr);
continue;
}
// Otherwise, add one space and advance over neighboring space.
NewFile.push_back(' ');
while (Ptr+1 != End &&
(Ptr[1] == ' ' || Ptr[1] == '\t'))
++Ptr;
}
// Free the old buffer and return a new one.
MemoryBuffer *MB2 =
MemoryBuffer::getMemBufferCopy(NewFile.str(), MB->getBufferIdentifier());
delete MB;
return MB2;
}
@ -477,37 +477,37 @@ static bool ReadCheckFile(SourceMgr &SM,
MemoryBuffer *F =
MemoryBuffer::getFileOrSTDIN(CheckFilename.c_str(), &ErrorStr);
if (F == 0) {
errs() << "Could not open check file '" << CheckFilename << "': "
errs() << "Could not open check file '" << CheckFilename << "': "
<< ErrorStr << '\n';
return true;
}
// If we want to canonicalize whitespace, strip excess whitespace from the
// buffer containing the CHECK lines.
if (!NoCanonicalizeWhiteSpace)
F = CanonicalizeInputFile(F);
SM.AddNewSourceBuffer(F, SMLoc());
// Find all instances of CheckPrefix followed by : in the file.
StringRef Buffer = F->getBuffer();
std::vector<std::pair<SMLoc, Pattern> > NotMatches;
while (1) {
// See if Prefix occurs in the memory buffer.
Buffer = Buffer.substr(Buffer.find(CheckPrefix));
// If we didn't find a match, we're done.
if (Buffer.empty())
break;
const char *CheckPrefixStart = Buffer.data();
// When we find a check prefix, keep track of whether we find CHECK: or
// CHECK-NEXT:
bool IsCheckNext = false, IsCheckNot = false;
// Verify that the : is present after the prefix.
if (Buffer[CheckPrefix.size()] == ':') {
Buffer = Buffer.substr(CheckPrefix.size()+1);
@ -523,11 +523,11 @@ static bool ReadCheckFile(SourceMgr &SM,
Buffer = Buffer.substr(1);
continue;
}
// Okay, we found the prefix, yay. Remember the rest of the line, but
// ignore leading and trailing whitespace.
Buffer = Buffer.substr(Buffer.find_first_not_of(" \t"));
// Scan ahead to the end of line.
size_t EOL = Buffer.find_first_of("\n\r");
@ -538,10 +538,10 @@ static bool ReadCheckFile(SourceMgr &SM,
Pattern P;
if (P.ParsePattern(Buffer.substr(0, EOL), SM))
return true;
Buffer = Buffer.substr(EOL);
// Verify that CHECK-NEXT lines have at least one CHECK line before them.
if (IsCheckNext && CheckStrings.empty()) {
SM.PrintMessage(SMLoc::getFromPointer(CheckPrefixStart),
@ -549,34 +549,34 @@ static bool ReadCheckFile(SourceMgr &SM,
CheckPrefix+ ": line", "error");
return true;
}
// Handle CHECK-NOT.
if (IsCheckNot) {
NotMatches.push_back(std::make_pair(SMLoc::getFromPointer(Buffer.data()),
P));
continue;
}
// Okay, add the string we captured to the output vector and move on.
CheckStrings.push_back(CheckString(P,
PatternLoc,
IsCheckNext));
std::swap(NotMatches, CheckStrings.back().NotStrings);
}
if (CheckStrings.empty()) {
errs() << "error: no check strings found with prefix '" << CheckPrefix
<< ":'\n";
return true;
}
if (!NotMatches.empty()) {
errs() << "error: '" << CheckPrefix
<< "-NOT:' not supported after last check line.\n";
return true;
}
return false;
}
@ -586,11 +586,11 @@ static void PrintCheckFailed(const SourceMgr &SM, const CheckString &CheckStr,
// Otherwise, we have an error, emit an error message.
SM.PrintMessage(CheckStr.Loc, "expected string not found in input",
"error");
// Print the "scanning from here" line. If the current position is at the
// end of a line, advance to the start of the next line.
Buffer = Buffer.substr(Buffer.find_first_not_of(" \t\n\r"));
SM.PrintMessage(SMLoc::getFromPointer(Buffer.data()), "scanning from here",
"note");
@ -606,9 +606,9 @@ static unsigned CountNumNewlinesBetween(StringRef Range) {
// Scan for newline.
Range = Range.substr(Range.find_first_of("\n\r"));
if (Range.empty()) return NumNewLines;
++NumNewLines;
// Handle \n\r and \r\n as a single newline.
if (Range.size() > 1 &&
(Range[1] == '\n' || Range[1] == '\r') &&
@ -624,7 +624,7 @@ int main(int argc, char **argv) {
cl::ParseCommandLineOptions(argc, argv);
SourceMgr SM;
// Read the expected strings from the check file.
std::vector<CheckString> CheckStrings;
if (ReadCheckFile(SM, CheckStrings))
@ -635,35 +635,35 @@ int main(int argc, char **argv) {
MemoryBuffer *F =
MemoryBuffer::getFileOrSTDIN(InputFilename.c_str(), &ErrorStr);
if (F == 0) {
errs() << "Could not open input file '" << InputFilename << "': "
errs() << "Could not open input file '" << InputFilename << "': "
<< ErrorStr << '\n';
return true;
}
// Remove duplicate spaces in the input file if requested.
if (!NoCanonicalizeWhiteSpace)
F = CanonicalizeInputFile(F);
SM.AddNewSourceBuffer(F, SMLoc());
/// VariableTable - This holds all the current filecheck variables.
StringMap<StringRef> VariableTable;
// Check that we have all of the expected strings, in order, in the input
// file.
StringRef Buffer = F->getBuffer();
const char *LastMatch = Buffer.data();
for (unsigned StrNo = 0, e = CheckStrings.size(); StrNo != e; ++StrNo) {
const CheckString &CheckStr = CheckStrings[StrNo];
StringRef SearchFrom = Buffer;
// Find StrNo in the file.
size_t MatchLen = 0;
Buffer = Buffer.substr(CheckStr.Pat.Match(Buffer, MatchLen, VariableTable));
// If we didn't find a match, reject the input.
if (Buffer.empty()) {
PrintCheckFailed(SM, CheckStr, SearchFrom, VariableTable);
@ -690,7 +690,7 @@ int main(int argc, char **argv) {
"previous match was here", "note");
return 1;
}
if (NumNewLines != 1) {
SM.PrintMessage(CheckStr.Loc,
CheckPrefix+
@ -703,7 +703,7 @@ int main(int argc, char **argv) {
return 1;
}
}
// If this match had "not strings", verify that they don't exist in the
// skipped region.
for (unsigned ChunkNo = 0, e = CheckStr.NotStrings.size();
@ -713,20 +713,20 @@ int main(int argc, char **argv) {
MatchLen,
VariableTable);
if (Pos == StringRef::npos) continue;
SM.PrintMessage(SMLoc::getFromPointer(LastMatch+Pos),
CheckPrefix+"-NOT: string occurred!", "error");
SM.PrintMessage(CheckStr.NotStrings[ChunkNo].first,
CheckPrefix+"-NOT: pattern specified here", "note");
return 1;
}
// Otherwise, everything is good. Step over the matched text and remember
// the position after the match as the end of the last match.
Buffer = Buffer.substr(MatchLen);
LastMatch = Buffer.data();
}
return 0;
}