[analyzer] New flag to print all -analyzer-config options
A new -cc1 flag is avaible for the said purpose: -analyzer-config-help
Differential Revision: https://reviews.llvm.org/D53296
llvm-svn: 345989
diff --git a/clang/lib/StaticAnalyzer/Frontend/CheckerRegistration.cpp b/clang/lib/StaticAnalyzer/Frontend/CheckerRegistration.cpp
index 76e66cc..03d2ef3 100644
--- a/clang/lib/StaticAnalyzer/Frontend/CheckerRegistration.cpp
+++ b/clang/lib/StaticAnalyzer/Frontend/CheckerRegistration.cpp
@@ -22,6 +22,7 @@
#include "clang/StaticAnalyzer/Frontend/FrontendActions.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/DynamicLibrary.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
#include <memory>
@@ -157,3 +158,74 @@
SmallVector<CheckerOptInfo, 8> checkerOpts = getCheckerOptList(opts);
ClangCheckerRegistry(plugins).printList(out, checkerOpts);
}
+
+void ento::printAnalyzerConfigList(raw_ostream &out) {
+ out << "OVERVIEW: Clang Static Analyzer -analyzer-config Option List\n\n";
+ out << "USAGE: clang -cc1 [CLANG_OPTIONS] -analyzer-config "
+ "<OPTION1=VALUE,OPTION2=VALUE,...>\n\n";
+ out << " clang -cc1 [CLANG_OPTIONS] -analyzer-config OPTION1=VALUE, "
+ "-analyzer-config OPTION2=VALUE, ...\n\n";
+ out << " clang [CLANG_OPTIONS] -Xclang -analyzer-config -Xclang"
+ "<OPTION1=VALUE,OPTION2=VALUE,...>\n\n";
+ out << " clang [CLANG_OPTIONS] -Xclang -analyzer-config -Xclang "
+ "OPTION1=VALUE, -Xclang -analyzer-config -Xclang "
+ "OPTION2=VALUE, ...\n\n";
+ out << "OPTIONS:\n\n";
+
+ using OptionAndDescriptionTy = std::pair<StringRef, std::string>;
+ OptionAndDescriptionTy PrintableOptions[] = {
+#define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \
+ { \
+ CMDFLAG, \
+ llvm::Twine(llvm::Twine() + "(" + \
+ (#TYPE == "StringRef" ? "string" : #TYPE ) + ") " DESC \
+ " (default: " #DEFAULT_VAL ")").str() \
+ },
+
+#define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \
+ SHALLOW_VAL, DEEP_VAL) \
+ { \
+ CMDFLAG, \
+ llvm::Twine(llvm::Twine() + "(" + \
+ (#TYPE == "StringRef" ? "string" : #TYPE ) + ") " DESC \
+ " (default: " #SHALLOW_VAL " in shallow mode, " #DEEP_VAL \
+ " in deep mode)").str() \
+ },
+#include "clang/StaticAnalyzer/Core/AnalyzerOptions.def"
+#undef ANALYZER_OPTION
+#undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE
+ };
+
+ llvm::sort(PrintableOptions, [](const OptionAndDescriptionTy &LHS,
+ const OptionAndDescriptionTy &RHS) {
+ return LHS.first < RHS.first;
+ });
+
+ constexpr size_t MinLineWidth = 70;
+ constexpr size_t PadForOpt = 2;
+ constexpr size_t OptionWidth = 30;
+ constexpr size_t PadForDesc = PadForOpt + OptionWidth;
+ static_assert(MinLineWidth > PadForDesc, "MinLineWidth must be greater!");
+
+ llvm::formatted_raw_ostream FOut(out);
+
+ for (const auto &Pair : PrintableOptions) {
+ FOut.PadToColumn(PadForOpt) << Pair.first;
+
+ // If the buffer's length is greater then PadForDesc, print a newline.
+ if (FOut.getColumn() > PadForDesc)
+ FOut << '\n';
+
+ FOut.PadToColumn(PadForDesc);
+
+ for (char C : Pair.second) {
+ if (FOut.getColumn() > MinLineWidth && C == ' ') {
+ FOut << '\n';
+ FOut.PadToColumn(PadForDesc);
+ continue;
+ }
+ FOut << C;
+ }
+ FOut << "\n\n";
+ }
+}