Author: bogner
Date: Thu Oct 30 15:29:48 2014
New Revision: 220926
URL: http://llvm.org/viewvc/llvm-project?rev=220926&view=rev
Log:
llvm-cov: Very basic top level help
Modified:
llvm/trunk/tools/llvm-cov/llvm-cov.cpp
Modified: llvm/trunk/tools/llvm-cov/llvm-cov.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-cov/llvm-cov.cpp?rev=220926&r1=220925&r2=220926&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-cov/llvm-cov.cpp (original)
+++ llvm/trunk/tools/llvm-cov/llvm-cov.cpp Thu Oct 30 15:29:48 2014
@@ -12,6 +12,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringSwitch.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Path.h"
#include <string>
@@ -30,6 +31,13 @@ int convert_for_testing_main(int argc, c
/// \brief The main entry point for the gcov compatible coverage tool.
int gcov_main(int argc, const char **argv);
+/// \brief Top level help.
+int help_main(int argc, const char **argv) {
+ errs() << "OVERVIEW: LLVM code coverage tool\n\n"
+ << "USAGE: llvm-cov {gcov|report|show}\n";
+ return 0;
+}
+
int main(int argc, const char **argv) {
// If argv[0] is or ends with 'gcov', always be gcov compatible
if (sys::path::stem(argv[0]).endswith_lower("gcov"))
@@ -37,17 +45,15 @@ int main(int argc, const char **argv) {
// Check if we are invoking a specific tool command.
if (argc > 1) {
- int (*func)(int, const char **) = nullptr;
-
- StringRef command = argv[1];
- if (command.equals_lower("show"))
- func = show_main;
- else if (command.equals_lower("report"))
- func = report_main;
- else if (command.equals_lower("convert-for-testing"))
- func = convert_for_testing_main;
- else if (command.equals_lower("gcov"))
- func = gcov_main;
+ typedef int (*MainFunction)(int, const char **);
+ MainFunction func =
+ StringSwitch<MainFunction>(argv[1])
+ .Case("convert-for-testing", convert_for_testing_main)
+ .Case("gcov", gcov_main)
+ .Case("report", report_main)
+ .Case("show", show_main)
+ .Cases("-h", "-help", "--help", help_main)
+ .Default(nullptr);
if (func) {
std::string Invocation = std::string(argv[0]) + " " + argv[1];