+ return true;
+}
+
+bool Archive::isBitcodeArchive() {
+ // Make sure the symTab has been loaded. In most cases this should have been
+ // done when the archive was constructed, but still, this is just in case.
+ if (symTab.empty())
+ if (!loadSymbolTable(0))
+ return false;
+
+ // Now that we know it's been loaded, return true
+ // if it has a size
+ if (symTab.size()) return true;
+
+ // We still can't be sure it isn't a bitcode archive
+ if (!loadArchive(0))
+ return false;
+
+ std::vector<Module *> Modules;
+ std::string ErrorMessage;
+
+ // Scan the archive, trying to load a bitcode member. We only load one to
+ // see if this works.
+ for (iterator I = begin(), E = end(); I != E; ++I) {
+ if (!I->isBitcode())
+ continue;
+
+ std::string FullMemberName =
+ archPath.str() + "(" + I->getPath().str() + ")";
+
+ MemoryBuffer *Buffer =
+ MemoryBuffer::getMemBufferCopy(StringRef(I->getData(), I->getSize()),
+ FullMemberName.c_str());
+ Module *M = ParseBitcodeFile(Buffer, Context);
+ delete Buffer;
+ if (!M)
+ return false; // Couldn't parse bitcode, not a bitcode archive.
+ delete M;
+ return true;
+ }
+
+ return false;