void SuspiciousEnumUsageCheck::registerMatchers(MatchFinder *Finder) {
const auto enumExpr = [](StringRef RefName, StringRef DeclName) {
return allOf(ignoringImpCasts(expr().bind(RefName)),
ignoringImpCasts(hasType(enumDecl().bind(DeclName))));
};
Finder->addMatcher(
binaryOperator(hasOperatorName("|"), hasLHS(enumExpr("", "enumDecl")),
hasRHS(allOf(enumExpr("", "otherEnumDecl"),
ignoringImpCasts(hasType(enumDecl(
unless(equalsBoundNode("enumDecl"))))))))
.bind("diffEnumOp"),
this);
Finder->addMatcher(
binaryOperator(anyOf(hasOperatorName("+"), hasOperatorName("|")),
hasLHS(enumExpr("lhsExpr", "enumDecl")),
hasRHS(allOf(enumExpr("rhsExpr", ""),
ignoringImpCasts(hasType(enumDecl(
equalsBoundNode("enumDecl"))))))),
this);
Finder->addMatcher(
binaryOperator(anyOf(hasOperatorName("+"), hasOperatorName("|")),
hasEitherOperand(
allOf(hasType(isInteger()), unless(enumExpr("", "")))),
hasEitherOperand(enumExpr("enumExpr", "enumDecl"))),
this);
Finder->addMatcher(
binaryOperator(anyOf(hasOperatorName("|="), hasOperatorName("+=")),
hasRHS(enumExpr("enumExpr", "enumDecl"))),
this);
}
#include "ASTUtility.h"
//match sturct/union/class
DeclarationMatcher enumDeclMatcher = enumDecl().bind("enumDecl");
class EnumDeclPrinter : public MatchFinder::MatchCallback {
public:
virtual void run(const MatchFinder::MatchResult &Result)
{
//get the node
clang::ASTContext *Context = Result.Context;
const clang::EnumDecl *enumerator = Result.Nodes.getNodeAs<clang::EnumDecl>("enumDecl");
if(!enumerator || ASTUtility::IsDeclInSTDFile(enumerator, Context)) return;
if (!enumerator -> isScopedUsingClassTag())
ASTUtility::Print(enumerator, Context, "Rule025");
}
};
//"My tool options" is the name.
static llvm::cl::OptionCategory MyToolCategory("My tool options");
int main(int argc, const char **argv)
{
//CommonOptionsParser constructor will parse arguments and create a
//CompilationDatabase. In case of error it will terminate the program.
CommonOptionsParser OptionsParser(argc, argv, MyToolCategory);
//once we have a CompilationDatabase, we can create a ClangTool and run our
//FrontendAction over some code.
ClangTool Tool(OptionsParser.getCompilations(),
