Exemplos de explicitCastExpr em C++ (Cpp)

Exemplo n.º 1

Arquivo: ContainerSizeEmptyCheck.cpp Projeto: chapuni/llvm-project

void ContainerSizeEmptyCheck::registerMatchers(MatchFinder *Finder) {
  const auto WrongUse = anyOf(
      hasParent(
          binaryOperator(
              anyOf(has(integerLiteral(equals(0))),
                    allOf(anyOf(hasOperatorName("<"), hasOperatorName(">="),
                                hasOperatorName(">"), hasOperatorName("<=")),
                          hasEitherOperand(integerLiteral(equals(1))))))
              .bind("SizeBinaryOp")),
      hasParent(implicitCastExpr(
          hasImplicitDestinationType(isBoolType()),
          anyOf(
              hasParent(unaryOperator(hasOperatorName("!")).bind("NegOnSize")),
              anything()))),
      hasParent(explicitCastExpr(hasDestinationType(isBoolType()))));

  Finder->addMatcher(
      memberCallExpr(
          on(expr(anyOf(hasType(namedDecl(stlContainer())),
                        hasType(pointsTo(namedDecl(stlContainer()))),
                        hasType(references(namedDecl(stlContainer())))))
                 .bind("STLObject")),
          callee(methodDecl(hasName("size"))), WrongUse).bind("SizeCallExpr"),
      this);
}

Exemplo n.º 2

Arquivo: ProBoundsArrayToPointerDecayCheck.cpp Projeto: GameFusion/clang-tools-extra

void ProBoundsArrayToPointerDecayCheck::registerMatchers(MatchFinder *Finder) {
  if (!getLangOpts().CPlusPlus)
    return;

  // The only allowed array to pointer decay
  // 1) just before array subscription
  // 2) inside a range-for over an array
  // 3) if it converts a string literal to a pointer
  Finder->addMatcher(
      implicitCastExpr(unless(hasParent(arraySubscriptExpr())),
                       unless(hasParentIgnoringImpCasts(explicitCastExpr())),
                       unless(isInsideOfRangeBeginEndStmt()),
                       unless(hasSourceExpression(stringLiteral())))
          .bind("cast"),
      this);
}

Exemplo n.º 3

Arquivo: ContainerSizeEmptyCheck.cpp Projeto: cierpuchaw/clang-tools-extra

void ContainerSizeEmptyCheck::registerMatchers(MatchFinder *Finder) {
  // Only register the matchers for C++; the functionality currently does not
  // provide any benefit to other languages, despite being benign.
  if (!getLangOpts().CPlusPlus)
    return;

  const auto ValidContainer = cxxRecordDecl(isSameOrDerivedFrom(
      namedDecl(
          has(cxxMethodDecl(
                  isConst(), parameterCountIs(0), isPublic(), hasName("size"),
                  returns(qualType(isInteger(), unless(booleanType()))))
                  .bind("size")),
          has(cxxMethodDecl(isConst(), parameterCountIs(0), isPublic(),
                            hasName("empty"), returns(booleanType()))
                  .bind("empty")))
          .bind("container")));

  const auto WrongUse = anyOf(
      hasParent(binaryOperator(
                    matchers::isComparisonOperator(),
                    hasEitherOperand(ignoringImpCasts(anyOf(
                        integerLiteral(equals(1)), integerLiteral(equals(0))))))
                    .bind("SizeBinaryOp")),
      hasParent(implicitCastExpr(
          hasImplicitDestinationType(booleanType()),
          anyOf(
              hasParent(unaryOperator(hasOperatorName("!")).bind("NegOnSize")),
              anything()))),
      hasParent(explicitCastExpr(hasDestinationType(booleanType()))));

  Finder->addMatcher(
      cxxMemberCallExpr(on(expr(anyOf(hasType(ValidContainer),
                                      hasType(pointsTo(ValidContainer)),
                                      hasType(references(ValidContainer))))
                               .bind("STLObject")),
                        callee(cxxMethodDecl(hasName("size"))), WrongUse)
          .bind("SizeCallExpr"),
      this);
}

Exemplo n.º 4

Arquivo: UseBoolLiteralsCheck.cpp Projeto: cierpuchaw/clang-tools-extra

void UseBoolLiteralsCheck::registerMatchers(MatchFinder *Finder) {
  if (!getLangOpts().CPlusPlus)
    return;

  Finder->addMatcher(
      implicitCastExpr(
          has(ignoringParenImpCasts(integerLiteral().bind("literal"))),
          hasImplicitDestinationType(qualType(booleanType())),
          unless(isInTemplateInstantiation()),
          anyOf(hasParent(explicitCastExpr().bind("cast")), anything())),
      this);

  Finder->addMatcher(
      conditionalOperator(
          hasParent(implicitCastExpr(
              hasImplicitDestinationType(qualType(booleanType())),
              unless(isInTemplateInstantiation()))),
          eachOf(hasTrueExpression(
                     ignoringParenImpCasts(integerLiteral().bind("literal"))),
                 hasFalseExpression(
                     ignoringParenImpCasts(integerLiteral().bind("literal"))))),
      this);
}

Exemplo n.º 5

Arquivo: MisplacedWideningCastCheck.cpp Projeto: llvm-project/llvm-project

void MisplacedWideningCastCheck::registerMatchers(MatchFinder *Finder) {
  const auto Calc =
      expr(anyOf(binaryOperator(
                     anyOf(hasOperatorName("+"), hasOperatorName("-"),
                           hasOperatorName("*"), hasOperatorName("<<"))),
                 unaryOperator(hasOperatorName("~"))),
           hasType(isInteger()))
          .bind("Calc");

  const auto ExplicitCast = explicitCastExpr(hasDestinationType(isInteger()),
                                             has(ignoringParenImpCasts(Calc)));
  const auto ImplicitCast =
      implicitCastExpr(hasImplicitDestinationType(isInteger()),
                       has(ignoringParenImpCasts(Calc)));
  const auto Cast = expr(anyOf(ExplicitCast, ImplicitCast)).bind("Cast");

  Finder->addMatcher(varDecl(hasInitializer(Cast)), this);
  Finder->addMatcher(returnStmt(hasReturnValue(Cast)), this);
  Finder->addMatcher(callExpr(hasAnyArgument(Cast)), this);
  Finder->addMatcher(binaryOperator(hasOperatorName("="), hasRHS(Cast)), this);
  Finder->addMatcher(
      binaryOperator(matchers::isComparisonOperator(), hasEitherOperand(Cast)),
      this);
}