Examples with ClassTree org.sonar.plugins.java.api.tree.ClassTree used on opensource projects

Example 11 with ClassTree

use of org.sonar.plugins.java.api.tree.ClassTree in project sonar-java by SonarSource.

the class MethodYieldTest method constraints_on_varargs.

@Test
public void constraints_on_varargs() throws Exception {
    ActionParser<Tree> p = JavaParser.createParser();
    CompilationUnitTree cut = (CompilationUnitTree) p.parse(new File("src/test/files/se/VarArgsYields.java"));
    SemanticModel semanticModel = SemanticModel.createFor(cut, new SquidClassLoader(new ArrayList<>()));
    SymbolicExecutionVisitor sev = new SymbolicExecutionVisitor(Lists.newArrayList(new SECheck[] {}), new BehaviorCache(new SquidClassLoader(new ArrayList<>())));
    JavaFileScannerContext context = mock(JavaFileScannerContext.class);
    when(context.getTree()).thenReturn(cut);
    when(context.getSemanticModel()).thenReturn(semanticModel);
    sev.scanFile(context);
    MethodSymbol methodSymbol = ((MethodTree) ((ClassTree) cut.types().get(0)).members().get(0)).symbol();
    MethodBehavior mb = getMethodBehavior(sev, "varArgMethod");
    List<MethodYield> yields = mb.yields();
    assertThat(yields).hasSize(5);
    assertThat(mb.exceptionalPathYields()).hasSize(4);
    MethodYield yield = mb.happyPathYields().findFirst().get();
    // check that we have NOT_NULL constraint on the first argument
    assertThat(yield.parametersConstraints.get(0).get(ObjectConstraint.class)).isEqualTo(ObjectConstraint.NOT_NULL);
    // check that we have NOT_NULL constraint on the variadic argument
    assertThat(yield.parametersConstraints.get(1).get(ObjectConstraint.class)).isEqualTo(ObjectConstraint.NOT_NULL);
    List<IdentifierTree> usages = methodSymbol.usages();
    assertThat(usages).hasSize(6);
    List<List<Type>> arguments = usages.stream().map(MethodYieldTest::getMethodIncoationArgumentsTypes).collect(Collectors.toList());
    ProgramState ps = ProgramState.EMPTY_STATE;
    ProgramState psResult;
    SymbolicValue svFirstArg = new SymbolicValue();
    SymbolicValue svVarArg1 = new SymbolicValue();
    SymbolicValue svVarArg2 = new SymbolicValue();
    SymbolicValue svResult = new SymbolicValue();
    // apply constraint NotNull to parameter
    Collection<ProgramState> arrayOfA = yield.statesAfterInvocation(Lists.newArrayList(svFirstArg, svVarArg1), arguments.get(0), ps, () -> svResult).collect(Collectors.toList());
    assertThat(arrayOfA).hasSize(1);
    psResult = arrayOfA.iterator().next();
    assertThat(psResult.getConstraint(svFirstArg, ObjectConstraint.class)).isEqualTo(ObjectConstraint.NOT_NULL);
    assertThat(psResult.getConstraint(svVarArg1, ObjectConstraint.class)).isEqualTo(ObjectConstraint.NOT_NULL);
    // apply constraint NotNull to parameter (B[] is a subtype of A[])
    Collection<ProgramState> arrayOfB = yield.statesAfterInvocation(Lists.newArrayList(svFirstArg, svVarArg1), arguments.get(1), ps, () -> svResult).collect(Collectors.toList());
    assertThat(arrayOfB).hasSize(1);
    psResult = arrayOfB.iterator().next();
    assertThat(psResult.getConstraint(svFirstArg, ObjectConstraint.class)).isEqualTo(ObjectConstraint.NOT_NULL);
    assertThat(psResult.getConstraint(svVarArg1, ObjectConstraint.class)).isEqualTo(ObjectConstraint.NOT_NULL);
    // no constraint, as 'a' is not an array
    Collection<ProgramState> objectA = yield.statesAfterInvocation(Lists.newArrayList(svFirstArg, svVarArg1), arguments.get(2), ps, () -> svResult).collect(Collectors.toList());
    assertThat(objectA).hasSize(1);
    psResult = objectA.iterator().next();
    assertThat(psResult.getConstraint(svFirstArg, ObjectConstraint.class)).isEqualTo(ObjectConstraint.NOT_NULL);
    assertThat(psResult.getConstraint(svVarArg1, ObjectConstraint.class)).isNull();
    // no constraint, as 'a' and 'b' can not receive the constraint of the array
    Collection<ProgramState> objectsAandB = yield.statesAfterInvocation(Lists.newArrayList(svFirstArg, svVarArg1, svVarArg2), arguments.get(3), ps, () -> svResult).collect(Collectors.toList());
    assertThat(objectsAandB).hasSize(1);
    psResult = objectsAandB.iterator().next();
    assertThat(psResult.getConstraint(svFirstArg, ObjectConstraint.class)).isEqualTo(ObjectConstraint.NOT_NULL);
    assertThat(psResult.getConstraint(svVarArg1, ObjectConstraint.class)).isNull();
    assertThat(psResult.getConstraint(svVarArg2, ObjectConstraint.class)).isNull();
    // no param, we only learn something about the argument which is not variadic
    Collection<ProgramState> noParam = yield.statesAfterInvocation(Lists.newArrayList(svFirstArg), arguments.get(4), ps, () -> svResult).collect(Collectors.toList());
    assertThat(noParam).hasSize(1);
    psResult = noParam.iterator().next();
    assertThat(psResult.getConstraint(svFirstArg, ObjectConstraint.class)).isEqualTo(ObjectConstraint.NOT_NULL);
    // null param, contradiction, no resulting program state
    ps = ProgramState.EMPTY_STATE.addConstraint(svFirstArg, ObjectConstraint.NULL);
    Collection<ProgramState> nullParam = yield.statesAfterInvocation(Lists.newArrayList(svFirstArg, svVarArg1), arguments.get(5), ps, () -> svResult).collect(Collectors.toList());
    assertThat(nullParam).isEmpty();
}

Example 12 with ClassTree

use of org.sonar.plugins.java.api.tree.ClassTree in project sonar-java by SonarSource.

the class ExpressionUtilsTest method test_simple_assignments.

@Test
public void test_simple_assignments() throws Exception {
    File file = new File("src/test/java/org/sonar/java/model/ExpressionUtilsTest.java");
    CompilationUnitTree tree = (CompilationUnitTree) JavaParser.createParser().parse(file);
    MethodTree methodTree = (MethodTree) ((ClassTree) tree.types().get(0)).members().get(1);
    List<AssignmentExpressionTree> assignments = findAssignmentExpressionTrees(methodTree);
    assertThat(assignments).hasSize(4);
    assertThat(ExpressionUtils.isSimpleAssignment(assignments.get(0))).isTrue();
    assertThat(ExpressionUtils.isSimpleAssignment(assignments.get(1))).isTrue();
    assertThat(ExpressionUtils.isSimpleAssignment(assignments.get(2))).isFalse();
    assertThat(ExpressionUtils.isSimpleAssignment(assignments.get(3))).isFalse();
}

Example 13 with ClassTree

use of org.sonar.plugins.java.api.tree.ClassTree in project sonar-java by SonarSource.

the class LiteralUtilsTest method setUp.

@BeforeClass
public static void setUp() {
    File file = new File("src/test/java/org/sonar/java/model/LiteralUtilsTest.java");
    CompilationUnitTree tree = (CompilationUnitTree) JavaParser.createParser().parse(file);
    ClassTree classTree = (ClassTree) tree.types().get(0);
    variables = classTree.members().stream().filter(member -> member.is(Tree.Kind.VARIABLE)).map(VariableTree.class::cast).collect(Collectors.toList());
}

Example 14 with ClassTree

use of org.sonar.plugins.java.api.tree.ClassTree in project sonar-java by SonarSource.

the class UtilityClassWithPublicConstructorCheck method visitNode.

@Override
public void visitNode(Tree tree) {
    ClassTree classTree = (ClassTree) tree;
    if (!hasSemantic() || !isUtilityClass(classTree) || isPrivateInnerClass(classTree)) {
        return;
    }
    boolean hasImplicitPublicConstructor = true;
    for (MethodTree explicitConstructor : getExplicitConstructors(classTree)) {
        hasImplicitPublicConstructor = false;
        if (isPublicConstructor(explicitConstructor)) {
            reportIssue(explicitConstructor.simpleName(), "Hide this public constructor.");
        }
    }
    if (hasImplicitPublicConstructor) {
        reportIssue(classTree.simpleName(), "Add a private constructor to hide the implicit public one.");
    }
}

Example 15 with ClassTree

use of org.sonar.plugins.java.api.tree.ClassTree in project sonar-java by SonarSource.

the class SpringComponentWithWrongScopeCheck method visitNode.

@Override
public void visitNode(Tree tree) {
    ClassTree clazzTree = (ClassTree) tree;
    SymbolMetadata clazzMeta = clazzTree.symbol().metadata();
    if (isSpringComponent(clazzMeta) && clazzMeta.isAnnotatedWith(SCOPE_ANNOTATION_FQN) && !isScopeSingleton(clazzMeta)) {
        checkScopeAnnotation(clazzTree);
    }
}