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

Example 76 with ExpressionTree

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

the class AnnotationDefaultArgumentCheck method visitNode.

@Override
public void visitNode(Tree tree) {
    AnnotationTree annotationTree = (AnnotationTree) tree;
    TypeSymbol annotationSymbol = annotationTree.symbolType().symbol();
    if (annotationSymbol.isUnknown()) {
        return;
    }
    Map<String, Object> defaultValueByName = annotationSymbol.memberSymbols().stream().filter(Symbol::isMethodSymbol).map(s -> (JavaSymbol.MethodJavaSymbol) s).filter(s -> s.defaultValue() != null).collect(Collectors.toMap(Symbol::name, JavaSymbol.MethodJavaSymbol::defaultValue));
    for (ExpressionTree argument : annotationTree.arguments()) {
        Tree valueSet = argument;
        // Single element annotation : JLS8 9.7.3 : one param must be named value.
        String paramName = "value";
        if (argument.is(Tree.Kind.ASSIGNMENT)) {
            AssignmentExpressionTree assignmentTree = (AssignmentExpressionTree) argument;
            IdentifierTree nameTree = (IdentifierTree) assignmentTree.variable();
            paramName = nameTree.name();
            valueSet = assignmentTree.expression();
        }
        if (setValueIsSameAsDefaultValue(defaultValueByName.get(paramName), valueSet)) {
            reportIssue(argument, String.format("Remove this default value assigned to parameter \"%s\".", paramName));
        }
    }
}

Example 77 with ExpressionTree

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

the class DeadStoreCheck method handleVariable.

private void handleVariable(Set<Symbol> out, VariableTree localVar) {
    Symbol symbol = localVar.symbol();
    ExpressionTree initializer = localVar.initializer();
    if (initializer != null && !isUsualDefaultValue(initializer) && !out.contains(symbol)) {
        createIssue(localVar.equalToken(), initializer, symbol);
    }
    out.remove(symbol);
}

Example 78 with ExpressionTree

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

the class DeadStoreCheck method handleAssignment.

private void handleAssignment(Set<Symbol> out, Set<Tree> assignmentLHS, AssignmentExpressionTree element) {
    ExpressionTree lhs = ExpressionUtils.skipParentheses(element.variable());
    if (lhs.is(Tree.Kind.IDENTIFIER)) {
        Symbol symbol = ((IdentifierTree) lhs).symbol();
        if (isLocalVariable(symbol) && !out.contains(symbol) && (element.is(Tree.Kind.ASSIGNMENT) || isParentExpressionStatement(element))) {
            createIssue(element.operatorToken(), element.expression(), symbol);
        }
        assignmentLHS.add(lhs);
        if (element.is(Tree.Kind.ASSIGNMENT)) {
            out.remove(symbol);
        } else {
            out.add(symbol);
        }
    }
}

Example 79 with ExpressionTree

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

the class DeprecatedHashAlgorithmCheck method algorithm.

private static Optional<InsecureAlgorithm> algorithm(ExpressionTree invocationArgument) {
    ExpressionTree expectedAlgorithm = invocationArgument;
    ExpressionTree defaultPropertyValue = JavaPropertiesHelper.retrievedPropertyDefaultValue(invocationArgument);
    if (defaultPropertyValue != null) {
        expectedAlgorithm = defaultPropertyValue;
    }
    if (expectedAlgorithm.is(Tree.Kind.STRING_LITERAL)) {
        String algorithmName = LiteralUtils.trimQuotes(((LiteralTree) expectedAlgorithm).value());
        return Arrays.stream(InsecureAlgorithm.values()).filter(alg -> alg.match(algorithmName)).findFirst();
    }
    return Optional.empty();
}

Example 80 with ExpressionTree

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

the class CollectionSizeAndArrayLengthCheck method checkArrayLength.

private void checkArrayLength(MemberSelectExpressionTree testedValue, BinaryExpressionTree bet, boolean leftIsZero) {
    if (!"length".equals(testedValue.identifier().name())) {
        return;
    }
    ExpressionTree expression = testedValue.expression();
    if (!expression.symbolType().isArray()) {
        return;
    }
    reportIssue(bet, leftIsZero, ARRAY_ISSUE_MSG, arrayName(expression));
}